F:	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
F04:	POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B:	POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary piston or oscillating piston type F04C; non-positive displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F; crankshafts, crossheads, connecting-rods F16C; flywheels F16F; gearings for interconverting rotary motion and reciprocating motion in general F16H; pistons, piston-rods, cylinders, in general F16J)
F04B1/00:	Multi-cylinder machines or pumps characterised by number or arrangements of cylinders
F04B1/00D:	. Pumps with cylinder axis arranged substantially tangentially to a circle centred on main shaft axis
F04B1/02:	. having two cylinders
F04B1/04:	. having cylinders in star- or fan-arrangement
F04B1/047:	. . with an actuating or actuated element at the outer ends of the cylinders
F04B1/047A:	. . . with cam-actuated distribution members
F04B1/047C:	. . . with two or more series radial piston-cylinder units
F04B1/047C2:	. . . . directly located side-by-side
F04B1/047C4:	. . . . Coupling of several cylinder-barrels
F04B1/04K:	. . Details, component parts specially adapted for such pumps
F04B1/04K10:	. . . Draining of the engine housing; arrangements dealing with leakage fluid
F04B1/04K12:	. . . Sealing, e.g. seals for shafts or housings F04B1/04K2, F04B53/16C2 take precedence
F04B1/04K15:	. . . Particularities relating to the distribution members F04B1/047A, F04B1/053A and F04B1/053C take precedence
F04B1/04K15C:	. . . . to cylindrical distribution members
F04B1/04K15K:	. . . . to conical distribution members
F04B1/04K15V:	. . . . to plate-like distribution members
F04B1/04K2:	. . . Pistons
F04B1/04K3:	. . . Cams
F04B1/04K3B:	. . . . consisting of several cylindrical elements, e.g. rollers
F04B1/04K4:	. . . Cylinders
F04B1/04K5:	. . . Arrangements for pressing or connecting the pistons against the actuated cam
F04B1/04K5B:	. . . . hydraulically
F04B1/04K6:	. . . Disconnecting the pistons from the actuated cam in general F01B31/24
F04B1/04K7:	. . . Supporting and guiding means for the pistons
F04B1/053:	. . with an actuating or actuated element at the inner ends of the cylinders
F04B1/053A:	. . . with cam-actuated distribution members
F04B1/053A2:	. . . . each machine piston being provided with channels which are coacting with the cylinder and are used as a distribution member for another piston-cylinder unit
F04B1/053C:	. . . the piston-driving cam being provided with an inlet and an outlet
F04B1/053E:	. . . with two or more series radial piston-cylinder units
F04B1/053E2:	. . . . directly located side-by-side
F04B1/06:	. . Control F04B49/12, F04B49/18 take precedence
F04B1/06B:	. . . by using a valve in a system with several pumping chambers wherein the flow-path through the chambers can be changed, e.g. series-parallel
F04B1/06K:	. . . by changing the phase relationship between the actuating cam and the distributing means
F04B1/07:	. . . by varying the relative eccentricity between two members, e.g. a cam and a drive shaft
F04B1/08:	. . . regulated by delivery pressure
F04B1/10:	. . the cylinders being movable, e.g. rotary F04B1/20 and F04B3/00B2 take precedence
F04B1/107:	. . . with an actuating or actuated element at the outer ends of the cylinders
F04B1/107A:	. . . . with rotary cylinder block
F04B1/107A2:	. . . . . with cylinder block and actuating cam rotating together F04B1/107A4B and F04B1/107A4D2 take precedence
F04B1/107A4:	. . . . . with two or more series radial piston-cylinder units
F04B1/107A4B:	. . . . . . with cylinder block and actuating cam both rotating F04B1/107A4D2 takes precedence
F04B1/107A4D:	. . . . . . directly located side-by-side
F04B1/107A4D2:	. . . . . . . with cylinder block and actuating cam both rotating
F04B1/113:	. . . with an actuating or actuated element at the inner ends of the cylinders
F04B1/113A:	. . . . with rotary cylinder block
F04B1/113A2:	. . . . . the rotary cylinder being provided with only one piston, reciprocating within the cylinder
F04B1/12:	. having cylinder axes coaxial with, or parallel or inclined to main shaft axis
F04B1/12C:	. . Component parts, details, e.g. valves, sealing, lubrication F04B1/20C takes precedence
F04B1/12C2:	. . . Pistons
F04B1/12C2B:	. . . . Piston shoe retaining means
F04B1/12F:	. . Driving means
F04B1/14:	. . having stationary cylinders
F04B1/14C:	. . . Component parts
F04B1/14C2:	. . . . Cylinders
F04B1/14C5:	. . . . Housings
F04B1/14C7:	. . . . Swash plates or actuating elements
F04B1/14C7B:	. . . . . Swash plate or actuating element bearing means or driving axis bearing means
F04B1/16:	. . . having two or more sets of cylinders or pistons
F04B1/18:	. . . having self-acting distribution members, i.e. actuated by working fluid
F04B1/18A:	. . . . Check valves
F04B1/18C:	. . . . Cylindrical distribution members
F04B1/18K:	. . . . Conical distribution members
F04B1/18V:	. . . . Plate-like distribution members
F04B1/20:	. . having rotary cylinder block
F04B1/20B:	. . . Arrangements for pressing the cylinder barrel against the valve plate, e.g. by fluid pressure
F04B1/20C:	. . . Component parts
F04B1/20C1:	. . . . Particularities in the contacting area between cylinder barrel or valve plate
F04B1/20C1B:	. . . . . Bearing means
F04B1/20C2:	. . . . Cylinder barrel
F04B1/20C3:	. . . . Valve means
F04B1/20C3C:	. . . . . Cylindrical valve means
F04B1/20C3K:	. . . . . Conical valve means
F04B1/20C5:	. . . . Pumphousing
F04B1/20C5B:	. . . . . Cylinder barrel bearing means
F04B1/20C7:	. . . . Swash plate
F04B1/20C7B:	. . . . . Swash plate bearing means or driving axis bearing means
F04B1/20D:	. . . Connection between rotating cylinder barrel and rotating inclined swash plate
F04B1/22:	. . . having two or more sets of cylinders or pistons
F04B1/24:	. . . . inclined to main shaft axis
F04B1/26:	. . Control
F04B1/28:	. . . for machines or pumps with stationary cylinders
F04B1/29:	. . . . by varying the relative positions of a swash plate and a cylinder block
F04B1/29A:	. . . . . by changing the inclination of the swash plate
F04B1/30:	. . . for machines or pumps with rotary cylinder block
F04B1/30A:	. . . . by turning the valve plate
F04B1/30D:	. . . . by turning the swash plate (with fixed inclination)
F04B1/32:	. . . . by varying the relative positions of a swash plate and a cylinder block
F04B1/32B:	. . . . . by moving the swash plate in a direction perpendicular to the axis of rotation of the cylinder barrel
F04B1/32C:	. . . . . by changing the inclination of the swash plate
F04B1/32C3:	. . . . . . using wedges
F04B1/32D:	. . . . . by changing the inclination of the axis of the cylinder barrel relative to the swash plate F04B1/30 takes precedence
F04B1/34:	. Control not provided for in a single group of groups F04B1/02 to F04B1/32
F04B3/00:	Machines or pumps with pistons coacting within one cylinder e.g. multi-stage
F04B3/00B:	. with two or more pistons reciprocating one within another, e.g. one piston forning cylinder of the other
F04B3/00B2:	. . with rotating cylinder block
F04B5/00:	Machines or pumps with differential surface pistons
F04B5/02:	. with double-acting pistons
F04B7/00:	Piston machines or pumps characterised by having positively-driven valving
F04B7/00A:	. the distribution member forming both the inlet and discharge distributor for one single pumping chamber F04B7/02A takes precedence
F04B7/00A2:	. . and having a rotating movement
F04B7/00A4:	. . and having an oscillating movement
F04B7/00A6:	. . and having a slidable movement
F04B7/00C:	. a common distribution member forming a single discharge distributor for a plurality of pumping chambers F04B7/02C takes precedence
F04B7/00C2:	. . and having a rotating movement
F04B7/00C4:	. . and having an oscillating movement
F04B7/00C6:	. . and having a slidable movement
F04B7/00C8:	. . and having an orbital movement, e.g. elbow-pipe type members
F04B7/00E:	. the distribution member forming a single inlet for a plurality of pumping chambers or a multiple discharge for one single pumping chamber
F04B7/00G:	. with specific kinematics of the distribution member F04B7/00A, F04B7/00C take precedence
F04B7/00G2:	. . for rotating distribution members
F04B7/00G4:	. . for oscillating distribution members
F04B7/00G6:	. . for reciprocating distribution members
F04B7/00K:	. Mechanical driving means therefor, e.g. cams
F04B7/00K2:	. . for a rotating member
F04B7/00K2A:	. . . being mounted on the main shaft
F04B7/00K4:	. . for a sliding member
F04B7/00L:	. the member being of the lost-motion type, e.g. friction-actuated members, or having means for pushing it against or pulling it from its seat
F04B7/00M:	. the members being actuated by electro-magnetic means
F04B7/00P:	. the distribution being realised by moving the cylinder itself, e.g. by sliding or swinging F04B7/02P takes precedence
F04B7/00T:	. Component parts or details specially adapted therefor
F04B7/00T2:	. . Sealing arrangements between the distribution members and the housing
F04B7/00T2B:	. . . for oscillating distribution members
F04B7/00T2D:	. . . for pipe-type distribution members
F04B7/02:	. the valving being fluid-actuated
F04B7/02A:	. . the distribution member forming both the inlet and discharge distributor for one single pumping chamber
F04B7/02A4:	. . . and having an oscillating movement
F04B7/02A6:	. . . and having a slidable movement
F04B7/02C:	. . a common distribution member forming a single discharge distributor for a plurality of pumping chambers
F04B7/02C4:	. . . and having an oscillating movement
F04B7/02C6:	. . . and having a slidable movement
F04B7/02C8:	. . . and having an orbital movement, e.g. elbow-pipe type members
F04B7/02F:	. . the inlet and discharge means being separate members
F04B7/02F2:	. . . and being deformable, e.g. membranes
F04B7/02F4:	. . . and having a rotating movement
F04B7/02P:	. . the distribution being realised by moving the cylinder itself, e.g. by sliding or swinging
F04B7/04:	. in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
F04B7/04B:	. . Two pistons coacting within one cylinder
F04B7/06:	. . the pistons and cylinders being relatively reciprocated and rotated
F04B9/00:	Piston machines or pumps characterised by the driving or driven means to or from their working members
F04B9/02:	. the means being mechanical
F04B9/02D:	. . Driving of pistons coacting within one cylinder
F04B9/04:	. . the means being cams, eccentrics, or pin-and-slot mechanisms
F04B9/04C:	. . . the means being cams
F04B9/04E:	. . . the means being eccentrics
F04B9/04P:	. . . the means being pin-and-slot mechanisms
F04B9/06:	. . the means including spring- or weight-loaded lost-motion devices
F04B9/08:	. the means being fluid
F04B9/10:	. . the fluid being liquid
F04B9/103:	. . . having only one pumping chamber
F04B9/103A:	. . . . the movement of the pump piston in the two directions being obtained by two single-acting liquid motors each acting in one direction
F04B9/105:	. . . . reciprocating movement of the pumping member being obtained by a double-acting liquid motor
F04B9/105A:	. . . . . one side of the double-acting liquid motor being always under the influence of the liquid under pressure
F04B9/105C:	. . . . . with fluid-actuated inlet or outlet valve mechanically controlled F04B7/00
F04B9/107:	. . . . rectilinear movement of the pumping member in the working direction being obtained by a single-acting liquid motor, e.g. actuated in the other direction by gravity or a spring
F04B9/107A:	. . . . . with actuation in the other direction by gravity
F04B9/107C:	. . . . . with fluid-actuated inlet or outlet valve mechanically controlled F04B7/00
F04B9/109:	. . . having plural pumping chambers
F04B9/109A:	. . . . having two or more pumping chambers in series
F04B9/111:	. . . . with two mechanically connected pumping members
F04B9/111A:	. . . . . the movement of the pumping pistons in only one direction being obtained by a single-acting piston liquid motor, e.g. actuation in the other direction by spring means
F04B9/113:	. . . . . reciprocating movement of the pumping members being obtained by a double-acting liquid motor
F04B9/115:	. . . . . reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
F04B9/117:	. . . . the pumping members not being mechanically connected to each other
F04B9/117A:	. . . . . the movement of each pump piston in the two directions being obtained by a double-acting piston liquid motor
F04B9/117A2:	. . . . . . with fluid-actuated inlet or outlet valve mechanically controlled F04B7/00
F04B9/117C:	. . . . . the movement of each piston in one direction being obtained by a single-acting piston liquid motor
F04B9/117C2:	. . . . . . the movement in the other direction being obtained by a hydraulic connection between the liquid motor cylinders
F04B9/12:	. . the fluid being elastic, e.g. steam or air
F04B9/123:	. . . having only one pumping chamber
F04B9/123A:	. . . . the movement of the pump piston in the two directions being obtained by two single-acting piston fluid motors, each acting in one direction
F04B9/125:	. . . . reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor
F04B9/125A:	. . . . . one side of the double-acting piston fluid motor being always under the influence of the fluid under pressure
F04B9/125C:	. . . . . with fluid-actuated inlet or outlet valve mechanically controlled F04B7/00
F04B9/127:	. . . . rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring
F04B9/127A:	. . . . . with actuation in the other direction by gravity
F04B9/127C:	. . . . . with fluid-actuated inlet or outlet valve mechanically controlled F04B7/00
F04B9/129:	. . . having plural pumping chambers
F04B9/129A:	. . . . having two or more pumping chambers in series
F04B9/12V:	. . . using a source of partial vacuum or sub-atmospheric pressure
F04B9/12V4:	. . . . the return stroke being obtained by a spring
F04B9/12V5:	. . . . the return stroke being obtained by an elastic fluid under pressure
F04B9/131:	. . . . with two mechanically connected pumping members
F04B9/131A:	. . . . . the movement of the pumping pistons in only one direction being obtained by a single-acting piston fluid motor, e.g. actuation in the other direction by spring means
F04B9/133:	. . . . . reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid motor
F04B9/135:	. . . . . reciprocating movement of the pumping members being obtained by two single-acting elastic-fluid motors, each acting in one direction
F04B9/137:	. . . . the pumping members not being mechanically connected to each other
F04B9/137A:	. . . . . the movement of each pump piston in the two directions is obtained by a double-acting piston fluid motor
F04B9/137A2:	. . . . . . with fluid-actuated inlet or outlet valve mechanically controlled F04B7/00
F04B9/137C:	. . . . . the movement of each piston in one direction being obtained by a single-acting piston fluid motor
F04B9/137C2:	. . . . . . the movement in the other direction being obtained by an hydraulic connection between the fluid motor cylinders
F04B9/14:	. Pumps characterised by muscle-power operation hand-held spraying or dispensing apparatus using pumps or bulbs B05B11/00
F04B11/00:	Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
F04B11/00A:	. using accumulators
F04B11/00A2:	. . with a fluid spring
F04B11/00A2C:	. . . the spring fluid being in direct contact with the pumped fluid
F04B11/00A4:	. . with a mechanical spring
F04B11/00C:	. by piston speed control F04B11/00P2 takes precedence
F04B11/00P:	. using two or more pumping pistons
F04B11/00P2:	. . with piston speed control
F04B11/00P2C:	. . . with special shape of the actuating element
F04B11/00P4:	. . connected in series
F04B11/00P4D:	. . . the pistons having different cross-sections
F04B11/00R:	. using a special shape of fluid pass, e.g. throttles, ducts
F04B13/00:	Pumps specially modified to deliver fixed or variable measured quantities
F04B13/02:	. of two or more fluids at the same time
F04B15/00:	Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
F04B15/02:	. the fluids being viscous or non-homogeneous
F04B15/02B:	. . supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
F04B15/04:	. the fluids being hot or corrosive
F04B15/06:	. for liquids near their boiling point, e.g. under subnormal pressure
F04B15/08:	. . the liquids having low boiling points
F04B17/00:	Pumps characterised by combination with, or adaptation to, specific driving engines or motors
F04B17/00P:	. driven by piezo-electric means F04B43/04M2 and F04B43/09P take precedence
F04B17/00S:	. Solar operated
F04B17/02:	. driven by wind motors
F04B17/03:	. driven by electric motors
F04B17/04:	. . using solenoids
F04B17/04B:	. . . the solenoid motor being separated from the fluid flow
F04B17/04B2:	. . . . using solenoids directly actuating the piston
F04B17/04D:	. . . the fluid flowing through the moving part of the motor
F04B17/04F:	. . . the fluid flowing around the moving part of the motor
F04B17/05:	. driven by internal-combustion engines
F04B17/06:	. Mobile combinations
F04B19/00:	Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 to F04B17/00
F04B19/00F:	. free-piston type pumps
F04B19/00M:	. Micro pumps F04B43/04M and F04B43/09P take precedence
F04B19/02:	. having movable cylinders
F04B19/02H:	. . reciprocating cylinders
F04B19/02R:	. . cylinders rotating around their own axis
F04B19/02S:	. . cylinders oscillating around an axis perpendicular to their own axis
F04B19/04:	. Pumps for special use
F04B19/06:	. . Pumps for delivery of both liquid and elastic fluid at the same time
F04B19/08:	. Scoop devices
F04B19/10:	. . of wheel type
F04B19/12:	. . of helical or screw-type
F04B19/14:	. . of endless-chain type, e.g. with the chains carrying pistons co-operating with open-ended cylinders
F04B19/16:	. Adhesion-type liquid-lifting devices
F04B19/18:	. . Adhesion members therefor
F04B19/20:	. Other positive-displacement pumps
F04B19/22:	. . of reciprocating-piston type
F04B19/24:	. . Pumping by heat expansion of pumped fluid
F04B23/00:	Pumping installations or systems
F04B23/02:	. having reservoirs
F04B23/02B:	. . the pump being immersed in the reservoir
F04B23/02B2:	. . . only the pump-part being immersed, the driving-part being outside the reservoir
F04B23/02C:	. . the pump being located directly adjacent the reservoir
F04B23/02C2:	. . . a pump-side forming a wall of the reservoir
F04B23/02C4:	. . . the pump being mounted on top of the reservoir
F04B23/04:	. Combinations of two or more pumps
F04B23/06:	. . the pumps being all of reciprocating positive-displacement type
F04B23/08:	. . the pumps being of different types
F04B23/10:	. . . at least one pump being of the reciprocating positive-displacement type
F04B23/10B:	. . . . being a radial piston pump
F04B23/10D:	. . . . being an axial piston pump
F04B23/12:	. . . at least one pump being of the rotary-piston positive-displacement type
F04B23/14:	. . . at least one pump being of the non-positive-displacement type
F04B25/00:	Multi-stage pumps
F04B25/00P:	. with two cylinders
F04B25/02:	. of stepped piston type
F04B25/04:	. having cylinders coaxial with, or parallel or inclined to, main shaft axis
F04B27/00:	Multi-cylinder pumps characterised by number or arrangement of cylinders
F04B27/00P:	. with two cylinders
F04B27/02:	. having cylinders arranged oppositely relative to main shaft
F04B27/04:	. having cylinders in star- or fan-arrangement
F04B27/047:	. . with an actuating element at the outer ends of the cylinders
F04B27/047A:	. . . with cam-actuated distribution members
F04B27/047C:	. . . with two or more series radial piston-cylinder units
F04B27/047C2:	. . . . directly located side-by-side
F04B27/047C4:	. . . . Coupling of several cylinder-barrels
F04B27/04K:	. . Details, component parts specially adapted for such pumps
F04B27/04K10:	. . . Draining of the engine housing; Arrangements dealing with leakage fluid
F04B27/04K15:	. . . Particularities relating to the distribution members F04B27/047A, F04B27/053A and F04B27/053C take precedence
F04B27/04K15C:	. . . . to cylindrical distribution members
F04B27/04K15K:	. . . . to conical distribution members
F04B27/04K15V:	. . . . to plate like distribution members
F04B27/04K2:	. . . Pistons
F04B27/04K3:	. . . Cams
F04B27/04K3B:	. . . . consisting of several cylindrical elements, e.g. rollers
F04B27/04K4:	. . . Cylinders
F04B27/04K5:	. . . Arrangements for pressing or connecting the pistons against the actuated cam
F04B27/04K5B:	. . . . hydraulically
F04B27/04K6:	. . . Disconnecting the pistons from the actuated cam in general F01B31/24
F04B27/04K7:	. . . Supporting and guiding means for the pistons
F04B27/053:	. . with an actuating element at the inner ends of the cylinders
F04B27/053A:	. . . with cam-actuated distribution members
F04B27/053A2:	. . . . each machine piston being provided with channels, which are coacting with the cylinder and are used as a distribution member for another piston-cylinder unit
F04B27/053C:	. . . the piston-driving cam being provided with an inlet or an outlet
F04B27/053E:	. . . with two or more series radial piston-cylinder units
F04B27/053E2:	. . . . directly located side-by-side
F04B27/06:	. . the cylinders being movable, e.g. rotary F04B27/08 takes precedence
F04B27/067:	. . Control
F04B27/067B:	. . . by using a valve in a system with several pumping chambers, wherein the flow-path through the chambers can be changed, e.g. series-parallel
F04B27/067K:	. . . by changing the phase relationship between the actuating cam and the distribution means
F04B27/06A:	. . . having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the outer ends of the cylinders
F04B27/06A2:	. . . . rotary cylinder block
F04B27/06A2A:	. . . . . cylinder block and actuating cam rotating together F04B27/06A2B2 and F04B27/06A2B3A take precedence
F04B27/06A2B:	. . . . . with two or more series radial piston cylinder units
F04B27/06A2B2:	. . . . . . cylinder block and actuating cam both rotating F04B27/06A2B3A takes precedence
F04B27/06A2B3:	. . . . . . directly located side by side
F04B27/06A2B3A:	. . . . . . . cylinder block and actuating cam both rotating
F04B27/06B:	. . . having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the inner ends of the cylinders
F04B27/06B2:	. . . . rotary cylinder block
F04B27/06B2D:	. . . . . the rotary cylinder being provided with only one piston, reciprocating within this cylinder
F04B27/073:	. . . by varying the relative eccentricity between two members, e.g. a cam and a drive shaft
F04B27/08:	. having cylinders coaxial with, or parallel or inclined to, main shaft axis
F04B27/08B:	. . having rotary cylinder block see F01B3/00B, F03C1/06E, F03C1/20
F04B27/08B2:	. . . having two or more sets of cylinders or pistons
F04B27/08B2B:	. . . . inclined to main shaft axis
F04B27/08B3:	. . . arrangements for pressing the cylinder barrel against the valve plate e.g. by fluid pressure
F04B27/08B4:	. . . component parts, details, e.g. valves, sealings, lubrication
F04B27/08B4B:	. . . . particularities in the contacting area between cylinder barrel and valve plate
F04B27/08B4B2:	. . . . . bearing means
F04B27/08B4C:	. . . . cylinder barrel
F04B27/08B4D:	. . . . valve means, e.g. valve plate
F04B27/08B4D3:	. . . . . cylindrical valve means
F04B27/08B4D5:	. . . . . conical valve means
F04B27/08B4F:	. . . . machine housing
F04B27/08B4F2:	. . . . . cylinder barrel bearing means
F04B27/08B4G:	. . . . swash plate
F04B27/08B4G2:	. . . . . swash plate bearing means or driving axis bearing means
F04B27/08B6:	. . . connection between rotating cylinder barrel and rotating inclined swash plate
F04B27/08D:	. . Component parts, e.g. sealings; Manufacturing or assembly thereof
F04B27/08D3:	. . . Pistons
F04B27/08D3R:	. . . . piston shoe retaining means
F04B27/08D3S:	. . . . Piston shoes
F04B27/08D5:	. . . casings, housings
F04B27/08D7:	. . . driving means
F04B27/10:	. . having stationary cylinders
F04B27/10A:	. . . Distribution members
F04B27/10A2:	. . . . Cylindrical distribution members
F04B27/10A4:	. . . . Conical distribution members
F04B27/10C:	. . . Component parts, details, e.g. sealings, lubrication
F04B27/10C2:	. . . . Cylinders
F04B27/10C4:	. . . . Actuating elements
F04B27/10C4A:	. . . . . Actuating-element bearing means or driving-axis bearing means
F04B27/10C4P:	. . . . . Pivot mechanisms
F04B27/10C6:	. . . . Casings, housings
F04B27/10C8:	. . . . Lubrication
F04B27/12:	. . . having plural sets of cylinders or pistons
F04B27/14:	. . Control
F04B27/16:	. . . of pumps with stationary cylinders
F04B27/18:	. . . . by varying the relative positions of a swash plate and a cylinder block
F04B27/18B:	. . . . . Controlled by crankcase pressure
F04B27/20:	. . . of pumps with rotary cylinder block
F04B27/22:	. . . . by varying the relative positions of a swash plate and a cylinder block
F04B27/24:	. Control not provided for in a single group of groups F04B27/02 to F04B27/22
F04B29/00:	Other pumps with movable, e.g. rotatable cylinders
F04B31/00:	Free-piston pumps; Systems incorporating such pumps
F04B33/00:	Pumps actuated by muscle power, e.g. for inflating
F04B33/00D:	. specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles
F04B33/02:	. with intermediate gearing
F04B35/00:	Piston pumps characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for (predominant aspects of the engines or motors, see the relevant classes)
F04B35/00C:	. driven by internal combustion engines
F04B35/00F:	. driven by floating elements
F04B35/00S:	. driven by steam engines
F04B35/00T:	. the means being a fluid transmission link
F04B35/01:	. the means being mechanical
F04B35/04:	. the means being electric
F04B35/04S:	. . using solenoids
F04B35/06:	. Mobile combinations
F04B37/00:	Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 to F04B35/00
F04B37/02:	. for evacuating by absorption or adsorption
F04B37/04:	. . Selection of specific absorption or adsorption materials
F04B37/06:	. for evacuating by thermal means
F04B37/08:	. . by condensing or freezing, e.g. cryogenic pumps
F04B37/08R:	. . . Regeneration of cyro-pumps
F04B37/10:	. for special use
F04B37/12:	. . to obtain high pressure
F04B37/14:	. . to obtain high vacuum
F04B37/16:	. . . Means for nullifying unswept space
F04B37/18:	. . for specific elastic fluid
F04B37/20:	. . . for wet gases, e.g. wet air
F04B39/00:	Component parts, details, or accessories, of pumps or pumping systems, not otherwise provided for in, or of interest apart from, groups F04B25/00 to F04B37/00
F04B39/00B:	. adaptations of pistons
F04B39/00B2:	. . liquid pistons
F04B39/00B4:	. . with valve arranged in the piston
F04B39/00B6:	. . piston rods
F04B39/00D:	. Pulsation and noise damping means
F04B39/00D12:	. . by generating oil foam
F04B39/00D14:	. . using blow off silencers
F04B39/00D16:	. . using mechanical tuned resonators
F04B39/00D2:	. . with encapsulations
F04B39/00D2B:	. . . of inlet or outlet channels
F04B39/00D4:	. . with vibration damping supports
F04B39/00D6:	. . with direct action on the fluid flow using absorptive materials
F04B39/00D8:	. . with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
F04B39/00D8A:	. . . using muffler volumes
F04B39/00D8H:	. . . using sidebranch resonators, e.g. Helmholtz resonators
F04B39/00D8M:	. . . characterised by assembly or mounting
F04B39/00K:	. crankshaft
F04B39/02:	. Lubrication
F04B39/02C:	. . with lubrication control systems
F04B39/02M:	. . characterised by the use of a special lubricant
F04B39/02T:	. . characterised by the compressor type swash-plate compressors F04B27/10C8
F04B39/02T1:	. . . Hermetic compressors
F04B39/02T1D:	. . . . with oil distribution channels
F04B39/02T1D1:	. . . . . in the rotating shaft
F04B39/02T1D1C:	. . . . . . using centrifugal force for transporting the oil
F04B39/02T1P:	. . . . with an auxiliary oil pump
F04B39/02T1S:	. . . . with device for spraying lubricant or with mist lubrication
F04B39/02T5:	. . . the pump being of the reciprocating piston type, e.g. oscillating, free-piston compressors
F04B39/02V:	. . Constructional details, e.g. reservoirs in the casing swash-plate compressors F04B27/08D3, F04B27/10C8
F04B39/02V5:	. . . Lubrication of pistons or cylinders
F04B39/04:	. Measures to avoid lubricant contaminating the pumped fluid
F04B39/04B:	. . sealing for a reciprocating rod sealing in general F16J
F04B39/04B10:	. . . Sealing between piston and carter being provided by a diaphragm
F04B39/04B2:	. . . sealing being provided on the piston
F04B39/04B4:	. . . sealing with a rolling diaphragm between piston and cylinder
F04B39/04B6:	. . . Labyrinth-sealing between piston and cylinder
F04B39/04B8:	. . . Sealing between piston and carter being provided by a bellow
F04B39/06:	. Cooling ; Heating; Prevention of freezing
F04B39/06B:	. . Cooling by injecting a liquid in the gas to be compressed
F04B39/06C:	. . Cooling by a cooling jacket in the pump casing
F04B39/06D:	. . Cooling by ventilation
F04B39/06P:	. . prevention of freezing
F04B39/08:	. Actuation of distribution members
F04B39/10:	. Adaptations or arrangements of distribution members
F04B39/10B:	. . the members being ball valves
F04B39/10C:	. . the members being of the poppet valve type
F04B39/10D:	. . the members being disc valves
F04B39/10D2:	. . . without spring F04B39/10D3 takes precedence
F04B39/10D3:	. . . annular disc valves
F04B39/10F:	. . the members being parallel flexible strips
F04B39/10G:	. . Combination of in- and outlet valve
F04B39/10H:	. . the members being Hoerbigen valves
F04B39/10N:	. . the members being parallel non-flexible strips
F04B39/10P:	. . Valve plates
F04B39/10R:	. . the members being reed valves
F04B39/10R2:	. . . circular reed valves
F04B39/10R3:	. . . flat annular reed valves
F04B39/10W:	. . the members being low-resistance valves allowing free streaming
F04B39/12:	. Casings ; Cylinders; Cylinders heads; Fluid connections
F04B39/12C:	. . Casings
F04B39/12D:	. . Cylinder block
F04B39/12F:	. . Fluid connections
F04B39/12H:	. . Cylinder heads
F04B39/12L:	. . Cylinder liners
F04B39/12M:	. . Mounting of a cylinder block in a casing
F04B39/12V:	. . Crankcases
F04B39/14:	. Provisions for readily assembling or disassembling
F04B39/16:	. Filtration; Moisture separation
F04B41/00:	Pumping installations or systems
F04B41/02:	. having reservoirs
F04B41/04:	. Conversion of internal-combustion engine cylinder units to pumps
F04B41/06:	. Combinations of two or more pumps
F04B43/00:	Machines, pumps, or pumping installations having flexible working members
F04B43/00D:	. Special features
F04B43/00D2:	. . the periphery of the flexible member being not fixed to the pump-casing, but acting as a valve
F04B43/00D3:	. . without valves
F04B43/00D5:	. . the flexible member being formed as an O-ring
F04B43/00D7:	. . with a number of independent working chambers which are actuated successively by one mechanism
F04B43/00D8:	. . particularities of the flexible members
F04B43/00D8B:	. . . bell-shaped flexible members
F04B43/00D8T:	. . . of tubular flexible members
F04B43/00D9:	. . systems, control, safety measures
F04B43/00D9B:	. . . leakage control; pump systems with two flexible members; between the actuating element and the pumped fluid
F04B43/02:	. having plate-like flexible members, e.g. diaphragms
F04B43/02B:	. . the plate-like flexible member is pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the plane of the plate-like flexible member and each having its own driving mechanism
F04B43/02D:	. . double acting plate-like flexible member
F04B43/02P:	. . two or more plate-like pumping members in parallel
F04B43/02P3:	. . . each plate-like pumping flexible member working in its own pumping chamber
F04B43/02V:	. . with in- or outlet valve arranged in the plate-like flexible member valve arranged in the piston F04B53/12
F04B43/04:	. . Pumps having electric drive
F04B43/04M:	. . . Micro pumps
F04B43/04M2:	. . . . with piezo-electric drive
F04B43/06:	. . Pumps having fluid drive
F04B43/067:	. . . the fluid being actuated directly by a piston
F04B43/073:	. . . the actuating fluid being controlled by at least one valve
F04B43/073A:	. . . . with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series
F04B43/073C:	. . . . with two or more pumping chambers in parallel
F04B43/08:	. having tubular flexible members
F04B43/08B:	. . the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
F04B43/08D:	. . the tubular member being deformed by stretching ou distersion
F04B43/08P:	. . with two or more tubular flexible members in parallel F04B43/113C takes precedence
F04B43/08S:	. . with two or more tubular flexible members in series F04B43/113A takes precedence
F04B43/09:	. . Pumps having electric drive
F04B43/09P:	. . . Piezo-electric drive
F04B43/10:	. . Pumps having fluid drive
F04B43/107:	. . . the fluid being actuated directly by a piston
F04B43/113:	. . . the actuating fluid being controlled by at least one valve
F04B43/113A:	. . . . with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series
F04B43/113C:	. . . . with two or more pumping chambers in parallel
F04B43/12:	. having peristaltic action
F04B43/12B:	. . the actuating element being a swash plate
F04B43/12C:	. . having no backing plate (deforming of the tube only by rollers)
F04B43/12D:	. . the actuating elements, e.g. rollers, moving in a straight line during squeezing
F04B43/12E:	. . using an excenter as the squeezing element
F04B43/12F:	. . using only one roller as the squeezing element, the roller moving on an arc of a circle during squeezing
F04B43/12F2:	. . . the roller being placed at the outside of the tubular flexible member
F04B43/12G:	. . by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
F04B43/12G10:	. . . Pumps specially adapted for several tubular flexible members
F04B43/12G2:	. . . the rollers being placed at the outside of the tubular flexible member
F04B43/12G4:	. . . the rotary axes of the rollers lying in a plane perpendicular to the rotary axis of the driving motor
F04B43/12G6:	. . . Means for pushing the rollers against the tubular flexible member
F04B43/12G8:	. . . Means for pushing the backing-plate against the tubular flexible member
F04B43/14:	. . having plate-like flexible members
F04B45/00:	Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
F04B45/02:	. having bellows
F04B45/027:	. . having electric drive
F04B45/02P:	. . with two or more bellows in parallel
F04B45/02S:	. . with two or more bellows in series
F04B45/033:	. . having fluid drive
F04B45/033A:	. . . the fluid being actuated directly by a piston
F04B45/033C:	. . . the actuating fluid being controlled by one or more valves
F04B45/04:	. having plate-like flexible members, e.g. diaphragms
F04B45/047:	. . Pumps having electric drive
F04B45/04D:	. . double acting plate-like flexible pumping member
F04B45/04P:	. . two or more plate-like pumping flexible members in parallel
F04B45/04V:	. . with in- or outlet valve arranged in the plate-like pumping flexible members
F04B45/053:	. . Pumps having fluid drive
F04B45/053A:	. . . the fluid being actuated directly by a piston
F04B45/053C:	. . . the actuating fluid being controlled by one or more valves
F04B45/06:	. having tubular flexible members
F04B45/067:	. . Pumps having electric drive
F04B45/06F:	. . with fluid drive
F04B45/06F3:	. . . the fluid being actuated directly by a piston
F04B45/06F4:	. . . the actuating fluid being controlled by one or more valves
F04B45/06G:	. . with electric drive
F04B45/073:	. . Pumps having fluid drive
F04B45/073A:	. . . the fluid being actuated directly by a piston
F04B45/073C:	. . . the actuating fluid being controlled by one or more valves
F04B45/08:	. . having peristaltic action
F04B45/08B:	. . . the actuating element being a swash plate
F04B45/10:	. . having plate-like flexible members
F04B47/00:	Pumps or pumping installation specially adapted for raising fluids from great depths, e.g. well pumps
F04B47/00K:	. Sand trap arrangements
F04B47/02:	. the driving mechanisms being situated at ground level
F04B47/02D:	. . driving of the walking beam
F04B47/02M:	. . actuated by muscle power
F04B47/02P:	. . Pull rods, full rod component parts
F04B47/02W:	. . details of the walking beam
F04B47/04:	. . the driving means incorporating fluid means
F04B47/06:	. having motor-pump units situated at great depth
F04B47/08:	. . the motor being actuated by fluid
F04B47/10:	. . . the units or parts thereof being liftable to ground level by fluid pressure
F04B47/12:	. having free plunger lifting the fluid to the surface
F04B47/14:	. Counterbalancing
F04B47/14F:	. . with fluid means
F04B49/00:	Control e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 to F04B47/00
F04B49/00A:	. Hydraulic systems to change the pump delivery
F04B49/00F:	. changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member
F04B49/00H:	. Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel centrifugal pumps F04D15/00H
F04B49/02:	. Stopping, starting, unloading or idling control
F04B49/025:	. . by means of floats
F04B49/02C:	. . by means of pressure
F04B49/03:	. . by means of valves
F04B49/035:	. . . Bypassing
F04B49/04:	. Regulating by means of floats
F04B49/06:	. Control using electricity
F04B49/06C:	. . and making use of computers
F04B49/08:	. Regulating by delivery pressure
F04B49/10:	. Other safety measures
F04B49/10S:	. . Responsive to speed
F04B49/10V:	. . Responsive to pumped volume
F04B49/12:	. by varying the length of stroke of the working members
F04B49/12A:	. . Lost-motion device in the driving mechanism
F04B49/12C:	. . by changing the eccentricity of one element relative to another element
F04B49/12C2:	. . . by changing the eccentricity ot the actuation means, e.g. cams or cranks, relative to the driving means, e.g. driving shafts F04B49/12C4 takes precedence
F04B49/12C2B:	. . . . with a double eccenter mechanism
F04B49/12C4:	. . . by changing the eccentricity of the cylinders, e.g. by moving a cylinder block
F04B49/14:	. . Adjusting abutments located in the path of reciprocation
F04B49/16:	. by adjusting the capacity of dead spaces of working chambers
F04B49/18:	. by changing the effective cross-section of the working surface of the piston
F04B49/20:	. by changing the driving speed
F04B49/22:	. by means of valves
F04B49/22A:	. . with throttling valves or valves varying the pump inlet opening or the outlet opening
F04B49/24:	. . Bypassing
F04B49/24B:	. . . by keeping open the inlet valve
F04B49/24C:	. . . by keeping open the outlet valve
F04B51/00:	Testing machines, pumps, or pumping installations
F04B53/00:	Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 to F04B23/00 or F04B39/00 to F04B47/00
F04B53/00D:	. Noise damping
F04B53/00D2:	. . by encapsulation
F04B53/00D4:	. . by damping supports
F04B53/00D6:	. . by mechanical resonators
F04B53/00F:	. Adaptations or arrangements of valves used as foot valves, of suction strainers, or of mud-boxes
F04B53/00K:	. Crankshafts
F04B53/00P:	. Cylinder heads
F04B53/00S:	. Spacing or clearance between cylinder and piston
F04B53/02:	. Packing the free space between cylinders and pistons
F04B53/04:	. Draining
F04B53/06:	. Venting
F04B53/08:	. Cooling ; Heating; Preventing freezing
F04B53/10:	. Valves; Arrangement of valves
F04B53/10B:	. . Ball valves
F04B53/10B12:	. . . Combinations of ball valves working in parallel
F04B53/10B14:	. . . Semi-spherical ball valves
F04B53/10B4:	. . . being formed by two closure members working in series
F04B53/10B6:	. . . having means for guiding the closure member
F04B53/10B8:	. . . having means for limiting the opening height
F04B53/10B8B:	. . . . and means for controlling the opening height
F04B53/10D:	. . Disc valves
F04B53/10D10:	. . . with means for limiting the opening height
F04B53/10D4:	. . . having means for guiding the closure member axially
F04B53/10D4B:	. . . . the guiding means being provided within the valve opening
F04B53/10D4D:	. . . . the guiding means being provided at both sides of the disc
F04B53/10D6:	. . . Flat-annular type disc valves
F04B53/10D8:	. . . Spring-actuated disc valves F04B53/10D4, F04B53/10D6 take precedence
F04B53/10F:	. . Flap valves
F04B53/10F2:	. . . the closure member being a rigid element oscillating around a fixed point
F04B53/10F2B:	. . . . by means of a flexible connection
F04B53/10F2D:	. . . . the valve being formed by two elements
F04B53/10F4:	. . . the valve being formed by one or more flexible elements
F04B53/10F4B:	. . . . one flexible element oscillating around a fixed point
F04B53/10F4C:	. . . . two flexible elements oscillating around a fixed point
F04B53/10F4D:	. . . . more than two flexible elements oscillating around a fixed point
F04B53/10F4E:	. . . . the valve being a tube, e.g. normally closed at one end
F04B53/10F4F:	. . . . the valve being a membrane
F04B53/10F4F2:	. . . . . fixed at two or more points at its periphery
F04B53/10F4F4:	. . . . . fixed at its centre
F04B53/10F4F6:	. . . . . fixed at its whole periphery and with an opening at its centre
F04B53/10F4F6A:	. . . . . . the opening normally being closed by a fixed element
F04B53/10G:	. . the valve being an elastic body, the length thereof changing in the opening direction
F04B53/10H:	. . the valve being a flexible annular ring
F04B53/10K:	. . Flow resistance valves, e.g. without moving parts
F04B53/10M:	. . Valves characterised by the material
F04B53/10M2:	. . . magnetic
F04B53/10P:	. . having means for limiting the opening height F04B53/10B8 and F04B53/10D10 take precedence
F04B53/10S:	. . Valve seats
F04B53/10T:	. . inlet and outlet valve forming one unit
F04B53/10T2:	. . . and one single element forming both the inlet and outlet closure member
F04B53/10W:	. . Valves linked to another valve of another pumping chamber
F04B53/10Z:	. . with means for lifting the closure member for pump cleaning purposes
F04B53/12:	. . arranged in or on pistons
F04B53/12A:	. . . the valve being an annular ring surrounding the piston, e.g. an O-ring
F04B53/12C:	. . . the piston being free-floating, e.g. the valve being formed between the actuating rod and the piston
F04B53/12F:	. . . Flexible valves
F04B53/12H:	. . . Oscillating valves
F04B53/12R:	. . . Reciprocating valves
F04B53/12R2:	. . . . Ball valves
F04B53/12R4:	. . . . Disc valves
F04B53/12R4A:	. . . . . Annular disc valves
F04B53/12R6:	. . . . Poppet valves
F04B53/14:	. Pistons, piston-rods or piston-rod connections
F04B53/14B:	. . Intermediate liquid piston between the driving piston and the pumped liquid F04B43/06 and F04B43/10 take precedence
F04B53/14C:	. . Intermediate liquid-piston between a driving piston and a driven piston F04B9/10, F04B43/06, F04B43/10 and F04B53/14B take precedence
F04B53/14P:	. . Sealing provided on the piston
F04B53/14R:	. . Adaptation of piston-rods
F04B53/14R4:	. . . Rod shock absorber
F04B53/14R5:	. . . Piston-rod guiding arrangements
F04B53/14R7:	. . . Mounting or detaching of piston rod
F04B53/14V:	. . the piston being provided with channels which are coacting with the cylinder and are used as a distribution member for another piston-cylinder unit
F04B53/16:	. Casings; Cylinders; Cylinder liners or heads; Fluid connections
F04B53/16C:	. . Adaptations of cylinders
F04B53/16C2:	. . . Stoffing boxes
F04B53/16C4:	. . . Cylinder liners
F04B53/16C4A:	. . . . Mounting of cylinder liners in cylinders
F04B53/18:	. Lubricating
F04B53/20:	. Filtering
F04B53/22:	. Arrangements for enabling ready assembly or disassembly