F:	MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
F24:	HEATING; RANGES; VENTILATING
F24J:	PRODUCING OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
F24J1/00:	Apparatus or devices using heat produced by exothermal chemical reactions other than by combustion
F24J2/00:	Use of solar heat, e.g. solar heat collectors
F24J2/00A:	. Passive solar heat collectors
F24J2/00B:	. Solar heat collectors absorbing essentially direct solar radiation combined with a solar heat collector absorbing concentrated radiation
F24J2/00E:	. Solar heat collector using additional ambient air heat or another heat source, e.g. electrical
F24J2/02:	. Solar heat collectors with support for article heated, e.g. stoves, ranges, crucibles, furnaces or ovens using solar heat
F24J2/04:	. Solar heat collectors having working fluid conveyed through collector
F24J2/04B:	. . [N: Solar collectors integrated in fixed constructions, e.g. in buildings]
F24J2/04B10:	. . . in the form of a façade construction
F24J2/04B12:	. . . in the form of a roof construction F24J2/04B14 takes precedence
F24J2/04B14:	. . . in the form of shingles or tiles
F24J2/04B16:	. . . using pools or pounds
F24J2/04B16B:	. . . . Salt gradient solar ponds
F24J2/04B16C:	. . . . Floating solar collectors or covers
F24J2/04B20:	. . . having more than one heat-exchange circuit
F24J2/04B22:	. . . having two or more passages for the heat-exchange medium (F24J2/04B24B takes precedence)
F24J2/04B24:	. . . Solar heat collectors having absorber surfaces of a particular form
F24J2/04B24B:	. . . . having two or more absorber surfaces
F24J2/04B4:	. . . [N: in the form of a fence, a balustrade or a handrail]
F24J2/04B6:	. . . in the form of a window
F24J2/04B8:	. . . in the form of a floor construction
F24J2/04C:	. . [N: using pools or ponds]
F24J2/04C2:	. . . [N: Salt gradient solar ponds]
F24J2/04C4:	. . . [N: Floating solar collectors or covers]
F24J2/04D:	. . [N: having circuits for more than one working fluid (F24J2/30 takes precedence)]
F24J2/04E:	. . [N: having two or more passages for the same working fluid (F24J2/20, F24J2/24 take precedence)]
F24J2/04F:	. . [N: Solar heat collectors having absorber surfaces of a particular form]
F24J2/04F2:	. . . [N: having two or more absorber surfaces]
F24J2/05:	. . surrounded by a transparent enclosure, e.g. evacuated solar collectors
F24J2/52A4A:	. . . . .  Assemblies forming a peripheral frame enclosing solar modules
F24J2/52A4C:	. . . . .  comprising vertical or inclined elements, e.g posts anchored into the ground and supporting solar modules, or legs coupled to solar modules and resting on a mounting surface
F24J2/52A4C2:	. . . . . .  Assemblies thereof coupled with other horizontal, vertical or inclined elongated elements which are adapted to support solar modules; Profile assemblies mounted on posts
F24J2/52A4D:	. . . . .  Assemblies of base elongated elements laid or fixed on a mounting surface, on which are coupled other horizontal or vertical or inclined elongated elements adapted to support solar modules; Profile assemblies provided with means for supporting solar modules at defined angular position
F24J2/52A6D:	. . . . .  adapted for supporting solar modules at defined angular position; Base plates provided with means for supporting solar modules at defined angular position
F24J2/05B:	. . . the enclosure being cylindrical
F24J2/06:	. . having concentrating elements
F24J2/06D:	. . . Prisms
F24J2/06E:	. . . Fluorescent material
F24J2/06F:	. . . Light guides
F24J2/07:	. . . Receivers working at high temperature, e.g. for solar power plants
F24J2/08:	. . . having lenses as concentrating elements
F24J2/08B:	. . . . having discontinuous faces, e.g. Fresnel lenses
F24J2/10:	. . . having reflectors as concentrating elements
F24J2/10B:	. . . . having discontinuous faces
F24J2/10C:	. . . . [N: flexible (F24J2/12C, F24J2/14C take precedence)]
F24J2/10D:	. . . . [N: characterised by the material or the construction of the reflector]
F24J2/12:	. . . . parabolic
F24J2/12C:	. . . . . flexible
F24J2/13:	. . . . hemispherical
F24J2/14:	. . . . semi-cylindrical or cylindro-parabolic
F24J2/14C:	. . . . . flexible
F24J2/15:	. . . . conical
F24J2/16:	. . . . having flat plates
F24J2/18:	. . . . spaced, opposed interacting reflecting surfaces
F24J2/20:	. . the working fluid being conveyed between plates
F24J2/20B:	. . . having conduits of plastic material
F24J2/20C:	. . . [N: having conduits formed by paired plates and internal partition means]
F24J2/20D:	. . . [N: having conduits formed by paired plates, only one of which is plane]
F24J2/20E:	. . . [N: having conduits formed by paired non-plane plates]
F24J2/20F:	. . . having curved plate-like conduits, e.g. semi-spherical
F24J2/20H:	. . . having conduits formed by inflation of portions of a pair of joined sheets
F24J2/22:	. . . having extended surfaces, e.g. protrusions, corrugations
F24J2/23:	. . the working fluid trickling freely or flowing in a continuous film over collector elements
F24J2/24:	. . the working fluid being conveyed through tubular heat absorbing conduits
F24J2/24B:	. . . [N: the tubular conduits being integrated in a block; the tubular conduits touching each other]
F24J2/24D:	. . . the tubular conduits being of plastic material
F24J2/24E:	. . . the tubular conduits are not fixed to heat absorbing plates and are not touching each other
F24J2/24E2:	. . . . the conduits being parallel to each other
F24J2/24E4:	. . . . the conduits being helically coiled
F24J2/24E6:	. . . . the conduits being spirally coiled
F24J2/24E8:	. . . . the conduits being otherwise bent, e.g. zig-zag
F24J2/26:	. . . having extended surfaces, e.g. protrusions ]
F24J2/26B:	. . . . the conduits being parallel to each other
F24J2/26D:	. . . . the conduits being spirally coiled
F24J2/26E:	. . . . the conduits being otherwise bent, e.g. zig-zag
F24J2/28:	. . having permeable mass, foraminous or porous materials
F24J2/30:	. . with means to exchange heat between plural fluids
F24J2/32:	. . having evaporator and condenser section, e.g. heat pipe
F24J2/34:	. . having heat storage mass
F24J2/34B:	. . . Hot water storage
F24J2/36:	. Rollable or foldable collector units
F24J2/38:	. employing tracking means
F24J2/40:	. Control arrangements; Control of position for tracking F24J2/38
F24J2/40B:	. . responsive to temperature
F24J2/40C:	. . responsive to wind
F24J2/40D:	. . for controlling transmission of solar radiation
F24J2/42:	. Solar heat systems not otherwise provided for solar heat systems in greenhouses A01G9/24C; distillation by solar energy C02F1/14; devices for producing mechanical power from solar energy F03G6/00; central heat systems using heat solar energy F24D11/00C2, F24D11/00D2, F24D11/02C2, F24D11/02D2; domestic hot-water supply systems using solar energy F24D17/00D, F24D17/00F3, F24D17/00F5, F24D17/00F7; air-conditioning systems using solar energy F24F5/00F; refrigeration machines, plants or systems using solar energy F25B27/00B; drying solid materials or objects by radiation, e.g. from the sun F26B3/28
F24J2/42B:	. . for swimming pools
F24J2/42C:	. . [N: for showers]
F24J2/44:	. . having thermosiphonic circulation
F24J2/46:	. Component parts, details or accessories of solar heat collectors
F24J2/46B:	. . [N: Safety or protection arrangements; Arrangements for preventing malfunction; Auxiliary devices, e.g. means for testing (control means F24J2/40)]
F24J2/46B10:	. . . [N: Means for cleaning or for removing snow]
F24J2/46B12:	. . .  Means for fluidically interconnecting different solar heat collectors or for connecting solar heat collectors with other components; Headers[C0205] [M1202]
F24J2/46B14:	. . . [N:Selection of specific heat-exchange medium
F24J2/46B16:	. . . Arrangements of sealing means
F24J2/46B18:	. . . Means for preventing corrosion or protecting against contaminants, e.g. preventing condensations
F24J2/46B18B:	. . . . [N: for draining rain water]
F24J2/46B18C:	. . . . [N: for maintaining vacuum, e.g. by using getters]
F24J2/46B18D:	. . . . [N: for preventing condensation]
F24J2/46B18E:	. . . . [N: for deaerating or degassing the working fluid]
F24J2/46B20:	. . . [N: Means for overtemperature protection (arrangements for draining the working fluid: F24J2/46B23); Means for overpressure protection]
F24J2/46B20B:	. . . . [N: Arrangements for modifying heat collecting features, e.g. by defocusing or by changing the position of heat receiving elements]
F24J2/46B20C:	. . . . [N: Cooling arrangements, e.g. by using external heat dissipating means or internal cooling circuits (F24J2/46B20D takes precedence)]
F24J2/46B20D:	. . . . [N: Arrangements for venting solar collector enclosures]
F24J2/46B20P:	. . . . [N: Arrangements for preventing overpressure inside solar collector enclosures (F24J2/46B20D takes precedence)]
F24J2/46B20R:	. . . . [N: Arrangements for preventing overpressure inside solar collector circuits]
F24J2/46B22:	. . . [N: Means for freezing protection (arrangements for draining the working fluid: F24J2/46B23)]
F24J2/46B23:	. . . [N: Arrangements for draining the working fluid]
F24J2/46B24:	. . . Solar heat collectors having absorber surfaces provided with at least one special coating, e.g. anti-reflective interfering
F24J2/46B26:	. . . Materials for the heat-exchange conduits (F24J2/20B, F24J2/24D, F24J2/48 take precedence)
F24J2/46B28:	. . . [N: Arrangements to accommodate differential expansion of solar collector elements]
F24J2/46B30:	. . . [N: Arrangements for protecting solar collectors against adverse weather conditions (F24J2/46B6 takes precedence)]
F24J2/46B6:	. . . Protective covers, lids; closure members F24J2/50 takes precedence
F24J2/46B8:	. . . Casings
F24J2/46B8B:	. . . . characterised by using specific material
F24J2/46B8B2:	. . . . .  Plastic materials[N1202]
F24J2/46B8B4:	. . . . .  Metallic materials[N1202]
F24J2/46B8D:	. . . . of plastic material
F24J2/46B8E:	. . . . of metallic material
F24J2/46C:	. . [N: Casings]
F24J2/46C2:	. . . [N: characterised by using specific material]
F24J2/46C2B:	. . . . [N: Plastic materials]
F24J2/46C2D:	. . . . [N: Metallic materials]
F24J2/46D:	. . [N: Means for fluidically interconnecting different solar collectors or for connecting solar connectors with other components; Headers; Fluid distributing means]
F24J2/46E:	. . [N: Selection of particular working medium (materials for heat transfer C09K5/00)]
F24J2/46F:	. . [N: Arrangements of sealing means]
F24J2/46K:	. . [N: Solar heat collectors having absorber surfaces provided with special coatings, e.g. anti-reflective coatings]
F24J2/46L:	. . [N: Materials for the heat-exchange conduits (F24J2/20B, F24J2/24D, F24J2/48 take precedence)]
F24J2/48:	. . characterised by absorber material
F24J2/48B:	. . . of metallic material F24J2/48F2 takes precedence
F24J2/48D:	. . . of plastic F24J2/48F4 takes precedence
F24J2/48E:	. . . of ceramic; of concrete; of natural stone F24J2/48F takes precedence
F24J2/48F:	. . . using absorber coatings radiation-absorbing paints C09D5/32
F24J2/48F2:	. . . . of metallic material
F24J2/48F4:	. . . . of plastic material
F24J2/50:	. . Transparent coverings
F24J2/50B:	. . . characterised by using specific material
F24J2/50B2:	. . . . plastic material
F24J2/50D:	. . . [N: using evacuated elements (F24J2/05 takes precedence)]
F24J2/51:	. . Thermal insulation
F24J2/51B:	. . . characterised by the material
F24J2/52:	. . Arrangement of mountings or supports
F24J2/52A:	. . . [N: Stationary supporting structures for solar modules; Load-bearing elements for movable supporting structures]
F24J2/52A10:	. . . . [N: comprising elongated non rigid elements, e.g. straps, wires, ropes]
F24J2/52A20:	. . . . [N: Fixation means, e.g. connectors or fasteners]
F24J2/52A20B:	. . . . . [N: Connectors for anchoring solar modules or supporting elements to the ground or to building structures]
F24J2/52A20B4:	. . . . . . [N: in the form of bent strips or assemblies of strips; Hook-like connectors; Connectors to be mounted between building covering elements]
F24J2/52A20B6:	. . . . . . [N: for anchoring to protrusions of buildings, e.g. to corrugations or to standing seams]
F24J2/52A20B8:	. . . . . . [N: Ground anchoring means; Foundations for supporting elements; Massive elements for anchoring supporting structures to the ground or to flat horizontal surfaces]
F24J2/52A20C:	. . . . . [N: Connectors for fixing solar modules, or solar module peripheral frames to supporting elements, e.g. to profiled mounting members]
F24J2/52A20C2:	. . . . . . [N: Solar module side connectors or base connectors]
F24J2/52A20C4:	. . . . . . [N: Clamping or clipping elements]
F24J2/52A20C4B:	. . . . . . . [N: with clamping action by using screw-threaded elements]
F24J2/52A20D:	. . . . . [N: Connectors for coupling adjacent supporting elements together, e.g. profile to profile connectors]
F24J2/52A20E:	. . . . . [N: Connectors for coupling adjacent solar modules or solar module peripheral frames together (F24J2/52A20C takes precedence)]
F24J2/52A30:	. . . . [N: comprising means for adjusting the final position or the final orientation of a supporting element relative to another one or relative to a mounting surface; comprising means for compensating mounting tolerances]
F24J2/52A4:	. . . . [N: comprising elongated rigid mounting elements, e.g. mounting profiles or rails for covering a building surface with solar modules; Module frames (F24J2/52A8 takes precedence)]
F24J2/52A4B:	. . . . . [N: Substantially planar profile assemblies, e.g. grids comprising coplanar profiles or stacked profiles]
F24J2/52A4B4:	. . . . . . [N: comprising profiles of particular shape having in cross-section first and second module supporting portions for coupling adjacent solar modules]
F24J2/52A4B6:	. . . . . . [N: Substantially coplanar profile assemblies comprising longitudinal profiles laterally coupled with transversal profiles]
F24J2/52A4E:	. . . . . [N: Solar module peripheral frames]
F24J2/52A6:	. . . . [N: comprising plate-like mounting elements, e.g. profiled or corrugated plates; Plate-like module frames (F24J2/52A8 takes precedence)]
F24J2/52A8:	. . . . [N: comprising elongated standing elements, e.g. posts, legs; Standing structures for supporting solar modules at defined orientation; Three-dimensional frameworks; Volumetric supporting structures, e.g. box-like elements or shaped bodies]
F24J2/52A8B:	. . . . . [N: Posts coupled with upper profiles]
F24J2/52A8C:	. . . . . [N: Profile arrangements, e.g. assemblies of base profiles with vertical or inclined profiles, three-dimensional frameworks (F24J2/52A8B takes precedence)]
F24J2/52A8D:	. . . . . [N: comprising bent plates or assemblies of plates]
F24J2/52A8E:	. . . . . [N: comprising shaped bodies, e.g. molded box-like elements, concrete elements, foamed elements; Massive supporting structures]
F24J2/52A8F:	. . . . . [N: Interconnected assemblies of stands; Stands having first and second module supporting portions for coupling adjacent modules]
F24J2/52B:	. . . adapted for non-rotary movement
F24J2/52C:	. . . Waterborne solar collectors
F24J2/52C2:	. . . . Moving platforms
F24J2/52D:	. . . Airborne solar collectors, e.g. using inflated structures F24J2/04B16C, F24J2/52C take precedence
F24J2/54:	. . . specially adapted for rotary movement F24J2/52C2 takes precedence
F24J2/54B:	. . . . with only one rotation axis
F24J2/54B2:	. . . . . with vertical axis
F24J2/54B4:	. . . . . with horizontal axis
F24J2/54B6:	. . . . . with inclined axis
F24J2/54C:	. . . . with two rotation axis
F24J2/54C2:	. . . . . with vertical primary axis
F24J2/54C4:	. . . . . with horizontal primary axis
F24J2/54C6:	. . . . . with inclined primary axis
F24J2/54D:	. . . . with more than two rotation axis or with multiple degrees of freedom
F24J3/00:	Other production or use of heat, not derived from combustion
F24J3/00B:	. using heat resulting from internal friction of a moving fluid or from friction between a fluid and a moving body
F24J3/00B2:	. . the fluid passing through a restriction means
F24J3/06:	. using natural heat
F24J3/08:	. . using geothermal heat
F24J3/08A:	. . . [N: by circulating a working fluid through underground channels, the working fluid not coming into direct contact with the ground]
F24J3/08A2:	. . . . Compact tube assemblies inserted into the ground, e.g. geothermal probes
F24J3/08A2A:	. . . . . in the form of bent tubes or in the form of tubes assembled with connectors or with return headers
F24J3/08A2B:	. . . . . in the form of tubes being closed at one end, i.e. return type
F24J3/08B:	. . . [N: by injecting a working fluid directly into the ground or by using underground water, e.g. systems using injection and recovery wells]
F24J3/08C:	. . . [N: by injecting a working fluid into a closed well; by using intermediate working fluids, e.g. by using heat pipes]