WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F25B　REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS ({evaporation or evaporation apparatus for physical or chemical purposes, e.g. evaporation of liquids for gas phase reactions B01B 1/005}; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K 5/00; pumps, compressors F04; use of heat-pumps for domestic- or space-heating or for domestic hot-water supply F24D; air-conditioning, air-humidification F24F; fluid heaters using heat pumps F24H)

F25B 1/00 Compression machines, plant, or systems with non-reversible cycle (F25B 3/00, F25B 5/00, F25B 6/00, F25B 7/00, F25B 9/00 take precedence)

F25B 1/005 ・{of the single unit type (F25B 1/10 takes precedence)}

F25B 1/02 ・with compressor of reciprocating-piston type ({F25B 1/005,}F25B 1/10 take precedence)

F25B 1/04 ・with compressor of rotary type ({F25B 1/005,}F25B 1/10 take precedence)

F25B 1/047 ・・of screw type

F25B 1/053 ・・of turbine type

F25B 1/06 ・with compressor of jet type, e.g. using liquid under pressure ({F25B 1/005,}F25B 1/10 take precedence)

F25B 1/08 ・・using vapour under pressure

F25B 1/10 ・with multi-stage compression (with cascade operation F25B 7/00)

F25B 3/00 Self-contained rotary compression machines, i.e. with compressor, condenser, and evaporator rotating as a single unit

F25B 5/00 Compression machines, plant, or systems, with several evaporator circuits, e.g. for varying refrigerating capacity (with cascade operation F25B 7/00)

F25B 5/02 ・arranged in parallel

F25B 5/04 ・arranged in series

F25B 6/00 Compression machines, plant, or systems, with several condenser circuits

F25B 6/02 ・arranged in parallel

F25B 6/04 ・arranged in series

F25B 7/00 Compression machines, plant, or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit (F25B 9/00 takes precedence)

F25B 9/00 Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point

F25B 9/002 ・{characterised by the refrigerant}

F25B 9/004 ・・{the refrigerant being air (air conditioning F24F)}

F25B 9/006 ・・{the refrigerant containing more than one component (F25B 9/004 takes precedence; refrigerant materials per se C09K 5/00)}

F25B 9/008 ・・{the refrigerant being carbon dioxide}

F25B 9/02 ・using Joule-Thompson effect; using vortex effect

F25B 9/04 ・・using vortex effect

F25B 9/06 ・using expanders (F25B 9/10 takes precedence)

F25B 9/065 ・・{using pressurised gas jets}

F25B 9/08 ・using ejectors (F25B 9/10 takes precedence)

F25B 9/10 ・with several cooling stages

F25B 9/12 ・using 3He-4He dilution

F25B 9/14 ・characterised by the cycle used, e.g. Stirling cycle {(engine plants with Vuilleumier-type cycles F02G 1/0445)}

F25B 9/145 ・・{pulse-tube cycle}

F25B 11/00 Compression machines, plant, or systems, using turbines, e.g. gas turbines

F25B 11/02 ・as expanders (F25B 9/06 takes precedence)

F25B 11/04 ・・centrifugal type

F25B 13/00 Compression machines, plant, or systems withreversible cycle (defrosting cycles F25B 47/02)

F25B 15/00 Sorption machines, plant, or systems, operating continuously, e.g. absorption type

F25B 15/002 ・{using the endothermic solution of salt}

F25B 15/004 ・{of rotary type}

F25B 15/006 ・{with cascade operation}

F25B 15/008 ・{with multi-stage operation (F25B 15/006 takes precedence)}

F25B 15/02 ・without inert gas ({F25B 15/004, F25B 15/006, F25B 15/008}, F25B 15/12, F25B 15/14, F25B 15/16 take precedence)

F25B 15/025 ・・{Liquid transfer means}

F25B 15/04 ・・the refrigerant being ammonia evaporated from aqueous solution {(F25B 15/025 takes precedence)}

F25B 15/06 ・・the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide {(F25B 15/025 takes precedence)}

F25B 15/08 ・・the refrigerant being sulfuric acid {(F25B 15/025 takes precedence)}

F25B 15/09 ・・the refrigerant being hydrogen desorbed from a hydride {(F25B 15/025 takes precedence)}

F25B 15/10 ・with inert gas ({F25B 15/004, F25B 15/006, F25B 15/008}, F25B 15/12, F25B 15/14, F25B 15/16 take precedence)

F25B 15/12 ・with resorber ({F25B 15/004, F25B 15/006, F25B 15/008}, F25B 15/14 take precedence)

F25B 15/14 ・using osmosis ({F25B 15/004, F25B 15/006, F25B 15/008 take precedence})

F25B 15/16 ・using desorption cycle ({F25B 15/004, F25B 15/006, F25B 15/008 take precedence})

F25B 17/00 Sorption machines, plant, or systems, operating intermittently, e.g. absorption or adsorption type

F25B 17/02 ・the absorbent or adsorbent being a liquid, e.g. brine (F25B 17/10 takes precedence)

F25B 17/04 ・・with two or more boilers operating alternately

F25B 17/06 ・・with the boiler and evaporator built-up as a unit in a tiltable or revolving arrangement

F25B 17/08 ・the absorbent or adsorbent being a solid, e.g. salt (F25B 17/12 takes precedence)

F25B 17/083 ・・{with two or more boiler-sorbers operating alternately}

F25B 17/086 ・・{with two or more boiler-sorber/evaporator units}

F25B 17/10 ・using the endothermic solution of salt

F25B 17/12 ・using desorption of hydrogen from a hydride

F25B 19/00 Machines, plant, or systems, using evaporation of a refrigerant but without recovery of the vapour

F25B 19/005 ・{the refrigerant being a liquefied gas}

F25B 19/02 ・using fluid jet, e.g. of steam {(F25B 19/005 takes precedence)}

F25B 19/04 ・・using liquid jet, e.g. of water

F25B 21/00 Machines, plant, or systems, using electric or magnetic effects {(magnetic refrigerating material H01F 1/012 and H01F 1/017)}

F25B 21/02 ・using Peltier effect; using Nernst-Ettinghausen effect (thermo-electric elements H01L 35/00, H01L 37/00)

F25B 21/04 ・・reversible

F25B 23/00 Machines, plant, or systems, with a single mode of operation not covered by groups F25B 1/00 to F25B 21/00, e.g. using selective radiation effect

F25B 23/003 ・{using selective radiation effect}

F25B 23/006 ・{boiling cooling systems}

F25B 25/00 Machines, plant, or systems, using a combination of modes of operation covered by two or more of the groups F25B 1/00 to F25B 23/00(combinations of two or more modes of operation covered by a single main group, see the relevant group)

F25B 25/005 ・{using primary and secondary systems}

F25B 25/02 ・Compression-sorption machines, plants, or systems

F25B 27/00 Machines, plant, or systems, using particular sources of energy (F25B 30/06 takes precedence)

F25B 27/002 ・{using solar energy (use of solar heat not otherwise provided for F24J 2/00)}

F25B 27/005 ・・{in compression type systems}

F25B 27/007 ・・{in sorption type systems}

F25B 27/02 ・using waste heat, e.g. from internal-combustion engines

F25B 29/00 Combined heating and refrigeration systems, e.g. operating alternately or simultaneously

F25B 29/003 ・{of the compression type system}

F25B 29/006 ・{of the sorption type system}

F25B 30/00 Heat pumps

F25B 30/02 ・of the compression type

F25B 30/04 ・of the sorption type

F25B 30/06 ・characterised by the source of low potential heat

F25B 31/00 Compressor arrangements (compressors per se F04)

F25B 31/002 ・{lubrication (of compressors per se F04B, of machines or engines in general F01M)}

F25B 31/004 ・・{oil recirculating arrangements}

F25B 31/006 ・{cooling of compressor or motor (of compressors per se F04B 39/06)}

F25B 31/008 ・・{by injecting a liquid (for compressors in general F04B 39/062)}

F25B 31/02 ・of motor-compressor units

F25B 31/023 ・・{with compressor of reciprocating-piston type}

F25B 31/026 ・・{with compressor of rotary type}

F25B 33/00 Boilers; Analysers; Rectifiers (boiler-absorbers F25B 35/00)

F25B 35/00 Boiler-absorbers, i.e. boilers usable for absorption or adsorption

F25B 35/02 ・using a liquid as sorbent, e.g. brine

F25B 35/04 ・using a solid as sorbent

F25B 37/00 Absorbers; Adsorbers (boiler-absorbers F25B 35/00; separating processes involving the treatment of liquids with adsorbents B01D 15/00; separation of gases or vapours by adsorption B01D 53/02; separation of gases or vapours by absorption B01D 53/14; investigating using adsorption or absorption G01N 30/00); {(absorption or adsorption in general B01J 1/22)}

F25B 39/00 Evaporators; Condensers

F25B 39/02 ・Evaporators

F25B 39/022 ・・{with plate-like or laminated elements}

F25B 39/024 ・・・{with elements constructed in the shape of a hollow panel (for heat exchange in general F28F 3/12)}

F25B 39/026 ・・{specially adapted for sorption type systems}

F25B 39/028 ・・{having distributing means}

F25B 39/04 ・Condensers

F25B 40/00 Subcoolers, desuperheaters or superheaters

F25B 40/02 ・Subcoolers

F25B 40/04 ・Desuperheaters

F25B 40/06 ・Superheaters

F25B 41/00 Fluid-circulation arrangements, e.g. for transferring liquid from evaporator to boiler (pumps per se, sealings therefor F04)

F25B 41/003 ・{fluid line arrangements}

F25B 41/006 ・{optical fluid control arrangements}

F25B 41/02 ・using electro-osmosis

F25B 41/04 ・Disposition of valves (valves per se F16K)

F25B 41/043 ・・{in the circuit between evaporator and compressor}

F25B 41/046 ・・{of fluid flow reversing valves}

F25B 41/06 ・Flow restrictors, e.g. capillary tubes; Disposition thereof

F25B 41/062 ・・[Expansion valves (regulating valves per se G05D)]

F25B 41/065 ・・・{Float control valves}

F25B 41/067 ・・{capillary tubes}

F25B 43/00 Arrangements for separating or purifying gases or liquids (in analysers or rectifiers F25B 33/00); Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat (F25B 40/00 takes precedence)

F25B 43/003 ・{filters (in general B01D)}

F25B 43/006 ・{accumulators}

F25B 43/02 ・for separating lubricants from the refrigerant

F25B 43/04 ・for withdrawing non-condensible gases

F25B 43/043 ・・{for compression type systems}

F25B 43/046 ・・{for sorption type systems}

F25B 45/00 Arrangements for charging or discharging refrigerant

F25B 47/00 Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass

F25B 47/003 ・{for preventing corrosion}

F25B 47/006 ・{for preventing frost}

F25B 47/02 ・Defrosting cycles

F25B 47/022 ・・{hot gas defrosting}

F25B 47/025 ・・・{by reversing the cycle}

F25B 47/027 ・・{for defrosting sorption type systems}

F25B 49/00 Arrangement or mounting of control or safety devices (testing refrigerators G01M; control in general G05)

F25B 49/005 ・{of safety devices (F25B 49/02 and F25B 49/04 take precedence)}

F25B 49/02 ・for compression type machines, plant or systems

F25B 49/022 ・・{Compressor control arrangements (in general F04B)}

F25B 49/025 ・・{Motor control arrangements (motors per se H02K)}

F25B 49/027 ・・{Condenser control arrangements}

F25B 49/04 ・for sorption type machines, plant or systems

F25B 49/043 ・・{Operating continuously}

F25B 49/046 ・・{Operating intermittently} F25B 2100/00

F25B 2300/00 Special arrangements or features for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems

F25B 2309/00 Gas cycle refrigeration machines

F25B 2309/001 ・with a linear configuration or a linear motor

F25B 2309/002 ・with parallel working cold producing expansion devices in one circuit

F25B 2309/003 ・characterised by construction or composition of the regenerator

F25B 2309/004 ・using a compressor of the rotary type

F25B 2309/005 ・using an expander of the rotary type

F25B 2309/006 ・using a distributing valve of the rotary type

F25B 2309/02 ・using the Joule-Thompson effect

F25B 2309/021 ・・with a cryosurgical probe tip having a specific construction

F25B 2309/022 ・・characterised by the expansion element

F25B 2309/023 ・・with two stage expansion

F25B 2309/06 ・Compression machines, plant or systems characterised by the refrigerant being carbon dioxide

F25B 2309/061 ・・with cycle highest pressure above the supercritical pressure

F25B 2309/14 ・Compression machines, plant or systems characterised by the cycle used

F25B 2309/1401 ・・Ericsson or Ericcson cycles

F25B 2309/1402 ・・Pulse-tube cycles with acoustic driver

F25B 2309/1403 ・・Pulse-tube cycles with heat input into acoustic driver

F25B 2309/1404 ・・Pulse-tube cycles with loudspeaker driven acoustic driver

F25B 2309/1405 ・・Pulse-tube cycles with travelling waves

F25B 2309/1406 ・・Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements

F25B 2309/1407 ・・Pulse-tube cycles with pulse tube having in-line geometrical arrangements

F25B 2309/1408 ・・Pulse-tube cycles with pulse tube having U-turn or L-turn type geometrical arrangements

F25B 2309/1409 ・・Pulse-tube cycles with pulse tube having special type of geometrical arrangements not being a coaxial, in-line or U-turn type

F25B 2309/1411 ・・Pulse-tube cycles characterised by control details, e.g. tuning, phase shifting or general control

F25B 2309/1412 ・・Pulse-tube cycles characterised by heat exchanger details

F25B 2309/1413 ・・Pulse-tube cycles characterised by performance, geometry or theory

F25B 2309/1414 ・・Pulse-tube cycles characterised by pulse tube details

F25B 2309/1415 ・・Pulse-tube cycles characterised by regenerator details

F25B 2309/1416 ・・Pulse-tube cycles characterised by regenerator stack details

F25B 2309/1417 ・・Pulse-tube cycles without any valves in gas supply and return lines

F25B 2309/1418 ・・Pulse-tube cycles with valves in gas supply and return lines

F25B 2309/14181 ・・・the valves being of the rotary type

F25B 2309/1419 ・・Pulse-tube cycles with pulse tube having a basic pulse tube refrigarator (PTR), i.e. comprising a tube with basic schematic

F25B 2309/1421 ・・Pulse-tube cycles characterised by details not otherwise provided for

F25B 2309/1422 ・・Pulse tubes with basic schematic including a counter flow heat exchanger instead of a regenerative heat exchanger

F25B 2309/1423 ・・Pulse tubes with basic schematic including an inertance tube

F25B 2309/1424 ・・Pulse tubes with basic schematic including an orifice and a reservoir

F25B 2309/14241 ・・・Pulse tubes with basic schematic including an orifice reservoir multiple inlet pulse tube

F25B 2309/1425 ・・Pulse tubes with basic schematic including several pulse tubes

F25B 2309/1426 ・・Pulse tubes with basic schematic including at the pulse tube warm end a so called warm end expander

F25B 2309/1427 ・・Control of a pulse tube

F25B 2309/1428 ・・Control of a Stirling refrigeration machine

F25B 2313/00 Compression machines, plant, or systems with reversible cycle not otherwise provided for

F25B 2313/001 ・with two or more accumulators

F25B 2313/002 ・geothermal

F25B 2313/003 ・Indoor unit with water as a heat sink or heat source

F25B 2313/004 ・Outdoor unit with water as a heat sink or heat source

F25B 2313/005 ・Outdoor unit expansion valves

F25B 2313/006 ・two pipes connecting the outdoor side to the indoor side with multiple indoor units

F25B 2313/007 ・three pipes connecting the outdoor side to the indoor side with multiple indoor units

F25B 2313/008 ・Refrigerant heaters

F25B 2313/009 ・indoor unit in circulation with outdoor unit in first operation mode, indoor unit in circulation with an other heat exchanger in second operation mode or outdoor unit in circulation with an other heat exchanger in third operation mode

F25B 2313/021 ・Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit

F25B 2313/0211 ・・the auxiliary heat exchanger being only used during defrosting

F25B 2313/0212 ・・the auxiliary heat exchanger being only used during dehumidifying

F25B 2313/0213 ・・the auxiliary heat exchanger being only used during heating

F25B 2313/0214 ・・the auxiliary heat exchanger being used parallel to the indoor unit during heating operation

F25B 2313/0215 ・・the auxiliary heat exchanger being used parallel to the outdoor heat exchanger during heating operation

F25B 2313/023 ・using multiple indoor units

F25B 2313/0231 ・・with simultaneous cooling and heating

F25B 2313/0232 ・・with bypasses

F25B 2313/02321 ・・・during cooling

F25B 2313/02322 ・・・during defrosting

F25B 2313/02323 ・・・during heating

F25B 2313/0233 ・・in parallel arrangements

F25B 2313/02331 ・・・during cooling

F25B 2313/02332 ・・・during defrosting

F25B 2313/02333 ・・・during dehumidification

F25B 2313/02334 ・・・during heating

F25B 2313/0234 ・・in series arrangements

F25B 2313/02341 ・・・during cooling

F25B 2313/02342 ・・・during defrosting

F25B 2313/02343 ・・・during dehumidification

F25B 2313/02344 ・・・during heating

F25B 2313/025 ・using multiple outdoor units

F25B 2313/0251 ・・being defrosted alternately

F25B 2313/0252 ・・with bypasses

F25B 2313/02521 ・・・during cooling

F25B 2313/02522 ・・・during defrosting

F25B 2313/02523 ・・・during heating

F25B 2313/0253 ・・in parallel arrangements

F25B 2313/02531 ・・・during cooling

F25B 2313/02532 ・・・during defrosting

F25B 2313/02533 ・・・during heating

F25B 2313/0254 ・・in series arrangements

F25B 2313/02541 ・・・during cooling

F25B 2313/02542 ・・・during defrosting

F25B 2313/02543 ・・・during heating

F25B 2313/027 ・characterised by the reversing means

F25B 2313/0271 ・・the compressor allows rotation in reverse direction

F25B 2313/0272 ・・using bridge circuits of one-way valves

F25B 2313/02731 ・・using one three-way valve

F25B 2313/02732 ・・using two three-way valves

F25B 2313/02741 ・・using one four-way valve

F25B 2313/02742 ・・using two four-way valves

F25B 2313/02743 ・・using three four-way valves

F25B 2313/0276 ・・using six-way valves

F25B 2313/0279 ・・using nine-way valves

F25B 2313/02791 ・・using shut-off valves

F25B 2313/02792 ・・using reversing valve changing the refrigerant flow direction due to pressure differences of the refrigerant and not by external actuation

F25B 2313/029 ・Control issues

F25B 2313/0291 ・・related to the pressure of the indoor unit

F25B 2313/0292 ・・related to reversing valves

F25B 2313/0293 ・・related to the indoor fan, e.g. controlling speed

F25B 2313/0294 ・・related to the outdoor fan, e.g. controlling speed

F25B 2313/031 ・Sensor arrangements

F25B 2313/0311 ・・Pressure sensors near the expansion valve

F25B 2313/0312 ・・Pressure sensors near the indoor heat exchanger

F25B 2313/0313 ・・Pressure sensors near the outdoor heat exchanger

F25B 2313/0314 ・・Temperature sensors near the indoor heat exchanger

F25B 2313/0315 ・・Temperature sensors near the outdoor heat exchanger

F25B 2313/0316 ・・Temperature sensors near the refrigerant heater

F25B 2315/00 Sorption refrigeration cycles or details thereof

F25B 2315/001 ・Crystallization prevention

F25B 2315/002 ・Generator absorber heat exchanger (GAX)

F25B 2315/003 ・Hydrates for sorption cycles

F25B 2315/004 ・Inert heat-exchangers

F25B 2315/005 ・Regeneration

F25B 2315/006 ・Reversible sorption cycles

F25B 2315/007 ・Parallel systems therefor

F25B 2321/00 Details of machines, plants, or systems, using electric or magnetic effects

F25B 2321/001 ・by using electro-caloric effects

F25B 2321/002 ・by using magneto-caloric effects

F25B 2321/0021 ・・with a static fixed magnet

F25B 2321/0022 ・・with a rotating or otherwise moving magnet

F25B 2321/0023 ・・with modulation, influencing or enhancing an existing magnetic field

F25B 2321/003 ・by using thermionic electron cooling effects

F25B 2321/02 ・using Peltier effects; using Nernst-Ettinghausen effects

F25B 2321/021 ・・Control thereof

F25B 2321/0211 ・・・of fans

F25B 2321/0212 ・・・of electric power, current or voltage

F25B 2321/023 ・・Mounting details thereof

F25B 2321/025 ・・Removal of heat

F25B 2321/0251 ・・・by a gas

F25B 2321/0252 ・・・by liquids or two-phase fluids

F25B 2327/00 Refrigeration system using an engine for driving a compressor

F25B 2327/001 ・of the internal combustion type

F25B 2333/00 Details of boilers; Analysers; Rectifiers

F25B 2333/001 ・the generator or boiler having an analyser

F25B 2333/002 ・the generator or boiler is heated electrically

F25B 2333/003 ・the generator or boiler is heated by combustion gas

F25B 2333/004 ・the generator or boiler uses an inert gas as pressure equalizing medium

F25B 2333/005 ・the generator or boiler uses electromagnetic energy in the form of microwaves for desorbing the sorbate from the sorbate/sorbent compound

F25B 2333/0051 ・・the energy is used for heating an auxiliary medium which is used as heating source for desorbing the sorbate from the sorbate/sorbent compound

F25B 2333/006 ・the generator or boiler having a rectifier

F25B 2333/007 ・the generator or boiler heated by heat exchangers with steam or hot water as heating fluid or by a secondary boiling-condensing heater

F25B 2339/00 Details of evaporators; Details of condensers

F25B 2339/02 ・Details of evaporators

F25B 2339/021 ・・Evaporators in which refrigerant is sprayed on a surface to be cooled

F25B 2339/022 ・・Evaporators constructed from a pair of plates forming a space in which is located a refrigerant carrying coil

F25B 2339/023 ・・Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil

F25B 2339/024 ・・Evaporators with refrigerant in a vessel in which is situated a heat exchanger

F25B 2339/0241 ・・・having plate-like elements

F25B 2339/0242 ・・・having tubular elements

F25B 2339/04 ・Details of condensers

F25B 2339/041 ・・of evaporative condensers

F25B 2339/042 ・・of pcm condensers

F25B 2339/043 ・・Condensers made by assembling plate-like or laminated elements

F25B 2339/044 ・・Condensers with an integrated receiver

F25B 2339/0441 ・・・containing a drier or a filter

F25B 2339/0442 ・・・characterised by the mechanical fixation of the receiver to the header

F25B 2339/0443 ・・・the receiver being positioned horizontally

F25B 2339/0444 ・・・where the flow of refrigerant through the condenser receiver is split into two or more flows, each flow following a different path through the condenser receiver

F25B 2339/0445 ・・・with throttle portions

F25B 2339/0446 ・・・characterised by the refrigerant tubes connecting the header of the condenser to the receiver; Inlet or outlet connections to receiver

F25B 2339/045 ・・Condensers made by assembling a tube on a plate-like element or between plate-like elements

F25B 2339/046 ・・Condensers with refrigerant heat exchange tubes positioned inside or around a vessel containing water or pcm to cool the refrigerant gas

F25B 2339/047 ・・Water-cooled condensers

F25B 2341/00 Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves

F25B 2341/001 ・Ejectors not being used as compression device

F25B 2341/0011 ・・Ejectors with the cooled primary flow at reduced or low pressure

F25B 2341/0012 ・・Ejectors with the cooled primary flow at high pressure

F25B 2341/0013 ・・Ejector control arrangements

F25B 2341/0014 ・・Ejectors with a high pressure hot primary flow from a compressor discharge

F25B 2341/0015 ・・using two or more ejectors

F25B 2341/0016 ・・Ejectors for creating an oil recirculation

F25B 2341/06 ・Details of flow restrictors or expansion valves

F25B 2341/061 ・・Bidirectional expansion restrictors

F25B 2341/062 ・・Capillary expansion valves

F25B 2341/063 ・・Feed forward expansion valves

F25B 2341/064 ・・Superheater expansion valves

F25B 2341/065 ・・Electric expansion valves

F25B 2341/0651 ・・・actuated by electric heating means, e.g. a heated bimetallic element

F25B 2341/0652 ・・・being opened and closed cyclically, e. g. with pulse width modulation

F25B 2341/0653 ・・・actuated by an electric motor

F25B 2341/066 ・・Refrigeration circuits using more than one expansion valve

F25B 2341/0661 ・・・arranged in parallel

F25B 2341/0662 ・・・arranged in series

F25B 2341/067 ・・Expansion valves having a pilot valve

F25B 2341/0671 ・・・the pilot valve is electrically actuated

F25B 2341/068 ・・Expansion valves combined with a sensor

F25B 2341/0681 ・・・the sensor is heated

F25B 2341/0682 ・・・the sensor contains sorbent materials

F25B 2341/0683 ・・・the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas

F25B 2345/00 Details for charging or discharging refrigerants; Service stations therefor

F25B 2345/001 ・Charging refrigerant to a cycle

F25B 2345/002 ・Collecting refrigerant from a cycle

F25B 2345/003 ・Control issues for charging or collecting refrigerant to or from a cycle

F25B 2345/004 ・with several tanks to collect or charge a cycle

F25B 2345/005 ・Service stations therefor

F25B 2345/0051 ・・having a carrying handle

F25B 2345/0052 ・・having wheels

F25B 2345/006 ・characterised by charging or discharging valves

F25B 2345/007 ・characterised by the weighing of refrigerant or oil

F25B 2347/00 Details for preventing or removing deposits or corrosion

F25B 2347/02 ・Details of defrosting cycles

F25B 2347/021 ・・Alternate defrosting

F25B 2347/022 ・・Cool gas defrosting

F25B 2347/023 ・・Set point defrosting

F25B 2400/00 General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B

F25B 2400/01 ・Heaters

F25B 2400/02 ・Centrifugal separation of gas, liquid or oil

F25B 2400/03 ・Suction accumulators with deflectors

F25B 2400/04 ・Refrigeration circuit bypassing means

F25B 2400/0401 ・・for the compressor

F25B 2400/0403 ・・for the condenser

F25B 2400/0405 ・・for the desuperheater

F25B 2400/0407 ・・for the ejector

F25B 2400/0409 ・・for the evaporator

F25B 2400/0411 ・・for the expansion valve or capillary tube

F25B 2400/0413 ・・for the filter or drier

F25B 2400/0415 ・・for the receiver

F25B 2400/0417 ・・for the subcooler

F25B 2400/0419 ・・for the superheater

F25B 2400/05 ・Compression system with heat exchange between particular parts of the system

F25B 2400/051 ・・between the accumulator and another part of the cycle

F25B 2400/052 ・・between the capillary tube and another part of the refrigeration cycle

F25B 2400/053 ・・between the storage receiver and another part of the system

F25B 2400/054 ・・between the suction tube of the compressor and another part of the cycle

F25B 2400/06 ・Several compression machines arranged in parallel

F25B 2400/061 ・・the capacity of the first system being different from the second

F25B 2400/07 ・Details of compressors or related parts

F25B 2400/071 ・・Compressor mounted in a housing in which a condenser is integrated

F25B 2400/072 ・・Intercoolers therefor

F25B 2400/073 ・・Linear compressors

F25B 2400/074 ・・with multiple cylinders

F25B 2400/075 ・・with parallel compressors

F25B 2400/0751 ・・・the compressors having different capacities

F25B 2400/076 ・・having multiple cylinders driven by a rotating swash plate

F25B 2400/077 ・・Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts

F25B 2400/08 ・Refrigeration machines, plants and systems having means for detecting the concentration of a refrigerant

F25B 2400/09 ・Refrigeration machines, plants and systems having means for detecting the concentration of a sorbent solution

F25B 2400/11 ・Drop catchers

F25B 2400/12 ・Inflammable refrigerants

F25B 2400/121 ・・using R1234

F25B 2400/13 ・Economisers

F25B 2400/14 ・Power generation using energy from the expansion of the refrigerant

F25B 2400/141 ・・the extracted power is not recycled back in the refrigerant circuit

F25B 2400/15 ・Micro-electro-mechanical devices

F25B 2400/16 ・Receivers

F25B 2400/161 ・・arranged in parallel

F25B 2400/162 ・・characterised by the plug or stop

F25B 2400/17 ・Re-condensers

F25B 2400/18 ・Refrigerant conversion

F25B 2400/19 ・Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started

F25B 2400/21 ・Modules for refrigeration systems

F25B 2400/22 ・Refrigeration systems for supermarkets

F25B 2400/23 ・Separators

F25B 2400/24 ・Storage receiver heat

F25B 2500/00 Problems to be solved

F25B 2500/01 ・Geometry problems, e.g. for reducing size

F25B 2500/02 ・Increasing the heating capacity of a reversible cycle during cold outdoor conditions

F25B 2500/03 ・Cavitations

F25B 2500/04 ・Clogging

F25B 2500/05 ・Cost reduction

F25B 2500/06 ・Damage

F25B 2500/07 ・Exceeding a certain pressure value in a refrigeration component or cycle

F25B 2500/08 ・Exceeding a certain temperature value in a refrigeration component or cycle

F25B 2500/09 ・Improving heat transfers

F25B 2500/11 ・Reducing heat transfers

F25B 2500/12 ・Sound

F25B 2500/13 ・Vibrations

F25B 2500/14 ・the presence of moisture in a refrigeration component or cycle

F25B 2500/15 ・Hunting, i.e. oscillation of controlled refrigeration variables reaching undesirable values

F25B 2500/16 ・Lubrication

F25B 2500/17 ・Size reduction

F25B 2500/18 ・Optimization, e.g. high integration of refrigeration components

F25B 2500/19 ・Calculation of parameters

F25B 2500/21 ・Reduction of parts

F25B 2500/22 ・Preventing, detecting or repairing leaks of refrigeration fluids

F25B 2500/221 ・・Preventing leaks from developing

F25B 2500/222 ・・Detecting refrigerant leaks

F25B 2500/23 ・High amount of refrigerant in the system

F25B 2500/24 ・Low amount of refrigerant in the system

F25B 2500/25 ・Standardisation of apparatus or parts

F25B 2500/26 ・characterised by the startup of the refrigeration cycle

F25B 2500/27 ・characterised by the stop of the refrigeration cycle

F25B 2500/28 ・Means for preventing liquid refrigerant entering into the compressor

F25B 2500/29 ・High ambient temperatures

F25B 2500/31 ・Low ambient temperatures

F25B 2500/32 ・Weight

F25B 2600/00 Control issues

F25B 2600/01 ・Timing

F25B 2600/02 ・Compressor control

F25B 2600/021 ・・Inverters therefor

F25B 2600/022 ・・for multi-stage operation

F25B 2600/023 ・・controlling swash plate angles

F25B 2600/024 ・・by controlling the electric parameters, e.g. current or voltage

F25B 2600/025 ・・by controlling speed

F25B 2600/0251 ・・・with on-off operation

F25B 2600/0252 ・・・with two speeds

F25B 2600/0253 ・・・with variable speed

F25B 2600/026 ・・by controlling unloaders

F25B 2600/0261 ・・・external to the compressor

F25B 2600/0262 ・・・internal to the compressor

F25B 2600/027 ・・by controlling pressure

F25B 2600/0271 ・・・the discharge pressure

F25B 2600/0272 ・・・the suction pressure

F25B 2600/05 ・Refrigerant levels

F25B 2600/07 ・Remote controls

F25B 2600/11 ・Fan speed control

F25B 2600/111 ・・of condenser fans

F25B 2600/112 ・・of evaporator fans

F25B 2600/13 ・Pump speed control

F25B 2600/15 ・during shut down

F25B 2600/17 ・by controlling the pressure of the condenser

F25B 2600/19 ・Refrigerant outlet condenser temperature

F25B 2600/21 ・Refrigerant outlet evaporator temperature

F25B 2600/23 ・Time delays

F25B 2600/25 ・Control of valves

F25B 2600/2501 ・・Bypass valves

F25B 2600/2503 ・・Condenser exit valves

F25B 2600/2505 ・・Fixed-differential control valves

F25B 2600/2507 ・・Flow-diverting valves

F25B 2600/2509 ・・Economiser valves

F25B 2600/2511 ・・Evaporator distribution valves

F25B 2600/2513 ・・Expansion valves

F25B 2600/2515 ・・Flow valves

F25B 2600/2517 ・・Head-pressure valves

F25B 2600/2519 ・・On-off valves

F25B 2600/2521 ・・On-off valves controlled by pulse signals

F25B 2600/2523 ・・Receiver valves

F25B 2600/2525 ・・Pressure relief valves

F25B 2700/00 Sensing or detecting of parameters; Sensors therefor

F25B 2700/01 ・Sensors determining characteristics of the burner for a generator

F25B 2700/02 ・Humidity

F25B 2700/03 ・Oil level

F25B 2700/04 ・Refrigerant level

F25B 2700/05 ・Load shedding of a compressor

F25B 2700/06 ・Piston positions of a compressor

F25B 2700/11 ・Sensor to detect if defrost is necessary

F25B 2700/111 ・・using an emitter and receiver , e.g. sensing by emitting light or other radiation and receiving reflection by a sensor

F25B 2700/13 ・Mass flow of refrigerants

F25B 2700/131 ・・at the outlet of a subcooler

F25B 2700/133 ・・through the condenser

F25B 2700/1331 ・・・at the inlet

F25B 2700/1332 ・・・at the outlet

F25B 2700/135 ・・through the evaporator

F25B 2700/1351 ・・・of the cooled fluid upstream or downstream of the evaporator

F25B 2700/1352 ・・・at the inlet

F25B 2700/1353 ・・・at the outlet

F25B 2700/15 ・Power, e.g. by voltage or current

F25B 2700/151 ・・of the compressor motor

F25B 2700/17 ・Speeds

F25B 2700/171 ・・of the compressor

F25B 2700/172 ・・of the condenser fan

F25B 2700/173 ・・of the evaporator fan

F25B 2700/19 ・Pressures

F25B 2700/191 ・・near an expansion valve

F25B 2700/193 ・・of the compressor

F25B 2700/1931 ・・・Discharge pressures

F25B 2700/1932 ・・・Oil pressures

F25B 2700/1933 ・・・Suction pressures

F25B 2700/195 ・・of the condenser

F25B 2700/197 ・・of the evaporator

F25B 2700/21 ・Temperatures

F25B 2700/2101 ・・in a bypass

F25B 2700/2102 ・・at the outlet of the gas cooler

F25B 2700/2103 ・・near a heat exchanger

F25B 2700/2104 ・・of an indoor room or compartment

F25B 2700/2105 ・・Oil temperatures

F25B 2700/2106 ・・of fresh outdoor air

F25B 2700/2107 ・・of a Peltier element

F25B 2700/2108 ・・of a receiver

F25B 2700/2109 ・・of a separator

F25B 2700/2111 ・・of a heat storage receiver

F25B 2700/2113 ・・of a suction accumulator

F25B 2700/2115 ・・of a compressor or the drive means therefor

F25B 2700/21151 ・・・at the suction side of the compressor

F25B 2700/21152 ・・・at the discharge side of the compressor

F25B 2700/21153 ・・・of electronic components

F25B 2700/21154 ・・・of an inverter

F25B 2700/21155 ・・・of the oil

F25B 2700/21156 ・・・of the motor

F25B 2700/21157 ・・・・at the coil or rotor

F25B 2700/2116 ・・of a condenser

F25B 2700/21161 ・・・the fluid cooled by the condenser

F25B 2700/21162 ・・・of the refrigerant at the inlet of the condenser

F25B 2700/21163 ・・・of the refrigerant at the outlet of the condenser

F25B 2700/2117 ・・of an evaporator

F25B 2700/21171 ・・・of the fluid cooled by the evaporator

F25B 2700/21172 ・・・・at the inlet

F25B 2700/21173 ・・・・at the outlet

F25B 2700/21174 ・・・of the refrigerant at the inlet of the evaporator

F25B 2700/21175 ・・・of the refrigerant at the outlet of the evaporator