REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS

Child Classifications

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• F25B 1/00 Compression machines, plants or systems with non-reversible cycle (F25B3/00, F25B5/00, F25B6/00, F25B7/00, F25B9/00 take precedence) +1 CPC IPC+CPC Available in IPC and CPC
• F25B 11/00 Compression machines, plants or systems, using turbines, e.g. gas turbines IPC+CPC Available in IPC and CPC
• F25B 13/00 Compression machines, plants or systems, with reversible cycle (defrosting cycles F25B47/02) IPC+CPC Available in IPC and CPC
• F25B 15/00 Sorption machines, plants or systems, operating continuously, e.g. absorption type +4 CPC IPC+CPC Available in IPC and CPC
• F25B 17/00 Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type IPC+CPC Available in IPC and CPC
• F25B 19/00 Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour +1 CPC IPC+CPC Available in IPC and CPC
• F25B 21/00 Machines, plants or systems, using electric or magnetic effects IPC+CPC Available in IPC and CPC
• F25B 23/00 Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect +2 CPC IPC+CPC Available in IPC and CPC
• F25B 2300/00 Special arrangements or features for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems 2nd only CPC only CPC only
• F25B 2309/00 Gas cycle refrigeration machines 2nd only +9 CPC CPC only CPC only
• F25B 2313/00 Compression machines, plants or systems with reversible cycle not otherwise provided for 2nd only +15 CPC CPC only CPC only
• F25B 2315/00 Sorption refrigeration cycles or details thereof 2nd only +7 CPC CPC only CPC only
• F25B 2321/00 Details of machines, plants or systems, using electric or magnetic effects 2nd only +4 CPC CPC only CPC only
• F25B 2327/00 Refrigeration system using an engine for driving a compressor 2nd only +1 CPC CPC only CPC only
• F25B 2333/00 Details of boilers; Analysers; Rectifiers 2nd only +7 CPC CPC only CPC only
• F25B 2339/00 Details of evaporators; Details of condensers 2nd only +2 CPC CPC only CPC only
• F25B 2341/00 Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves 2nd only +2 CPC CPC only CPC only
• F25B 2345/00 Details for charging or discharging refrigerants; Service stations therefor 2nd only +7 CPC CPC only CPC only
• F25B 2347/00 Details for preventing or removing deposits or corrosion 2nd only +1 CPC CPC only CPC only
• 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 2nd only +22 CPC CPC only CPC only
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