IPC Subgroup
F25B 41/31 Expansion valves
Introduced: January 2021
Full Title
Fluid-circulation arrangements > Expansion means; Dispositions thereof > Expansion valves
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
- Subclass:
- REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
6 direct subcodes
Child Classifications
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- F25B 41/315 actuated by floats
- F25B 41/32 having flow rate limiting means other than the valve member, e.g. having bypass orifices in the valve body
- F25B 41/325 having two or more valve members
- F25B 41/33 with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
- F25B 41/34 with the valve member being actuated by electric means, e.g. by piezoelectric actuators
- F25B 41/36 with the valve member being actuated by bimetal elements or shape-memory elements influenced by fluids, e.g. by the refrigerant