Four wave valve for reversible cycle refrigeration system

Details Four wave valve for reversible cycle refrigeration system Four wave valve for reversible cycle refrigeration system

1977-04-28

1979-02-13

Wayner, William E.

Refrigeration

Reversible, i.e., heat pump

With product treatment

13762543, 251134, F25B 1300

Patent

active

041393554

ABSTRACT:
A four way valve assembly for a reversible cycle refrigeration system in which a rotary valve accomplishes the switching between heating and cooling modes. The rotary valve is mounted in a cavity in a housing and is designed to be rotated by a unidirectional electric motor. The rotary valve comprises a plate having a pair of recesses in it, which each acts to connect a pair of ports in a base plate together. A high pressure bypass port maintains the pressure in the cavity at a relatively high level such that the high pressure tends to increase the abutting contact between the valve plate and the base plate. A cam and switch arrangement provides the necessary control to stop and start the electric motor.

REFERENCES:
patent: 2855000 (1958-10-01), Van Allen et al.
patent: 3165681 (1965-01-01), Pinckaers
patent: 3914676 (1975-10-01), Madonian et al.

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