Migration blocking valve in a refrigerating system

Details Migration blocking valve in a refrigerating system Migration blocking valve in a refrigerating system

1990-03-08

1992-02-18

Bennet, Henry A.

Refrigeration

Refrigeration producer

Compressor-condenser-evaporator circuit

62216, 251 63, F25B 4104

Patent

active

050883038

ABSTRACT:
A valve for blocking migration of refrigerant in a system including a compressor having an outlet for the compressed refrigerant and an inlet for the refrigerant to be compressed, the valve having a housing with a inlet passage for receiving the compressed refrigerant and an outlet passage, and a piston serving as the valve element which has a through passage for providing communication between the housing inlet and outlet passages when the valve is to be open. A conduit has one end in communication with the compressor case interior, and preferably with the compressor discharge muffler, and the other end with the valve housing. The valve piston is normally biased to a position to close the communication between the housing inlet and outlet passage and the refrigerant pressure when the compressor starts and is operating is conveyed through the conduit to the valve housing to move the piston to a position to open the communication between the housing inlet and outlet passages.

REFERENCES:
patent: 1153973 (1915-09-01), Tacit et al.
patent: 1516011 (1924-11-01), Heath
patent: 3004551 (1961-10-01), Shafer
patent: 3004552 (1961-10-01), Shafer
patent: 3060699 (1962-10-01), Tilney
patent: 3101187 (1963-08-01), Campbell
patent: 4081971 (1978-03-01), Eber
patent: 4267702 (1981-05-01), Houk
patent: 4382370 (1983-05-01), Suefuji et al.
patent: 4545215 (1985-10-01), Inoue
patent: 4622829 (1986-11-01), Okada

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