Rotary compressor

Details Rotary compressor Rotary compressor

1981-10-02

1984-07-17

Gluck, Richard E.

Refrigeration

Automatic control

Refrigeration producer

417283, 417299, 417310, 622285, F25B 4100, F04B 4908

Patent

active

044598173

ABSTRACT:
A rotary compressor formed with an unloading port maintaining a working space in communication with a suction chamber and opened and closed by a valve, to vary the capacity of the compressor. The internal pressure of the working space is sensed in a compression stroke or this pressure and the pressure of a fluid drawn by suction are both sensed, so as to open and close the valve based on the sensed internal pressure of the working space or the pressure differential between the internal pressure of the working space and the pressure of the fluid drawn by suction, to give suitable hysteresis to the operation characteristics of the on-off valve to stabilize the operation of the on-off valve.

REFERENCES:
patent: 2109970 (1938-03-01), Grisell
patent: 2266187 (1941-12-01), Fitzgerald
patent: 2286961 (1942-06-01), Hanson
patent: 3224662 (1965-12-01), Oldsberg
patent: 3606588 (1971-09-01), Romenhaas
patent: 3850549 (1971-11-01), Hansen et al.
patent: 4060343 (1977-11-01), Newton
patent: 4229147 (1980-10-01), Linden

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