Refrigerant compressor with shaft bearing having improved wear r

Details Refrigerant compressor with shaft bearing having improved wear r Refrigerant compressor with shaft bearing having improved wear r

1988-02-17

1988-10-11

Vrablik, John J.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

With condition responsive control of non-working fluid

418 87, 418 94, F04C 18344, F04C 2902, F04C 2904

Patent

active

047767782

ABSTRACT:
In a refrigerant compressor, a driving shaft is rotatably supported within a compressor housing by a bearing on a suction side. A trigger valve is provided in a passageway communicating a discharge pressure chamber with the bearing on the suction side. When pressure within the discharge pressure chamber is lower than a predetermined value, the trigger valve opens the passageway to permit gaseous refrigerant of high temperature within the discharge pressure chamber to be supplied to the bearing on the suction side.

REFERENCES:
patent: 3899271 (1975-08-01), Glanvall
patent: 4144002 (1979-03-01), Shibuya et al.
patent: 4391573 (1983-07-01), Tanaka et al.
patent: 4484868 (1984-11-01), Shibuya et al.

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