Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – With condition responsive control of non-working fluid
Patent
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.
Iio Masahiro
Nakamura Teruo
Ono Mitsuya
Takada Haruhiko
Diesel Kiki Co. Ltd.
Vrablik John J.
Walnoha Leonard P.
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