Vane backpressure providing apparatus for sliding vane type comp

Details Vane backpressure providing apparatus for sliding vane type comp Vane backpressure providing apparatus for sliding vane type comp

1987-12-02

1990-06-26

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 93, 418268, F04C 18344, F04C 2902

Patent

active

049367617

ABSTRACT:
In a sliding vane type compressor including a cylinder having a cylindrical inner wall, a rotor disposed within the cylinder and having a vane slot, and an oil supply means for feeding oil during the rotation of the rotor to the vane backpressure chamber of the vane inserted slidably into the vane slot, refrigerating gas within the refrigeration cycle is used as vane backpressure means, which providing a gas passage opening, closing means is provided in a passage for supplying the gas, the gas passage being shut off during the steady operation of the compressor to cause the oil supply amount to be proper into the vane backpressure chamber to improve the durability and efficiency of the compressor.

REFERENCES:
patent: 4209287 (1980-06-01), Takada
patent: 4342547 (1982-08-01), Yamada et al.

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