Vane compressor with ball valve located at the end of vane biasi

Details Vane compressor with ball valve located at the end of vane biasi Vane compressor with ball valve located at the end of vane biasi

1989-10-30

1991-01-22

Vrablik, John J.

Rotary expansible chamber devices

Positively actuated vane

Fluid biased

137517, F04C 2910

Patent

active

049867415

ABSTRACT:
A vane compressor has a communication passageway extending between a discharge pressure chamber and vane back pressure chambers. A valve is formed of a ball received within a ball-receiving bore and displaceable for opening and closing the communication passageway depending upon discharge pressure, a coiled spring urging the ball toward a valve opening position, and a stopper for stopping the ball in the valve opening position. The ball-receiving bore has an axial length smaller than an inner diameter thereof such that part of the ball is projected from the ball-receiving bore into the discharge pressure chamber when the ball is in the valve opening position.

REFERENCES:
patent: 4543049 (1985-09-01), Shibuya

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