Scroll device with suction chamber pressure relief

Details Scroll device with suction chamber pressure relief Scroll device with suction chamber pressure relief

1984-10-19

1985-12-24

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

417410, F01C 104, F04B 4908

Patent

active

045603308

ABSTRACT:
Disclosed is a scroll-type fluid machine which has an orbiting scroll member and a stationary scroll member each having an end plate and a spiral wrap protruding upright therefrom. The scroll members are assembled together such that their wraps mesh with each other to form therebetween closed chambers of volumes which are progressively decreased as the chambers are moved toward the centers of the scroll members as a result of an orbital movement of the orbiting scroll member with respect to the stationary scroll member. The machine is suitable for use as a refrigerant compressor in a refrigeration system. A fluid check valve is disposed in the refrigerant gas suction passage connected to the suction side of the machine, so as to prevent any reversing of the orbiting scroll member. A passage is formed to provide a communication between a suction chamber defined by the scroll members and another closed chamber. A relief valve is disposed in this communication passage so as to relief any abnormal high pressure from the suction chamber.

REFERENCES:
patent: 4389171 (1983-06-01), Eber et al.
patent: 4431380 (1984-02-01), Utter
patent: 4431388 (1984-02-01), Eber et al.
patent: 4456435 (1984-06-01), Hiraga et al.

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