Scroll compressor with valved port for each compression chamber

Details Scroll compressor with valved port for each compression chamber Scroll compressor with valved port for each compression chamber

1988-06-17

1989-04-04

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418 55, F04C 1804, F04C 2908

Patent

active

048181951

ABSTRACT:
A scroll compressor is provided with a two groups of commmunication ports formed in and extending through an end plate of a stationary scroll member. Each group includes two or more communication ports. A lead valve is associated with each of the two groups of communication ports and is operable by a pressure differential in between an associated compression chamber and the discharge chamber to communicate the communication ports of the group to the discharge chamber to prevent the occurrence of over-compression in the compression chamber.

REFERENCES:
patent: 4389171 (1983-06-01), Eber et al.
patent: 4497615 (1985-02-01), Griffith

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