Scroll compressor with dual pocket axial compliance

Details Scroll compressor with dual pocket axial compliance Scroll compressor with dual pocket axial compliance

1989-10-06

1991-02-12

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 555, 418 57, F04C 1804, F04C 2700

Patent

active

049920324

ABSTRACT:
Two annular pressure pockets are used to push the orbiting scroll against the fixed scroll to minimize leakage. One pocket is at intermediate pressure and the other is at discharge pressure. The pockets are defined by the orbiting scroll and an axial ring. In the preferred embodiment inner and outer seals are carried by the axial ring and an intermediate seal is carried by the orbiting scroll whereby the pressure pockets are of an eccentric configuration.

REFERENCES:
patent: 3600114 (1971-08-01), Dvorak et al.
patent: 3884599 (1975-05-01), Young et al.
patent: 3924977 (1975-12-01), McCullough
patent: 3994633 (1976-11-01), Shaffer
patent: 4496296 (1985-01-01), Arai et al.
patent: 4645437 (1987-02-01), Sakashita et al.
patent: 4743181 (1988-05-01), Murayama et al.

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