Scroll type fluid displacement apparatus with reinforced wrap se

Details Scroll type fluid displacement apparatus with reinforced wrap se Scroll type fluid displacement apparatus with reinforced wrap se

1981-05-27

1984-06-12

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418142, 277188R, 277204, 277235R, 277235A, F01C 102, F01C 1908

Patent

active

044538995

ABSTRACT:
A scroll type fluid displacement apparatus having an orbiting scroll member and a fixed scroll member which form at least one pair of sealed off fluid pockets therebetween for fluid compression. The axial end surface of the spiral element of the scroll member has a groove along the spiral curve. A seal element is loosely fitted in the groove and has a reinforcement member for preventing localized bending thereof. During operation, the pressurized fluid flows into the groove to urge the seal element against the opposite end plate, so that the axial sealing between the spiral element and end plates is effected, and localized wear of the seal element by changes in the fluid pressure is prevented by the rigidifying reinforcement member.

REFERENCES:
patent: 2807511 (1957-09-01), Fleming
patent: 2887331 (1959-05-01), Johnson
patent: 3986799 (1976-10-01), McCullough
patent: 3994633 (1976-11-01), Shaffer
patent: 3994635 (1976-11-01), McCullough
patent: 3994636 (1976-11-01), McCullough et al.
patent: 4065279 (1977-12-01), McCullough
patent: 4199308 (1980-04-01), McCullough
patent: 4212472 (1980-07-01), Mizuno et al.
patent: 4221390 (1980-09-01), Bainbridge
patent: 4345886 (1982-08-01), Nakayama et al.

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