Helical positive-displacement machine having a meandering sealin

Details Helical positive-displacement machine having a meandering sealin Helical positive-displacement machine having a meandering sealin

1993-11-02

1994-11-08

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418142, 277189, 277204, F04C 1804, F04C 2700, F16J 1516

Patent

active

053622170

ABSTRACT:
In a positive-displacement device for compressible media with a helically-shaped conveying chamber disposed in a stationary housing, a helically-shaped positive-displacement body is associated with the conveying chamber. The body is maintained on a disk-shaped rotor which can be eccentrically driven in relation to the housing in such a way that during operation, each one of its points performs a circular movement which is limited by the circumferential walls of the conveying chamber. The front faces of the positive-displacement body adjoining one lateral wall of the conveying chamber are provided with a groove into which a sealing strip, consisting of a resilient material which is capable of gliding, is inserted. The groove has at least partially a meander-like extent.

REFERENCES:
patent: 3994636 (1976-11-01), McCullough et al.
patent: 4869658 (1989-09-01), Tsutsumi et al.
patent: 5105634 (1992-04-01), Utter
Patent Abstracts of Japan, M-951, vol. 14, No. 144, Mar. 19, 1990.
Patent Abstracts of Japan, M-885, vol. 13, No. 477, Oct. 27, 1989.
Patent Abstracts of Japan, M-766, vol. 12, No. 442, Nov. 21, 1988.

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