Sealing device of fluid machinery

Details Sealing device of fluid machinery Sealing device of fluid machinery

2007-09-26

2009-02-17

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055400, C418S149000, C277S589000, C277S584000

Reexamination Certificate

active

07491044

ABSTRACT:
A sealing device includes a stationary member, an orbiting member, a tip end surface of which slides on an inner face of the stationary member, and a sealing member to be fitted into a sealing groove engraved on the tip end surface. A sliding contact surface of the sealing member is pressed onto an inner surface of the stationary member with a predetermined force to slide on the inner surface in order that fluid sealing is secured between the sliding contact surface of the sealing member and the inner surface of the stationary member. The sealing member is divided into two parts of an upper ring and a lower ring, with the upper ring contacting the sliding contact surface and the lower ring facing a bottom surface of the sealing groove.

REFERENCES:
patent: 2456356 (1948-12-01), Aber
patent: 4087099 (1978-05-01), Kurio
patent: 4244588 (1981-01-01), Langewisch
patent: 5037281 (1991-08-01), Lane et al.
patent: 5632612 (1997-05-01), Shaffer
patent: 2001/0038800 (2001-11-01), Kimura et al.
patent: 4-214977 (1992-08-01), None
patent: 2001-248576 (2001-09-01), None

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