Scroll fluid apparatus having an intermediate seal member with a

Details Scroll fluid apparatus having an intermediate seal member with a Scroll fluid apparatus having an intermediate seal member with a

1997-07-07

1999-08-17

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418188, F01C 104, F01C 1908

Patent

active

059384190

ABSTRACT:
A scroll mounting member for mounting a drive scroll therein is secured to a left end of a drive shaft coupled to a motor. A rotary bearing is fitted on the outer periphery of the scroll mounting member, and its outer periphery is secured to a scroll housing. The scroll mounting member is disposed for rotation in the scroll housing and is secured to the drive shaft. A bearing retainer for holding the rotary bearing is mounted by bolts via a spring in a mounting portion of the scroll housing such that the rotary bearing is adjustable in the thrust direction at the scroll housing. By turning the bolts, the rotary bearing is advanced or retreated in the thrust direction via the bearing retainer or the bearing retainer and a spring which, together with the bolts, provide adjustment. A self-lubricating sleeve seal is axially slidably fitted in an end portion of a rotation of driven scroll mounting member. A seal plate of a mirror-finished hard material is secured to a seal retainer on the cylindrical end side of the sleeve seal. The sleeve seal is pushed against the seal plate by the fluid pressure so that its end is in rotating and sealing contact with the seal.

REFERENCES:
patent: 2536292 (1948-06-01), Kollsman
patent: 3884599 (1975-05-01), Young et al.
patent: 4065279 (1977-12-01), McCullough
patent: 4781550 (1988-11-01), Morishita et al.
patent: 5391065 (1995-02-01), Wolverton et al.

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