Fluid machine

Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll

Reexamination Certificate

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Details

C418S055400

Reexamination Certificate

active

07314356

ABSTRACT:
An outer end of a seal element for a fixed scroll is extended to a position close to an end of an inside spiral wall of the fixed scroll, and an outwardly extended portion is formed at an outer periphery of a disc-shaped base plate of a movable scroll, so that a bottom surface of the movable scroll is always kept in a sliding contact entirely with the seal element during the orbital movement of the movable scroll. A thickness of the outwardly extended portion formed at the outer periphery of the disc-shaped base plate is made smaller than that of the disc-shaped base plate, so that the weight of the fluid machine can be smaller.

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Chinese Office Action dated Apr. 20, 2007 in the corresponding Chinese application No. 200510056309.3 with an English translation.

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