Scroll hydraulic machine

Details Scroll hydraulic machine Scroll hydraulic machine

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 2/02 (2006.01) F01C 17/06 (2006.01) F01C 21/10 (2006.01) F04C 18/02 (2006.01)

Patent

CA 2227685

Disclosed is a scroll hydraulic machine comprising: a fixed scroll; a swirling scroll, which performs a revolving swirling motion while engaging with the fixed scroll; an Oldham joint, being made of a ferrous alloy and having a key for causing the swirling scroll to move in a revolving swirling motion while preventing the swirling scroll from rotating; an aluminum front case, structured such that a key-groove portion, to which the key of the Oldham joint is fitted, and a portion supporting a thrust force acting an the swirling scroll, are made of a ferrous alloy so that, even when lubricating oil slightly runs out, abnormal abrasion of the key groove does not occur; and a case body, for housing the fixed scroll, the swirling scroll, and the Oldham joint within a housing formed by attaching the front case to an opening portion of an end of the case body without a thrust bearing located between the front case and the swirling scroll.

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