Scroll-type fluid machine including pressure-receiving piece

Details Scroll-type fluid machine including pressure-receiving piece Scroll-type fluid machine including pressure-receiving piece

2007-04-10

2011-11-01

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055100, C418S055600, C418S057000, C184S006180

Reexamination Certificate

active

08047823

ABSTRACT:
A scroll-type fluid machine has a movable scroll (50) that forms pressure chambers (52) in between the movable scroll (50) and a fixed scroll (40) and is orbitable relative to the fixed scroll (40), a support wall (14) that is provided for the housing (10) and supports thrust load transmitted from the movable scroll (50), and a thrust bearing (74) disposed in between the movable scroll (50) and the support wall (14). The thrust bearing (74) includes a ring-shaped support face (64) formed in the support wall (14), a retention plate (76) fixed onto the support face (64), a retention hole (86) that is formed in the retention plate (76) and opens in both faces of the retention plate (76), and a pressure-receiving piece (88) retained in a retention hole (86) and brought into surface contact with both the support face (64) and the movable scroll (50).

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