Scroll-type fluid machine including thrust receiving device

Details Scroll-type fluid machine including thrust receiving device Scroll-type fluid machine including thrust receiving device

2007-04-10

2011-12-13

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055300, C418S055500, C418S057000, C418S178000

Reexamination Certificate

active

08075289

ABSTRACT:
A scroll-type fluid machine has a fixed scroll (40) fixed in a housing (10), a movable scroll (52) that forms pressure chambers (52) in between the movable scroll (50) and the 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 retention hole (76) formed in the support wall (14), a pressure-receiving piece (78) retained in a recess (76), and an abrasion-resistant board (80) that is set in between the movable scroll (50) and the pressure-receiving piece (50) and has a sliding surface that comes into sliding contact with the pressure-receiving piece (78).

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