Air supply device

Details Air supply device Air supply device

2007-11-20

2007-11-20

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055300, C277S392000, C277S393000, C384S479000, C384S482000, C384S484000

Reexamination Certificate

active

10560428

ABSTRACT:
An air supply device includes a plurality of bearings for rotatably supporting a shaft, a plurality of bearings for rotatably supporting an orbital scroll, and a plurality of bearings for rotatably supporting each of a plurality of rotation constraint members that prevents rotation of the orbital scroll about its own axis, but allows the orbital scroll to orbit relative to a stationary scroll. A grease-filled bearing is used as each of the bearings. Each of the bearings for supporting the orbital scroll includes two sealing materials disposed on respective sides of a plurality of rolling elements, and each of the sealing materials has an inner end held in contact with an inner ring and an outer end held in contact with an outer ring.

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