Pumps – With condition responsive pumped fluid control – Inlet throttle or stop valve
Patent
1991-04-04
1992-09-08
Bertsch, Richard A.
Pumps
With condition responsive pumped fluid control
Inlet throttle or stop valve
417310, F04B 4900, 417, 417
Patent
active
051453274
ABSTRACT:
A variable capacity vane compressor has a thrust bearing received in an annular recess formed in the inner peripheral surface of a through hole of a side block through which a drive shaft extends. The thrust bearing axially supports a capacity control element for controlling timing of start of compression of refrigerant gas. An annular member is force-fitted in the annular recess to urge one race of the thrust bearing against the side block. Another race of the thrust bearing is slidably fitted in the inner peripheral surface of the annular member. This race is force-fitted in a hole of the capacity control element through which the drive shaft extends. The inner peripheral surfaces of the two races are spaced from the outer peripheral surface of the drive shaft.
REFERENCES:
patent: 4887943 (1989-12-01), Kobayashi et al.
patent: 4890985 (1990-01-01), Sugiura
patent: 5020976 (1991-06-01), Nakajima et al.
patent: 5056990 (1991-10-01), Nakajima et al.
Nakajima Nobuyuki
Nakaya Tatsuo
Basichas Alfred
Bertsch Richard A.
Zexel Corporation
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