Vane type rotary machine

Details Vane type rotary machine Vane type rotary machine

2006-06-06

2006-06-06

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

C418S259000, C418S260000

Reexamination Certificate

active

07056107

ABSTRACT:
The present invention relates to a vane-type rotary machine suitable for use in applications where a low-viscosity fluid such as water is used as a working fluid. According to the present invention, a vane-type rotary machine having a rotor (11) mounted with vanes and rotatably housed in a cam casing (10) includes a motor supply opening (or pump discharge opening) (30) for a working fluid, a motor return opening (or pump suction opening) (20) formed in the cam casing for a working fluid, and branch flow passages (23, 25, 33and35) branched from the motor supply opening (or pump discharge opening) and the motor return opening (or the pump suction opening) and communicating with vane chambers (22, 24, 32and34). The distances of the branch flow passages are identical to each other.

REFERENCES:
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patent: 9-158868 (1997-06-01), None
patent: 700684 (1979-12-01), None

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