Variable displacement apparatus and method of using same

Details Variable displacement apparatus and method of using same Variable displacement apparatus and method of using same

1996-02-16

1998-03-10

Nguyen, Hoang

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

418 21, 418 28, F16D 3900

Patent

active

057248125

ABSTRACT:
A variable displacement apparatus includes a pair of axially adjustable housing parts sealingly joined together to form a unitary pumping chamber. A pair of meshing elongated vanes or gears having a plurality of teeth disposed within the chamber in a meshing overlapping relationship for positive displacement pumping purposes. The gears are mounted adjustably within the chamber to move axially therein as the housing parts are adjusted axially relative to one another.

REFERENCES:
patent: 2895422 (1959-07-01), Gold et al.
patent: 4740142 (1988-04-01), Rohs et al.
patent: 5184947 (1993-02-01), Coombe
patent: 5203747 (1993-04-01), Warren
patent: 5460084 (1995-10-01), Otremba et al.
patent: 5477882 (1995-12-01), Duthie

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