Rotary valve plate for internal gear device

Details Rotary valve plate for internal gear device Rotary valve plate for internal gear device

F - Mech Eng,Light,Heat,Weapons

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F01C 1/113 (2006.01) F04C 2/10 (2006.01) F04C 15/00 (2006.01)

Patent

CA 1312781

ABSTRACT OF THE INVENTION An improved rotary valve plate and internal gear machine wherein an imbalance across the rotary valve plate due to high pressure fluid on the commutator side of the valve plate being opposite low pressure fluid in the variable displacement chambers on the gear side of the valve plate is balanced by a recess which extends around the periphery of the valve plate and receives fluid from the gear side of the valve plate to urge the valve plate toward the commutator. Preferably, the internal gear machine is of a type with an orbiting outer rotor orbiting in an annulus with intermediate pressure fluid in the annulus. The recess on the gear side of the valve plate is disposed to receive intermediate pressure fluid from the annulus.

573980

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