F - Mech Eng,Light,Heat,Weapons – 03 – C
Patent
F - Mech Eng,Light,Heat,Weapons
03
C
F03C 2/08 (2006.01) F04C 2/10 (2006.01)
Patent
CA 2064735
2064735 9102154 PCTABS00003 An improved commutator (27) for a gerotor-type hydraulic pump or motor (11) of the type having an orbiting outer (15) or inner (17) gear. Such pumps or motors require a commutator having a circular array of alternating inlet and outlet openings adjacent to a rotating valve plate (23) which regulates flow to the gerotor gears. The commutator of the present invention has a chambers section (49) and a fluid pathways section (47). The chambers section has a radially inner (65) and a radially outer (67) chamber disposed therein radially beneath the inlet port (55) and outlet port (57) of the pump or motor, also disposed in the chambers section. The radially outer chamber and radially inner chamber are each connected to one of the inlet and outlet ports. The pathways section has a circular array of alternating inlet (29) and outlet (31) openings therein and includes fluid pathways which connect these inlet and outlet openings, respectively, to one of the radially inner and radially outer chambers of the chambers section.
Parker Hannifin Corporation
Ridout & Maybee Llp
LandOfFree
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