Gerotor pump having an eccentric ring housing with an integral pressure chamber
AssigneeTorque-Traction Technologies, Inc.
InventorsDavid M. Morse, Jun Yoshioka
Life of this patent
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Abstract
A gerotor assembly includes a pressure chamber with an integral eccentric ring for a motor vehicle hydraulic differential for use in hydraulic limited slip differentials for axles, transfer case center differentials and similar devices. The gerotor pump assembly in accordance with the present invention includes a housing having an integral ring which provides a pressure chamber for a piston, an eccentrically positioned recess for a inner rotor and an outer rotor and a location for a pressure limiting system. The gerotor pump assembly is of a non-reversing gerotor pump configuration using known methods to produce a unidirectional fluid flow.
Claims20
A gerotor pump assembly comprising:
- an inner rotor having a plurality of external teeth;
- an outer rotor having a plurality of internal teeth, the number of the internal teeth in the outer rotor being one greater in number than the number of the external teeth of the inner rotor;
- and
- a one piece eccentric ring housing having a first side opposite a second side and an aperture through the center thereof;
- wherein the first side comprises a cylindrical housing body having an eccentric ring formed by an eccentrically positioned cylindrical recess for housing the inner rotor and outer rotor;
- wherein the second side comprises an annular recess forming an annular piston housing.
A one piece eccentric ring housing for use with an inner and outer rotor of a gerotor pump assembly, comprising:
- a first side opposite a second side;
- wherein the first side comprises a circular housing body having an eccentrically positioned recess for housing the inner and outer rotor;
- wherein the second side comprises an annular piston housing;
- and
- wherein the bottom of the eccentrically positioned recess includes an inlet chamber and an outlet chamber, the outlet chamber connected by a fluid passageway to the annular piston housing.
A one piece eccentric ring housing for use with an inner and outer rotor of a gerotor pump assembly, comprising:
- a cylindrical body having a first side opposite a second side and an aperture through the center thereof;
- wherein the first side comprises an eccentric ring formed by an eccentrically positioned cylindrical recess for housing the inner and outer rotor;
- wherein the second side comprises an annular recess forming a piston housing.
Dependencies are inferred from the claim text.