Parker-Hannifin Corporation

Frank Iannizzaro

Hao Zhang

Yu-Sen James Chu

Satish Kumar Raju Kalidindi

Steven R Huard

Robb Fisher

Brian Burgess

Suresh Natarajan

An example assembly comprises: a main housing; an electric motor disposed in the main housing and comprising a stator fixedly positioned in the main housing, and a rotor positioned within the stator; a hydraulic pump positioned in the main housing and at least partially within the rotor, wherein the hydraulic pump is configured to receive fluid from an inlet port and provide fluid flow to an outlet port, wherein the hydraulic pump comprises a pump shaft rotatably coupled to the rotor of the electric motor; a controller housing coupled to the main housing; and a motor controller comprising one or more circuit boards disposed within the controller housing and configured to generate electric current to drive the electric motor.

Electric motor with integrated hydraulic pump and motor controller

An example assembly comprises: a pump cover; a thrust plate configured to interface with the pump cover at a first side of the thrust plate and interface with gears of a gear pump at a second side of the thrust plate; and a seal disposed within a seal cavity formed at an interface between the thrust plate and the pump cover, wherein the seal defines multiple partitions at the interface between the thrust plate and the pump cover and seals each partition of the multiple partitions from other partitions.

Hydraulic gear pump with axial compensation

Growing community of inventors

Canfield, OH, United States of America

Frank Iannizzaro