Gm Global Technolgoy Operations, Inc.

Steering Solutions IP Holding Corporation

Kevin Mark McClendon

James Leroy Davison

Albert C Wong

Tom Cheuk-In Wong

Niklaus A Von Matt

Carl D Tarum

Paul E Kern

David Fredrick Hammerbacher

James Michael Shea

Casey M Bentoski

Robert Edward Beyerlein

Jeffrey H Krueger

Allan Lee Dickinson

A steering assembly includes a rack assembly coupled to a road wheel. The rack assembly includes a housing, a ball screw, a bearing, and a retainer. The housing defines an injection port. The ball screw is at least partially received within the housing. The bearing is received within the housing and rotatably supports the ball screw. The retainer is received within the housing and includes a first retainer portion and a second retainer portion. The first retainer portion cooperates with the housing. The second retainer portion extends from the first retainer portion and is spaced apart from the housing. The second retainer portion defines a channel. The channel, the second retainer portion, and a surface of the housing defines an injection pocket.

Steering assembly having an injected isolator

A motor vehicle hydraulic system including a power steering pump, a reservoir, a steering assist fluid motor, and a second fluid motor for a radiator cooling fan. A flow control valve remote from the power steering pump divides the total fluid flow from the power steering pump into a high flow branch and a low flow branch. Fluid circulates in the low flow branch at a substantially constant flow rate for a proportional control valve for the steering assist fluid motor and returns to the reservoir through an unrestricted tubular boss on the reservoir. Fluid in the high flow branch issues as a jet stream from a nozzle on the reservoir into a venturi passage submerged in fluid in the reservoir. The venturi passage is connected to an inlet port of the power steering pump. The jet stream aspirates fluid from the reservoir into the venturi passage. The kinetic energy of the jet stream is converted into superatmospheric pressure at the inlet port of the power steering pump to suppress cavitation. Fluid from the low flow branch dwells in the reservoir for a time duration adequate for natural release therefrom of any entrained gas bubbles.

Hydraulic system for motor vehicle

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Saginaw, MI, United States of America

Kevin Mark McClendon