Rack assist type electric power steering system

Details Rack assist type electric power steering system Rack assist type electric power steering system

2005-02-01

2005-02-01

Hurley, Kevin (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

Reexamination Certificate

active

06848536

ABSTRACT:
The present invention relates to a rack assist type electric power steering system, and in particular to an improved rack assist type electric power steering system which is capable of decreasing a processing section of a ball screw by improving an installation position and structure of a ball screw, protecting a connector and sensor of a motor assembly from a heat source and preventing any interference of parts due to a drooping of a rack bar. The system according to the present invention includes a rack bar, an input shaft, a rack housing, a torque sensor which surrounds an upper surrounding portion of the input shaft and is fixed to an upper portion of the rack housing; a second rack housing which surrounds the straight line section of the rack bar and contacts by a bush inserted into an inner diameter portion of the same, and a motor assembly.

REFERENCES:
patent: 5927429 (1999-07-01), Sugino et al.
patent: 20020003059 (2002-01-01), Yoshioka et al.
patent: 20020036111 (2002-03-01), Noguchi
patent: 20030019686 (2003-01-01), Fukuda et al.

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