Power steering system for motor vehicle

Details Power steering system for motor vehicle Power steering system for motor vehicle

2000-02-04

2000-12-19

Swann, J. J.

Motor vehicles

Steering gear

With electric power assist

180444, B62D 599

Patent

active

061616443

ABSTRACT:
Disclosed is a power steering system for a motor vehicle. The power steering system comprises an inner toothed member fitted around a circumferential outer surface of an input shaft and having a plurality of teeth which are formed on a lower half of the inner toothed member; an outer toothed member having a plurality of teeth which are formed on a circumferential inner surface of the outer toothed member in a manner such that they face the plurality of teeth of the inner toothed member; a coil wound through a plurality of turns in a circumferential direction and above the plurality of teeth of the inner and outer toothed members; a pass plate surrounding an upper surface and a circumferential outer surface of the coil, for rendering aid to the formation of magnetic paths; a permanent magnet fitted around the outer toothed member; a magnetic pole piece sleeve fitted around the permanent magnet; and a non-magnetic pole piece sleeve arranged under the inner toothed member, the outer toothed member and the permanent magnet, the permanent magnet and the outer toothed member having one polarity, the inner toothed member having the other opposite polarity.

REFERENCES:
patent: 5454439 (1995-10-01), Birsching
patent: 5623409 (1997-04-01), Miller
patent: 5738182 (1998-04-01), Birsching et al.
patent: 5749432 (1998-05-01), Birsching
patent: 5931195 (1999-08-01), Birsching et al.

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