Rotary slide valve for power-assisted steering systems of motor

Details Rotary slide valve for power-assisted steering systems of motor Rotary slide valve for power-assisted steering systems of motor

1994-12-16

1996-08-06

Nguyen, Hoang

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91375A, 13767521, 180441, 29890126, F15B 910, F17D 300

Patent

active

055423388

ABSTRACT:
A rotary slide valve (1) for power-assisted steering systems of motor vehicles contains a rotary slide (2) that is guided in a limited rotary fashion in a control box (3). Control box (3) is connected with a valve exit member (7) in a nonrotating manner. Rotary slide (2) is connected with valve exit member (7) via a torsion rod (9) and a dead-travel clutch (10). Dead-travel clutch (10) consists of a catch section piece (16) of the valve exit member (7) and of recesses (17) that are fashioned on the free end of rotary slide (2). Rotary slide (2) with its longitudinal control grooves (12, 13) and with its recesses (17) is made by way of a noncutting production process. This production process is simplified and the rotary slide valve (1) is made smaller in that the recesses (17) of rotary slide (2) are arranged in longitudinal control grooves (13) of rotary slide (2) that are open toward one end.

REFERENCES:
patent: 3271845 (1966-09-01), Breher
patent: 3651683 (1972-03-01), Liebergeld
patent: 3746045 (1973-07-01), Bunker et al.
patent: 4272056 (1981-06-01), Komamura et al.
patent: 4347780 (1982-09-01), Takahashi
patent: 4532690 (1985-08-01), Delbon et al.
patent: 4703544 (1987-11-01), Saga
patent: 4788877 (1988-12-01), Robinson et al.

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