Fully hydraulic steering arrangement for vehicles

Details Fully hydraulic steering arrangement for vehicles Fully hydraulic steering arrangement for vehicles

1991-07-01

1992-11-24

Mitchell, David M.

Motor vehicles

Surface effect vehicles

Dynamic seal or fluid curtain

91 44, 180134, B62D 506

Patent

active

051654962

ABSTRACT:
A control valve is opened (moved from its neutral position) by rotation of a steering wheel to conduct fluid from a pump to a steering meter device that controls the amount of fluid fed to a steering motor arrangement. When the steering motor piston has been displaced by a distance corresponding to the angle of rotation of the steering wheel, the control valve is moved by the steering meter device from its opened condition to its neutral position. A pilot valve controlled actuating device is provided to short circuit the steering meter device to permit continued fluid flow from the pump to the steering motor device and provide a mechanical braking force to the meter device to block rotation thereof and thereby the movement of the control valve to its neutral position. The braking mechanism is resiliently urged to a non-braking position.

REFERENCES:
patent: 4558759 (1985-12-01), Baatrup et al.
patent: 4771846 (1988-09-01), Venable et al.

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