Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1989-03-09
1990-03-06
Marmor, Charles A.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
91375A, B62D 508
Patent
active
049057847
ABSTRACT:
A power-assisted steering system includes a changeover valve unit comprising an input member arranged to be applied with the driver's steering effort and a valve assembly disposed between a hydraulic pump and a hydraulic power cylinder to control the supply of fluid under pressure from the pump to the power cylinder in response to movement of the input member, and a hydraulic reaction mechanism associated with the valve assembly to apply a reaction force to the input member in accordance with a hydraulic reaction pressure applie thereto. The reaction mechanism includes a reaction fluid chamber to be supplied with fluid under pressure from the pump respectively through a fired throttle and a flow control valve. The flow control valve is arranged to act as a fixed throttle valve when the pressure of fluid from the pump is lower than a predetermined value and to act as a constant flow control valve when the pressure of fluid from the pump becomes larger than the predetermined value. The system is arranged to increase the hydraulic pressure in the reaction fluid chamber in accordance with an increase of travel speed of the vehicle.
REFERENCES:
patent: 4765428 (1988-08-01), Kawakami et al.
Marmor Charles A.
McGiehan Donn
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Power-assisted steering system for automotive vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power-assisted steering system for automotive vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power-assisted steering system for automotive vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-41070