Method of operating vehicle height adjusting apparatus

Details Method of operating vehicle height adjusting apparatus Method of operating vehicle height adjusting apparatus

1983-12-22

1986-02-04

Bertsch, Richard A.

Land vehicles

Body elevation or tilt

Establishing riding or trim height

280 6H, 280702, 180 41, B60G 1306

Patent

active

045680930

ABSTRACT:
A method of operating a vehicle height adjusting apparatus including a vehicle body having front and rear wheels, contractible and extensible dampers disposed between the front and rear wheels and the vehicle body, a motor, a pump unit having inlet and outlet ports and drivable by the motor for supplying a working fluid under pressure to the dampers, a first valve member disposed in a first fluid passage between the pump unit and the dampers for adjusting the height of the vehicle, and a second valve member disposed in a second fluid passage between the inlet and outlet ports of the pump unit and connected to the first fluid passage for discharging the fluid from the dampers to the outlet port of the pump unit. The method comprises the steps of actuating the pump unit, opening the second valve member no later than simultaneously with the actuation of the pump unit, and closing the second valve member a predetermined period of time after it has been opened, whereby the height of the vehicle can be increased.

REFERENCES:
patent: 3768820 (1973-10-01), Yew
patent: 3782755 (1974-01-01), Spichala
patent: 4364574 (1982-12-01), Saito
patent: 4377293 (1983-03-01), Senoo

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