Land vehicles – Body elevation or tilt – Establishing riding or trim height
Patent
1979-12-17
1981-10-06
Song, Robert R.
Land vehicles
Body elevation or tilt
Establishing riding or trim height
280 61, 280707, B60G 1704
Patent
active
042931398
ABSTRACT:
A vehicle load-leveling system includes a fluid actuated strut connected between the vehicle frame and axle. A piston moves to transfer actuating fluid to the strut in response power steering fluid pressure. A solenoid-controlled spool valve regulates communication of power steering fluid with the piston. Another solenoid-controlled valve assembly controls communication of actuating fluid with the strut. A height sensor cooperates with the solenoids so that selected amounts of actuating fluid are communicated to the strut to maintain the separation of the frame and the axle substantially between a predetermined range.
REFERENCES:
patent: 2869892 (1959-01-01), Sahagian
patent: 2895744 (1959-07-01), Jackson
patent: 3390892 (1968-07-01), Van Winsen
patent: 3649044 (1972-03-01), Higginbotham
patent: 3653676 (1972-04-01), Higginbotham
patent: 3895816 (1975-07-01), Takahashi
patent: 4017099 (1977-04-01), Hegel
patent: 4128112 (1978-12-01), Brown
Decker Ken C.
Schoenle Paul David
Song Robert R.
The Bendix Corporation
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