Land vehicles – Body elevation or tilt – Establishing riding or trim height
Patent
1985-03-21
1987-02-10
Love, John J.
Land vehicles
Body elevation or tilt
Establishing riding or trim height
280714, B60G 1126
Patent
active
046418431
ABSTRACT:
A method and system are provided for installation in a vehicle having an air suspension system comprising four air beams, each supported over a vehicle axle by bellows supplied by air from an air tank, and under control of one front and two rear height control valves. Manually selective leveling control apparatus is installed in this system for leveling the vehicle, particularly when the vehicle (which has been converted from a bus to a motor home) is parked. Four five-way ball leveling valves are installed in the air suspension system. Each leveling valve is installed between a different height control valve, the bellows of an air beam, and the common air tank. Each five-way valve provides a means for adjusting the pressurized air to its associated air beam by manually setting it to: (1) a "raise" position which admits pressurized air directly from the air tank to the air beam; (2) a "lower" position in which the air beam is vented through the exhaust port of the valve; (3) a "hold" position in which the air beam is connected to a plugged valve opening; or (4) to an "automatic" position in which the air beam is placed under the control of the automatic height control valve by connecting the air beam directly to the automatic height control valve. The leveling valves are all mounted on, and controlled from, a control panel positioned near the driver's seat.
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Love John J.
Weaver Ross
LandOfFree
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