Leveling and lockup system for wheel tractor suspension system

Details Leveling and lockup system for wheel tractor suspension system Leveling and lockup system for wheel tractor suspension system

1975-03-05

1976-04-27

Goodman, Philip

Land vehicles

Body elevation or tilt

Establishing riding or trim height

280702, 56209, B60G 1126

Patent

active

039530400

ABSTRACT:
A cushioning, leveling and lockup system for a suspended axle vehicle having a leveling control subsystem which automatically corrects any changes in the distance between a vehicle frame and axle by communicating pressurized fluid from a pressure source to reposition fluid suspension cylinder struts, and a lockup subsystem having a lockup valve which isolates spring cushioning devices from the suspension struts, to reduce suspension cushioning, the lockup subsystem permitting rotation about the longitudinal axis of the vehicle or roll oscillation during lockup by interconnecting the cylinders through a flow path across the lockup valve.

REFERENCES:
patent: 3643970 (1972-02-01), Gauchet
patent: 3869141 (1975-03-01), Ito

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