Suspension system having active and passive modes

Details Suspension system having active and passive modes Suspension system having active and passive modes

1991-12-16

1993-02-23

Rice, Kenneth R.

Land vehicles

Wheeled

Running gear

280714, 36442405, B60G 1126

Patent

active

051883902

ABSTRACT:
The present invention is a suspension unit having active and passive modes, for a vehicle suspension system, having a fluid source for providing a pressurized fluid. The suspension unit comprises a fluid actuator, a fluid spring, and fluid connecting means for coupling the fluid source to the fluid actuator. The suspension unit further includes mode selection means coupled to the fluid connecting means for responsively selecting the mode of the suspension unit, first valve means coupled to the mode selection means for providing fluid communication between the fluid spring and the fluid actuator in the active mode, and second valve means coupled to the fluid connecting means between the fluid spring and the fluid actuator in the active mode for providing fluid communication between the fluid spring and the fluid actuator in the passive mode.

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patent: 5041977 (1991-08-01), Kazunobu
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