Hydraulic suspension system

Details Hydraulic suspension system Hydraulic suspension system

2011-04-05

2011-04-05

Fleming, Faye M. (Department: 3616)

Land vehicles

Wheeled

Running gear

Reexamination Certificate

active

07918470

ABSTRACT:
A hydraulic suspension system includes a suspension base (16) supporting wheels, a hydraulic cylinder (19) for displaceably suspending the suspension base from a vehicle body, and an oil passage connected to the hydraulic cylinder. An accumulator (21, 23) is incorporated within the oil passage. A flow control valve (51) is incorporated at an oil passage portion between the hydraulic cylinder and said accumulator for controlling an amount of work oil flowing therebetween. A pressure sensor (56) is provided for detecting a cylinder oil passage pressure effective on the hydraulic cylinder. A control unit (57) is provided for controlling operation of the flow control valve, based upon a detection value from the pressure sensor.

REFERENCES:
patent: 2006/0108185 (2006-05-01), Bitter
patent: 2009/0020975 (2009-01-01), Iwami et al.
patent: 2707546 (2005-07-01), None
patent: 0761481 (1997-03-01), None

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