Hydraulic suspension unit

Details Hydraulic suspension unit Hydraulic suspension unit

2005-08-26

2009-06-09

Fleming, Faye M. (Department: 3616)

Land vehicles

Suspension modification enacted during travel

Riding or suspension height

Reexamination Certificate

active

07543824

ABSTRACT:
A hydraulic suspension unit for the front axle suspension of a tractor, comprises a hydraulic jack having a cylinder body, a piston arranged within the cylinder body to define two variable volume working chambers, a piston rod connected to the piston and sealingly guided in the cylinder body, and anchoring blocks on the ends of the cylinder body and of the piston rod for connecting the hydraulic jack to components of the suspension that are movable relative to one another. The suspension unit further comprising a valve body having valves connected to regulate the flow of hydraulic fluid to and from the working chambers of the jack. In the invention, the valve body is directly mounted on the anchoring block of the cylinder body on its side remote from the anchoring block of the piston rod.

REFERENCES:
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patent: 6834736 (2004-12-01), Kramer et al.
patent: 2004/0045763 (2004-03-01), Woods et al.
patent: 2005/0252699 (2005-11-01), Schedgick et al.

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