Patent ID: 7543824
Filing Date: 2009-06-09
Classification: B60G,F16F

Abstract:
1. A hydraulic suspension unit for the front axle suspension of a tractor, comprising 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; 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, each anchoring block having an anchorage point the suspension unit further comprising a valve body having control valves connected to regulate the flow of hydraulic fluid to and from the working chambers of the jack; and the anchoring block on the end of the cylinder body having a portion which extends longitudinally beyond the connecting line between the anchorage points, said portion having a mounting surface facing upwardly away from the cylinder body and comprising internal bores leading from the mounting surface to the working chambers of the hydraulic jack; the valve body being directly mounted on the anchoring block of the cylinder body on the side thereof remote from the anchoring block of the piston rod.