Hydraulic suspension unit
US7543824B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 2005 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Jun 18, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2300/082
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.