Hydraulic power steering system with charging valve and air cushion in the tank
US8657590B2 · kind B2 · utility
0Cited by
31References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2006 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7779
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic power steering system which includes a tank and a power steering pump which takes in a pressure medium from an intake area which is decoupled from the prevailing atmospheric pressure on the side of the tank wall and delivers it under pressure to the power steering system. A valve device builds up a pre-pressure in the intake area and prevents a negative pressure and a positive pressure from building up on the interior of the oil tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.