Reservoir for power steering system
US6311724A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1999 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Feb 4, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86228
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A reservoir is provided having an upper reservoir body connected to a lower reservoir body. The reservoir includes and inlet port and an outlet port that are separated by a filter, which filters fluid flowing from the inlet to the outlet. In addition, a re-circulating cover is provided to separate fluid returning through the inlet port from the fluid in the main reservoir chamber. A re-circulating cover is provided that defines a re-circulating chamber. Fluid communication between the main reservoir chamber and the re-circulating chamber is restricted by the re-circulating cover until the main reservoir fluid reaches a predetermined temperature threshold. Accordingly, a given quantity of fluid is re-circulated from the inlet port to the outlet port and is continuously warmed before mixing with main reservoir fluid. Such a reservoir design helps to eliminate cold start up noises.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.