Hydraulic power steering system with reservoir and method of operating same
US6832969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2001 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Apr 20, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/062
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus (10) comprises a hydraulic fluid operated automatic transmission (20) for transmitting motive power from an engine (22) of a vehicle (16) to drive wheels (24) of the vehicle. The apparatus (10) also includes a hydraulic fluid power assisted steering gear (12) for effecting steering movement of steerable wheels (14) of the vehicle (16), the steering gear including a fluid motor (19). The apparatus (10) includes one body of hydraulic fluid (30) for operating both the transmission (20) and the steering gear (12), and one reservoir (32). A transmission pump (40) connected with the reservoir (32) pumps fluid (30) between the reservoir and the transmission (20). A power steering pump (34) connected with the reservoir (32) pumps fluid (30) between the reservoir and the motor (19). One of the pumps (40, 34) is operative to pump fluid (30) between the reservoir (32) and a cooler (50).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.