Apparatus for use in turning steerable vehicle wheels
US7364004B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 2005 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Oct 12, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus (10) for use in turning steerable vehicle wheels (14, 16) includes a hydraulic power steering motor (12). A pump (26) is operable to supply hydraulic fluid to the power steering motor (12). A gearset (50) is connected with the engine of the vehicle and the pump (26). The gearset (50) is operable to drive the pump at a first speed during turning of the steerable vehicle wheels (14, 16) at relatively low vehicle speeds. The gearset (50) is operable drive the pump at a second speed during turning of the steerable vehicle wheels at relatively high vehicle speeds. The second speed which is less than the first speed. The gearset is a differential gear mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.