Rack bushing for an automotive steering system
US8205515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2008 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Apr 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1967
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bushing for use in a hollow tube housing of a rack and pinion steering system. The bushing is formed as a generally cylindrical body having a central aperture and a circular cantilevered flange that extends outward from the body of the bushing. The flange contains a leading surface for compression contact with a corresponding interfering surface on the hollow interior of the rack housing. The flange is disposed to continuously compress a portion of its leading surface against a portion of the interfering surface on the hollow interior of the housing over a predetermined range of temperatures when the bushing is installed in the housing, and thereby providing thermal compensation to maintain a seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.