Throttle assembly with oil seal bushing
US6553963B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2000 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Nov 11, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D9/106
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A throttle assembly for an internal combustion engine includes a throttle body that defines an airflow passage, a throttle shaft rotatably mounted to the throttle body and extending though the airflow passage, a throttle plate coupled to the throttle shaft, and a seal member coupled to the throttle shaft. More specifically, one end of the throttle shaft extends through the throttle body, and a seal member surrounds the throttle shaft between the throttle body and the shaft. The seal member extending into the airflow passage and effectively forms a standpipe extending into the airflow passage for a length sufficient to prevent pooled engine fluid from seeping out of said throttle body along said throttle shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.