Throttle valve device for an internal combustion engine
US6240899A · kind A · utility
20Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1999 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Apr 2, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A motor-driven throttle valve control device has a main body in which an air intake path is formed. The throttle valve is secured on a rotatable shaft supported by the main body. An electric motor drives the throttle valve through a gear mechanism. A throttle valve sensor is provided to detect the valve opening angle. Default and return springs are provided to bias the throttle valve. The main body includes a cover at one end of the throttle shaft. The gear mechanism, angle sensor and default and return springs are located between the cover and the main body of the throttle valve device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.