Rotational speed control device during idling of engine
US4385602A · kind A · utility
8Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1981 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Jul 23, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2011/102
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An idling rotational speed control device wherein, when an engine ignition switch is turned off, an air flow rate control device is driven to a fully closed position or a fully opened position, and the air flow rate control valve is controlled referenced from the fully closed position or the fully opened position as the new reference position. During idling, the flow rate of air taken into an intake manifold is controlled by the intentional opening degree from the reference position of the air flow rate control valve so as to correctly perform control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.