Method and apparatus for control of engine idling circuit
US4838224A · kind A · utility
3Cited by
8References
10Claims
0Family size
Inventor
Key dates
| Filing date | Jul 9, 1987 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Jul 9, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/74
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for controlling the idle circuit of a carbureted engine is disclosed. The apparatus includes a solenoid valve for blocking the idle circuit of a carburetor when engine speed exceeds a preset limit. Electronic circuits are disclosed to respond to engine speed and to activate the solenoid valve. The method disclosed involves interrupting the carburetor's idle circuit when engine speed exceeds a preset limit. In this fashion, fuel is conserved and air pollution is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.