Closed loop carburetor air-fuel ratio control apparatus
US4034730A · kind A · utility
16Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1975 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | Sep 15, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/74
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an internal combustion engine with exhaust means and a carburetor including a fuel bowl, means are provided for delivering fuel to the fuel bowl at a pressure varying in response to the output signal of an air-fuel ratio sensor in the exhaust means to maintain a substantially constant air-fuel ratio to the engine. The fuel supply means may comprise, for example, an electric fuel pump whose input power is varied according to the sensor signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.