Control apparatus for a fuel metering system in an internal combustion engine
US4387687A · kind A · utility
2Cited by
8References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1980 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Nov 21, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/068
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control apparatus is proposed for a fuel metering system of an internal combustion engine having at least one additively functioning warmup enrichment circuit. The apparatus is characterized in that the additive enrichment can be reduced during overrunning. The purpose of this feature is to maintain the cleanest possible exhaust gas even during the warmup phase during overrunning. This is attained, for instance, by means of a logical linkage of an overrunning recognition signal and the output signal of an additively functioning correction circuit for the metering signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.