Control apparatus for a fuel metering system in an internal combustion engine
US4480621A · kind A · utility
3Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1984 |
| Grant date | Nov 6, 1984 |
| Priority date | — |
| Expiry date | Mar 30, 2004 |
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.