Regulating device for metering a supplementary air quantity to improve combustion in combustion engines
US4058978A · kind A · utility
Inventors
Key dates
| Filing date | May 12, 1975 |
| Grant date | Nov 22, 1977 |
| Priority date | — |
| Expiry date | May 12, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/74
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention relates to a regulating arrangement for metering a supplementary quantity of air for improving the combustion in internal combustion engines or afterburning of exhaust gases. The amount of air entering the regulating arrangement is metered as a function of the engine speed by means of an air pump driven by the engine. Part of the air entering the regulating arrangement is removed and returned depending on predetermined parameters. An auxiliary device responds to an emergency signal for the immediate shutoff of the fuel or fuel-air mixture used in the combustion. The emergency signal is transmitted by means monitoring the fuel-air ratio within substantially narrow tolerance limits of a predetermined threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.