Method and device for reducing harmful gas emissions from a motor vehicle internal combustion engine
US5836151A · kind A · utility
9Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1995 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Jul 27, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B75/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
According to the invention, during a phase in which the engine is cold-started, the mechanical power supplied by the engine (1) to an auxiliary (23) is reduced by comparison with that normally absorbed by the auxiliary in normal operation. When this auxiliary is an alternator, the reduction in the power supplied by the engine, and therefore the slightest pollution which accompanies it, may be obtained by reducing the excitation current (i) of the alternator, under the control of a computer (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.