Method of starting a multi-cylinder internal combustion engine without using a starter motor
US6739300B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of starting a multi-cylinder, direct-injection, internal combustion engine of a motor vehicle in particular without using a starter motor is described. The position of a piston in a cylinder of the internal combustion engine is determined, and fuel is injected into a combustion chamber of the cylinder whose piston is in a working phase, and the fuel is ignited immediately thereafter, thus triggering the starting operation. To improve the processing of the mixture during the starting operation, as the starting operation continues, immediately after ignition of the fuel in the cylinder which is in the working phase, fuel is injected into a combustion chamber of another cylinder whose piston is in an intake phase, and the injected fuel is ignited while still in the intake phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.