Method for operating an air-compressing auto-igniting internal combustion engine and injection valve suitable therefor
US4284043A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1978 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Nov 28, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for operating an air-compressing internal combustion engine with auto-ignition in which the fuel quantity to be injected is supplied initially in at least one pre-injection jet and thereafter in at least one main injection jet; the fuel of the main injection is preheated to a temperature above the temperature range critical for an evaporation of the fuel at least during operation of the engine in its upper load range while the fuel of the pre-injection is kept below the critical temperature; the injection valve includes two pressure spaces which are series-connected, whereby the pressure space disposed in second place, as viewed in the direction of flow, is arranged in heat-absorbing relationship to the interior of the working space of the internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.