Method and apparatus for regulating gas entrainment in a fuel injection spray of an internal combustion engine
US6830028B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Jun 2, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A technique is provided for regulating gas entrainment into a fuel spray in a fuel-injected engine. The fuel spray issues from a nozzle positioned in a gas entrainment shrouding recess, such as in the cylinder head. The depth and elevational profile of the recess are selected to provide a desired degree of gas entrainment. By reducing gas entrainment, a desired spray shape may be established or maintained, such as a hollow cone. More gas entrainment may be provided by altering the recess geometry, and that of the combustion chamber surrounding the recess, to modify the spray or the spray distribution, such as to partially or fully fill a spray cone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.