Fuel combustion assembly for an internal combustion engine having an encapsulated spark plug for igniting lean gaseous fuel within a precombustion chamber
US5947076A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Apr 17, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine includes a precombustion member which has a number of first ignition orifices defined therein. The precombustion member further has a precombustion chamber defined therein. The precombustion member is positioned relative to the head of the engine such that the precombustion chamber is in fluid communication with the engine's main combustion chamber via the first ignition orifices. The internal combustion engine further has a spark plug for igniting a gaseous fuel. The spark plug includes an encapsulating member which has a number of second ignition orifices defined therein. The encapsulating member defines a plug combustion chamber. The spark plug further includes a center electrode and a ground electrode which are both positioned within the plug combustion chamber. The encapsulating member is positioned relative to the precombustion member such that the plug combustion chamber is in fluid communication with the precombustion chamber via the second ignition orifices. The encapsulating member shelters the spark generated by the spark plug from turbulence within the precombustion chamber and the main combustion chamber. Such a configuration facilitates u…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.