发明授权
- 专利标题: Direct injection, spark ignition internal combustion engine
- 专利标题(中): 直喷,火花点火内燃机
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申请号: US09936338申请日: 2002-01-28
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公开(公告)号: US06575132B1公开(公告)日: 2003-06-10
- 发明人: Johannes Ernst , Benedikt Ganz , Rolf Klenk , Klaus Rössler
- 申请人: Johannes Ernst , Benedikt Ganz , Rolf Klenk , Klaus Rössler
- 优先权: DE19911023 19990312
- 主分类号: F02B1700
- IPC分类号: F02B1700
摘要:
In a direct injection internal combustion engine with a combustion chamber which is delimited in each cylinder by a longitudinally movable piston and by the inner wall of a cylinder head, an injector injects fuel into the combustion chamber in order to form an ignitable fuel/air mixture with combustion air that is supplied separately, the mixture being ignited by a spark plug. The fuel is injected in a conical shape and the electrodes are protected from being wetted by fuel and from coking if they are located outside the lateral surface of the cone of fuel produced by the injection nozzle. In order to bring an ignitable mixture between the electrodes and to ensure an optimal operating performance of the internal combustion engine by improving the combustion process, the combustion chamber is configured so that the cone of fuel is injected in a free jet that is substantially unaffected by the perimeter of the combustion chamber, and the electrodes of the spark plug project inside a fuel vortex which emerges from the lateral surface during injection.