Internal combustion engine with direct fuel injection
    3.
    发明授权
    Internal combustion engine with direct fuel injection 有权
    具有直接燃油喷射的内燃机

    公开(公告)号:US06543408B1

    公开(公告)日:2003-04-08

    申请号:US09936340

    申请日:2002-02-06

    IPC分类号: F02B1700

    摘要: In internal combustion engines with direct fuel injection an injector injects fuel into the combustion chamber to form an ignitable fuel/air mixture with separately supplied combustion air, with the mixture to be ignited by a spark plug. The fuel is injected in a cone shape and the electrodes are protected from being wetted with fuel and coking if they are disposed outside the lateral surface of the conical fuel jet generated by the injection nozzle. In order to bring ignitable mixture between the electrodes and to ensure optimal operating behavior of the internal combustion engine by improving the combustion sequence, a combustion chamber configuration is provided such that the conical fuel jet is injected in a free jet which is substantially uninfluenced by the combustion chamber perimeter, and the electrodes of the spark plug project into a fuel vortex extending from the lateral surface during injection.

    摘要翻译: 在具有直接燃料喷射的内燃机中,喷射器将燃料喷射到燃烧室中以形成具有单独供应的燃烧空气的可点燃的燃料/空气混合物,混合物由火花塞点燃。 燃料以锥形注射,并且如果电极被设置在由注射喷嘴产生的锥形燃料喷嘴的侧面的外侧,则电极被保护免受燃料润湿和焦化。 为了在电极之间引入可燃的混合物并且通过改善燃烧顺序来确保内燃机的最佳操作行为,提供燃烧室配置,使得锥形燃料射流以自由射流注入,该自由射流基本上不受 燃烧室周边,并且火花塞的电极投射到在注射期间从侧表面延伸的燃料涡流。