公开(公告)号：US20140076274A1

公开(公告)日：2014-03-20

申请号：US14028516

申请日：2013-09-16

申请人： Prometheus Applied Technologies, LLC

发明人： Luigi P. Tozzi ,  David Thomas Lepley ,  Maria Emmanuella Sotiropoulou ,  Joseph Martin Lepley ,  Steven B. Pirko

IPC分类号： F02P13/00

摘要： In certain embodiments, a time-varying spark current ignition system can be applied to improve spark plug ignitability performance and durability as compared to conventional spark ignition systems. Two performance parameters of interest are spark plug life (durability) and spark plug ignitability. In certain embodiments, spark plug life can be extended by applying a spark current amplitude as low as possible without causing quenching of the flame kernel while it is traveling within an electrode gap and/or by applying spark current of a long enough duration to allow the spark/flame kernel to clear a spark plug gap. In certain embodiments, ignitability can be improved by applying a high enough spark current amplitude to sustain the flame kernel once outside the spark plug gap and/or by applying a spark current for long enough to sustain the flame kernel once outside the spark plug gap.

摘要翻译： 在某些实施例中，与常规火花点火系统相比，可以应用随时间变化的火花点火系统来提高火花塞点火性能和耐久性。 感兴趣的两个性能参数是火花塞寿命（耐久性）和火花塞点火性。 在某些实施例中，火花塞寿命可以通过尽可能低地施加火花电流振幅来延长，而不会在火焰核在电极间隙内行进时引起火焰和/或通过施加足够长的持续时间的火花电流来允许 火花/火焰内核清除火花塞间隙。 在某些实施例中，可以通过施加足够高的火花电流振幅来维持一次火花塞间隙外的火焰核和/或通过施加火花电流足够长的时间来维持火焰塞一旦在火花塞间隙之外来提高点火性。

公开(公告)号：US10550820B2

公开(公告)日：2020-02-04

申请号：US14028516

申请日：2013-09-16

申请人： Prometheus Applied Technologies, LLC

发明人： Luigi P. Tozzi ,  David Thomas Lepley ,  Maria Emmanuella Sotiropoulou ,  Joseph Martin Lepley ,  Steven B. Pirko

IPC分类号： F02P9/00 ,  F02P13/00 ,  H01T13/20 ,  H01T13/50 ,  H01T13/46 ,  F02D35/02 ,  F02B19/00 ,  F02B19/12

摘要： In certain embodiments, a time-varying spark current ignition system can be applied to improve spark plug ignitability performance and durability as compared to conventional spark ignition systems. Two performance parameters of interest are spark plug life (durability) and spark plug ignitability. In certain embodiments, spark plug life can be extended by applying a spark current amplitude as low as possible without causing quenching of the flame kernel while it is traveling within an electrode gap and/or by applying spark current of a long enough duration to allow the spark/flame kernel to clear a spark plug gap. In certain embodiments, ignitability can be improved by applying a high enough spark current amplitude to sustain the flame kernel once outside the spark plug gap and/or by applying a spark current for long enough to sustain the flame kernel once outside the spark plug gap.