公开(公告)号：WO2007055874A2

公开(公告)日：2007-05-18

申请号：PCT/US2006/040449

申请日：2006-10-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.

Inventor： LIPPERT, Andreas, M. ,  OTTO, Ronald, M. ,  PARRISH, Scott, E. ,  SOLOMON, Arun, S. ,  UPATNIEKS, Ansis ,  ZENG, Yangbing

IPC: F02B19/00

CPC classification number: F02D41/402 ,  F02D37/02 ,  F02D2041/389 ,  F02P5/1512 ,  Y02T10/44 ,  Y02T10/46

Abstract: A method and article of manufacture are provided to operate a spray-guided, spark-ignition, direct fuel injection engine, including injecting a first fuel pulse during a combustion cycle, and initiating spark ignition by energizing a spark igniter. A second fuel pulse is injected during the combustion cycle effective to form an ignitable fuel-air mixture proximal to the spark igniter during a period in time whereat the spark igniter is energized. A preferred elapsed time between an end of the first fuel pulse and start of the spark ignition is determined based upon engine load.

Abstract translation: 提供了一种方法和制造工具来操作喷射引导的，火花点火的直接燃料喷射发动机，包括在燃烧循环期间喷射第一燃料脉冲，以及通过激发火花点火器引发火花点火。 在燃烧循环期间有效地喷射第二燃料脉冲，以在火花点火器通电的时间段期间形成靠近火花点火器的可燃燃料 - 空气混合物。 基于发动机负荷确定第一燃料脉冲的结束和火花点火开始之间的优选经过时间。

公开(公告)号：WO2008130843A1

公开(公告)日：2008-10-30

申请号：PCT/US2008/059692

申请日：2008-04-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.

Inventor： SOLOMON, Arun, s. ,  OTTO, Ronald, M. ,  SZYMKOWICZ, Patrick, G.

IPC: H01T13/20 ,  H01T13/00

CPC classification number: H01T13/52 ,  F02B23/101 ,  H01T13/467 ,  Y02T10/125

Abstract: A spark plug includes a center electrode substantially aligned with a longitudinal first axis and a surface-gap ground electrode radially aligned with the center electrode along a surface-gap electrode second axis substantially orthogonal to the longitudinal first axis and passing there through. The center electrode and the surface-gap ground electrode define a radial spark gap there between. The spark plug further includes a J-gap ground electrode radially aligned with the center electrode. The center electrode and the J-gap ground electrode define an axial spark gap there between. The J-gap ground electrode radial alignment has an angular separation from the surface-gap electrode second axis of no greater than about 30 degrees.

Abstract translation: 火花塞包括基本上与纵向第一轴线对准的中心电极和沿着基本上与纵向第一轴线正交并穿过其的表面间隙电极第二轴线与中心电极径向对准的表面间隙接地电极。 中心电极和表面间隙接地电极在其间形成径向火花隙。 火花塞还包括与中心电极径向对准的J形间隙接地电极。 中心电极和J-间隙接地电极之间形成一个轴向火花隙。 J间隙接地电极径向对准与表面间隙电极第二轴的角度间隔不大于约30度。