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：WO2007090019A3

公开(公告)日：2007-08-09

申请号：PCT/US2007/061008

申请日：2007-01-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.

Inventor： LIPPERT, Andreas, M. ,  DRAKE, Michael, C. ,  ZENG, Yangbing

IPC: F02B3/00 ,  F02B5/00

Abstract: A spark-ignition, direct injection internal combustion engine includes a fuel injector effective to produce a fuel spray pattern which is relatively compact at low loads and relatively large at high loads.