公开(公告)号：US09790868B2

公开(公告)日：2017-10-17

申请号：US14452728

申请日：2014-08-06

申请人： Westport Power Inc.

发明人： Jian Huang ,  Sandeep Munshi ,  Gordon P. McTaggart-Cowan ,  David R. Wagner

IPC分类号： F02D19/06 ,  F02B7/08 ,  F02B23/06 ,  F02D19/02 ,  F02D41/00 ,  F02D41/40 ,  F02M21/02 ,  F02D41/38 ,  F02P19/02 ,  F02M45/08 ,  F02M61/08 ,  F02M61/18 ,  F02M43/04 ,  F02M53/04 ,  F02D19/10 ,  F02M21/06 ,  F02B23/10

CPC分类号： F02D19/061 ,  F02B7/08 ,  F02B23/0639 ,  F02B23/0654 ,  F02B23/0669 ,  F02B2023/103 ,  F02D19/024 ,  F02D19/0644 ,  F02D19/0647 ,  F02D19/0692 ,  F02D19/10 ,  F02D41/0027 ,  F02D41/3827 ,  F02D41/403 ,  F02M21/0215 ,  F02M21/0263 ,  F02M21/0269 ,  F02M21/0275 ,  F02M21/06 ,  F02M43/04 ,  F02M45/086 ,  F02M53/046 ,  F02M61/08 ,  F02M61/1813 ,  F02M61/182 ,  F02M61/1826 ,  F02P19/026 ,  Y02T10/125 ,  Y02T10/32 ,  Y02T10/36 ,  Y02T10/44

摘要： An apparatus and method for igniting a gaseous fuel directly introduced into a combustion chamber of an internal combustion engine comprises steps of heating a space near a fuel injector nozzle; introducing a pilot amount of the gaseous fuel in the combustion chamber during a first stage injection event; controlling residency of the pilot amount in the space such that a temperature of the pilot amount increases to an auto-ignition temperature of the gaseous fuel whereby ignition occurs; introducing a main amount of the gaseous fuel during a second stage injection event after the first stage injection event; and using heat from combustion of the pilot amount to ignite the main amount.