发明授权
- 专利标题: Direct fuel injection engine
- 专利标题(中): 直接燃油喷射发动机
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申请号: US10788324申请日: 2004-03-01
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公开(公告)号: US06814046B1公开(公告)日: 2004-11-09
- 发明人: Koji Hiraya , Eiji Takahashi , Hirofumi Tsuchida , Isamu Hotta , Akihiko Kakuho
- 申请人: Koji Hiraya , Eiji Takahashi , Hirofumi Tsuchida , Isamu Hotta , Akihiko Kakuho
- 优先权: JP2003-121610 20030425; JP2003-154056 20030530
- 主分类号: F02B300
- IPC分类号: F02B300
摘要:
A direct fuel injection engine basically comprises a combustion chamber, a piston with a cavity, a fuel injection valve, a spark plug and a control unit. The fuel injection valve is configured and arranged to directly inject a fuel stream into the combustion chamber in a substantially constant hollow circular cone shape in a stratified combustion region. The control unit is configured to ignite a first air-fuel mixture formed directly after the fuel stream is injected and prior to a majority of the fuel stream striking the cavity when the direct fuel injection engine is operating in a low-load stratified combustion region, and to ignite a second air-fuel mixture formed after a majority of the fuel stream is guided by the cavity toward an upper portion of the combustion chamber above the cavity when the direct fuel injection engine is operating in a high-load stratified combustion region.
公开/授权文献
- US20040211388A1 DIRECT FUEL INJECTION ENGINE 公开/授权日:2004-10-28
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