Invention Grant
- Patent Title: High pressure fuel supply pump for internal combustion engine
- Patent Title (中): 用于内燃机的高压燃油泵
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Application No.: US12412071Application Date: 2009-03-26
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Publication No.: US07707996B2Publication Date: 2010-05-04
- Inventor: Hiroyuki Yamada , Shigenori Tahara , Atsuji Saito , Yukio Takahashi , Masami Abe
- Applicant: Hiroyuki Yamada , Shigenori Tahara , Atsuji Saito , Yukio Takahashi , Masami Abe
- Applicant Address: JP Tokyo JP Hitachinaka-shi
- Assignee: Hitachi, Ltd.,Hitachi Car Engineering Co., Ltd.
- Current Assignee: Hitachi, Ltd.,Hitachi Car Engineering Co., Ltd.
- Current Assignee Address: JP Tokyo JP Hitachinaka-shi
- Agency: Crowell & Moring LLP
- Priority: JP11-031619 19990209; JP11-129903 19990511
- Main IPC: F02M37/04
- IPC: F02M37/04 ; F02M37/06
Abstract:
An intake valve automatically opened and closed by pressure of a pressuring chamber is provided in a fuel intake passage, the intake valve is pushed to open by a plunger of an electromagnetic plunger mechanism, pulling-in operating timing of the plunger is controlled according to the operating condition of an internal combustion engine, and opening time of the intake valve during compression stroke of a pump is controlled to make discharge flow-rate of high pressure fuel variable.
Public/Granted literature
- US20090178652A1 High Pressure Fuel Supply Pump for Internal Combustion Engine Public/Granted day:2009-07-16
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