Crowell & Moring LLP
High pressure fuel supply pump for internal combustion engine
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.
Hitachi, Ltd. Hitachi Car Engineering Co., Ltd.
F F F F F F F F F
F04B F02M F02M F04B F02M F04B F02M F02M F04B
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Hiroyuki Yukio Masami Atsuji Shigenori
Yamada Takahashi Abe Saito Tahara