Crowell & Moring LLP
High-pressure fuel supply pump having electromagnetically-driven intake valve
A high-pressure fuel supply pump includes a pressurizing chamber, a piston plunger, and an electromagnetically-driven intake valve mechanism. The piston plunger reciprocates within the pressurizing chamber. The electromagnetically-driven intake valve mechanism is provided at an inlet of the pressurizing chamber. The electromagnetically-driven intake valve mechanism includes an anchor which pulls a plunger rod, a fixed core which attracts the anchor, and a yoke in which inner peripheral part has the fixed core and the anchor. The fixed core is fixed to a bottom part of the yoke. A through hole is formed at a bottom part of the fixed core.
Hitachi Automotive Systems, Ltd.
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F16K F04B F04B F02M F16K F04B F04B F02M H02K F02M F02M Y10T F02M F16K F02M F04B F02M F16K F04B
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Masahiko Tatsuo Hiroyuki Katsumi Kenichiro Satoshi Shingo
Hayatani Kawano Yamada Miyazaki Tokuo Usui Tamura