Invention Grant
- Patent Title: Fuel pump
- Patent Title (中): 燃油泵
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Application No.: US12718395Application Date: 2010-03-05
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Publication No.: US08678779B2Publication Date: 2014-03-25
- Inventor: Takashi Yoshizawa , Donald J. McCune , Harsha Badarinarayan , Akira Inoue
- Applicant: Takashi Yoshizawa , Donald J. McCune , Harsha Badarinarayan , Akira Inoue
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C.
- Main IPC: F04B49/22
- IPC: F04B49/22

Abstract:
A high pressure fuel pump for use with a direct injection engine having a housing which defines a pump chamber. A port is formed in the housing which fluidly connects a fuel in the passageway with the pump chamber. An elongated valve is movably mounted within the housing between an open and a closed position. In its open position, the inlet passageway is fluidly connected with the pump chamber while, conversely, in the closed position the fuel valve blocks the fluid flow between the inlet passageway and the pump chamber. A circuit controls the deceleration of the valve to reduce pump noise.
Public/Granted literature
- US20110217186A1 FUEL PUMP Public/Granted day:2011-09-08
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