Invention Application
- Patent Title: High-Pressure Fuel Supply Pump Having Electromagnetically-Driven Intake Valve
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Application No.: US15705660Application Date: 2017-09-15
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Publication No.: US20180066619A1Publication Date: 2018-03-08
- Inventor: Satoshi USUI , Kenichiro TOKUO , Tatsuo KAWANO , Masahiko HAYATANI , Shingo TAMURA , Hiroyuki YAMADA , Katsumi MIYAZAKI
- Applicant: Hitachi Automotive Systems, Ltd.
- Priority: JP2010-232072 20101015
- Main IPC: F02M59/36
- IPC: F02M59/36 ; F04B53/10 ; F04B7/00 ; F02M63/00 ; F02M37/04 ; F02M37/00

Abstract:
A fuel pump includes an intake valve unit which is provided between a low-pressure chamber and a pressurizing chamber. The intake valve unit includes an intake valve configured to move in an axial direction of the intake valve unit and a valve stopper arranged between the intake valve and the pressurizing chamber. A plurality of fuel passages configured to allow fuel to communicate between the low-pressure chamber and the pressurizing chamber are formed on a radially outward of an outer peripheral surface of the valve stopper.
Public/Granted literature
- US10753357B2 High-pressure fuel supply pump having electromagnetically-driven intake valve Public/Granted day:2020-08-25
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