Invention Grant
- Patent Title: High-pressure fuel pump assembly mechanism
- Patent Title (中): 高压燃油泵组装机构
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Application No.: US13125106Application Date: 2009-10-29
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Publication No.: US09410519B2Publication Date: 2016-08-09
- Inventor: Satoshi Usui , Shingo Tamura , Katsumi Miyazaki , Hiroyuki Yamada
- Applicant: Satoshi Usui , Shingo Tamura , Katsumi Miyazaki , Hiroyuki Yamada
- Applicant Address: JP Hitachinaka-shi
- Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee Address: JP Hitachinaka-shi
- Agency: Crowell & Moring LLP
- Priority: JP2008-279041 20081030
- International Application: PCT/JP2009/068617 WO 20091029
- International Announcement: WO2010/050569 WO 20100506
- Main IPC: F02M59/44
- IPC: F02M59/44 ; F04B1/04 ; F02M39/02 ; F02M59/10 ; F02M59/36

Abstract:
A high-pressure fuel pump includes a pump housing formed with a recess, a cylinder combined with the pump housing to define the recess as a pressurizing chamber, a holder securing the cylinder to the pump housing, and a plunger sliding against the cylinder to pressurize fluid in the pressurizing chamber. The holder includes an outer cylindrical surface portion fitted to an attachment fitting hole of an engine block of an internal combustion engine, and a cylindrical fitting portion fitted to an outer circumference of the cylinder. The outer cylindrical surface portion and the cylindrical fitting portion are formed in a single piece resulting from machining one and the same member.
Public/Granted literature
- US20110253109A1 High-Pressure Fuel Pump Public/Granted day:2011-10-20
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