Invention Grant
- Patent Title: High pressure pump
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Application No.: US16096442Application Date: 2017-03-30
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Publication No.: US10883463B2Publication Date: 2021-01-05
- Inventor: Shinichiro Koshimoto , Masaharu Nakaoka , Shinobu Oikawa
- Applicant: DENSO CORPORATION
- Applicant Address: JP Kariya
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2016-90327 20160428
- International Application: PCT/JP2017/013165 WO 20170330
- International Announcement: WO2017/187876 WO 20171102
- Main IPC: F02M55/04
- IPC: F02M55/04 ; F02M59/36 ; F02M59/46 ; F02M55/00 ; F02M59/44

Abstract:
A housing-includes a pressurizing chamber. A plunger is moved to increase and decrease a volume of the pressurizing chamber, so that the plunger can pressurize the fuel in the pressurizing chamber. A fuel chamber forming portion is placed on a radially outer side of the plunger and forms a fuel chamber that is communicated with the pressurizing chamber. A pulsation damper is placed in an inside of the fuel chamber and is operable to reduce pressure pulsation of the fuel in the fuel chamber. Fixable portions are placed on a radially outer side of the plunger while each of the fixable portions includes a receiving through-hole. The fixable portions are fixed to an engine with bolts, which are provided to correspond with the receiving through-holes, respectively. The fuel chamber forming portion is displaced from axes of the receiving through-holes.
Public/Granted literature
- US20190145364A1 HIGH PRESSURE PUMP Public/Granted day:2019-05-16
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