Invention Grant
- Patent Title: Fluid pressure pulsation damper mechanism and high-pressure fuel pump equipped with fluid pressure pulsation damper mechanism
- Patent Title (中): 流体压力脉动阻尼机构和配有流体压力脉动阻尼机构的高压燃油泵
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Application No.: US12124084Application Date: 2008-05-20
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Publication No.: US08366421B2Publication Date: 2013-02-05
- Inventor: Akihiro Munakata , Hideki Machimura , Hideaki Yamauchi , Daisuke Kitajima , Masashi Nemoto
- Applicant: Akihiro Munakata , Hideki Machimura , Hideaki Yamauchi , Daisuke Kitajima , Masashi Nemoto
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2007-133612 20070521
- Main IPC: F04B11/00
- IPC: F04B11/00 ; F02M37/00
Abstract:
A fluid pressure pulsation damper mechanism includes: a metal damper having two metal diaphragms joined together with a hermetic seal for forming a sealed spacing filled with a gas between the two metal diaphragms, an edge part overlapping along outer peripheries thereof, a main body having a damper housing in which the metal damper is accommodated, and a cover attached to the main body to cover the damper housing and isolate the damper housing from outside air.
Public/Granted literature
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