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Patent Searching and Data


Title:
DIAPHRAGM AND PULSATION DAMPER USING SAME
Document Type and Number:
WIPO Patent Application WO/2016/093054
Kind Code:
A1
Abstract:
A diaphragm has a flange and a protrusion which is provided so as to protrude to one side of the flange. The protrusion has at least two annular curved sections, one of which is provided on a ceiling section having a flat surface-like shape when pressure on the outer wall side of the protrusion and pressure on the inner wall side of the protrusion are the same, and the other of which is provided on the outside radially of the ceiling section. The at least two annular curved sections are each formed curved in a cross-section of the diaphragm obtained by cutting the diaphragm by an imaginary plane including the centerline of the diaphragm. The centers of curvature of the curved sections are located at different positions on the side opposite the side from which the protrusion protrudes. The diaphragm is formed from a thin metallic sheet.

Inventors:
TOMITSUKA MASAHIRO (JP)
YOSHIDA SHIN (JP)
SUDO MAKOTO (JP)
NANBU AKINORI (JP)
HISHINUMA OSAMU (JP)
YAMADA HIROATSU (JP)
Application Number:
PCT/JP2015/082936
Publication Date:
June 16, 2016
Filing Date:
November 24, 2015
Export Citation:
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Assignee:
FUJIKOKI CORP (JP)
DENSO CORP (JP)
International Classes:
F02M59/44; F02M59/36
Foreign References:
JP2007138805A2007-06-07
JP2003254191A2003-09-10
JP2004138071A2004-05-13
JP2003083199A2003-03-19
US5505181A1996-04-09
JP2012197732A2012-10-18
Attorney, Agent or Firm:
Patent Corporate Body Dai-ichi Kokusai Tokkyo Jimusho (JP)
The first international patent firm of a patent business corporation (JP)
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