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Title:
COMBUSTION PRESSURE SENSOR
Document Type and Number:
WIPO Patent Application WO/2016/152429
Kind Code:
A1
Abstract:
Provided is a combustion pressure sensor attached to a functional part installed in a combustion chamber of an internal combustion engine, the combustion pressure sensor being characterized in that: a pressure receiving member that forms a pressure receiving surface for receiving combustion pressure and a pressure detection element that detects pressure from the pressure receiving surface are supported by a housing; the combustion pressure sensor is attached to the functional part by joining a connection member provided in at least one of the pressure receiving member and the housing to the functional part; and the connection member is configured from a joining portion joined to the functional part and a distortion absorbing portion that reduces the influence of distortion of the joining portion on the pressure receiving member or the housing. This configuration allows for a combustion pressure sensor that is capable of precise measurement of pressure since failures occurring in the pressure transmission system are prevented by the provision of a means for minimizing distortion of the sensor case of the combustion pressure sensor.

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Inventors:
TAKAHASHI KAZUO (JP)
IWASHITA TAKASHI (JP)
Application Number:
PCT/JP2016/056500
Publication Date:
September 29, 2016
Filing Date:
March 02, 2016
Export Citation:
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Assignee:
CITIZEN FINEDEVICE CO LTD (JP)
CITIZEN HOLDINGS CO LTD (JP)
International Classes:
G01L23/22; F02D35/00
Domestic Patent References:
WO2014034641A12014-03-06
WO2013118542A12013-08-15
Foreign References:
JP2010242578A2010-10-28
JP2010509574A2010-03-25
JP2006300046A2006-11-02
JP2003232268A2003-08-22
JP2002243571A2002-08-28
JP2001330529A2001-11-30
JP2000155062A2000-06-06
Other References:
See also references of EP 3276325A4
Attorney, Agent or Firm:
FURUBE, Jiro et al. (JP)
Jiro Furube (JP)
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