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Patent Searching and Data


Title:
PISTON
Document Type and Number:
WIPO Patent Application WO/2018/198898
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a piston which is suitable for stable production, and which is provided with a heat insulating layer having good heat insulation properties, thermal responsiveness and adhesion properties. In order to resolve the abovementioned problems, this piston is characterized by being provided with a base material, a joining layer formed on a surface of the base material, and a heat insulating layer formed on a surface of the joining layer, wherein an insert material having a lower melting point than the base material is diffused in the base material to form the joining layer, and the insert material is diffused in the heat insulating layer to form the joining layer.

Inventors:
NONOMURA Kazuya (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
SUGIMOTO Ittou (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
OKIZAKI Naoya (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
TAKAHASHI Norikazu (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
SHISHIDO Keitaro (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
Application Number:
JP2018/015963
Publication Date:
November 01, 2018
Filing Date:
April 18, 2018
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
F02F3/12; B23K20/00; F02B77/11; F02F3/00; F16J1/01
Domestic Patent References:
WO2016076341A12016-05-19
WO2012029789A12012-03-08
WO2015016122A12015-02-05
Foreign References:
JP2007245219A2007-09-27
JPS63220987A1988-09-14
JP2010247219A2010-11-04
Attorney, Agent or Firm:
POLAIRE I.P.C. (13-11, Nihonbashikayabacho 2-chome Chuo-k, Tokyo 25, 〒1030025, JP)
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