ENGINE COMBUSTION CHAMBER STRUCTURE

Title:

ENGINE COMBUSTION CHAMBER STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2013/080389

Kind Code:

A1

Abstract:

Provided is an engine combustion chamber structure wherein the thermal efficiency of an engine and fuel consumption are improved. An engine combustion chamber structure is provided with a heat-insulating member (1) on the inner wall of an engine constituent member (21) which constitutes an engine combustion chamber. The heat-insulating member (1) contains a heat-insulating porous layer (3) formed by ceramics, and a surface dense layer (2) formed by ceramics and formed on the surface of the heat-insulating porous layer (3). The surface dense layer (2) of the heat-insulating member (1) has a porosity of 5% or less and the heat-insulating porous layer (3) has a greater porosity than the porosity of the surface dense layer (2).

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Inventors:

TOMITA TAKAHIRO (JP)
ICHIMURA MIKIYA (JP)
HASHIMOTO SHIGEHARU (JP)

Application Number:

PCT/JP2011/078477

Publication Date:

June 06, 2013

Filing Date:

December 08, 2011

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Assignee:

NGK INSULATORS LTD (JP)
TOMITA TAKAHIRO (JP)
ICHIMURA MIKIYA (JP)
HASHIMOTO SHIGEHARU (JP)

International Classes:

F02F3/10; F01L3/04; F02B23/00; F02F1/00; F02F1/24

Foreign References:

JPS61169241A	1986-07-30
JP2008533349A	2008-08-21
JPH03281936A	1991-12-12
JPS61268850A	1986-11-28

Attorney, Agent or Firm:

WATANABE, Kazuhira (JP)
Ippei Watanabe (JP)

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Claims:

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