Title:
MEMBER FOR INTERNAL COMBUSTION ENGINE AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2020056352
Kind Code:
A
Abstract:
To provide a member for an internal combustion engine which can improve the reduction of a heat transmission rate (improvement of heat insulation) more than before while using a heat insulation film composed of an anode oxide film.SOLUTION: This member (M) for an internal combustion engine comprises a base body (1) composed of an aluminum alloy, and having a heat receiving face constituting a part of a combustion chamber inner wall face of the internal combustion engine, and a heat insulation film (2) formed on the heat receiving face. The heat insulation film has a horizontal porous layer (2) composed of tubular anode oxide aluminum extending to a direction along the heat receiving face. The horizontal porous layer has a groove (12) having sidewall faces (121, 122) extending to a substantially-normal direction at a treated face of the base body, and is formed by applying anode oxide treatment on the treated face. Since input heat from a combustion gas is inputted from a direction intersecting with an extension direction of the horizontal porous layer, the heat insulation film having the horizontal porous layer exhibits high heat insulation performance (low heat transmission performance).SELECTED DRAWING: Figure 1
Inventors:
HORIE TOSHIO
HOJO HIROSHI
FUKUI KENJI
SHIMIZU FUMIO
NISHIKAWA NAOKI
HOJO HIROSHI
FUKUI KENJI
SHIMIZU FUMIO
NISHIKAWA NAOKI
Application Number:
JP2018187018A
Publication Date:
April 09, 2020
Filing Date:
October 02, 2018
Export Citation:
Assignee:
TOYOTA CENTRAL RES & DEV
TOYOTA MOTOR CORP
TOYOTA MOTOR CORP
International Classes:
F02F1/00; C25D11/04; F01L1/04; F02B23/00; F02B77/11; F02F1/18; F02F3/12; F16J10/00
Attorney, Agent or Firm:
Morioka Masayuki
Sansui International Patent Office
Sansui International Patent Office