The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2010
Filed:
Jul. 06, 2006
Noritaka Miyamoto, Toyota, JP;
Toshihiro Takami, Toyota, JP;
Masaki Hirano, Toyota, JP;
Kouhei Shibata, Toyota, JP;
Nobuyuki Yamashita, Shiojiri, JP;
Toshihiro Mihara, Matsumoto, JP;
Giichiro Saito, Yamagata, JP;
Masami Horigome, Yamagata, JP;
Takashi Sato, Yamagata, JP;
Noritaka Miyamoto, Toyota, JP;
Toshihiro Takami, Toyota, JP;
Masaki Hirano, Toyota, JP;
Kouhei Shibata, Toyota, JP;
Nobuyuki Yamashita, Shiojiri, JP;
Toshihiro Mihara, Matsumoto, JP;
Giichiro Saito, Yamagata, JP;
Masami Horigome, Yamagata, JP;
Takashi Sato, Yamagata, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A cylinder liner for insert casting used in a cylinder block is disclosed. The cylinder liner has an outer circumferential surface, and upper, middle, and lower portions with respect to an axial direction of the cylinder liner. A high thermal conductive film is formed in a section of the outer circumferential surface that corresponds to the upper portion, and a low thermal conductive film is formed in a section of the outer circumferential surface that corresponds to the lower portion. The high thermal conductive film and the low thermal conductive film are laminated in a section of the outer circumferential surface that corresponds to the middle portion, thereby forming a laminated film portion. As a result, temperature difference along the axial direction of the cylinder is reduced.