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:
Jun. 10, 2008
Filed:
Jan. 07, 2005
Hirofumi Michioka, Aichi, JP;
Toshihiro Takami, Toyota, JP;
Kazunari Takenaka, Toyota, JP;
Takashi Kurauchi, Toyota, JP;
Norihiko Tomioka, Toyota, JP;
Isao Katou, Okaya, JP;
Hiroshi Muraki, Lake City, MO (US);
Shunya Hattori, Yamagata, JP;
Giichiro Saito, Yamagata, JP;
Kiyoharu Oizumi, Sagae, JP;
Hirofumi Michioka, Aichi, JP;
Toshihiro Takami, Toyota, JP;
Kazunari Takenaka, Toyota, JP;
Takashi Kurauchi, Toyota, JP;
Norihiko Tomioka, Toyota, JP;
Isao Katou, Okaya, JP;
Hiroshi Muraki, Lake City, MO (US);
Shunya Hattori, Yamagata, JP;
Giichiro Saito, Yamagata, JP;
Kiyoharu Oizumi, Sagae, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Teikoku Piston Ring Co., Ltd., Chiyoda-ku, Tokyo, JP;
Teipi Industry Co., Ltd., Sagae-shi, JP;
Abstract
A cylinder liner for insert casting and a method for manufacturing the cylinder liner are provided. The cylinder liner and the method are applied to cylinder blocks and improve the adherence and the bonding strength with a cylinder block material in a favorable manner. The cylinder liner satisfies the following requirements: (i) the height of projectionsP is in a range between 0.5 mm and 1.0 mm, inclusive; (ii) the number of the projectionsP is in a range between 5 and 60, inclusive, per cmon the outer circumferential surface; (iii) the area ratio of regions each encircled by a contour line of a height of 0.4 mm is in a range between 10% and 50%, inclusive; (iv) the area ratio of regions each encircled by a contour line of a height of 0.2 mm is in a range between 20% and 55%, inclusive; (v) the region each encircled by a contour line of the height of 0.4 are independent from each other; and (vi) the area of the regions each encircled by a contour line of the height of 0.4 mm is in a range between 0.2 mmand 3.0 mm, inclusive.