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. 20, 1990
Filed:
Feb. 28, 1989
Shigeki Shiraya, Toyota, JP;
Takesi Nakakobara, Toyota, JP;
Hitoshi Ishii, Chita, JP;
Takashi Tomoda, Nagoya, JP;
Kenji Shimoda, Toyota, JP;
Souichi Hayashi, Nagoya, JP;
Zenichiro Kato, Mishima, JP;
Syuichi Ezaki, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An aluminum alloy valve lifter comprises a valve lifter body made of Al-Si (5-20%) type alloy, having silicon average grain diameter of 2 to 40 micrometers, and consisting of a cylindrical portion and a disc portion; an Fe-C type sprayed coating formed on the peripheral surface of the cylindrical portion, containing 0.1% or more of carbon and having a hardness of 300 Hv or more; a wear-resistant chip fixed on the underside of the disc portion; and an adjusting shim set on the upper side of the disc portion.