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:
Feb. 24, 2004
Filed:
Oct. 17, 2002
Katsumasa Nozaki, Kanagawa, JP;
Hiroshi Fukuda, Kanagawa, JP;
Motoi Hashiba, Kanagawa, JP;
Shinji Tsuchiya, Kanagawa, JP;
Kioritz Corporation, Tokyo, JP;
Abstract
There is provided a cylinder for an internal combustion engine, wherein the inner wall surface of the cylinder which constitutes a slide-contacting surface for the piston is treated with a metal plating which is minimal in burden to the environment, excellent in abrasion resistance and hard enough to endure the practical use of the cylinder, thus making it possible to dispense with a finishing work such as honing work. A method for treating the inner wall surface of the cylinder so as to obtain such a cylinder is also provided. The cylinder as well as the method are featured in that the inner wall surface of the cylinder which is adapted to be slidably contacted with a piston is electroplated in a plating bath comprising an iron plating solution containing a boron compound such as trimethylamine borane, dimethylamine borane, etc.