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. 06, 2018
Filed:
Feb. 04, 2015
Federal-mogul Corporation, Southfield, MI (US);
Bruce Inwood, Fenton, MI (US);
Jeffrey L. Riffe, Troy, MI (US);
Federal-Mogul LLC, Southfield, MI (US);
Abstract
A piston including an abradable coating applied to a round surface of the piston is provided. The shape of the round surface is not greater than 0.1 mm from a circular shape, and thus is relatively inexpensive to machine. As the piston reciprocates in an internal combustion engine, the abradable coating rubs against another component, such as a cylinder liner or wrist pin, to achieve suitable contact geometry, such as an oval, asymmetric, or other non-round shape. Thus, a costly machining process is not required to achieve the desired contact geometry. The abradable coating can also be applied to ring lands, skirt sections, or along pin bores of the piston. The abradable coating can also be applied to a wrist pin or an opening of a connecting rod which receives the wrist pin. The abradable coating can be formed from a polymer-based material or an aluminum-silicon alloy-based material.