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. 07, 2017
Filed:
Apr. 20, 2012
John Lloyd Beasley, Chicago, IL (US);
John Lloyd Beasley, Chicago, IL (US);
International Engine Intellectual Property Company, LLC., Lisle, IL (US);
Abstract
A device and method for preventing and removing carbon deposit build-up on a piston/cylinder assembly of an engine, including a diesel engine, is disclosed. The device includes a cylinder having an inner sleeve for receiving a piston, a carbon scraping ring positioned on the cylinder sleeve, the carbon scraping ring including an inner surface, and an abradable coating applied to the inner surface of the carbon scraping ring providing a wearable surface between the piston and the cylinder sleeve. The abradable coating has a wearable surface, which conforms to the shape created by the movement of the piston and the cylinder sleeve and carbon scraping ring, creating a substantially zero clearance fit between the piston and the carbon scraping ring. The clearance may reduce oil consumption and improve sealing of the cylinder and piston, thereby reducing blow-by.