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:
Oct. 03, 2023
Filed:
Mar. 11, 2021
Dana Automotive Systems Group, Llc, Maumee, OH (US);
Martin Mockenhaupt, Buffalo Grove, IL (US);
Dana Automotive Systems Group, LLC, Maumee, OH (US);
Abstract
A leak-proof sealing system is provided for sealing combustion chambers of an automotive engine. The system comprises a head gasket compressed between an engine block and a cylinder head, the head gasket comprising a gasket plate, a plurality of circular combustion apertures positioned on the gasket plate, the plurality of circular combustion apertures configured to register with a plurality of cylinder bore openings of the engine block, a plurality of bolt apertures distributed on the gasket plate, the plurality of bolt apertures alternating with the plurality of circular combustion apertures, and a plurality of wire rings, each wire ring extending circumferentially around a corresponding circular combustion aperture of the plurality of circular combustion apertures, where a surface of each wire ring includes a selective metal coating on sections of the wire ring spanning between two consecutive bolt apertures of the plurality of bolt apertures, and wherein sections of the wire ring located closer to the plurality of bolt apertures are devoid of metal coating. In one example, the system helps increase stress locally and reduces fatigue lift motion, thereby improving sealing and engine durability.