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:
Apr. 16, 2024
Filed:
Jul. 29, 2021
Federal-mogul Burscheid Gmbh, Burscheid, DE;
Richard Mittler, Burscheid, DE;
Fabian Ruch, Leverkusen, DE;
Federal-Mogul Burscheid GmbH, Burscheid, DE;
Abstract
A piston ring system for an internal combustion engine includes a first compression piston ring (), a second compression piston ring (), and an oil scraper piston ring (). The first compression piston ring () has a first ring body () with a first upper ring flank (), a first lower ring flank (), a first ring inner side (), a first ring outer side (), as well as two first abutting surfaces. A first contact region () of the first ring body () is arranged with a cylinder running surface () above a first piston ring center (). At least one first oil pocket () is arranged below the first contact region () in the circumferential direction. The second compression piston ring () having a second ring body () a second upper ring flank (), a second lower ring flank (), a second ring inner side (), a second ring outer side (), as well as two second abutting surfaces. A second contact region () of the second ring body () is arranged with the cylinder running surface () above or below a second piston ring center (). At least one second oil pocket () is arranged below the second contact region () in the circumferential direction. The oil scraper piston ring () is formed in one piece, two pieces, or three pieces.