Compression piston ring

US9458934B2 · kind B2 · utility

Assignee

• Federal-Mogul Burscheid GmbH · DE

Inventor

• Peter Esser · Kürten, DE

Key dates

• Filing date: Dec 4, 2009
• Grant date: Oct 4, 2016
• Expiry date: Dec 4, 2029

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J9/20
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A compression piston ring for an internal combustion engine, comprising a sliding surface formed by two ridges, upper and lower flank surfaces, and an inner circumferential surface, wherein the lower ridge runs at least in some regions parallel to the counter sliding surface and the upper ridge is designed as a taper faced Napier element.