Valve for an exhaust gas line of an internal combustion engine

US9752687B2 · kind B2 · utility

Assignee

• BorgWarner Esslingen GmbH · DE

Inventors

• Bernd Bareis · Mutlangen, DE
• Julian Haselmaier · Bempflingen, DE
• Patrick Wilde · Weilheim, DE

Key dates

• Filing date: Aug 26, 2015
• Grant date: Sep 5, 2017
• Expiry date: Sep 4, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An exhaust line valve for an internal combustion engine. A closure body is arranged in a duct of the valve and is fastened to a shaft. The closure body when closed separates upstream and downstream duct sections. Two projections extend into the duct, each having a valve seat pointing in an opposite direction of the duct. By pivoting the closure body from its closed position, the sealing surfaces of the closure body are raised from their respective valve seats. A polymer seal is arranged on the valve seats and in the closed position the polymer seal sealingly contacts the associated sealing surface of the closure body. A circumferential surface of the shaft or the closure body is located in an edge region of the closure body. The polymer seal contacts in a sealing manner at least a region of the circumferential surface facing the upstream section of the duct.