Exhaust gas flap

US11333084B2 · kind B2 · utility

Assignee

• Purem GmbH · DE

Inventors

• Annika Zeumer · Wernau, DE
• Steffen Schmitt · Ditzingen, DE

Key dates

• Filing date: Sep 23, 2019
• Grant date: May 17, 2022
• Expiry date: Sep 23, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2240/36
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An exhaust gas flap includes a flap tube (12), a flap diaphragm (16), in an interior of the flap tube on a pivot shaft (14) rotatable about a pivot axis (A), a pivot drive (30) for the pivot shaft (14) and a coupling device (36) coupling the pivot shaft to a drive shaft (34). The coupling device includes a first coupling area (42) rotationally coupled, positive-lockingly meshed with the drive shaft and a second coupling area (44) rotationally coupled, positive-lockingly meshed with the pivot shaft. A biasing element (58) is supported in relation to the coupling device and in relation to one shaft of the drive shaft and the pivot shaft. The coupling device is axially prestressed, by the prestressing element, away from the one shaft along in the direction of the pivot axis and is prestressed about the pivot axis in relation to the one shaft.