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. 22, 2019
Filed:
Sep. 30, 2016
Eberspächer Exhaust Technology Gmbh & Co. KG, Neunkirchen, DE;
Annika Stark, Wernau, DE;
Steffen Schmitt, Ostfildern, DE;
Markus Birgler, Wernau, DE;
Stefanos Varelis, Leinfelden, DE;
Matthias Grün, Altbach, DE;
Milijenko Novosel, Stuttgart, DE;
Eberspächer Exhaust Technology GmbH & Co. KG, Neunkirchen, DE;
Abstract
An electric exhaust gas valve device () controls a flow cross section () of an exhaust pipe () of an exhaust system () of an internal combustion engine. The valve device includes an electric drive () driving a driven shaft () rotatingly about an axis of rotation (). An exhaust gas valve () has a drive shaft () aligned coaxially to and rotatable about the axis of rotation for controlling the cross section. A coupling device () transmits torques between the driven shaft and the drive shaft and includes a connection element connected to the drive shaft, a transmission element () connected to the driven shaft and the connection element with a prestressing spring () supported axially on the connection element and/or on the drive shaft as well as on the transmission element and axially driving the transmission element against the driven shaft to reduce thermal load.