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:
Jul. 13, 2021
Filed:
Mar. 20, 2018
Wabco Gmbh, Hannover, DE;
WABCO GmbH, Hannover, DE;
Abstract
An actuator () for an automated or automatic transmission has a cylinder housing (), a piston unit (), and a piston rod (). The piston unit () is coupled to the piston rod () and is arranged movably in the cylinder housing () along a longitudinal axis (). The piston unit () separates two pressure chambers () of variable volume in the cylinder housing (). The pressure chambers are configured to load the piston unit () with compressed air on both sides. The two pressure chambers () are connected to a valve unit () for switching between pressurization and purging of each of the two pressure chambers (). An end stop clamping device for damping at least one end stop of the piston unit () is arranged in the actuator (). A pneumatically and a mechanically operating damping stage are provided improve the end stop damping device.