Tensioning device with a single securing ring

US12196313B2 · kind B2 · utility

Assignee

• IWIS MOTORSYSTEME GMBH & CO. KG · DE

Inventors

• Franz WACH · Icking, DE
• Florian Bruhn · Türkheim, DE
• Andreas Görmer · Otzberg, DE
• Thomas Baumgartner · Derendingen, CH
• Petra Doll · Antdorf, DE

Key dates

• Filing date: Sep 4, 2020
• Grant date: Jan 14, 2025
• Expiry date: Apr 25, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2007/0893
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A tensioning device, more particularly a hydraulically actuated chain tensioner, for a chain drive of an internal combustion engine, having a tensioner housing, a tensioning piston which is displaceably guided in a piston bore of the tensioner housing and has a piston skirt, a transport securing means for fastening the tensioning piston in the tensioner housing, a adjustment apparatus for incrementally adjusting and limiting the working range of the tensioning piston, and a final position securing means for the captive arrangement of the tensioning piston in the piston bore. The transport securing means, the adjustment apparatus and the final position securing means together have a single securing ring for fastening the tensioning piston in the tensioner housing, the incremental adjustment and limiting of the working range of the tensioning piston and the captive arrangement of the tensioning piston. A chain drive, more particularly a control chain drive, of an internal combustion engine, having such a tensioning device is also provided.