Traction-means tensioning device having a securing element, and internal combustion engine having such a traction-means tensioning device

US9133916B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Dominik Hofmann · Baunach, DE
• Peter Tyroller · Adelschlag, DE

Key dates

• Filing date: Oct 28, 2011
• Grant date: Sep 15, 2015
• Expiry date: Feb 23, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2007/0878
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A traction-means tensioning device having a housing that contains aluminum as a material, into which a slide sleeve is inserted axially immovably, within which a hydraulically actuatable, axially extendable piston is supported; a pressure chamber being provided between the piston, which is made of steel, and the slide sleeve, which is made of steel, that can be filled with a hydraulic medium; a securing element engaging on the slide sleeve and the housing to fix the axial position of the slide sleeve relative to the housing, the securing element being provided with an elongate fastening portion that is configured to be fixed in position in the housing and is provided at a housing-distal end with a head that is in form-fitting contact with the slide sleeve. Also, an internal combustion engine having such a traction-means tensioning device and a traction means.