Sealing sleeve for a rotary joint coupling

US10030778B2 · kind B2 · utility

Assignee

• ContiTech Vibration Control GmbH · DE

Inventor

• Uwe Hermanski · Dannenberg, DE

Key dates

• Filing date: Oct 19, 2015
• Grant date: Jul 24, 2018
• Expiry date: Oct 19, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J3/046
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A sealing sleeve seals off a shaft rotating in a rotary joint coupling having a joint outer part and a coupling end facing toward the sealing sleeve. The sealing sleeve includes a first end and a second end. The second end has a larger diameter than the first end and is connected seal tight with the joint outer part and the first end is connected seal tight with the shaft. A first section of the sealing sleeve extends from a lip seal and is in contact engagement with the shaft. The first section has an inner periphery and a plurality of inner grooves distributed over the inner periphery. A second section extends from the first section at the coupling end. The second section has an inner periphery and sawtooth-shaped rib-like projections aligned toward the shaft and the rib-like projections have tips in contact engagement with the shaft.