Inwardly tensioning plain compression ring

US10060531B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventor

• Jürgen Mayer · Munich, DE

Key dates

• Filing date: Mar 12, 2013
• Grant date: Aug 28, 2018
• Expiry date: Jan 2, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J15/442
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An inwardly tensioning plain compression ring for sealing a rotating part with respect to a fixed part. The plain compression ring separates a positive pressure region from a low pressure area and has, in reference to the circumference, two opposite ends, designed as a joint or lock and which can be connected. A radial, inner circumferential surface, or at least at an axial circumferential surface of the plain compression ring has a ring shape lubrication groove for accommodating a supplied lubricant which comes from the positive pressure region. The plain compression ring has at least one ring shaped lubrication groove which is not completely circular, but has a closed end and an open end. The open end of the lubrication groove opens into an overflow area which is in flow connection with a leakage area of the joint or the lock.