Fluid friction clutch

US4610341A · kind A · utility

Assignee

• Sueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG · DE

Inventors

• Kurt Hauser · Markdorf, DE
• Werner Hummel · Titz, DE

Key dates

• Filing date: Jul 3, 1984
• Grant date: Sep 9, 1986
• Expiry date: Jul 3, 2004

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D35/027
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A fluid friction clutch is disclosed which has a working chamber formed by an output component in which a driving disk that is connected with an input component can rotate. For the adjustment of the degree of clutching, the working chamber can be filled by fluid supplied from a reservoir chamber developed as a pressure chamber and connected with the working chamber via a fluid connection, such as a pipe, a borehole, or similar means. This fluid connection is developed in such a way that, by means of admitting compressed air to the reservoir chamber, fluid can be delivered in a controlled manner from said reservoir chamber into the working chamber. A fluid friction clutch of this type has not movable mechanical valve parts, which is particularly advantageous when the compressed air is admitted to the reservoir chamber in surges, which would result in a rapid wear in the case of the known embodiments.