Torque monitoring apparatus

US5879253A · kind A · utility

Assignee

• LuK Getriebe-Systeme GmbH · DE

Inventors

• Oswald Friedmann · Lichtenau, DE
• Armin Veil · Bühl, DE

Key dates

• Filing date: Nov 26, 1997
• Grant date: Mar 9, 1999
• Expiry date: Nov 26, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H61/662
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A hydromechanical torque sensor having several plenum chambers can be utilized to transmit torque between the driving and driven parts in the power train of a motor vehicle as well as to make necessary adjustments in a hydraulically adjustable transmission. To this end, the plenum chambers of the torque sensor can be connected to or sealed from each other. The torque sensor and the transmission can receive fluid from discrete sources or from a single source by way of suitable valves.