Patent · US Expired

Method of speed control of a friction clutch in a drive train and a drive engine and drive unit for execution of the method

US5845755A · kind A · utility

3Cited by

10References

8Claims

0Family size

Assignee

Voith Turbo GmbH & Co. KG · DE

Inventors

Georg Wahl · Rodenbach, DE
Friedrich Kurzay · Crailsheim, DE
Thomas Rogner · Kirchberg, DE
Dieter Proger · Crailsheim, DE

Key dates

Filing date	Apr 22, 1996
Grant date	Dec 8, 1998
Priority date	—
Expiry date	Apr 22, 2016

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D25/0638
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A method and device for speed control of a friction clutch in a drive unit having a drive engine and in which the friction clutch includes at least two clutch parts that can be pressed together for purposes of torque transfer. The first clutch part is coupled at least indirectly to the drive engine and the second clutch part can be coupled to the drive engine via the first clutch part. The contact force for the clutch parts required for torque transfer is automatically applied hydraulically at least on achieving the idling speed of the drive engine by rotational pressure of a rotating ring of hydraulic fluid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.