Continuously variable transmission with integrated torque sensor

US6669588B2 · kind B2 · utility

Assignee

• LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventor

• Jochen Schmid · Welzheim, DE

Key dates

• Filing date: Dec 20, 2001
• Grant date: Dec 30, 2003
• Expiry date: Dec 20, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H61/66272
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A continuously variable transmission including two pairs of conical disks of which one disk of each pair is axially movable toward and away from the other disk and having an endless loop member in the form of a belt that passes around each pair of disks and transfers torque between the pairs of disks. The axially movable conical disk includes a contact pressure chamber to move the disk axially by the application of hydraulic pressure. The movable disk also includes an integrated torque sensor that is operative for controlling the contact pressure between the disks of a pair of disks and the endless loop member as a function of the torque.