Decoupler for damping a torque transmission between a drive shaft of a motor vehicle and a belt pulley

US9528590B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Hartmut Mende · Bogen, DE
• Jurgen Kroll · Ketsch, DE

Key dates

• Filing date: Nov 28, 2013
• Grant date: Dec 27, 2016
• Expiry date: Nov 28, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2055/366
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A decoupler for damping torque transmission irregularities between a vehicle drive shaft and a belt pulley for driving vehicle auxiliary components. The decoupler includes first and second ramp rings for transmitting torque delivered by the drive shaft to the belt pulley. A spring arrangement provides for axial engagement of the ramp rings. The ramp rings have respective sloped push and pull ramps directed toward the adjacent ramp ring so that in a coasting mode of the vehicle the ramp rings rotate relative to each other and in a vehicle drive mode the ramp rings are drawn toward one another. The decoupler includes a pulley damper for damping torque transmission irregularities to reduce noise emission.