Patent · US Active

Roller device for a traction mechanism drive of a motor vehicle

US10125850B2 · kind B2 · utility

0Cited by

11References

10Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Oliver Dippold · Nuremberg, DE
Ralf Wagner · Solingen, DE
Armin Gerner · Pommersfelden, DE

Key dates

Filing date	May 13, 2014
Grant date	Nov 13, 2018
Priority date	—
Expiry date	Jul 24, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2213/09
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A roller device for a traction mechanism drive of a motor vehicle, with a roller element for introducing a torque provided via the traction mechanism and a driven shaft for driving an auxiliary unit. The roller device has a magnetic coupling for non-positive torque transfer between the roller element and the driven shaft. The magnetic coupling has a primary-side unit connected to the roller element with a primary magnetic element and a secondary-side unit connected to the driven shaft with a secondary-side magnetic element. The magnetic elements are permanent and/or electromagnetic elements. The non-positive torque transfer is realized by magnetic fields of the primary-side and secondary-side magnetic elements. At least one magnetic element of the two units for changing the magnetic field overlap of the magnetic fields of the primary-side and secondary-side magnetic elements is movably arranged within its unit. A corresponding traction mechanism drive and method are provided.

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