Patent · US Active

Oil cavity for pendulum element (roller) of a centrifugal pendulum

US8800731B2 · kind B2 · utility

4Cited by

10References

8Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Dominique Engelmann · Offendorf, FR
Markus Werner · Zweibrücken, DE

Key dates

Filing date	Feb 8, 2010
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Aug 26, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2128
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A centrifugal pendulum in a torsional vibration damper of a drive train of a motor vehicle with a pendulum flange rotating about a rotation axis and several pendulum masses distributed over the circumference, disposed on the latter in a manner capable of swinging. When the internal combustion engine of the drive train induces massive rotational irregularities resulting from high vibration angles in these arrangements, the pendulum masses can be deflected more strongly relative to the pendulum flange and strike the provided swing motion limits. To prevent hard hits of the pendulum masses on the pendulum flanges, it is proposed to dampen the impact areas by hydraulic means and hence to achieve a soft impact.

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