Patent · US Active

Torsional vibration damper arrangement

US8075410B2 · kind B2 · utility

6Cited by

8References

22Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Cora Carlson · Dittelbrunn, DE
Andreas Orlamünder · Schweinfurt, DE
Thomas Dögel · Bad Kissingen, DE

Key dates

Filing date	Dec 4, 2007
Grant date	Dec 13, 2011
Priority date	—
Expiry date	Sep 1, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2123
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Disclosed is a torsional vibration damper arrangement, especially for the drive train of a vehicle, including a primary side and a secondary side which is coupled to the primary side by a damper fluid arrangement in order for the primary side and the secondary side to rotate about an axis of rotation and rotate relative to one another. The damper fluid arrangement encompasses a first damper fluid that has low compressibility and transmits torque between the primary side and the secondary side as well as a second damper fluid which is more compressible and is loaded when the pressure of the first fluid increases.; The torsional vibration damper arrangement is characterized in that a volume containing the second damper fluid is disposed outside the primary side and outside the secondary side and does not rotate about the axis of rotation along with the primary side and the secondary side.

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