Patent · US Expired

Torsional vibration damping apparatus

US6883487B2 · kind B2 · utility

3Cited by

3References

18Claims

0Family size

Assignee

LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

Steffen Lehmann · Ettlingen, DE
Christian Fechler · Karlsruhe, DE

Key dates

Filing date	Dec 16, 2003
Grant date	Apr 26, 2005
Priority date	—
Expiry date	Dec 16, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2184
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A torsional vibration damping apparatus, especially a web damper for mounting on a crankshaft of a piston engine, particularly an internal combustion engine for suppression of natural torsion frequencies from crankshafts can now be economically produced. The apparatus comprises a housing fastened to the engine crankshaft to which at least one rotary mass is coupled with spring elements disposed between the housing and the rotary mass allowing the apparatus to be pre-assembled. Advantageously, multiple parts of the torsional vibration damping apparatus, such as the housing can now be fabricated from more economic sheet metal in place of more costly cast parts.

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