Patent · US Active

Method for the production of a drop-forged balancing shaft

US8327542B2 · kind B2 · utility

2Cited by

10References

3Claims

0Family size

Assignee

Schaeffler KG · DE

Inventors

Siegfried Tisch · Gerlingen, DE
Klaus Weigand · Steinau an der Straße, DE

Key dates

Filing date	Mar 19, 2008
Grant date	Dec 11, 2012
Priority date	—
Expiry date	Sep 5, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49474
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention relates to a method for the production of a drop-forged balancing shaft for a mass balancing gear of an internal combustion engine. The balancing shaft has an unbalanced plane formed by the rotational axis thereof and an eccentric mass center of gravity, and at least one bearing journal, the outer lateral surface of which serves as a track for a rolling bearing supporting the balancing shaft in the internal combustion engine. To this end, the balancing shaft is to be forged in a forging die having a parting plane extending in the direction of the rotational axis and rotated in relation to the unbalanced plane.

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