Patent · US Active

Camshaft

US7597078B2 · kind B2 · utility

5Cited by

2References

6Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Peter Kroos · Rutesheim, DE
Markus Lettmann · Kieselbronn, DE
Falk Schneider · Neuerburg, DE

Key dates

Filing date	Dec 21, 2006
Grant date	Oct 6, 2009
Priority date	—
Expiry date	Nov 28, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49293
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a camshaft (1) having cams (3 and 4) rotatable with respect to one another about the camshaft axis (2) over limited circumferential angles, whereby an inside shaft (5) and an outside shaft (6) are arranged coaxially one inside the other. The cams (3 and 4) that are rotatable with respect to one another each consist of first cams (3) and second cams (4), whereby the first cams (3) are fixedly connected to the inside shaft (5) and the second cams (4) are fixedly connected to the outside shaft (6), each by means of a fixation device (8). It is essential to this invention that the first cams (3) each have a first through-bore (11) which is aligned with a respective second through-bore (12) in the inside shaft (5) when the first cam (3) is installed. In addition, the fixation device (8) is formed by two essentially identical fixation pins (10 and 10′) with respect to their axial longitudinal extent. The present invention also relates to a method for manufacturing such a camshaft (1).

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