Patent · US Active

Adjustable camshaft

US9617876B2 · kind B2 · utility

2Cited by

3References

14Claims

0Family size

Assignee

THYSSENKRUPP PRESTA TECCENTER AG · LI

Inventors

Uwe Dietel · Lichtentanne, DE
Michael Kunz · Steinheim an der Murr, DE
Bernd Mann · Lengefeld, DE

Key dates

Filing date	Jul 19, 2013
Grant date	Apr 11, 2017
Priority date	—
Expiry date	Jul 19, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2102
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present invention relates to an adjustable camshaft for the valve gear of an internal combustion engine having an outer shaft, on which at least one first cam is arranged which is connected fixedly to said outer shaft so as to rotate with it, and having an inner shaft which extends through the outer shaft and to which at least one second cam is connected fixedly so as to rotate with it and is mounted rotatably on the outer shaft, and it being possible for oil to be conducted from a gap between the outer shaft and the inner shaft through an oil duct in the outer shaft into the region between the second cam and the outer shaft. According to the invention, the second cam is sealed at least partially against the outer shaft by means of at least one sealing element.

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