Patent · US Active

Adjustable camshaft

US10132202B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

THYSSENKRUPP PRESTA TECCENTER AG · LI

Inventors

Bernd Mann · Lengefeld, DE
Uwe Dietel · Lichtentanne, DE
Michael Kunz · Steinheim an der Murr, DE
Jürgen Meusel · Kitzscher, DE
Martin Lehmann · Wohlen, CH

Key dates

Filing date	Jun 24, 2014
Grant date	Nov 20, 2018
Priority date	—
Expiry date	Jun 24, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2810/02
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An adjustable camshaft can be used in valve drives of internal combustion engines, amongst other places. The adjustable camshaft may include an outer shaft and an inner shaft that is concentric with and rotatably supported in the outer shaft. A cam having a cam bore may be rotatably supported on an outer surface of the outer shaft so as to form a slide bearing gap between the cam and the outer shaft. The cam may be rotatably-fixed to the inner shaft so that the inner shaft and the cam rotate with one another. Furthermore, the adjustable camshaft may include an oil channeling groove disposed beneath the cam in the outer surface of the outer shaft. In many cases, at least one side of the oil channeling groove may be exposed such that it extends beyond the slide bearing gap and the cam.

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