Thyssenkrupp Presta Teccenter Ag

Markus Melzer

Bernd Mann

Michael Kunz

Jürgen Meusel

Juergen Meusel

The invention relates to a camshaft, especially for motor vehicle engines, comprising a hollow outer shaft () and an inner shaft () arranged coaxially in the outer shaft () and mounted in such a way that it can rotate in relation to the outer shaft (). Said camshaft also comprises first cams () arranged on the outer shaft () in a rotationally fixed manner, and second cams () that are arranged on the outer shaft () and fixed to the inner shaft (). According to the invention, a supporting element () is provided on at least one of the end regions of the inner shaft (), said supporting element projecting past the outer shaft () in the radial direction. An outer peripheral surface () of the outer shaft () and an associated inwardly facing surface () of the supporting element () form a radial bearing.

Camshaft, especially for motor vehicle engines

The invention relates to a camshaft, in particular for motor vehicle engines, comprising an outer shaft (), an inner shaft () arranged coaxially in the outer shaft (), first functional elements () rigidly arranged on the outer shaft (), second functional elements (), which are rotatably arranged on the outer shaft () and fastened to the inner shaft () in a rotationally fixed manner, and a phase adjuster () connected to the outer shaft () and the inner shaft () for rotating the inner shaft () relative to the outer shaft (), wherein the phase adjuster () is fastened to the inner shaft () and thereby a torque is applied. According to the invention, one of the functional elements () connected to the inner shaft () in a rotationally fixed manner has tool accommodation surfaces () on the cylindrical surface side outside of a functional surface (). The invention further relates to such a functional element.

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Burkhardtsdorf, Germany

Markus Melzer