Method for the production of a steel camshaft and camshaft produced according to said method

US6478074B1 · kind B1 · utility

Assignee

• Mahle Ventiltrieb GmbH · DE

Inventors

• Martin Basler · Gaildorf, DE
• Ulrich Engelhart · Fellbach, DE
• Peter Grahle · Gerlingen, DE
• Volker Korte · Bissingen, DE
• Jürgen Schmid · Gaildorf, DE
• Matthias Vogelsang · Stuttgart, DE
• Jens Wiesenmüller · Lienen, DE

Key dates

• Filing date: Mar 16, 2001
• Grant date: Nov 12, 2002
• Expiry date: Mar 16, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02F2200/08
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a camshaft made of cast steel having an inner cavity with a cylindrical inner shape, especially a profiled cylindrical inner shape produced rationally according to a lost-foam casting method known per se. A steel camshaft thus produced exhibits a long service life and can withstand extremely high hertzian surface pressures on its bearing surfaces without any damages.