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

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

Applicants claim priority under 35 U.S.C. §119 of German Application No. 198 33 594.6 filed Jul. 25, 1998. Applicants also claim priority under 35 U.S.C. §120 of PCT/DE99/02244 filed Jul. 21, 1999. The international application under PCT article 21(2) was not published in English. The invention rela...

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Hauptverfasser: Basler, Martin, Engelhart, Ulrich, Grahle, Peter, Korte, Volker, Schmid, Jürgen, Vogelsang, Matthias, Wiesenmüller, Jens
Format: Patent
Sprache:eng
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Zusammenfassung:Applicants claim priority under 35 U.S.C. §119 of German Application No. 198 33 594.6 filed Jul. 25, 1998. Applicants also claim priority under 35 U.S.C. §120 of PCT/DE99/02244 filed Jul. 21, 1999. The international application under PCT article 21(2) was not published in English. 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.