Cylinder crankcase, procedure for manufacturing the cylinder bushings for the cylinder crankcase, and procedure for manufacturing the cylinder crankcase with these cylinder bushings

US7073492B2 · kind B2 · utility

Assignees

• Atz-Evus Applikations-Und Technikzentrum · DE
• Hyrdro Aluminium Deutschland GmbH · DE

Inventors

• Dietmar Hoffmann · Munich, DE
• Josef Steibl · Unterschleißheim, DE
• Frank Dornenburg · Nuremberg, DE
• Markus Nolte · Hille, DE
• Achim Sach · Tettnang, DE
• Berthold Aumuller · Idar-Oberstein, DE
• Klaus Dotzler · Vilseck, DE

Key dates

• Filing date: Sep 25, 2003
• Grant date: Jul 11, 2006
• Expiry date: Feb 24, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/4927
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A light metal cylinder crankcase for combustion engines has cylinder bushings with a running layer that forms the running surface and a rough, external bonding layer for bonding the cylinder bushings to the cylinder crankcase while pouring the cylinder crankcase. At least 60% of the bonding layer relative to the jacket surface of the bonding layer is connected with the casting material of the cylinder crankcase in a material tight manner.