Cylinder liner for combustion engines and manufacturing method

US6354259B2 · kind B2 · utility

Assignee

• Federal-Mogul Friedberg GmbH · DE

Inventors

• Manfŕed Fischer · Laichingen, DE
• Rudólf Mundl · Marktoberdorf, DE
• Peter Godel · Freienried, DE
• Wolfgang Reichle · Lenningen, DE
• Werner Trubenbach · Obergriesbach, DE
• Markus Müller · Männedorf, CH
• Reinhard Rosert · Dresden, DE

Key dates

• Filing date: Apr 10, 2001
• Grant date: Mar 12, 2002
• Expiry date: Apr 10, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02F2007/009
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for the manufacture of a cylinder liner for combustion engines and a cylinder liner which can be manufactured by the method according to the invention are disclosed. The method comprises a thermal spray-deposition, such as by an arc spray-deposition process, of a wearing layer on a supporting body and a spray-deposition of a protective or connecting layer on the wearing layer. The wearing layer comprises a hypereutectic aluminum-silicon alloy and the protective or connecting layer comprises a hypoeutectic aluminum-silicon alloy. A melt retarder of iron, for example, may be interposed between these two layers. The melt retarder comprises a higher melting temperature than the two aluminum-silicon alloys, thereby preventing the wearing layer from partially melting when the cylinder liner is cast into a cylinder bore.