Piston for an internal combustion engine

US7900551B2 · kind B2 · utility

Assignee

• Mahle International GmbH · DE

Inventors

• Arnold Benz · Esslingen am Neckar, DE
• Helmut Kollotzek · Mutlangen, DE
• Markus Leitl · Winnenden, DE
• Sven Schilling · Bad Marienberg, DE
• Ernst Limbach · Winnenden, DE
• Josip Zvonkovic · Waiblingen, DE

Key dates

• Filing date: Dec 15, 2006
• Grant date: Mar 8, 2011
• Expiry date: Dec 5, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01M2001/086
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A piston for an internal combustion engine has an annular cooling channel provided with oil admission boreholes and oil discharge boreholes, the oil discharge boreholes being oriented in the direction of the bolt hubs for the cooling thereof.