Light alloy piston for internal combustion engines

US4683808A · kind A · utility

Assignee

• Kolbenschmidt Aktiengesellschaft · DE

Inventors

• Erich Wacker · Heilbronn, DE
• Ulrich Landau · Oedheim, DE
• Wilfried Sander · Neckarsulm, DE
• Klaus Schellmann · Weinsberg, DE

Key dates

• Filing date: Jun 17, 1985
• Grant date: Aug 4, 1987
• Expiry date: Jun 17, 2005

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05C2201/0448
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A light alloy piston for internal combustion engines has a skirt which is closed at its lower end and at locations disposed adjacent to the bosses on both sides of the horizontal plane through the piston pin is set back so as to form respective recesses. In order to avoid a retention of oil in the recesses those end portions of the skirt which adjoin the recesses are inwardly offset from the outside peripheral surface of the piston.