Light alloy piston

US4809652A · kind A · utility

Assignee

• Kolbenschmidt Aktiengesellschaft · DE

Inventors

• Gunder Essig · Heilbronn, DE
• Manfred Bordt · Fürstenau, DE

Key dates

• Filing date: Sep 3, 1986
• Grant date: Mar 7, 1989
• Expiry date: Sep 3, 2006

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J1/08
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a light alloy piston each of the load-carrying skirt surfaces is divided into a plurality of load-carrying skirt surface portions. In order to ensure that the upper portion of the piston skirt will carry load on a large area even when the engine is warming up, a plurality of depressions extending in the peripheral direction of the piston skirt are formed in the latter between its clearance-defining top and bottom ends.