Piston/liner arrangement for a reciprocating-piston internal combustion engine

US5797311A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Herbert Gasthuber · Ulm, DE
• Bernd-Eric Lubbing · Eberbach, DE
• Martin Schulz · Brenham, US
• Michael Wiesner · Dedham, US

Key dates

• Filing date: Jul 8, 1997
• Grant date: Aug 25, 1998
• Expiry date: Jul 8, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05C2203/0882
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a piston/liner arrangement for a reciprocating-piston internal combustion engine, wherein a piston with a skirt is axially movable in the liner, at least one of the piston skirt and the liner includes sections with an open-pore surface structure in which a lubricant with a high affinity to the material having the open-pore surfaces structure is disposed so as to form a lifetime lubrication arrangement.