Arrangement for limiting radial thermal expansions of cylinders of a reciprocating piston internal combustion engine

US4640240A · kind A · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventors

• Gerhard-Wilhelm Ziegler · Aalen, DE
• Karl Gregotsch · Diez, DE
• Rolf von Sivers · Rutesheim, DE

Key dates

• Filing date: Sep 28, 1984
• Grant date: Feb 3, 1987
• Expiry date: Sep 28, 2004

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02F1/18
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An arrangement for limiting radial thermal expansions of cylinders in a reciprocating piston internal combustion engine by way of control elements, each of which includes a ring-shaped clamping member, which are provided within the areas of maximum alternating abutment pulses of the piston at the cylinder and consist of a material with a smaller thermal expansion coefficient than the cylinder.