Cylinder/crank casing in cast iron for internal combustion engines

US4528950A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Kurt Oblander · Weingarten, DE
• Wolfram Dahm · Jeffery Road, DE

Key dates

• Filing date: Oct 6, 1983
• Grant date: Jul 16, 1985
• Expiry date: Oct 6, 2003

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02F1/20
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A cylinder casing for use in internal combustion engines having a reciprocating piston is provided having strip-shaped hardened zones along the inner wall of the cylinder which are disposed in such a manner as to impart rotational movement to piston rings relative to the piston sliding within that cylinder.