Casting core for a water jacket

US4917169A · kind A · utility

Assignee

• AVL Gesellschaft fuer Verbrennungskraft-maschinen und Messtechnik mbH, · AT

Inventors

• Helmut Melde-Tuczai · Graz, AT
• Wilhelm Greylinger · Mürzzuschlag, AT
• Klaus Nowotny · Markt Einersheim, DE

Key dates

• Filing date: Aug 15, 1988
• Grant date: Apr 17, 1990
• Expiry date: Aug 15, 2008

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02F1/24
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a casting core for the water jacket of a cylinder block in a multicylinder, reciprocating-piston internal combustion engine, whose cylinders are arranged in line and are cast in one piece linked by cylinder webs, these webs are provided with rectangular plates of a ceramics material--preferably sintered oxide ceramics--, which are used as supports for two core halves, in which they are anchored in such a way as to present a one-piece casting core. The supports are removed during the core cleaning process, leaving passages for the cooling water.