Crankshaft bearings for internal-combustion engines

US4693216A · kind A · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventors

• Herbert Ampferer · Sachsenheim, DE
• Klaus Groger · Bad Salzdetfurth, DE

Key dates

• Filing date: Jul 17, 1985
• Grant date: Sep 15, 1987
• Expiry date: Jul 17, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S384/912
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

These crankshaft bearings consist of a light-metal alloy and are formed by a bearing section of a crankcase and a bearing cap. In order to avoid a bearing clearance causing noise, a core made of iron metal is poured at least into the bearing cap, said core, by means of a bearing area, directly surrounding the crankshaft journal of a crankshaft, and having lugs for bores connected by a transverse part. The bores are penetrated by the screws in order to fasten the bearing.