Air-cooled multi-cylinder internal combustion engine

US4660512A · kind A · utility

Assignee

• Raychem Limited · US

Inventors

• Robert Binder · Dresden, DE
• Michael Beer · Wimsheim, DE

Key dates

• Filing date: Sep 20, 1985
• Grant date: Apr 28, 1987
• Expiry date: Sep 20, 2005

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B2075/1824
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An air-cooled multi-cylinder internal combustion engine includes cylinder heads cast together in a cylinder head casting; the cylinder heads are cooled from the inside by an S-shaped air flow extending between the valves. The cooling air thereby flows-in through an inlet channel at the inlet side of the cylinder heads, is deflected through 90.degree. in a central connecting channel and after a once-more 90.degree. deflection flows into the atmosphere through outlet channels which are formed between the individually cast exhaust gas outlet channels.