Internal combustion engine, especially for motor vehicles

US4493295A · kind A · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventor

• Herbert Ampferer · Sachsenheim, DE

Key dates

• Filing date: Jul 7, 1983
• Grant date: Jan 15, 1985
• Expiry date: Jul 7, 2003

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01M13/0416
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An internal combustion engine, especially for motor vehicles, includes separate oil return and vent channels extending between a crank space of a cylinder crankcase and a valve-actuating space formed by a cylinder head and a cover. For the defined and separate guidance of the media passing through the oil return channels and vent channels, the oil return channels are arranged at a distance to the vent channels and the vent channels are connected to an air guide device inside of the valve-actuating space.