Motor vehicle with an air guidance device arranged in the body

US4673206A · kind A · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventors

• Helmut Kretschmer · Waldaschaff, DE
• Manfred Hochkoenig · Heubach, DE

Key dates

• Filing date: Aug 27, 1986
• Grant date: Jun 16, 1987
• Expiry date: Aug 27, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/82
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

For improving the air drag coefficient of a motor vehicle, discharge openings for a first air stream are provided in a cover part of the vehicle underside directly in front of and exclusively within the area of the wheels; the first air stream is conducted through an air guidance device arranged on the body side whereby a device for reducing the flow velocity of the first air stream is provided inside of the air guidance device. The first air stream has a smaller kinetic energy within the area of the discharge opening than the second air stream which flows through the space between the vehicle underside and the road surface.