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EP0212167A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Device to reduce friction drag

Assignee: Airbus Defence and Space GmbH
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Filing: 1986-07-02
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Granted: —
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Expires: 2006-07-02
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Abstract

Abstract Translated from German Die Erfindung bezieht sich auf eine Einrichtung zur Verringerung des strömungsmechanischen Reibungswiderstandes bei Luft-, Raum- und Wasserfahrzeugen, bei dem die Oberfläche von einem, durch ein Medium angeströmten Körper mit einer asymmetrischen Feinstruktur in Form eines Rillenprofils, dessen Abmessungen die mittlere freie Weglänge der Moleküle des Mediums nicht wesentlich überschreitet, versehen ist. The invention relates to a device for reducing the fluidic frictional resistance in aircraft, spacecraft and watercraft, in which the surface of a body, against which a medium flows, with an asymmetrical fine structure in the form of a groove profile, the dimensions of which are the mean free path of the molecules of the medium does not significantly exceed, is provided.

Inventors

  • 👤 Gerhard Dr.-Ing. Löbert
  • 👤 Oskar Dr. Rer.Nat. Bschorr
  • 👤 Hans Dipl.-Ing. Spies

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-25 17:21
CPC Classifications
B; B64; B64C; B64C21/00; B64C21/10; F; F15; F15D; F15D1/00; F15D1/002; F15D1/0025; F15D1/003; F15D1/0035; F15D1/0045; Y; Y02; Y02T; Y02T50/00; Y02T50/10

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