Device for stabilizing the engine inlet flow in static tests...

B - Operations – Transporting – 64 – F

Patent

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Details

B64F 1/26 (2006.01)

Patent

CA 2535700

The invention relates to a device for stabilizing the engine inlet flow in static tests of engines. Said device comprises an arrangement having an air- permeable element (4) which is arranged in an end position close to the engine housing (2) and partially enclosing the same. The air-permeable element is formed with a first air-permeable planar element part (6) that is disposed below the engine housing and that is located along a horizontal engine housing axis and parallel to a planar bottom (7) at a vertical distance (a). At the lateral margins of the surfaces of said, at the lateral edges thereof that are located along the engine housing axis, additional air-permeable planar element parts (9-12) are disposed downstream thereof and sideways of the lateral edges, and are configured to be foldable from a horizontal position onto the engine housing.

L'invention concerne un dispositif de stabilisation du courant d'entrée d'un groupe propulseur lors d'essais au point fixe, comprenant un dispositif présentant un élément perméable à l'air (4), lequel est placé, en position finale, à proximité d'une enveloppe (2) du groupe propulseur, et est disposé de manière à entourer partiellement ce dernier. L'invention est caractérisée en ce que l'élément perméable à l'air est formé d'une première pièce de cet élément (6) à surface plane, perméable à l'air, qui est disposée au-dessous de ladite enveloppe, laquelle est positionnée le long d'un axe horizontal de l'enveloppe, parallèlement à un fond à surface plane (7), à une distance verticale (a), pièce avec laquelle sont associées, latéralement à ses bords longitudinaux situés le long de l'axe de l'enveloppe, d'autres pièces (9-12) à surface plane dudit élément, perméables à l'air, formant une couche horizontale rabattable sur l'enveloppe, lesdites pièces étant agencées du côté des bords longitudinaux.

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