Device for boundary layer suction and composite component therefor
AssigneeAirbus Operations GmbH
InventorMartin Gerber
Life of this patent
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Abstract
A device for boundary layer suction on the outer skin of an aircraft, on which outer skin a surface where drawing off by suction can take place comprising openings is connected to a suction source by way of at least one suction line, wherein the surface where drawing off by suction can take place is formed by at least one panel-shaped composite component that comprises an extruded profile, made of light metal, as a base body, which extruded profile comprises several suction channels that are open towards the outer skin, onto which base body, for the purpose of forming the outer skin, a micro-perforated metal cover sheet has been applied in the region of the surface where drawing off by suction can take place.
Claims7
A composite component comprising a surface for boundary layer suction on the outer skin of an aircraft where drawing off by boundary layer suction can take place, the composite component comprising:
- a base body, the base body comprising an extruded profile made of a light metal,
- a plurality of stringers extruded from the base body and forming a plurality of open suction channels arranged next to one another on the base body, and
- a micro-perforated metal cover sheet made of titanium or a stainless steel as a corrosion-resistant metal applied to stringer heads thereby forming the surface where drawing off by boundary layer suction can take place.
An aerodynamic component of an aircraft comprising a composite component comprising a surface for boundary layer suction on the outer skin of an aircraft, the component comprising:
- a base body, the base body comprising an extruded profile made of a light metal,
- a plurality of stringers extruded from the base body and forming a plurality of open suction channels arranged next to one another on the base body,
- a micro-perforated metal cover sheet made of titanium or a stainless steel as a corrosion-resistant metal applied to stringer heads thereby forming the surface where drawing off by boundary layer suction can take place, and
- a suction source connected to the surface by the suction channels and at least one suction line;
- wherein the micro-perforated metal cover sheet is bonded or vulcanized onto the extruded profile thereby producing a firm integral connection;
- and
- wherein the stringer heads have planar support surfaces and chamfered first and second flanks.
Dependencies are inferred from the claim text.