摘要:
The present invention relates to a device for molding by impregnation of at least one reinforcing layer constituting a piece to be molded or at least one reinforcing layer covering a piece, with a resin (10) in liquid form, said device comprising a mold extending around the reinforcing layer by defining a resin (10) circulation space (5), an end piece (11) for supplying resin (10) in the circulation space (5), an end pieoe for evacuating (12) the surplus resin (10) as well as means for generating a flow of resin in the circulation space (5). According to the invention, the mold comprises a flexible conduit (80) and means for mechanically deforming said flexible conduit to shape the circulation space (5) according to the impregnation parameters.
摘要:
A filtering device for an engine or a for power unit with a radial air intake (2), comprising a ring-shaped filter (3) for covering the radial air intake, characterised in that the ring-shaped filter comprises a first fixed part (3a) and a second mobile part (3b) which is movable with respect of the first fixed part through actuator means (6), from a filtering position in which the whole radial air intake is covered by the ring-shaped filter, to a bypass position in which the second mobile part uncovers at least partly the radial air intake.
摘要:
The invention relates to a flight simulator vibration system, particularly to a crew seat (1), a flight control stick (20) and a panel (30) vibration system of a flight simulator with at least one plate of the crew seat (1), the flight control stick (20) and/or the panel (30) being equipped with predefined momentum weights (13, 16) and electric motors driving said respective momentum weights. Speed governors are controlling individually said electric motors (7, 8, 9, 21, 33, 34).
摘要:
The invention relates to a method for producing a component made of fibre-reinforced plastic by impregnating a fibre mould-blank (11) with a liquid impregnating material (10), comprising at least the following steps: a) placing the fibre mould-blank (11) into a cavity (2) of a mould tool (1) while generating a temporary free space (9) between the fibre mould-blank (11) and at least one interior surface (19) of the mould tool (1); b) feeding the impregnating material (10) into this free space (9); c) closing the free space (9) by narrowing the mould tool (1) so that the impregnating material (10) is displaced from the free space (9) into the fibre mould-blank (11). It is further developed in that the mould tool (1) is gradually subjected to locally different forces (F1; F2; F3; ... Fn, Fa; Fb; Fc) which locally cause the free space (9) to be closed. Furthermore, the invention relates to a mould tool (1) that is designed analogously to this.
摘要:
The invention relates to a semifinished textile product composed of a lay of fibres for use as preform for the production of construction elements of fibre-reinforced plastic. According to the invention, the fibres are transferred by means of laying/confectioning/draping into a lay of fibers in the form of a band, characterized in that said lay of fibres is able to absorb the forces acting on the respective construction element that is to be produced, the fibres being provided with the required UD fibre fractions and/or melt fibres and being permanently fixed to the produced fibre architecture of the band by predefined seams.
摘要:
A rotor blade (20), especially for a rotary wing aircraft, has an aerodynamically effective rotor blade profile which comprises a profile tip section (21), a profile base (20a) with a profile core (22) and an upper and lower covering skin (30) enclosing the profile core (22), and a profile trailing edge section (23) with a trailing edge (40). A reversibly flexible flection actuator (26) is fastened with a first end to an end section of the profile base (20a) pointing towards the trailing edge (40) and projects with a second end from the profile base (20a) and the end section thereof towards the trailing edge (40). The flection actuator, with the projecting second end, forms a part of the profile trailing edge section (23) of the rotor blade profile and a mobile rotor blade flap (24) which can be deformed to an arched rotor blade flap deflection when the flection actuator (26) is bent.
摘要:
The invention relates to an aircraft comprising a pressurised cabin with a lockable door, an electrical energy supply network, and a cabin differential pressure warning system (2) provided with an autonomous warning system energy supply device (4, 6, 8) which is independent of the electrical energy supply network.
摘要:
Luftfahrzeug-Kommunikations-Verfahren für einen Hubschrauber, sowie Luftfahrzeug-Kommunikationssystem für einen Hubschrauber (15), welches aufweist: eine Satellitenkommunikationsvorrichtung zum Senden und Empfangen von Sprache und/oder Daten über ein Satellitenkommunikationssystem. Vorteilhaft ist das Satellitenkommunikationssystem ein System mit einem oder mehreren geostationären Satelliten.
摘要:
Disclosed is a drilling element (2) for a bearingless rotor, which is made mostly of composite fiber material and the cross section of which has a substantially symmetric, flattened shape that has approximately the contour of a horizontal, central section of a double cone. Also disclosed is a bearingless rotor comprising at least one such drilling element (2). The invention further relates to a rotorcraft, particularly a helicopter, comprising at least one rotor that is provided with at least one such drilling element (2).