摘要:
An attachable electro-impulse de-icer (40) for de-icing an aircraft structural member includes an inductor coil (42) disposed in proximity with the outer surface of the structural member. The coil (42) is supported by a flexible, ice-accumulating support member (surface ply) (46) that permits the coil (42) to move relative to the structural member. Preferably the coil (42) and support member (46) are formed in an integral construction that can be attached to the leading edge (44) of the structural member. The coil (42) and support member (46) are rapidly, and forcefully, displaced away from the structural member upon passing a short-duration, high-current pulse through the coil (42). The current flow creates an electromagnetic field that induces eddy currents in the support member (if made of metal), and the structural member (if made of metal). Upon collapse of the electromagnetic field in the coil (42), the support member (46) is pulled rapidly to its rest position adjacent the structural member. Alternative arrangements are provided wherein (I) a metal target is disposed in proximity with the outer surface of the coil (II), a metal target is disposed in proximity with the outer surface of the structural member, and (III) an additional target (doubler) is attached to the inner surface of the structural member.
摘要:
A cooling system including a heat load; a supply line supplying a cold coolant to the heat load, wherein the cold coolant receives heat from the heat load and becomes a hot coolant, a return line receiving the hot coolant from the heat load, a transducer generating elliptical ultrasonic waves, and a horn coupled to the receiving line and receiving the hot coolant, wherein the horn conveys the elliptical ultrasonic waves to the hot coolant. The hot coolant, in response to the horn conveying the elliptical ultrasonic waves, undergoes heat loss through convection. Elliptical ultrasonic waves are provided by a transducer combining a longitudinal actuator and a bending actuator.
摘要:
Es wird ein mikroelektronisches Modul (100) zur Reinigung einer Oberfläche angegeben. Das mikroelektronische Modul weist wenigstens einen Spannungswandler (101) zur Umwandlung einer bereitgestellten ersten Spannung (V1) in eine höhere, niedrigere oder identische zweite Spannung (V2) auf. Weiter weist das Modul wenigstens einen Aktuator (102) auf. Der Aktuator weist wenigstens einen Generator (103) zur Erzeugung eines Ionenstroms, eines elektrischen Plasmas, von Oberflächenwellen und/ oder eines elektrostatischen Feldes aus der von dem Spannungswandler bereitgestellten zweiten Spannung auf. Wenigstens der Spannungswandler und der Aktuator sind auf einem gemeinsamen dünnschichtigen flächigen Substrat (104) angeordnet. Mittels des Aktuators erfolgt die wenigstens überwiegende Entfernung wenigstens eines an der Oberfläche haftenden Objekts.
摘要:
Um einen Oberflächenbereich (14) eines Luftfahrzeugs (16) besonders energieeffizient von Eis freizuhalten, schafft die Erfindung eine Vorrichtung (10) zur Enteisung und/oder Vermeidung von Eisbildung für ein Luftfahrzeug (16), mit einer Wärmeabgabeeinrichtung (12) zur Abgabe von Wärme an einen Oberflächenbereich (14) des Luftfahrzeuges (16), dadurch gekennzeichnet, dass die Wärmeabgabeeinrichtung (12) zur linienförmigen Wärmeabgabe zwecks Erzeugung einer Sollbruchstelle oder Sollbruchlinie (32) oder Trennlinie in sich auf dem Oberflächenbereich ansammelndem Eis ausgebildet ist.
摘要:
Methods and systems are generally described that inhibit debris (such as ice) accretions and/or remove debris (such as ice) accretions from the exterior surface of an aircraft. In some embodiments, the invention is a system for an aircraft comprising: a component of the aircraft having a surface; a plurality of piezo-kinetic actuators each positioned proximate to a portion of the surface; and a control unit coupled to the plurality of actuators, the control unit configured to actuate one or more of the actuators at one or more frequencies between about 1 Hz and about 1 kHz; wherein the actuators are each configured to introduce a displacement of the surface in three dimensions to inhibit a formation of ice on at least the portion of the surface and to break up existing ice formations on at least the portion of the surface.
摘要:
Zum Enteisen von Rotorblättern (1) eines Hubschraubers werden mit in die Haut (4) der Rotorblätter integrierten Aktuatoren (5, 6) Verformungen von Oberflächen (12) der Rotorblätter hervorgerufen, um Eis von den vereisten Oberflächen (12) abzulösen. Beim Hervorrufen der Verformungen mit den Aktuatoren (5, 6) werden die Rotorblätter (1) um ihre Längsachsen (9) tordiert.
摘要:
The invention relates to a lip assembly (1) for the air inlet of a turbojet engine nacelle, that comprises an inner surface (9), an outer surface (11) and de-icing means, wherein the de-icing means includes an anti-ice coating (13) covering at least a portion of the outer surface (11), said anti-ice coating (13) including one or more piezoelectric actuators within the matrix of said coating (13). The invention also relates to a turbojet engine nacelle that comprises such a lip assembly (1).