摘要:
Aspects of the disclosure are directed to a nacelle of an aircraft, comprising a surface that is profiled such that during cruise flight operation lines of constant static pressure of a boundary layer around the nacelle (422; 522) in a given region are substantially contained within a plane that is normal to an engine axis.
摘要:
An aircraft propulsion system (1300) includes a fan (602), a primary powerplant (606), an augmenting powerplant (608) and a controller (610). The primary powerplant (606) is coupled to the fan (602) and configured to rotate the fan (602) during a first flight stage and during a second flight stage. The augmenting powerplant (608) is coupleable with the fan (602). The controller (610) is configured to cause the augmenting powerplant (608) to drive the fan (602) during the first flight stage, and to cause the augmenting powerplant (608) to cease driving the fan (602) based on an indication of a transition from the first flight stage to the second flight stage.
摘要:
One embodiment of the present invention is a unique aircraft. Another embodiment is a unique aircraft propulsion system. Still another embodiment is a unique system for taxiing an aircraft without starting one or more main aircraft propulsion engines. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for aircraft taxiing and propulsion systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.
摘要:
A fireproof mount adapter (140) is provided that is configured to couple a case flange (128) of an auxiliary power unit (100) to a stud adapter (138), the case flange (128) having a plurality of spaced apart fastener openings formed therethrough. The mount adapter (140) comprises a first rib (142) and a mount plate (144). The first rib (142) has a portion configured to extend substantially parallel to at least a portion of the case flange (128) and includes a plurality of openings (146) formed therethrough. The openings (146) are disposed in a pattern such that at least selected ones correspond to one or more of the case flange fastener openings. The mount plate (144) has a first side (147) integrally formed on the first rib (142), a second side (148), and a plurality of aperture (150) extending therebetween. The first rib (142) and the mount plate (144) comprise fireproof material.
摘要:
A method is provided for operating a hybrid-electric propulsion system of an aircraft. The hybrid-electric propulsion system (100) includes a gas turbine engine (10) having a high pressure system, a low pressure system, an electric machine (102) coupled to at least one of the high pressure system or low pressure system, and an energy storage unit (104). The method includes operating the electric machine as an electric generator to charge the energy storage unit during a flight operation of the aircraft; switching the gas turbine engine to an electric operating mode during or after a landing operation of the aircraft; driving a system of the gas turbine engine using power from the energy storage unit while in the electric operating mode to provide or assist with providing ground operations the aircraft.
摘要:
L'invention concerne une nacelle (102) comportant une structure fixe avec un capot fixe (206), un capot mobile (207) mobile en translation selon une direction parallèle à un axe longitudinal X, une porte de blocage (104) mobile en rotation sur le capot mobile (207) et un système de déploiement (150). Le système de déploiement (150) comporte une première bielle (152) où sa première extrémité est articulée sur la structure fixe par une liaison pivot autour d'un premier axe d'articulation (153), une deuxième bielle (154) où sa première extrémité est articulée sur le capot mobile (207) par une liaison pivot autour d'un deuxième axe d'articulation (156) et où sa deuxième extrémité est articulée sur la deuxième extrémité de la première bielle (152) par une liaison pivot autour d'un troisième axe d'articulation (158), une troisième bielle (160) où sa première extrémité est articulée sur la deuxième bielle (154) par une liaison rotule à doigt (162), et où sa deuxième extrémité est articulée sur la porte de blocage (104) par une liaison rotule à doigt (164), où les trois bielles (152, 154, 160) sont disposées en dehors de la veine. Comme les bielles sont à l'extérieur de la veine, elles ne gênent pas le flux dans la veine et il n'est pas nécessaire de prévoir une découpe dans la porte de blocage ce qui permet d'améliorer son efficacité en inversion de poussée.