摘要:
An air turbine starter (10) for starting an engine (14), comprising a housing (30) defining an inlet (32), an outlet (34), and a flow path (36) extending between the inlet (32) and the outlet (34) for communicating a flow of gas there through. A turbine member (38) is journaled within the housing (30) and disposed within the flow path for rotatably extracting mechanical power from the flow of gas. A gear train (40) is drivingly coupled with the turbine member (38), a drive shaft (64, 164, 264) is operably coupled with the gear train (40), and an output shaft (74, 174, 274) is selectively operably coupled to rotate with the engine (10) via a decoupler (72, 172, 272).
摘要:
L'invention propose un système de commande (38) d'aube à orientation (26) réglable de compresseur de turbomachine, notamment de compresseur basse pression de turboréacteur. Une telle aube (26) est également appelée aube à calage variable. Le système (38) comprend : un support ; une aube orientable (26) qui est mobile en rotation par rapport au support et qui comprend un levier de commande (36) de l'orientation de l'aube orientable (26); et une source de champ magnétique (40) qui définit un entrefer (46) avec le levier (36). Lorsque la source (40) est alimentée électriquement, elle forme un électroaimant attirant le levier (36) par induction si bien que l'aube orientable (26) change d'orientation. L'invention a également trait à un procédé de contrôle d'une turbomachine pour aéronef.
摘要:
A system for transferring mechanical torque variably between a plurality of rotating machines in a turbofan engine (10). Two devices are used, where the first device relies upon magnetic properties of a planetary magnetic gearbox (50) to couple the magnetic machines. The second device is used to variably control the torque transfer between the magnetic machines. The system couples rotating shafts (52, 54) rotating at differing speeds within a turbofan engine (10) for controllably transferring power. To transfer power in the system, a fixed gear ratio is obtained by coupling the relatively high- and low-speed engine shafts (52, 54) to an epicyclic magnetic gearbox (50).
摘要:
A control valve for a fluid flow includes: a valve body that defines an inlet and an outlet for the fluid, an obstructer inserted in the valve body, and an actuator system configured for reversibly translating the obstructer between a first position, in which the obstructer allows the passage of the fluid between the inlet and the outlet, and a second position, in which the obstructer prevents the passage of the fluid between the inlet and the outlet; the control valve further includes a turbine rotor housed inside the valve body, wherein the rotor includes a plurality of blades and is configured for continuously rotating under the action of the fluid flowing between the inlet and the outlet, the rotor rotating about an axis of rotation substantially aligned with the direction of translation of the obstructer.
摘要:
A turbomachine (10) comprises a turbine shaft (42), first (36) and second (40) rotors, first (12) and second (14) propulsion stages, and a magnetic stator (38). The first rotor (36) is rotationally coupled to the turbine shaft (42), and coaxially arranged along an axis (C L ). The first propulsion stage (12) is rotationally coupled to the first rotor (36), opposite the turbine shaft (42). The second rotor (40) is coaxially arranged about the first rotor (36), and the second propulsion stage (14) is rotationally coupled to second rotor (40), opposite the turbine shaft (42) and adjacent the first propulsion stage (12). The magnetic stator (38) is coaxially arranged between the first rotor (36) and the second rotor (40), forming a magnetic coupling between the first (36) and second (40) rotors to drive the second propulsion stage (14) in contra-rotation with respect to the first propulsion stage (12).
摘要:
A system for transferring mechanical torque variably between a plurality of rotating machines in a turbofan engine (10). Two devices are used, where the first device relies upon magnetic properties of a planetary magnetic gearbox (50) to couple the magnetic machines. The second device is used to variably control the torque transfer between the magnetic machines. The system couples rotating shafts (52, 54) rotating at differing speeds within a turbofan engine (10) for controllably transferring power. To transfer power in the system, a fixed gear ratio is obtained by coupling the relatively high- and low-speed engine shafts (52, 54) to an epicyclic magnetic gearbox (50).
摘要:
A gas turbine engine (20;100) including a compressor (24; 130) has a first compressor section (44;132) and a second compressor section (52;134), a combustor (56) fluidly connected to the compressor (24;130), and a turbine (28) fluidly connected to the combustor (24; 130). The turbine (28) includes a first turbine section (46;142) and a second turbine section (54). A first shaft (40;120,210) connects the first compressor section (44;132) and the first turbine section (46;142). A second shaft (50) connects the second compressor section (52;134) and the second turbine section (54). A fan (42;102) is connected to the first shaft (40;120,210) via a geared architecture (48;160). The first shaft (40;120,210) includes at least one magnetic section (220). An electromagnet (202) is disposed radially outward of the first shaft (40;120,210) at an axial location of the at least one magnetic section (220), relative to an axis (A) defined by the gas turbine engine (20;100).
摘要:
Die Erfindung betrifft einen Turbomaschinenstrang mit einem einen Stator (9) aufweisenden Generator (6), einem ersten Teilstrang (2), der sich ausgehend von dem Generator (6) in die eine Axialrichtung des Turbomaschinenstrangs (1, 12) erstreckt und der eine erste Strömungsmaschine (4) sowie einen radial innerhalb des Stators (9) angeordneten Innenläufer (7) aufweist, und einem zweiten Teilstrang (3), der sich ausgehend von dem Generator (6) in die andere Axialrichtung des Turbomaschinenstrangs (1, 12) erstreckt und eine zweite Strömungsmaschine (5) sowie einen radial außerhalb des Stators (9) angeordneten Außenläufer (8) aufweist, wobei der Innenläufer (7) eine Innenerregerwicklung zum Erzeugen eines Innenmagnetfelds und der Außenläufer (8) eine Außenerregerwicklung zum Erzeugen eines Außenmagnetfelds aufweist, so dass durch Einschalten des jeweiligen Magnetfelds jeder der Teilstränge (2, 3) mit dem Generator (6) einzeln kuppelbar und durch Ausschalten des jeweiligen Magnetfelds jeder der Teilstränge (2, 3) von dem Generator (6) einzeln entkuppelbar ist.