摘要:
The invention relates to an assembly for a turbine (22) of a turbine engine, comprising a casing (32) and an annular duct (34) surrounding the casing, which can be connected to means for supplying cooling air, and having a radially inner annular wall (36) provided with openings (40) arranged opposite the casing in order to cool same by the impact of cooling-air jets. The casing has a plurality of axial grooves (42) comprising first grooves (42A) and second grooves (42B) arranged in alternation, and the openings are distributed in a plurality of annular rows in which any pair of consecutive annular rows is such that the openings (40A) of one of the annular rows of the pair are centred relative to the first grooves (42A) while the openings (40B) of the other annular row of the pair are centred relative to the second grooves (42B).
摘要:
Est concerné un ensemble de raccordement comprenant un boîtier (15) de distribution d'air depuis un passage d'entrée d'air (155) vers au moins un conduit raccordé avec le boîtier (15) par au moins une douille (19) montée sur un orifice (21) d'une paroi du boîtier. Cette paroi du boîtier et une paroi interne de la douille se raccordent par un congé de raccordement présentant un rayon qui est maximum sur un secteur angul aire (273).
摘要:
The invention relates to a turbine engine blade (12) comprising a hollow body defining a cavity, and also comprising a downstream trailing edge (16). The blade (12) further comprises at least one hole (18) which communicates with the cavity and opens downstream onto the trailing edge (16). The trailing edge (16) extends along the main radial direction of the blade (12) and comprises a downstream convex face (20). The blade is characterised in that each hole (18) opens onto a planar rear face (24) of a flat region (22) formed in the trailing edge (16).
摘要:
A fan system includes a rotor having plurality of blades and a ring airfoil, the plurality of blades being rotatably joined to a hub and the ring airfoil. The fan system may include a second contra-rotationally disposed rotor having a plurality of blades and a ring airfoil. The first and second ring airfoils having a cambered shape and an angle of attack between about -5 degrees and about 45 degrees, more preferably between about 5 degrees and about 30 degrees. Optionally, an outlet guide vane may be mounted rearward of the one or more rotors having a ring airfoil.
摘要:
A tuned mass damper (258) for reducing vibration on a component (254) includes a shaft connector member (300) configured to be coupled to the component (254) and a cable termination member (302). The tuned mass damper (258) also includes at least one cable (304,306) coupled to the shaft connector member (300) and to the cable termination member (302) such that vibration of the component (254) is transferred to the at least one cable (304,306) via the shaft connector member (300) and increased or decreased by the at least one cable (304,306).
摘要:
L'invention concerne une turbine comprenant un carter (56) intermédiaire intercalée axialement entre un carter (36) de turbine haute pression amont et un carter (38) de turbine basse pression aval et comprenant une virole (60) annulaire externe depuis laquelle s'étend radialement une bride (54) annulaire, caractérisée en ce que l'extrémité (36a) aval du carter (36) de turbine haute pression et l'extrémité (38a) amont du carter (38) de turbine basse pression sont fixées sur la bride (54) annulaire radiale du carter (56) intermédiaire.
摘要:
A linkage system (232; 432; 532; 632) for a nacelle (112) may comprise a pivot (330; 430; 530) configured to extend through a second aperture disposed in a link arm (256), a base member (310; 410; 510; 610), and a retaining member (320; 420; 520; 620) at least partially defining a first aperture and a cavity (342; 442; 542). The pivot (330; 430; 530) is configured to extend at least partially into the first aperture. The cavity (342; 442; 542) is configured to accommodate a portion of the link arm (256).
摘要:
A control system (100) for a gas turbine engine includes a processing system (102) operable to control a speed of the gas turbine engine and a memory system (104). The memory system (104) is operable to store instructions executable by the processing system (102) to determine at least one performance parameter associated with a stall condition of the gas turbine engine and to incrementally adjust an acceleration rate of the gas turbine engine based on detecting a degraded stall line limit according to the at least one performance parameter.
摘要:
A rim seal (70) for a rotor (48; 90) of a gas turbine engine (10) includes a seal portion (74) extending circumferentially across a rim cavity (68) of a rotor, the seal portion configured to seal the rim cavity and a first foot portion (76) extending radially inwardly from a first end (78) of the seal portion. A rotor assembly for a gas turbine engine includes a rotor disc (50; 94) and a plurality of rotor blades (52; 92) secured to the rotor disc defining a rim cavity between the rotor disc and a rim portion (66) of the plurality of rotor blades. A rim seal is located in the rim cavity and includes a seal portion extending circumferentially across the rim cavity, the seal portion configured to seal the rim cavity. The seal portion has an increasing radial thickness with increasing distance from a first end (78) of the rim seal and from a second end (78) opposite the first end.