Abstract:
Ensemble rotor et turbomachine à paliers à gaz comportant un tel ensemble rotor Cet ensemble rotor pour turbomachine comporte : - un aimant (6) permanent plein monté serré à l'intérieur d'une frette (4) réalisée dans un matériau amagnétique, - un premier arbre (2) présentant au moins un palier (12) destiné à coopérer avec un palier support pour former un palier à gaz et assurer un guidage en rotation du premier arbre (2), la frette (4) formant un ensemble monobloc avec le premier arbre (2) dans le prolongement de celui-ci, et - un second arbre (8) présentant au moins un palier (14) destiné à coopérer avec un palier support pour former un palier à gaz et assurer un guidage en rotation du second arbre (8) s'étend à partir de la frette (4) du côté opposé au premier arbre (2), de manière coaxiale avec le premier arbre (2) de telle sorte que le premier arbre (2), la frette (4) et le second arbre (8) forment un ensemble monobloc. Turbomachine avec un tel ensemble rotor.
Abstract:
A fuel system for a gas turbine engine includes a fuel conditioner. The fuel conditioner has an ice debris separator, a fuel pump, a heat exchanger, and an air oil cooler. The ice debris separator has a fuel inlet and a fuel outlet. The fuel pump connects to the fuel outlet of the ice and debris separator for receiving a fuel flow, pressurizing the fuel flow, and providing the pressurized fuel flow to an outlet of the fuel pump. The heat exchanger is connected to receive pressurized fuel from the fuel pump outlet and has an oil inlet for receiving heated oil, an oil outlet for discharging cooled oil, and a fuel outlet for discharging heated fuel. The air oil cooler is connected to the heat exchanger oil outlet and has an air cooled body configured for further cooling oil from the heat exchanger using an air flow.
Abstract:
An energy converter comprises an electrical turbo-machine (101) for converting energy contained by vaporized working fluid into electrical energy, a feed pump (105) for pumping the working fluid in a condensed form to a vaporizer (115), a pre-feed pump (106) for pumping the condensed working fluid to the suction side of the feed pump, and an ejector-pump (108) for pumping the condensed working fluid to the suction side of the pre-feed pump. The energy converter can be based on for example the Organic Rankine Cycle. The feed pump is operated by the electrical turbo-machine, the pre-feed pump is operated by a separate motor (107), and the ejector-pump is operated by a part of the output flow of the pre-feed pump. The ejector-pump facilitates generating sufficient pre-supply pressure for the pre-feed pump during also a starting phase and other situations where the electrical turbo-machine and feed pump are not fully operating.
Abstract:
Procédé d'optimisation de la consommation spécifique d'un hélicoptère équipé de deux turbomoteurs (1, 2) comportant chacun un générateur de gaz (11, 21) muni d'une chambre de combustion (CC), chacun de ces turbomoteurs (1,2) étant apte à fonctionner seul en régime de vol continu, l'autre turbomoteur (2, 1 ) étant alors en régime dit de super-ralenti à puissance nulle et avec la chambre de combustion (CC) allumée, ce régime de super-ralenti étant assisté par un entraînement mécanique en rotation de l'arbre (AE) du générateur de gaz à ce régime, de façon à réduire la température de fonctionnement et la consommation de carburant de ce générateur de gaz.
Abstract:
A gas turbine system is described, comprising a gas turbine (23), at least a first load (71) and a second load (72) powered by the gas turbine. The gas turbine (23) comprises: a gas generator (27); a low pressure turbine (50); a power shaft (65) powered by the low pressure turbine(50). The power shaft has a first shaft end (65H) drivingly connected to the first load and a second shaft end (65C) drivingly connected to the second load. The first load and the second load are arranged at opposite sides of the gas turbine and the power shaft (65) axially extends through the gas turbine from a first end to a second end thereof.
Abstract:
A gas turbine engine (100) with - a compressor section (105), - a combustor section (106) comprising at least one combustor (107, 110), - a turbine section (112), - at least one gaseous fuel supply conduit (22) with an upstream section (23) and a downstream section (25) the downstream section (25) being connected to the combustor (107, 110) for delivering gaseous fuel and - a fuel booster located in the gaseous fuel supply conduit, the fuel booster (1) having a driving expander (9) with a driving fluid inlet (11) that is in flow connection with a compressed air outlet (116) of the gas turbine engine's compressor, for receiving compressed air and a driving fluid outlet (13) for discharging expanded air and a fuel compressor (17) with a low pressure fuel inlet (19) connected to the upstream section (23) of the gaseous fuel supply conduit (22) and a high pressure fuel outlet (21) connected to the downstream section (25) of the gaseous fuel supply conduit (22), characterised in that a heat exchanger (3) is present which is located such between the unexpanded driving fluid or the expanded driving fluid on the one side and the low pressure gaseous fuel or the high pressure gaseous fuel on the other side that a heat transfer between the air and the gaseous fuel is possible.
Abstract:
The invention relates to a hydraulic drive (10, 20) for an airplane (F), comprising: a transmission (13), a first hydraulic pump (11; 21) and a second hydraulic pump (12; 22), wherein the transmission (13) is installed in a transmission housing (13a) and wherein the first hydraulic pump (11; 21) and the second hydraulic pump (12; 22) are each installed in a pump housing (11a; 12a) that is attached to the transmission housing (11a), or both of the pumps are installed in a pump housing that is attached to the transmission housing (11a); a hydraulic supply device with a first (A) and a second (B) hydraulic system for operating actuators of the airplane and a monitoring and actuating device, with a first hydraulic drive (10) for coupling the same to a first engine (1) and a second hydraulic drive (20) for coupling the same to a second engine (2), wherein each hydraulic drive (10, 20) comprises: a transmission drive shaft (1a; 2a) for coupling the respective hydraulic drive (10, 20) to an engine output shaft of the associated engine (1; 2) and two hydraulic pumps (11, 12; 21, 22) coupled to a transmission output shaft, each with a connecting device (42, 42) for connecting the hydraulic pump to the pressure line and the suction line of a hydraulic system (A, B); an airplane with a hydraulic supply device of said kind, and a method for configuring a hydraulic supply device.