Abstract:
An aeronautical propulsion system includes a fan 38 having a plurality of fan 38 blades and an electric motor 82 drivingly connected to the fan 38 for rotating the plurality of fan 38 blades. A chemically rechargeable ultra-capacitor 86 is included for providing the electric motor 82 with a substantially continuous flow of electric energy during operation of the chemically rechargeable ultra-capacitor 86, resulting in a more efficient aeronautical propulsion system.
Abstract:
An aircraft comprises a lift/propulsion unit 8 which comprises a power unit such as a turboshaft engine 14 which drives a fan 10 through a transmission mechanism 16. The fan 10 discharges to vectoring nozzles 24 which can be independently swivelled to provide lift or propulsion thrust. An output shaft 20 of the transmission mechanism 16 serves as the main shaft of a motor/generator 26 of modular form. The motor/generator 26 can act as a generator to charge an electrical storage device such as a battery 32, or as a motor to drive the fan 10, either alone or to supplement the output of the engine 14. Reaction control nozzles 38 are provided at extremities of the aircraft to provide stabilising thrust. The aircraft is capable of vertical take off and hovering, with the vectoring nozzles 24 swivelled to a lift position, and forward thrust with the vectoring nozzles 24 swivelled to a propulsion position.
Abstract:
A hybrid-electric propulsion system (10) includes a gas turbine engine (12), an electric machine (14) coupled to and rotatably driven by the gas turbine engine to produce AC electric power, an energy storage system (18), and a propulsion unit (16). The gas turbine engine includes a combustor (26) and a recuperator (20) that places an exhaust air flow that is downstream from the combustor in a heat exchange relationship with a compressed air flow that is upstream from the combustor to transfer thermal energy from the exhaust flow to the compressed flow. The propulsion unit includes a fan (44) and an electric motor (42) rotably coupled to the fan, the electric motor being driven by electric power from one of the electric machine or the energy storage system.
Abstract:
An aeronautical propulsion system includes a fan 38 having a plurality of fan 38 blades and an electric motor 82 drivingly connected to the fan 38 for rotating the plurality of fan 38 blades. A chemically rechargeable ultra-capacitor 86 is included for providing the electric motor 82 with a substantially continuous flow of electric energy during operation of the chemically rechargeable ultra-capacitor 86, resulting in a more efficient aeronautical propulsion system.
Abstract:
An auxiliary power unit (10) for an aircraft, including an internal combustion engine (12) having a liquid coolant system, a generator (64) drivingly engaged to the internal combustion engine (12) and having a liquid coolant system distinct from the liquid coolant system of the internal combustion engine (12), a first heat exchanger (66) in fluid communication with the liquid coolant system of the internal combustion engine (12), a second heat exchanger (68) in fluid communication with the liquid coolant system of the generator (64), an exhaust duct (70) in fluid communication with air passages (66b, 68b) of the heat exchangers (66, 68), and a fan (78) received in the exhaust duct (70) and rotatable by the internal combustion engine (12) for driving a cooling air flow through the air passages (66b, 68b). The liquid coolant system of the engine (12) may be distinct from fuel and lubricating systems of the auxiliary power unit (10).
Abstract:
An aircraft comprises a lift/propulsion unit 8 which comprises a power unit such as a turboshaft engine 14 which drives a fan 10 through a transmission mechanism 16. The fan 10 discharges to vectoring nozzles 24 which can be independently swivelled to provide lift or propulsion thrust. An output shaft 20 of the transmission mechanism 16 serves as the main shaft of a motor/generator 26 of modular form. The motor/generator 26 can act as a generator to charge an electrical storage device such as a battery 32, or as a motor to drive the fan 10, either alone or to supplement the output of the engine 14. Reaction control nozzles 38 are provided at extremities of the aircraft to provide stabilising thrust. The aircraft is capable of vertical take off and hovering, with the vectoring nozzles 24 swivelled to a lift position, and forward thrust with the vectoring nozzles 24 swivelled to a propulsion position.
Abstract:
An axial flow positive displacement compressor (8) has an inlet (20) axially spaced apart and upstream from an outlet (22). Inner and outer bodies (12, 14) have offset inner and outer axes (16, 18) extend from the inlet (20) to the outlet (22) through first and second sections (24, 26) of a compressor assembly (15) in serial downstream flow relationship. At least one of the bodies is rotatable about its axis. The inner and outer bodies have intermeshed inner and outer helical blades (17, 27) wound about the inner and outer axes respectively (16, 18). The inner and outer helical blades (17, 27) extend radially outwardly and inwardly respectively. The helical blades have first and second twist slopes (34, 36) in the first and second sections (24, 26) respectively. The first twist slopes (34) are less than the second twist slopes (36). An engine (100) including the compressor has in downstream serial flow relationship from the compressor (8), a combustor (7), and a high pressure turbine (9) drivingly connected to the compressor by a high pressure shaft (5).
Abstract:
SUMMARY Air jet propeller with three basic bodies, the first body or head has a half ellipse of revolution and a grille on its upper part while the lower part is being closed down by a pipe and a shutting hoop. The second body or central part with a cylindrical tubular shape has the helical round honeycomb rotor incorporated and fitted to an explosion engine. The third body or back with a conical base shape has a series of windows, hatches and butterflies balancing, stabilizing and orientating the aircraft with a considerable reduction in petrol consumption and therefore ensuring a decrease in pollution levels, this is possible as aircrafts can fly quite slowly (few kms/h.) facilitating landing and taking off processes with a minimum length of landing strips. The risks involved in landing and taking off at high speed are also being reduced.
Abstract:
An engine system comprises at least a first volumetric device, and a second volumetric device in which said second volumetric device is larger in volume than said first volumetric device, in which, during continuous flow of a compressible fluid from said first to said second volumetric device work is performed.
Abstract:
An engine comprises an air intake arrangement configured to receive air; a heat exchanger arrangement arranged downstream of the air intake arrangement, configured to cool the air, and comprising a plurality of heat exchanger modules; and one or more turbomachinery components configured to receive cooled air from the heat exchanger arrangement. The plurality of heat exchanger modules are arranged to be generally centred on and to be arranged along a longitudinal axis of the engine. At least one of the plurality of heat exchanger modules is arranged to at least partially overlap with at least one other one of the plurality of heat exchanger modules relative to the longitudinal axis of the engine.