Abstract:
An apparatus comprising an aircraft having one or more propulsion engines and an external pod and including a turbine apart from the one or more propulsion engines, the turbine in power communication with an electrical generator and a heat exchange system that includes a phase change heat exchanger, the aircraft further including an implement in thermal communication with the heat exchange system.
Abstract:
A system for hybrid propulsion for an aircraft includes a gas turbine engine (102) having a power shaft (107). A motor generator (106) is operatively connected to the power shaft of the gas turbine engine and configured to produce electric power. An electric propulsion motor (111) is configured to receive the electric power and be selectively driven at an operational speed independent of a rotational speed of the power shaft.
Abstract:
A system is provided for cross engine coordination during gas turbine engine motoring. The system includes a first gas turbine engine (10A) of a first engine system (100A), a first air turbine starter (120A) of the first engine system (100A), a first starter air valve (116A) of the first engine system (100A), and a controller (102A). The controller (102A) is operable to command the first starter air valve (116A) to control delivery of compressed air to the first air turbine starter (120A) during motoring of the first gas turbine engine (10A), monitor cross engine data of a second gas turbine engine (10B) of a second engine system (100B) to detect a present condition or a commanded action that modifies an aspect of the compressed air received at the first starter air valve (116A), and command an adjustment to the first engine system (100A) to compensate for the modified aspect of the compressed air based on the cross engine data.
Abstract:
A range extender vehicle comprises: a turboshaft engine (1) arranged on a vehicle frame (12) chassis, a turboshaft engine controller (2), a generator (3), a battery pack (4), a battery controller (5), a driving motor (6), a battery heat radiator (7), and a gas storage tank (9). A signal end of the turboshaft engine (1) is connected to the turboshaft engine controller (2). A transmission shaft (1-6) is connected to a rotatory shaft of the generator (3). The generator (3) outputs an electric energy to the battery pack (4) and the driving motor (6) respectively. The battery pack (4) and the driving motor (6) are connected together and are connected to the battery controller (5) at the signal end. The transmission shaft of the driving motor (6) is connected to wheels (11). A cold air channel of the battery heat radiator (7) leads to the battery pack (4). A gas pipeline of the gas storage tank (9) is connected to a gas inlet pipeline of the turboshaft engine (1). The present invention forms a highly efficient, stable, and environmental friendly system, and has advantages of a high power to weight ratio, a low power consumption, a low emission, a low noise and vibration, eliminating the need for an exhaust gas treatment system and being easy to maintain, and having a long serving life.
Abstract:
An apparatus comprising an aircraft having one or more propulsion engines and an external pod and including a turbine apart from the one or more propulsion engines, the turbine in power communication with an electrical generator and a heat exchange system that includes a phase change heat exchanger, the aircraft further including an implement in thermal communication with the heat exchange system.
Abstract:
An electrical power generation system (100) for an aircraft gas turbine engine (10). The system comprises an alternating current electrical generator (110) having a rotor (114) comprising a plurality of electromagnetic rotor windings (118) and a stator (124) comprising a plurality of electrical stator windings (126). The rotor (114) is mechanically coupled to a shaft (36) of the gas turbine engine (10) by a transmission system (129). The electrical generator (110) further includes an electrical output frequency controller (130), a torque sensor arrangement configured to determine a torque imposed on the transmission system (129) by the generator (110) and a controller (112) configured to operate the electrical power generation system in first mode and second modes. In the first mode, the frequency of the electrical power output of the electrical generator (110) is controlled by the electrical output frequency controller (130) to lie within predetermined limits, and a reduced idle signal is provided to a gas turbine engine controller (132). In the second mode, the frequency of the electrical power output of the electrical generator (132) is not controlled by the electrical output frequency controller (130) and an increased idle signal is provided to the gas turbine engine controller (132). The electrical generator controller (112) is configured to operate the electrical power generation system (100) in the first mode when the torque is below a predetermined limit, and in the second mode when the torque is above a predetermined limit.
Abstract:
Eine zweiwellige Gasturbine (10) umfasst einen Verdichter (13), eine Hochdruckturbine (14), eine Niederdruckturbine (15), eine in dem Verdichter (13) und der Hochdruckturbine (14) angeordnete erste Welle (28) sowie eine in der Niederdruckturbine (15) angeordnete zweite Welle (29). Die Gasturbine umfasst eine Kupplung (16, 30), mit der die erste Welle (28) und die zweite Welle (29) miteinander zumindest in eine Drehrichtung drehmomentübertragend verbindbar sind.
Abstract:
The invention relates to a gas turbine (1) comprising a first compressor (2), a combustion chamber (16) and a first turbine (11), the turbine being adapted to drive the compressor via a first shaft (10a, 10b). The gas turbine also comprises a bleed valve (12) arranged upstream of the first turbine for conducting part of a gas compressed by the compressor past it during engine braking. The invention also relates to a method for engine-braking a gas turbine.