High-speed generator directly driven by air turbine

A technology of high-speed generators and air turbines, which is applied in the direction of engine components, machines/engines, electromechanical devices, etc., can solve the problems of increased flight time of aircraft, inability to be equipped with generators, and infeasibility, and achieve compact structure and reduced Radial size, effect of increasing the upper limit of rotation speed

Active Publication Date: 2013-09-11
JIANGXI HONGDU AVIATION IND GRP
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  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for aircraft that use engines without rotating parts such as rocket engines and ramjet engines as power plants, the main power supply of the aircraft will be a technical bottleneck that restricts the increase of the flight time (range) of the aircraft.
[0003] In addition, for some micro-turbojet engines used

Method used

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  • High-speed generator directly driven by air turbine
  • High-speed generator directly driven by air turbine

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Embodiment Construction

[0021] Attached below Figure 1-2 The present invention is further described in detail: a high-speed generator directly driven by an air turbine includes a generator casing 2, a casing 3, a turbine rotor 5, and also includes a permanent magnet assembly 4, a coil winding 1, and the turbine rotor 5 and The casing 3 forms an annular airflow passage, the permanent magnet assembly 4 forms a ring shape and is fixed on the outer edge of the last stage turbine rotor of the turbine rotor 5, and the coil winding 1 surrounds the casing 3 in a cylindrical shape On the outer surface, the generator casing 2 fixes the coil winding 1 to the casing 3 and plays a role of structural protection for the coil winding. The heat shield of the casing isolates the heat radiation on the load-bearing casing of the casing and the hot air surrounding the load-bearing casing of the casing from the coil windings, thereby blocking the transfer of heat to the coil windings.

[0022] This embodiment adopts 3-s...

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Abstract

The invention relates to a generator, in particular to a high-speed generator directly driven by an air turbine, wherein the high-speed generator is used for an air vehicle. The high-speed generator directly driven by the air turbine comprises a generator outer shell, a generator receiver and a turbine rotor, and further comprises a permanent magnet combination and a coil winding, wherein an annular airflow channel is formed by the turbine rotor and the generator receiver, the permanent magnet combination is in an circular ring shape and fixed on the periphery of a final-level rotor body of the turbine rotor, the coil winding forms a cylindrical shape and is arranged on the outer surface of the generator receiver in a surrounding mode, and the coil winding is fixed on the generator receiver through the generator outer shell. The high-speed generator directly driven by the air turbine has the advantages of being high in specific power, high in design total pressure dropping ratio, capable of well and automatically balancing the acting force of airflow on a wheel hub, compact in structure, capable of carrying out automatic cooling and capable of providing cooling air sources for the external.

Description

technical field [0001] The invention relates to an electric generator, especially an air turbine driven high-speed electric generator used on an aircraft. Background technique [0002] For aircraft that use engines without rotating parts such as rocket engines and ramjet engines as power plants, the main power supply on board usually adopts a technical solution powered by a thermal battery or a lithium battery with higher specific energy. When the flight time of the aircraft is short and the power consumption required by the aircraft is small, it is reasonable and feasible to use a thermal battery or a lithium battery for power supply. Taking the lithium battery used by an aircraft as an example, the rated capacity of the lithium battery is 10Ah , The working voltage is 27V, the corresponding external dimensions are 132mm×155mm×117mm (excluding the mounting flange), and the weight is 5kg. However, when the flight time of the aircraft is longer (about 5 minutes or more), the...

Claims

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Application Information

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IPC IPC(8): F01D15/10F01D5/02H02K7/18
Inventor 唐仁杰张邦楚邹敏怀刘涛彭琛熊薇欧军
Owner JIANGXI HONGDU AVIATION IND GRP
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