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Electromagnetic drive fan unit

An electromagnetic drive, fan technology, applied in the direction of electromechanical devices, electric components, holding devices with magnetic attraction or thrust, etc., to achieve the effect of improving the thrust-to-weight ratio, reducing the weight of the fan, improving the stability and controllable margin

Active Publication Date: 2016-08-17
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on the technology of multi-electric aircraft and multi-electric engine, it is necessary to develop a new type of fan device and system that adopts electromagnetic drive mode. At present, there is no relevant report on this kind of electromagnetically driven engine fan or compressor. It has technical advantages. novelty and feasibility

Method used

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 , figure 2 As shown, an embodiment of the present invention includes a first-stage fan rotor 1 , a second-stage fan rotor 2 , a fan stator 3 , a fan blade 4 , a coil winding 6 , and a disc 7 . The first-stage fan rotor 1 and the second-stage fan rotor 2 constitute the low-pressure compressor system of the aero-engine, which are symmetrically located on both sides of the first-stage fan stator 3, and respectively include a plurality of fan blades 4 fixed on the circumference of the disc 7 . A ring-shaped integral permanent magnet is embedded on the wheel disc 7 to generate a symmetrical quadrupole magnetic flux. The coil winding 6 is located inside the permanent magnet. When the current passes through the coil winding 6, the current interacts with the magnetic field of the permanent magnet to generate radial ...

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Abstract

The invention provides an electromagnetically driven fan device, which is installed on an aero-engine, and includes a wheel disc, a permanent magnet, fan blades, a hollow cylindrical steel frame and coil windings; the wheel disc is in the shape of a cylinder, and A circular permanent magnet is embedded to generate a symmetrical quadrupole magnetic flux, and a plurality of fan blades are fixed on its outer periphery to form a fan rotor; the coil windings are separated into phases, grouped and stacked together, and then fixed on the core On the circumferential groove or radial yoke, a ring is formed as a whole and fixed on the cylindrical steel frame to form a fan stator. The fan stator is arranged in the fan rotor. The permanent magnet wraps the coil winding, and the permanent magnet and the coil winding There is a gap of a certain size between them, forming a gap magnetic field. The invention can realize the electromagnetization and shaftless drive of the fan rotor, improve the stability and controllable margin of the fan, greatly reduce the weight of the fan, thereby improving the efficiency of the fan of the aeroengine and the efficiency of the whole machine, reducing the weight of the engine and increasing the thrust-to-weight ratio.

Description

technical field [0001] The present invention relates to the technical field of electromagnetic drive, in particular, the present invention particularly relates to an electromagnetic drive fan device. Background technique [0002] In the future, advanced aero-engines will develop toward multi-electric or all-electric technology. Countries such as the United States, Britain, and France have launched research programs on multi-electric engines, which are expected to be practically applied between 2015 and 2020. In the IHPTET plan formulated by the United States in 1988, it was the first time to propose research on multi-electric or all-electric aeroengines supported by magnetic suspension bearings, and developed a high-temperature magnetic suspension bearing system that meets the requirements of the sky during the 10-year progress. This technology has become one of the key high technologies of advanced aero-engines in the 21st century. [0003] The so-called magnetic levitatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/02H02K1/27H02N15/00H02K7/14H02K29/00
Inventor 薛志虎关发明
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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