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Electric fuel oil jet propeller

A technology of a propeller and a fuel nozzle is applied in the field of electric fuel jet propulsion, which can solve the problems of low working efficiency, high production cost and high technical difficulty of an electric ducted fan engine, and achieves reduction of processing difficulty, light weight, and economical improvement. sexual effect

Inactive Publication Date: 2010-06-09
NANCHANG HANGKONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Like the usual large and medium-sized aviation jet engines, they have high technical difficulty, complex structure, difficult processing, high production cost, and it is difficult to enter the market at a low price
However, due to its simple structure, easy processing, and low production cost, driven by the development of high-energy-density batteries, electric ducted fan engines are widely used as the main power source for small unmanned aerial vehicles. The working efficiency of the electric ducted fan engine is still relatively low, and the thrust produced is relatively small, so it is difficult to use it on larger-sized aircraft

Method used

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  • Electric fuel oil jet propeller
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Please refer to the accompanying drawings, in the figure, the fan blade 4 is fixed on the fan hub 3, and the fan hub 3 is installed on the outer rotor of the outer rotor DC motor 2, and is fastened uniformly in the circumferential direction with three screws. The front end of the fan hub 3 has a similar funnel-shaped hole and the inner cavity adopts spiral cooling fins 11, and the fins are arranged at intervals between long and short blades (as attached figure 2 As shown), the spiral heat dissipation fins 11 can not only absorb the heat of the outer rotor DC motor, but also form a simple centrifugal fan. When the outer rotor DC motor 2 rotates at high speed, the airflow is sucked from the opening at the front end of the fan hub 3 and flows through the ribs. The heat is taken away during the chip, and then flows out from the heat shield 6 and finally enters the ...

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Abstract

The invention discloses an electric fuel oil jet propeller which comprises an air inlet, a fan, a motor, an air deflector, a combustion chamber and a tailpipe with the thrust of 1-50kg. The electric fuel oil jet propeller is characterized in that fan blades are fixed on a fan hub which is fixed on an outer rotor direct-current motor rotor; the motor is fixed on an air deflector inner support ring through a bolt; an air deflector outer ring is embedded on the inner wall of a ducted casing; a heat insulation shield is arranged at the rear end of the air deflector inner support ring; the combustion chamber is arranged at the middle-rear end of the ducted casing; a pneumatic fuel oil nozzle ring is arranged at the front section of the combustion chamber and communicated with an oil pipeline; a falcate flame stabilizer is arranged at the rear end of the pneumatic fuel oil nozzle ring; an igniter is arranged at the rear end of the falcate flame stabilizer, passes through the combustion chamber and the ducted casing and is fixed on the outer wall surface of the ducted casing; and the inner wall of the ducted casing adopts a heat insulation coating. The propeller can be used as main power of small and middle size delivery tools and has simple structure, small size, light weight and large working thrust.

Description

technical field [0001] The present invention relates to a propeller, more particularly to an electric fuel jet propeller. Background technique [0002] With the continuous development of aircraft design and manufacturing technology, higher requirements are put forward for its propulsion device. Both propulsion efficiency and economic performance have risen to higher requirements. Like the usual large and medium-sized aviation jet engines, they have high technical difficulty, complex structure, difficult processing, high production cost, and it is difficult to enter the market at a low price. However, due to its simple structure, easy processing, and low production cost, driven by the development of high-energy-density batteries, electric ducted fan engines are widely used as the main power source for small unmanned aerial vehicles. The working efficiency of the electric ducted fan engine is still relatively low, and the thrust produced is relatively small, so it is difficu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K5/00F02K7/00
Inventor 林生志江善元王斯财许丽
Owner NANCHANG HANGKONG UNIVERSITY
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