Title:
THRUST GENERATING DEVICE
Document Type and Number:
Japanese Patent JP2021020633
Kind Code:
A
Abstract:
To provide a thrust generating device in which motor stop (locking) due to foreign matter caught in a radial gap between a stator and a rotor can be prevented.SOLUTION: A thrust generating device 12 is applied to flight equipment and has a motor 10 (brushless motor) and a propeller 11 fixed to a shaft 32 of the motor 10. A first cooling hole 50 is formed in a rotor member 44 (first facing portion) of a rotor 24, and a second cooling hole 72 is formed in a disk portion 68 (second facing portion) of a base member 26. In the motor 10, the width dimension [mm] of a gap 66 between a stator 22 and the rotor 24 in the radial direction of the motor 10 is set in such a manner that, when the steady thrust [N] of the propeller 11 that balances with the weight of the flight equipment on which the thrust generating device 12 is mounted is represented as B and the width dimension of the gap 66 is represented as A, a relation A>B×0.017 is satisfied.SELECTED DRAWING: Figure 3
Inventors:
INOUE YOSHIYASU
Application Number:
JP2019140000A
Publication Date:
February 18, 2021
Filing Date:
July 30, 2019
Export Citation:
Assignee:
DENSO CORP
International Classes:
B64D33/08; H02K7/14
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office