Title:
AIR BLOWING DEVICE
Document Type and Number:
Japanese Patent JP2020109258
Kind Code:
A
Abstract:
To improve air blowing efficiency of an air blowing device.SOLUTION: An air blowing device comprises a rotor blade 1 capable of rotating around a central axis 20 extending in a vertical direction, a motor 2 for rotating the rotor blade, and a housing 3 surrounding the rotor blade and the motor. The housing comprises a plurality of stator blades 32 extending forward in a rotation direction of the rotor blade as going downward in an axial direction, a porous member 35 provided with a plurality of hole parts 350 arranged in a radial direction and a circumferential direction respectively, and a cylindrical part 31 extending in the axial direction and arranged outside the porous member in the radial direction. The hole parts penetrate to a lower surface from an upper surface of the porous member. The stator blades are arranged below the rotor blade in the axial direction. An axial upper end part of the porous member is arranged between an axial lower end part of the rotor blade and axial upper end parts of the stator blades in the axial direction.SELECTED DRAWING: Figure 2
Inventors:
TOKUNO YUTA
Application Number:
JP2018248648A
Publication Date:
July 16, 2020
Filing Date:
December 28, 2018
Export Citation:
Assignee:
NIHON DENSAN KK
International Classes:
F04D29/54
Attorney, Agent or Firm:
Sano patent office