Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2024/080381
Kind Code:
A1
Abstract:
A motor (1) comprises: a shaft (40); cylinders (5a, 5b) rotatably supported on the shaft (40); an impeller (20) fixed to the cylinders (5a, 5b); a rotor (30) fixed to the impeller (20); a stator (90) surrounding the rotor (30); spaces (91) between the shaft (40) and the cylinders (5a, 5b); and a space (92) between the rotor (30) and the stator (90). The spaces (91, 92) are spaces into which a liquid enters, a plurality of first grooves (59) are formed in at least either of an inner surface (54) of the cylinders (5a, 5b) or an outer surface (32) of the shaft (40), and a plurality of second grooves (69) are formed in at least either of an inner surface (63) of the stator (90) or an outer surface (32) of the rotor (30).
Inventors:
KODAMA MITSUO (JP)
Application Number:
PCT/JP2023/037350
Publication Date:
April 18, 2024
Filing Date:
October 16, 2023
Export Citation:
Assignee:
MINEBEA MITSUMI INC (JP)
International Classes:
H02K7/08; F04D29/047; H02K7/14
Attorney, Agent or Firm:
TORANOMON INTELLECTUAL PROPERTY FIRM (JP)
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