Title:
PUMP
Document Type and Number:
WIPO Patent Application WO/2023/203743
Kind Code:
A1
Abstract:
A pump comprises: a motor; an impeller that moves a liquid upon receiving an output of the motor; a casing that has formed therein a fluid flow path in which the liquid flows, and that accommodates the impeller in an accommodating space; and a frame that connects the motor to the casing. The motor has: a stator; a rotor that has a fixed shaft connected to the impeller and that is arranged rotatably; a motor case inside which the stator and the rotor are housed and inside which the stator is fixed; a bearing that rotatably supports the shaft; and a resin-made bracket that is disposed at the top of the frame and that supports the bearing. The bracket has a joining part, on an outer circumferential surface of an outer circumferential wall thereof, that abuts and joins an inner circumferential surface of motor case section which is formed in a cylindrical shape, and an inner circumferential surface of a frame section which is formed in a cylindrical shape. The bracket is provided such that the joining sections of the bracket and the motor case and the joining sections of the bracket and the frame are located on the same cylinder.
Inventors:
TSURUHA JUN (JP)
NABIKA RYO (JP)
TOKUHISA TAICHI (JP)
NABIKA RYO (JP)
TOKUHISA TAICHI (JP)
Application Number:
PCT/JP2022/018506
Publication Date:
October 26, 2023
Filing Date:
April 22, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04D29/60; F04D29/62
Domestic Patent References:
| WO2021205607A1 | 2021-10-14 |
Foreign References:
| JP2010159696A | 2010-07-22 | |||
| US4810175A | 1989-03-07 | |||
| JPS50148102U | 1975-12-09 | |||
| JPH07177699A | 1995-07-14 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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