Title:
CLOSED FAN FOR SHIP
Document Type and Number:
WIPO Patent Application WO/2020/097951
Kind Code:
A1
Abstract:
Provided is a closed fan for ship, comprising a front shell (1), a front middle shell (2), a rear middle shell (3), a rear shell (4), a motor (5), a front impeller (6), a front guide vane body (7), a rear impeller (8) and a rear guide vane body (9), wherein, the front impeller (6) and the front guide vane body (7) are arranged in a front half shell formed by connecting the front shell (1) and the front middle shell (2), the rear impeller (8) and the rear guide vane body (9) are arranged in a rear half shell formed by connecting the rear shell (4) and the rear middle shell (3), the front middle shell (2) and the rear middle shell (3) are connected front and back to complete connection of the front half shell and the rear half shell, the motor (5) fixedly penetrates through the front guide vane body (7), a front output shaft (51) of the motor (5) extends into the front impeller and is connected with the front impeller (6), and a rear output shaft (52) of the motor extends into the rear impeller and is connected with the rear impeller (8). The motor (5) is connected and fixed to the front middle guide vane body (7) in the whole shell in a penetrating mode, the motor (5) does not need to be provided with a cooling fan, noise sources are reduced, noise of the fan can be effectively lowered, and the mute ventilation requirement is met.
Inventors:
JUAN ZHANG (CN)
Application Number:
PCT/CN2018/116431
Publication Date:
May 22, 2020
Filing Date:
November 20, 2018
Export Citation:
Assignee:
JIANGSU TOMSON NEW MATERIAL TECH CO LTD (CN)
International Classes:
F04D25/08; F04D29/58
Foreign References:
| CN108240344A | 2018-07-03 | |||
| CN205101263U | 2016-03-23 | |||
| CN104389800A | 2015-03-04 | |||
| CN205895649U | 2017-01-18 | |||
| CN206682002U | 2017-11-28 | |||
| US20050002781A1 | 2005-01-06 |
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