Title:
CENTRIFUGAL WATER PUMP
Document Type and Number:
WIPO Patent Application WO/2022/042272
Kind Code:
A1
Abstract:
A centrifugal water pump, comprising a double-output shaft motor (1), a water pump assembly provided on the left side of the double-output shaft motor (1), and a water filling pump assembly provided on the right side of the double-output shaft motor. The water filling pump assembly is used for filling water in a liquid outlet pipe (22) of the water pump assembly before the water pump assembly is started; a left coupling assembly is provided between a left rotating shaft (5) of the water pump assembly and a left shaft (11) of the double-output shaft motor (1); and a right coupling assembly is provided between a right rotating shaft (91) of the water filling pump assembly and a right shaft (12) of the double-output shaft motor (1). The water filling pump assembly of the centrifugal water pump can automatically perform pump priming, and the switching between the water pump assembly and the water filling pump assembly is implemented by forward and reverse rotation of the double-output shaft motor.
Inventors:
DUAN JINGSHENG (CN)
LIU QIUYAN (CN)
LIU QIUYAN (CN)
Application Number:
PCT/CN2021/111405
Publication Date:
March 03, 2022
Filing Date:
August 09, 2021
Export Citation:
Assignee:
ZHEJIANG LOWA PUMP CO LTD (CN)
International Classes:
F04D9/04; F04D1/00; F04D13/06; F04D29/044
Foreign References:
| CN111946627A | 2020-11-17 | |||
| CN110397603A | 2019-11-01 | |||
| CN2764968Y | 2006-03-15 | |||
| CN109236665A | 2019-01-18 | |||
| CN208311059U | 2019-01-01 | |||
| CN110259696A | 2019-09-20 | |||
| US20020114707A1 | 2002-08-22 |
Attorney, Agent or Firm:
TAIZHOU HANGXIN PATENT AGENCY OFFICE (GENERAL PARTNERSHIP) (CN)
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