Title:
JET PUMP
Document Type and Number:
WIPO Patent Application WO/2023/236389
Kind Code:
A1
Abstract:
A self-priming jet pump comprising a pump body (3) having a water inlet (1) and a water outlet (2). A jet pipe (4) and an impeller (5) are arranged in the pump body (3). A fluid sequentially passes through the water inlet (1), the jet pipe (4), the impeller (5), and the water outlet (2). At least one flow increasing channel (6) is arranged on the periphery of the jet pipe (4), the flow increasing channel (6) is wound outside the jet pipe (4), and the flow increasing channel (6) is communicated with the water inlet (1) and a water inlet of the impeller (5). The fluid passing through the flow increasing channel (6) is thrown by the impeller (5) into a pressurizing cavity (12). A valve core (7) is installed on the flow increasing channel (6), and the valve core (7) moves in the flow increasing channel (6) to open or close the flow increasing channel (6). The flow increasing channel (6) is arranged to relieve the cavitation problem, and has a simple production process and low production cost.
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Inventors:
ZHANG JUNBO (CN)
YANG KE (CN)
XU HAILIANG (CN)
BAO JUNWEI (CN)
HONG LIBING (CN)
YANG KE (CN)
XU HAILIANG (CN)
BAO JUNWEI (CN)
HONG LIBING (CN)
Application Number:
PCT/CN2022/120696
Publication Date:
December 14, 2023
Filing Date:
September 23, 2022
Export Citation:
Assignee:
NINGBO JUNHE INTELLIGENT TECH CO LTD (CN)
International Classes:
F04D9/06
Foreign References:
| CN114992133A | 2022-09-02 | |||
| US2853014A | 1958-09-23 | |||
| US5474418A | 1995-12-12 | |||
| CN207333318U | 2018-05-08 | |||
| US2621596A | 1952-12-16 | |||
| US2275627A | 1942-03-10 | |||
| CN201910335203A | 2019-04-24 |
Attorney, Agent or Firm:
NINGBO CHENHUI PATENT AGENCY (GENERAL PARTNERSHIP) et al. (CN)
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