Title:
VORTEX-FREE WATER PUMP CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2019/000115
Kind Code:
A1
Abstract:
A vortex-free water pump control valve, comprising: a valve body (1), a valve cover (2), a valve flap (3) and an opening and closing device (4); the valve body (1) is provided with a water inlet (11), a water outlet (12) and an assembly opening (13); the water inlet (11), the water outlet (12) and the assembly opening (13) are in communication with each other at an inner side of the valve body (1); the valve body (1) is provided therein with a valve seat (14); the valve cover (2) is disposed on the assembly opening (13) of the valve body (1) and is provided with a skirt sleeve (21); the valve flap (3) is movably disposed at an inner side of the skirt sleeve (21) of the valve cover (2), and the valve flap (3) is arranged so as to be in transmission connection with the opening and closing device (4); the valve flap (3) is provided thereon with a groove (36) and a 3-15 block copper-zinc alloy guiding block (37) which extends in the axial direction; an inner side wall of the skirt sleeve (21) is plasma-sprayed with a chromium oxide ceramic coating having a thickness of 0.1-0.6 mm; an angle between the axial center line between the water inlet (11) and the water outlet (12) as well as the axial center line of the valve cover (2) is 65±3°; and the opening and closing device (4) is fixed on the valve cover (2).
Inventors:
CHEN SILIANG (CN)
YU ZHIRI (CN)
PENG JIANQING (CN)
CHEN WENGONG (CN)
XIE HONGWEN (CN)
WEI ZHIQING (CN)
YU ZHIRI (CN)
PENG JIANQING (CN)
CHEN WENGONG (CN)
XIE HONGWEN (CN)
WEI ZHIQING (CN)
Application Number:
PCT/CN2017/000443
Publication Date:
January 03, 2019
Filing Date:
July 13, 2017
Export Citation:
Assignee:
QUANZHOU HUHUANG VALVES MFG CO LTD (CN)
International Classes:
F16K1/00
Foreign References:
| CN107309611A | 2017-11-03 | |||
| CN207080603U | 2018-03-09 | |||
| CN102562616A | 2012-07-11 | |||
| CN201258849Y | 2009-06-17 | |||
| CN202091214U | 2011-12-28 | |||
| CN202001633U | 2011-10-05 | |||
| JP2002286158A | 2002-10-03 |
Attorney, Agent or Firm:
QUANZHOU CHENGDE INTELLECTUAL PROPERTY AGENCY FIRM(ORDINARY PATERNERSHIP) (CN)
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