Title:
ELECTRIC VALVE
Document Type and Number:
WIPO Patent Application WO/2022/193812
Kind Code:
A1
Abstract:
Provided is an electric valve, comprising: a valve seat (10) and a valve needle (20), the valve needle (20) being installed in the valve seat (10); a valve element (30), installed at one end of the valve seat (10), a valve port being formed in the valve element (30); and a driving assembly, the driving assembly driving the valve needle (20) to axially move so as to open and close the valve port. The valve element (30) is made of a non-metal material, the inner wall or an end face of the valve element (30) forms a sealing face, and the sealing face and an outer wall face of the valve needle (20) form a soft sealing structure. The technical problem of a poor sealing performance of an electric valve can be solved by means of the soft sealing structure formed by the valve element (30) and the valve needle (20).
Inventors:
JIN JU (CN)
WANG FUGANG (CN)
ZHANG WENRONG (CN)
SONG ZHIGUO (CN)
WANG FUGANG (CN)
ZHANG WENRONG (CN)
SONG ZHIGUO (CN)
Application Number:
PCT/CN2022/072129
Publication Date:
September 22, 2022
Filing Date:
January 14, 2022
Export Citation:
Assignee:
ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)
International Classes:
F16K1/02; F16K1/226
Foreign References:
| CN107642927A | 2018-01-30 | |||
| CN204805577U | 2015-11-25 | |||
| CN203111200U | 2013-08-07 | |||
| CN206988439U | 2018-02-09 | |||
| DE102010018024A1 | 2011-10-27 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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