Title:
ELECTRONIC EXPANSION VALVE
Document Type and Number:
WIPO Patent Application WO/2021/228012
Kind Code:
A1
Abstract:
An electronic expansion valve, comprising a valve seat (11), a nut assembly (12), a valve shaft portion (22), a valve needle (21), and a movable stop portion (20a); the movable stop portion (20a) is directly or indirectly fixedly connected to the valve shaft portion (22), the valve seat (11) comprises a valve port portion (113), and the nut assembly (12) is fixedly connected to the valve seat (11); the nut assembly (12) comprises a nut (121) and a connecting sheet (122), the nut (121) comprises a first guiding portion (12a), a second guiding portion (12c), an internal thread portion (12b) and a fixed stop portion (12d); the first guiding portion (12a) is closer to the valve port portion (113) than the internal thread portion (12b), the second guiding portion (12c) is farther away from the valve port portion (113) than the internal thread portion (12b), and the fixed stop portion (12d) can abut against the movable stop portion (20a).
Inventors:
WEI XIANRANG (CN)
Application Number:
PCT/CN2021/092625
Publication Date:
November 18, 2021
Filing Date:
May 10, 2021
Export Citation:
Assignee:
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD (CN)
International Classes:
F16K1/04; F16K1/32; F16K1/36; F16K27/02; F16K31/06
Foreign References:
| CN208010998U | 2018-10-26 | |||
| CN110345291A | 2019-10-18 | |||
| CN108692042A | 2018-10-23 | |||
| CN106763989A | 2017-05-31 | |||
| CN104534158A | 2015-04-22 | |||
| JP2014137127A | 2014-07-28 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF: