Title:
ELECTRONIC EXPANSION VALVE
Document Type and Number:
WIPO Patent Application WO/2023/143028
Kind Code:
A1
Abstract:
An electronic expansion valve, which comprises an outer cover (1), a valve seat (2), and a nut seat (3); the valve seat (2) and the outer cover (1) form a cavity (13); the valve seat (2) is provided with a valve port (21) and a recessed part (22) corresponding to the valve port (21); the valve seat (2) further comprises a deforming part (23) capable of deforming in the radial direction; the nut seat (3) is arranged in the cavity (13) and comprises a sleeve part (31) and a connecting part (32) integrally protrudingly arranged at an outer peripheral surface of the sleeve part (31); at least part of the connecting part (32) is arranged within the recessed part (22) and is limited within the recessed part (22) by the deforming part (23) in the axial direction.
Inventors:
CHEN YONGHAO (CN)
HUANG HONGFENG (CN)
LIU TONGHUI (CN)
HUANG HONGFENG (CN)
LIU TONGHUI (CN)
Application Number:
PCT/CN2023/071425
Publication Date:
August 03, 2023
Filing Date:
January 09, 2023
Export Citation:
Assignee:
ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)
International Classes:
F16K1/02; F16K1/32; F16K1/42; F16K31/06; F25B41/345
Foreign References:
| CN217463241U | 2022-09-20 | |||
| CN109520184A | 2019-03-26 | |||
| CN208764430U | 2019-04-19 | |||
| CN109520183A | 2019-03-26 | |||
| CN208458323U | 2019-02-01 | |||
| CN109751428A | 2019-05-14 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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