VALVE ASSEMBLY AND ELECTRONIC EXPANSION VALVE HAVING SAME

WIPO Patent Application WO/2023/030462

A1

A valve assembly and an electronic expansion valve having same. The valve assembly comprises: a valve seat (10) provided with an upper valve cavity (10a) and a lower valve cavity (10b) communicated with each other in sequence, the valve seat (10) being provided with a valve port (14), and the valve port (14) being located on the end of the lower valve cavity (10b) distant from the upper valve cavity (10a); and a guide sleeve (20) arranged in the valve seat (10), the guide sleeve (20) passing through the upper valve cavity (10a) and the lower valve cavity (10b), the distance between the end of the guide sleeve (20) close to the valve port (14) and the valve port (14) is H, and the diameter of the lower valve cavity (10b) is D, wherein the ratio of H to D is between 0.4 and 0.6. The valve assembly and the electronic expansion valve can solve the problem in the prior art of relatively high noise caused by a refrigerant flowing through the electronic expansion valve during operation of a refrigeration system.

HE YUCHEN (CN)
XU GUANJUN (CN)
CHEN YONGHAO (CN)
ZHAO JUN (CN)
LIU TONGHUI (CN)
HUANG HONGFENG (CN)

PCT/CN2022/116591

March 09, 2023

September 01, 2022

Click for automatic bibliography generation  

ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)

F16K1/32

CN215806329U	2022-02-11
CN216158291U	2022-04-01
CN216158455U	2022-04-01
CN210123018U	2020-03-03
CN112901801A	2021-06-04
CN211145371U	2020-07-31
JP2003148643A	2003-05-21
CN112212016A	2021-01-12
JP2014137127A	2014-07-28

KANGXIN PARTNERS, P.C. (CN)

View/Download PDF      PDF Help

Previous Patent: DISTRIBUTED DATABASE DETECTION METHOD AND APPARATUS

Next Patent: OPTICAL MODULE AND OPTICAL PROCESSING METHOD