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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12624871 B1

PDFFull Text
Date of Patent:
May. 12, 2026

Filed:

Sep. 30, 2022

Electronic expansion valve

Applicant:

Zhejiang Dunan Artificial Environment Co., Ltd., Shaoxing, CN;

Inventors:

Yuchen He, Shaoxing, CN;

Guanjun Xu, Shaoxing, CN;

Yonghao Chen, Shaoxing, CN;

Hongfeng Huang, Shaoxing, CN;

Assignee:

ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD., Shaoxing, CN;

Attorney:

The Sun IP Law

Primary Examiner:

Matthew W Jellett

Int. Cl.
CPC ...
F16K 31/50 (2006.01); F16K 27/02 (2006.01); F16K 31/04 (2006.01); F25B 41/34 (2021.01);
U.S. Cl.
CPC ...
F25B 41/34 (2021.01); F16K 27/029 (2013.01); F16K 31/04 (2013.01); F16K 31/047 (2013.01); F16K 31/504 (2013.01); F16K 31/508 (2013.01);
Abstract

An electronic expansion valve, including a valve body, the valve body having an accommodating cavity and a valve port, and the accommodating cavity being in communication with the valve port; a rotor arranged in the accommodating cavity; a stator assembly; a screw rod assembly arranged in the accommodating cavity, the screw rod assembly including a screw rod and a nut sleeve, the rotor being fixedly connected to an end of the screw rod away from the valve port; and a valve sleeve, the screw rod being in driving connection with the valve sleeve, where when the valve port is in a fully open state, the number of pulses is A, and when a central line of the stator assembly coincides with a central line of the rotor, the corresponding number of pulses is B, where 0.3*A≤B≤0.7*A.

Find Patent Forward Citations

He, Yuchen. (2026). Electronic expansion valve (U.S. Patent No. 12624871). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12624871

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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