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.:
Date of Patent:
Jul. 14, 2026
Filed:
Nov. 30, 2022
Zhejiang Dunan Artificial Environment Co., Ltd., Shaoxing, CN;
ZHEJIAN DUNAN ARTIFICIAL ENVIRONMENT CO., LTD., Shaoxing, CN;
Abstract
An electronic expansion valve, including: a valve seat, wherein the valve seat is provided with a first mounting channel extending in an axial direction, and a valve port is provided in the first mounting channel; a valve needle, which is movably mounted in the first mounting channel to block or avoid of the valve port, wherein a mounting gap is provided between a wall surface of the first mounting channel and an outer wall of the valve needle; and a first sealing piece, which is mounted on the valve needle, wherein the first sealing piece is located in the mounting gap, so as to seal the mounting gap by means of the first sealing piece. The electronic expansion valve can solve the technical problems in the related art of poor sealing performance of an electronic expansion valve and a valve needle being prone to moving.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile