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:
Mar. 01, 2022
Filed:
Jan. 24, 2018
Zhejiang Sanhua Intelligent Controls Co., Ltd., Shaoxing, CN;
Xianrang Wei, Shaoxing, CN;
Zhejiang Sanhua Intelligent Controls Co., Ltd., Shaoxing, CN;
Abstract
An electronic expansion valve includes: a valve seat, the valve seat has a valve cavity and is provided with a valve port; a valve needle, matching the valve port and used to perform flow adjustment of the electronic expansion valve; a lead screw, forming a floating connection to the valve needle via a barrel portion; and a nut, wherein a threaded fit is formed between the nut and the lead screw, and a lower portion of the nut is provided with a nut guiding portion. A guide component is fixedly connected to the valve seat. The guide component guides both the barrel portion and the valve needle. The electronic expansion valve of the invention is provided with the guide component, and the guide component can guide both the valve needle and the barrel portion, effectively preventing abnormal wear caused by radial deviation of the valve needle and the barrel portion.