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:
Feb. 18, 2014
Filed:
Sep. 30, 2010
Caiyi Zhan, Zhejiang Province, CN;
Ze Yuan, Zhejiang Province, CN;
Xianrang Wei, Zhejiang Province, CN;
Caiyi Zhan, Zhejiang Province, CN;
Ze Yuan, Zhejiang Province, CN;
Xianrang Wei, Zhejiang Province, CN;
Zhejiang Sanhua Co., Ltd., Xinchang County, Zhejiang Province, CN;
Abstract
The present invention provides an electronic expansion valve, comprising a leading screw, a valve needle and a valve needle sleeve. It further comprises: a washer provided in an annular groove, which is provided at the lower end of the leading screw in the circumferential direction, and a thickness of the washer is less than a width of the annular groove; the valve needle sleeve abuts against the upper surface of the washer and is fixedly connected with the valve needle; and a spring is provided between the washer and the valve needle.