Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 18, 2014
Patent Application Number
12895042
Date Filed
September 30, 2010
Patent Citations Received
Patent Primary Examiner
Patent 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.
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