Electronic expansion valve
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Mar 1, 2022
Grant Date -
Dec 5, 2019
app pub date -
Jan 24, 2018
filing date -
Jan 24, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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