Valve Needle and Electronic Expansion Valve Having Valve Needle
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United States of America
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Issued Date -
Nov 7, 2024
app pub date -
Aug 31, 2022
filing date -
Aug 31, 2022
priority date (Note) -
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Abstract
Disclosed are a valve needle and an electronic expansion valve having the valve needle. The valve needle is provided with a connecting end and a blocking end that are arranged opposite to each other; the blocking end includes a blocking segment, a first opening segment, and a second opening segment that are sequentially connected in an axial direction; the blocking segment cooperates with a valve port to block the valve port; a cross sectional area of the blocking segment close to the connecting end is greater than a cross sectional area of the blocking segment distant from the connecting end; a cross sectional area of the second opening segment close to the connecting end is greater than a cross sectional area of the second opening segment distant from the connecting end; and a cross sectional area of the first opening segment remains unchanged.
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