Throttle device
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United States of America Patent
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Apr 17, 2018
Issued Date -
N/A
app pub date -
Feb 27, 2015
filing date -
Apr 21, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a throttle device to decompress a refrigerant cooled by a condenser in a refrigerating cycle and to deliver the refrigerant to an evaporator, where a minimum space between a needle valve and a valve port can be accurately set. Inside a cylindrical main body case including a primary chamber connected to the condenser and a secondary chamber connected to the evaporator, a valve seat member formed with a valve port and a cylindrical guide member integral to the valve seat member are provided. A coil spring to energize the needle valve toward the valve port side is provided inside the guide member. A needle portion of the needle valve protrudes from the valve port toward the primary chamber. A tip portion of the needle portion abuts against a stopper member and the tip portion is thereby positioned.
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