EXPANSION VALVE
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United States of America Patent
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Issued Date -
Sep 20, 2012
app pub date -
Mar 5, 2012
filing date -
Mar 14, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
An expansion valve is configured such that a shaft, a first valve, a second valve, a compression coil spring, and an adjustment screw are coaxially arranged within a body exactly below a power element, and the first valve and the second valve control the flow rate in an interlocked manner. A second valve seat of the second valve is press-fitted into the body, and an amount of press-fitting of the second valve seat into the body is adjusted such that when the first valve is in a closed state in which a first valve element is seated on a first valve seat, the second valve is in a closed state in which a second valve element is seated on the second valve seat.
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