Multistage blowdown valve for a compressor system
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United States of America Patent
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-
Sep 4, 2001
Issued Date -
N/A
app pub date -
Oct 21, 1999
filing date -
Oct 28, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multi-stage blowdown valve is provided that uses a single control signal to simultaneously decompress the interstage and the second stage in a compressor system. The valve uses a series of sliding spools located linearly within a single bore to either prevent or allow fluid communication between two isolated passageways each having an inlet port and a discharge port. The valve, when used as a two stage blowdown valve in a multi-stage compressor system, can prevent compressor failure from occurring by ensuring that both the interstage and the second stages are decompressed, not only the interstage.
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