Screw compressor
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United States of America Patent
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Apr 16, 2013
Grant Date -
Jun 24, 2010
app pub date -
May 7, 2008
filing date -
May 23, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A screw compressor includes a casing, a screw rotor and a gate rotor. The casing has a cylinder. The screw rotor is cylindrical-shaped and configured to be fitted into the cylinder. The gate rotor is configured to be engaged with the screw rotor. A, outlet width of a seal surface of the casing on a gas-outlet side of the screw rotor is larger than an inlet width of the seal surface on a gas-inlet side of the screw rotor. The seal surface of the casing is opposed to one surface of the gate rotor.
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