Device for controlling the internal compression in a screw compressor
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United States of America Patent
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Jun 27, 1989
Issued Date -
N/A
app pub date -
Mar 4, 1985
filing date -
Apr 30, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a device for controlling the internal compression in a screw compressor and to a screw compressor equipped with a device for internal compression control. In the compressor housing (10) an axially movable sliding vlave (17) for controlling the internal compression is located in paralllel with the rotors on the discharge side thereof. In the position yielding the highest internal compression, the sliding valve extends over the major part of the length of the rotors and outwardly over the inlet end plane (18) of the compressor.
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