Helical screw compressor comprising a cooling jacket
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United States of America Patent
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Apr 6, 2010
Grant Date -
Nov 20, 2008
app pub date -
Jun 9, 2006
filing date -
Dec 8, 2005
priority date (Note) -
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Abstract
A screw compressor rotor housing is surrounded by a cooling housing that forms an annular cooling chamber. The cooling chamber is interrupted at one point by a separating wall that connects the rotor housing to the cooling housing. Coolant is fed at an inlet opening and is directed at the bottom side of the separating wall by an entrance channel, is redirected, and flows around the rotor housing until it reaches the top side of the separating wall. The coolant is redirected and is withdrawn through an exit channel that runs upward to the outlet opening. A bleed opening in the wall of the entrance channel and a vent opening in the wall of the exit channel allow for a residual amount of air to remain in the cooling chamber when it is filled with coolant, and for a residual fluid to remain when it is emptied.
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