F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
230/34
F04C 18/16 (2006.01) F04B 49/02 (2006.01)
Patent
CA 1282753
VARIABLE VOLUME RATIO SCREW COMPRESSOR WITH STEP CONTROL ABSTRACT An axial flow helical screw compressor with a slide valve and slide stop mounted end to end in communication with the intermeshing rotors has means for changing the volume ratio during operation by stepwise movement of the slide stop and for changing the capacity during operation in infinitely variable fashion, both in response to system operating conditions. In the event of interference between the movements of the slide stop and slide valve, the components are designed so that the movements of the slide stop overpowers that of the slide valve.
515405
Murphy David A.
Nemit Paul Jr.
Pillis Joseph W.
Spellar Peter C.
Fetherstonhaugh & Co.
Frick Company
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