Turbine-compressor unit with means for preventing oil leakage

Details Turbine-compressor unit with means for preventing oil leakage Turbine-compressor unit with means for preventing oil leakage

F - Mech Eng,Light,Heat,Weapons

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F04D 17/10 (2006.01) F02B 37/00 (2006.01)

Patent

CA 1082150

TURBINE-COMPRESSOR UNIT WITH MEANS FOR PREVENTING OIL LEAKAGE ABSTRACT OF THE DISCLOSURE In a centrifugal compressor unitized with a turbine to provide a turbosupercharger or the like, the width of an annular throat through which a gas accelerated by an impeller passes into a spiral outlet passage is made less than the peripheral width or depth of the passages formed in the impeller. The development of negative pressure at the back of the impeller under various ope- rating conditions is thus minimized, so that lubricating oil in the turbine-compressor unit can be substantially prevented from leakage by suction.

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