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Class Information
Number: 415/58.6
Name: Rotary kinetic fluid motors or pumps > With means for re-entry of working fluid to blade set (e.g., re-entry type device, passage, etc.) > Open recirculation from and to blade set
Description: Device wherein the (reentry) means directs the working fluid* from and back to the blade* or blade row along a circulatory path which lies entirely within an unconfined and unobstructed (i.e., open, nonpassageway) area.

Patents under this class:

Patent Number Title Of Patent Date Issued
8465251 Compressor device Jun. 18, 2013
8257022 Fluid flow machine featuring a groove on a running gap of a blade end Sep. 4, 2012
8100629 Turbomachine casing with treatment, a compressor, and a turbomachine including such a casing Jan. 24, 2012
8070416 Flow regulation mechanism for turbocharger compressor Dec. 6, 2011
7870731 Exhaust gas turbocharger for an internal combustion engine Jan. 18, 2011
7338251 Turbo compressor Mar. 4, 2008
6881025 Suction cup vortex attractor Apr. 19, 2005
6729839 Toroidal and compound vortex attractor May. 4, 2004
6726441 Compressor, in particular for an internal combustion engine Apr. 27, 2004
5466118 Centrifugal compressor with a flow-stabilizing casing Nov. 14, 1995
5403149 Stabailization device for extending the characteristic map of a compressor Apr. 4, 1995
4792275 Pump construction Dec. 20, 1988
4781530 Compressor range improvement means Nov. 1, 1988
4594052 Centrifugal pump for liquids containing solid material Jun. 10, 1986
4475868 Free-flow-pump Oct. 9, 1984
4474530 Method and apparatus for degrading antimisting fuel Oct. 2, 1984
4386886 Adjustable vortex pump Jun. 7, 1983
4338062 Adjustable vortex pump Jul. 6, 1982
4212585 Centrifugal compressor Jul. 15, 1980
4063848 Centrifugal compressor vaneless space casing treatment Dec. 20, 1977

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