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Class Information
Number: 415/58.4
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.) > Re-entry working fluid joins inlet working fluid upstream of runner
Description: Device wherein the means directs the (reentry) working fluid* portion to a location where working fluid flowing to the runner* has not yet been acted upon by the runner (i.e., upstream of the runner and prior to initial entry to the runner), at which location the (reentry) working fluid portion is merged with the working fluid flowing to the runner.

Sub-classes under this class:

Class Number Class Name Patents
415/58.5 Axial flow runner 63

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8690522 Multistage compressor with improved map width performance Apr. 8, 2014
8596035 Apparatus and method for reducing air mass flow for extended range low emissions combustion for single shaft gas turbines Dec. 3, 2013
8556573 Diffuser with enhanced surge margin Oct. 15, 2013
8522549 Radial compressor, particularly for an exhaust gas turbocharger of an internal combustion engine Sep. 3, 2013
8517664 Turbocharger Aug. 27, 2013
8500391 Method and apparatus for starting supersonic compressors Aug. 6, 2013
8465251 Compressor device Jun. 18, 2013
8454299 Radial compressor Jun. 4, 2013
8414249 Multistage compressor with improved map width performance Apr. 9, 2013
8307648 Compressor for an internal combustion engine Nov. 13, 2012
8287233 Centrifugal compressor with a re-circulation venturi in ported shroud Oct. 16, 2012
8272832 Centrifugal compressor with surge control, and associated method Sep. 25, 2012
8256218 Compressor Sep. 4, 2012
8257017 Method and device for cooling a component of a turbine Sep. 4, 2012
8235648 Diffuser with enhanced surge margin Aug. 7, 2012
8210794 Axial-centrifugal compressor with ported shroud Jul. 3, 2012
8206080 Gas turbine engine with improved thermal isolation Jun. 26, 2012
8177489 Axial tip turbine driven pump May. 15, 2012
8162591 Multistage compressor for a gas turbine, comprising discharge ports and injection ports to stabilize the compressor flow Apr. 24, 2012
8123459 Impeller, fuel pump having the impeller, and fuel supply unit having the fuel pump Feb. 28, 2012
8096783 Apparatus for delivering a regulated supply of a gas, particularly respiratory assistance apparatus Jan. 17, 2012
8075247 Centrifugal impeller with internal heating Dec. 13, 2011
8070416 Flow regulation mechanism for turbocharger compressor Dec. 6, 2011
8061974 Compressor with variable-geometry ported shroud Nov. 22, 2011
8021104 Compressor apparatus with recirculation and method therefore Sep. 20, 2011
7942625 Compressor and compressor housing May. 17, 2011
7874789 Compressor and compressor housing Jan. 25, 2011
7828509 Fuel pump for engine Nov. 9, 2010
7775759 Centrifugal compressor with surge control, and associated method Aug. 17, 2010
7690886 Pump and liquid supply apparatus having the pump Apr. 6, 2010
7600961 Fluid transfer controllers having a rotor assembly with multiple sets of rotor blades arranged in proximity and about the same hub component and further having barrier components configured to Oct. 13, 2009
7575411 Engine intake air compressor having multiple inlets and method Aug. 18, 2009
7556473 Control unit for compressor Jul. 7, 2009
7476076 Centrifugal fan Jan. 13, 2009
7475539 Inclined rib ported shroud compressor housing Jan. 13, 2009
7407364 Turbocharger compressor having ported second-stage shroud, and associated method Aug. 5, 2008
7374394 Multifunctional back-flowing strong-suction blower May. 20, 2008
7261513 Centrifugal compressor Aug. 28, 2007
7112033 Hygienic mechanical seal flushing system for pure liquids in sanitary centrifugal pumps Sep. 26, 2006
7097414 Inducer tip vortex suppressor Aug. 29, 2006
7094016 Multi-phase flow pumping means and related methods Aug. 22, 2006
7083379 Compressor Aug. 1, 2006
7066712 Turbofan and air conditioner having the turbofan Jun. 27, 2006
7025557 Secondary flow control system Apr. 11, 2006
7021058 Supercharging air compressor for an internal combustion engine, internal combustion engine and method for that purpose Apr. 4, 2006
6945748 Centrifugal compressor with channel ring defined inlet recirculation channel Sep. 20, 2005
6935833 Recirculation structure for turbo chargers Aug. 30, 2005
6932563 Apparatus, system and method for minimizing resonant forces in a compressor Aug. 23, 2005
6898867 Air compression variable heating system May. 31, 2005
6881025 Suction cup vortex attractor Apr. 19, 2005

1 2 3

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