With means for re-entry of working fluid to blade set (e.g., re-entry type device, passage, etc.) > Plural, independent, serially acting re-entry means > Re-entry from opposite sides of blade face > Patents

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Class Information
Number: 415/57.3
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.) > Plural, independent, serially acting re-entry means > Re-entry from opposite sides of blade face
Description: Device wherein two of the (reentry) means direct the working fluid* back to the first blade or blade row from separate locations which locations substantially confront (oppose) each other across the blade or the blade row.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7600965	Flow structure for a turbocompressor	Oct. 13, 2009
7475539	Inclined rib ported shroud compressor housing	Jan. 13, 2009
6884021	Single cascade multistage turbine	Apr. 26, 2005
6494673	Turbine engine	Dec. 17, 2002
6116851	Channel-type pump	Sep. 12, 2000
6004093	Portable air-blowing working machine	Dec. 21, 1999
5308225	Rotor case treatment	May. 3, 1994
5282718	Case treatment for compressor blades	Feb. 1, 1994