Centrifugal impeller

Heat exchange – With impeller or conveyor moving exchange material – Mechanical gas pump

Reexamination Certificate

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Details

C165S080300

Reexamination Certificate

active

10978228

ABSTRACT:
An improved centrifugal impeller having between 20 and 26 rearwardly curved blades blades, a ratio of blade annulus width to wheel radius between 0.31 and 0.37, and an inlet blade angle in the range 32° to 36° and a discharge blade angle in the range 36° to 40°.

REFERENCES:
patent: 4362468 (1982-12-01), Nishikawa et al.
patent: 4808068 (1989-02-01), Asbjornson et al.
patent: 5021696 (1991-06-01), Nelson
patent: 5707209 (1998-01-01), Iyer et al.
patent: 5814908 (1998-09-01), Muszynski
patent: 6092988 (2000-07-01), Botros
patent: 6139273 (2000-10-01), Schwarz et al.
patent: 6244331 (2001-06-01), Budelman
patent: 2342123 (2000-04-01), None

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