Centrifugal pump

Details Centrifugal pump Centrifugal pump

2007-02-13

2007-02-13

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Radial flow runner portion guides re-entry working fluid

C415S106000, C415S171100, C416S181000

Reexamination Certificate

active

10194541

ABSTRACT:
A centrifugal pump, the impeller (2) of the pump having one or more holes through the impeller adjacent to its hub. The hole or holes (7) are positioned between the vanes (3) of the impeller and closer to the hub than the periphery of the impeller. The total area of the holes is more than 0.4% of the area of the impeller, preferably 0.5-0.6% of the area of the impeller or more than 2% of the inlet area of the pump, preferably 2.5-5% of the inlet area. Preferably there is a cavity or a pit (8) at the back of the impeller.

REFERENCES:
patent: 772532 (1904-10-01), Ray
patent: 948228 (1910-02-01), Krough
patent: 1871747 (1932-08-01), Schlachter
patent: 1967316 (1934-07-01), Meeker
patent: 3230890 (1966-01-01), Hidekuni et al.
patent: 3316848 (1967-05-01), Egger
patent: 3663117 (1972-05-01), Warren
patent: 4190396 (1980-02-01), Tomioka et al.
patent: 4884945 (1989-12-01), Boutin et al.
patent: 4936744 (1990-06-01), Dosch et al.
patent: 5156522 (1992-10-01), Tessier
patent: 5570998 (1996-11-01), Nomoto
patent: 5609468 (1997-03-01), Burgess
patent: 5628616 (1997-05-01), Lee
patent: 5816784 (1998-10-01), Postuchow et al.
patent: 5921748 (1999-07-01), Frater
patent: 6224322 (2001-05-01), Calboreanu
patent: 196 06 856 (1996-08-01), None

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