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Patent Searching and Data


Title:
PRESSURIZING CENTRIFUGAL PUMP
Document Type and Number:
Japanese Patent JP2006183521
Kind Code:
A
Abstract:

To provide a pressurizing centrifugal pump capable of obtaining high pressure by forming a fluid passage in such a manner that cross section area thereof gradually gets larger from a suction port toward a delivery port and gets smaller after that, and capable of facilitating manufacturing work for changing cross section of the fluid passage.

Diameter D2 of an impeller 2 is formed smaller than inner diameter D1 of a drum shape casing 1, a rotation center C2 of the impeller and a center C1 of the drum shape casing are shifted to make an outer circumference of the impeller close to an inner surface of a circumference wall 10b of the drum shape casing, the fluid passage 3 making radial gap S between the outer circumference of the impeller and the inner circumference of the drum shaped casing change is formed, to make the fluid passage formed in such a manner that cross section thereof gradually gets larger from the suction port toward the delivery port and gets smaller after that.


Inventors:
Komaki, Keiichi
Application Number:
JP2004000376862
Publication Date:
July 13, 2006
Filing Date:
December 27, 2004
Export Citation:
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Assignee:
HONDA KIKO CO LTD
International Classes:
F04D5/00; F04D23/00; F04D29/42
Attorney, Agent or Firm:
平田 義則