The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 13, 2014

Filed:

Jan. 13, 2009
Applicant:

Kazuta Kobayashi, Hyogo-ken, JP;

Inventor:

Kazuta Kobayashi, Hyogo-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/24 (2006.01); F04D 29/30 (2006.01); F04D 29/46 (2006.01); F04D 29/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a method of setting a performance characteristic of a pump for setting a performance characteristic of a pump, the pump including an impeller that takes in fluid from a suction port and that sends out the fluid toward a discharge port, and a diffuser provided in a flow passage between the impeller and the discharge port, where the diffuser includes a hub arranged in a central portion of the flow passage, a shroud arranged around a periphery of the hub, and a plurality of diffuser vanes radially arranged from an outer peripheral surface of the hub toward an inner peripheral surface of the shroud, and the method includes a mounting-position setting step of setting a mounting position of each of the diffuser vanes to be mounted on the hub according to the performance characteristic of the pump in a direction perpendicular to a radial direction extending from the hub toward the shroud.


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