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:
Mar. 03, 2015

Filed:

Jan. 26, 2010
Applicants:

Abastari, Oura-gun, JP;

Takayuki Masukawa, Ota, JP;

Takahiro Nakamura, Kumagaya, JP;

Inventors:

Abastari, Oura-gun, JP;

Takayuki Masukawa, Ota, JP;

Takahiro Nakamura, Kumagaya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/22 (2006.01); F04D 29/28 (2006.01);
U.S. Cl.
CPC ...
F04D 29/28 (2013.01); F04D 29/281 (2013.01);
Abstract

There is provided a centrifugal air blower that can reduce driving force (consumed driving force) when an air blower is rotated, and also increase an airflow amount of air to be blown out from the air blower. A centrifugal air blower having an impellercomprising a main plateand plural vanes, and a side plate having a suction port and a blow-out port is characterized in that when the height of the suction port is represented by H, the height of the blow-out port is represented by h, the diameter of the impeller is represented by D and the diameter of the suction port is represented by d, 0.5<h/H<0.8 and 0.78<d/D<0.84 are satisfied.


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