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.
Patent No.:
Date of Patent:
Apr. 12, 2022
Filed:
Jan. 27, 2020
Applicant:
Shinano Kenshi Kabushiki Kaisha, Nagano, JP;
Inventor:
Akishige Umematsu, Nagano, JP;
Assignee:
SHINANO KENSHI KABUSHIKI KAISHA, Nagano, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/28 (2006.01); F04D 17/16 (2006.01); F04D 29/30 (2006.01); F04D 29/44 (2006.01); F04D 29/42 (2006.01); F04D 17/08 (2006.01);
U.S. Cl.
CPC ...
F04D 29/281 (2013.01); F04D 17/08 (2013.01); F04D 17/16 (2013.01); F04D 29/30 (2013.01); F04D 29/4206 (2013.01); F04D 29/4226 (2013.01); F04D 29/4233 (2013.01); F04D 29/441 (2013.01); F05B 2240/301 (2013.01);
Abstract
There is provided a blower realizing characteristics in which the pressure is reduced as the flow rate is increased in pressure-flow rate characteristics in a case where an impeller rotates at a fixed rotation speed, while having a simple structure. An impeller includes a main plate formed in a disc shape and a plurality of main blades formed to stand on the main plate, the impeller is extended to a position facing the inside of a discharge flow path formed so as to circle on an outer peripheral side, and auxiliary blades are formed to stand on an extended portion extended inside the discharge flow path.