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:
Oct. 19, 2021
Filed:
Jan. 08, 2020
Shinano Kenshi Kabushiki Kaisha, Nagano, JP;
Shin-ichiro Godo, Nagano, JP;
SHINANO KENSHI KABUSHIKI KAISHA, Nagano, JP;
Abstract
There is provided a blower capable of suppressing fluctuation of a flow path and suppressing occurrence of surging in a use rotation range of the blower by changing a shape without increasing the number of parts. A flow path is formed by a first housing-side shroudconnecting to an intake portand an impeller-side shroudconnecting outer peripheral sides of bladesbeing adjacent to each other in a radial direction in a blowing passageconnecting the intake portand a discharge port, and a narrow partwhere a cross-sectional area of the flow path becomes the minimum is provided on an outer side of outer peripheral end portions of the bladesin the radial direction.