Blower
AssigneeDenso Corporation
InventorsToshikatsu Kondou, Masashi Matsukawa, Youhei Kamiya, Masaru Kamiya, Takeshi Miyamoto, Isao Kondoh, Takashi Ito, Kazuhiro Takeuchi
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AssigneeDenso Corporation
InventorsToshikatsu Kondou, Masashi Matsukawa, Youhei Kamiya, Masaru Kamiya, Takeshi Miyamoto, Isao Kondoh, Takashi Ito, Kazuhiro Takeuchi
Estimating the term…
A blower fan includes a plurality of blades radially extending from a boss provided at the rotary center and spaced apart from each other in the rotational direction, and a ring portion connecting outer peripheral ends of the blades in a ring shape. An inner peripheral wall surface of an end part on an air-flow downstream side of a cylindrical portion is disposed on the outside in a radial direction of the rotary shaft in the blower fan, with respect to an end part on the air-flow downstream side of the ring portion. The end part on the air-flow downstream side of the cylindrical portion is positioned outward in the radial direction of the rotary shaft, as toward the air-flow downstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.
A blower comprising:
Dependencies are inferred from the claim text.