Daikin Industries, Ltd.

Kouji Somahara

Tsunehisa Sanagi

Kazuyasu Matsui

Jiro Yamamoto

Kento Shibuya

Masahiro Shigemori

A fan includes a core part, a vanes, a ring part and a flow rectifying member. The ring part includes first second and third parts. The first part includes a first end overlapping with a flow rectifying member end and extends axially on a radially inner side of the flow rectifying member. The second part includes a second end spaced from the flow rectifying member end, overlapping with the flow rectifying member, and connected to the first end. The third part is connected to the second end, and extends on the radially outer side of the flow rectifying member end. The second end overlaps with a virtual point reached by the flow rectifying member end being linearly extended toward an upstream side. A first dimension, a radial length of the third part, is at least 0.5 times a first straight-line distance between the flow rectifying member end and the virtual point.

Fan and refrigeration apparatus including fan

A blower is provided with an axial flow impeller, a fan motorpositioned in a suction side of the axial flow impeller, and a motor staysupporting the fan motor. The motor stayis substantially formed to have a linear shape and attached in parallel to a rotating surface of the axial flow impeller. An impeller blade front edgeof the axial flow impelleris positioned in a region X which is closer to the motor staythan a region Y in which an air flow turbulence in a wake flow of the motor stayis expanded, and in which region X a range of the air flow turbulence is reduced. Accordingly, it is possible to inhibit the air flow turbulence in the wake flow of the motor stayfrom affecting the aerodynamic characteristics and noise characteristics (for example, an increase of an NZ noise) of the axial flow impeller

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Osaka, Japan

Kouji Somahara