Nidec Servo Corporation

Takanori Abe

Yoshihiko Kato

Yoshihisa Kagawa

Takahiro Bamba

A counter-rotating axial flow fan includes a first fan including a first impeller including first blades radially arranged around a predetermined central axis, a first motor rotating the first impeller around the central axis, and a first case surrounding an outer periphery of the first impeller, and a second fan including a second impeller including second blades radially arranged around the central axis, a second motor rotating the second impeller around the central axis, and a second case surrounding an outer periphery of the second impeller. End surfaces of the first and second cases contact each other at a first position in an axial direction, the first and second motors face in opposite directions from each other in the axial direction, and end surfaces of the first and second motors are opposite to each other at a second position that differs from the first position.

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Kiryu, Japan

Takanori Abe