Posz Law Group, PLC
Propeller fan, air-sending device, and refrigeration cycle apparatus
A propeller fan according to an embodiment of the present invention includes a shaft provided a rotation axis of the propeller fan, and a blade provided on an outer peripheral side of the shaft. The blade has a trailing edge on a rear side of the blade in a rotation direction of the propeller fan. The trailing edge includes a first trailing edge located on an innermost side of the trailing edge, and a second trailing edge adjacent to and outward of the first trailing edge. Where an innermost point of the first trailing edge is a first connection point, a connection point between the first trailing edge and the second trailing edge is a second connection point, and a straight line that extends through the rotation axis and the first connection point is a reference line, the second connection point is located forward of the reference line in the rotation direction, or located on the reference line, and the second trailing edge is located rearward of the second connection point in the rotation direction.
Mitsubishi Electric Corporation
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Takafumi Yuki Takashi Hiroya Takahide Katsuyuki Shingo Takuya
Abe Ugajin Ikeda Ito Tadokoro Yamamoto Hamada Teramoto