Shroud and rotary vane wheel of propeller fan and propeller fan

Details Shroud and rotary vane wheel of propeller fan and propeller fan Shroud and rotary vane wheel of propeller fan and propeller fan

2006-02-28

2010-10-19

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing with axial flow runner

C416S228000, C416S24400R, C416S23600R, C416S23600R, C416S238000, C416SDIG004

Reexamination Certificate

active

07815418

ABSTRACT:
A shroud includes a body portion5B, a mount7positioned at a center of the body portion5B and supporting rotary vane wheel driver6, and multiple support beams10radially extending from the mount7and joining the mount7and the body portion5B, where each of the support beams10becomes thicker from an upstream side of a flow direction of air toward a downstream side thereof, and an edge portion10ti of each of the support beams10on the downstream side of the flow direction of the air discharged by the rotary vane wheel8is oriented in a direction parallel to a rotation axis of the rotary vane wheel8, and the edge portion on the upstream side is oriented in a direction opposite to a rotation direction of the rotary vane wheel8.

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