Impeller of centrifugal fan and centrifugal fan disposed...

Details Impeller of centrifugal fan and centrifugal fan disposed... Impeller of centrifugal fan and centrifugal fan disposed...

2011-08-30

2011-08-30

Verdier, Christopher (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

C416S188000, C416S21300R, C416S233000, C029S889720, C029S889400

Reexamination Certificate

active

08007240

ABSTRACT:
An impeller of a centrifugal fan includes an end plate, a plurality of blades and an end ring. The blades include blade bodies that are annularly disposed around a shaft and fixed to the end plate. The blades further include blade covers that are attached to the blade bodies. The blade covers and the blade bodies form a hollow space. The end ring is disposed such that it sandwiches the plural blades between itself and the end plate in a shaft direction. The blade covers form at least part of negative-pressure surfaces.

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