LOW POWER AND LOW NOISE FAN-SCROLL WITH MULTIPLE SPLIT INCOMING AIR-STREAMS

摘要

The disclosure relates to a blower assembly having a blower housing, an impeller adapted for rotation about an axis A-A disposed in blower housing, and an intake plenum cooperating with the interior first surface of the blower housing to define an air entrance passage for receiving an incoming air flow. The intake plenum includes means to split the incoming air flow into a plurality of air streams and direct the air streams to predetermined portions of the impeller susceptible to stall conditions as the impeller rotates about the axis A-A. The means to split the incoming air may include a splitter plate disposed in the air entrance passage or at least one port defined in a portion of the air intake plenum adjacent the impeller.

主权项

1. A blower assembly comprising:
a blower housing having an interior first surface; an impeller adapted for rotation about an axis A-A disposed in blower housing; and an intake plenum cooperating with said interior first surface of said blower housing to define an air entrance passage for receiving an incoming air flow; wherein said intake plenum includes means to split the incoming air flow into a plurality of air streams and direct the air streams to predetermined portions of the impeller as the impeller rotates about the axis A-A.