×

Housing with recirculation control for use with banded axial-flow fans

  • US 5,489,186 A
  • Filed: 02/15/1995
  • Issued: 02/06/1996
  • Est. Priority Date: 08/30/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. A fan and housing combination comprising a fan having a hub that rotates on an axis and blades extending outwardly from the hub to a circular band that connects the blade tips, the combination also comprising a housing surrounding the fan to control airflow the combination being characterized in that:

  • a) a portion of the housing is positioned outward of the fan band and there are running clearances between the band and the housing such that recirculating airflow moves in a pathway between the fan and the housing; and

    b) stationary flow control vanes are connected to the housing in a position to encounter and redirect recirculating airflow.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×