EBM风扇选择方法.pdf - 热设计论坛

Understanding the Differences in Fans, Impellers and Blowers

Select either AC or Brushless DC models:
Tubeaxial Fans
  Readily available and inexpensive
  Many sizes and performances
  Good to excellent efficiency
  Axial air flow pattern
Axial & Propeller Fans
  Very high air flows
  Good efficiency
  Many sizes and performances
  Axial air flow pattern
Backward Curved Impellers
  Compact package size
  Excellent efficiency
  Quietest performance
  Many airflow options
  Even, tangential air flow

Centrifugal Blowers
  Excellent pressure performance
  Very good efficiencies
  Air in axially D out tangentially
  Single or Dual inlet options
Crossflow Blowers
  Fair to good efficiency
  Narrow, controlled air
flow direction
  Good for air curtains and paper/
converting transfer
Fan Trays & Flo-Thru Modules
  Compact, custom-fit package sizes
  Built-in redundancy, if needed
  Simple, space-saving designs
  Efficient, cost-effective solutions