Including Plural Impellers Patents (Class 165/DIG307)

Digests

Coaxial impellers (Class 165/DIG308)
  • Tandem fan for motor-vehicle radiators
    Patent number: 5826549
    Abstract: A tandem fan for a motor-vehicle radiator has one fan impeller driven via a fluid friction clutch by the engine shaft. Both fan impellers have belt pulleys with a common driving belt. Overrunning clutches for the two fan impellers ensure the impellers are driven by the drive shaft which is running faster.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: October 27, 1998
    Assignee: Behr GmbH & Co.
    Inventor: Hans Martin