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Series speed manipulation for dual fan module

  • US 20060022620A1
  • Filed: 05/25/2005
  • Published: 02/02/2006
  • Est. Priority Date: 07/27/2004
  • Status: Abandoned Application
First Claim
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1. A method of controlling speed of motors of a dual fan engine cooling module, the method including:

  • providing a dual fan engine-cooling module having first and second motors, each motor being constructed and arranged to drive a fan, ensuring that the motors can be selectively connected

         1) in series to provide a first speed of operation of each motor, with an output of the first motor being electrically connected with an input of the second motor by wire, and

         2) in parallel to provide a second speed of operation of each motor, the second speed of operation being greater than the first speed of operation, and manipulating a resistance of said wire to adjust a voltage that passes through each motor to control the first speed of each motor when the motors are connected in series.

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