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Cooling air flap and blower control for motor vehicles

  • US 4,779,577 A
  • Filed: 12/02/1986
  • Issued: 10/25/1988
  • Est. Priority Date: 07/26/1986
  • Status: Expired due to Fees
First Claim
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1. A cooling air control system for motor vehicles of the type having cooling air duct means opening to an engine copartment, comprising:

  • controllable cooling airflap means for controlling the size of the flow opening in the cooling air duct means;

    controllable speed fan means for controlling the flow of air supplied by the cooling air duct means;

    electric motor driven airflap control means for controlling the airflap means in response to detected cooling air requirements to selectively move the same;

    to a closed position, a partially open position or a fully open position; and

    rotational speed control means for controlling the rotational speed of the fan means in response to detected cooling air requirements starting in the partially open position of said airflap means.

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