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Blend door assembly for climate control systems

  • US 6,224,480 B1
  • Filed: 09/09/1999
  • Issued: 05/01/2001
  • Est. Priority Date: 09/09/1999
  • Status: Expired due to Term
First Claim
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1. An assembly for controlling the temperature of air flowing into the passenger compartment of a vehicle, said assembly comprising:

  • a frame defining an opening through which air flows into the passenger compartment of the vehicle, said frame having opposite arcuate tracks;

    an arcuate door which is movable to control airflow through said opening, said arcuate door having side edges slidably received in said opposite arcuate tracks, said arcuate door and said opposite arcuate tracks maintaining the same center of curvature during the sliding of said arcuate door in said opposite arcuate tracks; and

    an actuation assembly associated with said arcuate door for moving said arcuate door along said opposite arcuate tracks, said opposite arcuate tracks imparting only frictional shear force on said arcuate door during movement of said arcuate door along said opposite arcuate tracks.

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