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Air blending apparatus for heating, ventilating and air conditioning (HVAC)

  • US 4,605,160 A
  • Filed: 06/08/1984
  • Issued: 08/12/1986
  • Est. Priority Date: 06/08/1984
  • Status: Expired due to Term
First Claim
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1. Air-blending apparatus comprising a chamber having a first inlet for outside air and a second inlet for return air and an outlet, a partition dividing a portion of said chamber adjacent to said inlet into first and second compartments, said partition extending from inlet ends of said compartments near said first and second inlets in the direction of said outlet to outlet ends of said compartments, first and second dampers pivotally mounted in said chamber on opposite sides of said partition, said dampers being rotatable into and out of closing engagement with said oulet ends of said compartments, said dampers defining a region of said chamber on opposite sides of said partition and between said outlet ends thereof and the outlet of said chamber of volume variable in accordance with the position of said dampers, means responsive to conditions representing stratification of the air in the vicinity of said outlet of said chamber, and means responsive to said last-named means for controlling the position of said dampers whereby to prevent stratification of the air in the vicinity of said outlet of said chamber.

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