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Multi-stage burner unit

  • US 3,283,802 A
  • Filed: 06/11/1964
  • Issued: 11/08/1966
  • Est. Priority Date: 06/11/1964
  • Status: Expired due to Term
First Claim
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1. A MULTI-STAGE BURNER UNIT COMPRISING A HOUSING MEANS SLIDINGLY RETRACTABLE FROM A FURNACE WALL AND POSITIONED IN ITS RETRACTED POSITION TO CUT OFF SUPPLYOF AIR TO THE UNIT, PLURALITY OF INDIVIDUAL BURNER STAGES ARRANGED IN A CLUSTER IN SAID HOUSING, EACH SAID STAGE INCLUDING AN AIR DUCT FOR COMBUSTION AIR, A PRESSURE SOURCE OF COMBUSTION AIR COMMON TO ALL SAID STAGES AND CONNECTED TO EACH SAID AIR DUCT, A BURNER WITHIN AND SURROUNDED BY EACH AIR DUCT, A SPRAYER FOR FUEL ASSOCIATED WITH EACH SAID BURNER, A SOURCE OF FUEL COMMON TO ALL SAID STAGES AND CONNECTED TO EACH SAID SPRAYER, AND MEANS IN EACH SAID DUCT AND ABOUT EACH SAID BURNER FOR EFFECTING TURBULENCE OF COMBUSTION AIR IN SUCH WISE THAT AIR FROM ONE DUCT IS ROTATED IN A DIRECTION OPPOSITE TO THAT IMPARTED TO AIR FROM AN ADJACENT DUCT.

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