Patents Assigned to Research Cottrell Technologies, Inc.
  • Apparatus and method for flue gas recirculation in a solid fuel boiler
    Patent number: 4335660
    Abstract: A solid fuel boiler or furnace with a flue gas-air mixture introduced into the fuel grate is disclosed. The flue gas is mixed with air such that approximately 30% of the mixture is flue gas. By providing this mixture under the burning fuel bed, the temperature of the fuel bed is lowered and excess oxygen is reduced. A more reactive fuel bed results providing various advantages including improved boiler operation and a clinker-free fuel bed.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: June 22, 1982
    Assignee: Research Cottrell Technologies, Inc.
    Inventors: Kenneth L. Maloney, Nick B. de Volo