Patents Assigned to GASTECH ENGINEERING LLC
  • Patent number: 11835228
    Abstract: A cylindrical burner apparatus and method which produce low NOx emissions and low noise levels without being dependent upon a blower, or natural draft, for providing air flow or flue gas recirculation. A flow of combustion air is induced into the initial tube pass of the burner by discharging a gas fuel from a plurality of discharge ports located in the initial tube pass. At the same time, a flow of recycled flue gas is induced through a bypass duct between a subsequent tube pass of the burner and the initial tube pass by discharging one or more jets of gas fuel through the bypass duct.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: December 5, 2023
    Assignee: GASTECH ENGINEERING LLC
    Inventor: Yul E. Shaffer