Patents by Inventor Darrell G. Bobzin

Darrell G. Bobzin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Simplex airblast fuel injection
    Patent number: 5224333
    Abstract: A simplex air blast fuel injection system for the atomization of fuel for ignition to drive a gas turbine includes a simplex nozzle which receives fuel from a fuel pump powered by the turbine over a range of pressures between maximum and minimum pressures during the operation of the turbine, and also receives fuel at a substantially lower pressure than the minimum fuel pressure when the turbine is cranked during startup. The fuel is discharged from the nozzle orifice as a swirling stream of atomized fuel during turbine operation, and as a film which is insufficiently atomized to initiate ignition during the turbine startup. An air compressor is also powered by the turbine to supply air at a low pressure to the fuel issuing from the nozzle orifice during both turbine operation and startup.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: July 6, 1993
    Assignee: Delavan Inc
    Inventors: David H. Bretz, Darrell G. Bobzin
  • Simplex airblade fuel injection method
    Patent number: 5115634
    Abstract: A simplex air blast fuel injection system and method for the atomization of fuel for ignition to drive a gas turbine includes a simplex nozzle which receives a fuel from a fuel pump powered by the turbine over a range of pressures between maximum and minimum pressures during the operation of the turbine, and also received fuel from the fuel pump at a substantially lower pressure than the minimum fuel pressure when the turbine is cranked during startup. The fuel is discharged from the nozzle orifice as a swirling stream of atomized fuel during turbine operation, and as a film which is insufficiently atomized to initiate ignition during the turbine startup. An air compressor is also powered by the turbine to supply air at a low pressure and high volume to the fuel issuing from the nozzle orifice during both turbine operation and startup.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: May 26, 1992
    Assignee: Delavan Inc.
    Inventors: David H. Bretz, Darrell G. Bobzin