Patents by Inventor Dennis A. Laper

Dennis A. Laper 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).

  • High efficiency low hydrocarbon emmisson hybrid power plant using operational aspects of both internal combustion and jet engines
    Patent number: 6920761
    Abstract: The method and apparatus of the present invention discloses a power plant operating at low inlet pressure and temperature using a combination of conventional internal combustion engine techniques and jet engine techniques. The combination of a unique combustion chamber design, a novel variable impedance blade set turbine and a closed loop control system allows a variable resonant frequency for combusted gases. As the resonant frequency is approached a control mechanism uses sensor data to maintain the operating point such that maximum power output is achieved for a given throttle setting. The combination of the unique combustion chamber design, multiple fuel injector/sparking device pairs, finely atomized fuel, excess oxygen and the closed loop control system further provides a very linear power curve with low exit hydrocarbon pollution levels and high fuel efficiency.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: July 26, 2005
    Inventor: Dennis A. Laper
  • High efficiency low hydrocarbon emmisson hybrid power plant using operational aspects of both internal combustion and jet engines
    Publication number: 20040128974
    Abstract: The method and apparatus of the present invention discloses a power plant operating at low inlet pressure and temperature using a combination of conventional internal combustion engine techniques and jet engine techniques. The combination of a unique combustion chamber design, a novel variable impedance blade set turbine and a closed loop control system allows a variable resonant frequency for combusted gases. As the resonant frequency is approached a control mechanism uses sensor data to maintain the operating point such that maximum power output is achieved for a given throttle setting. The combination of the unique combustion chamber design, multiple fuel injector/sparking device pairs, finely atomized fuel, excess oxygen and the closed loop control system further provides a very linear power curve with low exit hydrocarbon pollution levels and high fuel efficiency.
    Type: Application
    Filed: September 3, 2003
    Publication date: July 8, 2004
    Inventor: Dennis A. Laper