Patents by Inventor John T. Kubesh

John T. Kubesh 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).

  • Method of operating uni-flow two-cycle engine during reduced load conditions
    Patent number: 6062178
    Abstract: A method of operating a two-cycle internal combustion engine under low load conditions. A throttle is placed at the intake air system to reduce air intake into the engine cylinders. A pump is placed in the exhaust system, such that it creates reduced pressure downstream of the exhaust valves. In this manner, when the air intake ports close, the exhaust is evacuated and the air trapped in the cylinder is reduced. This permits fuel to be reduced so that the engine may operate in a low load state without losing combustion.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: May 16, 2000
    Assignee: Southwest Research Institute
    Inventors: David P. Meyers, John C. Hedrick, Gary D. Bourn, John T. Kubesh, Kevin D. Beaty, Robert W. Burrahm
  • Stoichiometric synthesis, exhaust, and natural-gas combustion engine
    Patent number: 5947063
    Abstract: A method of stoichiometrically operating an internal combustion engine. The engine is equipped with a pre-engine catalyst, which produces syngas from natural gas and air. The engine receives the syngas, as well as natural gas, and recirculated exhaust gas. The amount of syngas and the amount of recirculated exhaust gas are maximized for a desired engine efficiency and NO.sub.x emissions level.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: September 7, 1999
    Assignee: Southwest Research Institute
    Inventors: Jack A. Smith, Daniel J. Podnar, James J. Cole, John T. Kubesh, Gordon J. Bartley