Patents by Inventor Stephen L. Nabours

Stephen L. Nabours 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).

  • Internal Combustion Engine and Components Therefor
    Publication number: 20110247583
    Abstract: A rotary internal combustion engine includes crank-driven gates to synchronously form chambers for the intake, compression, combustion, expansion and exhaust of a working medium during a high-efficiency hybrid engine cycle. A variety of rotor geometries and sealing apparatuses may work with a rotary engines in the execution of various engine cycles including, but not limited to, a high-efficiency hybrid engine cycle.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Applicant: LIQUIDPISTON, INC.
    Inventors: Nikolay Shkolnik, Alexander C. Shkolnik, Stephen L. Nabours, Gnana Prakash Gnanam, David Collis Kieke, Yehoram Hofman
  • Isochoric Heat Addition Engines and Methods
    Publication number: 20110023814
    Abstract: Engines and methods execute a high efficiency hybrid cycle, which is implemented in a volume within an engine. The cycle includes isochoric heat addition and over-expansion of the volume within the engine, wherein the volume is reduced in a compression portion of the cycle from a first quantity to a second quantity, the volume is held substantially constant at the second quantity during a heat addition portion of the cycle, and the volume is increased in an expansion portion of the cycle to a third quantity, the third quantity being larger than the first quantity.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 3, 2011
    Applicant: LiquidPiston, Inc.
    Inventors: Nikolay Shkolnik, Alexander C. Shkolnik, Stephen L. Nabours, Ryan D. Nelms