Patents by Inventor David C. Gregory

David C. Gregory 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).

  • Thrust chamber and rocket engine system
    Patent number: 9151246
    Abstract: An engine system includes a thrust chamber that has a cooling channel. The cooling channel is adapted to provide sustained cracking conditions for a fluid at steady-state operating conditions. A turbine has an input in fluid communication with an output of the cooling channel. A pump is mechanically coupled with the turbine and is in fluid communication with the cooling channel.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: October 6, 2015
    Assignee: AEROJET ROCKETDYNE OF DE, INC.
    Inventor: David C. Gregory
  • AUGMENTED EXPANDER CYCLE
    Publication number: 20120204535
    Abstract: A rocket engine includes a thrust chamber having a cooling channel, which is adapted to provide sustained cracking conditions for a fluid (e.g., kerosene) within the cooling channel under steady-state engine operating conditions. An augmenter having a fluid input communicates with an output of the cooling channel, and an output of the augmenter is in fluid communication with a turbine. A pump is mechanically coupled to the turbine, and provides fluid flow to the inlet of the cooling channel.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 16, 2012
    Applicant: PRATT & WHITNEY ROCKETDYNE, INC.
    Inventors: Alan B. Minick, David C. Gregory
  • THRUST CHAMBER AND ROCKET ENGINE SYSTEM
    Publication number: 20120198813
    Abstract: An engine system includes a thrust chamber that has a cooling channel. The cooling channel is adapted to provide sustained cracking conditions for a fluid at steady-state operating conditions. A turbine has an input in fluid communication with an output of the cooling channel. A pump is mechanically coupled with the turbine and is in fluid communication with the cooling channel.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Inventor: David C. Gregory