Patents by Inventor James Frederick DEN OUTER

James Frederick DEN OUTER 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).

  • Model based bump-less transfer between passive and active mode operation of three-way check valve for liquid fuel delivery in gas turbine systems
    Patent number: 10443510
    Abstract: A method using an inverse three-way valve model with feed-forward fuel flow control is provided for controlling liquid fuel flow in a turbine power generation system to achieve a bump-less driven watts (dwatt) power output during fuel mode transitions between passive mode and active mode operations of a three-way check valve that delivers liquid fuel to the turbine combustor nozzles. The method utilizes an inverse fluid flow model for a three-way check valve which is based upon a valve position surrogate for the three-way check valve to develop a calculated estimate of a fuel spike/dwatt oscillation likely to occur during mode transitions of the three-way check valve and to produce a feed-forward control used to modulate a fuel path bypass valve within the turbine fuel supply circulation system that provides the liquid fuel to the three-way valve during transfers of valve operation between passive and active mode operations.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: October 15, 2019
    Assignee: General Electric Company
    Inventors: Omprakash Pobbati, Sunil Unnikrishnan, Pradeep Kumar Vavilala, James Frederick Den Outer
  • MODEL BASED BUMP-LESS TRANSFER BETWEEN PASSIVE AND ACTIVE MODE OPERATION OF THREE-WAY CHECK VALVE FOR LIQUID FUEL DELIVERY IN GAS TURBINE SYSTEMS
    Publication number: 20180016991
    Abstract: A method using an inverse three-way valve model with feed-forward fuel flow control is provided for controlling liquid fuel flow in a turbine power generation system to achieve a bump-less driven watts (dwatt) power output during fuel mode transitions between passive mode and active mode operations of a three-way check valve that delivers liquid fuel to the turbine combustor nozzles. The method utilizes an inverse fluid flow model for a three-way check valve which is based upon a valve position surrogate for the three-way check valve to develop a calculated estimate of a fuel spike/dwatt oscillation likely to occur during mode transitions of the three-way check valve and to produce a feed-forward control used to modulate a fuel path bypass valve within the turbine fuel supply circulation system that provides the liquid fuel to the three-way valve during transfers of valve operation between passive and active mode operations.
    Type: Application
    Filed: July 14, 2016
    Publication date: January 18, 2018
    Inventors: Omprakash POBBATI, Sunil UNNIKRISHNAN, Pradeep Kumar VAVILALA, James Frederick DEN OUTER