Patents by Inventor Timothy J. Krattenmaker

Timothy J. Krattenmaker 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).

  • Genset that uses an open loop electronic fuel injection system and operates on gaseous fuels
    Patent number: 8413642
    Abstract: A genset engine that operates on an open loop EFI system and runs on gaseous fuels is described. The integration of various air sensors, including for example a manifold air temperature (MAT) sensor, a manifold absolute pressure (MAP) sensor, or an air flow sensor(s), can provide optimal engine performance when using gaseous fuels and when starting from a cold state. The sensors employed send data to the electronic control unit (ECU) and such data is used to determine the optimal air-to-fuel ratio (AFR). The ECU actuates the injector and the injector sends the requested amount of gaseous fuel to mix with the air flow to be combusted. This provides the engine with a gaseous fuel and air mixture that is at the requested relative AFR and the engine is able to start and meet performance.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: April 9, 2013
    Assignee: Cummins Power Generation, Inc.
    Inventors: Aaron C. Johnson, Keith M. Schorr, Timothy J. Krattenmaker
  • GENSET THAT USES AN OPEN LOOP ELECTRONIC FUEL INJECTION SYSTEM AND OPERATES ON GASEOUS FUELS
    Publication number: 20110180042
    Abstract: A genset engine that operates on an open loop EFI system and runs on gaseous fuels is described. The integration of various air sensors, including for example a manifold air temperature (MAT) sensor, a manifold absolute pressure (MAP) sensor, or an air flow sensor(s), can provide optimal engine performance when using gaseous fuels and when starting from a cold state. The sensors employed send data to the electronic control unit (ECU) and such data is used to determine the optimal air-to-fuel ratio (AFR). The ECU actuates the injector and the injector sends the requested amount of gaseous fuel to mix with the air flow to be combusted. This provides the engine with a gaseous fuel and air mixture that is at the requested relative AFR and the engine is able to start and meet performance.
    Type: Application
    Filed: January 28, 2010
    Publication date: July 28, 2011
    Applicant: CUMMINS POWER GENERATION, INC.
    Inventors: Aaron C. Johnson, Keith M. Schorr, Timothy J. Krattenmaker