Patents by Inventor Mark R. Firth

Mark R. Firth 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).

  • Turbocharged internal combustion engine
    Patent number: 7912620
    Abstract: A control system for controlling the supply of oil to a turbocharger fitted to an internal combustion comprises an oil supply valve (21) controlled by a controller (20) and at least one sensor (23-28) for monitoring a parameter associated with the existence or potential occurrence of a leak in the turbocharger oil supply, or of a condition potentially resulting in such a leak. The controller (20) is operable to determine the existence or possible occurrence of an oil leak in the turbocharger oil supply in response to a signal received from the sensor (23-28) and to close the oil supply control valve (21) in the event of said determination to cut off the oil supply to the turbocharger.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: March 22, 2011
    Assignee: Cummins Turbo Technologies Limited
    Inventors: Pierre Bernard French, Mark R. Firth, Dean H. Reichenbach
  • TURBOCHARGED INTERNAL COMBUSTION ENGINE
    Publication number: 20100114454
    Abstract: A control system for controlling the supply of oil to a turbocharger fitted to an internal combustion comprises an oil supply valve (21) controlled by a controller (20) and at least one sensor (23-28) for monitoring a parameter associated with the existence or potential occurrence of a leak in the turbocharger oil supply, or of a condition potentially resulting in such a leak. The controller (20) is operable to determine the existence or possible occurrence of an oil leak in the turbocharger oil supply in response to a signal received from the sensor (23-28) and to close the oil supply control valve (21) in the event of said determination to cut off the oil supply to the turbocharger.
    Type: Application
    Filed: October 5, 2009
    Publication date: May 6, 2010
    Inventors: Pierre Bernard French, Mark R. Firth, Dean H. Reichenbach