Patents by Inventor Anand Manthena

Anand Manthena 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).

  • Service bay high pressure common rail injector performance test
    Patent number: 8554454
    Abstract: A method for testing a fuel injector including providing an engine with a common rail fuel injection system having one or more fuel injectors; operating the engine at a selected set of operating conditions; conducting a motoring event; allowing a first settling duration; measuring a first rail pressure; operating a first selected injector including operating the first selected injector singly in response to a selected fuel quantity, a selected number of combustion cycles, and a selected number of injections per combustion cycle; allowing a second settling duration; measuring a second rail pressure; calculating a pressure difference value in response to the first rail pressure and the second rail pressure; inferring an amount of fuel delivered by the first selected injector in response to the pressure difference value; and evaluating a first performance factor of the first selected injector in response to the amount of fuel delivered.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: October 8, 2013
    Assignee: Cummins Inc.
    Inventors: Rodney J. Hemmerlein, Michael R. Tidwell, Anand Manthena
  • SERVICE BAY HIGH PRESSURE COMMON RAIL INJECTOR PERFORMANCE TEST
    Publication number: 20110313639
    Abstract: A method for testing a fuel injector including providing an engine with a common rail fuel injection system having one or more fuel injectors; operating the engine at a selected set of operating conditions; conducting a motoring event; allowing a first settling duration; measuring a first rail pressure; operating a first selected injector including operating the first selected injector singly in response to a selected fuel quantity, a selected number of combustion cycles, and a selected number of injections per combustion cycle; allowing a second settling duration; measuring a second rail pressure; calculating a pressure difference value in response to the first rail pressure and the second rail pressure; inferring an amount of fuel delivered by the first selected injector in response to the pressure difference value; and evaluating a first performance factor of the first selected injector in response to the amount of fuel delivered.
    Type: Application
    Filed: May 20, 2011
    Publication date: December 22, 2011
    Inventors: Rodney J. Hemmerlein, Michael R. Tidwell, Anand Manthena