Patents by Inventor Aradhita Subirkumar Chakrabarty

Aradhita Subirkumar Chakrabarty 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).

  • Gas or dual fuel engine
    Patent number: 9605602
    Abstract: A method of operating a gas or dual fuel engine having a plurality of cylinders, includes monitoring a characteristic of each of the plurality of cylinders during operation of the gas or dual fuel engine. The method also includes detecting a pre-ignition condition associated with one or more cylinders of the plurality of cylinders based on the monitored characteristic. The method further includes reducing fuel supply to the one or more cylinders having the pre-ignition condition. The fuel supply to remaining cylinders of the plurality of cylinders is increased, to maintain a constant power output of the gas or dual fuel engine. The method further includes adjusting an amount of air supplied to each of the plurality of cylinders based on the increased amount of fuel supplied to the remaining cylinders, to maintain an air-to-fuel ratio within a desired range.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: March 28, 2017
    Assignee: Caterpillar Motoren GmbH & Co. KG
    Inventors: Eike Sixel, Adam Stubbs, Aradhita Subirkumar Chakrabarty, Daniel Wester, Rodney Stazicker, Michael Andrew Snopko, Arvind Sivasubramanian
  • GAS OR DUAL FUEL ENGINE
    Publication number: 20150252738
    Abstract: A method of operating a gas or dual fuel engine having a plurality of cylinders, includes monitoring a characteristic of each of the plurality of cylinders during operation of the gas or dual fuel engine. The method also includes detecting a pre-ignition condition associated with one or more cylinders of the plurality of cylinders based on the monitored characteristic. The method further includes reducing fuel supply to the one or more cylinders having the pre-ignition condition. The fuel supply to remaining cylinders of the plurality of cylinders is increased, to maintain a constant power output of the gas or dual fuel engine. The method further includes adjusting an amount of air supplied to each of the plurality of cylinders based on the increased amount of fuel supplied to the remaining cylinders, to maintain an air-to-fuel ratio within a desired range.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 10, 2015
    Applicant: Caterpillar Motoren GmbH & Co. KG
    Inventors: Eike SIXEL, Adam Stubbs, Aradhita Subirkumar Chakrabarty, Daniel Wester, Rodney Stazicker, Michael Andrew Snopko, Arvind Sivasubramanian