Patents by Inventor Durvesh Ramesh Pathak

Durvesh Ramesh Pathak 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).

  • Systems and methods for virtually determining fuel sulfur concentration
    Patent number: 11643957
    Abstract: A control module for an aftertreatment system that includes a selective catalytic reduction (SCR) catalyst and an oxidation catalyst, comprises a controller configured to be operatively coupled to the aftertreatment system. The controller is configured to determine an actual SCR catalytic conversion efficiency of the SCR catalyst. The controller determines an estimated SCR catalytic conversion efficiency based on a test sulfur concentration selected by the controller. In response to the estimated SCR catalytic conversion efficiency being within a predefined range, the controller sets the test sulfur concentration as a determined sulfur concentration in a fuel provided to the engine. The controller generates a sulfur concentration signal indicating the determined sulfur.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 9, 2023
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Jinqian Gong, Durvesh Ramesh Pathak, Changsheng C. Su, Gautam Sharma, Yuanzhou Xi
  • SYSTEMS AND METHODS FOR VIRTUALLY DETERMINING FUEL SULFUR CONCENTRATION
    Publication number: 20220412239
    Abstract: A control module for an aftertreatment system that includes a selective catalytic reduction (SCR) catalyst and an oxidation catalyst, comprises a controller configured to be operatively coupled to the aftertreatment system. The controller is configured to determine an actual SCR catalytic conversion efficiency of the SCR catalyst. The controller determines an estimated SCR catalytic conversion efficiency based on a test sulfur concentration selected by the controller. In response to the estimated SCR catalytic conversion efficiency being within a predefined range, the controller sets the test sulfur concentration as a determined sulfur concentration in a fuel provided to the engine. The controller generates a sulfur concentration signal indicating the determined sulfur.
    Type: Application
    Filed: November 22, 2019
    Publication date: December 29, 2022
    Applicant: CUMMINS EMISSION SOLUTIONS INC.
    Inventors: Jinqian Gong, Durvesh Ramesh Pathak, Changsheng C. Su, Gautam Sharma, Yuanzhou Xi