Patents by Inventor SANJAY K. RAJANI

SANJAY K. RAJANI 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).

  • After-treatment de-contamination system
    Patent number: 8534045
    Abstract: In one aspect an internal combustion engine assembly may be provided that may include at least one combustion chamber and an exhaust system with an after-treatment system that may have an oxidation catalyst and a particulate filter. The internal combustion engine assembly may include an electronic controller that may have a de-contamination function that may, responsive to a command be configured to de-contaminate the particulate filter and the oxidation catalyst. To that end, a method may be provided to, and the controller may be configured to increase the exhaust gas temperature at an inlet of the after-treatment system to above a de-contamination temperature during a certain time period.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: September 17, 2013
    Assignee: Perkins Engines Company Limited
    Inventors: Stephen W. Bird, Paul J. Quinney, Sanjay K. Rajani, James J. Reed, Anil Raina
  • After-Treatment De-Contamination System
    Publication number: 20100005784
    Abstract: In one aspect an internal combustion engine assembly may be provided that may include at least one combustion chamber and an exhaust system with an after-treatment system that may have an oxidation catalyst and a particulate filter. The internal combustion engine assembly may include an electronic controller that may have a de-contamination function that may, responsive to a command be configured to de-contaminate the particulate filter and the oxidation catalyst. To that end, a method may be provided to, and the controller may be configured to increase the exhaust gas temperature at an inlet of the after-treatment system to above a de-contamination temperature during a certain time period.
    Type: Application
    Filed: July 13, 2009
    Publication date: January 14, 2010
    Applicant: CATERPILLAR INC.
    Inventors: STEPHEN W. BIRD, PAUL J. QUINNEY, SANJAY K. RAJANI, JAMES J. REED, ANIL RAINA