Patents by Inventor Rahul Dev Rajampeta

Rahul Dev Rajampeta 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).

  • Publication number: 20200240424
    Abstract: A vehicle having an engine system which can detect an expected compressor surge event while the compressor is operating in a stable region of a compressor map, and upon detecting the expected compressor surge event controlling one or more engine operating parameters to maintain compressor operation in the stable region of the compressor map without transgressing (or mitigating the transgression of) a compressor surge line on the compressor map which, if transgressed, may cause compressor surge to occur.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Inventors: Vishnu Vijayakumar, Rahul Dev Rajampeta, Dave William Slessor, Sabrina Niemann, Mike Padowski
  • Patent number: 9121363
    Abstract: A method is provided for operating an engine to limit soot emissions during fuel-enriched operation. The method includes operating the engine using a first fuel injection pattern and timing to inject fuel into a combustion chamber of the engine. The method further includes receiving a request for an increased engine power output and operating the engine using a second fuel injection pattern and timing to inject more fuel into the combustion in response to the request for the increased power output, where the second fuel injection pattern and timing is configured to minimize soot emissions during enriched fuel operations, such as during transient operations.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: September 1, 2015
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Luis Carlos Cattani, Michael Uchanski, Rogelio Rodiguez, Jer Shen Jason Chen, Dileep Khadilkar, Rahul Dev Rajampeta, Jeremy Grant Schipper, Eric Kastanis
  • Publication number: 20140083392
    Abstract: The present technology provides one or more methods of operating an engine in a motor vehicle. In at least one embodiment, the existence of an engine idle condition is determined. The method may also include determining whether an operator is present in the vehicle. In some embodiments, the engine operates at a performance idle speed when an engine idle condition exists and an operator is present in the vehicle. In further embodiments, the engine operates at a fuel economy idle speed when an idle condition exists and no operator is present in the vehicle. In still further embodiments, the fuel economy idle speed will be lower than the performance idle speed. The present technology anticipates engine workload and controls engine idle speeds. Based on the anticipated workloads, the present technology can reduce engine stalling while also reducing emissions and increasing fuel economy.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Luis Carlos Cattani, Michael Uchanski, Rogelio Rodiguez, James Ciglar, Jer Shen Jason Chen, Dileep Khadilkar, Rahul Dev Rajampeta, Ravi Rayala