Patents by Inventor Leo T. Steffl

Leo T. Steffl 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).

  • Patent number: 9874190
    Abstract: Methods and systems for exercising a genset are disclosed herein. The method includes detecting whether the genset is in a first mode or a second mode, and activating a plurality of exercise cycles of the genset. Activating the plurality of exercise cycles comprises, in response to detecting the genset is in the first mode, ignite fuel to activate the genset during each of the plurality of exercise cycles of the genset; and in response to detecting the genset is in the second mode, cranking the genset without igniting fuel during at least a first subset of the plurality of exercise cycles.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: January 23, 2018
    Assignee: Cummins Power Generation IP, Inc.
    Inventors: Dan G. Priem, Leo T. Steffl
  • Publication number: 20170211535
    Abstract: Methods and systems for exercising a genset are disclosed herein. The method includes detecting whether the genset is in a first mode or a second mode, and activating a plurality of exercise cycles of the genset. Activating the plurality of exercise cycles comprises, in response to detecting the genset is in the first mode, ignite fuel to activate the genset during each of the plurality of exercise cycles of the genset; and in response to detecting the genset is in the second mode, cranking the genset without igniting fuel during at least a first subset of the plurality of exercise cycles.
    Type: Application
    Filed: January 26, 2016
    Publication date: July 27, 2017
    Applicant: Cummins Power Generation IP, Inc.
    Inventors: Dan G. Priem, Leo T. Steffl
  • Patent number: 8550038
    Abstract: A system includes a genset having an engine, an AC generator, and a radiator thermally coupled to the engine. The system includes an electric variable speed fan having an outlet flow, where the outlet flow passes at least partially through the radiator. The system includes a controller structured to functionally execute certain operations for cooling the genset. The controller interprets a genset identification parameter and selects a cooling algorithm from a predetermined set of cooling algorithms according to the genset identification parameter. The controller further interprets genset operating conditions according to the cooling algorithm, and provides a cooling fan command in response to the genset operating conditions and the cooling algorithm. The electric variable speed fan is responsive to the cooling fan command.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: October 8, 2013
    Assignee: Cummins Power Generation IP, Inc.
    Inventors: Alyssa Marlenee, Arthur J. Punyko, Leo T. Steffl, Michael A. Fedewa, Lee Midlo, Daniel Woody
  • Publication number: 20110248511
    Abstract: A system includes a genset having an engine, an AC generator, and a radiator thermally coupled to the engine. The system includes an electric variable speed fan having an outlet flow, where the outlet flow passes at least partially through the radiator. The system includes a controller structured to functionally execute certain operations for cooling the genset. The controller interprets a genset identification parameter and selects a cooling algorithm from a predetermined set of cooling algorithms according to the genset identification parameter. The controller further interprets genset operating conditions according to the cooling algorithm, and provides a cooling fan command in response to the genset operating conditions and the cooling algorithm. The electric variable speed fan is responsive to the cooling fan command.
    Type: Application
    Filed: October 5, 2010
    Publication date: October 13, 2011
    Inventors: Alyssa Marlenee, Arthur J. Punyko, Leo T. Steffl, Michael A. Fedewa, Lee Midlo, Daniel Woody
  • Publication number: 20110115235
    Abstract: The present invention includes an engine mechanically coupled to a generator to provide mechanical power thereto and a housing assembly defining an interior space to at least partially enclose the engine and the generator. The housing has a first airflow path structured to provide cooling into the radiator and a second airflow path structured to provide cooling to at least one of the engine and the generator. A temperature sensor can be disposed within the housing and a variable speed fan can be in flow communication with at least one of the first airflow path and the second airflow path. Further, a controller may be in communication with the variable speed fan and the temperature sensor.
    Type: Application
    Filed: October 5, 2010
    Publication date: May 19, 2011
    Inventor: Leo T. Steffl