Patents by Inventor Subrat Kumar Sahoo

Subrat Kumar Sahoo 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).

  • Stator coil coolant flow reduction monitoring
    Patent number: 8129873
    Abstract: A coolant flow reduction monitoring system for a rotary electric machine having stator coils within a plurality of slots of a stator thereof is provided. The stator coils are cooled by a coolant flowing in a plurality of passages provided in the stator coils. The system includes an outlet temperature sensor for measuring a coolant outlet temperature of the coolant in an outlet of at least one of the plurality of passages, a slot temperature sensor for measuring a temperature in at least one slot at a location along a length of each slot and outside of the stator coils, and an inlet temperature sensor for measuring a coolant inlet temperature of the coolant. A coolant flow reduction monitor generates an alarm indicating a coolant flow reduction based on the at least one coolant outlet temperature, the at least one slot temperature and the coolant inlet temperature.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: March 6, 2012
    Assignee: General Electronic Company
    Inventors: Sudhanshu Rai, Nicola Piccirillo, Subrat Kumar Sahoo, Ravikumar Sandrana
  • STATOR COIL COOLANT FLOW REDUCTION MONITORING
    Publication number: 20110241458
    Abstract: A coolant flow reduction monitoring system for a rotary electric machine having stator coils within a plurality of slots of a stator thereof is provided. The stator coils are cooled by a coolant flowing in a plurality of passages provided in the stator coils. The system includes an outlet temperature sensor for measuring a coolant outlet temperature of the coolant in an outlet of at least one of the plurality of passages, a slot temperature sensor for measuring a temperature in at least one slot at a location along a length of each slot and outside of the stator coils, and an inlet temperature sensor for measuring a coolant inlet temperature of the coolant. A coolant flow reduction monitor generates an alarm indicating a coolant flow reduction based on the at least one coolant outlet temperature, the at least one slot temperature and the coolant inlet temperature.
    Type: Application
    Filed: April 5, 2010
    Publication date: October 6, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sudhanshu Rai, Nicola Piccirillo, Subrat Kumar Sahoo, Ravikumar Sandrana