Patents by Inventor Gowrisankar Devaraj

Gowrisankar Devaraj 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).

  • Multi-speed transmission system and operating method
    Patent number: 12208677
    Abstract: Methods and systems are provided for a multi-speed transmission. The multi-speed transmission includes a housing, an electric motor with a stator and a rotor positioned within the housing, and a planetary assembly positioned on a first axial side of the electric motor. The transmission further includes a first and second clutch unit spaced away from one another, each including a synchronizer, and designed to selectively rotationally couple to the rotor and to rotationally couple the rotor to different gears in the planetary assembly and where the electric motor and planetary assembly are coaxially arranged.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: January 28, 2025
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventor: Gowrisankar Devaraj
  • Multi-speed gearbox and the drive axle made therewith
    Patent number: 11949319
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: April 2, 2024
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventors: Gowrisankar Devaraj, Eric M. Engerman, Charles B. Lohr, III, Gordon M. McIndoe, Travis J. Miller, Ryan D. Nelms, Matthew Simister, Ned W. Wright
  • MULTI-SPEED GEARBOX AND THE DRIVE AXLE MADE THEREWITH
    Publication number: 20230216374
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.
    Type: Application
    Filed: February 24, 2023
    Publication date: July 6, 2023
    Inventors: Gowrisankar DEVARAJ, Eric M. ENGERMAN, Charles B. LOHR, III, Gordon M. MCINDOE, Travis J. MILLER, Ryan D. NELMS, Matthew SIMISTER, Ned W. WRIGHT
  • Multi-speed gearbox and the drive axle made therewith
    Patent number: 11621606
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: April 4, 2023
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Gowrisankar Devaraj, Eric M. Engerman, Charles B. Lohr, III, Gordon M. McIndoe, Travis J. Miller, Ryan D. Nelms, Matthew Simister, Ned W. Wright
  • MULTI-SPEED GEARBOX AND THE DRIVE AXLE MADE THEREWITH
    Publication number: 20200106337
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 2, 2020
    Inventors: Gowrisankar Devaraj, Eric M. Engerman, Charles B. Lohr, III, Gordon M. Mclndoe, Travis J. Miller, Ryan D. Nelms, Matthew Simister, Ned w. Wright