Patents by Inventor Stephanie A. Cetnar

Stephanie A. Cetnar 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).

  • Centrifugal compressor having positive crankcase ventilation tube extending through compressor housing to avoid high crankcase pressure
    Patent number: 11415141
    Abstract: A compressor assembly includes a compressor housing and a positive crankcase ventilation (PCV) tube. The compressor housing has an inlet port configured to receive intake air at ambient pressure, an outlet port configured to discharge pressurized air, and a hollow cylindrical section having an inner radial surface and an outer radial surface. The inner radial surface of the hollow cylindrical section defines the inlet port of the compressor housing. The PCV tube is configured to allow airflow between a crankcase of an engine and the inlet port of the compressor housing. The PCV tube extends through the hollow cylindrical section of the compressor housing and beyond the inner radial surface of the hollow cylindrical section.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: August 16, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Fengkun Wang, Carnell E. Williams, Stephanie A. Cetnar, Jordan B. Schwarz, Mark D. Finkel