Patents by Inventor Jeffrey A. Lotterman

Jeffrey A. Lotterman 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).

  • Axial turbine with parallel flow compressor
    Publication number: 20110252791
    Abstract: A turbocharger including a turbine wheel having a hub-to-tip ratio of no more than 60% and blades with a high turning angle, a turbine housing forming an inwardly spiraling primary-scroll passageway that significantly converges to produce highly accelerated airflow into the turbine at high circumferential angles, and a two-sided parallel compressor. The compressor and turbine each produce substantially no axial force, allowing the use of minimal axial thrust bearings.
    Type: Application
    Filed: April 19, 2010
    Publication date: October 20, 2011
    Inventors: Jeffrey A. Lotterman, Vaclav Kares, Milan Nejedly, Daniel Turecek, Josef Ferda, Tomas Baron, Vit Houst
  • Axial turbine wheel
    Publication number: 20110252792
    Abstract: A turbocharger including a turbine wheel having a hub-to-tip ratio of no more than 60% and blades with a high turning angle, a turbine housing forming an inwardly spiraling primary-scroll passageway that significantly converges to produce highly accelerated airflow into the turbine at high circumferential angles, and a two-sided parallel compressor. The compressor and turbine each produce substantially no axial force, allowing the use of minimal axial thrust bearings.
    Type: Application
    Filed: April 19, 2010
    Publication date: October 20, 2011
    Inventors: Vaclav Kares, Jeffrey A. Lotterman