Patents by Inventor Engward Nielson

Engward Nielson 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).

  • Gas turbine engine lubrication fluid barrier
    Patent number: 9217336
    Abstract: A system for forming a barrier between a lubrication oil region and an air region of a gas turbine engine comprising a lubrication oil return path, a centrifugal oil slinger on a rotating member fixed to a spool of the gas turbine engine, a spiral groove configured to direct lubrication oil toward an oil return path, a labyrinth seal, and a cavity configured to form a non-contacting seal with the spiral groove and the labyrinth seal.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: December 22, 2015
    Assignee: Solar Turbines Incorporated
    Inventors: Engward Nielson, Michael Fox