Patents by Inventor Dieter Lulay

Dieter Lulay 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-cooled turbogenerator
    Patent number: 6037683
    Abstract: A gas-cooled turbo-generator has a pressure-tight casing with a stator disposed therein and a rotor. The turbo-generator also has cooling air feeders and dischargers disposed in the casing for circulating cooling air at a super atmospheric pressure in the casing. The stator and rotor have longitudinal slots for accommodating conductors and a proportion of conductor volume per longitudinal slot is at least twice a volume of the insulation. There is also provided an air/water heat exchanger for absorbing heat from the cooling air.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: March 14, 2000
    Assignee: ABB Patent GmbH
    Inventors: Dieter Lulay, Yvonne Riedling