Patents by Inventor Ernst Walz

Ernst Walz 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).

  • Sealing-steam feed
    Patent number: 6237543
    Abstract: In some operating states, supplemental additional sealing steam must be fed to the sealing-steam system of a steam turbine. The feeding of supplemental sealing steam from the live-steam line involves considerable problems. According to the invention, therefore, the sealing-steam system is connected via a feeder line to a bleed point of the superheater of the boiler, so that the temperature of the supplemental sealing steam is well below the live-steam data and, in particular, is compatible with the material temperature in the region of the high-pressure shaft seal.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: May 29, 2001
    Assignee: Alstom (Switzerland) Ltd
    Inventors: Geral Charoton, Jean-Pierre Rickli, Ernst Walz, Peter Zeller