Patents by Inventor Luigi Tuis

Luigi Tuis 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).

  • Method of operating large turbo compressors
    Patent number: 4139328
    Abstract: A method of operating turbo compressors. To prevent pumping surges, blow-off valves are opened upon reaching a blow-off line extending parallel, with respect to time, to the pumping limit. The difference between the compressor discharge pressure and flow rate and the blow-off line is non-linearly amplified in a manner related to the actual pressure and flow rate so that the amplification gain is increased if the operating point of the compressor shifts into the non-permissible range beyond the blow-off line. Special provisions are made for starting the compressor.
    Type: Grant
    Filed: May 25, 1977
    Date of Patent: February 13, 1979
    Assignees: Gutehoffnungshitte Sterkrade AG, Siemens AG
    Inventors: Klaus D. Kuper, Rolf Albers, Hans-Peter Hillebrand, Wolfgang Hofmeister, Kurt Ewe, Luigi Tuis