Patents by Inventor Johann-Kaspar Scherrer

Johann-Kaspar Scherrer 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 setting a main controlled variable during the operation of a gas-turbine group
    Patent number: 5704205
    Abstract: In a method of setting a main controlled variable during the operation of a gas-turbine group, the gas-turbine group essentially comprises a compressor (40), at least one combustion chamber (43), at least one turbine (41) and a generator (46). A desired value (3) is compared with a measured value (4) and the resulting main control difference (5) is hierarchically allocated via a management unit (1) to at least one cascade (9, 18). The cascade (9, 18) is essentially composed of a main-controlled-variable controller (6, 15) and a downstream variable controller (8, 17) which acts on the respective variable actuator (14, 23).
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: January 6, 1998
    Assignee: Asea Brown Boveri AG
    Inventors: Stephan Hepner, Johann-Kaspar Scherrer, Bozidar Seketa