Patents by Inventor Jurgen Czech

Jurgen Czech 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).

  • Secondary-side residual-heat removal system for pressurized-water nuclear reactors
    Patent number: 5428652
    Abstract: A pressurized water reactor residual heat extraction system uses the secondary cooling circuit to extract the residual heat in certain operating and malfunction conditions. A steam generator (D1) has a connection, located on the live-steam and feed-water side, to the secondary circuit side of a safety condenser (SK1). The tertiary circuit side of the safety condenser is fed from a water reservoir (B) located at a physically higher level. The steam generated is vented to the atmosphere through a blow-off line (b2) which may include a separator. A make-up feed device (E1) is connected to the secondary side of the steam generator. Because of the higher location of the safety condenser with respect to the steam generator, the heat energy in the secondary cooling circuit circulates by natural circulation.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: June 27, 1995
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hermann-Josef Conrads, Jurgen Czech, Horst Goggelmann, Werner Leidemann, Pius Mackert, Walter Merklein, Rainer Schilling, Bernd Staehle, Wilfried Stoll, Paul Uyttendaele