Patents by Inventor Otto Schiele

Otto Schiele 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).

  • Means for abruptly terminating the flow of fluid in closed fluid circuit systems of nuclear reactor plants or the like
    Patent number: 4147465
    Abstract: A nuclear steam supply system wherein each of a plurality of centrifugal pumps begins to operate with full cavitation in response to an abrupt drop of system pressure in the event of leakage. This is achieved by influencing a net positive suction head of each pump over the entire range of fluid flow and/or by influencing the net positive suction head upstream of the pumps. The first mode of causing the pumps to operate with full cavitation includes an appropriate selection of the inlet angle and/or inlet diameter of the pump impeller, the provision of auxiliary stationary guide wheels which are located upstream of the pumps and can circulate the fluid in or counter to the direction of rotation of the respective pump impellers, or the provision of suitably curved guide vanes in the pumps. The second mode includes interrupting the admission of undercooled fluid into the system upstream of the pumps.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: April 3, 1979
    Assignee: Klein, Schanzlin & Becker Aktiengesellschaft
    Inventors: Otto Schiele, Dusan Florjancic
  • Method and means for abruptly terminating the flow of fluid in closed fluid circulating systems of nuclear reactor plants or the like
    Patent number: 4073595
    Abstract: A nuclear steam supply system wherein each of a plurality of centrifugal pumps begins to operate with full cavitation in response to an abrupt drop of system pressure in the event of leakage. This is achieved by influencing the net positive suction head of each pump over the entire range of fluid flow and/or by influencing the net positive suction head upstream of the pumps. The first mode of causing the pumps to operate with full cavitation includes an appropriate selection of the inlet angle and/or inlet diameter of pump impeller, or the provision of suitably curved guide vanes in the pumps. The second mode includes interrupting the admission of undercooled fluid into the system upstream of the pumps.
    Type: Grant
    Filed: September 4, 1973
    Date of Patent: February 14, 1978
    Assignee: Klein, Schanzlin & Becker Aktiengesellschaft
    Inventors: Otto Schiele, Dusan Florjancic
  • Method and means for abruptly terminating the flow of fluid in closed circulating systems of nuclear reactor plants or the like
    Patent number: 3977808
    Abstract: A nuclear steam supply system wherein each of a plurality of centrifugal pumps begins to operate with full cavitation in response to an abrupt drop of system pressure in the event of leakage. This is achieved by influencing the net positive suction head of each pump over the entire range of fluid flow and/or by influencing the net positive suction head upstream of the pumps. The first mode of causing the pumps to operate with full cavitation includes an appropriate selection of the inlet angle and/or inlet diameter of the pump impeller, the provision of auxiliary impellers which are located upstream of the pumps and can circulate the fluid in or counter to the direction of rotation of the respective pump impellers, or the provision of suitably curved guide vanes in the pumps. The second mode includes interrupting the admission of undercooled fluid into the system upstream of the pumps.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: August 31, 1976
    Assignee: Klein, Schanzlin & Becker Aktiengesellschaft
    Inventors: Otto Schiele, Dusan Florjancic