Patents Assigned to Voith Turbo KG
  • Patent number: 4023362
    Abstract: A scoop-trimmed fluid coupling wherein the transmitted torque decreases continuously with increasing ratio of runner speed to impeller speed at each degree of filling of the working circuit with liquid. During acceleration of the runner, the scoop tube is moved by its actuator from a "circuit empty" to a "circuit full" position in several stages and at different speeds so that the torque which is transmitted by the coupling during acceleration of the runner remains substantially constant. If the load upon the runner varies from acceleration to acceleration of the runner, the operation of the actuator during acceleration of the runner is modified by a controller system which monitors the energy requirements of the prime mover for the impeller or the acceleration of the runner.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: May 17, 1977
    Assignee: Voith Turbo KG
    Inventors: Thomas Rogner, Klaus Sauka
  • Patent number: 3999385
    Abstract: A hydrodynamic coupling for driving pumps, fans, and the like at variable shaft speeds includes coaxial primary and secondary impellers. The space defined within these impellers contains variable quantities of working fluid for transmitting the shaft torque from one impeller to the other. One of the impellers is equipped with a co-rotating casing, which encloses the other impeller and may serve to force working fluid into the working chamber. The fluid exits from the working chamber through an aperture in the higher-lying impeller and returns to a storage chamber from which a conduit transports it to the casing. A control valve in the conduit permits external flow control.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: December 28, 1976
    Assignee: Voith Turbo KG
    Inventors: Heinz Hoeller, Klaus Nolz, Thomas Roegner