Patents Assigned to Kraftwork Union AG
  • Patent number: 4506860
    Abstract: A flow control valve, especially for use in controlling the operation of a steam turbine, includes a valve seat arranged in the interior of a valve housing, and a diffusor arranged downstream of the valve seat, as well as a valve member which is mounted in a valve member guide toward and away from the valve seat to accordingly throttle the flow of steam or a similar medium through the interior of the valve housing and into the diffusing channel of the diffusor. Minimization of alternating forces tending to excite the valve member into oscillating and stabilization of the flow of the medium in the channel disposed downstream of the valve seat are achieved by the provision of internal ribs within such a channel. At least three such ribs are provided, projecting at least substantially in the respective radial directions or parallel thereto from the surface bounding such channel.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: March 26, 1985
    Assignee: Kraftwork Union AG
    Inventors: Otto von Schwerdtner, Hans Judith