Patents Assigned to EBARA International Corporation
  • Patent number: 6441508
    Abstract: A hydraulic turbine power generator mounted on a single shaft wherein the hydraulic turbine means includes a plurality of reaction type turbine stages arranged to be in combination, rotatably responsive to the hydraulic fluid coupled to the turbines. One of the turbine stages having axial turbine runner means mounted to the single shaft and having a plurality of adjustable blades for permitting the pitch of the blades to be adjusted for controlling the effective operative fluid head to cause the shaft to rotate at a preselected speed and including means for adjusting the pitch of the adjustable blades. The turbine stages can be a Francis type turbine and a Kaplan type turbine. The hydraulic turbine power generator can be oriented in an upward direction to cause the fluid flow to travel upwardly through the turbine stages and function as a two phase turbine expander resulting in the separation of the liquid phase from the gas/vapor stage.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: August 27, 2002
    Assignee: EBARA International Corporation
    Inventor: Everett Hylton
  • Patent number: 5659205
    Abstract: A sealless turbine generator mounted on a single shaft compising a radial turbine having a unique thrust equalizing mechanism mounted thereto and operative with a portion of the applied hydraulic fluid to the turbine radial runner and a thrust bearing for equalizing the generated thrust forces by providing a small axial, bidirectional movement of the thrust bearing and the elements mounted on the single shaft and an induction generator driven by the turbine. The shaft along with the induction generator and the turbine components except the turbine runner are isolated in a common housing and the entire assembly included in a submersible containment vessel having a fluid inlet and outlet for receiving the input hydraulic fluid flow at a preselected fluid pressure and velocity for controlling the speed of the turbine.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: August 19, 1997
    Assignee: EBARA International Corporation
    Inventor: German Louis Weisser