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| Number | Title | Issue Date |
| 6533536 | Hydro-turbine runner A turbine installation comprising a turbine in combination with an electrical closed-loop control system. The turbine is disposed in a flow of water for producing electrical energy. The turbine includes a hollow hub and a plurality of runner blades pivota... | 03/18/2003 |
| 6152684 | Method for operation of hydraulic turbine A process for operating a hydraulic machine, especially a hydro-turbine, includes the step of detecting an actual machine state during operation of the machine by ascertaining operating data. The ascertained operating data includes flow through the turbin... | 11/28/2000 |
| 6095749 | Hydraulic turbine for enhancing the level of dissolved gas in water A turbine installation is adapted for enhancing the level of dissolved gas in water flowing therethrough. The installation comprises a water passageway for containing turbine components including a turbine runner. The water passageway extends from an uppe... | 08/01/2000 |
| 6038494 | Control system for enhancing fish survivability in a hydroelectric power generation installation A system for controlling a hydroelectric power production facility includes sensors for detecting the presence of fish adjacent to the facility. A controller linked to the sensors controls the orientation of control surfaces associated with a turbine/gene... | 03/14/2000 |
| 6016600 | Method of assembling a turbine runner situated in a water passageway A method of assembling a turbine runner while it remains situated in a water passageway. The turbine runner comprises a hub having a longitudinal axis, spaced apart outer and inner surfaces defining a cavity, and a corresponding plurality of blades pivota... | 01/25/2000 |
| 5954474 | Hydro-turbine runner A turbine, disposed in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner surface and a distal outer surface, a leading edge and a trailing edge separated by a water directing surface. Each blade is rota... | 09/21/1999 |
| 5947679 | Adjustable blade turbines A turbine, adaptable to improve the survivability of fish present in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner edge and a distal outer edge, a leading edge and a trailing edge separated by a wat... | 09/07/1999 |
| 5941682 | Draft tube peripheral plenum A shrouded turbine for enhancing the levels of dissolved gas such as oxygen in water flowing therethrough. The turbine comprises a rotatably mounted runner within a stationary casing. The casing includes a head cover, a discharge ring and a draft tube whi... | 08/24/1999 |
| 5924844 | Dissolved gas augmentation with mixing chambers A turbine installation for regulating the levels of dissolved gas such as oxygen in water flowing therethrough. The turbine installation comprises a runner rotatably mounted within a stationary casing. The runner includes a crown, a band, and a plurality ... | 07/20/1999 |
| 5924842 | Hydraulic turbine for enhancing the level of dissolved gas in water A turbine, adaptable to enhance the levels of dissolved gas such as oxygen in water flowing therethrough, includes a rotating shaft and a runner secured to the shaft. The runner includes a crown, a band and a plurality of runner blades. Each blade is defi... | 07/20/1999 |
| 5905311 | Integrated hydroelectric unit A hydroelectric installation comprises an electric generator and associated hydro-turbine. The hydro-turbine comprises a runner rotatably mounted within a casing or passageway in which water flows between an upper elevation source in fluid communication w... | 05/18/1999 |
| 5896657 | Method of making a turbine blade A method of making a reaction turbine blade for enhancing the level of dissolved gas in water passing through a turbine. The method includes the steps of machining a blank to have an overall blade profile and control points, and fixedly securing a perimet... | 04/27/1999 |
| 5879130 | Aeration through runner A turbine, adaptable to enhance the levels of dissolved gas such as oxygen in water flowing therethrough, includes a rotating shaft and a runner secured to the shaft. The runner includes a crown, a band and a plurality of spaced apart runner blades. Each ... | 03/09/1999 |
| 5864183 | Method and apparatus for optimizing performance of a pump-turbine A technique is disclosed for optimizing performance of a pump-turbine unit while operating normally in the pumping mode by identifying gate positions resulting in optimization of certain parameters of interest. Influences of gate positions on the optimize... | 01/26/1999 |
| 5825094 | Turbine array A hydroelectric power generating module comprises an upper housing section and a lower base section connected to the upper housing. The upper housing has a plurality of generators situated therewithin, and the lower base has a plurality of water flow path... | 10/20/1998 |
| 5823740 | Dissolved gas augmentation with mixing chambers A shrouded turbine for enhancing the levels of dissolved gas such as oxygen in water flowing therethrough. The turbine comprises a rotatably mounted runner, a stationary discharge ring and a band seal. The runner includes a crown, a band, and a plurality ... | 10/20/1998 |
| 5754446 | Method and apparatus for optimizing performance of a kaplan turbine A method and system for optimizing performance of a Kaplan turbine power generating unit are provided wherein an optimal "N-dimensional" virtual cam is populated with gate and blade positional settings producing maximum power output for a set of N operati... | 05/19/1998 |
| 4780051 | Hydraulic turbine aeration apparatus An apparatus for aerating water discharging from a hydraulic turbine comprises an air distribution apparatus secured to the trailing edges of a turbine runner. The air distribution apparatus comprises a manifold which contains a bounded air channel extend... | 10/25/1988 |
| 4648244 | Inclined reaction turbine with vortex suppression An open flume installation for a hydraulic turbine is disclosed having an open flume defined by a floor, a pair of side walls and a back wall of a foundation structure. A water passageway is formed through the foundation with an outlet submerged within th... | 03/10/1987 |
