A reactive blade turbine system works vertically, horizontally, or at an angle and clockwise or counterclockwise according to blade angle and locking position and adjusts to variations in fluid flow such as changes in tidal currents to generate power more efficiently regardless of direction of fluid flow.

The present invention provides a turbine sub-runner that is positioned to be within the vortex zone of a turbine wicket gates (zone “S—R”, FIG. 1). The sub-runner includes at least two sub-runner blades, configured to monitor the relative flow of the vortex created by the wicket gates. A control mechanism is connected to the sub-runner shaft via gear and threaded interface, and is capable of transferring the relative (vs main-runner) rotational energy of the sub-runner into angular movement of the main runner blades. As the sub-runner interacts with the changing conditions of the main vortex within the zone “S—R”, it will act to automatically regulate, adjust, and control the angle of the main runner blades to optimize the performance of the turbine. The sub-runner uses the energy of the vortex existing in the zone “S—R” to perform the monitoring, regulation, adjustment and control of the main runner through regulating angular position of main runner blades.

A marine current turbine rotor comprises a hub and fixed and two or more pitchable blade sections configured to reduce bending moment loads on the pitch bearings and enable the use of non-standard, low-cost structural materials for the hub, blades, and pitch shaft. A submersible pitch drive mechanism or linkage in the hub rotates the pitch shaft to cause the pitchable blade section to move to a specified pitch position. The hub cavity is configured to be “wet” without the expense and maintenance requirement of seals to prevent water intrusion, utilizing water-lubricated pitch bearings.

A turbine unit for a hydraulic installation, and more in particular it deals with the hub of the turbine unit. The present invention proposes to provide means for adjusting a gap extent formed between the hub and the inner edge of the blade, this way dramatically increasing the performance of the turbine.

A turbomachine module with a longitudinal axis, the module comprising: a rotary casing rotatable around the longitudinal axis and arranged to carry a propeller provided with a plurality of blades; a system for changing the pitch of the blades of the propeller comprising: a control, and a mechanism for varying the pitch of the blades of the propeller connecting these blades to the control, wherein the control comprises a rotary actuator comprising a control body and a reference body which is integral with the rotary casing, and wherein the mechanism for varying the pitch comprises a synchronization ring which is driven in rotation around the longitudinal axis by the control body and which is guided in rotation on the rotary casing, the synchronization ring being connected to the blades.

A turbomachine module with a longitudinal axis, the module comprising: a rotary casing rotatable around the longitudinal axis and arranged to carry a propeller provided with a plurality of blades; a system for changing the pitch of the blades of the propeller comprising: a control, and a mechanism for varying the pitch of the blades of the propeller connecting these blades to the control, wherein the control comprises a rotary actuator comprising a control body and a reference body which is integral with the rotary casing, and wherein the mechanism for varying the pitch comprises a synchronization ring which is driven in rotation around the longitudinal axis by the control body and which is guided in rotation on the rotary casing, the synchronization ring being connected to the blades.

A hydrodynamic power generation assembly and method of use therefor for generating electrical power from the combination of kinetic energy, hydrostatic energy, and turbulent energy of water. The power generation assembly comprises a water accelerator assembly comprising a support structure which is at least partially buoyant and a baffle panel member (or an array of baffle panel members) having an opening, inter-panel spacing, or flow passageway around the baffle panel(s). A hydropower converter is supported from, by, or on the support structure and is operatively coupled to a generator. The hydropower converter is positioned behind baffle assembly. Water flowing through or around the baffle assembly has an increased velocity relative the ambient current and therefore is capable of generating more power relative to the ambient water where power generation assembly is deployed. Particular types of hydropower converters suitable for use with the invention are turbines and water wheels.

The invention relates to an outer turbine system (OTS) comprising an outer envelope having first and second ends with an axial inflow and a radial and/or axial outflow of a working gas or liquid. Inner turbine blades are disposed at an inner side of the envelope to rotate the turbine. The envelope and the blades can have a defined shape. The blades can be detachably attachable, adjustable, comprise hollow spaces. The envelope can comprise (adjustable) through openings. The turbine can be mounted in a housing, can include a defined feed casing and one or more stages. The turbine can be supported at defined portions, can be variably mounted, can work bidirectionally, can use regenerative power, can pump and can be fabricated from a defined material. The blades can be provided with a defined cooling system. The turbine can be coupled with another turbine, a mechanocomponent and/or an electrocomponent.

The invention relates to an outer turbine system (OTS) comprising an outer envelope having first and second ends with an axial inflow and a radial and/or axial outflow of a working gas or liquid. Inner turbine blades are disposed at an inner side of the envelope to rotate the turbine. The envelope and the blades can have a defined shape. The blades can be detachably attachable, adjustable, comprise hollow spaces. The envelope can comprise (adjustable) through openings. The turbine can be mounted in a housing, can include a defined feed casing and one or more stages. The turbine can be supported at defined portions, can be variably mounted, can work bidirectionally, can use regenerative power, can pump and can be fabricated from a defined material. The blades can be provided with a defined cooling system. The turbine can be coupled with another turbine, a mechanocomponent and/or an electrocomponent.

A system comprising a blade pitch system having a set of locking holes. A pitch drive assembly is coupled to the blade pitch system and configured to rotate clockwise or counterclockwise within a range of angular degrees to adjust a blade pitch angle. The system includes a pitch lock pin-and-hole system including an interface plate and at least one blade pitch lock assembly coupled to the interface plate. Each lock assembly includes a locking pin having a pin center axis parallel with a center axis of a locking hole to engage a respective one locking hole of the set to lock the blade pitch angle.