Verdant Power

Dean Corren

John E Gray

Christopher Gray

Douglas A Lessig

Jamey Gerlaugh

A KHP system turbine for the production of energy in an underwater environment including a yaw stop arrangement for use in flowing steams where the flow direction of water therein is changeable, including bi-directional and multi-directional current flows, so that a rotatably mounted turbine remains in an optimal position within such changing flow conditions. The KHP turbine includes a rotational portion and one or two passive yaw stop assemblies that will control turbine yaw and keep the turbine oriented to capture energy from changeable underwater current flows.

Turbine yaw control

A rotor hub mounting arrangement for removably mounting a plurality of turbine rotor blades to the rotor hub in a compact and secure manner. The rotor hub includes an internal mounting assembly, preferably comprised of a series of interconnected mounting plates, positioned adjacent a series of foil shaped openings in the rotor hub into which the root end of turbine blades can be inserted and removably mounted to the internal mounting assembly.

Kinetic hydro power triangular blade hub

An underwater power generating system includes an underwater power generating device, a closed nacelle and a connecting cable system that is provided with an open passage way extending there along that is sealed at one end to the interior of the closed nacelle. The cable system can be used in a number of ways, such as by having the second end being sealed, to prevent air from escaping the closed nacelle, or by having the second end connected to a source of positive pressure thereby permitting the cable to be sufficiently pressurized to provide a positive pressure internally within the closed nacelle that is at least slightly greater than the nacelle at depth pressure, and thus greater than water pressure acting on the exterior of the closed nacelle, to prevent water ingress within the nacelle, as well as to transmit power and/or other data between the nacelle and shore monitoring and control facilities.

Cable jacket sealing, pressurization, and monitoring

An apparatus and method for mounting underwater turbines that includes a mechanism for correcting tilt error, including both the amount and direction of error, associated with the installation of underwater turbines onto anchoring or mounting structures so that the yaw axis of the mounted turbines will be as close as possible to a desired angle, preferably vertical.

Rotating wedge leveler

In a power generating system the remanent voltage of an induction machine is measured. The frequency of the remanent voltage is compared to a predetermined threshold. When the frequency of the remanent voltage is greater than the predetermined threshold the induction machine is connected to the power grid. Induction machine is disconnected from power grid once generated power drops below a predetermined threshold. Once the induction machine is disconnected, it is prevented from being reconnected to the power grid until a predetermined time period elapses.

Remanent voltage generator tachometer and control for induction machine

This relates to a modified turbine blade tip design using a fairing shaped design that increases the tip area efficiency of a kinetic hydropower turbine rotor blade while having a non-fouling characteristic and a tip design with the ability to shed weeds, debris, or other submerged materials that might have fouling potential.

Non-fouling kinetic hydro power system axial-flow blade tip treatment

A cantilevered power generation system and the support therefor comprising a clamping frame with first and second jaws that are relatively moveable and which permits the system to be mounted to a support located on or adjacent a shore line or water way so that power generation apparatus supported within the system can be positioned in the moving flow of water to generate power. The first and second jaws of the clamping frame support allows the power generation apparatus to be mounted adjacent a moving waterway and removed, as well as movable from one location to another and also allows the power generation apparatus to be raised thus permitting the repair and/or replacement of parts.

Growing community of inventors

Burlington, VT, United States of America

Dean Corren