The present invention is related in general to air circulators, and in particular, to an air circulator with a vein control system to direct and adjust airflow patterns. According to an exemplary embodiment, the present invention provides adjustable, vertical veins that are attached to the outlet of a tower fan. According to a preferred embodiment, the veins are pivotally mounted in such a way that by turning a knob, the veins can either he directed into a focused air-flow pattern or adjusted to a divergent air-flow pattern, or at any setting in between.

A hydraulic pump is disclosed, which includes an input crank shaft configured to be interfaced with a shaft of a power generating device, one or more connecting rings coupled to the input crank shaft with an eccentric interface such that when the input crank shaft is rotating causes the connecting ring to rotate with an eccentricity, a fixed annular frame, and a plurality of hydraulic actuators annularly disposed between the one or more connecting rings and the fixed annular frame, each hydraulic actuator of the plurality of hydraulic actuators having a piston disposed within a cylinder and each further including a hydraulic input and a hydraulic output, the eccentricity between the connecting ring and the input crank shaft causes the plurality of hydraulic actuators to i) pump hydraulic fluid out of the hydraulic output, or ii) cause suction of hydraulic fluid from the hydraulic input.

A lock for preventing rotation of a rotor of a wind turbine has a rotatable lock pin, a pin support supportable in a nacelle of the wind turbine and a mechanism for rotating the lock pin. The pin support has a hub-facing face proximate a rotor hub. The rotatable lock pin is rotatably mounted on the pin support. The lock pin has a cammed portion extending away from the hub-facing face toward the hub. The lock pin inserted into a complementary rotor lock aperture on the rotor hub when the pin support is supported in the nacelle. Rotation of the lock pin causes engagement of an exterior surface of the cammed portion with an interior surface of the rotor lock aperture to immobilize the lock pin against the interior surface to prevent relative motion between the lock pin and the aperture to prevent rotation of the rotor.

A fluidic rotor rotary machine has a rotor comprising at least one blade (4) mounted on an arm (2) rotating about a main axis (1) of the rotor, the rotor being held by a support structure (5) in an orientation such that said axis (1) is essentially perpendicular to the fluid flow direction, the blade (4) being pivotally mounted about a rotational axis (3) parallel to the main axis (1), the machine being characterized in that it comprises means for generating a relative rotational movement of the blade (4) relative to the arm (2) at the rotational axis (3), thereby varying the blade angle, said means comprising an eccentric mechanism rotating on said blade rotational axis. Application in particular to propellers and generators operating according to Lipp-type or Voith-Schneider-type kinematics, with possible mode switching.

A lock for preventing rotation of a rotor of a wind turbine has a rotatable lock pin, a pin support supportable in a nacelle of the wind turbine and a mechanism for rotating the lock pin. The pin support has a hub-facing face proximate a rotor hub. The rotatable lock pin is rotatably mounted on the pin support. The lock pin has a cammed portion extending away from the hub-facing face toward the hub. The lock pin inserted into a complementary rotor lock aperture on the rotor hub when the pin support is supported in the nacelle. Rotation of the lock pin causes engagement of an exterior surface of the cammed portion with an interior surface of the rotor lock aperture to immobilize the lock pin against the interior surface to prevent relative motion between the lock pin and the aperture to prevent rotation of the rotor.

This invention relates to an improved vertical axis water turbine assembly (2) for generating rotary power from fluid flow, the water turbine assembly (2) having active blade pitch control. The water turbine assembly (2) comprises a plurality of vertical blades (20) disposed about a vertical assembly axis, each vertical blade (20) having a vertical blade axis and being adapted for movement about said vertical blade axis. The water turbine assembly (2) further includes guide means to control the movement of each of the plurality of vertical blades (20) as the water turbine assembly (2) rotates.

The present invention is related in general to air circulators, and in particular, to an air circulator with a vein control system to direct and adjust airflow patterns. According to an exemplary embodiment, the present invention provides adjustable, vertical veins that are attached to the outlet of a tower fan. According to a preferred embodiment, the veins are pivotally mounted in such a way that by turning a knob, the veins can either be directed into a focused air-flow pattern or adjusted to a divergent air-flow pattern, or at any setting in between.

The invention is made up of a supporting tower on which a rotor is installed, which comprises two parallel crossarms having two parallel rings fastened to the outer ends thereof which serve as a support for the bearings which, secured to the outer casing, make up the rotor, and said casing fixed on the inside thereof comprises a toothed wheel for transmitting the force of rotation, by epicyclic gearing, to the interior of the tower which forms a space suitable for housing the transmission, which is necessarily vertical, and runs towards the multiplier box. The blades are formed on two horizontal parallel beams which are joined and compacted together by metal boxes which house the guiding mechanisms and shafts that support and orient the blades.

A hydro power plant for the use of a water flow includes an endless moving belt on which a plurality of blades is foldably attached. The moving belt is guided around at least two deflection points in such a way that there are two rows of blades moving in opposite directions during operation. At least one of the two rows of blades is oriented inclined to the direction of the water flow. At the deflection points, the blades are folded over from a first blade position into a second blade position and from the second blade position back into the first blade position.

A lock for preventing rotation of a rotor of a wind turbine has a rotatable lock pin, a pin support supportable in a nacelle of the wind turbine and a mechanism for rotating the lock pin. The pin support has a hub-facing face proximate a rotor hub. The rotatable lock pin is rotatably mounted on the pin support. The lock pin has a cammed portion extending away from the hub-facing face toward the hub. The lock pin inserted into a complementary rotor lock aperture on the rotor hub when the pin support is supported in the nacelle. Rotation of the lock pin causes engagement of an exterior surface of the cammed portion with an interior surface of the rotor lock aperture to immobilize the lock pin against the interior surface to prevent relative motion between the lock pin and the aperture to prevent rotation of the rotor.