Abstract: An aircraft system and method with a first counterweight rotating balancing rotor mass concentration, and a second counterweight rotating balancing rotor mass concentration to balance a first aircraft propeller. The system includes an inboard electromagnetic coil driver with a first inboard electromagnetic coil, and a second inboard electromagnetic coil, the inboard electromagnetic coil driver and the first counterweight balancing rotor and the second counterweight balancing rotor centered around the aircraft propeller shaft rotating machine member. The system/method utilizes a first control system controller to control the coils and position the mass concentrations to balance the first aircraft propeller. The system/method includes a third counterweight rotating balancing rotor mass concentration, and a fourth counterweight rotating balancing rotor mass concentration to balance a second aircraft propeller which positioned and controlled by a second control system controller.

Abstract: An aircraft system/method for propeller balancing.

Abstract: A vibration-resistant wind turbine and process for operation is provided. The wind turbine has a rotor with at least two blades, each of which includes an inclinometer arrangement with at least two axes, and an evaluating unit. The evaluating unit determines the bending and/or twisting of the blade relative to the longitudinal axis of the blade on the basis of signals from the inclinometer arrangement for each blade during operation. Each rotor blade further has at least one liquid tank which is capable of receiving or transferring liquid from or to a liquid reservoir via a transfer mechanism in response to the determined bending and/or twisting of the rotor blades to reduce vibration caused by imbalances, thereby extending the service life of the wind turbine.

Abstract: Method and apparatus for converting the kinetic energy of a moving fluid stream into useful work by using a parallel cascade of aerofoils or hydrofoils positioned therein. The foils may be provided with at least two degrees of freedom and adjacent foils move in antiphase. The foils are subjected to resonant oscillations, known as flutter, induced by the fluid flow. Profiled inflow and outflow ducts may be positioned upstream and downstream, and the apparatus may be enclosed in a profiled duct, to increase efficiency by altering the fluid velocity and pressure. The foils are cantilevered, supported by vertical rods but are otherwise unattached. A cascade comprised of independent foil modules, each including a foil, a power conversion module and a motion control module, may be programmed to (1) receive energy from a fluid stream to generate power, or (2) transfer energy into a fluid stream to create propulsion or pumping.

Abstract: Systems and methods to generate power using wind and controlled air movement and related structures to more cost effectively produce energy and protect system components.

Abstract: A system for reducing vibrations in a rotating system uses a variable viscosity medium that is redistributed in a housing connected to the rotating system. Specifically, the medium is responsive to a control signal that is generated as a function of rotational speed of the rotational system. The control signal activates a triggering device that promotes a change in viscosity of the medium such that it is distributed within the housing in a manner that reduces vibratory loads.

Abstract: A device for converting wind energy into a reciprocating motion. The device has a sail that extends in a main wind direction and pivotally oscillates when subjected to wind. The sail is connected to a first support that is configured to move in a first direction when the sail during its oscillation moves towards any of two outermost positions from a neutral position, and move in a second direction opposite the first direction when the sail during its oscillation moves towards its neutral position from any of its outermost positions, thereby creating a reciprocating motion of the first support when the sail is subjected to the wind. A further device, a method and a system are also described.

Abstract: A fluid flow-driven energy conversion system configured to oscillate in the presence of fluid flow. The system comprises an adjustable electromechanically controlled fluidfoil, a balance beam, a compensatory weight and an angle of attack positioner to adjust the angle of attack of the fluidfoil with respect to fluid flow. The fluidfoil is controlled to permit a consistently optimum angle of attack into the prevailing flow. The kinetic energy of the oscillating action is transferred to a connector for energy transfer to one of a variety of energy storage systems for converting the energy of the linear oscillating motion to other desired forms of energy.

Abstract: A fluid flow-driven energy conversion system configured to oscillate in the presence of fluid flow. The system comprises an adjustable electromechanically controlled fluidfoil, a balance beam, a compensatory weight and an angle of attack positioner to adjust the angle of attack of the fluidfoil with respect to fluid flow. The fluidfoil is controlled to permit a consistently optimum angle of attack into the prevailing flow. The kinetic energy of the oscillating action is transferred to a connector for energy transfer to one of a variety of energy storage systems for converting the energy of the linear oscillating motion to other desired forms of energy.

Abstract: A propeller related vehicle in accordance with one embodiment of the present invention is described as a helicopter having an airframe housing a motor mechanism for powering a main propeller attached to a main drive shaft that extends vertically through the airframe and for powering a tail rotor. The helicopter further includes a horizontal stabilizing mechanism attached between the main propeller and the main drive shaft, which permits the main propeller to freely pivot about the main drive shaft independently from the airframe. As such when the main propeller is rotating and the main propeller begins to pitch, the rotating main propeller has a centrifugal force created by the rotation thereof and will tend to pivot about the horizontal stabilizing mechanism in a manner that offsets the pitch such that the helicopter remains in a substantially horizontal position. In addition various main propeller configurations may be employed that provide additional self-stabilization.

Abstract: A vertical-axle wind power machine comprises a vertical axle, a plurality of jointed radial arms, a plurality of counterbalanced oblique blades at the support points thereof, a friction-rewarding rotary speed multiplying transmission, and an automatic rotary speed regulating means to be performed by either a wind-operated or an alternative digital controlled rotary speed regulating device; the combination of which provides the oblique blades with great sensitivity to the alternation of lee wind and head wind for automatic swinging to the most efficient lee angle at upstanding and overturned positions to sail nearly three quarters and streamline against the head wind resistance for the remaining quarter every circle of rotation, is able to convert the centripetal and centrifugal component forces to the same torque direction of the tangential component force from the same blade by an eccentric-guided angular bracket means and a fork-rooted radial arm, is able to offset the friction loss in the rotary speed mult

Abstract: A fluid forcing device comprising many rotatable slender elements that converts mechanical energy into fluid energy by mechanically arranging and maintaining, at all time, the rotatable slender elements in a predetermined wave form and by mechanically moving the wave form in a direction normal to the rotation of the elements by an improved drive comprising two fluted rollers. The new drive reduces the weight and complexity of the entire fluid forcing device and renders it more mechanically rigid and less vibration prone.

Abstract: A sight flow apparatus includes a body designed to be connected in-line to fluid pipes within a manufacturing plant or other facility. One or more window assemblies are removably mounted on the sides or ends of the body to allow visual inspection of fluid flow through the body cavity. A fluid indicator device i.e., a flapper assembly or a rotor assembly, is mounted within the body cavity and supported by an axle extending between the windows, between the body itself, or between a pair of alignment washers located within the body. The rotor assembly includes a plurality of planar blades which are interconnected to form generally radially extending vanes. An enlarged indicator cap is coupled to each end of the rotor assembly to improve visual examination of fluid flow effects, to lock the interconnected blades together and to prevent the blades from contacting the windows, alignment washer or body.

Abstract: An apparatus for converting air flow into mechanical motion using a single variable direction airfoil movable within a vertical track. Change in vertical direction of the airfoil and associated angle of attack is self-determined within a pre-set range dependent on work requirement.

Abstract: A wind-powered machine is provided in which a vane is driven through a vertical or horizontal arc with a back and forth motion, the motion of the vane serves to actuate a power generating mechanism, in the case where the vane moves in a vertical arc the actuation of the power generating mechanism can be achieved without any translation of the direction of the power transmission system; a governing mechanism serves to vary the response of the vane relative to the wind velocity.

Abstract: An apparatus and method are provided for agitating liquids, maintaining solids in suspension and breaking up surface ice on waterways is provided in which a base plate having a plurality of dependent probes adapted to be immersed in a liquid to be agitated in subject to vibratory energy produced by selectively rotating eccentric weights in a vibratory case fixed on top of said base plate.

Abstract: A wind power generator using an element opposing the force of the wind pivotally mounted and extending radially from the pivot. A counterweight also mounts to the pivot and extends radially from the same. The wind opposing element also mounts to another pivot between a first and second portion thereof. A second weight aids the turning of the wind opposing element about the first pivot to create a rocking motion of the counterweight.

Abstract: A wind-powered device having a pair of flaps affixed to a rotatable axle which is coupled to a cable. The device is suitable for use in gusty winds prevailing at ground level, thereby obviating high towers required for conventional wind-energy conversion systems.

Abstract: This specification discloses an improved means for adjusting the movement of a gyratory head fan comprising a turntable driven by the fan motor and supporting an adjusting mechanism which changes the position of a socket member for the ball of a gyratory linkage with respect to the axis of rotation of the turntable. The adjusting mechanism comprises a rim which may be held against rotation relative to the turntable, lugs on the rim which engages lugs on a rotatably mounted member incorporating the socket such that the member is rotated to change position of the socket. The rim may be held against rotation by means of a plunger which engages projections on the rim. Spring loaded pawl means may be provided to hold the member in several predetermined positions to provide different modes of operation.