Abstract: The invention is an aircraft power generation system which includes a tandem generator (10) which includes left and right generators (14, 15) arranged within a single housing (12). The left and right generators (14, 15) are driven at the anti-drive end of the tandem generator (10) by a gear arrangement including gears (22), (24) and (26). A phase indexer (36) including a phase adjust nut (38) is arranged in conjunction with driven gear (26) to provide for "vernier" phase-alignment of the generator rotors. In an alternative embodiment, phase-alignment of the generator rotors is accomplished by arranging them in-line to form an in-line tandem generator (10').In a preferred arrangement, an in-line generator (70) is arranged to be isolated from an aircraft engine via an electromechanical disconnect (108).

Abstract: The invention relates to a starter-generator machine (10) for starting turbine type aircraft engines. The machine combines an induction motor with a synchronous samarium cobalt generator. In the machine, a rotor-shaped stator (22) is fixed and positioned inside a squirrel-cage induction rotor (18) which has an array of samarium-cobalt magnets (24) attached on the outer diameter thereof. The compound dual machine operates as a starter by using the induction rotor to accelerate the permanent magnet rotor, and thus the aircraft engine via a drive pinion (34), up to some low synchronous speed, when ac power is applied to the outside stator (16) to lock in the permanent-magnet rotor (24) synchronously with the rotating field created in the stator (16) of the synchronous generator. As the speed of the rotor (24) is then increased, the engine speed is also increased via the drive pinion (34).In a second embodiment, a cartridge type induction-motor (70) is utilized to initially start an aircraft engine.

Abstract: The invention relates to a power generation system comprising a Brayton cycle turbine for directly driving a first air compressor. A motor/generator is adapted to drive said turbine in the power generating condition and be driven by said turbine in the start condition. A second air compressor is also directly driven by said turbine and is coupled to said turbine, motor/generator, and said first air compressor by a gear system. A heat exchanger between said second air compressor and said turbine provides heat energy to drive the system.

Abstract: A float having depending fins and a curved surface on which waves impinge. The float provides an additional lift over and beyond its buoyancy. The float is coupled through a swivel to allow it to turn into the direction of waves. The float is additionally provided with an arrangement to compensate for variations in the mean water level due to tide action.

Abstract: A hydraulic dynamic electric machine comprising a rotary portion including a rotary shaft and an electromagnet adapted to rotate together with the rotary shaft, a water wheel connected to a lower portion of the rotary shaft and adapted to drive the rotary portion, and a thrust bearing for bearing the thrust produced by the rotary portion and the water wheel, with the thrust bearing being disposed below the water wheel and having hydrostatic type bearing pad which makes use of pressurized water as the lubricant.

Abstract: An improved hydro-turbine having a casing with an inlet port and an outlet port. A driveshaft is journaled in the casing and a rotor is secured to the driveshaft. The rotor has a cylindrical member whose radius is at least greater than 50 percent of the radius of the peripheral wall casing. A plurality of vane members extend outwardly from the outer radial surface of the cylindrical member. The vanes are spaced around the perimeter of the cylindrical member and each vane has a front surface and a rear surface. The front surface is substantially flat and the rear surface is convex in cross-section. The bottom edge of the rear of each vane is located substantially adjacent the bottom edge of the front surface of the adjacent vane member. The vane members extend substantially across the entire width of the cylindrical member.

Abstract: A wave energy converter comprising a float group including at least two floats connected by elongated rigid links disposed at a right angle to the direction of incidence of waves, which floats are free from the coastal ground and sea bed and allowed to heave, to sway, and to roll. A dynamic system of the converter absorbs the wave energy through the relative movements between the floats and the links and between the adjacent links while the natural frequency of this system is approximately tuned to the frequency of the incident wave. In this way, the reflected waves and transmitted waves caused by this system are suppressed substantially since the energy of the incident wave is virtually absorbed. The wave energy converter may be provided with some air chambers and air turbines or one-directional rotating means actuated by this dynamic system so as to drive electric generators coupled thereto.

Abstract: A wind electric system intended to provide power to a power grid, for use with a wind turbine which has no starting torque. The generator is one which can function as a motor as well. When the wind is too light to permit generation, an overriding clutch mechanically disconnects the generator shaft from the turbine shaft. The clutch has also the capability of locking the generator shaft to the turbine shaft in response to a control signal. When wind speed is great enough to permit generation and the turbine is stopped, a control signal is issued locking the generator shaft to the turbine shaft. Power from the power grid causes the generator to function as a motor and accelerate the turbine to permit it to be rotated by the wind. The clutch is then returned to overriding operation and electrical generation continues until wind speed again becomes too light.

Abstract: The invention is an electric starting system for starting aircraft jet engines (32), (34) and (36) using an APU (10) free turbine driven generator (12). The operating power factor of the starter-generator (12) is controlled during start mode operation of the APU (10) by monitoring the line current via a current transformer (58). Contactors (14) and (16) connect the generator (12) into the aircraft's ac power system and ac starting system, respectively. A master start relay (22) is provided, and is closed in the `start` mode such that a power electronics inverter (24) may be powered from external power via contactors (18). The variable-voltage/variable-frequency output of inverter (24) is controlled via a logic controller (26) and can be applied sequentially to the three engine driven generators (32), (34) and (36) via start relays (42), (44) and (46) to start the engines (32), (34) and (36) respectively.

Abstract: Power unit for automobile vehicle utilizing an internal combustion engine down to the lowest rotation speeds.Power unit for automobile vehicle comprising an internal combustion engine with its conventional inertia flywheel, a reversible electric machine, a storage battery, a speed variator coupling the electric machine to the internal combustion engine and an electric control circuit, the assembly being arranged to enable the internal combustion engine to operate at rotational speeds considerably lower than those normally afforded by its inertia flywheel by regularizing its output torque through instantaneous, alternately positive and negative exchanges of mechanical energy between the internal combustion engine and the electric machine and of electrical energy between the electric machine and the storage battery.

Abstract: A wind driven device for driving an electrical generator to produce electricity having a base, an anchor pole stationarily affixed to the base, and a drive assembly support rotatably mounted around the anchor pole. A plurality of gears engage the lower portion of the drive assembly support. The device also includes an upper exterior wind column support and a lower exterior wind column support. A plurality of attachment beams are connected to the drive assembly. A plurality of wind panel support columns connect to at least one of the attachment beams and to the upper and lower exterior support. A plurality of wind panels pivotally engage the wind panel support columns and is responsive to the wind such that the force of the wind against the wind panel causes the drive assembly support and the attached gears to revolve to provide for a power take off from the revolving gears to drive the electrical generator.

Abstract: A windmill drives a drum having a cable coiled thereon, the cable holding a weight. The windmill lifts the weight, and the weight on dropping drives an AC generator. A plurality of drums and weights are mounted on a first common shaft connected with the AC generator, and a plurality of drive pulleys are mounted on a second common shaft connected with the windmill. Individual clutches selectively connect the drums/weights with the first shaft for driving the AC generator, and individual clutches selectively connect the drive pulleys with the second shaft.

Abstract: Apparatus for withdrawing the rotor from the stator in a bulb-type generator makes the rotor and the inner portion of the stator accessible for repair or maintenance without having to disassemble the housing and stator. A pair of detachable beams are placed in the housing when the rotor is stationary so they extend through holes provided in the rotor above the shaft on which the rotor turns. The beams are conveniently mounted to the upper stay tower structure at their downstream end, and to the housing at their upstream end. An additional support member may be used between the beams and the bottom of the housing at the upstream end of the beams. Shoes which slidably engage the beam are placed between the beam and the rotor to support the rotor. Preferably the shoes include a hydraulically operated piston which can be extended to ensure positive engagement with the beam. The rotor has an inner ring which is bolted to a driving disc on the shaft.

Abstract: A fast rotating ferrite ring engine that is started by an external starting motor generates a medium mechanical power continuously. The rotating ferrite ring engine body is composed of thin circular ferrite rings affixed to a nonmagnetic plate connected to external devices necessary for the inventive operations, a heat portion, a magnetic field generator both of which are located in the same place where the rings are passing through, and a cooling portion through which the ferrite rings also are passing and restoring cyclically the heated portion of the rings to the cool state that is magnetizable.After starting by an external starter motor, the ferrite ring engine is controlled at a constant peripheral velocity V.sub.O by the countertorque of an externally connected electric power generator.In this state, the magnetic energy which enters into the heat portion is made to V.sub.O .multidot.HB.sub.S .multidot.S.multidot.(1/8.pi.).multidot.10.sup.

Abstract: A wave responsive generator comprises a buoyant float having an outer fixed shaft downwardly depending from the float with an inner rotatable drive shaft movably mounted within the outer shaft. At the lower most portion of the shaft opposite the float is a turbine affixed to the inner drive shaft opposite the float. A plurality of reversible vanes are movably mounted on the turbine for transmitting rotational energy to the inner drive shaft responsive to either upward or downward motion of the shaft responsive to wave action on the float. An electric generator or alternator is mounted on the float and cooperates with the inner rotatable shaft to produce an electric current responsive to the rotation of the inner shaft.

Abstract: A low collapse speed, self priming, lubricating oil pumping system for a turbomachine, operatively driven by the turbine main shaft, is disclosed. In a preferred form, the invention includes a permanent magnet generator operatively coupled to shaft of the turbine-generator or turbomachine being lubricated and driven thereby to produce an electrical output; an induction motor directly connected to the electrical output of the permanent magnet generator without intervening protective devices such as fuses, switches, and so forth; and a positive displacement pump located in or in proximity to an oil reservoir and driven by the induction motor to pump oil from the reservoir at a flow rate and pressure sufficient to supply oil to the turbine-generator or turbomachine during all operating phases thereof during which lubrication is required.

Abstract: Magnus cylinders are mounted for rotation at right angles to shafts that are revolved about a generally vertical axis. The shafts are free to rotate 180.degree.. The Magnus cylinders are continuously rotated in the same angular direction. At one position of revolution of the shafts, the cylinders rotate on an axis generally parallel to the axis of revolution of the shafts. When the apparatus is immersed in a fluid flow (gaseous or liquid) a torque of rotation is developed when the shafts are aligned with the fluid flow, and this torque of rotation is reduced as the shaft approaches a position transverse to the fluid flow. As the shafts pass this transverse position, a torque is developed by the rotating cylinder that rotates the shafts 180.degree. until the formerly downwardly depending cylinder is now upright and the formerly upright cylinder is now downwardly depending on its shaft.

Abstract: A control circuit and auxiliary power supply and a switching means for connecting the load selectively to the auxiliary power supply and the main power supply.The main power supply may be a public utility power line, and the auxiliary power supply is a windmill, a motor and generator all connected together on a common shaft. A control means senses the output voltage of the generator or output frequency and controls the switch to either connect the load to the power line or the auxiliary power supply.A battery is supplied for storing excess windmill power and for driving the motor and generator during periods of low wind.

Abstract: The subject-matter of the present invention is a system for the generation of electrical energy by utilizing the kinetic energy of seawater, comprising a floating body exhibiting two floating supports (1) connected by a lower platform (2), a main deck and a large impeller (5) arranged between them and having a horizontal axis (12). The impeller axis is carried by vertical platelike supports (4) which divide the impeller vanes into several sectors. The rotary movement of the impeller is transmitted to a machine park (19-22) located on the main deck (3) for the generation of electrical energy. Despite its large dimensions the system according to the invention is distinguished by its high stability (FIG. 7).

Abstract: The front portion (116) of the immersed turbo-generator bulb houses the alternator (5, 19). The intermediate portion (114) houses the gear box (26), and the rear portion has the turbine (122 projecting therefrom. The intermediate portion is of greater diameter than the front portion and they are interconnected by a flange (2). The external cooling is by tubes (7) through which cooling air flows, and having one end connected to orifices through the flange (2).