Abstract: An apparatus and method is disclosed for over-rating a wind turbine using turbulence prediction. Weather forecast information is used to determine whether there is a risk of turbulent conditions occurring at the site of the wind turbine. The wind turbine is over-rated if turbulent conditions are not predicted, and conversely over-rating is cancelled or reduced if turbulent conditions are expected. This allows an increase in the annual energy production of the wind turbine to be realised. The weather forecast information may be combined with real time measurements of operating conditions to supplement the predictions.

Abstract: A method and system for generating electrical energy from wind are described. In an example, a method includes capturing wind in an intake on an exterior surface of a structure. The method also includes directing, via a duct, the wind from the intake to a centrifugal fan and, while directing the wind from the intake to the centrifugal fan, compressing and accelerating the wind in the duct. The method further includes receiving, in the centrifugal fan, the wind from the duct and rotating, via the received wind, a fan blade assembly in the centrifugal fan. The method still further includes generating electrical energy, via a generator, based on the rotation of the fan blade assembly.

Abstract: The invention has for object a system for assembling a tower for a wind generator consisting of a plurality of blocks, comprising: a structure for lifting each one of said blocks, and a structure for supporting said lifting structure, the lifting structure being moveable in relation to the support structure between a block-gripping position and a block-holding position, the lifting structure comprising a body for gripping each block.

Abstract: A floating multi-turbine wind power platform for offshore power production, wherein the platform has a substantially elongated shape with an extension direction and being attached to at least two mooring points for securing the platform at its operation site in an original position in relation to the mooring points. The platform includes a device for rotation of the platform (MR1) around an essentially vertical first axis (z1) and further includes at least two wind turbines arranged substantially in a straight line corresponding to the extension direction of the platform and the at least two wind turbines each includes a structural support component and a rotor component. The rotor component is attached to a nacelle which is arranged to rotate using a device for rotation of the nacelle (MR2).

Abstract: The invention relates to techniques for verifying a nacelle yaw position sensor installed on a wind turbine and for taking restorative action to control the nacelle yaw position. The invention relates to a method performing the comprising determining a first absolute wind direction signal associated with the first wind turbine; determining a second absolute wind signal direction signal associated with the plurality of other wind turbines; comparing the two wind direction signals; and issuing a nacelle yaw position sensor fault signal if the first signal is beyond a predetermined error range of the second signal. A benefit of the invention is that it enables the detection of an inaccurate nacelle yaw sensor without direct measurement or inspection.

Abstract: An offshore wind turbine generator comprises a tower 1 and a platform 2. The tower 1 is provided with a side door 4 accessed from the platform 2 using a stairway 5 leading to an upper platform 6. The upper platform 6 is formed from the upper surface of a cabinet 7 which houses a diesel backup generator. Both the backup generator and the cabinet 7 are mounted to the tower 1 by bolts, such that the cabinet and backup generator are fully supported by the tower 1. A diesel fuel tank 12 is also mounted to the tower 1 by bolts. The fuel tank supplies diesel fuel to the backup generator.

Abstract: A system for utilizing power extracted from intraluminal pressure changes may comprise: (a) an intraluminal generator; (b) an intraluminal pressure change-receiving structure operably coupled to the intraluminal generator; and (c) a power utilization device. A system for utilizing power extracted from intraluminal pressure changes may comprise: (a) means for receiving an intraluminal pressure change; (b) means for converting an intraluminal pressure change into energy with an intraluminal generator; and (c) means for providing the energy to a power utilization device.

Abstract: A compressor and a refrigeration system having the same are provided. The compressor includes a crankcase, a thrust bearing and a crankshaft. The crankcase is formed with a crankshaft hole therein and provided with a mounting protrusion at an upper end thereof. The crankshaft hole runs upward through the mounting protrusion. The thrust bearing is fitted over the mounting protrusion. The crankshaft is rotatably disposed within the crankshaft hole, has a thrust part, and is formed with an oil supply passage therein. A lower end face of the thrust part is abutted against an upper end face of the thrust bearing. A cavity is defined by the mounting protrusion, the thrust bearing and the thrust part. A through hole is formed in a peripheral wall of the crankshaft for communicating the oil supply passage with the cavity.

Abstract: A controller of an electromagnetically driven reciprocating pump influences velocity of the magnetic armature by switching voltage applied to the electromagnet depending on the position of the magnetic armature, its position determined from state variables of the electromagnet. A processor calculates electrical resistance of the magnetic coil from the voltage and current measured by the measuring device, and calculates the temporal change of the linked magnetic flux in the electromagnet from the electrical voltage, the current and the resistance of the magnetic coil, and calculates the linked magnetic flux in the electromagnet from an earlier magnetic flux and from the temporal change, and determines the position of the magnetic armature from the linked magnetic flux in the electromagnet and the electrical current through the magnetic coil, and switches the voltage at the magnetic coil by the switching device depending on the position of the magnetic armature.

Abstract: A system for determining health of a component is provided. The system includes an operational parameter module associated with the component and in communication with a controller. The controller is configured to receive an operating parameter signal from the operational parameter module. The controller is configured to monitor a change of the operating parameter over a predetermined time period. The controller is configured to compare the monitored operating parameter with a first predetermined threshold. The controller is configured to determine a rate of change of the monitored operating parameter over the predetermined time period. The controller is also configured to compare the determined rate of change with a second predetermined threshold. The controller is further configured to determine the health of the component based, at least in part, on the comparisons with the first and second predetermined thresholds respectively and one or more additional parameters associated with the component.

Abstract: A sanitary check valve having an open hook hinge coupling the valve disc to the valve body. The open hook hinge comprises a pair of open hook receivers coupled to the valve body, each open hook receiver adapted to receive a respective free end of a pin which is coupled to the valve disc. The open hook hinge prevents separation of valve disc from valve body during operations while permitting thorough cleaning and sanitation of sanitary check valve.

Abstract: A variable displacement oil pump includes an adjustable member that is configured to shift according to changes in pressure inside a control oil chamber. The adjustable member has a long hole. A guide pin is disposed inside the long hole. The guide pin is fixed to either a housing or a cover of the variable displacement oil pump. The width of the long hole is larger at a part of the long hole farther away from a fixed end of the guide pin in its lengthwise direction than at a part thereof closer to the fixed end.

Abstract: A scroll compressor according to the present invention includes a casing having a hermetic inner space divided into a low pressure portion and a high pressure portion, an orbiting scroll disposed within the inner space of the casing and performing an orbiting motion, a non-orbiting scroll forming a compression chamber together with the orbiting scroll, the compression chamber having a suction chamber, an intermediate pressure chamber and a discharge chamber, a back pressure chamber assembly coupled to the non-orbiting scroll to form a back pressure chamber, a valve accommodation groove formed on at least one of the non-orbiting scroll or the back pressure chamber assembly, a bypass hole formed from the intermediate pressure chamber into the valve accommodation groove in a penetrating manner, a check valve accommodated in the valve accommodation groove and opening and closing the bypass hole according to pressure of the intermediate pressure chamber, a communication passage communicating the valve accommodatio

Abstract: A vapor compression system including a motor having a housing and a shaft having an axis, the shaft urgable into rotational movement by the motor for powering a system component. A primary bearing and a secondary bearing are positioned in the housing for rotatably supporting the shaft, the primary bearing rotatably supporting the shaft during normal system operation. A first bearing stop and a second bearing stop are positioned on opposite sides of the secondary bearing for transmitting axial forces generated along the shaft for reaction by the motor housing during abnormal system operation. At least a portion of corresponding surfaces of each of the first bearing stop and the second bearing stop facing the secondary bearing have a protective overlying layer of material applied thereto.

Abstract: A hermetic compressor is provided that may include a casing having an inner space, an orbiting scroll provided in the inner space, a non-orbiting scroll engaged with the orbiting scroll to form compression chambers, a high/low pressure dividing plate that divides the inner space into high and low pressure portions, and an overheat preventing unit coupled to a surface of the dividing plate at the high pressure portion, the overheat preventing unit having a communication hole formed through the dividing plate to communicate the high and low pressure portions, and having a valve spaced from the dividing plate by a predetermined interval to selectively open/close the communication hole according to a temperature variation of the high pressure portion, whereby transfer of a refrigerant temperature of the low pressure portion to the overheat preventing unit through the dividing plate may be prevented, and the compressor may be quickly stopped upon being overheated, thereby being protected from damage.

Abstract: This scroll compressor includes a scroll compression unit including a first fixed scroll including a first fixed base plate and a first fixed spiral wrap, an orbiting scroll arrangement (7) including a first orbiting spiral wrap (14), the first fixed spiral wrap and the first orbiting spiral wrap (14) forming a plurality of first compression chambers. The scroll compressor further includes a refrigerant suction part suitable for supplying the scroll compression unit with refrigerant to be compressed. The orbiting scroll arrangement (7) further includes a first orbiting guiding portion (21) extending from an outer end portion of the first orbiting spiral wrap (14) and configured to guide, in use, at least a part of the refrigerant supplied to the scroll compression unit towards the first compression chambers.

Abstract: A submersible pump assembly configured to manipulate the flow of fluids to achieve sufficient flow rate and fluid pressure to efficiently pump viscous or solids-laden fluid, while minimizing the risk of pump clogging and/or damage due to the solids content of the fluid. The submersible pump assembly comprising a cylindrical housing having an intake disposed at an upstream end for receiving viscous and/or solids-laden fluid and an outlet disposed at a downstream end opposite the intake for discharging the fluid to the surface. A rotating shaft extending through the cylindrical housing along a center axis of the housing and adapted to be driven by a submersible motor. A plurality of successive pumping stages disposed in a co-axial arrangement along the rotating shaft and a helical inducer coupled to the shaft between the intake and the plurality of pumping stages. The helical inducer comprising at least a single helical turn that directly converges into the plurality of pumping stages.

Abstract: A method for detecting faults or operational parameters in a pump assembly by use of a handheld communication device is described. The pump assembly includes an electric motor and a pump, wherein the pump assembly or electric motor has at least one rotating shaft The method comprises the steps of: a) measuring a sound signal emanating from the pump assembly by use of a microphone connected to or implemented in the handheld communication device, b) processing the measured sound signal, and c) recognising one or more sound emanating condition including any possible faults by way of the processed sound signal. The app automatically repeats at least steps b) and c) for a plurality of preselected frequency ranges in order to detect different fault states.

Abstract: A blower includes a blower body. The blower body includes a housing, an impeller arranged inside the housing, and a motor arranged in the housing and driving the impeller to rotate. The blower body includes an air inlet and an air outlet. The blower further includes a base and a regulating mechanism. The blower body is mounted on the base via the regulating mechanism, and the regulating mechanism includes a coupling member, a regulating knob and a resetting member. The blower body is rotatably mounted on the base via the coupling member, the regulating knob is arranged on the base and cooperates with the coupling member to limit the coupling member, and the resetting member is arranged on the base and cooperates with the regulating knob to cause the regulating knob to reset.

Abstract: A submersible well pump assembly includes a pump driven by a motor. The pump has a number of stages, each stage including a diffuser having an annular diffuser inlet with an annular outer wall. Diffuser passages lead downstream and inward from the diffuser inlet. An impeller has a circumferential outer edge adjacent the outer wall of the diffuser inlet. Notches are formed in the circumferential outer edge, defining a serrated configuration.

Abstract: A dual compressor turbocharger includes two compressors. One compressor supplies fuel pressure, and one compressor supplies air pressure. The dual compressor turbocharger includes a turbine driven by exhaust of an engine and a shaft coupled to the turbine. The first compressor is mounted on the shaft and includes a first inlet coupled to an air supply and a first outlet coupled to an air intake of the engine. The second compressor is mounted on the shaft and includes a second inlet coupled to a fuel supply and a second outlet coupled to a fuel supply rail of the engine.

Abstract: A method is provided for operating a fluid conveying device of a motor vehicle having at least one aerodynamic bearing. The method reduces the rotational speed of the aerodynamic bearing to a rest speed, wherein the rest speed is below a lifting speed, in which case the bearing builds up an air film for bearing free of mixed friction, and wherein the rest speed is above a lowering speed, in which case the bearing has reduced the air film such that mixed friction occurs. The fluid conveying device is operated at the rest speed.

Abstract: A seal mechanism (20A) is disposed on an outer circumferential side of a rotor (2) extending along an axis (O) to perform sealing between the seal mechanism and the outer circumferential surface (2a) of the rotor (2). The seal mechanism (20A) includes a main body portion (21A) having a cylindrical shape, and into which the rotor (2) is inserted; and a plurality of hole portions (22) formed on an inner circumferential surface of the main body portion (21A) to face an outer circumferential surface of the rotor (2). The hole portions (22) are within a range in which a hole depth h is equal to or smaller than a hole diameter d.

Abstract: A submersible well pump assembly has a motor that rotates a drive shaft within the pump. The pump has a number of pump stages, each stage having a diffuser and an impeller. A bushing is fixed for non-rotation within the diffuser. A thrust runner sleeve mounted to the drive shaft has an outer diameter surface in sliding rotating engagement with an inner diameter surface of the bushing. At least one seal ring is mounted to the sleeve in sealing engagement with the drive shaft to block the entry of well fluid particulates between the sleeve and the drive shaft.

Abstract: A method of manufacturing a component of a turbomachine by powder metal hot isostatic pressing is disclosed, which uses a container defining outside surfaces of the component. A metal insert is located inside the container before filling the container with metal powder, and the insert is left in the component after the end of its manufacturing. In an embodiment, a metal core is located inside the container before filling the container with metal powder, and the core is removed from the component before the end of its manufacturing. In this way, net shape surfaces may be obtained without manufacturing trials.

Abstract: A combined fan for cooling a heat source includes a hub and multiple blades. The hub has a first side and a second side opposite to each other. The blades are distributed along an outer circumferential surface of the hub, and each of the blades includes a first part extending from the hub and a second part connected to the first part. Each of the second parts protrudes beyond the first side or the second side, and each of the second parts is formed by multiple strip structures. Therefore, each of the strip structures can be closer to a surface of the heat source to dissipate the heat more effectively.

Abstract: Profiled blade for a fan wheel, with a profile body produced from at least one curved metal strip, whereby adjacent end zones of the at least one metal strip are connected to each other in an adhesively bonded and/or form-fit manner wherein a second end zone at a distance from a second end zone edge is equipped with at least one embossed area for forming a contact surface enabling a first end zone to, at least in sections, be brought into contact with it.

Abstract: A compressor rotor, such as a fan, for a gas turbine engine is described which includes alternating at least first and second blade types. The leading edge of the second blade types includes a leading edge tip cutback extending to the blade tip thereof. The leading edge tip cutback of the second blade type defines a chord length at the blade tip of the second blade types that is less than that of the first blades types. The first and second blade types generate different shock patterns when the fan or compressor rotor operates in supersonic flow regimes.

Abstract: The turbomachine assembly includes a first turbomachine having an inlet, an outlet and a rotary shaft, a second turbomachine having an inlet, an outlet and a rotary shaft, a transfer duct fluidly connecting the outlet of the first turbomachine to the inlet of the second turbomachine, and a casing housing the turbomachines and the transfer duct; the turbomachines are located adjacent to each other so that the outlet of the second turbomachine is close to the outlet of the first turbomachine and the inlet of the second turbomachine is remote from the outlet of the first turbomachine; the outlet of the second turbomachine has an end portion shaped like a cochlea (i.e. a spiral duct); the transfer duct has an annular shape, and surrounds the end portion of the outlet of the second turbomachine.

Abstract: A gas turbine engine casing apparatus includes annular first and second annular cases connected by a spigot joint. The spigot joint includes an annular projection of the first annular case fitted into an annular recess of the second annular case. A plurality of circumferentially spaced apart scallops are formed on one of surfaces of the annular projection or of the annular recess, and are located in selective circumferential locations adjacent respective enhanced stiff areas of the first and second annular cases.

Abstract: An engine case may include a first half and a second half. The first half may have a semiannular geometry with a first flange located at a circumferential edge of the first half. The second half may also have a semiannular geometry. The second half may further include a flange located at a circumferential edge of the first half. The second flange may be aligned with the first flange and mechanically coupled to the first flange. The first flange and the second flange may be configured to substantially align with an engine mounting point. The engine case may also have an annular geometry.

Abstract: A turbine-engine compressor, in particular for an aircraft turboprop engine or turbojet engine, comprising an annular casing and at least one annular row of variable-pitch blades, each blade comprising a radially external end comprising a pivot mounted in an orifice in the casing and connected by a link to a control ring able to pivot axially about its axis with respect to the casing. Each link comprises a first end fixed to the pivot of the blade and a second end mounted so as to be able to pivot on the control ring. The pivot axes of first and second links on the control ring are offset from each other along the axis of the compressor, the second end of the second link being mounted on the ring by a connecting member, allowing a connection of the sliding or annular linear pivot type.

Abstract: A cooling or heating fluid circulation system of the double-supported centrifugal pump, comprises a left shaft sleeve and a right shaft sleeve which are sleeved on the periphery of the pump shaft, a first left sealing gland and a second left sealing gland are sleeved on the periphery of the left shaft sleeve via a left outside stationary sealing ring, a left outside rotating sealing ring and a left inside stationary sealing ring respectively, a first right sealing gland and a second right sealing gland are sleeved on the periphery of the right shaft sleeve via a right outside stationary sealing ring, a right outside rotating sealing ring and a right inside stationary sealing ring respectively; a heat exchange fluid circulation channel, which is formed among the first left sealing gland, the second left sealing gland, the left shaft sleeve, the pump shaft, the right shaft sleeve, the first right sealing gland and the second right sealing gland, is connected with an external heat exchanger via an external chann

Abstract: A cooling or heating fluid circulation system of a cantilevered centrifugal pump, comprises a pump shaft, one end of which is connected with a vane wheel, a shaft sleeve sleeved on the periphery of the pump shaft, a left sealing gland and a right sealing gland, which are sleeved on the periphery of the shaft sleeve, are connected in sequence from one side of the vane wheel along the axial direction of the shaft sleeve; the gap between the left sealing gland and the said shaft sleeve is arranged with an inside rotating sealing ring fixed with the shaft sleeve and an inside stationary sealing ring fixed with the left sealing gland, an outside rotating sealing ring fixed with the shaft sleeve and an outside stationary sealing ring fixed with the right sealing gland are arranged in the gap between the right sealing gland and the shaft sleeve and away from the left sealing gland; a flow-restricted ring is arranged between the inner peripheral surface of the right sealing gland and the shaft sleeve; and a heat exch

Abstract: A food cooling assembly includes a base has a top side, a bottom side and an outer perimeter edge. A mount is attached to and extends upwardly from the base. A fan is attached to the mount such that the fan is positioned over and directed downwardly toward the base. An actuator is mounted on the mount and is in electrically coupled to the fan. The actuator is actuated to an on position to turn on the fan or an off position to turn off the fan. A power supply is in electrical communication with the actuator and the fan to supply electrical power to the fan when the actuator is placed in the on position. The fan blows air downwardly on food positioned below the fan to cool the food.

Abstract: A fan assembly system includes two or more circular fans, each fan situated in a round fan assembly, where each fan can be situated in the round fan assembly in any orientation. The system also includes a concentrically symmetric connector for each circular fan, located in a center of each circular fan. The system also includes a latching mechanism for each circular fan, where the latching mechanism is wholly contained within a swept area of a fan blade of the circular fan. The circular fans are arranged in a staggered arrangement, and the staggered arrangement of circular fans increases a number of circular fans that can be placed in the fan assembly system compared to a non-staggered arrangement.

Abstract: Disclosed is a flow-directing motor mount for a motor mounted within the flow stream of a moving air. A flow-directing motor mount is described. Embodiments of the flow-directing motor mount cause a change in the direction of flow of a air stream constrained by a air intake cone or baffle and flowing through a HVAC device, such as a fan of an air-handler assembly. The change in direction of flow creates an angular momentum in the air stream in the direction of rotation of a fan, increasing the overall operating efficiency of the HVAC device. By increasing the operating efficiency, the air resistance created by the flow-directing motor mount supports coupling a motor to the HVAC device is offset, enabling the HVAC device to operate at a higher efficiency.

Abstract: A climate-control system may include a compressor and a control module. The compressor includes a motor driving a compression mechanism to compress a working fluid. The control module is in communication with the motor and may be configured to determine a balance speed of the motor at which a forward-rotational inertial force of the compression mechanism is equal to a backward-rotational gas force on the compression mechanism. The control module may be configured to adjust a running speed of the motor to the balance speed after receipt of a compressor-shutdown-command and before shutting down the compressor.

Abstract: Provided is a portable power working machine in which suction of clothing to a safety guard can be reliably prevented and the amount of a portion protruding laterally from one side surface portion of a fan case can be reduced so as to enable a required air blowing performance to be obtained without causing an increase in size or weight or deterioration of the operability thereof. A suction port for inhaling air is provided on one side surface portion of a fan case of an air blower, and a safety guard is provided in the suction port. Further, the one side surface portion of the fan case has attached thereto a block prevention guard that has a top surface portion with a top surface opening facing the suction port, three leg portions for allowing the top surface opening to face the suction port with a predetermined distance therebetween, and a lattice provided in the top surface opening.

Abstract: A diffuser extension sleeve 40 includes: a fixer 41 fixed to an upper portion of a diffuser in which an edge of an inlet mixer 25 is inserted, the inlet mixer 25 guiding circulating water, which is transported from a recirculating pump by pressure, downward along an inner surface of a reactor pressure vessel; a spacer 42 having a lower portion inserted in a gap defined by an outer surface 25a of the inlet mixer and an inner surface 26a of the diffuser; and a support 43 supporting the spacer 42 from the fixer 41 side and guiding movement of the spacer 42 in a longitudinal direction of the inlet mixer 25.

Abstract: A fluid system for a machine that includes a linkage. The fluid system includes an actuator, an accumulator, a pilot circuit, and a pressure reducing valve. The actuator is configured to manipulate the linkage. The accumulator is configured to store a fluid discharged by the actuator under pressure. The pilot circuit is fluidly coupled to the accumulator and is configured to receive the fluid from the accumulator. Further, the pressure reducing valve is positioned between the accumulator and the pilot circuit to regulate the pressure of the fluid delivered to the pilot circuit from the accumulator.

Abstract: An apparatus includes a drive mechanism, a first cylinder comprising a first piston coupled to the drive mechanism, and a second cylinder comprising a second piston. The first cylinder includes a first fluid reservoir and a second fluid reservoir, with the first piston disposed between the first fluid reservoir and the second fluid reservoir. The second cylinder includes a third fluid reservoir and a fourth fluid reservoir, with the second piston disposed between the third fluid reservoir and the fourth fluid reservoir. The apparatus further includes a first fluid line coupling the first fluid reservoir to the fourth fluid reservoir, and a second fluid line coupling the second fluid reservoir to the third fluid reservoir. The first piston comprises a threaded portion disposed in a threaded aperture of the first cylinder.

Abstract: An agricultural system for hydraulic flow control having an adjustable hydraulic fluid valve arranged between a hydraulic reservoir and a hydraulic consumer, pressure is measured at the reservoir-facing side and at the consumer-facing side of the valve, from which the fluid flow through the valve can be determined. The valve can then be easily controlled to provide a desired fluid flow level, regardless of the type of hydraulic circuit used.

Abstract: A travel control device is provided with hydraulic pumps of a variable capacity type that are driven by an engine; hydraulic motors that are driven by discharged oil from the hydraulic pumps; traveling devices that are rotation-driven by the hydraulic motors; a travel operation lever that is operated so as to instruct a traveling operation; a first control valve for generating a charged hydraulic pressure by adjusting the discharged oil from a charge pump and a second control valve for generating a capacity control hydraulic pressure in accordance with the operation of the travel operation lever. The first control valve is designed to pressure-adjust and generate a charged hydraulic pressure in accordance with the rotation speed of the engine, and the hydraulic pump is subjected to a variable capacity control process by a capacity control hydraulic pressure that is pressure-adjusted and generated by the second control valve.

Abstract: A jet pipe arrangement for a servo valve, the jet pipe arrangement including a jet pipe, at least two receivers in operable communication with the jet pipe. The jet pip arrangement further includes an electromagnet in direct magnetic communication with the jet pipe such that, in use, the jet pipe is movable in response to changes in a magnetic field created by the electromagnet to distribute flow from the jet pipe asymmetrically between the at least two receivers.

Abstract: A proportional pressure controller includes a body having inlet, outlet, and exhaust ports. A fill valve communicates with pressurized fluid in the inlet port. A dump valve communicates with pressurized fluid from the fill valve. An inlet poppet valve opens by pressurized fluid through the fill valve. An exhaust poppet valve when closed isolates pressurized fluid from the exhaust port. An outlet flow passage communicates with pressurized fluid when the inlet poppet valve is open, and communicates with the outlet port and an exhaust/outlet common passage. An isolation valve assembly selectively isolates fluid flow to and from the inlet port or the exhaust port to achieve a zero pressure condition.

Abstract: The following description pertains to flexure structures, apparatuses comprising flexure structures, systems comprising flexure structures, methods of using flexure structures, methods of using apparatuses comprising flexure structures, and methods of using systems comprising flexure structures. The following description also pertains to methods, systems, and apparatuses for linear to rotary motion converters.

Abstract: A two-stage, fully self-retracting, telescopic fluid actuator suitable for high speed ejection applications comprises a detent 38, 64, 26, which locks a cylinder 6 in an extended position for extension of a piston 3 therefrom. The detent is released by retraction of the piston into the cylinder again, e.g. unspring bias, so that the actuator is fully self-retracting. A locking ball 38 of the detent also serves to latch the piston and cylinder to each other for the first stage of the actuator extension. In an alternative embodiment, cam means (80, 117 FIGS. 10, 11 and 13) and plungers (90, FIGS. 10, 12, 13 and 15) perform the detent and latching functions.

Abstract: A ram air turbine actuator release device to release a ram air turbine actuator includes a lock bolt releasably engaged to the ram air turbine actuator, a toggle comprising a toggle roller to engage the lock bolt, and a toggle pivot to couple the toggle to the ram air turbine actuator, a hydraulic toggle actuator, including a piston defining a first hydraulic chamber and a second hydraulic chamber, a solenoid valve in fluid communication with the first hydraulic chamber, and a plunger coupled to the piston, wherein a pressure differential between the first hydraulic chamber and the second hydraulic chamber displaces the plunger to rotate the toggle to disengage the toggle roller from the lock bolt.

Abstract: This invention relates to a device for the recuperation of hydraulic energy in a working machine with at least one differential cylinder and to a corresponding working machine.