Abstract: An electric power control apparatus for a vehicle includes a first determination section determining an activation of a jump start, a second determination section determining a connection of an external power source having a higher voltage than a battery voltage of the vehicle, a third determination section determining whether the engine switches to an engine start completed state, a keep section keeping an electric power generation unit of the vehicle in an electric power generation deactivated state when determining that the engine switches to the engine start completed state, a fourth determination section determining a disconnection of the external power source, and an instruction section instructing an immediate activation of the electric power generation to the electric power generation unit when determining the disconnection of the external power source.

Abstract: A magnetic field sensor for detecting motion of an object includes threshold generation circuitry and processing. Magnetic field sensing elements are configured to generate a magnetic field signal in response to a magnetic field associated with the object. A motion detector responsive to the magnetic field signal and to a threshold signal is configured to generate a detector output signal having edges occurring in response to a comparison of the magnetic field signal and the threshold signal. A speed detector responsive to the detector output signal generates a speed signal indicative of a speed of motion of the object. A threshold generator responsive to the speed signal generates the threshold signal having a level that varies in response to the speed signal.

Abstract: The subject matter disclosed herein relates to a system and method for monitoring and controlling a combustion engine. In one embodiment, a system includes a controller configured to control operations of a combustion engine, to receive a signal from at least one knock sensor coupled to the combustion engine, to determine a knock margin value from the signal, and to estimate a fuel quality value of a fuel injected into the combustion engine based at least on a comparison between the knock margin value and a laboratory performance data set.

Abstract: A waterwheel generator providing a high efficiency rotational movement and floating on the surface of the water to generate power according to a water flow. A buoyant installation frame is filled with a predetermined amount of buoyant medium. A waterwheel rotational blade unit includes a plurality of rotational blades attached around a rotational shaft in a waterwheel receiving hole and immersed in a predetermined depth of water. The waterwheel receiving hole is formed at one side of the buoyant installation frame and exposed to water having a predetermined flowing speed. Height adjustment means is arranged at both ends of the rotational shaft to adjusts its height. Wire hooking means is configured around the outer periphery of the buoyant installation frame to prevent the buoyant installation frame from being carried away by the flow of water. A generator is provided at one side of the rotational shaft.

Abstract: A device to exploit the energy of a fluid flowing through a piping, without producing pollution and even in the absence of heads and/or penstocks including, for instance, a drinkable water aqueduct or an oil pipeline. Such device comprises a stub (1), interposed between two sections (3, 4) of a piping and free to rotate with respect to them, and a cylindrical counter-rotor (8). The latter is driven into rotation by said stub (1) which transforms the energy of the fluid because means (2) stand on its inner surface to interact with the fluid stream and drive it into rotation. The speed of rotation of the stub (1) and of the counter-rotor can be advantageously varied by way of pulleys, belts, and an automatic variator/change gear/turn reverser assisted by a specially designed software so as to control the interaction of said means (2) with the fluid and to optimize the generation of mechanic and electric energy.

Abstract: Electricity generator including: a membrane undulating in a longitudinal direction; at least one electricity generation module carried by the membrane, each at least one module including: a fixed frame; a movable frame; a coil and at least one permanent magnet carried by one of the frames in order to generate a voltage when the membrane undulates. The fixed frames are connected to this membrane and the movable frames are disposed at a distance from a neutral axis of the membrane so that, when the membrane undulates in its longitudinal direction, there is, for each electricity generation module, a rectilinear sliding movement of the movable frame with respect to the fixed frame so as to generate electrical voltages in the coils of the modules.

Abstract: A closed-loop hydraulic apparatus 200 for converting wave energy comprises a pump 201 for pumping a fluid through the apparatus 200. The pump 201 includes a body 202 defining a chamber 203, and a piston 207 that partitions the chamber 203 into a working side 208 and a blind side 209. A buoyant actuator is connected to the piston 207. An inlet 64 is connected to the working side 208 of the chamber 203 so that the fluid is able to flow from the inlet 64 and into the working side 208 of the chamber 203. An outlet 63 is connected to the working side 208 of the chamber 203 so that the fluid is able to flow from the working side 208 of the chamber 203 to the outlet 63. A hydraulic controller 102 is operable to control the pump 201 by controlling the pressure of the fluid at the inlet 64 and the outlet 63 so as to optimise the output of the pump 201 in response to tidal variations and/or sea state. The pressure of the fluid at the inlet 64 and the outlet 63 is controlled in accordance with a control algorithm.

Abstract: An apparatus has a base and a flow path assembly movably supported by the base and defining a serpentine flow path having an entry opening and an exit opening. An actuator is coupled with the flow path assembly and the base and is configured to rotate the flow path assembly between a vertical and an angled position relative to the base. The flow path is configured to allow a column of a first fluid with a first density to be trapped between columns of a second fluid with a second density higher than the first density. The first fluid column has a first height and the second fluid columns have second heights, so that a volume of the first fluid and a volume of the second fluid flow through the flow path and through the exit opening as the flow path assembly is rotated between the vertical and angled positions.

Abstract: A power generator may generate power using buoyancy having a fluid column contained by a tank having a sealable drain and a piston having a substantially hollow interior capable of being filled with a fluid. The piston has a sealable outlet, a vent, an inlet, and a lateral cross-section that is smaller than a lateral cross-section of the tank. A rod is connected to the piston and a power generator is connected to the rod. The piston operates from a first position near the top of the fluid column to a second position near the bottom of the fluid column. The piston moves from the first position to the second position as fluid is added to the inlet. The piston moves from the second position to the first position as the fluid is drained from the outlet.

Abstract: An efficient low flow, low head, undershot double acute angle turbine where the flow strikes the blades at 90° without the Betz limit. Blades are set at an acute angle to the axle and the turbine is positioned in the flow at the compliment of the blade angle. There is no lag on downstream blades. There is no turbulence when the idle blade enters the flow. Active blades exhaust to the next blade to extract more energy. Simple adjustments set the flow to the blade tip that will produce the highest rotational speed. It is portable. It can be scaled up for larger applications by adding blades to the axle or using longer blades. It can be made from repurposed materials using hand tools. Hydro installations include in a sluice and on a floating barge. It has been tested successfully in flowing water and wind.

Abstract: Horizontal axis W/T of low wind speeds of propeller type, bearing a main rotor of three blades (1), while in the space between two successive blades (1) and diametrically opposite to the third, an additional 4th blade (2) also of propeller type but of significantly longer length, is interposed. This additional blade (2) is not permanently coupled but selectively engaged in the system of the W/T at low wind speeds, contributing to the startup and enhancing the energy production. The blade (2) bears diametrically opposite a counterweight (15) to balance the forces developed, and rotates in a plane parallel to the main rotor. The coupling of the blade (2) is preferably made at the stand-by state or at low wind speed operation of the W/T, while the uncoupling will be performed during operating state and at the rated power. The blade (2) after uncoupling, gets in vertical position and remains immobilized attached to the tower (3).

Abstract: A rotor blade element, in particular produced by a process according to claim 10, in particular a rotor blade edge for a wind turbine, with a base comprising a fiber material saturated with curable resin and with a surface foil, with, arranged between base and surface foil, a bonding layer. The invention proposes that the surface foil comprises polyethylene with ultra-high molecular weight and that the bonding layer comprises a first rubber layer and a second rubber layer, where the first rubber layer is allocated to the surface foil and the second rubber layer is allocated to the base.

Abstract: A wind turbine system to provide electrical power in areas not connected to the electrical power grid. The wind turbine system includes a frame and a rotatable shaft supported by the frame. A ring and idler gear assembly is coupled to the rotatable shaft. An upper rotor assembly is coupled to the rotatable shaft. The upper rotor assembly is configured to rotate in a first direction and thereby to rotate the rotatable shaft in a first direction. A lower rotor assembly is coupled to the ring and idler gear assembly. The lower rotor assembly is configured to rotate in a second direction which is opposite of the first direction and thereby to rotate the rotatable shaft in the first direction via the ring and idler gear assembly.

Abstract: The invention provides a self directed vertical axis wind turbine which produces optimum power relative to wind speed, resulting in high torque output. During operation, all the blades of the turbine are in a continuous movement of changing their angles from fully open to fully overlap. At the heart of this concept is a frame circumventing the rotor, formed of a pair of top coaxial rings superimposed over bottom coaxial rings defining a central vertical axis distant from the shaft axis, each pair of top and bottom rings are freely movable by being mounted on bushings to the central shaft by radially disposed beams and vertically disposed mounting members fixedly connecting the top and bottom rings. Each Blade's angle relative to incoming wind is controlled by these pair of rings which are controlled by the pair of weathervanes rotating on the central turbine shaft axis.

Abstract: The present invention discloses a wind power generation tower. The wind power generation tower, according to one embodiment of the present invention, can implement wind power generation by accelerating wind speed even for low speed wind and simultaneously increasing the utilization efficiency of the wind which rotates blades, thereby improving overall power generation efficiency. In addition, the wind power generation tower, according to the one embodiment of the present invention, can increase the intensity of the wind by a Venturi effect and simultaneously increase the drop in pressure of the wind escaping the wind power generation tower by using the vortex generated at the rear surface of the wind power generation tower in a cylindrical shape, thereby improving the rotation of the blades provided to the inside of the wind power generation tower so as to enable faster rotation of the blades.

Abstract: A power generation apparatus and method comprises at least one gyroglider rotary wing flying at an altitude above the nap of the earth. A strong and flexible tether, connected to the gyroglider frame is pulled with a force generated by the rotary wing. The force is transmitted to a ground station that converts the comparatively linear motion of the tether being pulled upward with a lifting force. The linear motion is transferred to a rotary motion at the ground station to rotate an electrical generator. The tether is retrieved and re-coiled about a drum by controlling the gyroglider to fly down at a speed and lift force that permit recovery of the gyroglider at a substantially reduced amount of retrieval force compared to the lifting force during payout of the tether. Thus, the net difference in force results in a net gain of energy.

Abstract: A power generation apparatus and method comprises at least one gyroglider rotary wing flying at an altitude above the nap of the earth. A strong and flexible tether, connected to the gyroglider frame is pulled with a force generated by the rotary wing. The force is transmitted to a ground station that converts the comparatively linear motion of the tether being pulled upward with a lifting force. The linear motion is transferred to a rotary motion at the ground station to rotate an electrical generator. The tether is retrieved and re-coiled about a drum by controlling the gyroglider to fly down at a speed and lift force that permit recovery of the gyroglider at a substantially reduced amount of retrieval force compared to the lifting force during payout of the tether. Thus, the net difference in force results in a net gain of energy.

Abstract: A power generation apparatus and method comprises at least one gyroglider rotary wing flying at an altitude above the nap of the earth. A strong and flexible tether, connected to the gyroglider frame is pulled with a force generated by the rotary wing. The force is transmitted to a ground station that converts the comparatively linear motion of the tether being pulled upward with a lifting force. The linear motion is transferred to a rotary motion at the ground station to rotate an electrical generator. The tether is retrieved and re-coiled about a drum by controlling the gyroglider to fly down at a speed and lift force that permit recovery of the gyroglider at a substantially reduced amount of retrieval force compared to the lifting force during payout of the tether. Thus, the net difference in force results in a net gain of energy.

Abstract: A power generation apparatus and method comprises at least one gyroglider rotary wing flying at an altitude above the nap of the earth. A strong and flexible tether, connected to the gyroglider frame is pulled with a force generated by the rotary wing. The force is transmitted to a ground station that converts the comparatively linear motion of the tether being pulled upward with a lifting force. The linear motion is transferred to a rotary motion at the ground station to rotate an electrical generator. The tether is retrieved and re-coiled about a drum by controlling the gyroglider to fly down at a speed and lift force that permit recovery of the gyroglider at a substantially reduced amount of retrieval force compared to the lifting force during payout of the tether. Thus, the net difference in force results in a net gain of energy.

Abstract: To efficiently nm a wind turbine in varying wind speeds, the wind turbine may be configured to switch between two different electrical configurations that offer different efficiencies depending on wind speed. For example, a star configuration may be preferred during low wind speeds while a delta configuration is preferred for high wind speeds. Before switching, the power output by the turbine's generator may be driven to zero. Doing so, however, removes load from the rotor blades which cause the rotor speed to increase. Instead, the rotor speed may be controlled such that the speed stays at or above the speed of the rotor immediately before the generator power is ramped down. Maintaining rotor speed at or slightly above the current speed while switching between electrical configurations may mitigate the torque change experienced by the turbine and reduce the likelihood of structural failure.

Abstract: The present wind turbine blade comprises an airfoil structure comprising an airfoil shape, an internal support structure arranged spanwise along the length of the blade within the airfoil structure, and an elastic connection joining a portion of an inner surface of the airfoil structure with a portion of the internal support structure. The airfoil structure can be passively pitched relative to the internal support structure according to aerodynamic pressure distribution at different blade locations.

Abstract: The application provides a number of embodiments for an energy recovery device incorporating a SMA core or material. This application solves the problem of pressure pulsing caused by a volume reduction which is a result of the contraction of SMA core and its coupled piston head within a closed immersed chamber. The application disclosed provides a number of effective solutions of removing this issue with minimal additional components.

Abstract: A slipper retainer of a hydraulic unit having a circular body having a back surface and an outer edge, the circular body defining a diameter of about 2.240 inches (5.629 cm), a central aperture through a center of the circular body, the circular body having a curved surface defining an edge of the central aperture, wherein the curved surface is defined by a sphere that is centered at a point located a distance of about 0.209 inches (0.531 cm) from the back surface of the body, and a plurality of slipper apertures located between the curved surface of the circular body and the outer edge of the circular body, wherein each slipper aperture of the plurality of slipper apertures has a diameter of about 0.464 inches (1.179 cm).

Abstract: A slipper retainer ball of a hydraulic unit having an aperture passing through a body, the body having a flat bottom surface, a flat top surface, an external curved surface, and an interior profiled surface that extends in an axial direction from the bottom surface to the top surface. The interior profiled surface includes a first surface extending parallel to the axis from the bottom surface in the axial direction, a second surface extending perpendicular to the axis from the first surface and outward toward the external curved surface, a third surface extending from the second surface axially at a first angle, a fourth surface extending from the third surface in the axial direction, and a fifth surface extending from the fourth surface to the top surface at a second angle that is skew from the axis. The axial thickness of the body is about 0.471 inches.

Abstract: Systems and methods are provided for delivering fluid under pressure, the fluid feed being independently controlled.

Abstract: A double-headed piston type swash plate compressor has a first abutting portion provided between a first housing member and a first cylinder block and a second abutting portion provided between a second housing member and a second cylinder block. The first abutting portion is located inside a first circumcircle of the group of first cylinder bores and causes the first housing member and the first cylinder block to make metal-to-metal contact. The second abutting portion is located inside a second circumcircle of the group of second cylinder bores and causes the second housing member and the second cylinder block to make metal-to-metal contact.

Abstract: The present utility model application refers to a new constructive arrangement introduced in acoustic filter of hermetic compressor, and more particularly, a new constructive arrangement that optimizes the suction flow of the acoustic filter, which is normally arranged within the hermetic housing of the hermetic compressor. The suction acoustic filter (1) is composed by at least one outlet pipe (2), outlet pipe (2) comprising at least two independent suction outlets (21). Each independent suction outlet (21) extending along outlet pipe (2).

Abstract: An inflator having an enhanced cooling effect on its motor is disclosed, which includes a box composed a cover and a base, and a compressor unit installed in the box. The box is provided with airflow-guiding members cooperated with a cooling fan fitted at a rotating shaft of a motor used in the compressor unit to allow outside air to be quickly drawn into the interior of the box. Thereafter, the airflow can be guided by the airflow-guiding members to enter the interior of the motor to dissipate the heat generated by the rotor assembly in the motor and finally go out of the box. Therefore, heat is not easy to accumulate in the motor, so that maximum power output of the motor can be achieved, and the performance and service life of the motor can be increased.

Abstract: A compressor includes a plurality of gas bearing conduits and a plurality of gas bearing control valves. Each gas bearing control valve of the plurality of gas bearing control valves is coupled to a respective one of the plurality of gas bearing conduits. The gas bearing control valves are configured for permitting fluid flow through the gas bearing conduits when a piston of the compressor is positioned adjacent the gas bearing conduits in a chamber of the compressor.

Abstract: The present invention includes an electrochemical actuator pump and method of making the same, comprising a membrane electrode assembly comprising an ion exchange membrane, a first and a second catalyzed porous electrode in contact with opposing sides of the ion exchange membrane; a first gas chamber in fluid communication with the first electrode, and a second gas chamber in fluid communication with the second electrode; and a controller for controllably reversing the polarity of a voltage source electrically coupled to the first and second electrodes, wherein the controller causes a first polarity at the first electrode to function as an anode and the second electrode to function as a cathode, wherein the first polarity simultaneously decreases the hydrogen gas pressure in the first hydrogen gas chamber and increases the hydrogen gas pressure in the second hydrogen gas chamber, with additional embodiment using MOF or Ni—H batteries.

Abstract: A liquid transporting apparatus includes a pump unit that transports a liquid, a battery housing unit that houses a battery supplying power for driving the pump unit; a driving unit that drives the pump, a control unit that controls the driving unit, and a temperature measuring unit that measures a temperature. The control unit controls driving of the pump unit by a first mode in which the pump unit is driven by a predetermined driving amount in unit time and a second mode in which the pump is driven by a driving amount that is smaller than the predetermined driving amount in unit time that is shorter than the unit time described above when the temperature measured by the temperature measuring unit is lower than a predetermined value.

Abstract: A system for delivering cryogenic fuels to an engine uses a plurality of cryogenic pumps operating in offset phases to deliver high pressure fuel with a minimum of pressure ripple. The cryogenic pumps use engine oil and a hydraulic pump for actuation via electrohydraulic valves. A charge pump maintains pressure in the feed line so that the cryogenic pumps can be located away from the cryogenic fuel tank. A control strategy for the hydraulic pumps allows output pressure and flow rate to be closely controlled and regulated.

Abstract: A method of monitoring and assessing valve conditions in a pump includes collecting data regarding timing of a pump piston and vibration of a pump fluid end, processing the data to form a filtered and transformed vibration signal, banding the vibration signal into high energy bands and low energy bands, and comparing a ratio of at least one high energy band to at least one low energy band of the vibration signal with at least one constant to determine valve condition.

Abstract: A sleeping system is provided, including an air bladder and a diaphragm pump. The diaphragm pump communicates with the air bladder. The diaphragm pump includes a base, a first inlet, a first outlet, a first noise-eliminating foam, a pump body and a cover. The first inlet is formed on the base. The first outlet is formed on the base. The first noise-eliminating foam is disposed in the base. The cover is connected to the base and covers the pump body, wherein air flow passes through the first inlet into the base and travels through the pump body and the first noise-eliminating foam, and leaves the diaphragm pump through the first outlet to be infused into the air bladder.

Abstract: A high pressure pump of a common rail pump system includes a pump body having a cylinder with a piston bore and a piston reciprocally driven in the piston bore to pressurize fuel in the cylinder. The piston has an inner end located in the piston bore and an outer end outside the piston bore. A bellow having a first opening and a second opening is arranged between the piston and the pump body, wherein the piston extends through the first and second openings, wherein the bellow is connected to the pump body such that the first opening is sealed on the pump body and wherein the bellow is connected to the outer end of the piston such that the second opening is sealed on the piston. This arrangement prevents mixing of engine oil and fuel. The bellow may be connected to a drainage line via a one-way valve.

Abstract: A housing for use in high-pressure fluid applications, and in particular a structure for the fluid end of a multi-cylinder reciprocating pump used in oilfield, wherein the structure includes features such as ruled surfaces and increased sidewall thickness to improve resistance to stress applied and has an extended the service life.

Abstract: Various examples are provided for progressive cavity pumps and motors. In one example, among others, a progressive cavity pump (or motor) includes a stator having a hyperboloidal internal bore including a plurality of spiral lobes, and a rotor comprising a plurality of spiral lobes positioned within the hyperboloidal internal bore of the stator. A longitudinal axis of the rotor is non-planar, non-parallel, and non-intersecting with a longitudinal axis of the stator. The stator can include an elastomeric material coating the hyperboloidal internal bore of the stator, which can reduce the effect of friction and abrasion during operation. The elastomeric material can include fluoro-based elastomers, other elastomeric materials or combinations thereof. For example, a fluoromonomer such as tetrafluoroethylene (TFE) or a fluoropolymer such as polytetrafluoroethylene (PTFE) can be used. The rotor can be configured to allow for displacement to adjust an interference fit between the rotor and the stator.

Abstract: The vane pump includes a housing enclosing the rotor and vanes, the housing including an inner surface defined by a core profile to cause the vanes to extend and retract radially to provide a predetermined vane displacement with rotation of the vanes. The core profile includes an inlet profile portion and an outlet profile portion, wherein the core profile includes a vane radius modifying portion defined between the inlet profile portion and the outlet profile portion such that a radial extension of a vane that is guided along the inner surface will change when transiting the vane radius modifying portion.

Abstract: A scroll compressor includes fixed and movable scrolls and a crank shaft coupled to the movable scroll. The fixed and movable wraps are engaged to form a compression chamber. A refrigerant compressed in the compression chamber is discharged from a discharge port open at a central portion of the fixed end plate. The compression chamber is divided into first and second compression chambers facing outer and inner circumferential surfaces of the movable wrap. One of the end plates is provided with a communication groove recessed at a portion near a wrapping start position of the wrap. The communication groove connects the first compression chamber and the discharge port before the outer circumferential surface of the movable wrap, which is eccentrically rotating while sliding on an inner circumferential surface of the fixed wrap, separates from the inner circumferential surface of the fixed wrap.

Abstract: Rotors for a rotary screw compressor having geometries that increase the efficiency of the compression process. The thermodynamic behavior of the rotors may be improved through an increase in the number of male and female lobes of the rotors and/or by an increased wrap angle, such as, for example, using wrap angles that exceed 360 degrees. By increasing the number of lobes, the rotors may have improved resistance to bending of the rotors that may otherwise occur when the temperature of the rotors is elevated and/or the rotor is utilized in relatively high pressure compression applications. The improved resistance to bending may allow the rotors to retain the relatively small size of the work spaces between intermeshed lobes of the rotors in which captured working fluid is being compressed.

Abstract: A negative pressure pump includes an electrically insulative casing an electrically conductive rotary shaft and an electrically conductive vane. The casing is formed in a tubular shape, an axial direction one end of which is closed off by a cap body. The rotary shaft is disposed in the casing, is mechanically and electrically connected to an earthed power source, and is rotated by power being transmitted from the power source. The vane is disposed in the casing, is supported at the rotary shaft to freely reciprocate in a direction orthogonal to the rotary shaft, and is electrically connected to the power source via the rotary shaft. The vane rotates integrally with the rotary shaft, and end portions of the vane slide over an inner wall face of the casing. The vane divides the interior of the casing into a plurality of spaces and generates negative pressure.

Abstract: A scroll compressor includes a casing, a compression mechanism accommodated within the casing, a motor arranged to rotatably drive the crankshaft, an oil feed pump arranged to feed lubricating oil upward, a lower oil reservoir disposed in a space below the oil feed pump to hold lubricating oil, an oil feed path and an oil retention space. The compression mechanism has a stationary scroll and a moveable scroll forming a compression chamber. The crankshaft is linked to the moveable scroll. The oil feed passage is formed so as to extend in an axial direction within an interior of the crankshaft and communicates at a lower end with a discharge side of the oil feed pump. The oil retention space is formed so as to extend in an axial direction within the interior of the crankshaft separately from the oil feed passage and communicates with the oil feed passage.

Abstract: A centrifugal pump (10) includes a housing (26), an impeller (28) that is rotatably disposed inside the housing (26), a shaft (62) that has spherical surface-shaped shaft ends (66) at both ends in an axial direction, and bearings (70) that have spherical surface-shaped bearing surfaces (73) respectively and pivotally supporting the shaft ends (66). In at least one of the bearings (70) disposed on both sides of the shaft (62) in the axial direction, a ratio of a radius of curvature of the shaft end (66) with respect to a radius of curvature of the bearing surface (73) of the bearing (70) is equal to or less than 85%.

Abstract: A centrifugal pump includes: a rotating blade member including an impeller member and a rotor magnet associated with the impeller member, a main body casing in which the rotating blade member is accommodated, a coil portion that rotates the rotating blade member, wherein the coil portion is located on a periphery of the rotor magnet, and an axial member which is associated with the main body casing, wherein the rotating blade member pivots around the axial member. A clearance, in which the rotor magnet is allowed to move, is provided between the blade member and the rotor magnet.

Abstract: A submersible electrical motor that drives a pump has an electrical connector receptacle base. A plug opening extends from the base into an interior of the motor and has a side wall extending around a plug opening axis. An electrical connector plug at an end of a motor lead has a nose portion that stabs into the plug opening and is surrounded by the side wall. An inward facing shoulder formed in the side wall faces inward into the motor. An outward facing shoulder on the nose portion faces outward from the motor interior and registers with the inward facing shoulder when the nose portion is fully received within the plug opening. A retainer inserts into engagement with the inward and outward facing shoulders to prevent outward movement of the plug in the plug opening. The retainer may be a pin or a ring.

Abstract: An oscillating fan, by adding an oscillating motor, to drive the drive gear to move along the periphery of the fixed gear, the oscillating motion of the fan is achieved is disclosed. The fan motor is only used for driving the blades to blow air in a rotating mode, so that the load of the fan motor is reduced, and the oscillating motion stability of the blades driven by the drive gear is ensured. Meanwhile, the installation space of the oscillating and rotating pivot part is reduced, so that the whole oscillating fan is small in size, convenient to transport.

Abstract: A regulator assembly, comprising a vaned diffuser, a motor, a driving gear engaged with a driven gear, the driven gear having rectangle-shaped through holes thereon, the rectangle-shaped through holes disposed and extending along an axis of the driven gear, and a regulating mechanism including a regulator, a supporting member, wherein the regulator is sleeved on the supporting member, and wherein the vaned diffuser is fixed on the supporting member, and regulator sliding members fixed to the regulator through the rectangle-shaped through holes of the driven gear, whereby the motor is configured to drive the driving gear to rotate, the driving gear is configured to drive the driven gear to rotate, the driven gear is configured to push the regulator sliding members to move, and the regulator sliding members are configured to drive the regulator to rotate relative to the vaned diffuser, thus driving the regulator to move along its axis.

Abstract: A centrifugal compressor is disclosed. The compressor includes an impeller, an electromagnetic actuator, and a flow control insert. The flow control insert is selectively moveable in response to the electromagnetic actuator to regulate a flow of fluid expelled by the impeller.

Abstract: A cooling fan module for a heat exchanger or the like, has a motor, a fan driven by the motor and a speed controller connected between the motor and a power supply. The speed controller is configured to operate the motor in a high speed mode and a low speed mode. The speed controller includes a high speed branch and a low speed branch connected in parallel. The low speed branch includes a pulse width modulation circuit configured to reduce an average voltage by a fixed duty ratio to achieve a low speed operation of the motor. By eliminating the conventional voltage dropping resistor, the speed controller reduces the power consumption, thus increasing the efficiency of the module, in the low speed mode of operation.

Abstract: A centrifugal pump includes a rotating blade member including an impeller member and a rotor magnet, a main body casing accommodating the rotating blade member, a coil portion that rotates the rotating blade member is located on a periphery of the rotor magnet, and an axial member associated with the main body casing. The rotating blade member pivots around the axial member. The axial member includes an end portion at axial rotor magnet side, and is fixed at the end portion. The main body casing forms a fluid introducing passage, and is associated with a blade casing accommodating the rotating blade member. An end portion of a bearing portion at an axial fluid introducing passage side is protruded such that the end portion of the bearing portion is exposed from an inner periphery side opening portion of the blade casing to the fluid introducing passage side.