Abstract: A liquid fuel catcher has a case which defines a plurality of chambers formed as depressions in a passage so that a liquid fuel is accumulated. The case has a communicating portion which communicates the chambers in series at upper portions thereof. The case has openings at each bottom portions of the chambers. The case has a return passage which returns the liquid fuel accumulated in the chambers to a fuel tank. The liquid fuel catcher has a return valve. The return valve closes the return passage, when the liquid fuel level in the fuel tank exceeds a predetermined level. The return valve opens the return passage, when the liquid fuel level in the fuel tank is less than a predetermined level. The fuel returns to the fuel tank from the chambers through the return valve.

Abstract: The invention discloses a dual-channel piezoelectric injector, including a dual-channel injector body, its bottom in turn is connected with an upper intermediate, a lower intermediate and a dual-channel needle valve body. At the top of the dual-channel injector body there are two tubing interfaces, and each tubing interface has a tubing fuel duct. There are two laminated piezoelectric actuators and two spray fuel ducts connected to two tubing fuel ducts respectively inside the dual-channel injector body. The upper intermediate and lower intermediate connected with each other to form the middle connection body. From top to bottom of the middle connection body, there is an external control fuel duct, an external spray fuel duct, an internal control fuel duct and internal fuel spray duct.

Abstract: A fuel injector has a seat and at least one seat passage. The seat includes an outer tip surface through which the seat passage extends. A non-thermally conducting coating is provided on at least a portion of the outer tip surface and not on surfaces defining the seat passage. The coating is constructed and arranged to be heated by combustion gases so that the outer tip surface reaches a temperature greater than a temperature that the outer tip surface would reach if the coating was not provided so as to cause evaporation of fuel that contacts the outer tip surface, The seat passage is constructed and arranged to not be substantially heated by conduction from the outer tip surface and to be cooled by fuel passing there-through so as to prevent deposits of combustion from accumulating on surfaces defining the seat passage.

Abstract: A method for venting a fuel supply line of a direct-injection internal combustion engine, wherein the fuel supply line has an injector, a high-pressure accumulator upstream of the injector, a flow rate limiting valve between the high-pressure accumulator and the injector for the purposes of limiting a fuel flow rate passing from the high-pressure accumulator to the injector, and a high-pressure pump upstream of the high-pressure accumulator for delivering fuel into the high-pressure accumulator. A pressure in the high-pressure accumulator is regulated by an intake throttle arranged upstream. of the high-pressure pump. In this case, it is provided that the fuel supply line is vented downstream of the high-pressure pump, wherein, during venting operating mode, a passage cross section for the fuel which is smaller than or equal to a predetermined threshold passage cross section is set in the intake throttle.

Abstract: In a fuel injection valve, it is possible to obtain spray in which the penetrating force of injected fuel is suppressed. The fuel injection valve includes a valve seat that forms a gap with a valve body, the gap allowing fuel to pass therethrough, and multiple injection holes that are located further downstream from the gap. The fuel to which pressure is applied flows out from the injection holes. When the flow velocity of the fuel in the gap formed between the valve body and the valve seat is indicated by meters per second, the flow velocity is set to be greater than a value obtained by multiplying the square root of the pressure applied to the fuel by 28. In this manner, the flow velocity in the gap increases, and flow velocity distribution inside the injection hole is uniformized, thereby suppressing an increase in penetration.

Abstract: A fuel injector includes a body and a needle that is disposed within an internal bore defined by the body. The needle includes a distal surface that intersects with a longitudinal axis of the needle. Moreover, the distal surface also faces the internal surface of the body. The needle further includes a sealing surface that is configured to seat on a sealing surface of the body. The internal surface of the body includes an axial bearing surface disposed between a distal end of the body and the sealing surface of the body. The needle includes an axial bearing surface at least partly facing the axial bearing surface of the internal bore. The axial bearing surface of the body cooperates with the axial bearing surface of the needle to guide movement of the needle relative to the body along an axial direction parallel to the longitudinal axis of the needle.

Abstract: In a fuel injection valve used in an internal combustion engine, fuel spray travel distance is shortened.

Abstract: An alternator-starter system is coupled with an engine and includes an electric machine, an inverter/rectifier, a plurality of batteries, a plurality of switches and at least one controller. The switches are operable to connect the plurality of batteries in series or in parallel. The batteries are connected in series to supply a torque to the engine to start the engine and, under at least some conditions, the batteries are connected in parallel to charge the batteries. The batteries may also be individually charged or charged in series. In some embodiments, when the rotational speed of the electric machine exceeds a first threshold, the system is operated in the generating mode with the batteries being connected in parallel until a larger second threshold is exceeded and the batteries are connected in series. A method of operating an alternator-starter system is also disclosed.

Abstract: A vehicular electronic control unit is provided that includes a first microcomputer equipped with an ignition power related function and a second microcomputer equipped with a battery power related function. The first microcomputer executes the ignition power related function to monitor an operation of the second microcomputer and to make the second microcomputer monitor an operation of the first microcomputer. The second microcomputer executes the battery power related function to monitor the operation of the first microcomputer and to make the first microcomputer monitor an operation of the second microcomputer. The first microcomputer includes a monitoring unit that monitors the operation of the second microcomputer in accordance with generation of a starting factor before turn on of an ignition switch.

Abstract: An internal combustion engine includes a cylinder block defining a combustion chamber therein, and a cylinder head mated to the cylinder block such that the cylinder head covers the combustion chamber. The internal combustion engine also includes a fuel nozzle configured for injecting a fuel into the combustion chamber and a plasma igniter configured for ejecting a plasma into the combustion chamber to ignite the fuel. The plasma igniter extends through the cylinder head and protrudes into the combustion chamber. The internal combustion engine further includes a dielectric coating disposed on the cylinder head. A vehicle including the internal combustion engine is also disclosed.

Abstract: A method of igniting a fuel within a combustion chamber defined by a cylinder block of an internal combustion engine includes injecting a first portion of a fuel into the combustion chamber, and energizing a first plasma igniter. The first plasma igniter is configured for generating a first plurality of free radicals, extends through a cylinder head mated to the cylinder block, and protrudes into an intake port defined by the cylinder head that is disposable in fluid communication with the combustion chamber. After injecting the first portion, the method includes activating a second igniter configured for initiating a flame within the combustion chamber to thereby ignite the fuel. The second igniter extends through the cylinder head and protrudes into the combustion chamber. An internal combustion engine is also disclosed.

Abstract: A laser ignition system has: at least one arrangement for producing a pulsed laser beam; and at least one arrangement for focusing the produced pulsed laser beam onto a focus zone, e.g., in order to ignite a combustible gas mixture in an internal combustion engine or a burner. The laser ignition system is designed to produce a pulsed laser beam having a normed fluence volume greater than 0.1.

Abstract: An electricity generating device comprising a housing; a first lobed rotor and a second lobed rotor rotatably arranged in a fluid passage enclosed by the housing such that the lobes of the first and the second lobed rotor intermesh to create a barrier between a high-pressure and a low-pressure side of the housing during operation of the device; a first electricity generator to which the first lobed rotor is coupled, the first electricity generator being capable of varying the load of the first lobed rotor; and a second electricity generator to which the second lobed rotor is coupled, the second electricity generator being capable of varying the load of the second lobed rotor. There is also provided a method of synchronizing rotational positions of a first lobed rotor coupled to a first electricity generator and a second lobed rotor connected to a second electricity generator in a turbine.

Abstract: A gap between an outer peripheral surface of a cylinder block and an inner periphery surface of a housing serves to reduce an agitation resistance of an operating oil with a simple arrangement. So this reduces an agitation loss and improves or increases a conversion efficiency between a hydraulic energy and a rotational energy.

Abstract: The invention provides a method of providing a tapered edge on a sheet comprising a fibrous material, comprising moving the sheet while carrying out the following steps: —moving the sheet past a freezing device, which sheet is provided with a substance embedding the fibrous material, at least at a first edge of the sheet, which substance is in a non-solid state at room temperature, in particular at 20 degrees Celsius, and cooling the first edge using the freezing device, so that the substance at the first edge becomes solid, —moving the sheet past a machining device while the substance is solid from the cooling using the freezing device, and —machining, during the step of moving the sheet past a machining device, the first edge with the machining device to provide a first tapered edge.

Abstract: An apparatus for generating hydrogen includes a renewable energy source for generating electrical energy and a hydrogen generation module powered at least partially by electrical energy generated by the renewable energy source. The hydrogen generation module generates hydrogen through electrolysis of water. The hydrogen may be used by a chemical generation module to form hydrogen containing chemical products such as ammonia, methanol and/or an olefin. In a preferred embodiment, the renewable energy source comprises a high altitude wind system.

Abstract: A rotation driving mechanism for windmill (1) includes an annular track part (2), a rotation driving part (11), and a plurality of swinging parts (15). The annular track part (2) is disposed on one of a base-side structure and a rotation-side structure, and has a track wall part (3) and first teeth (7). The rotation driving part (11) is fixed on the other of the base-side structure and the rotation-side structure. Each swinging part (15) has a swinging part body (16a) and second teeth (16b). When a rotating shaft (13) of the rotation driving part (11) is rotated so that the swinging parts (15) are swung with maintaining a predetermined phase difference thereamong, the swinging parts (15) are relatively moved with respect to the annular track part (2).

Abstract: A wind turbine system is presented. The wind turbine system includes a tower, a plurality of blades, a rotor supported by the tower and rotatably coupled to the plurality of blades, a control unit programmed to predict a net energy of the tower at one or more future points in time, and if the predicted net energy is within a design limit, then continue with baseline operating control models for normal operation of the wind turbine system, if the predicted net energy exceeds the design limit, then use a non-linear tower damping model to generate tower damping commands to control tower damping of the wind turbine system.

Abstract: A condition monitoring system for a network of distributed devices. The system includes at least one portable communication device and at least one central control server. Each of the distributed devices is provided with a monitoring unit for receiving and processing the condition data from at least one sensor and with a communication link between the monitoring unit and the central control server. The central control server is configured to store the condition data in combination the identification data. The monitoring unit is provided with a communication interface for connecting the portable communication device to the monitoring unit and to provide the portable communication device with a scanning device for scanning a computer-readable code provided on the or next to the monitoring unit. The portable communication device comprises application software configured to generate access information for establishing an encrypted data connection with the monitoring device based on the computer-readable code.

Abstract: A method and a system for managing loads on a wind turbine are provided. The method includes receiving a signal relative to a yaw misalignment of the wind turbine, generating a yaw error signal based on the yaw misalignment, and comparing the yaw error signal to a first predetermined yaw error threshold value. The method also includes regulating a speed of the rotor to a value determined by a predetermined tip speed ratio, reducing the yaw misalignment using a yaw control system, and restarting the wind turbine if the yaw error signal is reduced to less than a second predetermined yaw error threshold value within a predetermined period of time. The method further includes shutting down the wind turbine if the yaw error signal remains greater than the second predetermined yaw error threshold value beyond the predetermined period of time.

Abstract: A wind turbine system is presented. The wind turbine system includes a wind turbine tower, a plurality of blades, a rotor supported by the wind turbine tower and rotatably coupled to the plurality of blades, a torque control device coupled to the rotor, and a control system programmed to predict an over-speeding time T of an occurrence of an over-speed rotor event based at least in part upon a current rotor acceleration and a current rotor speed, that cannot be compensated by an available counter-torque margin of the torque control device, and, in response, to generate pitch commands for the pitch angles of the plurality of blades to avoid the over-speed rotor event.

Abstract: A method of making a wind turbine blade incorporating a lightning protection system, the method comprising: providing a wind turbine blade mould; arranging a protruding element in the mould; arranging an electrically conductive layer over the protruding element in the mould; arranging one or more structural layers and/or structural components over the electrically conductive layer; consolidating the layers under vacuum to form a blade shell having an integrated electrically conductive layer proximate an outer surface of the shell; separating the protruding element from the blade shell to define a recess in the outer surface of the shell, with the electrically conductive layer extending into the recess; providing an electrical component of the lightning protection system adjacent an inner surface of the shell; and electrically connecting the electrically conductive layer to the electrical component via a connecting member; wherein an end portion of the connecting member is housed in the recess such that a surf

Abstract: A rotating unit for rotating a first component of a wind turbine rotatably mounted on a second component, which includes a gearwheel element arranged on the first component, a drive arranged on the second component by a drive holder including a drive housing and a drive pinion for actuating the gearwheel element, a connecting element arranged on the drive housing and configured to form a releasable connection between the drive housing and the drive holder, and fastening means, which interact with the connecting element and can be actuated between a clamping position and a disengagement position. The fastening means connect the drive housing, in the clamping position, in a force-fitting manner to the drive holder. In the disengagement position, the drive housing is displaceable on the drive holder in an adjustment direction such that it is possible to adjust a tooth-flank clearance between the drive pinion and the gearwheel element.

Abstract: A rotation driving mechanism for windmill (1) includes an annular track part (2), a rotation driving part (11), and a plurality of swinging parts (15). The annular track part (2) is disposed on one of a base-side structure and a rotation-side structure, and has a circumferential wall part (4) and first teeth (7). The rotation driving part (11) is fixed on the other of the base-side structure and the rotation-side structure. Each swinging part (15) has a swinging part body (16a) and second teeth (16b). When a rotating shaft (13) of the rotation driving part (11) is rotated so that the swinging parts (15) are swung with maintaining a predetermined phase difference thereamong, the swinging parts (15) are relatively moved with respect to the annular track part (2).

Abstract: A pressure generating device has a housing and a lamellar arrangement with a number of lamellae separated by gaps. The lamellae are manufactured from solar glass. The pressure generating device has a means for converting the solar energy incident through the lamellar arrangement into thermal energy, such that, by this means the air situated in the interior of the pressure generating device can be heated. The pressure generating device has at least one air inlet opening through which air can enter the interior of the pressure generating device and at least one second air outlet opening through which the heated air can emerge from the interior of the pressure generating device.

Abstract: Heat exchange apparatus (24, 80) includes first heat transfer tubes (50), contained within an enclosure (43) and coupled to receive a first fluid heated by an energy source (22, 36). Second heat transfer tubes (52) are interleaved with the first heat transfer tubes within the enclosure so as to heat a second fluid contained in the second heat transfer tubes by transfer of heat from the first fluid, and are coupled to output the heated second fluid to drive target equipment (30). A heat storage medium (48) fills the enclosure.

Abstract: The present invention is about an actuator comprising at least one shape-memory-alloy based converter in a housing and at least one preload spring. The actuator is configured to cause a motion of at least one movable member. The optimal structures along with corresponding methods for improving an actuator are claimed in the independent claims. Preferable embodiments are presented in the dependent claims.

Abstract: A hydraulic swash block positioning system for positioning a swash block to set a variable displacement, the hydraulic device including a rotor with pistons and piston chambers, the positioning system having, between the housing and the swash block, a positioning cylinder with a positioning piston forming a positioning chamber for setting an average value of the swash block position and a control valve connecting the high oil pressure source with the positioning chamber through a feeding line. In accordance with the invention the feeding line is connected to an oil container that has a variable container volume that can be adjusted synchronously with the changes in the number of piston chambers connected to the high oil pressure source.

Abstract: A pump includes a liquid housing having a liquid chamber with a piston/diaphragm assembly arranged therein that responds to a suction stroke and draws liquid into the liquid chamber, and responds to a pressure stroke and provides liquid from the liquid chamber; and a gas housing having a slide valve assembly separating first and second gas chambers. The slide valve assembly responds to a suction-to-pressure-force at the suction stroke conclusion, changes from a suction-to-pressure stroke state, provides gas from the first to second gas chamber through the slide valve assembly, and provides the pressure stroke so liquid passes from the liquid chamber; and responds to a pressure-to-suction-force at the pressure stroke conclusion, changes from the pressure-to-suction stroke state, provides gas from the second chamber through the slide valve assembly, and provides the suction stroke so liquid is drawn into the liquid chamber.

Abstract: A water amusement and hydration bicycle can include a bicycle frame and a container to contain water carried by the bicycle frame, the container having an outlet port and a multipurpose port. The bicycle can also include an amusement nozzle removably coupled to the outlet port. The bicycle can further include a drinking nozzle removably coupleable to the multipurpose port. The bicycle can still further include a water pump carried by the bicycle frame and operable to pump the water from the container through the outlet port for delivery to the amusement nozzle. In addition, the bicycle can include a gas pump operable to pressurize gas in the container to move the water from the container through the multipurpose port for delivery to the drinking nozzle when the drinking nozzle is coupled to the multipurpose port. The multipurpose port can be coupleable to a water source to provide water to the container.

Abstract: A vacuum pumping system comprises a plurality of vacuum pumping arrangements for evacuating an enclosure and an auxiliary vacuum chamber for evacuation by at least one first vacuum pumping arrangement. The vacuum pumping system has a first state for evacuating the enclosure and a second state for conserving power consumed by the system. In a first stage of the second state the first vacuum pumping arrangement is arranged to evacuate an exhaust of at least one second vacuum pumping arrangement and in a second stage the exhaust of the first pumping arrangement is arranged to be evacuated by the auxiliary vacuum chamber.

Abstract: The piston (P) comprises a tubular skirt (10), and a head (H) affixed in the interior of the skirt (10), close to an end edge (11) of the latter and carrying a suction valve (20). The head (H) comprises a central hub (30) having an end front face (30a) and incorporating radial wings (31) whose end edges (31a) are affixed to the skirt (10). The central hub (30) defines, with the skirt (10) and the radial wings (31), respective suction axial passages (32). The head (H) further comprises a cover (40) having a contour concentric to the inner contour of the skirt (10) and having a front face (40a) and a rear face (40b) which is affixed to the central hub (30) by the end front face (30a) of the latter, the contour of the cover (40) maintaining, with the inner contour of the skirt (10), a radial gap which defines a suction annular opening (42) to be closed by the suction valve (20).

Abstract: A linear compressor, a shell for a linear compressor, and a method for manufacturing a shell of a linear compressor are provided. The shell may have at least one portion having a multilayer plate, in which at least two plates may be stacked in a direction substantially perpendicular to an axis of a piston so as to accommodate a cylinder, the piston, which may be reciprocated within the cylinder, and a motor assembly directly connected to the piston to provide a drive force to the piston. At least one resonator may be disposed in or at at least a portion of an inner surface of the shell.

Abstract: A pump assembly for pumping a fluid lubricant such as grease or oil, the pump assembly comprising: a pump mechanism configured for moving a fluid lubricant; a pneumatic cylinder configured for being powered by an air source, the pneumatic cylinder comprising: a movable member for operating the pump mechanism, wherein the pump assembly further comprises a switch for detecting a position of the movable member; a valve configured for shifting a position of the moveable member upon an activation of the valve; and a control unit operable connected to the switch and the valve. The control unit is configured for controlling the activation of the valve in response to a detection of the position of the movable member by the switch, such that a pumping effect of the pump mechanism can be controlled. The pump assembly can be integrated into a lubrication system.

Abstract: A portable air compressor includes a box and a compressor unit accommodated in the box. The compressor unit includes a main frame, a cylinder fitted with a piston body, a motor, and a transmission mechanism. The motor drives the transmission mechanism to have the piston body conduct reciprocating motion in the cylinder to produce compressed air, which is transferred to an air storage container. The cylinder and the main frame are integrally formed of plastic. The cylinder defines an exit hole communicating with an inner space thereof. A metal seat is integrally formed at the cylinder. The central hole of the metal seat communicates with the exit hole of the cylinder. A plug is urged by a compression spring to seal the central hole of the metal seat. The metal seat can endure high temperature within the cylinder to ensure air-tightness between the plug and the metal seat.

Abstract: A pump moves fluid by means of a piston reciprocating inside a cylinder. Fluid enters the cylinder through an inlet valve that passes through the cylinder head, and has an enlarged surface inside the cylinder, which seals against the cylinder head. This valve is normally held closed by a spring. As the piston advances, fluid is forced out of the cylinder through a passage in the cylinder head and a check valve. A rod is affixed to the piston and passes through the inlet valve. As the piston retracts, the rod slides through the inlet valve, until a stop, affixed to the rod, encounters the stem of the inlet valve. The spring holding the valve closed is overcome and the valve opens as the piston and rod move farther, until the piston is in its fully retracted position. Fluid enters the cylinder until the piston again begins to advance. The stop ceases to push the inlet valve open, and the spring again holds it closed.

Abstract: A piston with an integrated heat exchanger comprises a seal, a piston hub and a piston rod. The piston hub is further provided with a coolant reservoir and an outlet nozzle at its lateral surface. The heat exchanger integrated into the piston hub and/or the piston hub include a coolant manifold, a coolant passage communicating thereto, and a plurality of channels connecting to the coolant manifold and extending radially to the annulus. Said heat exchanger provides enhanced efficiencies of heat-exchange and debris-flushing.

Abstract: The invention relations to a hydraulic machine of the Dry-Case construction type comprising a hydraulic machine housing for receiving a hydrostatic driving mechanism for conveying hydraulic fluid with a driving shaft operational connected with the driving mechanism. The driving shaft is mounted rotatable about its longitudinal axis in the hydraulic machine housing. Neither the driving mechanism, nor the driving shaft nor its bearings splash or move in a sump of the hydraulic fluid. Lubricant can be pumped to bearings of the driving shaft and to the driving mechanism by a lubrication pump arranged on the driving shaft and being driven by driving shaft. The lubrication pump do not splash in a sump of the hydraulic fluid either and comprise a suction port which leads to a hydraulic fluid reservoir.

Abstract: A relief device including: an oil pump; an upstream flow passage provided from a discharge section side of the oil pump to an engine; an oil-pressure relief valve relieving oil by a valve body moving due to oil pressure; and a temperature-sensitive relief valve B relieving oil by detecting an oil temperature and opening and closing steplessly. The oil-pressure relief valve and the temperature-sensitive relief valve are disposed in parallel in the upstream flow passage. A portion of the pump housing of the oil pump is formed in an integrated fashion with a casing of an oil circulation mechanism.

Abstract: A two stage pump (2?, 4?), where the high pressure stage (4?) is a gear pump (11, 12), comprises a driving of the other stage (2?) by a support shaft (74), mounted in the driven pinion (12), the shaft (74) being driven by the drive shaft (21), by means of a pair of toothed wheels (77, 79) adjacent to the rest of the stage (4?), which can allow different rotation speeds between the two stages (2?, 4?). The support shaft (74) may be supported by stops and hydrodynamic bearings, directly integrated and lubricated in the driven pinion, which make the design lighter and more compact. The shaft (74) and the toothed wheels (77, 79) ingeniously transmit the loads from the stage (2?) to the stage (4?) in such a way as to cancel out the usual hydraulic loads, stemming from pressure, and mechanical, forces stemming from rotational drivings on the driven pinion (12).

Abstract: The vane pump includes a rotor, a plurality of slits, vanes that are respectively received in the slits, a cam ring that has an inner circumferential cam face with which tip portions of the vanes are brought into sliding contact, pump chambers that are defined by the rotor, the cam ring, and the adjacent vanes, a side member that has a sliding contact surface with which the side surface of the rotor is brought into sliding contact, a discharge port that is formed so as to open to the side member, the discharge port being configured to guide working fluid discharged from the pump chamber, and a notch that are provided on the side member so as to extend from the opening of the discharge port in direction opposite to rotating direction of the rotor. The notch is formed radially outside of the protruded portion of the rotor.

Abstract: A compressor includes: a compression space with an annular shape comprising an inner circumferential surface and an outer circumferential surface; and a discharge opening formed in a direction parallel to a shaft direction of the compressor, to discharge a refrigerant compressed in the compression space, wherein a first portion of a cross-sectional area of the discharge opening overlaps a portion of a cross-sectional area of the compression space, a second portion of the cross-sectional area of the discharge opening does not overlap the cross-sectional area of the discharge opening, and the ratio of the non-overlapping second portion of the cross-sectional area of the discharge opening to the entire cross-sectional area of the discharge opening is 0.1 or less. With such a configuration, a dead volume generated in the compression space can be reduced, and thus compressor efficiency can be enhanced.

Abstract: A centrifugal fan includes: a motor; an impeller having an inlet port, the impeller being configured to be rotated by the motor and to discharge air suctioned from the inlet port outward from an outer circumferential portion of the impeller; a lower casing that is located below the impeller; a circuit board disposed between the lower casing and the impeller, the circuit board being, mounted with an electrical component including a drive circuit that drives the motor, wherein the impeller has a recessed portion formed in an annular shape around a rotational axis and on a lower face that faces the lower casing and the circuit hoard, and wherein at least a part of the electrical component is located inside the recessed portion of the impeller.

Abstract: A vacuum pump may include a regenerative pumping mechanism and a drag pumping mechanism. The regenerative pumping mechanism may include a generally disc-shaped member mounted on an axial shaft for rotation relative to a stator of the regenerative pumping mechanism. The drag pumping mechanism may include a generally cylindrical-shaped member mounted at an outer circumferential portion of the disc-shaped member for rotation about the axial shaft relative to a stator of the drag pumping mechanism.

Abstract: A turbocharger is disclosed for use with an engine. The turbocharger may include a housing at least partially defining a compressor shroud and a turbine shroud, a turbine wheel disposed within the turbine shroud, a compressor wheel disposed within the compressor shroud, and a shaft connecting the turbine wheel to the compressor wheel. The turbocharger may also include an annular recirculation passage extending between an inlet located radially outward of the compressor wheel and an outlet located upstream of the compressor wheel, and a generally ring-shaped hub at least partially forming the recirculation passage. The hub may have an outer surface. The turbocharger may further include a plurality of first vanes disposed circumferentially around the outer surface, and a plurality of second vanes disposed circumferentially around the outer surface. The second vanes may be shorter than the first vanes.

Abstract: An electric fan includes blades and an outer rotor motor for rotating the blades. The motor includes a rotor rotatable about an axis and a generally toroidal stator including a core and electrically conductive wiring wound about the core. The rotor is rotatable about an axis. The rotor includes a rotor can and a plurality of arcuately arranged magnets fixed relative to the can. The blades are mounted to the can. The core includes a yoke and a plurality of arcuately spaced apart teeth extending from the yoke. The teeth cooperatively present an outer radial margin of the core. Each of the magnets is spaced radially outwardly from the radial margin such that the core and the magnets cooperatively define a circumferentially extending radial gap therebetween. The motor defines at least ten poles. Each of the coils has an axial thickness of about 5 mm or less.

Abstract: A blower and an air conditioner that can generate airflow simulating that in the natural world are provided. The blower and the air conditioner each include: a fan configured to generate blowing air; a pair of vertical airflow direction vanes separated from each other as a left side and a right side on a front side of the fan, the pair of vertical airflow direction vanes causing the blowing air generated by the fan to be let out upward or downward; and a control section configured to drive the pair of vertical airflow direction vanes separately while varying a rotation frequency of the fan. Such configuration of the blower and the air conditioner enables generation of airflow simulating that in the natural world.

Abstract: Disclosed are a method and an apparatus for controlling subrack fans. The method comprises: by installing multiple boards installed with high-power components in different areas of a subrack respectively, forming multiple heat dissipation air channels corresponding to the multiple boards respectively; installing a fan group comprising multiple heat dissipation fans on the subrack; dividing the fan group into multiple fan areas corresponding to the multiple heat dissipation air channels respectively, so that each fan area blows air to a corresponding board through a corresponding heat dissipation air channel; detecting temperature of each board and a rotating speed of a corresponding fan area in real time; adjusting the rotating speed of the fan area according to a detection result, so that the rotating speed of the fan area increases or decreases as the temperature of the corresponding board increases or decreases. Also disclosed is the apparatus for controlling subrack fans.

Abstract: A compression train system and method for compressing air for an air separation unit is provided. The system includes at least one initial air compressor configured to receive and compress a flow of ambient pressure air and driven by a variable speed motor. The system further includes a plurality of downstream compressors or compression turbo-machines disposed in a series arrangement with the at least one initial compression stage. The desired flow rates to the compression system is controlled by adjusting the speed of the variable speed motor and the position of inlet guide vanes to increase or decrease the flow rate of the ambient pressure air and keep the speed of the variable speed motor above or below a restricted speed zone.

Abstract: A bushing structure cooperating with a shaft is disclosed. The bushing structure includes a cylindrical body and an extension portion. The cylindrical body has a shaft hole and the shaft is disposed in the shaft hole. The extension portion is disposed at one end of the cylindrical body and surrounds the cylindrical body. The cylindrical body and the extension portion are made of an iron-contained material.