Thu, 25 Aug 2016 08:00:00 EDTA motor includes a stator and a rotor. The stator includes an inner circumference stator section and an outer circumference stator section. The inner circumference stator section and the outer circumference stator section each include two stator cores and a coil. The two stator cores each include claw poles and are coupled to each other. The coil is arranged between the two stator cores. The rotor includes an inner circumference magnet and an outer circumference magnet. The inner circumference magnet, which is arranged at an inner circumferential side of the inner circumference stator section, opposes the claw poles in the radial direction. The outer circumference magnet, which is arranged at an outer circumferential side of the outer circumference stator section, opposes the claw poles in the radial direction. The inner circumference stator section and the inner circumference magnet form an inner circumference motor unit. The outer circumference stator section and the outer circumference magnet form an outer circumference motor unit.
Thu, 25 Aug 2016 08:00:00 EDTApparatus is provided featuring a signal processor or processing module configured to receive signaling containing information about a pump no flow idle (NFI) state when the pump is running at a pump idle speed; and determine corresponding signaling containing information about whether the pump should remain in a no flow shutdown (NFSD) state or the pump NFI state, based upon the signaling received. The signal processor or processing module is configured to provide the corresponding signaling containing information about whether the pump should remain in the NFSD state or the NFI state.
Thu, 25 Aug 2016 08:00:00 EDTA fan device including an electric motor assembly (24, 26) designed to drive at least one blade wheel (34, 36) in a flow channel (18) provided axial to the blade wheel, an electronic assembly (38, 40), which forms commutator and/or ballast electronics for the electric motor assembly, is arranged in series with the electric motor assembly, and is produced on a circuit carrier, and a carrier unit (14) formed axially on or in the flow channel for retaining the electric motor assembly, wherein the carrier unit, which forms an inner circumference of the flow channel at least in sections, is made from a thermally conductive material, wherein the carrier unit has, on an outer segment (16) radially opposite to the flow channel, a mounting and cooling surface for interacting with the circuit carrier and/or power electronics components provided thereon in a heat-dissipating manner.
Thu, 25 Aug 2016 08:00:00 EDTA seal bracket assembly includes a coupling member having: a first end for sealingly engaging a pump; an opposite second end for sealingly engaging a source of rotary force; a passage defined therein which extends between the first and second ends which is structured to accommodate therein a linkage coupling an output shaft of the source of rotary force and an input shaft of the pump; and a drain port defined in the coupling member which extends between the passage and an outer surface of the coupling member. The assembly further includes an air tank which defines an air space of a predetermined volume therein and includes and an inlet, coupled to the drain port such that the passage and the air space are in fluid communication with each other, and an outlet, which is the only opening to the surrounding environment.
Thu, 25 Aug 2016 08:00:00 EDTA motor-driven compressor includes a compression mechanism, an electric motor, a housing, a drive circuit unit, a cover body, and a shield. The compression mechanism has a compression chamber and compresses refrigerant. The electric motor drives the compression mechanism. The housing accommodates the compression mechanism and the electric motor. The drive circuit unit drives the electric motor. The drive circuit unit includes a multi-layer board and electronic components mounted on the multi-layer board. The multi-layer board includes a ground layer. The cover body covers the drive circuit unit. The cover body is arranged at an outer side of the housing. The shield encompasses at least some of the electronic components. The shield is electrically connected to the ground layer of the multi-layer board.
Thu, 25 Aug 2016 08:00:00 EDTA double suction centrifugal pump is provided. An impeller is mounted inside a pump housing, which is mounted inside a three-dimensional frame made of two end plates connected by crossbars. The pump housing has opposing inlet openings on opposite sides of the housing so that fluid is sucked into the housing from both sides and discharged by the impeller. The impeller is mounted on a driveshaft that extends through the dual inlet openings and openings in each of the end plates. Dual hydraulic motors are mounted on the exterior of each respective end plate and cooperatively rotate the driveshaft. Agitators are attached to the driveshaft and rotate with the driveshaft. The agitators macerate solids such as vegetation or other organic matter so that the solid matter does not clog the pump intakes. The pump is effective for dredging and pumping sand and other abrasive solids and in severe service applications of high viscosity, high density fluids.
Thu, 25 Aug 2016 08:00:00 EDTA motor-driven compressor includes an electric motor, a drive circuit, a modulation method controller, a temperature measuring section, a high-temperature (HT) stop controller, and a high-temperature (HT) stop temperature setting section. The high-temperature (HT) stop controller stops the electric motor when the temperature measured by the temperature measuring section is higher than or equal to a predetermined high-temperature (HT) stop temperature. When the modulation method is the three-phase modulation, the HT stop temperature setting section sets the HT stop temperature to a three-phase high-temperature (HT) stop temperature. When the modulation method is the two-phase modulation, the HT stop temperature setting section sets the HT stop temperature to a two-phase high-temperature (HT) stop temperature, which is higher than the three-phase HT stop temperature.
Thu, 25 Aug 2016 08:00:00 EDTA fluid pump includes a housing; an outlet; an inlet plate within the housing and having an inlet; an outlet plate disposed within the housing and having an outlet plate outlet passage; an electric motor which rotates about an axis; a pumping arrangement rotationally coupled to the electric motor such that rotation of the pumping arrangement causes fluid to be pumped from the inlet to the outlet plate outlet passage and through the outlet; a diverter plate between the outlet plate outlet passage and the electric motor and having a diverter passage which provides fluid communication from the outlet plate outlet passage, past the electric motor, to the outlet, the diverter plate also having an imperforate wall which is axially aligned with the outlet plate outlet passage such that the imperforate wall laterally directs fluid from the outlet passage to the diverter passage.
Thu, 25 Aug 2016 08:00:00 EDTAn electric oil pump is provided to including: (i) a pump part housed in a pump part-accommodating portion formed in a metal pump housing; (ii) an electric motor part housed in an electric motor part-accommodating portion formed in the pump housing; and (iii) a drive control part having (a) a control part case fastened to the pump housing and formed of synthetic resin, (b) a control board for supplying a driving current to the electric motor part, and (c) a metal control part cover fastened to the control part case and accommodating the control board. In this pump, the control part cover and the pump housing are covered with an oxide film having corrosion resistance and heat resistance at least at their outer surface, and the pump housing provided with the oxide film is fixed to an automatic transmission casing in a manner to be immersed in a hydraulic oil.
Thu, 25 Aug 2016 08:00:00 EDTA fluid end assembly of a high pressure reciprocating pump includes a housing defining an interior bore, a first opening at a first end of the interior bore, and a shoulder that divides the interior bore into a plunger bore and an outer bore. A plurality of overhangs is formed as part of the housing and extends into the outer bore, a plunger is positioned within the space and is operable to reciprocate along an axis within the plunger bore, and a valve cover is coupled to the housing and positioned to engage the shoulder to close the first opening. A valve cover retainer is positioned within the outer bore and includes a plurality of projections arranged to selectively engage the plurality of overhangs to sandwich the valve cover retainer between the valve cover and the housing to lock the valve cover into engagement with the shoulder.
Thu, 25 Aug 2016 08:00:00 EDTA compressor may include a compression cylinder, a compression piston, a crankshaft, an injection bore, a position sensor, and a valve assembly. The compression piston is disposed within the compression cylinder and is operable to compress a vapor disposed within the compression cylinder from a suction pressure to a discharge pressure. The crankshaft is operable to cycle the compression piston within the compression cylinder. The injection bore may be in fluid communication with the compression cylinder and may be operable to selectively communicate intermediate-pressure vapor at a pressure between the suction pressure and said discharge pressure to the compression cylinder. The position sensor may measure a rotational position of the crankshaft. The valve assembly may be associated with the injection bore. The valve assembly may be operable to control passage of fluid from the injection bore into the compression cylinder in response to data provided by the position sensor.
Thu, 25 Aug 2016 08:00:00 EDTA system and method for pumping fluid using a pump cassette is disclosed. The system includes a control assembly for operating the pump cassette. A force assembly having a movable member is capable of applying force to the pump cassette to press the pump cassette against the control assembly. The movable member may be an expandable member, such as a bladder.
Thu, 25 Aug 2016 08:00:00 EDTA long-stroke pumping unit includes a tower; a counterweight assembly movable along the tower; a crown mounted atop the tower; a sprocket supported by the crown and rotatable relative thereto; and a belt. The unit further includes a motor having a stator mounted to the crown and a rotor torsionally connected to the sprocket; and a sensor for detecting position of the counterweight assembly. The pumping unit may include a dynamic control system for controlling a speed of a motor.
Thu, 25 Aug 2016 08:00:00 EDTAn angle adjustment mechanism for a pump and a motor includes a base, an eccentric bushing and a fixed link. The base has a motor flange for mounting a motor, a pump flange opposite the motor flange for mounting a pump, a hinge disposed between the motor flange and the pump flange and a pair of spaced apertures disposed opposite the hinge. The eccentric bushing has a body portion received in one of the apertures of the base and an inner bore with an axial center line offset from an axial center line of the body portion. The fixed link has a first pin portion received in the inner bore of the eccentric bushing and a second pin portion received in the other of the apertures of the base. With this arrangement, rotation of the eccentric bushing changes the distance between the apertures of the base, thereby changing an angle between the motor flange and the pump flange about the hinge.
Thu, 25 Aug 2016 08:00:00 EDTA reciprocating compressor is provided with a compression section which compresses gas, and a crank section which has a crankshaft and drives the compression section. The compression section is provided with a wall body portion which includes a cylinder and constitutes a wall body of the compression section, a cylinder head attached to the cylinder, a piston which reciprocates within the cylinder, a piston rod which couples the crankshaft and the piston, and at least one sealing member fixed to the wall body portion and disposed in the circumference of the piston rod. The wall body portion has a first boundary wall which forms the boundary with the crank section in the crank section side with respect to the at least one sealing member and acts as a division surface when the crank section and the compression section are separated.
Thu, 25 Aug 2016 08:00:00 EDTA method of conveying fluid in an apparatus for extracorporeal blood treatment is disclosed, wherein fluid is conveyed by a peristaltic pump from a low-pressure side to a high-pressure side, an elastically deformable fluid line arranged between the low-pressure side and the high-pressure side being deformed between a support surface and a rotor rotating with respect to the latter and having at least two pinch elements, wherein the pinch elements are repositioned at angles relative to each other during rotation of the rotor for causing pre-compression. A dialysis machine including a peristaltic pump conveying fluid from a low-pressure side to a high-pressure side, wherein the peristaltic pump is arranged to receive an elastically deformable fluid line between the low-pressure side and the high-pressure side and includes a support surface supporting the fluid line and a rotor is also disclosed, the rotor including at least two pinch elements each deforming the fluid line between itself and the support surface, wherein the pinch elements are formed to be repositioned at angles relative to each other in the direction of rotation.
Thu, 25 Aug 2016 08:00:00 EDTA motor-driven compressor includes a compression portion, which compresses a fluid, an electric motor, which drives the compression portion, a drive circuit, which drives the electric motor, a temperature obtaining section, which obtains the temperature of the drive circuit, and a drive mode controller, which controls the drive mode of the drive circuit. The drive mode controller controls the drive mode based on the temperature obtained by the temperature obtaining section and at least one of the rotational speed and the modulation factor of the electric motor.
Thu, 25 Aug 2016 08:00:00 EDTA method is provided for actively compensating for pressure changes of a working fluid within a conduit. A first cavity is provided in fluid communication with the conduit. A second cavity is in fluid communication with a control fluid. A plunger is in communication with both the first cavity and the second cavity and is movable in response to pressure changes of the working fluid in the conduit. The plunger is re-centered. Re-centering the plunger includes the following steps. Position data representative of movement of the plunger is collected. The position data is analyzed with a control unit to determine an average position of the plunger which is offset relative to a center position. The average position of the plunger is compared, with a control unit, to the center position. A signal is relayed from the control unit to a control valve to urge the plunger toward the center position.
Thu, 25 Aug 2016 08:00:00 EDTA piston shifting control system is provided to control a displacement pump to maximize a stroke length of a piston and prevent damages to the entire pump system. The displacement pump may include a linear variable displacement transducer (LVDT) inserted through one end of a cylinder body and used to detect a position of the piston within the cylinder. The shifting control system is configured to monitor a position of the piston assembly in the displacement pump and adjust a shifting trigger point of the piston assembly in each stroke to maximize the stroke length.
Thu, 25 Aug 2016 08:00:00 EDTA fuel pump includes a holed disk-shaped plate and a coil spring to press the plate toward a lifter. The plate has an inner circumferential surface to be engaged with a groove in a projection-side end portion of a plunger. Also, a joint port that connects the inner peripheral surface of the plate to an outer peripheral surface thereof is provided in the plate. The coil spring is located between the plate and a pump body. The plate is assembled in the fuel pump to dispose the joint port at a position in an opposite direction to the direction of a side force to be generated during compression of the coil spring when viewed from a central axis of the coil spring.
Thu, 25 Aug 2016 08:00:00 EDTA pump has a housing, in which an electric motor and at least one pump stage that can be driven by a shaft of the electric motor are arranged. An inlet and an outlet are located on opposite sides of the pump housing. Connection lines for contacting the electric motor 3 are led through the inlet side of the pump housing to the electric motor.
Thu, 25 Aug 2016 08:00:00 EDTA product for use with a turbocharger is disclosed. The product may include a housing with an opening extending through at least part of the housing. An outer bearing race may be positioned in the opening. An inner bearing race may be rotatably positioned in the outer bearing race. A turbine wheel may be fixed to one end of the inner bearing race. A compressor wheel may be fixed to another end of the inner bearing race. The inner bearing race may be comprised of one, two, or more race sections. The turbine wheel may be connected to the compressor wheel only through the inner bearing race or race sections.
Thu, 25 Aug 2016 08:00:00 EDTThe invention relates to a fluid meter (27) comprising a housing (28) defining at least one crankcase (29) and two cylinders (25, 26), a crankshaft (11) disposed in the crankcase (29), two pistons (3, 4) respectively mounted in the cylinders (25, 26) for reciprocal movement, a first connecting rod (12) connected to one of the pistons (3) and to the crankshaft (11) for rotating the crankshaft (11) in response to the movement of the one piston (3), and a second connecting rod (13) connected to the other piston (4) and to the crankshaft (11) for rotating the crankshaft (11) in response to the movement of the other piston (4), wherein the first and second connecting rods (12, 13) have yoke slots (16, 17) for receiving a crank pin (19) radially offset from the crankshaft (11). The invention is characterised in that the first connecting rod (12) has a guiding rod (20) extending in a longitudinal direction of the cylinders, the guiding rod (20) being adapted to engage a corresponding cavity (22) in the second connecting rod (13) to support and guide the connecting rods (12, 13) in relation to each other during movement. The invention further relates to a multiple fluid meter assembly (61) comprising at least two fluid meters (27) as defined above, and to a fuel dispensing unit comprising a fluid meter (27) or a multiple fluid meter (61) as defined above.
Thu, 18 Aug 2016 08:00:00 EDTA two-piece magnet retention ring for an eddy-current fan drive mechanism.
Thu, 18 Aug 2016 08:00:00 EDTA motor includes a cylindrical housing, a cooling fan, and a rotating shaft. The cylindrical housing defines at least one upstream through hole at its circumferential wall. The cooling fan is mounted at the rotating shaft for generating airflow towards the cylindrical housing for dissipating the heat generated in the motor. The hollow hood is mounted to the cylindrical housing such that a head portion is located above the upstream through hole, thus defining an annular air-guiding channel therebetween, which can receive the airflow generated by the cooling fan and guide the airflow to enter the cylindrical housing via the upstream through holes, so that the heat generated therein can be dissipated effectively. Thus, heat is not easy to accumulate in the motor, and the performance and service life of the motor can be increased.
Thu, 18 Aug 2016 08:00:00 EDTAn engaging hole-of an impeller, which receives a shaft, is formed by an impeller first planar surface, which is contactable with a shaft first planar surface, an impeller second planar surface, which is contactable with a shaft second planar surface, and an impeller first curves surface-and an impeller second curved surface, which connect between the shaft first planar surface-and the shaft second planar surface. A first groove and a second groove, which are communicated with the engaging hole, are formed in the impeller first curved surface and the impeller second curved surface, respectively. When the shaft first planar surface contacts the impeller first planar surface upon rotation of the shaft in one direction, the first groove is deformed by an applied force. Thereby, the shaft second planar surface and the impeller second planar surface contact with each other.
Thu, 18 Aug 2016 08:00:00 EDTA control system includes a motor, an interface circuit, a motor controller and a detection control circuit. The interface circuit receives and converts a pulse width modulation signal. The fan dissipates heat when the motor is operated in a forward rotation mode and eliminates dust when the motor is operated in a reverse rotation mode. The detection control circuit reads a duty cycle of the converted pulse width modulation signal in real time. When the motor is operated in the forward rotation mode, the detection control circuit drives the motor controller to control the rotation speed of the fan according to the duty cycle. If the duty cycle is lower than or equal to a first threshold value, the detection control circuit drives the motor controller to switch operation mode of the motor from the forward rotation mode to the reverse rotation mode.
Thu, 18 Aug 2016 08:00:00 EDTA fan assembly includes an axis of rotation and a fan that includes an inlet ring and a rear plate that together define an inner fan chamber, wherein the fan is a backward curved plug fan. The fan assembly also includes an axial flux motor coupled to the rear plate such that the motor is positioned entirely outside the fan chamber to facilitate preventing interference between the motor and an airflow within the fan chamber.
Thu, 18 Aug 2016 08:00:00 EDTA vacuum/blower device is provided with a drive motor and a fan operatively connected to the drive motor and driven by the drive motor. A switching device is provided that switches the vacuum/blower device from a vacuum operation to a blower operation and from the blower operation to the vacuum operation. A suction pipe with an intake opening is provided, wherein, in the vacuum operation of the vacuum/blower device, a suction air flow is sucked in from the intake opening toward the fan in a first flow direction. The switching device switches a rotational direction of the fan, wherein the fan in the blower operation conveys a blower air flow through the suction pipe in a second flow direction that is oriented from the fan toward the intake opening.
Thu, 18 Aug 2016 08:00:00 EDTA dual intake centrifugal pump is provided. An impeller is mounted inside a pump housing, which is mounted within a pipe tee having an inlet, an outlet, and two ends closed with blind flanges. The pump housing has opposing inlet openings on opposite sides of the housing so that fluid is sucked into the housing from both sides and discharged by the impeller. The impeller is mounted on a driveshaft that extends through the dual inlet openings and openings in each of the blind flanges. An electric motor or dual hydraulic motors are mounted on each respective blind flange and cooperatively rotate the driveshaft. The inlet has a flange connection so that the entire assembly can be connected to a flanged outlet on a tank or to a flanged pipe for use as an inline booster pump.
Thu, 18 Aug 2016 08:00:00 EDTA pump includes a housing that contains a liquid, and a rotor including a plurality of blades extending radially from a shaft, and defining a conical space. A port member is disposed within the conical space. The port member defines an inlet port in communication with a low pressure region, a discharge port in communication with a high pressure region, and an anti-cavitation port in communication with a fluid supply having a pressure between the low and the high pressure regions. Each pair of adjacent blades cooperates with the liquid and the port member to enclose a variable volume bucket, wherein rotation of the rotor selectively positions a bucket in an inlet position adjacent the inlet port to draw in fluid, in an anti-cavitation position wherein the bucket is adjacent the anti-cavitation port and fluid is admitted into the bucket, and a discharge position wherein the bucket is positioned adjacent the discharge port to discharge fluid.
Thu, 18 Aug 2016 08:00:00 EDTThis scroll compressor (2) includes a first and second fixed scrolls (4, 5) comprising first and second fixed spiral wraps (9, 12), an orbiting scroll arrangement (7) comprising first and second orbiting spiral wraps (14, 15), the first fixed spiral wrap (9) and the first orbiting spiral wrap (14) forming a plurality of first compression chambers (16) and the second fixed spiral wrap (5) and the second orbiting spiral wrap (15) forming a plurality of second compression chambers (17). The scroll compressor further includes a drive shaft (23) adapted for driving the orbiting scroll arrangement (7) in an orbital movement, and a driving motor (24) arranged for driving in rotation the drive shaft (23) about a rotation axis, the driving motor (24) being located nearby the first fixed scroll (4). The first fixed scroll (4) includes at least one first discharge passage (21) arranged to conduct the refrigerant compressed in the first compression chambers (16) towards the driving motor (24).
Thu, 18 Aug 2016 08:00:00 EDTIn the compressor of the present invention, the first discharge chamber is divided into m first discharge sections, where m is an integer satisfying m≧2, and the second discharge chamber is divided into m second discharge sections. N out of the first discharge sections, where n is an arbitrary integer satisfying 1≦n
Thu, 18 Aug 2016 08:00:00 EDTAn air compressor system operably coupled to a power supply including an air storage tank and an air pump including an air manifold having an inlet configured to receive ambient air. The air pump is fluidly coupled to the air storage tank. The air compressor system also includes a motor having a first current level provided by the power supply to operate the air pump, a valve member in fluid communication with the inlet of the air manifold, and a controller operable to move the valve member to either increase or decrease a rate of ambient air traveling into the manifold. The controller monitors the first current level of the motor to change the rate of ambient air traveling into the manifold.
Thu, 18 Aug 2016 08:00:00 EDTA spot-cooling system including an electroactive polymer actuator, an enclosure defining an internal cavity, and a port in the enclosure is described herein. The electroactive polymer actuator may be configured to draw air into the enclosure. The electroactive polymer actuator may be configured to force air from the enclosure. The electroactive polymer actuator may comprise a corrugated electroactive polymer actuator. The electroactive polymer actuator may comprise a plurality of layered electroactive polymer actuators.
Thu, 18 Aug 2016 08:00:00 EDTA gas extraction system for gas analysis is provided. The gas extraction system includes the use of a peristaltic pump for moving condensates to a liquid trap assembly. An improved fluid flow is thus provided, which includes delivering condensate from a condensate separator to a peristaltic pump and delivering the condensate from the peristaltic pump to a liquid trap assembly.
Thu, 18 Aug 2016 08:00:00 EDTA miniature pump includes a cylinder, a piston module, a driving module and a wall body. The cylinder has a first end and a second end opposite to each other along a direction. The piston module is accommodated in the cylinder. The piston module has at least one pumping chamber structure protruded towards the second end, and the pumping chamber structure is able to extend or retract along the direction. The driving module is located at the second end and connected to the pumping chamber structure, configured to drive the pumping chamber structure to extend or retract along the direction. The wall body at least partially surrounds a position of the pumping chamber structure near the first end, and is located between the cylinder and the pumping chamber structure.
Thu, 18 Aug 2016 08:00:00 EDTA compressor includes an actuator that is configured to change the inclination angle of a swash plate. A movable body, which is part of the actuator, has a primary acting portion and a secondary acting portion. The swash plate has a primary receiving portion and a secondary receiving portion. When the inclination angle of the swash plate is maximized, the primary acting portion contacts the primary receiving portion to push the swash plate. When the inclination angle of the swash plate is minimized, the secondary acting portion contacts the secondary receiving portion to push the swash plate.
Thu, 18 Aug 2016 08:00:00 EDTThe invention relates to an axial piston pump having a swash-plate type construction, in particular for hydraulic systems, comprising a cylinder drum (3) which can be rotationally driven about a rotational axis (7) in a pump housing (1) and in which pistons (9) are arranged in an axially displaceable manner, supporting by means of the actuation end thereof (11) which is accessible from the outside of the cylinder drum (3), at least indirectly a awash plate (15), said swash plate can be pivoted by means of an adjusting device (21) to the desired angles of inclination with respect to the rotational axis (7) for adjusting, the stroke, of the piston (9) and also the fluid system pressure generated thereby. Said adjust device comprises an adjusting, piston (35) in a hydraulically actuated adjusting cylinder (31), the movement thereof can be transmitted to the awash plate (15) by means of at least one driven connection comprising a pivot joint (37, 39; 29, 43), characterized in that the pivot joint is formed by a ball joint (37, 39) which is arranged between the piston (35) and the piston and (41) of the adjusting cylinder (31).
Thu, 18 Aug 2016 08:00:00 EDTA fuel injection pump includes a plunger, a plunger barrel which supports the plunger, a body which houses the plunger and the plunger barrel, a plate which covers an opening formed on the body, a control lever turnably attached near the plate, and an adjuster bolt which abuts against the control lever to restrict turn of the control lever and is supported by a stay disposed on the plate.
Thu, 18 Aug 2016 08:00:00 EDTA pressure sensorless electronic pressure limiting and flow leveling system for an electric pump comprising a multi-mode control process for transferring fluid through a filter feeding a source consuming the fluid as the filter becomes clogged. The multi-mode control process comprising a closed loop current control mode, a pressure limiting control mode for controlling the speed of the motor as a function of a pre-calibrated profile correlating measured motor speed and voltage parameters to a predetermined value in the pre-calibrated profile utilized to set the speed of the motor driving the pump for pumping pressurized fluid through a clogging filter; and a flow leveling control mode correlating measured motor current to a predetermined value in a pre-calibrated profile utilized to set the speed of the motor driving the pump for pumping pressurized fluid as a function of clogging of the filter.
Thu, 18 Aug 2016 08:00:00 EDTA supercharger constructed in accordance to one example of the present disclosure can include a shaft portion connected to a pulley. A pair of supercharger rotors can be arranged for concurrent rotation with respective rotor shafts. A clutch rotor can be mounted to the shaft portion. The clutch rotor can rotate around a longitudinal axis. A clutch armature can be mounted to a drive shaft and unconnected to the shaft portion. The clutch armature can be configured to rotate around the longitudinal axis. The clutch rotor and the clutch armature can selectively cooperate in an engaged position and a disengaged position. In the engaged position, the clutch rotor and the clutch armature rotate together. An electric motor can have an output that provides a rotational input to one of the rotor shafts.
Thu, 18 Aug 2016 08:00:00 EDTAn electronically-controlled turbocharger (ECT) includes an electric machine provided on the shaft of the turbomachine. It is desirable to mount the electric machine on the shaft in such a way that it can be removed for servicing. Disclosed herein is an ECT in which the rotor of the electric machine is retained on the shaft by a nut that is used to snug up the rotor against a shoulder on the shaft. Alternatively, the shaft and the rotor have a taper and the nut is used to cause the interior taper of the rotor is caused to engage with the exterior taper of the shaft. In yet another alternative, the rotor has fingers that engage with splines on the shaft. In some embodiments, to help prevent relative rotation of the shaft and the rotor, one or both of mating surfaces are roughened to increase the friction between the surfaces.
Thu, 18 Aug 2016 08:00:00 EDTA diversion connector is used for a downhole pump having a plunger and a barrel in a well. The diversion connector is useful in a sandy well having particulates. The plunger has an interior and is reciprocated by a rod relative to the barrel. The connector includes one or more bodies, such as a mandrel, attaching the rod to the plunger. The mandrel has a first exterior surface and defines a fluid passage communicating with the interior of the plunger. A sleeve is disposed on the first exterior surface and has an interior surface floating relative to the first exterior surface. The floating sleeve at least partially prevents particulate uphole of the plunger from passing in a gap between the plunger and the barrel.
Thu, 18 Aug 2016 08:00:00 EDTA pumping apparatus for a water treatment plant, the pumping apparatus comprising a gas supply, at least one gas turbine 11 connected to the gas supply, the at least one gas turbine connected to drive at least one primary pump 12 through a reduction gear train 13 and clutch 14, a waste heat boiler 26 having a feed water input, the waste heat boiler having an exhaust gas input 26a to receive exhaust gas from the at least one gas turbine 11 and generate steam from the feed water, the waste heat boiler having an steam output 18, the apparatus further comprising at least one steam turbine 20, the at least one steam turbine connected to drive at least one secondary pump 21, the at least one steam turbine being connected to the steam output 18 of the waste heat boiler, the at least one steam turbine 20 further having an exhaust steam output 27, the apparatus further comprising a condensing apparatus 28 to receive steam from the exhaust steam output and generate a feed water stream at a feed water output, the feed water outlet being connected to the feed water input of the waste heat boiler 26.
Thu, 18 Aug 2016 08:00:00 EDTAn on board inert gas generation system for use in an aircraft having a source of low pressure air includes a variable speed rotary positive displacement compressor with an inlet that receives a first portion of the low pressure air and an outlet in flow communication with an air separation module; a turbine that receives a second portion of the low pressure air to extract energy to drive the compressor; a heat exchanger in a flow path between the compressor and the air separation module, the heat exchanger including a heating pass and a cooling pass, such that compressed air from the compressor is passed along the cooling pass to reduce a temperature of the compressed air supplied to the air separation module; and a duct for supplying cool ram air to the heating pass of the heat exchanger. The compressor provides variable air flow to the air separation module.
Thu, 18 Aug 2016 08:00:00 EDTA blood pump system includes a pump housing and an impeller for rotating in a pump chamber within the housing. The impeller has a first side and a second side opposite the first side. The system includes a stator having drive coils for applying a torque to the impeller and at least one bearing mechanism for suspending the impeller within the pump chamber. The system includes a position control mechanism for moving the impeller in an axial direction within the pump chamber to adjust a size of a first gap and a size of a second gap, thereby controlling a washout rate at each of the first gap and the second gap. The first gap is defined by a distance between the first side and the housing and the second gap is defined by a distance between the second side and the pump housing.
Thu, 11 Aug 2016 08:00:00 EDTWithin an ion pump, accelerated ions leave the center portion of an anode tube due to the anode tube symmetry and the generally symmetrical electric fields present. The apparent symmetry within the anode tube may be altered by making the anode tube longitudinally segmented and applying independent voltages to each segment. The voltages on two adjacent segments may be time varying at different rates to achieve a rasterizing process.
Thu, 11 Aug 2016 08:00:00 EDTAn air pump includes a barrel and a pumping device moving with respect to the barrel when the air pump is operated. A joint assembly fluidly connecting to the air pump is disposed on the barrel and includes a first hole to receive air from the air pump, a connecting device including a rotatable adaptor, and a second hole extending through the rotatable adaptor and fluidly connecting to the first hole. A pressure gauge connects to joint assembly on the rotatable adaptor, includes an air inlet hole fluidly connecting to the second hole, has a first side thereof including a first dial with a first measuring range and a second side thereof including a second dial with a second measuring range different from the first measuring range, and is rotatable between use positions thereof.
Thu, 11 Aug 2016 08:00:00 EDTA cartridge which includes a tubular body having a cylindrical surface enabling it to be inserted in a cylindrical housing in an axial direction (X), the cartridge being such that, in the tubular body, the following are integrated coaxially with one another: electrical connection method;control method;a first chamber which includes a first lateral orifice for admitting compressed air;at least a second chamber situated at a second end of the tubular body and including an air outlet orifice. the control method being suitable for selectively putting the first chamber and the second chamber in pneumatic communication so as to allow passage of air to the second chamber.