Abstract: Provided is a turbine which handles fluids having a plurality of pressures with a single or integrated turbine wheel so that the number of components is reduced, and costs are reduced.

Abstract: A pump for processing molten metal having an enlarged tubular body which houses a centrifugal lifting pump at its bottom end. The bottom end has a curved shape that aids in the formation and sustainability of: a) a forced vortex; b) a highly forced vortex; and c) a super forced vortex, depending on the application when it which receives the ejected molten metal from the lifting pump's impeller. The lifting pump is controlled to cause the vortex to climb up the inner wall of the body up to and out of an outlet formed in the upper end of the body. A recirculation centrifugal pump is mounted coaxially to and rotates with the lifting impeller.

Abstract: A fan includes at least one fan frame, at least one impeller and at least one active flow-control device. The fan frame includes at least one air inlet and at least one air outlet. The impeller is disposed in the fan frame. The active flow-control device, is disposed on the fan frame for adjusting the size of the air inlet or the size of the air outlet according to demands.

Abstract: A centrifugal fan is provided. The centrifugal fan is configured such that an impeller having a plurality of blades along a circumferential direction and disposed between a disk-shaped main plate and an annular shroud is accommodated in a casing, and that an air suctioned from a suction opening is discharged outward in a radial direction of the impeller. One ends of the blades are supported by the main plate, and the other ends of the blades are supported by the annular shroud. The annular shroud includes a curved surface formed from an outer circumferential edge toward a center thereof, and a cylindrical part connected to the curved surface at a center side. An upper end of the cylindrical part of the annular shroud passes through an opening of the casing and protrudes from the casing, and the upper end of the cylindrical part has a bell mouth shape.

Abstract: A fan module includes a housing and an impeller. The housing has an axial air inlet, a radial air inlet and at least one radial air outlet. The impeller is rotatably disposed in the housing and has a first air-guiding blade, a second air-guiding blade and a partitioning member. The partitioning member separates an interior space of the housing into a first air channel and a second air channel, and the first air-guiding blade is located in the first air channel and the second air-guiding blade is located in the second air channel.

Abstract: A turbine of a turbocharger includes a floating insert which defines a nozzle for passing a fluid and which is supported axially slidable with respect to a housing by a sliding support. Furthermore, the turbine comprises a sealing member for preventing a flow of fluid between the floating insert and the housing. The sealing member is axially expandable and has a fixed end attached to the turbine housing and an opposite movable end attached to the floating insert.

Abstract: An air mover includes a housing and an air stream generator. The housing includes an air exit, a first housing body and a second housing body symmetrical to the first housing body in size, wherein the first housing body has an perforated end panel formed at an outer side thereof. The air stream generator includes a motor coupled at an interior side of the end panel of the first housing body via a locking mechanism and a impeller being powered by the motor to generate an air stream exiting at the air exit. The locking mechanism is securely locked up the motor at the end panel of the first housing body from an exterior side of the end panel such that the motor is securely supported at the end panel of the first housing within the housing cavity.

Abstract: A multistage, centrifugal partial emissions pump with a first stage impeller, a final stage impeller, a first stage casing liner, one or more first stage discharge nozzles, a final stage casing liner, one or more final stage discharge nozzles, an interstage delivery channel liner, one or more delivery channels, and an outer pressure shell wherein the first stage casing liner and the final stage casing liner are connected by one or more fluid channels integral within a delivery channel liner, that follow an arced path directed predominantly radially inward within the interstage delivery channel liner, and the sum of the cross sectional areas of all delivery channels taken on a radial plane intersecting the delivery channels is less than the sum of cross sectional areas of the non-channel areas within the boundaries of the channels.

Abstract: A centrifugal fan is provided. The centrifugal fan is configured such that an impeller having a plural blades disposed between a disk-shaped main plate and an annular shroud along a circumferential direction is accommodated in a casing, and that an air suctioned from a suction opening is discharged outward in a radial direction of the impeller by a centrifugal force due to a rotation of the impeller, and thereby discharging the air from the casing. The casing includes an upper plate, a lower plate, and a plural supporting struts interposed between the upper plate and the lower plate, and lateral sides of the casing have only the supporting struts to form a discharge opening.

Abstract: A pond pump comprising an impeller (2) which rotates about an axis of rotation (X) within a pump housing (1). The pump housing (1) comprises a suction inlet (11) that is coaxial to the impeller (2), a pressure outlet (14) for the water that is to be conducted, the pressure outlet (14) being disposed in a radial to tangential direction relative to the impeller (2), and a counterflow plate (12) between the suction inlet (11) and the pressure outlet (14). The impeller (2) is fitted with a radially disposed disk (22) with vanes (21) that are arranged on one side thereof. The counterflow plate (12) is on the impeller side encompassing the vanes (21) while channels (23) that are formed between the vanes (21) have a cross-section which tapers from the inner radial face to the outer face.

Abstract: An electric blower includes an electric motor, a first fan, a second fan, a first casing and a second casing. The electric motor includes a motor body and a rotation shaft extending from the motor body only on one axial side of the motor body. The first fan is located to the one axial side of the motor body and defines a first axis of rotation aligned with the rotation shaft. The second fan is located to the one axial side of the motor body and further than the first fan from the motor body in an axial direction. The second fan defines a second axis of rotation aligned with the rotation shaft. The first fan and the second fan are driven by a driving force generated by the electric motor. The first fan is disposed in the first casing. The second fan is disposed in the second casing.

Abstract: A compressor of an exhaust gas turbocharger has an inlet slit, an outlet slit and the recirculation passage can formed at the same time when the compressor housing assembled. Ease of assembly and the reduction of the production cost is achieved. The structure of the inlet slit, the outlet slit and the recirculation passage can be compact and can be easily adjusted. Noises generated in the compressor impeller can be reduced without providing a noise insulation cover.

Abstract: A centrifugal compressor in which frequency of noise produced by rotation of the impeller does not resonate with natural frequency of vibration of gas in a plurality of axial slots serving to increase gas flow rate in an operation range of increased gas flow rate and broaden stable operation range in an operation range of decreased gas flow rate is provided. The axial slots are formed between the peripheral part of the inlet passage of the compressor housing by the peripheral surface of the inlet passage and an annular ring part of the housing supported by a plurality of struts extending from the peripheral surface, four or more struts are provided to support the annular ring part, and all but one are located at positions determined when all the struts are located at circumferentially equal spacing and the one strut is shifted from the positions by a certain angle.

Abstract: An impeller, for example, a guide wheel for a hydrodynamic speed variator/torque converter, including a plurality of blades. Each blade has a blade base and a blade tip area. Stiffening means are situated in at least one of the blades in at least the blade base area and/or the blade tip area.

Abstract: A method of manufacturing a pump assembly includes sand casting a pump housing with a cavity and die casting an impeller that includes pump blades and a first portion of a shroud. The pump housing may be sand cast as a one-piece component and the impeller may be die cast as another one-piece component. A pump cover is provided with a second portion of the shroud. The pump cover is inserted into the cavity so that the second portion of the shroud is adjacent to the first portion of the shroud, providing a substantially continuous surface defining flow channels through the impeller. A pump assembly manufactured according to the method is also provided.

Abstract: A blower unit includes a rotation shaft, a centrifugal fan and a casing. The centrifugal fan has blades arranged around the rotation shaft. The casing has a wall part defining an opening. The ring part has a ring shape having a center coinciding with an axis of the rotation shaft. The ring part is provided at first axial ends of the blades and support the blades. The ring part includes an arcuate wall curved in a radially inward of the centrifugal fan. The centrifugal fan is housed in the casing such that the arcuate wall of the ring part is located radially inside of the opening of the wall part.

Abstract: An exemplary compressor wheel housing for a turbocharger compressor wheel includes a substantially cylindrical shroud surface definable with respect to a radial dimension and an axial dimension along a rotational axis of a compressor wheel with an origin coincident with a z-plane of the compressor wheel wherein the axial position of the shroud surface decreases with increasing radial position to a compressor wheel blade outer edge radius and a diffuser surface extending radially outward and axially downward from the cylindrical shroud surface wherein the diffuser surface includes a minimum diffuser surface axial position at a radial position less than about 1.25 times the compressor wheel blade outer edge radius and wherein the diffuser surface includes a greater axial position at a radial position beyond that corresponding to the minimum axial position. Various other exemplary methods, devices, systems, etc., are also disclosed.

Abstract: A fan blade for heat sink fans is provided. The fan blade includes a wheel hub and a plurality of blades which is disposed around the rim of the wheel hub. The surfaces of the blade fans are designed with protruding or recessing inhibiting part. The flow rate on the blade surfaces is made unsteady by the inhibiting part as the airflow is flowing by to form a constant air flow impact and generate a boundary layer on the blades effectively. The effective second order distribution of the pressure rise is formed, and the effective working area of the fan is expanded. The improvement increases the static pressure and lowers the noise.

Abstract: A centrifugal pump mounted in an external housing. The pump has a split housing containing an impeller with outwardly extending vanes that is mounted on a drive shaft. The drive shaft at one end is mounted to a sealed bearing within the external housing and at the other end to a drive.

Abstract: A mixed flow fan assembly includes an electric motor, an impeller having a hub enclosing the motor, and a plurality of fan blades spaced circumferentially around the hub. The fan assembly also includes an axis of rotation extending through the hub, an annular venturi radially surrounding the impeller, and a mounting plate with an opening to allow for axial airflow positioned on one open end of the venturi. The venturi has at least one elongated slot to allow for radial airflow from the fan assembly, the slot being oriented substantially perpendicular to the axis of rotation and having a generally rectangular shape. Rotation of the hub and the fan blades caused by the electric motor generates both axial and radial airflow through the fan assembly.

Abstract: A centrifugal blower having at least one radial plane dividing its scroll into sub-sections which may vary as to cut-off points and axial and radial dimensions as well as axial displacement to meet requirements of individual application system flow paths.

Abstract: The present invention relates to a hydraulic pump (10) hydraulic portion body (1) capable of cooperating with a pump electric motor body (1c), said hydraulic portion body (1) including a pre-filter body (1a) comprising: an upper portion (2), and a lower portion (3), and said upper portion (2) and lower portion (3) of said pre-filter body being independent of each other and mounted in a sealed (6a) removable attachment (6b, 6c), the orientation of both of said upper portions (2) and lower portion (3) of the pre-filter body relatively to each other being adjustable in rotation relatively to each other according to several positions, preferably in at least 3 different positions, still preferably at least 4 different positions, still preferably according to any position.

Abstract: An inlet housing assembly for an Air Turbine Starter includes an outer flowpath curve of an inlet flowpath defined by a multiple of arcuate surfaces in cross-section.

Abstract: A centrifugal fan includes an impeller including a main plate rotating about a center axis and a plurality of vanes fixed to the main plate in a circumferentially spaced-apart relationship, and a bell mouth arranged at an air intake side of the impeller to define an air inlet including a portion whose inner diameter is decreased toward the impeller. Each of the vanes preferably includes a protrusion protruding toward the bell mouth and extending into the air inlet.

Abstract: A centrifugal compressor for compressing gas has a casing, a rotary shaft, an impeller, a diffuser, a first scroll, a second scroll, a first passage, a second passage, and a switching member. The rotary shaft is supported by the casing. The impeller is rotatably fixed to the rotary shaft, and sends the gas radially outward to a flow path downstream thereof. The diffuser is formed around the impeller. The first scroll is formed around the diffuser. The second scroll is formed between the diffuser and the impeller. The first passage is formed from the impeller to the first scroll through the diffuser. The second passage is formed from the impeller to the second scroll. The switching member switches the flow path between the first passage and the second passage by opening and closing the diffuser.

Abstract: A food centrifugal pump formed by stamping and welding, comprising a pump casing and a cover mounted therein, an impeller, a shaft and a motor provided on the outer side of the casing, wherein the impeller is mounted on the shaft and driven to rotate by the motor; the pump casing is provided with an inlet pipe and an outlet pipe; the impeller have a structure of half-opened type and consists of blades, a hub and a back cover plate, the front end of the blade is close to the inner side of the axial plane of the pump casing, and there is an end face seal formed therebetween; the pump casing is formed by stamping a single metal plate, the outer side of the axial plane of which is provided with an inlet pipe bracket used to support the inlet pipe, the end of which is connected to the outer side of the pump casing, the other end of which is nestedly connected to the inlet pipe and fixed thereon.

Abstract: In accordance with one embodiment, a system includes a gas turbine diffuser. The gas turbine diffuser includes an axial diffuser section including a first duct portion having an axial flow path along a centerline of the gas turbine diffuser. The gas turbine diffuser also includes an axial-radial diffuser section coupled to the axial diffuser section, wherein the axial-radial diffuser section includes a second duct portion having a curved flow path along the centerline from the axial flow path to a radial flow path and the axial-radial diffuser section excludes any turning vane in the second duct portion.

Abstract: A centrifugal blower (10) includes a casing (12) and a rotor (14) rotatable disposed in the casing. The casing includes a base plate (121), a sidewall (122) extending from the base plate and a cover (123) covering the sidewall. The sidewall is a multilayer structure and includes a first section (128a) and a second section (128c). A distance between a central axis (A) of the rotor and an inner surface of the second section is greater than that between the central axis of the rotor and an inner surface of the first section. The first section is located below a mother board (20) and the second section sits on a top surface of the motherboard when the centrifugal blower is mounted to the mother board.

Abstract: A collecting chamber of a flow machine which expands in the direction of circumference, including at least one outer shell part and a contour insert is provided. The contour insert is provided with a groove which extends in the circumferential direction and is preferably configured as a helical spiral. The contour insert, is cut from a whole unit and is delimited at one end in the circumferential direction by a bent edge so that the flow losses are minimized during the passage from the collecting chamber into a subsequent diffuser.

Abstract: A centrifugal blower includes a housing (10), a cover (30) arranged on the housing, and an impeller (20) received in a space (25) formed between the housing and the cover. The housing includes a bottom wall (11) and a sidewall (12) surrounding the bottom wall. The sidewall defines an air outlet (121) therein. The sidewall and the impeller cooperatively define an air channel (24) therebetween. The cover includes a main body (31) and a tongue (32) extending from the main body. The tongue is a V-shaped flake and adjacent to the air outlet. The tongue extends into the air channel and protrudes toward the impeller.

Abstract: A centrifugal fan includes a plurality of blades, a casing and a tongue. The casing includes a base plate perpendicular to a rotation axis of the blades and a sidewall extending upwardly from the base plate. The base plate and the sidewall cooperatively define a space for receiving the blades therein. The sidewall defines an opening in one side for functioning as an air outlet. An air channel is defined between outmost ends of the blades and the sidewall. The tongue is detachably mounted to one end of the sidewall adjacent to the air outlet. The tongue includes a guiding surface protruding towards the outmost ends of the blades. The tongues is provided for lowering a noise level of the centrifugal fan during operation.

Abstract: A compressor assembly has a fluid inlet positioned to facilitate the passage of a fluid. The compressor assembly includes a compressor housing defining a compressor inlet and an impeller rotatably supported at least partially within the compressor housing. The impeller includes an inducer portion. A fluid treatment member is disposed adjacent the compressor housing and between the compressor inlet and the inducer portion and an inlet vane assembly I disposed adjacent the compressor inlet and includes a plurality of vanes. Each of the vanes is movable between a first position and a second position to control the quantity of fluid that passes to the impeller.

Abstract: A highly efficient and long-life pump is provided through improvement of pump efficiency by extending an effective length of a blade of an impeller and through reduction of friction loss of a thrust bearing. In a pump 110, a suction direction X and a discharge direction Y of a liquid are approximately perpendicular to each other.

Abstract: An exemplary heat dissipation device includes a centrifugal fan and a fin assembly. The centrifugal fan includes a fan frame and an impeller mounted in the fan frame. The fan frame includes a base plate, a cover plate and a side wall extending between the base plate and the cover plate. An air outlet is defined in the side wall. The fin assembly is arranged at the air outlet. The cover plate defines an air inlet corresponding to the impeller and forms an air blocking portion near the air outlet. The air blocking portion defines a space therein. A total cross-sectional area of the space of the air blocking portion increases from an inner side of the air blocking portion near the impeller to an outer side of the air blocking portion near the fin assembly, so that the airflow generated by the impeller can be prevented from reflowing back to the impeller from the fin assembly.

Abstract: A centrifugal-type blower includes a shaft, a fan, and a casing. The casing includes an inlet, an air passage, and a side wall part. A first distance from a center of the fan to the wall part at an inlet side end portion in a radial direction of the fan gradually increases from a volute start part to a volute end part. A second distance from the center to the wall part at any position thereof from an intermediate position to a counter-inlet side end portion in the radial direction is larger than the first distance within a first range. The second distance gradually decreases from the volute start part to a predetermined position. The second distance has the same length as the first distance within a second range.

Abstract: An air guide apparatus includes a body installed at a discharge side of a rotary fan for sucking air, a plurality of first vanes arranged at one surface of the body to guide air sucked by the rotary fan toward the outer circumferential surface of the body, and a plurality of second vanes arranged on the other side of the body to guide air which has been guided by the first vanes from the outer circumferential surface of the body toward a central portion, formed in a spiral shape from the central portion of the body toward the outer circumferential surface of the body, and having disconnected portions formed at middle portions thereof.

Abstract: An air induction system consisting of a cylindrical main flow tube, a helical vane disposed within the main flow tube, and, preferably, a noise absorbing perforated tube disposed within the main flow tube in concentric relation to the helical vane. The twist direction of the helical vane provides air flow rotation in the same direction of rotation as the turbine wheel. The helical vane causes noise reflection and enhancement of noise attenuation by the perorated tube and its adjoining one or more acoustic cavities.

Abstract: A turbocharger (10) for an internal combustion engine includes a compressor (12) having an impellor (16) disposed in a compressor chamber (18). The compressor chamber (18) receives fluid flow. A flow regulation mechanism (30) is disposed in the compressor (12) and includes a diffuser cover (32) and a recirculation gate (36). The diffuser cover (32) is moveably disposed in a diffuser passage (34) from a first position permitting fluid flow through the diffuser passage to a second position at least partially impeding the fluid flow. The recirculation gate (36) is moveably disposed in the compressor chamber (18) from a first position closing a recirculation groove (48) to a second position opening the recirculation groove to fluid communication with the compressor chamber.

Abstract: An electronic device includes a casing, a centrifugal blower and sidewall received in the casing. The casing is adapted for accommodating electronic components therein, and includes a bottom cover and an opposite top cover. The centrifugal blower is surrounded by the sidewall and includes a sleeve directly mounted to the bottom cover, a bearing member mounted in the sleeve, a stator mounted to the sleeve and an impeller rotatably supported by the bearing member. The bottom cover of the electronic device functions as a bottom plate of the centrifugal blower.

Abstract: A reversible fan tray device is provided for a power supply unit. The fan tray device includes a mounting panel to be removably mounted to the power supply, a fan unit secured to the mounting panel to provide airflow through the electronic device, and an interconnection board secured to the mounting panel to provide an electrical connection between the fan unit and the power supply unit. The mounting panel can be positioned in either of two orientations, the first orientation to draw external air into the power supply unit and the second orientation to force internal air out of the power supply unit. The interconnection board mates with a connector on the power supply unit when the fan tray cassette is in either of the two orientations. The interconnection board provides an airflow direction indication to the power supply unit for an existing orientation of the two orientations.

Abstract: In a pressurizing centrifugal pump, tips of blades are arranged at a level lower than that of an outer circumferential surface of a blade plate by a level difference provided from the outer circumferential surface toward a central position of the blade plate. The outer circumferential surface of the blade plate is arranged close to an inner circumferential wall of a case to form a fluid control space for controlling movement of the fluid toward a rear side of the blades. A fluid passage space for promoting passage of a foreign substance in the fluid is formed between the inner circumferential wall and the tips of the blades.

Abstract: A fan includes an impeller and a housing. The housing includes a base portion and a sidewall portion disposed around and connected with the base portion. A plurality of first recesses are disposed at a connection between the base portion and the sidewall portion, and a rib is disposed between every two adjacent first recesses. The impeller includes a hub having a base portion and a wall portion disposed around and connected with the base portion, and a plurality of blades disposed on a circumference of an outer wall of the wall portion. A plurality of third recesses are disposed at a connection between the base portion of the hub and the wall portion, and a rib is disposed between every two adjacent third recesses. The recesses can prevent the impeller and the housing from the defects and shape deformation caused by injection molding during manufacturing processes, and enhance the structural strength.

Abstract: In the present invention, a partition wall which partitions a discharge port and a suction port provided on a static passage, in the rotating direction, has a discharge side shape which is identical with the shape of blades, and has a positional relationship in which the partition wall does not overlap with the discharge port in view of such a fact that the pressure variation on the suction side is higher than that of the discharge side, and noise on the suction side is dominant.

Abstract: The present invention provides a heat dissipation module and a fan thereof. The heat dissipation module includes a heatsink and a frameless fan. The fan is disposed in the heatsink. The fan includes a motor base, an impeller, a motor and at least one engaging member. The impeller and the motor are disposed on the motor base. The motor drives the impeller to rotate, and the engaging member is extended radially from the motor base. The fan is directly assembled to the heatsink via the engaging member.

Abstract: A centrifugal fan includes a casing and an impeller received in the casing. The casing defines an air outlet at one side thereof. An air channel is defined in the casing between a sidewall of the casing and outermost free ends of blades of the impeller. The air channel has an upstream end and a downstream end along a rotation direction of the impeller. A plurality of air guide plates is formed in the casing and disposed at a junction between the downstream end of the air channel and an area of the air outlet directly communicating with the downstream end of the air channel. The air guide plates are structured and arranged in a streamlined manner and pattern with respect to air flowing from the downstream end of the air channel towards the air outlet.

Abstract: A centrifugal fan. The centrifugal fan has at least one air inlet and one air outlet, and at least one set of rotor blades. A sidewall extends downward from an inner margin of the air inlet to define an air-gathering chamber in the housing of the centrifugal fan for increasing airflow pressure and heat dissipating efficiency.

Abstract: An air distribution blower housing for a furnace is designed with an enlarged air outlet opening that slows down and spreads out the air flow from the blower housing over a greater area of the furnace heat exchanger. The blower housing thereby enables less air pressure drop through the heat exchanger, which increases the efficiency of the blower motor operation. The design of the blower housing also efficiently turns the velocity head of the air flow through the housing to usable static air pressure at the housing air outlet. The enlarged air outlet opening of the blower housing is achieved without increasing the exterior diameter dimensions of the blower housing by utilizing a volute outer wall of the blower housing that has an exponentially increasing expansion angle in the direction of air flow through the blower housing.

Abstract: A pump impeller for a centrifugal pump. The impeller is defined by a shroud rotatable about an axis of rotation. At least two pump vanes extend axially from the shroud, each of the vanes configured as a blunted tear drop shape and having an inside wall and an outside wall, the leading edges of which are interconnected by a blunt wall. The trailing edges of the inside and outside walls merge together. A substantially constant width flow channel is defined between the blunted wall of one vane and a confronting surface defined by an inside wall of the other vane. The vanes are tapered in the axial directions by inclining the inside wall of each vane radially outwardly.

Abstract: An impeller plate of an impeller of a centrifugal pump, particularly a channel impeller pump, for pumping liquids with solid or gaseous admixtures, is provided with at least one wide vane that is displaced toward the impeller drive by a distance D so that the impeller chamber is enlarged by a rearward portion thereof. In addition, the impeller comprises at least one auxiliary vane having a center width at between 25%-75% of the width of the wide vane. This arrangement improves particularly the gas transporting ability of the pump.

Abstract: A feed pump with a variable-speed drive for adjustably metering a feed quantity, which is designed as a single-stage centrifugal pump with a radial wheel arranged to rotate, without a sealing gap, in an impeller chamber of a pump casing, to convey a fluid between a pump inlet and outlet. The radial wheel is connected to a variable speed drive motor having a five-digit rotational speed range, receives the flow centrally, is provided with feed ducts, and has an outside diameter of up to 50 mm, while the centrifugal pump is designed for partial-load operation, the feed quantities of which range from 0 to 3600 ml/min with lifts of 20 to 300 meters. The inside diameter of the impeller chamber is at most 4% larger than the outside diameter of the radial wheel. A seal is arranged between the impeller chamber and the radial wheel or its shaft, and the circumference of the impeller chamber is provided with one or more outlet ducts arranged at an acute angle or tangentially to the outside diameter of the radial-wheel.