Entries |
Document | Title | Date |
20080219840 | Fan Motor Assembly and Air Guide Apparatus Thereof - 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. | 09-11-2008 |
20080226447 | Removable Impeller for Fan - The invention concerns a removable impeller ( | 09-18-2008 |
20080232958 | SPIRAL BLOWER - A dryer blower for carwash facilities comprising a volute housing for an impeller having an axial intake and a tangential air outlet. The volute housing is characterized by a spiral channel of increasing cross-sectional area as a result of an increasing width and substantially constant radial dimension. The spiral housing terminates in a long, narrow output to create an air knife which effectively strips water from the surfaces of a just washed vehicle. The housing can be asymmetric or symmetric and housings can be arranged in side by side tandem to create additional length in the air outlet. | 09-25-2008 |
20080232959 | Compressor - A compressor comprises an impeller ( | 09-25-2008 |
20080260527 | Fan assembly - A centrifugal fan assembly has a fan with a number of vanes at a peripheral edge of a rotor, a motor, arranged coaxially to the inside of the rotor, that rotates the fan, and a casing that houses the fan and the motor. The casing has an air inlet in the direction of a rotating shaft of the fan, and an air outlet in a radial direction. A first part of the casing near the air inlet is arranged relatively towards a center of the casing as compared to the other part of the casing. The motor is mounted on the first part. | 10-23-2008 |
20080279681 | Centrifugal Blower - An object is to provide a centrifugal blower with reduced noise. The centrifugal blower is provided with: an impeller; a casing that houses the impeller and forms a spiral flow passage that surrounds a radial direction outside of the impeller; and a driving device that rotates the impeller about an axis. The impeller has: a bottom plate; a plurality of blades provided on a same circumference of the bottom plate; and a substantially annular plate shape shroud that has the blades interposed between it and the bottom plate, and that is disposed concentric with the bottom plate, and that connects end sections of the respective blades. The shroud has: an inclined section that comes closer to the bottom plate moving from a radial direction inside to a radial direction outside; and a shroud side barrier that rises from a position on the radial direction outside of the inclined section towards a side opposite to the bottom plate. The casing is provided with a bell-mouth that opens from a radial direction inside of the shroud to a radial direction outside, and a casing side barrier that projects to an area between the inner periphery of the shroud and the shroud side barrier. | 11-13-2008 |
20080279682 | Impeller Assembly and Method of Using Same - An impeller assembly including a pair of plates with one of the plates having a plurality of blades and an interlock structure for aligning and coupling the plates together. A disclosed example of the interlock structure includes a plurality of latch members extending from one plate and locking into apertures of the other plate. The interlock structure may also include a plurality of channels engaging the blades. The blades of the impeller may engage a pair of latch members in a saddle manner. A method of using the impeller assembly within an air blower is also disclosed. | 11-13-2008 |
20090022584 | PUMP FOR HYDROMILL - A pump for digging equipment is for the construction of diaphragms The equipment envisages in its end part drums ( | 01-22-2009 |
20090022585 | Rotor for a Rotary Machine and a Rotary Machine - The invention relates to a rotor for a rotary machine and to a rotary machine equipped with said rotor, wherein the rotor revolves in a gaseous or liquid medium and has, at least on one of its lateral surfaces, a profile with at least one convex elevation for producing a pressure difference. This rotor is characterized by the fact that the convex elevation is formed as an airfoil profile of an aircraft, and the rotor has an axial cavity on the inside. In this case, the rotor is connected to at least one chamber for guiding the medium provided in or away, wherein at least one passage opening is provided between the cavity and the outer lateral surface in the region of the airfoil profile. Such a rotor within different housing formations forms a rotary machine, which can be used as a pump, a compressor, a condenser, a blower, a turbomachine, a turbine or as a pressure neutralizer. | 01-22-2009 |
20090053053 | BLOWER - A blower includes an impeller and a housing. The housing has an accommodating portion, a throat portion and a concave portion. The impeller is disposed within the housing and rotates via the shaft. A first axial line and a second axial line are perpendicular to each other, and both intersect at a position where the shaft is located to divide the housing into four regions. Both of the throat portion and the concave portion are disposed adjacent to the outlet and disposed in the first region. | 02-26-2009 |
20090129921 | COOLING FAN HAVING PROTRUSION AT AIR OUTLET THEREOF - A cooling fan ( | 05-21-2009 |
20090155066 | Pump Driving Apparatus - A pump driving apparatus that can suppress backflow of a liquid in a pump chamber and improve pump efficiency is provided. | 06-18-2009 |
20090169373 | CENTRIFUGAL BLOWER AND BOTTOM HOUSING THEREOF - A centrifugal blower ( | 07-02-2009 |
20090169374 | Impeller for a Pump Unit and Associated Pump Unit - An impeller is provided for a pump unit, in particular for a waste water pump unit, having two cover plates ( | 07-02-2009 |
20090214334 | CENTRIFUGAL COMPRESSOR - A centrifugal compressor can be provided with which frequency of noise produced by rotation of the impeller having a plurality of blades does not resonate with natural frequency of vibration of gas in a plurality of axial slots which serve 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 resulting in reduction of noise caused by rotation of the impeller. 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 of them are located at positions which will be determined when all the struts are located at circumferentially equal spacing and one of the struts is shifted circumferentially from one of said positions by a certain central angle. | 08-27-2009 |
20090220336 | VENTILATION SYSTEM AND METHOD FOR ASSEMBLING THE SAME - A method for assembling a ventilation system is provided. The method includes providing a ventilation hood that includes a cover portion and a discharge portion extending from the cover portion. The cover portion includes a first aperture, an opposite second aperture, and a cavity therein, wherein an interior of the discharge portion is in flow communication with the cover portion cavity. The method also includes coupling a rotatable member at least partially within the ventilation hood, such that the rotatable member extends at least partially through at least one of the first and second apertures, and such that rotation of the rotatable member induces a windage-driven flow of fluid between a portion of the rotatable member and at least one of the first and second apertures. | 09-03-2009 |
20090232649 | PNEUMATIC TURBINE MOTOR AIR CHAMBER - A pneumatic turbine motor air chamber drives a pneumatic turbine to rotate through compressed air. The pneumatic turbine has a ring extended from inside thereof that has a plurality of barriers and forms a housing space to hold a speed regulator. The pneumatic turbine also has an air intake coupling hole leading to the housing space and at least one air discharge vent communicating with an air passage to discharge the compressed air. The ring is integrally formed with the pneumatic turbine to enhance operation steadiness of the pneumatic turbine. | 09-17-2009 |
20090311094 | Compact Multiphase Pump - Rotodynamic machine for compressing a multiphase fluid comprising at least one gas phase and one liquid phase. | 12-17-2009 |
20100040461 | VOLUTE FOR CENTRIFUGAL PUMP | 02-18-2010 |
20100061849 | FROTH HANDLING PUMP - A froth handling pump is provided which includes a pump casing, an impeller mounted within the casing, and a de-aeration chamber mounted to the rear side of the pump casing. The impeller comprises multiple pumping vanes, each of the vanes having an inlet angle and an outlet angle, wherein the outlet angle is greater than the inlet angle, the outlet angles terminating at a rear shroud. The rear shroud includes multiple vent holes for the passage of gasses therethrough. The de-aeration chamber, which comprises an inner volume, includes an inlet formed on the inner side for receiving gasses passing through the plurality of vent holes. At least one vent outlet is provided for the discharge of gasses from the de-aeration chamber. | 03-11-2010 |
20100068047 | CENTRIFUGAL BLOWER - A centrifugal blower includes a housing ( | 03-18-2010 |
20100092282 | CENTRIFUGAL FAN - A centrifugal fan includes a top cover plate, a bottom plate, a sidewall and an impeller. The sidewall is defined with an air outlet. The impeller includes a hub and a plurality of blades extending radially outwardly from the hub. An air passage channel is defined between outmost free ends of the blades and an inner surface of the sidewall. A tongue is provided near the air outlet and protrudes inwardly and laterally from the inner surface of the sidewall towards the outmost free ends of the blades. The tongue has an outer surface facing the outmost free ends of the blades. A plurality of grooves is defined in the outer surface along a lengthwise direction of the tongue. | 04-15-2010 |
20100221107 | DUCT FOR CHANGING DIRECTION OF FLOW, PARTICULARLY FOR TURBOCHARGER COMPRESSOR INLET - A direction changing flow duct, for example, a compressor inlet duct ( | 09-02-2010 |
20100226766 | Centrifugal Blower - It is intended to provide a centrifugal blower capable of suppressing the generation of noise including periodic noise that is caused by interference between a tongue and an impeller. The centrifugal blower is provided with an impeller ( | 09-09-2010 |
20110027078 | BLOWER - The present invention discloses a blower comprising: a snail-shaped base, a snail-shaped cover, blades and a motor, wherein the snail-shaped base and the snail-shaped cover form a exhaust channel, the blades are horizontally provided in the exhaust channel, the snail-shaped cover above the blades is provided with an air intake channel formed by a motor mounting chamber and a motor cover, and the motor is vertically disposed in the air intake channel and connected to the blades therebelow. The blower according to the present invention is structurally scientific and concise; the blades are horizontally disposed; the motor is vertically disposed above the blades in the air intake channel so that, on the one hand, when the blower operates, air is taken in and meanwhile provides effective heat dissipation for the motor, and on the other hand, there is a sufficient distance between the motor and the ground surface, and waterproof designs of the sealed capacitor junction box and both ends of the motor can perform an excellent waterproof function and avoid dangers from submergence of water. The blower according to the present invention is novelly designed, energy-saving, environment-friendly, safe for use, stable in placement and operations and long-service life. | 02-03-2011 |
20110044808 | RADIAL FAN AND A HIGH-PRESSURE CLEANING DEVICE HAVING A RADIAL FAN - Proposed is a centrifugal fan with a pot-like impeller ( | 02-24-2011 |
20110058938 | CENTRIFUGAL FAN - A centrifugal fan includes an impeller and a housing receiving the impeller therein. The impeller includes a hub and blades extending radially from the hub. The housing includes a bottom wall, a sidewall extending upwardly from the bottom wall and a bracket for supporting the impeller thereon. The bottom wall defines an air inlet therein. A plurality of protruding posts extend downwardly from a bottom surface of the bottom wall around the air inlet. Each of the protruding posts defines a screw hole therein. The bracket is located in the air inlet. The bracket defines a plurality of through holes corresponding to the protruding posts respectively. The protruding posts of the bottom wall are respectively inserted into the through holes of the bracket. A plurality of bolts are respectively screwed into the screw holes of the protruding posts to connect the bracket and the bottom wall together. | 03-10-2011 |
20110064571 | Secondary Inlet Cone for a Plenum Fan - A plenum fan comprising a fan wheel disposed within a box-like enclosure includes a secondary inlet cone, a primary inlet cone, and a flexible duct. The two inlet cones convey air to the mouth of the fan wheel. A frame supports the fan wheel and the primary inlet cone such that the frame, the fan wheel and the primary inlet cone comprise a fan assembly. If the fan assembly shifts due to fan thrust or vibration, the fan assembly moves as a unit. The flexible duct connects the primary inlet cone to an inlet of the enclosure while isolating the fan assembly's vibration from the enclosure. The secondary inlet cone extends from the inlet of the enclosure, protrudes into or toward the primary inlet cone and provides a smooth airflow path over the abrupt shape of the flexible duct. | 03-17-2011 |
20110076141 | COMPRESSOR COVER FOR TURBINE ENGINE HAVING AXIAL ABUTMENT - A centrifugal compressor for a turbine engine, including a cover with an upstream end and a downstream end; a casing presenting an upstream edge and a downstream edge; and a bladed impeller mounted to rotate in the casing. The cover covers the blades of the impeller to define an outside surface of a gas-flow passage extending between the upstream and downstream edges of the casing, while being fastened to the upstream edge of the casing via its upstream end while its downstream end remains free. The cover further includes an abutment limiting axial movement of its downstream end relative to the downstream edge of the casing while the compressor is in operation. | 03-31-2011 |
20110091319 | CENTRIFUGAL WATER PUMP - A centrifugal water pump for use in a diesel engine cooling system provides an improved water pump construction including multiple features which combine to provide increased operating life for the supporting and wearing components of the pump. The improvements include one or more of: a water seal system is provided having a stationary seal and a rotating seal made of silicon carbide with at least one of the seals having embedded lubricant; an o-ring added to the stationary seal ensures that pressurized water does not get past the stationary seal; metallic bearing seals and covers to prevent leeching of the lubricant from the bearing; optimized spring force on the rotating seal; tapered shaft impeller interface to minimize torsional stresses on these components from the keyway design of the prior art; and the housing engine oil inlet is removed to prevent the direct flow of hot, dirty, and contaminated oil from damaging the water pump bearings. | 04-21-2011 |
20110129337 | CENTRIFUGAL PUMP - A centrifugal pump comprises: a motor having an output shaft, a volute mounted at one side of the motor and an impeller which is located inside the volute and attached to the output shaft. The volute has an inlet arranged along the axial direction, an outlet arranged along the lateral direction and a flow channel arranged along the circumferential direction. The flow channel has a spiral shape. The cross-sectional area of the flow channel increases towards the outlet. | 06-02-2011 |
20110142611 | COUNTER-ROTATING AXIAL FLOW FAN - A counter-rotating axial flow fan with improved characteristics and reduced noise compared to the related art can be provided. Defining the number of front blades as N, the number of stationary blades as M, and the number of rear blades as P, and defining the maximum axial chord length of the front blades as Lf, the maximum axial chord length of the rear blades as Lr, the outside diameter of the front blades as Rf, and the outside diameter of the rear blades as Rr, the counter-rotating axial flow fan satisfies the following two relationships: N≧P>M; and Lf/(Rf×π/N)≧1.25 and/or Lr/(Rr×π/P)≧0.83. | 06-16-2011 |
20110142612 | COUNTER-ROTATING AXIAL FLOW FAN - A counter-rotating axial flow fan in which the shape of stationary blades of a middle stationary portion is optimized to reduce noise is provided. Defining the maximum axial chord length of front blades as Lf, the maximum axial chord length of rear blades as Lr, and the maximum axial chord length of stationary blades as Lm, a relationship of Lm/(Lf+Lr)<0.14 is satisfied. Defining the maximum dimension between the blade chord for lower surfaces of the stationary blades and the lower surfaces as K | 06-16-2011 |
20110158796 | COLLECTING CHAMBER AND PRODUCTION PROCESS - 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. | 06-30-2011 |
20110164968 | IMPELLER FOR CENTRIFUGAL PUMP AND PUMP INCLUDING THE SAME - A centrifugal pump impeller | 07-07-2011 |
20110194931 | CENTRIFUGAL COMPRESSOR DIFFUSER VANELET - A system, in certain embodiments, includes a centrifugal compressor diffuser including a flow path having a first surface and a second surface defining opposite axial sides of the flow path. The centrifugal compressor diffuser also includes multiple vanes extending from the first surface to the second surface of the flow path. A first profile of each vane varies along an axial direction. The centrifugal compressor diffuser further includes multiple vanelets extending from the first surface toward the second surface in the axial direction. A first axial extent of each vanelet is less than a second axial extent of the flow path. In addition, a second profile of each vanelet varies along the axial direction and/or the vanelets form a non-periodic pattern around a circumference of the flow path. | 08-11-2011 |
20110280718 | PRESSURIZING CENTRIFUGAL PUMP - 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. | 11-17-2011 |
20110299981 | Induction System with Air Flow Rotation and Noise Absorber for Turbocharger Applications - 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. | 12-08-2011 |
20110305562 | PUMP AND HEAT PUMP APPARATUS - 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 | 12-15-2011 |
20120045323 | FAN - 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. | 02-23-2012 |
20120121400 | COMPRESSOR OF EXHAUST GAS TURBOCHARGER - 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. | 05-17-2012 |
20120134795 | CENTRIFUGAL FAN - 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. | 05-31-2012 |
20120141264 | Air mover - 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. | 06-07-2012 |
20120156024 | Fan Module - 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. | 06-21-2012 |
20120156025 | CENTRIFUGAL FAN - 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. | 06-21-2012 |
20120163966 | RADIAL TURBINE - 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. Provided is an expansion turbine ( | 06-28-2012 |
20120171026 | CENTRIFUGAL FAN, MOLDING DIE, AND FLUID FEEDER - A centrifugal fan includes a plurality of fan blades circumferentially spaced apart from each other. The fan blade has a front edge portion to which air flows in a rear edge portion from which air flows out, and a blade surface extending between the front and rear edge portions. The blade surface includes a pressure surface on the rotation direction side of the centrifugal fan and a suction surface arranged on the back side of the pressure surface. The fan blade has a cross-sectional shape with concave portions formed at the pressure surface and the suction surface. Such a fan has an excellent blowing capacity. A molding die for use in production of the centrifugal fan, and a fluid feeder provided with the centrifugal fan are disclosed. | 07-05-2012 |
20120189439 | FAN ASSEMBLY - A fan assembly includes a channel structure and a centrifugal fan. The channel structure includes a housing and at least a slit. The housing has an accommodating space and a flow channel adjacent to each other. The slit is extended along the flow channel. The flow channel is communicated with the outside of the housing via the slit. The centrifugal fan is disposed in the accommodating space. The centrifugal fan draws air along an axial direction and generates an airflow. The airflow flows into the flow channel along a radial direction, and flows out to the outside of the housing via the slit. | 07-26-2012 |
20120195747 | CENTRIFUGAL FAN - 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 housed in a casing configured by an upper casing and a lower 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. The shroud has a curved surface formed from an outer edge portion toward a center thereof. The shroud has a plurality of protrusions which are formed on the surface of the shroud such that a gap is formed between each of the protrusion portions and the upper casing. | 08-02-2012 |
20120230817 | CENTRIFUGAL COMPRESSOR AND TURBOCHARGER - A centrifugal compressor is provided with: a housing which houses a compressor wheel therein; a spiral scroll arranged in an outer periphery of the compressor wheel; and a diffuser portion provided as a path space communicating with the scroll from an outlet side of the compressor wheel and formed by a compressor housing and a center housing. The centrifugal compressor is also provided with a movable vane which is movable between a projecting position where the movable vane projects from the compressor housing and a housing position where the movable vane houses in a housing portion provided in compressor housing, and an actuator which drives the movable vane between the projecting position and the housing position. The actuator is provided in the center housing. | 09-13-2012 |
20120275915 | CENTRIFUGAL FAN - A centrifugal fan includes an upstream side impeller, a downstream side impeller, a motor, and a housing arranged to accommodate the upstream side impeller, the downstream side impeller, and the motor. The housing includes a first intake port through which a gas is drawn from an outside, an exhaust port through which the gas is discharged to the outside, and a flow path defined within the housing to bring the first intake port and the exhaust port into communication with each other. The flow path includes a first wind tunnel portion positioned below the upstream side impeller to extend in a circumferential direction and arranged to receive a gas stream from the upstream side impeller and a second wind tunnel portion positioned above the downstream side impeller to extend in the circumferential direction and arranged to receive a gas stream from the downstream side impeller. | 11-01-2012 |
20120294712 | TURBOCHARGER AND WHEEL HOUSING - A turbine housing of a turbocharger is formed by joining a scroll body with a base body. An exhaust passageway is formed between the scroll body and the base body. At the joint portion between the scroll body and the base body, an inside corner portion is formed by an inner peripheral surface of the scroll body that faces the exhaust passageway, and an outer peripheral surface of the base body that also faces the exhaust passageway. An inside fillet that is shaped to change the direction of exhaust gas along the inner peripheral surface of the scroll body to a direction along the outer peripheral surface of the base body is formed on the inside corner portion. | 11-22-2012 |
20130004307 | IMPELLER AND CENTRIFUGAL FAN HAVING THE SAME - An impeller and a centrifugal fan having the same are provided. The impeller includes a lower shroud, an upper shroud, and a plurality of blades which are arranged along a circumference direction between the lower shroud and the upper shroud. The impeller is rotatable around a rotary shaft. An outside diameter of the lower shroud is equal to or smaller than an inside diameter of the upper shroud. An inside portion of each of the blades has an inclined portion which connects an inside circle portion of the upper shroud and an inside circle portion of the lower shroud. | 01-03-2013 |
20130022455 | Pump - A radial pump for fluids has a central water inlet that leads to a rotating impeller that is enclosed by an annular pump chamber extending radially outside the impeller and from which leads a water outlet. An intermediate wall is arranged in the pump chamber which is of an encompassing design and divides the pump chamber into an annular inner region, lying radially on the inside, and an annular outer region, lying radially on the outside. These regions, at one end of the pump chamber that is remote from the impeller, merge into each other through openings in the intermediate wall, wherein the water outlet projects from the outer region. | 01-24-2013 |
20130039751 | CENTRIFUGAL FAN - A centrifugal fan is provided. The centrifugal fan includes a housing, a driving device, and blades. The housing includes a circular base and at least two struts. Each of the struts physically connects the circular base and the remainder of the housing, and each of the struts includes two peripheral edges. The driving device is placed on the circular base. Each of the blades has an arc shape and the blades are located in the housing. The driving device rotates the blades. The two peripheral edges of each of the struts form orthogonal curves with the blades. | 02-14-2013 |
20130039752 | CENTRIFUGAL FAN MODULE, HEAT DISSIPATION DEVICE HAVING THE SAME AND ELECTRIC DEVICE HAVING THE HEAT DISSIPATION DEVICE - A centrifugal fan module, a heat dissipation device having the same and an electric device having the heat dissipation device are provided, in which the heat dissipation device includes a fin module and a centrifugal fan module including a volute-shaped frame and a centrifugal fan pivoted in the volute-shaped frame. The volute-shaped frame includes an air inlet, a larger air outlet and a smaller air outlet. The air inlet and the smaller air outlet are both on the same surface of the volute-shaped frame. The larger air outlet is coupled to the fin module. The smaller air outlet is arranged correspondingly to a maximum wind-speed flowing path of the centrifugal fan. | 02-14-2013 |
20130064660 | Centrifugal Fan Assembly - The present invention relates to a centrifugal fan assembly and a HVAC-system, comprising a housing, a blower wheel comprising a plurality of fan blades, the blower wheel being rotatably mounted in the housing and constructed to generate an airflow flowing axially into the blower wheel and radially out from the blower wheel, a guiding vane device including a plurality of guiding vanes, the guiding vane device being coupled to the blower wheel and configured to guide the airflow into the blower wheel. | 03-14-2013 |
20130094954 | BLOWER DEVICE - A blower device includes a centrifugal fan rotor arranged to blow-out indrawn air in a direction orthogonal to an indrawing direction, and a motor arranged to rotate the centrifugal fan rotor. The centrithgal fan rotor has a motor cover in proximity to an external peripheral surface of the motor. Openings are provided at a lower part of the motor cover and a motor-cooling air passage is formed such that some of the air blown out from the centrifugal fan rotor is led to a motor-surrounding space formed between the centrifugal fan rotor and the motor and then is discharged through the openings. | 04-18-2013 |
20130115071 | Pump with Hydraulic Isolator - Embodiments of the invention provide a hydraulic isolator to split a volute of a pump into two compartments. The hydraulic isolator is positioned within the volute and includes an inlet positioned around a volute inlet channel of the pump, and an outlet positioned adjacent to an outlet channel of the pump. The hydraulic isolator also includes a toroidal portion to at least partially surround an impeller of the pump. | 05-09-2013 |
20130156568 | ELECTRONIC DEVICE WITH FAN - An electronic device includes a casing and a fan received in the casing. The fan includes a cover plate, a bottom plate and a side wall. An air outlet is defined in the side wall. The bottom plate defines an air inlet. The casing includes a bottom cover and a top cover. The bottom cover includes a base plate, and a side plate extending upwardly from a periphery of the base plate. The bottom plate includes a horizontal first area and a second area inclining relative to the first area. A height of the base plate relative to a horizontal plane gradually increases from one side of the casing to another side of the casing. A height of the second area relative to the horizontal plane also gradually increases from the one side of the casing to another side of the casing. | 06-20-2013 |
20130156569 | CENTRIFUGAL FAN DEVICE - A centrifugal fan device includes an impeller supported to rotate about a center axis extending in an up-down direction; a motor arranged to rotate the impeller; and a housing arranged to surround the impeller. The housing includes an intake portion positioned above the impeller and an exhaust portion positioned radially outward of the impeller. The impeller includes a base extending in a direction orthogonal to the center axis, a ring-shaped shroud positioned above the base and having a diameter which decreases as it goes upward, and a plurality of blades arranged between the base and the shroud. The housing further includes a plurality of ribs protruding from an inner surface of the intake portion toward the shroud. | 06-20-2013 |
20130189094 | MULTISTAGE COMPRESSOR WITH IMPROVED MAP WIDTH PERFORMANCE - A compressor typically for use in a turbocharger comprises a downstream radial compressor impeller wheel, an upstream axial compressor impeller wheel and an intermediate stator. The compressor housing has an inlet with inner and outer walls that define between them an MWE gas flow passage. An upstream opening defined by the flow passage provides communication between said passage and the intake and at least one first slot downstream of the upstream opening provides communication between the passage and the inner surface of the inner wall. The stator comprises a plurality of fixed vanes and is disposed in the inner wall of the inlet between the radial and axial impeller wheels. The position of the slot can be at one of several positions along the gas flow passage, hi other embodiments there are second and third slots and the flow passage is divided into two parts. All the arrangements are designed to improve the compressor map width. | 07-25-2013 |
20130209245 | BLOWER ASSEMBLY - A blower assembly for use in a vehicle is disclosed, wherein the blower assembly includes a housing and a fan wheel disposed in the housing. A scroll duct formed in the housing axially and radially expands from a scroll cutoff towards an air outlet. The fan wheel includes a hub, concentrically arranged inner and outer annular rings, and an array of spaced apart blades extending between the hub and the annular rings. | 08-15-2013 |
20130236303 | CENTRIFUGAL FAN - A centrifugal fan may include an impeller arranged to rotate about a rotation axis, an impeller case arranged to accommodate the impeller, a motor arranged to rotate the impeller, and a motor case arranged to accommodate the motor. The impeller may include a boss portion joined to a shaft arranged to rotate about the rotation axis, a hub arranged to extend radially outward from the boss portion, and a plurality of blades. Each blade may be arranged to extend radially outward. An inner wall of the impeller case may include an inside surface extending radially outward along an upper end portion of each blade. A side end portion of an air inlet defined in a central portion of the impeller case may include a curved surface projecting radially inward. | 09-12-2013 |
20130280057 | TURBINE ASSEMBLY - A turbine assembly is provided assembly having rotor defines a plurality of recesses disposed about an axis of rotation (Ar). Each of the recesses having a wide end and a narrow end. The recesses are disposed in the alternating orientations such that the wide ends and the narrow ends of the adjacent recesses are proximate to one another to minimize wake turbulence, thereby optimizing efficiency. | 10-24-2013 |
20130315724 | CENTRIFUGAL FAN WITH AXIAL-FLOW WIND - A centrifugal fan with axial-flow wind includes a centrifugal fan wheel and a cover shell. The centrifugal fan wheel has a rotating core structure and a plurality of centrifugal vanes arranged around the rotating core structure; a circular wind guide surface is disposed on an internal side of the cover shell and around the rotating core structure and covered onto the centrifugal vanes, such that the circular wind guide surface can change a centrifugal airflow at the external periphery of the centrifugal vane into an axial-flow airflow. | 11-28-2013 |
20130336774 | CENTRIFUGAL PUMP AND A DOUBLE BENT ROTOR BLADE FOR USE IN SUCH A CENTRIFUGAL PUMP - The invention relates to a centrifugal pump ( | 12-19-2013 |
20140030082 | AIR DELIVERY DEVICE - The present invention concerns an air delivery device with an impeller mounted rotationally about the axis of rotation, designed for essentially axial intake of air and essentially radial expulsion of air relative to the axis of rotation, and which is arranged in a housing that has at least one intake opening and at least one blowing opening. | 01-30-2014 |
20140044534 | CENTRIFUGAL FAN - A centrifugal fan includes a casing having an upper casing and a lower casing, and an impeller disposed between the upper and lower casing. The impeller includes an upper shroud having an upper portion formed with an inlet, a lower shroud, and a plurality of blades arranged along a circumference direction between the upper shroud and the lower shroud. The lower shroud is provided only on a portion at a side of a rotation axis of the impeller such that at least an outer circumferential side portion of each blade faces an upper surface of the lower casing. A surface of the lower casing, which faces the impeller, configures a portion of a wall surface which guides the fluid introduced from the inlet. Each blade has a shape which becomes thinner as increasing a distance from the upper shroud in a direction parallel to the rotation axis. | 02-13-2014 |
20140079541 | ELECTRONIC DEVICE - A centrifugal fan includes a housing and a fan body. The housing includes an upper cover and a lower cover. The fan body is disposed in the housing and includes a hub and at least a blade. The hub is pivotally connected to the lower cover. The blade includes an air intake portion and an air exhaust portion. The air intake portion is connected to the peripheral edge of the hub. The air exhaust portion is connected to the air intake portion and is disposed between the upper cover and the lower cover. The width of the air exhaust portion is gradually reduced along a direction away from the air intake portion. | 03-20-2014 |
20140086736 | ROTODYNAMIC PUMP FOR VARIABLE OUTPUT FLOW - A pump varies output flow. For all cross-sections, which are vertical to the axis of rotation between axial outer positions for the cross-sectional areas of flow at the periphery of the impeller, the inner wall of the pump housing forms approximately circular profiles. The approximately circular profiles are mainly concentric and have a continuously increasing radius from one toward the other one of the axial outer positions. A tongue, which truncates the outlet or diffuser of the pump from an annulus of the pump housing, does not contact the circular profiles between the axial outer positions. | 03-27-2014 |
20140093366 | CENTRIFUGAL FAN - A centrifugal fan includes an impeller, and a lower casing provided below the impeller. The impeller includes an upper shroud having an upper portion formed with an inlet, a lower shroud, and a plurality of blades arranged along a circumference direction between the upper shroud and the lower shroud. The blades extend from an inner side area to an outer side area in a radial direction, and are only connected to the lower shroud with the inner side area such that at least an outer circumferential side portion of each blade faces an upper surface of the lower casing. A surface of the lower casing, which faces the impeller, configures a portion of a wall surface which guides the fluid introduced from the inlet. A surface of each blade at a side of a leading edge portion is formed with a discontinuous portion having a step shape. | 04-03-2014 |
20140099197 | CENTRIFUGAL FAN WITH ANCILLARY AIRFLOW OPENING - An exemplary centrifugal fan includes a housing and an impeller received in the housing. The housing defines an air inlet and an air outlet thereof. Airflow driven by the impeller flows out of the housing via the air outlet. The housing further defines an opening adjacent to one end of the air outlet. The ambient air out of the centrifugal fan enters the housing via the opening, and flows out of the housing via the air outlet. | 04-10-2014 |
20140127009 | CENTRIFUGAL FAN, HOUSING COMPONENT CAST, AND METHOD OF MANUFACTURING HOUSING COMPONENT - A centrifugal fan according to a preferred embodiment of the present invention includes an impeller, a motor portion, and a housing. The housing includes an upper plate portion, a lower plate portion, and a side wall portion. The upper plate portion or the lower plate portion includes an air inlet. One of the upper and lower plate portions and the side wall portion together define a single housing component molded by casting. A portion of the one of the upper and lower plate portions which is along a boundary between the side wall portion and the one of the upper and lower plate portions defines an increased thickness portion arranged to have an axial thickness greater than that of a remaining portion of the one of the upper and lower plate portions. | 05-08-2014 |
20140133974 | COOLING FAN AND COOLING DEVICE WITH COOLING FAN - A cooling fan includes a frame and a fan body. A bottom end of the frame forms a pressed portion that borders an air inlet. The pressed portion increases the size of the air inlet allowing more air to flow to better cool an electronic device. | 05-15-2014 |
20140219789 | Centrifugal Fan - A centrifugal fan includes a fan frame, a stator assembly and an impeller. The fan frame has a base plate portion, a cover plate portion and a lateral wall portion. The cover plate portion has an air inlet, and the lateral wall portion has an air outlet. The impeller includes a rotating member, a plurality of blades and a connection ring. The rotating member is coupled with the stator assembly. Each blade has a windward edge and a lateral edge. The windward edge faces the air inlet, the lateral edge faces the lateral wall portion, and the connection ring is arranged on the windward edges of the blades. The windward edge has a first coupling edge, and the connection ring has a second coupling edge. A part of the windward edge between the first coupling edge and the lateral edge extends downwards in a curved manner, forming a truncating portion. | 08-07-2014 |
20140248141 | Turbocompressor and Use - A radial turbocompressor having at least two compressor stages is provided. A motor is co-axially located on a shaft with radial impellers of the compressor stages, and the motor and the compressor stages are arranged in a common, vertically-split housing. The medium to be compressed enters the housing through an intake opening in the housing, flows past and/or through the motor, and then is compressed in the compressor stages. The medium leaves the housing through an discharge opening that is arranged co-axially with the shaft, thereby minimizing axial forces in the turbocompressor. | 09-04-2014 |
20140271167 | Multi-Stage Radial Flow Turbine - A multi-stage radial turbine for usage in energy capture from fluid streams with low to moderate relative speed. | 09-18-2014 |
20140314558 | CENTRIFUGAL FAN - A centrifugal fan includes a shell, an impeller, a tongue portion, and a protrusion. The shell includes a top plate, a bottom plate, and a sidewall connecting to the top plate and the bottom plate. The top plate, the bottom plate, and the sidewall define an air outlet. The impeller is disposed in the shell. The tongue portion is disposed in the shell and neighboring the air outlet. The protrusion is disposed on an inner wall of the shell and is physically connected to the top plate and the bottom plate. | 10-23-2014 |
20140341727 | Centrifugal Compressor With Casing Treatment For Surge Control - A centrifugal compressor for compressing a fluid comprises a compressor wheel having a plurality of circumferentially spaced blades, and a compressor housing in which the compressor wheel is mounted. The compressor housing includes an inlet duct through which the fluid enters in an axial direction and is led by the inlet duct into the compressor wheel, and a wheel shroud located radially adjacent the tips of the blades. The wheel shroud has a port for bleeding off a portion of air flowing through the compressor. The bleed air enters an annular space, flows forward, and is injected back into the inlet flow through a plurality of circumferentially spaced slots defined through the wheel shroud. The slots are open at a leading edge of the wheel shroud. | 11-20-2014 |
20140348646 | CENTRIFUGAL FAN AND FAN FRAME THEREOF - A fan frame of a centrifugal fan comprises a housing and an inlet structure. The housing includes an opening. The inlet structure is disposed at the opening and includes a top portion and an edge portion. The top portion is disposed around the opening and includes a plurality of first chamfering angles, at least one of the chamfering angles is different from the others. The edge portion extends from the top portion to the inside of the housing through the opening and includes a plurality of second chamfering angles. A centrifugal fan including the fan frame is also disclosed. | 11-27-2014 |
20150016981 | CENTRIFUGAL FLUID MACHINE - A centrifugal fluid machine includes an impeller ( | 01-15-2015 |
20150050136 | AIR INTAKE DUCT STRUCTURE FOR CENTRIFUGAL FLUID MACHINE - An object is to provide an air intake duct structure for a centrifugal fluid machine, capable of swirling the fluid introduced into the impeller in the reverse direction to increase the pressure ratio when the flow rate is high and swirling the fluid in the forward direction to avoid a surging when the flow rate is low, as well as securing a wide operating range, without using mechanical means. The centrifugal fluid machine | 02-19-2015 |
20150071774 | CENTRIFUGAL PUMP - A volute of a centrifugal pump includes a proximate section. The proximate section includes: an outer peripheral portion having a tapered shape such that, within a range of a rotational trajectory of each of vanes provided on an impeller, the outer peripheral portion gradually spreads out in a direction axially away from the vane; and an inner peripheral portion having a tapered shape such that, within the range of the rotational trajectory of each of the vanes, the inner peripheral portion tapers in the direction axially away from the vane. The inner and outer peripheral portions are spaced apart from each other with a flat proximal opposed surface portion therebetween. The opposed surface portion is opposed to respective axial end surfaces of vanes of the impeller. The volute also includes a peripheral wall surrounding the peripheral surfaces of the vanes. | 03-12-2015 |
20150071775 | FAN UNIT AND AIR CONDITIONER - A fan unit includes a fan case, a partition member and a centrifugal fan. The fan case has an inflow port and a blowout port. The fan case includes a unit connecting portion for connecting the heat exchange unit. The partition member partitions an inside of the fan case into an upstream side space and a downstream side space. The partition member has an opening for allowing the upstream side space and the downstream side space to communicate with each other. The centrifugal fan includes an impeller including a plurality of backward curved blades. The centrifugal fan is arranged such that the impeller is located in the downstream side space and sucks air in the upstream side space through the opening. The blowout port is located on an outer side in a radial direction of the impeller in the downstream side space. | 03-12-2015 |
20150093240 | MECHANICAL COOLANT PUMP - A mechanical coolant pump for an internal combustion engine includes a pump housing defining an outlet volute, a first outlet channel comprising a first valve opening, a second outlet channel comprising a second valve opening, an impeller pump wheel, and an outlet valve arrangement. The second outlet channel is separate from and fluidically parallel to the first outlet channel. The impeller pump wheel pumps a liquid into the outlet volute. The outlet valve arrangement is fluidically upstream of the first outlet channel and the second outlet channel. The outlet valve arrangement comprises an integral valve body which pivots between an open position and a closed position. The valve body comprises a first retaining section and a second retaining section. When the valve body is in the closed position, the first retaining section completely closes the first valve opening and the second retaining section only partially closes the second valve opening. | 04-02-2015 |
20150104301 | MOTOR HOUSING FOR A CABIN AIR COMPRESSOR - motor housing for a cabin air compressor includes a central body portion having a center wall thickness and an internal cavity that is configured to receive an electric motor, a first end portion having a second internal cavity that is configured to receive a first end winding of the stator, and a second end portion having a third internal cavity configured to receive a second end winding of the stator. A ratio of a wall thickness of either of the first or the second end portions to the motor wall thickness is at least greater than 1.68 to 1. | 04-16-2015 |
20150118037 | CENTRIFUGAL FAN - There is provided a centrifugal fan including a casing having an upper casing with an opening and a lower casing with a recess, a motor disposed in the recess, and an impeller housed in the casing. The impeller includes an annular shroud formed with an inlet, plural blades which are arranged between the annular shroud and the lower casing, and a hub which is connected to respective inner sides of the blades. Each of the blades includes, at a pressure surface side, a first inclined surface which is inclined toward a negative pressure surface of the blade as approaching the lower casing from the annular shroud; and a second inclined surface which is provided closer to the lower casing than the first inclined surface, and is inclined toward the negative pressure surface at an angle steeper than that of the first inclined surface. | 04-30-2015 |
20150147167 | VENTILATION UNIT - A ventilation unit for generating an air flow comprises a centrifugal rotor able to rotate about an axis of rotation, a diffuser comprising a first and a second outlet, the outlets being positioned on opposite sides of the centrifugal rotor and delimiting a blowing duct; the centrifugal rotor is inserted in the blowing duct and is aligned with the first outlet and with the second outlet according to a main axis which is perpendicular to the axis of rotation. | 05-28-2015 |
20160044867 | BLOWER ATTACHMENT FOR A LAWNMOWER - A blower attachment for a lawnmower. The blower attachment includes an impeller and a shroud that are attachable to the lawnmower deck or undercarriage. The shroud includes a disc-shaped bottom portion defining a reduced-diameter opening. The impeller is centrally positioned over the reduced-diameter opening. Rotation of the impeller draws air through the reduced-diameter opening before being discharged from the lawnmower for the removal of debris from a lawn surface. | 02-18-2016 |
20160053773 | CENTRIFUGAL FAN - A centrifugal fan includes: a casing having an upper casing with an air suction opening, a lower casing, and a plurality of support members disposed between the lower casing and the upper casing with air discharge openings provided between the support members; an impeller disposed between the upper and lower casings, and including an annular upper shroud provided on an upper casing side, a base plate integrally formed with the annular upper shroud, and a plurality of blades arranged along a circumferential direction between the annular upper shroud and the base plate; and a fan motor which rotates the impeller. A plurality of recesses are provided on the upper surface of the upper casing, and formed to surround the air suction opening, and a plurality of ribs are radially provided around the air suction opening and between the adjacent recesses. | 02-25-2016 |
20160076551 | IMPELLER AND FLUID MACHINE - Provided is an impeller and a fluid machine which have an annular hub ( | 03-17-2016 |
20160195107 | Diffuser for a Forward-Swept Tangential Flow Compressor | 07-07-2016 |
20170234318 | ELECTRIC BLOWER | 08-17-2017 |
20180023412 | RADIAL CENTRIFUGAL TURBOMACHINE | 01-25-2018 |
20180023587 | Centrifugal Fan | 01-25-2018 |
20190145422 | MACHINE AND PROCESS FOR FILTERLESS WET REMOVAL OF PARTICLES FROM AND HUMIDIFICATION OF AIR | 05-16-2019 |