Class / Patent application number | Description | Number of patent applications / Date published |
416185000 | Circumferentially and radially continuous web or end plate | 69 |
20080199319 | Water Pump Impeller - The invention refers to an impeller, consisting of plastic, which Is intended for a coolant pump of an internal combustion engine. The impeller, which has a multipart construction, comprises a back wall, which is connected in one piece to guide vanes and also to a hub, and also a separate molded disk which on the end face partially covers the guide vanes in the installed state. The components, the back wall and the molded disk are positionally fixed by means of a materially bonding connection. | 08-21-2008 |
20080219847 | Method and apparatus for propelling an intercepted fluid - An apparatus that is rotatable around a first axis to propel an intercepted fluid in a radial direction. The apparatus has a support capable of being rotated around the first axis, a first blade assembly, and a second blade assembly. The first blade assembly has a first blade with a first substantially flat surface residing in a first plane that is substantially parallel to the first axis. The second blade assembly has second and third blades respectively having second and third substantially flat surfaces residing respectively in second and third planes, each extending substantially parallel to the first axis with the second blade assembly in an operative position on the support. A single piece defines at least a part of the second and third substantially flat surfaces. The second blade assembly is separate from the first blade assembly and joined to the support in the operative position so that the first, second and third blades cooperatively propel intercepted fluid in a radial direction relative to the first axis as the apparatus is rotated around the first axis. | 09-11-2008 |
20080232967 | Centrifugal Fan - The invention relates to an impeller device ( | 09-25-2008 |
20080292464 | Radial Fan Impeller - The invention relates to a radial fan impeller ( | 11-27-2008 |
20090028710 | Fan blade - The present invention relates to a fan impeller structure, which includes a hub having a plurality of blades distributed around the periphery of the hub in a radial manner. The blade has a windward surface and a leeward surface; at least a flow-guiding section is disposed on the leeward surface and is preferably located near the end portion of the outer edge of the blade and is mounted in parallel to the radial direction of the fan impeller. Therefore, when air is sucked in from the top and bottom sides of the blade respectively, the heat-dissipation performance loss resulting from the mutual collision of the air flow is avoided due to the flow-dividing and flow-guiding effect of the flow-guiding section. | 01-29-2009 |
20090104036 | TURBINE ENGINE WHEEL | 04-23-2009 |
20090129929 | Coaxial rotor system for helicopters - An improved coaxial rotor assembly for a helicopter includes an upper rotor system having a multiple of upper rotor blades each having outer tips and mounted on and extending outwards from a central rotor shaft and a lower rotor system having a multiple of lower rotor blades each having outer tips and mounted on and extending outwards from the central rotor shaft with the upper rotor system spaced an axial distance from the lower rotor system on the central rotor shaft. A rotor blade support ring extends circumferentially around each of the upper and lower rotor systems which movably engages and supports the outer tips of the upper and lower rotor blades in spaced apart relation such that the upper and lower rotor systems rotate in opposite directions and the rotor blade support ring means prevents contact between the upper and lower rotor systems during operation thereof. | 05-21-2009 |
20090185906 | CENTRIFUGAL IMPELLER - A low noise centrifugal fan impeller has a multi cellular form of construction comprising a multiplicity of individual radial flow channels disposed in a circumferential and longitudinal array with respect to the axis of rotation. This increases the “blade passing frequency” as compared to a conventional impeller and since higher frequencies have lower energy for a given flow output the total amplitude of the noise generated can be reduced. Each channel extends from a respective channel inlet to a respective channel outlet which is offset from the respective inlet in the longitudinal direction of the impeller, and involves an increase in the internal dimension of the respective channel in the direction parallel to the axis of rotation, thus assisting deceleration and compression of the air or other medium being conveyed as it flows through the channels. | 07-23-2009 |
20100284812 | Centrifugal Fluid Pump - A centrifugal fluid pump has an impeller having a hub with vanes that may be airfoil shaped and may be twisted along their lengths. A shroud having an inlet is connected to the vanes to define with the impeller flow chambers between the vanes, at least a portion of each flow chamber having a substantially constant flow area to increase pump efficiency. An entrance feature may also be provided to improve entrance flow into the impeller, further enhancing pump efficiency. | 11-11-2010 |
20110103956 | SHROUD FOR ROTATING BLADES OF A TURBO MACHINE, AND TURBO MACHINE - The invention relates to a shroud for rotating blades of a turbo machine, in particular a gas turbine. Said shroud ( | 05-05-2011 |
20110182736 | Impeller Assembly - An impeller assembly including a rim plate defining a plurality of blades and the backplate defining a blade interlock structure for aligning and coupling the plates together. The rim plate defines a plurality of fluid-engaging blades. The interlock structure includes a plurality of tine-shaped interlocks extending from the backplate. The interlock structure also includes a plurality of channel sections engaging the blades. Each blade of the impeller may engage the interlock structure in a saddle manner. The backplate is defined by areas of reduced thickness allowing outer portions of the backplate to flex (rotate) toward further contact with the rim plate. | 07-28-2011 |
20110206518 | FRANCIS-TYPE RUNNER FOR A HYDRAULIC MACHINE, HYDRAULIC MACHINE INCLUDING SUCH A RUNNER, AND METHOD FOR ASSEMBLING SUCH A RUNNER - The present invention relates to a Francis runner for a hydraulic machine that comprises a belt with a rotational symmetry about a central axis of the runner, a ceiling with a rotational symmetry about the axis, and a plurality of blades ( | 08-25-2011 |
20110280728 | RADIAL FLOW TURBINE WHEEL FOR A GAS TURBINE ENGINE - A radial-flow turbine wheel for a gas turbine engine includes a Scallop Radius defined between an axis of rotation and the backface between each of the plurality of turbine blades, a Tip Radius defined between the axis of rotation and a tip of each of the plurality of turbine blades such that a Scallop Radius/Tip Radius defines a ratio less than 0.6. This enables a lower temperature scallop region which drives lower transient stresses and increases the Low Cycle Fatigue life of the turbine wheel. | 11-17-2011 |
20110286848 | INDUSTRIAL FAN IMPELLER HAVING A TAPERED BLADE AND METHOD - An industrial fan impeller that includes blades having an outer edge with a tapered portion and a level portion and method of manufacture are provided. The industrial fan impeller includes a front plate with a first diameter and a back plate with a second diameter larger than the first diameter of the front plate. Blades are attached to the front plate and the back plate. Individual blades have an outer edge with a tapered portion and a level portion. The blades are positioned between the front plate and the back plate such that the tapered portion of the outer edge of the individual blades tapers towards the front plate of the industrial fan impeller. | 11-24-2011 |
20120121421 | FLOW VECTOR CONTROL FOR HIGH SPEED CENTRIFUGAL PUMPS - An impeller for a centrifugal pump includes a radially inner hub, and a plurality of blades extending straight and along a direction that is perpendicular to a rotational axis of the impeller. The blades extend from a radially outer end to a radially inner end, and define a generally frusto-conical envelope. A flow control feature is formed between the radially inner end of the blades and the hub. The flow control feature has a curved upper surface. | 05-17-2012 |
20120121422 | Centrifugal fan and refrigerator having the same - A centrifugal fan includes a main shroud and a sub shroud. The main shroud is configured to connect upper ends of outer rims of a plurality of blades spaced apart from one another in a circumferential direction of a base. The sub shroud is provided at the upper end of the outer rim of each blade and serves to prevent air from moving from a pressure surface to a negative pressure surface of each blade by passing over an upper end of the blade. | 05-17-2012 |
20120128497 | TURBINE ENGINE COMPRESSOR STATOR - A gas turbine engine stator segment has a shroud band and a plurality of blade sections. Each of the blade sections has a first section with a first thickness, second section with a second thickness and a fairing section transitioning between the first and second section. The second section thickness is less than the first section thickness. | 05-24-2012 |
20120213637 | TURBOFAN OF AIR CONDITIONING SYSTEM - A turbofan of an air conditioning system in which a shroud is divided into two portions to form an air passage, in order to allow, when a portion of turbulent air generated at an upper portion of the shroud is reintroduced into a space between a bell mouse and the shroud by a pressure difference, the reintroduced air to be distributed throughout the air passage. The turbofan of the air conditioning system includes a first shroud formed with an air inlet hole, a second shroud formed to be spaced outwards from the first shroud so that an air passage is formed between the first and second shrouds, a hub to rotate through a rotational shaft of a drive motor, and a plurality of blades to guide air introduced through the air inlet hole in the circumferential direction of the hub. | 08-23-2012 |
20120230825 | GAS TURBINE BLADE FOR A TURBOMACHINE - The invention relates to a gas turbine blade ( | 09-13-2012 |
20120251321 | IMPELLER AND CENTRIFUGAL FAN - Herein disclosed are an impeller and a centrifugal fan having the same. The impeller includes a cup-shaped metallic hub having a cylindrical portion. The hub includes a flange extending outwardly from an edge of the cup, a plurality of resin vanes disposed above an outer portion of the flange and coaxially with the cylindrical portion, and an annular part made of resin supporting the plurality of resin vanes thereon and holding the outer portion of the flange embedded therein. | 10-04-2012 |
20120269636 | Blade features for turbocharger wheel - A turbocharger including a wheel having suction surfaces and hub surfaces contoured to reduce secondary flow. The suction surfaces are radially contoured with a sinusoidal component, and further have a chamfered edge at the shroud edge. The hub end-walls are contoured both streamwise and cross-stream with sinusoidal components. | 10-25-2012 |
20120288373 | ROTOR WITH ASYMMETRIC BLADE SPACING - A turbine apparatus comprises a rotor with a hub section defined about a rotational axis and a plurality of blades attached to the hub section. The plurality of blades comprises a first group having a first angular spacing in a first circumferential sector of the rotor, and a second group having a second angular spacing in a second circumferential sector of the rotor. The first angular spacing is different from the second angular spacing, and the rotor blades are asymmetric about the rotational axis. | 11-15-2012 |
20120301304 | SINGLE OR MULTIPLE STAGE BLOWER AND NESTED VOLUTE(S) AND/OR IMPELLER(S) THEREFOR - An impeller comprising: a top shroud; a bottom shroud, a plurality of vanes extending from the top shroud to the bottom shroud, each said vane including a top edge at a radially inner portion of the vane in contact with the top shroud and a bottom edge at a radially outer portion of the vane in contact with the bottom shroud, such that a radially inner portion of the vane at the bottom edge of each vane is not in contact with or adjacent the bottom shroud and a radially outer portion of the vane at the top edge of each vane is not in contact with or adjacent the top shroud. | 11-29-2012 |
20130266445 | Francis-Type Pump for a Hydroelectric Power Plant - The invention relates to a Francis-type pump, comprising the following features:
| 10-10-2013 |
20140044545 | SLURRY PUMP IMPELLER - A slurry pump impeller which includes a front shroud and a back shroud each having an inner main face with an outer peripheral edge and a central axis, a plurality of pumping vanes extending between the inner main faces of the shrouds, the pumping vanes being disposed in spaced apart relation. Each pumping vane includes a leading edge in the region of the central axis and a trailing edge in the region of the outer peripheral edges of the shrouds with a passageway between adjacent pumping vanes. Each passageway has associated therewith a discharge guide vane, each discharge guide vane being disposed within a respective passageway and located closer to one or the other of the pumping vanes and projecting from the inner main face of at least one of the or each shrouds. | 02-13-2014 |
20140154080 | GRINDER - A grinder includes a generally vertical, rotatable shaft having at least one set of cutter blades driven thereby and a fan assembly mounted on the shaft below the cutter blades in position to receive output therefrom. The fan assembly includes a fan disc secured to the shaft and rotatable therewith. Fan blades are secured to the fan disc in a generally radial orientation. Each fan blade includes a bottom flange secured to a top surface of the fan disc, a web extending upwardly from the bottom flange and a top flange extending outwardly from the web in a direction of rotation of the fan disc. The fan blades are preferably moveably mounted to the fan disc such that the angle of the fan blades relative to a true radial orientation can be adjusted. | 06-05-2014 |
20140169971 | ADDITIVELY MANUFACTURED IMPELLER - An impeller including a blade section, a shroud section, and a hub is made of a monolithic structure. The impeller is made by loading a 3D image file into an additive manufacturing device, using it to generate 2D files which correspond to a plurality of cross-sectional layers of the impeller, and solidifying corresponding portions of pulverant material layers to create the impeller. | 06-19-2014 |
20140377071 | Washing Machine - A washing machine having a centrifugal fan which may increase a discharge flow rate. The washing machine includes a centrifugal fan adapted to cool a motor, wherein the centrifugal fan comprises a circular plate connected to a shaft of the motor, and a plurality of blades radially arranged around a center of the circular plate, each of the blade includes an inlet portion extending to form an inlet for external air passing therethrough, and a guide bent and inclined from the inlet portion, and an outlet portion bent from the guide to form an outlet for the external air. | 12-25-2014 |
20150104317 | REDUCED STRESS SUPERBACK WHEEL - Turbocharger turbine wheels are designed to accelerate rapidly and to rotate at very high RPM. A turbine wheel is provided with improved low cycle fatigue resistance. The wheel can be balanced by conventional methods. | 04-16-2015 |
20150125303 | IMPELLER, IMPELLER CUTTING JIG, AND METHOD OF MACHINING IMPELLER - Provided is an impeller in which a through hole is provided in a center of a base member of the impeller and a plurality of recessed parts are formed on a bottom surface of the base member. Meanwhile, a jig using in a cutting work of the impeller includes a seating part having a seating surface, a shaft part is erected from a central part of the seating part and is engageable with the through hole of the impeller, and protruded parts are formed on the seating surface and are engageable with the recessed parts provided on the base-member bottom surface of the impeller. | 05-07-2015 |
20150354395 | ASSEMBLY - A bladed rotor assembly comprises a bladed rotor and a rotor housing. The bladed rotor has a plurality of blades arranged in a circumferential array around an axis of rotation, and the rotor housing encircles the bladed rotor and has a radially inwardly facing surface. | 12-10-2015 |
20150377050 | TURBINE SHROUD WITH SEALED BLADE TRACK - A turbine shroud for a gas turbine engine includes a plurality of shroud segments arranged around a central axis. Each shroud segment includes a carrier component, a blade track component, and a retainer component that couples the blade track component to the carrier component. The turbine shroud further includes a plurality of circumferential seals that seal circumferential interfaces between the shroud segments. | 12-31-2015 |
20160003103 | INTEGRAL SEGMENTED CMC SHROUD HANGER AND RETAINER SYSTEM - A shroud hanger with integral retainer assembly comprises a ceramic matrix composite shroud hanger a first wall and a second wall, the hanger having a support wall extending between the first and second walls, the support wall having a shoulder near circumferential ends, a retainer depending from the support wall having a first lower leg and a second lower leg extending in the circumferential direction, a first shroud supported by the first lower leg and a second shroud supported by the second lower leg. | 01-07-2016 |
20160025100 | IMPELLER FOR A CENTRIFUGAL PUMP AND CENTRIFUGAL PUMP - An impeller for a centrifugal pump has at least one vane which has a lower side concavely curved in at least one part region and which has at least one kink line in at least one part region. The kink line extends at least substantially along a main direction of extent of the at least one vane. The vane is open in a V shape along the kink line in at least one part region in the direction of a surface normal of the lower side. | 01-28-2016 |
20160040682 | Slurry Pump Impeller - A pump impeller which includes: a back shroud having an inner main face with an outer peripheral edge and a central axis, the impeller in use being rotatable about the central axis in a direction of rotation, a plurality of pumping vanes extending from the inner main face of the back shroud, the pumping vanes being disposed in spaced apart relation, and each pumping vane including: opposed first and second side faces, a leading edge in the region of the central axis and a trailing edge in the region of the outer peripheral edge of the back shroud, and with a passageway between adjacent pumping vanes, wherein the first side face at the leading edge is in a plane which is at an acute angle with respect to a plane of the inner main face of the back shroud, and the first side face at the trailing edge is in a plane which is at an obtuse angle with respect to the plane of the inner main face of the back shroud. | 02-11-2016 |
20160047245 | ROTOR FOR GAS TURBINE ENGINE - The gas turbine engine rotor can have a body having a solid-of-revolution-shaped portion centered around a rotation axis, the body defining an annular cavity centered around the rotation axis, the annular cavity penetrating into the body from an annular opening, the annular cavity extending between two opposite annular wall portions each leading to a corresponding edge of the opening; and at least one structural plate mounted to and extending between the two opposite annular wall portions and forming an interference fit therewith. | 02-18-2016 |
20160123157 | TURBINE WHEEL FOR A TURBINE ENGINE - A turbine wheel for a turbine engine comprising a disc carrying blades. Each blade comprises an upstream radial wall and a downstream radial wall which extend inwards from the platform of the blade. Inter-blade cavities each accommodate one sealing and vibration damping member. According to the invention, each member comprises at least a transverse partition wall axially arranged at a distance from a downstream (or upstream, respectively) portion of the member and axially opposite two upstream (or downstream, respectively) so as to obstruct a flow of incoming air into the cavity between the two radial (or downstream, respectively) upstream walls. | 05-05-2016 |
20160153304 | LOW LOSS AIRFOIL PLATFORM RIM SEAL ASSEMBLY | 06-02-2016 |
20160201466 | COATING POCKET STRESS REDUCTION FOR ROTOR DISK OF A GAS TURBINE ENGINE | 07-14-2016 |
416186000 | Having opposed annular surface between adjacent blades | 22 |
20090155077 | Impeller guide wheel for a hydrodynamic speed variator/torque converter and method for manufacturing an impeller - 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. | 06-18-2009 |
20090202352 | Forward swept centrifugal fan wheel - A forward swept centrifugal fan wheel comprising a first endring ( | 08-13-2009 |
20090208336 | IMPELLER WHEEL - The present invention relates to a pump impeller ( | 08-20-2009 |
20090214346 | SYSTEM AND METHOD FOR PULVERIZING AND EXTRACTING MOISTURE - A venturi receives incoming material through an inlet tube and subjects the material to pulverization. The material, as it undergoes pulverization, is further subject to moisture extraction and drying. An airflow generator, coupled to the venturi, generates a high speed airflow to pull the material through the venturi and into an inlet aperture in the airflow generator. The airflow generator directs the received pulverized material to an outlet where the material may be subsequently separated from the air. | 08-27-2009 |
20100021305 | ROTOR ELEMENT AND METHOD FOR PRODUCING THE ROTOR ELEMENT - A rotor element includes at least one irregularity with regard to rotational properties in its circumferential direction and the irregularity is positioned so as to separate the mechanical natural frequencies of the rotor element. | 01-28-2010 |
20100322771 | FLUID MACHINE - The present invention provides a rotary-type fluid machine which enables practical and effective operation in an extremely low specific speed range. The rotary-type fluid machine ( | 12-23-2010 |
20110142653 | TWO PIECE IMPELLER - A compressor impeller includes a hub and a plurality of blades. The hub is formed of first forged portion and a second forged portion that are bonded together. The first forged portion is comprised of a first alloy and the second forged portion is comprised of a second alloy that has lower fracture toughness than the first alloy. The blades are integral with and extend from the hub and are formed from the first forged portion. The hub is formed from both the first forged portion and the second forged portion. | 06-16-2011 |
20130039769 | CENTRIFUGAL IMPELLER AND TURBOMACHINE - A centrifugal impeller for a turbomachine is provided. The centrifugal impeller comprises a plurality of aerodynamic vanes, each of the aerodynamic vanes having internal walls on which is associated a fabric element. | 02-14-2013 |
20130058790 | CENTRIFUGAL IMPELLERS STRUCTURE - A centrifugal impellers structure is mounted to a transportation vehicle that has a wheel and a wheel hub and includes first and second centrifugal impellers. The first centrifugal impeller is in operative coupling with a free wheel hub axle mounted to the wheel hub and includes a top plate and a bottom plate, between which blades are mounted. The plates each form at least one inlet. The blades are arranged not to shield and block the inlets and define therebetween channels communicating with the inlets. The second centrifugal impeller is coupled to a rim of the wheel and includes a top plate and a bottom plate, between which blades are mounted. When the first and second centrifugal impellers are caused to rotate, the first centrifugal impeller generates an aerodynamic force that drives the second centrifugal impeller and the second centrifugal impeller generates a rotary force to drive the wheel. | 03-07-2013 |
20130164136 | IMPELLER - An impeller ( | 06-27-2013 |
20130170993 | BLADE SHROUD FOR FLUID ELEMENT - The disclosed fluid elements include radial blades extending to trailing edges and that are integral with front and rear shrouds to provide a fluid exit. Fillets adjoin the trailing edge and the front and rear shrouds at the exit. The front and rear shrouds respectively have first and second perimeter thicknesses at the impeller outer perimeter. The first perimeter thickness is greater than the second perimeter thickness at the trailing edge and adjacent to the exit, which provides greater high cycle fatigue in the area of the fillets. | 07-04-2013 |
20140241888 | PUMPS AND COMPONENTS THEREFOR - A pump side part for use with a shrouded pump impeller, comprising a side wall section rear face including an outer region with an outer edge in a plane which is substantially at right angles to the rotation axis, an inner region with an inner edge and an intermediate region between the outer and inner regions which is inclined inwardly from the said plane in a direction towards the inlet section, the inner region extending from the intermediate region in a direction away from the front face of the side wall section, wherein the outer face of the impeller front shroud and the side part rear face are arranged to be facing one another with a gap therebetween, the rear face being configured so that the cross-sectional dimension of the gap increases in a direction toward the impeller rotation axis in the intermediate region. | 08-28-2014 |
20150030454 | TURBO FAN AND AIR CONDITIONING APPARATUS - A turbo fan blade front edge has, between a main-plate-side blade front edge and a shroud-side blade front edge, a projecting blade front edge that distances from a blade rear edge (located in a rotation direction A) as it becomes further away from a main plate, which curves to a position away from a rotation center. In a range close to the main plate, a main-plate-side front-edge skirt portion distances from the blade rear edge and inclines away from the rotation center as it becomes closer to the main plate. A main-plate-side blade rear edge, close to the main plate of the blade rear edge, is substantially perpendicular to the main plate and a shroud-side blade rear edge, close to a shroud, is inclined so as to gradually distance away from the blade front edge (behind in the rotation direction A) as it becomes further away from the main plate. | 01-29-2015 |
20150037156 | IMPELLER FOR ELECTRIC BLOWER - Embodiments of the invention provide an impeller for an electric blower. The impeller includes a hub and a shroud disposed to correspond to the hub so that an internal space and an outlet are formed between the hub and the shroud and including an inlet formed therein to introduce air and a disk part formed from the inlet toward an outside. The impeller further includes a blade disposed in the internal space between the shroud and the hub, whereby a distance from a leading edge of the blade positioned at the inlet side to the center of the inlet is the same as a minimum distance from a rim of the inlet to the center of the inlet. | 02-05-2015 |
20150071781 | CENTRIFUGAL FAN AND AIR-CONDITIONING APPARATUS - A centrifugal fan includes a main plate fixed to a rotating shaft of a drive unit, a shroud having an air suction port, and a plurality of blades disposed between the main plate and the shroud. A rib for reinforcement is formed in each of the blades. Deformation due to an external pressure can be suppressed, the main plate, the shroud, and the blades are firmly fixed to each other, and a decrease in reliability, generation of noise, and the like due to deformation are suppressed. | 03-12-2015 |
20150086371 | Impeller for a Ventilation Unit and Ventilation Unit Comprising said Impeller - The present invention refers to an impeller ( | 03-26-2015 |
20150139805 | ROTARY MACHINE - Provided is a rotary machine including: a shaft that rotates; a disc that has a substantially cylindrical hub fitted into the shaft and is provided so as to widen outward in a radial direction from a front end to a rear end of the hub; and an impeller having a plurality of blades provided on a surface of the disc. The hub has a tight fit section having an internal radius that is smaller than a radius of the shaft, and a loose fit section having an internal radius that is greater than the internal radius of the tight fit section. The loose fit section is provided on the front end side of the hub with respect to the tight fit section. | 05-21-2015 |
20150316069 | CENTRIFUGAL FAN ASSEMBLY AND METHODS OF ASSEMBLING THE SAME - A centrifugal fan assembly having an axis of rotation includes an inlet ring, a back plate, and a plurality of blades coupled between the inlet ring and the back plate. At least one blade of the plurality of blades includes a radially inner edge, a radially outer edge, and at least one flow channel extending obliquely therebetween. The at least one flow channel includes an inlet defined on the radially inner edge and an outlet defined on the radially outer edge, wherein the inlet and the outlet are positioned at different axial locations along a length of the blade. | 11-05-2015 |
20150316073 | Impeller wheel for diagonal or radial fans, injection molding tool for manufacturing such an impeller wheel, and device comprising such an impeller wheel - An impeller wheel for fans has a bottom disc, a cover disc, and three-dimensionally shaped blades connected to the bottom disc and the cover disc. The bottom disc, cover disc, and the blades form a one-piece part. The blades have a leading edge and a trailing edge, wherein the leading edge and the trailing edge each have a median diameter. In a projection onto a cylinder that is coaxial with a rotation axis of the impeller wheel and has a diameter matching a median diameter of the trailing edge or of the leading edge, a first extension of the trailing edge and/or the leading edge is positioned at a first angle and a second extension of the trailing edge and/or the leading edge is positioned at a second angle relative to a line parallel to the rotation axis. At least one of the first and second angles is different from 0°. | 11-05-2015 |
20160169197 | WIND TURBINE | 06-16-2016 |
416187000 | Angularly spaced, axially elongated blades (i.e., squirrel cage type) | 2 |
20090246026 | Reinforced Impeller and Method - An impeller is provided having a first plate, a second plate, a plurality of blades being positioned between and connected to the first and second plates, and at least one brace member having first and second planes positioned between and connected to two blades such that the brace extends generally perpendicular from the first blade and extends from the second blade at an angle. | 10-01-2009 |
20100329871 | HYBRID FLOW FAN APPARATUS - A fan assembly for directing fluid flow in a hybrid radial and axial direction includes a backplate having an inner diameter portion and a substantially frusto-conical outer diameter portion positioned about a center axis (CL), a plurality of blades extending from the backplate, and an annular fan shroud positioned adjacent to the plurality of blades and configured for co-rotation therewith. The backplate, the plurality of fan blades and the fan shroud form a fan subassembly, and an overall depth of the fan subassembly is approximately 20-35% of an overall fan subassembly diameter (øD | 12-30-2010 |
416188000 | Conical web | 8 |
20080260533 | VANE AND/OR BLADE FOR NOISE CONTROL - Exemplary turbine blade outer edges, exemplary vane inner edges, exemplary systems and exemplary methods are disclosed that help to reduce noise in variable geometry turbines and optionally other turbines wherein a turbine blade interacts with an object. Other exemplary turbine-related technologies are also disclosed. | 10-23-2008 |
20110176920 | WIND TURBINE ROTOR WITH VENTURI TUBE EFFECT - The present invention discloses a rotor of wind energy conversion system (WECS) with the Venturi-tube effect. All the blades mounted on the blade-mounting seat envelop together to form a revolving-body cage turbine, which can be divided from structure into a head portion at the windward end, a tail portion at the wind exhaust end, and an airstream compression portion between the head portion and the tail portion and constituted by the enveloping blades. The revolution diameter of the airstream compression portion is gradually substantially increased from the head portion to the tail portion. The cage turbine forms a dynamic Venturi tube during the revolving process, with which the blade revolves to constitute its outline tube wall with the air permeability. The airstream passes through a window between the blades, and the incoming wind does work towards the blade during the process of permeating from the external space to the internal space of this outline tube wall, thus realizing the energy transfer. | 07-21-2011 |
20130272883 | IMPELLER AND METHOD OF MANUFACTURING THE SAME - Provided is a method of manufacturing an impeller, the method including: providing a disc comprising a plurality of blades; casting a shroud to a first state in a mold; providing a mounting space in the mold; mounting the disc in the mounting space and casting the shroud to a second state with the mounted disc. | 10-17-2013 |
20140119921 | SINGLE OR MULTIPLE STAGE BLOWER AND NESTED VOLUTE(S) AND/OR IMPELLER(S) THEREFOR - An impeller comprising: a top shroud; a bottom shroud, a plurality of vanes extending from the top shroud to the bottom shroud, each said vane including a top edge at a radially inner portion of the vane in contact with the top shroud and a bottom edge at a radially outer portion of the vane in contact with the bottom shroud, such that a radially inner portion of the vane at the bottom edge of each vane is not in contact with or adjacent the bottom shroud and a radially outer portion of the vane at the top edge of each vane is not in contact with or adjacent the top shroud. | 05-01-2014 |
20140212291 | RING FAN AND SHROUD AIR GUIDE SYSTEM - A ring fan and shroud guide system which includes a rotating fan member with a conical outer ring and a cylindrical shroud member overlapping at least a portion of the outer ring. A plurality of guide vanes are provided in the shroud which minimize the tangential velocity component of the air flow entering the tip-gap region and provide improved air flow through the system. The guide vanes can have a curved configuration. | 07-31-2014 |
20150139806 | ROTARY MACHINE - Provided is a rotary machine including: a shaft that rotates; a disc that has a substantially cylindrical hub fitted into the shaft and is provided so as to widen outward in a radial direction from a front end to a rear end of the hub; and an impeller having a plurality of blades provided on a surface of the disc. The hub has a tight fit section having an internal radius that is smaller than a radius of the shaft, and a loose fit section having an internal radius that is greater than the internal radius of the tight fit section. The loose fit section is provided on the front end side of the hub with respect to the tight fit section. | 05-21-2015 |
20150139807 | ROTARY MACHINE - Provided is a rotary machine including: a shaft that rotates; a disc that has a substantially cylindrical hub fitted into the shaft and is provided so as to widen outward in a radial direction from a front end to a rear end of the hub; and an impeller having a plurality of blades provided on a surface of the disc. The hub has a tight fit section having an internal radius that is smaller than a radius of the shaft, and a loose fit section having an internal radius that is greater than the internal radius of the tight fit section. The loose fit section is provided on the front end side of the hub with respect to the tight fit section. | 05-21-2015 |
20160177967 | RING FAN AND SHROUD AIR GUIDE SYSTEM | 06-23-2016 |