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6604906 |
Centrifugal multiblade blower
A centrifugal multiblade blower includes a first counter-flow prevention means that prevents part of air flowing through a scroll chamber from flowing through a first aperture defined between a...
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6595753 |
Vortex attractor
A vortex generating apparatus has the capability of attracting and removably adhering one or more solid objects. The apparatus comprises an impeller housed within a shell. The vortex attractor...
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6558120 |
Turbo fan of a ceiling-embedded cassette type air conditioner having an improved structure
A turbo fan of a ceiling-embedded cassette type air conditioner. The turbo fan has a shroud for guiding a fluid introduced into the turbo fan, a hub having an outer diameter smaller than an inner...
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6551059 |
Radial blower, in particular, for a breathing apparatus
A radial blower, in particular, for a breathing apparatus, has a blower housing with a central, axial intake opening and a radial or approximately tangential outlet opening as well as a...
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6508627 |
Airfoil blade and method for its manufacture
This centrifugal blower fan wheel has extruded-aluminum airfoil blades. The preferred blades have two hollow regions, separated by an angled mid-load support beam, inside the blade. The nose...
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6506024 |
Inducer wheel and method of forming the same
An inducer wheel or impeller in which the hub may be formed by machining, rather than by molding, and which possesses a generally cylindrical cavity having a flattened section without a tapered...
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6506023 |
Integrally formed stamping sheet-metal blades having 3D structure
Integrally formed stamping sheet-metal blades having 3D structure for impeller or diffuser of a centrifugal pump or blower includes at least two integral forming blade or vane members. Each blade...
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6503057 |
Spiral fluted wheel for a water pump
A spiral fluted wheel for a water pump is composed of a first plate ( 10 ), a second plate ( 20 ) corresponding to the first plate ( 10 ), and a plurality of spiral impellers ( 30 ) sandwiched...
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6454533 |
Hollow blade for hydraulic turbine or pump
A runner for a hydraulic turbine or pump includes a hub and a plurality of blades extending from the hub at spaced intervals therearound. Each blade includes an inner edge secured to the hub and a...
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6443715 |
Pump impeller
A pump impeller having a central hub and circumferentially-spaced bottom vanes extending in a direction outwardly of the hub. An annular shroud surrounds the hub in outwardly-spaced relationship...
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6431831 |
Pump impeller with enhanced vane inlet wear
Disclosed is a centrifugal pump having inlet blade angles set to an angle which takes into account the velocity of the solids moving within a slurry steam to reduce the wear on the centrifugal...
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6386831 |
Fan wheel
The invention relates to a fan wheel for a turbo charger. The fan wheel ( 1 ) is comprised of a base body with a central axis of rotation ( 5 ) wherein the base body is assembled of two cover discs...
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6368056 |
Stage in a submerged multiple-stage pump
A multistage oil-well pump for pumping out formation fluid has a higher pressure head at low delivery rates and higher stability of performance when gas pockets are present in the medium being...
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6361270 |
Centrifugal pump for a gas turbine engine
A centrifugal pump for a gas turbine engine, including a housing having a fluid inlet port for receiving fluid at an initial pressure and an interior chamber defining a central axis. An impeller...
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6358011 |
Radial fan blade configuration
A fan blade configuration for a radial fan includes support structure for the cantilevered portion of each blade. This support structure is preferably affixed to an upper circumferential ring of...
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6338610 |
Centrifugal turbomachinery
The present invention provides a centrifugal turbomachinery having a good performance which can effectively reduce the secondary flow in the flow passage of the impeller and minimize the loss...
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6328530 |
MG alloy member and its use
A Mg alloy member with an anticorrosive coating free from any enviromental load can be produced by using a solution for chemical conversion treatment for anticorrosive coating, which comprises 0.05...
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6299409 |
Centrifugal type blower unit
In a centrifugal type blower unit, a diameter of an air suction port is set to be larger than a minimum inner diameter of a centrifugal fan, and a slanting portion is formed in each blade of the...
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6280143 |
Blade for fluid pump
A blade for use with a housing to comprise a motor driven pump to be used to pump fluids. In particular, the blade is particularly useful because of high efficiencies in vacuum pumps, particularly,...
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6276899 |
Impeller manufacturing process
A method of manufacturing an impeller, comprising machining hub, shroud and core portions, such that contacting surfaces between the hub and core, and shroud and core form mating surfaces, for...
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6264430 |
Evaporating fan and its blade wheel
A mechanical vapor recompression fan comprises a blade wheel and an electric motor to operate the blade wheel. The blade wheel at least mainly consists of carbon-fibre-based composite material and...
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6227798 |
Turbine nozzle segment band cooling
A gas turbine engine nozzle segment includes at least two circumferentially adjacent vanes joined together along an interface between the vanes. Each of the vanes includes a hollow airfoil disposed...
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6224335 |
Automotive air conditioning fan assembly
An automotive air conditioning assembly has a fan that is molded by a technique that inevitably leaves the lower hub and upper rim radially staggered relative to one another. Therefore, a...
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6220819 |
Centrifugal pump impeller
A centrifugal pump impeller for easy positioning and avoid producing turbulence, includes a hub, a rear cover plate engaged with the hub, a front cover plate having an inlet at a front end thereof,...
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6217285 |
Impeller for a centrifugal blower
An impeller for use in a centrifugal blower comprises a hub for receiving a driving torque at a central portion thereof, a shroud of a ring-like shape in plane formed with an opening for air intake...
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6210116 |
High efficiency pump impeller
An improved pump impeller using both spaced disc stack and radial vanes to establish pumping, the vanes separated to form a circumferential array of convergent spaces. The vanes may be of...
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6146094 |
Motor-driven blower and method of manufacturing impeller for motor-driven blower
Reduction of air resistance which acts on the conventional motor-driven blower is limited because crushed protrusions are formed on the surface of the plate of the impeller of the conventional...
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6139274 |
Radial impeller for a centrifugal pump
A radial impeller for a centrifugal pump with at least one flow channel between an axial flow inlet zone and a substantially radial flow outlet zone, which flow channel is limited by the inside and...
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6135716 |
Runner for Francis-type hydraulic turbine
Disclosed is a runner for a Francis-type hydraulic turbine, comprising a ring, a hub, and a number of blades all having a curved shape and being attached to the ring and hub. Each blade has an...
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6123507 |
Single port impeller
A single port pump impeller includes two pump vanes diverging arcuately and radially from a suction eye to form one open expanding chamber, and includes a blocking wall for closing the remaining,...
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6106230 |
Centrifugal pump
An impeller for a centrifugal pump which includes a front shroud and a rear should, the shoulds being spaced apart so as to form a plurality of passageways therebetween which are separated by a...
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6095752 |
Centrifugal blower impeller, especially for a heating and ventilating, and/or air conditioning, system for a motor vehicle
A centrifugal blower impeller for a vehicle heating and ventilation system has a central hub, a peripheral crown having a set of vanes for drawing the air axially through the crown, to deliver the...
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6082000 |
Method for producing an impeller for turbine pumps provided with vanes having an improved profile
A turbine pump impeller provided with vanes of the double-curvature type, obtained monolithically by die casting and comprising, between two disk-shaped elements, a plurality of double-curvature...
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6062819 |
Turbomachinery and method of manufacturing the same
An impeller in a turbomachinery has blades designed such that reduced static pressure difference ΔCp between the hub and the shroud on the suction surface of the blade shows a remarkably...
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6042335 |
Centrifugal flow fan and fan/orifice assembly
A centrifugal fan including a fan hub lying generally in a plane normal to the axis of fan rotation and having a central opening for receiving a motor housing, and a plurality of fan blades of...
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6039539 |
Radial fan wheel
A radial fan wheel comprising a number of fan blades symmetrically arranged with substantially equal spacing around the rotational shaft of the fan wheel. The blades are mounted between two end...
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6033183 |
Impeller for a rotary pump
The invention relates to an impeller of a rotary pump having an annular upper part defining a central inlet opening, a drive-adjacent disk-shaped lower part, and a plurality of blades secured...
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6007300 |
Centrifugal multiblade fan
A centrifugal multiblade fan comprises a plurality of curved blades which are circularly arranged about a common rotation axis at evenly spaced intervals defining a curved air flow passage between...
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5988979 |
Centrifugal blower wheel with an upwardly extending, smoothly contoured hub
A centrifugal blower wheel having an indivisible prime number of peripherally spaced blades projecting upwardly from the top surface of a generally annular-shaped base plate. Each blade includes a...
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5984632 |
Motor fan for a cleaning apparatus
A motor fan for a cleaning apparatus that creates the suction caused by a rotor in a suction device mounted in the cleaning apparatus such that foreign materials are drawn therein has a fan member...
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5980207 |
Backward inclined fan impeller
A backward inclined fan impeller features a plurality of blades attached to a shroud ring and base for use in transporting corrosive materials. The impeller assembly is substantially corrosion...
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5944485 |
Turbine of thermostructural composite material, in particular a turbine of large diameter, and a method of manufacturing it
The turbine comprises a plurality of blades disposed around a hub between two end plates, with the blades, the hub, and the end plates being made of thermostructural composite material. The hub is...
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5924848 |
Blood pump having radial vanes with enclosed magnetic drive components
A pump for transferring fragile and aggressive fluids such as human blood and comprising a pumping chamber along with a pair of fluid inlet ports arranged in oppositely disposed relationship on the...
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5810557 |
Fan wheel for an inline centrifugal fan
An inline fan wheel is disposed within a conduit for accelerating a flow in the conduit. The fan wheel has a backplate assembly. The backplate assembly has a backplate, presenting a substantially...
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5800128 |
Fan with individual flow segments connected to a hub with a prefabricated thermoplastic strip
This fan is provided with an impeller (1), having a hub (2), and with a casing surrounding the impeller (1). The impeller (1) has individual flow segments (4) connected to the hub (2) and to one...
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5775878 |
Turbine of thermostructural composite material, in particular of small diameter, and a method of manufacturing it
The turbine comprises a plurality of blades disposed between two end plates and defining flow passages between an inner ring and an outer ring. The turbine is formed by first and second parts, each...
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5741123 |
Turbocharger compressor fan and housing
A turbocharger compressor impeller structured as a combination elevated auxiliary blades fan surrounded by a curved inducer which provides a high gas volume low speed turbocharger compressor to...
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5741118 |
Multiblade radial fan and method for making same
Noise is minimized in the design of multiblade radial fans, wherein the specifications of the impeller of a multiblade radial fan are determined so as to satisfy the correlation expressed by the...
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5707209 |
Centrifugal ventilator fan
A centrifugal ventilator fan having a base plate with an axis of rotation, an inlet ring having an opening therethrough and a plurality of generally flat blades, each having first and second side...
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5685696 |
Centrifugal or mixed flow turbomachines
An impeller in a turbomachine has blades designed such that a reduced static pressure difference ΔCp between a hub and a shroud on a suction surface of a blade has a tendency to remarkably...
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