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7326037 |
Centrifugal pumps having non-axisymmetric flow passage contours, and methods of making and using same
Centrifugal pumps and methods of making and using them are disclosed. One inventive pump includes a plurality of flow passages, at least one pump component having one or more non-axisymmetric flow...
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7326027 |
Devices and methods of operation thereof for providing stable flow for centrifugal compressors
Centrifugal compressor flow stabilizing devices and methods of operation thereof are disclosed that act upon the flow field discharging from the impeller of a centrifugal compressor and modify the...
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7223070 |
Blower motor
A blower motor for a vacuum cleaner or the like has an impeller/rotor assembly which is dynamically balanced. Air guide vanes are disposed between the diffuser plate and fan cover and surround the...
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7220106 |
Francis wheel and hydraulic machine comprising one such wheel
A Francis runner that includes a crown, a band and blades which extend between the crown and the band. An angle (β 24 ) between a linear speed (U, D 224 ) of one of the blades and a median of the...
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7156618 |
Low cost diffuser assembly for gas turbine engine
A gas turbine diffuser assembly and a method for assembling same, includes providing a loose fit between the diffuser body and the diffuser pipes. Damper members provide a snug attachment.
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7025566 |
Hybrid vane island diffuser
A gas turbine engine diffuser comprises a bowl-shaped diffuser casing and a cover nested into the bowl-shaped diffuser casing and cooperating therewith in defining a diffuser passage having a...
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6932565 |
Turbine
A turbine comprises a turbine wheel having radial blades and supported in a housing for rotation about an axis. An annular inlet passageway extends radially inwards towards the turbine wheel, the...
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6877955 |
Mixed flow turbine and mixed flow turbine rotor blade
A mixed flow turbine includes a hub attached to a rotation axis and a plurality of rotor blades. Each of the plurality of rotor blades is attached to the hub in a radial direction, and the hub is...
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6695580 |
Motor/fan assembly having a radial diffuser bypass
A bypass motor assembly includes a motor having a rotatable shaft, a working air fan secured to the rotatable shaft and a shroud having an intake eyelet and at least one exhaust apertures. The...
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6695579 |
Diffuser having a variable blade height
A diffuser for converting high velocity fluid into high pressure fluid. The diffuser includes a pair of spaced opposing walls between which extend a plurality of blades. Each of the blades has a...
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6651431 |
Boosted internal combustion engines and air compressors used therein
An inlet air compressor for an internal combustion engine is provided which has one inlet and a plurality of outlets. Within the compressor are disposed a plurality of diffusers coupled to the...
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6641364 |
Apparatus for minimizing noise in a fan unit
The present invention is a system of symmetric guides ( 25 A, 25 B) and baffles ( 26, 28 ) for directing and diffusing the external air drawn from a fan blower ( 12 ) before distributing the flow...
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6634856 |
Integrally formed stamped 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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6619914 |
Centrifugal fan runner and air cleaner
An air cleaner includes a centrifugal fan runner equipped with backward blades, a core plate connected to an axis of a motor; and a side plate being opposing the core plate. The backward blades,...
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6592451 |
Fan unit
A fan unit including a fan blower configured to emit air in a plurality of directions in an airflow plane. The fan unit includes first and second guide surfaces disposed on a first side of the fan...
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6589015 |
Discrete passage diffuser
A centrifugal compressor includes an impeller and a diffuser. The impeller has an inner integral hub with vanes thereon, is adapted to rotate within an outer shroud about a central longitudinal...
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6537028 |
Diffuser arrangement for centrifugal compressors
In a diffuser arrangement for centrifugal compressors, a longitudinal center line of each passage is tangential to a reference tangent circle defined concentrically with respect to the impeller and...
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6425739 |
In-line centrifugal fan
An in-line centrifugal fan including a housing having an inlet and an outlet spaced apart and substantially coaxial one to another and a motorized centrifugal-type impeller mounted centrally within...
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6394751 |
Radial compressor with wall slits
The invention relates to a radial compressor for producing a compressed gas flow, having a casing, an impeller which is arranged therein has a hub which carries blades. A ring is arranged in the...
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6371724 |
Centrifugal fluid machine
At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to...
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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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6280139 |
Radial split diffuser
The invention relates to a radial split diffuser with an inner casing and an outer casing joined together along a cylindrical joint. Each diffuser passage is intersected by and extends transversely...
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6241472 |
High shear rotors and stators for mixers and emulsifiers
A rotor-stator assembly includes a rotor and a stator, each of which includes at least one surface having a plurality of grooves defining a plurality of ridges and valleys. The grooves are located...
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6210104 |
Removal of cooling air on the suction side of a diffuser vane of a radial compressor stage of gas turbines
The removal of cooling air from the diffuser part of a radial stage of a compressor of a gas turbine is provided. The end stage of the compressor has a radial rotor disk (2) with a bladed diffuser...
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6179561 |
Fan wheel structures
A fan wheel includes a main body and an axle connected to a center of the main body. The main body includes a peripheral wall provided around an axial axis thereof. A number of upper blades and...
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6162015 |
Centrifugal type fluid machine
A highly efficient centrifugal type fluid machine is configured so that the vane outlet angle or the vane outlet diameter at a side plate end (4a) of a single stage or a plurality of stages of a...
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6155777 |
Removal of cooling air on the housing side of a diffuser of a compressor stage of gas turbines
The removal of cooling air from the diffuser part of a radial end stage of a compressor of a gas turbine is provided. Compressed air is removed via a cooling air discharge (10) from a radial...
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6123506 |
Diffuser pipe assembly
The invention provides a diffuser assembly constructed of internal and external concentrically nested bowl-shaped shells for directing an outward flow of compressed air from a centrifugal...
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6123505 |
Stator produced by injection molding
A stator for a hydrodynamic torque converter which is produced by injection molding with axially drawn dies. The stator hub has stator blades produced by use of a thermoplastic material to fill the...
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6082966 |
Stator vane assembly for a turbomachine
A stator vane assembly for a gas turbine engine (10) compressor (16) comprises a plurality of circumferentially arranged stator vanes (44A) and a plurality of circumferentially arranged load...
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6039532 |
Blower fan blade passage rate noise control scheme
An blower of the squirrel cage type that includes a baffle extending from the cut-off area between the impeller and the air outlet for providing a gradual decrease in air flow area between the...
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6017187 |
Device for reducing noise in centrifugal pumps
The object of the invention is a device for reducing the hydraulic operating noise in centrifugal pumps. To this end, the flow edges of a guide device downstream of an impeller are in oblique...
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6015258 |
Wind turbine
Wind turbine apparatus is described for converting wind energy into electrical energy. The apparatus includes a rotatable central shaft, a plurality of rotor blades attached to the central shaft,...
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5988977 |
Backlash adjustment mechanism for variable pipe diffuser
A backlash adjustment mechanism for use in a variable pipe diffuser having inner and outer rings and a casing. The backlash adjustment mechanism includes a drive shaft and a pinion gear attached...
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5951247 |
Discharge vanes for axial fans
The fan housing of an axial fan having a flow resistance such as a coil or grille in a closely spaced relationship is provided on its discharge side with a plurality of circumferentially spaced,...
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5919030 |
Electric fan
An electric fan comprises: a radial impeller for expelling the air trapped therein out of the impeller; a diffuser having a multiplicity of air passages separated by air guides, the air passages...
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5762833 |
Aerator with a removable stator and method of repairing the same
An improved aerator, including a removable stator, is disclosed. The aerator includes a submersible motor having a drive shaft which rotates an attached impeller within an aeration zone. The...
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5730580 |
Turbomachines having rogue vanes
A turbomachine has a set of vanes in the airfoil cascade of its diffuser system. A first portion of the vanes are "rogue" vanes. A second portion of the vanes are "remaining" vanes. For a given...
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5634769 |
Guide apparatus for centrifugal pumps
A guide apparatus for use with centrifugal pumps which transport fluids that contain foreign bodies. The guide apparatus includes a plurality of guide blades. Each of the guide blades has a...
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5616000 |
Stator of torque converter for vehicles improved to suppress separation of working fluid
To suppress a separation of working fluid from the vane surface during operation at and around a fluid coupling condition attained after a substantial completion of torque conversion, the aerofoil...
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5601070 |
Convection oven
A convection oven having an insulated oven chamber bounded by a front access door, a floor, a ceiling, two side walls, and a rear wall. An inlet air passageway, which includes a heating element,...
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5529457 |
Centrifugal compressor
A centrifugal compressor has a diffuser operative to convert the kinetic energy of fluid discharged from an impeller into pressure and having a shroud, a main shroud, and stationary vanes disposed...
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5489186 |
Housing with recirculation control for use with banded axial-flow fans
Stationary flow control vanes positioned to encounter and redirect recirculating airflow provide a surprising combination of efficiency, low noise, and manufacturability for shrouded, banded, axial...
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5466118 |
Centrifugal compressor with a flow-stabilizing casing
A centrifugal compressor with a flow-stabilizing casing includes an impeller (2) rotatably supported about a machine axis (7) and having a hub (9) with a plurality of impeller vanes (3) on its...
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5445496 |
Centifugal compressor with pipe diffuser and collector
A channel type diffuser is applied to a centrifugal compressor to obtain substantially complete expansion of the refrigerant downstream of the impeller wheel. The relatively large volume of...
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5443362 |
Air turbine
An air turbine is provided having an entrance stator blade arrangement formed in two halfs, each containing a blade array, with the two halfs interleaved, upon turbine assembly, to thereby easily...
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5409352 |
CPU heat dissipating device
A CPU heat dissipating device, which includes a radiating flange having a plurality of radiating fins spaced on a flat bottom plate thereof around a circle and defining a receiving chamber to hold...
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5399068 |
Blower scroll housing with structure to reduce noise and increase air flow
A scroll housing structure of a multiblade blower suitable for lowering a collision noise of air and for preventing a flow loss. The structure comprises a scroll casing provided at its side wall...
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5387081 |
Compressor diffuser
Compressor 14 of a gas turbine engine has a final centrifugal stage 18 discharging air into annulus 20. Diffuser 20 are straight and of frustoconical shape receiving air from the annulus. A side...
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5368440 |
Radial turbo machine
A radial turbo machine has an impeller and a diffuser with a plurality of airfoil vanes. The airfoil vanes have a design point angle of attack substantially equal to or less than the angle of...
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