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8052386 |
Mixed flow roof exhaust fan
A mixed flow fan wheel has a convex hub, an axially-spaced away concave annular shroud, and a plurality of angularly distributed blades extending between and interconnecting the hub and shroud, all...
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7988407 |
Axial fan
An axial fan is provided. The axial fan includes a base, a rotor, a guide and a plurality of blades. The guide connects to a guide tube to provide airflow. Each blade has a passive part and an...
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7896612 |
Blower unit and portable blower
A blower unit for a portable blower, having a drive shaft that is rotatably driven by a drive motor. Disposed in the blower unit is an axial fan that is provided with at least one fan wheel driven...
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7789617 |
Impeller and diffuser with a rotating and converging hub
A suction stage for a pump with a centrifugal wheel, the suction stage including a rotational impeller equipped with a hub and arranged upstream of the centrifugal wheel, the suction stage further...
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7604458 |
Axial flow pump and diagonal flow pump
The guide vanes comprise two kinds of guide vanes which are alternately placed in the circumferential direction of a shroud. One kind of the guide vanes have a longer length than the other kind of...
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7484929 |
Exhaust fan systems
Exhaust apparatus for exhausting “dirty” exhaust gases accept a core flow of such exhaust gases and combine that with an annularly-surrounding “rooftop” flow of ambient air for diluting the exhaust...
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7419364 |
Nose cone for a turbomachine
A nose cone for a turbomachine, such as a turbojet in particular, the cone being mounted on the end of a shaft carrying fan blades and being associated with a controlled axial displacement...
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7241111 |
Contoured disk bore
A turbine disk comprising a disk bore disposed about a centerline, the disk bore comprising a bore width, and a web extending radially away from the disk bore wherein the disk bore comprises in...
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7150600 |
Downhole turbomachines for handling two-phase flow
Disclosed is a submersible pump assembly for handling two-phase flow. The pump assembly preferably includes a housing and a first stage. The first stage includes an impeller assembly and a diffuser...
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7048499 |
In-line centrifugal fan
An inline centrifugal mixed flow fan (20) includes an axially extending intake conduit (22). An inlet cone (28) is disposed at an intake end (24). An impeller (30) is disposed downstream of the...
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7011501 |
Energy generating system
A system (1) designed to generate energy with the aid of, primarily, sea currents, comprising a rotation body (4) having a front inlet side (2) and a rear outlet side (3), and at least one transfer...
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6935843 |
Fan blade with improved mix flow fan
The present invention relates to a structural reinforcement of the fan wheel of a mixed flow fan. The structure of the fan wheel comprises a hub and several blades attached to the outer rim of this...
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6863500 |
Blast fan
Disclosed is a blast fan for blowing air in a centrifugal direction thereof. The blast fan comprises a hub coupled to a rotating shaft of a motor, and a plurality of blades equally spaced and...
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6447255 |
Gas turbine nose cone assembly
A nose cone assembly (30) for a gas turbine engine (10) comprising a spinner (34) having a generally conical forward portion (33) and a base portion (35). The base portion (35) of the spinner (34)...
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5882178 |
Impeller and shaft coupling
An improved compressor shaft and impeller for an overhung centrifugal compressor are disclosed that enable the hydraulic attachment and release of the impeller and shaft. The shaft and impeller are...
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5695318 |
Diagonal fan
This invention relates to a diagonal fan with a truncated cone shaped hub (4a) of the fan wheel (4) and a truncated cone shaped air housing (2). The angle of the truncated cone of the hub (4a) and...
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5549451 |
Impelling apparatus
A pumping device is provided having a housing comprised of an inlet housing (70) and a discharge housing (98). The inlet housing (70) contains an impeller device (80) that is comprised of a conical...
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5419679 |
Laminar flow fan and electrical apparatus incorporating fan
A laminar flow fan is adapted to fit into a the internal cavity of a fan housing (70). The fan comprises a stack of parallel disk elements (12, 14, 16, 18, 20, 22) mounted for rotation on a motor...
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5372477 |
Gaseous fluid aspirator or pump especially for smoke detection systems
A gaseous fluid aspirator/pump apparatus including a rotary impeller (10) with radially extending blades, the impeller being mounted in a housing having a gaseous fluid inlet and outlet wherein...
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5266009 |
Impeller structure for water jet propelled boat
A water jet propelled boat is equipped with a water intake opening, a water jet outlet, and with a mixed flow type impeller, where the above mentioned water intake opening and the above mentioned...
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5224833 |
Fan for a gas turbine engine air intake
A ducted fan gas turbine engine spinner is so configured so as to be generally outwardly flared at its downstream end. The flared portion provides a decrease in the local axial velocity of the air...
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5213474 |
Pump unit
A vacuum pump, denoted "VUMP", comprises a pair of nested conical or bell-shaped housings, wherein at least the outer bell-shaped housing forms a part of the pump chamber and has a central inlet....
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5167489 |
Forward swept rotor blade
A rotor blade includes a root, tip, leading edge, trailing edge, forward surface, and aft surface, and a pitch section disposed equidistantly between the root and tip. The blade has a forward sweep...
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4909711 |
Small fan with electric drive motor
A fan is disclosed comprising an electric drive motor having a shaft with an impeller coaxially disposed thereon, the impeller configured to suck axially and to blow with radial directional...
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4895489 |
Axial flow fan
An axial flow fan has a casing having an air flow passage therein which terminates at one end in an air inlet port and at the other end in an air outlet port. A hub carrying fan blades is rotatably...
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4838759 |
Cavitation-resistant inducer
An improvement in an inducer for a pump wherein the inducer includes a hub, a plurality of radially extending substantially helical blades and a wall member extending about and encompassing an...
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4781523 |
Fluid energy turbine
A fluid energy converter having a squirrel-cage-like rotor in which blades peripherally distributed about a horizontal axis of rotation are in a plane generally parallel to the axis of rotation. An...
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4762465 |
Water pump impeller
The water pump impeller comprises a boss with a disk part shaped thereon and a circular or paraboloid transition region is provided between the boss and the disk part. A metal reinforcing disk is...
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4708585 |
Centrifugal pump
A centrifugal pump including a stationary guide vane secured to a casing, and a centrifugal impeller arranged for rotation in the casing in a position adjacent the stationary guide vane. The...
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4657483 |
Shrouded household fan
An extremely efficient, substantially noiseless portable fan suitable for household use is provided which produces a highly focused, homogeneous stream of substantially laminar flow air to achieve...
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4652207 |
Vaneless centrifugal pump
A centrifugal pump utilizing laminar action induced by a vaneless impeller and having a minimal drag front plate which cooperates with the circular rotor. The smooth surface of the concave face of...
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4648796 |
Centrifugal pump for very thick and/or viscous materials and products
A centrifugal pump used for conveying very thick and/or viscous materials and products which comprises a screw impeller of at least one start, of which the component blade, which is in the form of...
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4634344 |
Multi-element centrifugal pump impellers with protective covering against corrosion and/or abrasion
A pump of centrifugal type having both an impeller unit and an expeller unit coupled together for effecting frictionless hydraulic seal during operation within an appropriate housing therefor. By...
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4618315 |
Small fan
A small fan with an electric power motor is provided, the rotor of which is designed as a cup-shaped outer rotor and blade wheel hub. The outer wall of the blade wheel hub coaxially widens in the...
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4564335 |
Axial flow fan
An axial-flow fan comprising a fan wheel surrounded by a casing, the casing having a cylindrical flow passage in its axial central portion which is broadened at least toward the exhaust side by way...
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4540334 |
Open-type centrifugal pump with single-blade impeller
The housing wall (23) through which the impeller shaft passes is embodied as a truncated cone. The leading edge (28) of the impeller blade flank (27) on the delivery side of the pump which grazes...
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4462383 |
Impingement food preparation apparatus
An oven for preparing food comprising an enclosure having a conveyor received therethrough for conveying food to be prepared through the enclosure. Positioned within the enclosure and about the...
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4443152 |
Axial slurry pump
A multi-section inline axial flow pump is designed to pump a large volume of liquids containing solids in suspension. The pump consists essentially of a tandem-blade row, high-head axial inducer, a...
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4373861 |
Axial-flow fan
An axial-flow fan is disclosed which comprises a fan wheel and a housing casing surrounding said fan wheel, the fan wheel having a hub with a diameter which is at least half as large as the inner...
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4371313 |
Miniature diagonal blower with axial flow inlet and radial flow outlet
A miniature diagonal blower with axial inward flow and radial outward flow is disclosed. The blower comprises a drive motor having a shaft stub and a motor housing, a fanwheel including a hub...
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4243357 |
Turbomachine
A turbomachine, operable as a compressor or a turbine, for a compressible fluid is provided which includes a wheel having a plurality of vanes extending from a generally axial flow section to a...
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4193737 |
Fish pump
A fish pump is described for pumping live fish in water from one location to another. The pump is designed specifically for pumping live fish without injuring the fish. Of special significance is...
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4142839 |
Centrifugal pump for high V/L performance
The centrifugal pump comprises a unique combination of a centrifugal impeller, inducer and jet pump having the capability of handling incoming fluids with a minimum V/L ratio of 1.0. The motive...
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4140433 |
Wind turbine
A power-generating wind-driven turbine is disclosed which offers the advantage that it is compact and lightweight and is capable of producing a substantially greater output than a conventional...
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4120603 |
Jet flap controlled fuel pump
An inducer for a high speed centrifugal pump includes a shaft located upstream of the inlet eye of the centrifugal pump concentrically within an inlet bore; and further includes a plurality of...
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4120152 |
Anti-vortex pintle
In high velocity pumps such as waterjet pumps, flow leaving the rotor is guided to a smaller discharge diameter by a stator-nozzle combination. To achieve maximum thrust efficiency, the whirl...
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4111599 |
Centrifugal pump for viscous media
The present invention is directed to a centrifugal pump of the type including an essentially conical rotor having a helical vane increasing in diameter from its entrance end to its discharge end;...
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4087994 |
Centrifugal pump with means for precluding airlock
A centrifugal pump having an impeller with a fingerlike projection on each blade extending radially outward from the impeller body into the outer annulus of the pumping chamber. These projections...
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4080096 |
Fluid pump impeller
An axial flow pump structure utilizing an impeller of improved design, constituting essentially a propeller blade delivering forces to the fluid either gaseous or liquid being pumped in both axial...
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4080112 |
Magnetically-coupled pump
A high-volume, heavy-duty, magnetically-coupled centrifugal pump having flow-dividing duct configurations directing the influx to opposite sides of the impeller as the result of assembly of mating...
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