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7495362 |
Electrical fan
A electrical fan includes a frame ( 10 ) having a central tube ( 11 ), a bearing ( 30 ) received in the central tube, a stator ( 50 ) mounted around the central tube, and a rotor ( 70 ) being...
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7458775 |
Magnetically operated fan device
A magnetically operated fan device includes a fan member rotatably supported on a housing, one or more magnetic members disposed in the housing, a base supported in the housing, a follower...
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7455501 |
Miniature blower fan
A miniature blower fan includes an axial seat and a shaft extending from a central portion of the axial seat. A plurality of vanes and a magnet are mounted to an outer circumferential wall of the...
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7357567 |
Sterile fluid pumping or mixing system and related method
A system for pumping or mixing a fluid using a levitating, rotating magnetic element and various other components for use in a pumping or mixing system are disclosed. The magnetic element is placed...
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7306728 |
Rotor and methods of use
A shaftless rotor includes at least two recessed portions. The portions are shaped to enable the rotor to rotate by the application of fluid flow to the rotor. The centre of mass of the rotor is...
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7210226 |
Method of manufacturing an impeller
A method of manufacturing an impeller includes the steps of: (a) forming an impeller having a plastic disc body and magnetisable material distributed and encapsulated within the body; (b) testing...
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7147438 |
Electric turbine
An electric turbine includes a fan with a plurality of blades each with a tip having a permanent magnet positioned in the tip. The fan is mounted for rotation about an axis with the blades...
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7134840 |
Rotor system for a remotely controlled aircraft
A remotely controllable flying machine, such as a remote control ultralight helicopter, has at least one rotor blade ( 104 ), the pitch (α) of which may be adjusted. The adjustment of the pitch...
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7045702 |
Solar-paneled windmill
A solar-paneled windmill is provided having aerodynamic fan blades provided with solar panels. The windmill produces electricity using wind energy and solar energy. In another embodiment, magnets...
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7021894 |
Apparatus for cooling of electronic components
An apparatus for cooling of electronic components of the present invention are provided with a heatsink and a blower with an electric drive. The heatsink comprises a base and heat exchanging means....
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6984109 |
Rotor blade pitch control assembly
A rotor blade assembly provides a pitch control assembly to pitch the rotor blade about a rotor blade pitch axis. The pitch control assembly includes a trailing edge flap and a trailing edge servo...
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6926498 |
Hub of fan wheel with improved attachment for metal case
A hub of a fan wheel with improved attachment for a metal case. The fan wheel is composed of a hub with a storage portion and a plurality of blades arranged around circumference of the hub. A metal...
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6923619 |
Integrated blade cooler for electronic components
An integrated blade cooler for electronic components comprises a blower with a radial impeller and a casing, an electric drive with a magnetic rotor and a stator, and a heatsink with fins and a...
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6881033 |
Impeller
An impeller includes a plastic disc, an annular array of vanes, a rotation support and regions of permanently magnetisable material. The plastic disc has an upper face and a lower face. The vanes...
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6821090 |
Gust alleviation/flutter suppression device
An active control device is disclosed comprising an array of actively controlled oscillating air jets disposed on an aircraft structure. In a preferred embodiment, the device senses parameters...
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6769873 |
Dynamically reconfigurable wind turbine blade assembly
A dynamically reconfigurable wind turbine blade assembly includes a plurality of reconfigurable blades mounted on a hub, an actuator fixed to each of the blades and adapted to effect the...
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6745767 |
Respiration system with an electrically driven rotary compressor
A respiration system is provided with an electrically driven rotary compressor as a gas delivery unit. The system makes a low-noise mounting of the gas delivery wheel possible. The gas delivery...
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6544000 |
Magnetostrictive adjustment of propeller blade
A magnetostrictive rod subject to a magnetic field generated by an electrical activating coil within a pocket of a propeller blade is held in abutment with the body of the blade to effect its...
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6543719 |
Oscillating air jets for implementing blade variable twist, enhancing engine and blade efficiency, and reducing drag, vibration, download and ir signature
A porous surface on an aircraft structure driven with oscillating positive and negative pressures is used as an active control device for attenuating negative aerodynamic interactions. The porous...
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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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6293754 |
Method and apparatus for altering the physical properties of fluids
A system for fluid processing is provided to control shear, point velocity and pressure in either a Newtonian or non-Newtonian fluid, which includes creation of three fields, namely a dynamic...
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6234751 |
Oscillating air jets for reducing HSI noise
Porous surfaces on an aerodynamic structure driven with positive and negative pressures are used in an active control system for attenuating shock waves responsible for high-speed impulsive (HSI)...
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6227797 |
Rotary pump with hydrodynamically suspended impeller
This invention relates to rotary pumps adapted, but not exclusively, for use as artificial hearts or ventricular assist devices and, in particular, discloses in preferred forms a seal-less...
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6220826 |
Fuel delivery unit
A delivery unit for motor fuel includes a side channel pump and an electric motor that drives the side channel pump. The electric motor has an armature winding, a permanent magnet (37), and a rotor...
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6196797 |
Electronic self-powered propeller governor
An electronic self-powered propeller governor driven off the aircraft engine includes a drive shaft which drives a hydraulic pump to produce pressurized oil to move a hydraulically controlled...
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6149404 |
Fuel supply unit
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6092990 |
Oscillating air jets for helicopter rotor aerodynamic control and BVI noise reduction
An active control system for reducing blade-vortex-interaction (BVI) noise generated by a rotor blade. The active control system includes a pressure sensor assembly, a device for changing a lift...
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5967749 |
Controllable pitch propeller arrangement
In the particular embodiments described in the specification, a controllable pitch propellor arrangement includes a plurality of propellor blades supported from a central hub which is rotatably...
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5938404 |
Oscillating air jets on aerodynamic surfaces
An active control device for use on an aerodynamic structure is provided. The aerodynamic structure includes an outer aerodynamic skin and an interior volume, wherein the outer aerodynamic skin...
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5533803 |
Magnetic stirring apparatus with contactless coupling between stirring shaft and stirring tool
A stirring apparatus has a stirring shaft, a drive, a stirring tool, and a contactlessly operating coupling for transmitting a driving moment from the drive through the stirring apparatus shaft to...
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5522712 |
Low-powered cooling fan for dissipating heat
A cooling fan for dissipating heat requiring relatively little electrical power to operate. The fan includes a fan blade, constructed from flexible metal or plastic, anchored at one end and having...
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5399074 |
Motor driven sealless blood pump
A centrifugal blood pump, used for heart-lung machines or the like, comprises an impeller, a casing having a suction inlet and a delivery outlet and being equipped with a space for rotatably...
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4952119 |
Tip brake mechanism for a wind generator blade
A tip brake is described for use on the blade of a wind generator so that the tip will be rotated relative to the remainder of the blade to slow the rotation of the rotor. The tip of the blade is...
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4948337 |
Aircraft engine propulsor blade pitch sensing
Pitch of a blade (12) on an aircraft engine propulsor (14) is determined by employing a shaft (22) and a bevel gear (23) to alter relative circumferential distance between a first set of teeth (25)...
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4850821 |
Multiple magnet drive pump
A multiple magnet drive pump is disclosed, which includes a driving magnet having opposite polarities circumferentially spaced apart from each other, a plurality of driven magnets on a...
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4722668 |
Device for damping blade vibrations in turbo-machines
In order to damp blade vibrations, the shroud plates of the blades are equipped with magnet inserts.
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4684328 |
Acoustic pump
An acoustic pump including a resonant member having low internal damping and asymmetrically tapered to a thin edge; a piezoelectric driver mounted on the resonant member; and means for applying an...
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4653982 |
Windmill with controller for controlling rotor RPM
A windmill construction embodying an improved arrangement for driving a load through a centrifugal clutch and for adjusting the pitch angle of the blades. The adjusting mechanism is responsive to...
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4648345 |
Propeller system with electronically controlled cyclic and collective blade pitch
A plurality of blades extend radially from a hub which is rotated by a motor about a drive axis. Each blade has a root which is rotatably connected to the hub so that it can be independently...
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4642036 |
Magnet ball pump
A fluid pump including a double-entry impeller whose outer boundary is defined by a dissected spherical surface. The spherical surface includes an equatorial region which may be a groove or a...
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4634343 |
Apparatus for converting radiant energy such as light or heat directly into turning force
An apparatus for converting radiant energy directly into a turning force includes a rotor, a stator, a photoelectric converters on one of the rotor and stator for convering a radiant energy such as...
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4596153 |
Vane for use in monitoring flow of a fluid
A flowmeter has a vane which is caused to vibrate at one of its resonant frequencies and a flexure standing wave set up along it. Two piezoelectric sensors are used to monitor characteristics of...
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4595338 |
Non-vibrational oscillating blade piezoelectric blower
A non-vibrational oscillating blade piezoelectric blower is disclosed, including: a piezoelectric bender and means for supporting the piezoelectric bender at its inertial nodes. Weights may be...
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4577116 |
System for providing electrical energy to a missile and the like
A system for providing electrical energy to a missile and the like. The system including a turbine driven by a gas supply on board the missile. The turbine driving a generator thereby eliminating...
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4536674 |
Piezoelectric wind generator
An electric power generator used a piezoelectric transducer mounted on a resilient blade which in turn is mounted on an independently flexible support member. Fluid flow against the blade causes...
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4533849 |
Ceramic bistable deflection element
A bistable ceramic deflection element includes an assembly of two ceramic plates of a ferroelectric ceramic material which can be easily polarized and which has a low coercive field strength, one...
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4502652 |
Process and apparatus for suppressing external load carrying wing flutter for aircraft
In a semi-active system for suppressing external load-carrying wing flutter in aircraft, the carrying wing (1) is provided with one or more external loads (2), and the suspension of the external...
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4387318 |
Piezoelectric fluid-electric generator
A piezoelectric fluid-electric generator including: a piezoelectric bending element; means for mounting one end of the bending element in a fluid stream; means for driving the piezoelectric bending...
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4299784 |
Apparatus for producing an aerosol
There is disclosed apparatus for producing an aerosol having an atomising chamber having an inlet for material to be atomised, means for atomising the said material, outlet means for the aerosol...
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4295803 |
Separating machine
Separating apparatus comprises a rotor having a plurality of impeller blades rotatably mounted in a support housing. In the normal course of apparatus use, fluid flow occurs through opposed rotor...
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