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7523889 |
Modular anti-icing/de-icing device for an aerodynamic surface
A anti-icing/de-icing device for an aircraft wing includes at least one aerodynamic surface, e.g. a rotorcraft blade or an airplane wing, the aerodynamic surface possessing at least two...
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7487673 |
Ice detection based on anemometry
A method for ice detection for a wind turbine is provided. The method includes providing an ice condition threshold parameter adapted for distinguishing a condition during which icing may occur and...
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7448853 |
System and method of determining centrifugal turbomachinery remaining life
A centrifugal turbomachine includes an impeller and a speed sensor arranged to detect a speed associated with an impeller speed. A temperature sensor is arranged to detect a temperature associated...
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7331760 |
Fan revolution speed control method
Actual temperatures of intake air, hydraulic oil, and coolant, to be cooled by a cooling fan, are detected. Target fan revolution speeds are determined by PI control units based on differences...
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7310959 |
Method for actuating a fan using a plurality of characteristic curves and a control program for controlling the power of the fan
The present invention relates to control of a fan during which the power of the fan is determined from the characteristic curves of the fan motor, the operating parameters of the cooling system and...
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7182575 |
Method of operating a wind turbine
A wind turbine has a generator ( 7 ) with a connected rotor ( 3 ) having a hub ( 4 ) and blades ( 5 ) rotatably connected to the hub for adjusting the pitch angle. In a method of operating such a...
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7118336 |
Pressurized oil supply for propeller engine system
A system and method for providing pressurised oil during non-feathered in-flight shutdown conditions in a variable-pitch aircraft propeller engine. A secondary pump provides pressurised oil...
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7086834 |
Methods and apparatus for rotor blade ice detection
A method for detecting ice on a wind turbine having a rotor and one or more rotor blades each having blade roots includes monitoring meteorological conditions relating to icing conditions and...
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7077622 |
Emergency cooling system for a thermally loaded component
In an emergency cooling system ( 17 ) for a component ( 1 ) which is subject to thermal load in operation, in, e.g., a turbine, the component ( 1 ) has a wall ( 3 ) which, in operation, is acted on...
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7055316 |
Fluid coupling for mobile equipment
In an assembly including a diesel engine, a fluid coupling connected to the flywheel of the diesel engine, a comminuting machine and a conveyor for feeding the comminuting machine, a fluid coupling...
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7025559 |
Methods and systems for operating rotary machines
A method for operating a rotary machine is provided. The rotary machine includes a stationary member and a rotatable member wherein the rotatable member is configured to rotate at least partially...
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7008184 |
Control for cooling fan
A control for changing direction of air flow through a cooling core in response to an external signal and a purge signal includes a logic circuit and a relay assembly. The logic circuit generates a...
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6893221 |
Fan control
A method for controlling fan operation that includes detecting a stopped fan and attempting to start the stopped fan. The method includes attempting to start the stopped fan again after at least...
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6890152 |
Deicing device for wind turbine blades
Methods and Apparatuses for deicing a wind turbine blade are described herein. In one embodiment, an exemplary process includes detecting an icy condition on a wind turbine blade and causing at...
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6729844 |
Controller for variable pitch fan system
An electronic control device for opening and closing valves in a valve assembly that actuates a variable pitch fan system capable of operating in a plurality of fan blade pitch positions including...
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6537019 |
Fan assembly and method
A fan assembly includes a first fan and a second fan. The first fan has a first housing and a first blade assembly. The first blade assembly includes a plurality of blades attached to a hub, and is...
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6485255 |
Cooling air flow control device for a gas turbine engine
A cooling air flow control device for a gas turbine engine, the cooling air flow control device comprising a component, a cooling passage defined within the component and a shaped memory metal...
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6416279 |
Cooled gas turbine component with adjustable cooling
At least one adjustable restricting point is introduced into the cooling air path of a coolable gas turbine component, and means which make it possible to change this restricting point during the...
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6361276 |
Method and apparatus for removal of moisture from rotor blades
Composite rotor blades are constructed from a honeycombed polymer interior core structure having a bonded glass skin covering associated with the top and bottom surfaces thereof. Over time,...
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6358006 |
Quick disconnect bracket system for propeller deicer
A wiring system for an electrothermal propeller deicer for both left and right hand rotating propellers, where the deicer has leads extending therefrom and terminating in a connector which mates...
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6340289 |
Single lever power controller for manned and unmanned aircraft
Method and apparatus for controlling an aircraft engine with a single, manually-operable lever includes structure and function for generating a pilot thrust command from the single lever. A...
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6216979 |
De-icing connection systems for rotor aircraft rotor
The system connects a power supply conductor to an electrical de-icing device of a blade by at least one cable with a first section connected to the power supply conductor by a connector and to a...
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6190127 |
Tuning thermal mismatch between turbine rotor parts with a thermal medium
In a turbine rotor, an aft shaft wheel and the final-stage wheel of the rotor are coupled together, including by a rabbeted joint. During shutdown and startup of the turbine, a thermal mismatch...
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6170275 |
Fan for refrigerator
A fan suitable for use in a refrigerator includes a motor frame having a bracket insertion hole, a bracket including a cylindrical portion fitted into the bracket insertion hole so as to project...
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6146090 |
Cooling/heating augmentation during turbine startup/shutdown using a seal positioned by thermal response of turbine parts and consequent relative movement thereof
In a turbine rotor, a thermal mismatch between various component parts of the rotor occurs particularly during transient operations such as shutdown and startup. A thermal medium flows past and...
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6109872 |
Rotor blade cover system
A helicopter rotor cover system to prevent ice formation on the rotors. The system is comprised of a main rotor cover and a tail rotor cover providing an enclosed space around the rotors, a tubular...
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6065934 |
Shape memory rotary actuator
A rotary actuator (18) is provided, including an actuator assembly (20). The actuator assembly includes a torque tube (24) formed of a shape memory alloy, a super elastic NiTinol return spring (26)...
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6065930 |
Cooling control apparatus
A cooling control apparatus controls a plurality of cooling members. The apparatus has a monitor which monitors states of predetermined combinations of the cooling members and a controller which...
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6015263 |
Fluid moving device and associated method
A fluid moving device (100) includes a rotatable assembly (101), and a plurality of fan blades (102-04) disposed circumferentially around and extending outward from rotatable assembly (101), at...
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5997250 |
Method and apparatus for controlling pitch of an aircraft propeller
A propeller pitch control apparatus for an aircraft in which the vector sum of the aircraft forward speed and the propeller rotational tip speed is a selected fraction of the speed of sound, the...
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5769606 |
De-icing connection installation for rotorcraft rotor
The installation links a supply conductor to an electrical device for de-icing a blade using at least one cable with a first stretch linked to the supply conductor by a connector and to a second...
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5716193 |
Installation for affording electrical continuity for rotorcraft rotor
The installation for removing electrostatic charge and passing lightning current between a conductor of each blade of the rotor and a metallic part of the hub comprises at least one conductive...
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5709532 |
Propeller ice protection system and method providing reduced sliding contact maintenance
The invention relates to a propeller ice protection system having more evenly distributed sliding contact wear resulting in reduced maintenance, and a method of operating the system. According to...
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5564899 |
Engine cooling system with blade angle controllable cooling fan
An engine cooling system with a blade angle controllable cooling fan. The system has a water temperature sensor, a controller and a pitch actuator. The sensor senses a cooling water temperature and...
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5545009 |
Hot air/cold air dual-mode electric fan
A hot air/cold air dual-mode electric fan including a vane assembly having an electric heating coil in the mica sheets of each vane, a bakelite mount fixedly secured to the vane assembly and having...
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5350273 |
Wind energy collection system
A wind-driven apparatus for converting the kinetic energy of wind into mechanical energy. This invention incorporates a wind collector that is rotated upon an elevated turntable in order to...
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5230606 |
Electric fan with hot air/cold air dual-mode control
An electric fan includes a vane assembly fastened to a hub connected to a base plate in front of a motor output shaft of the motor by a connector and two bearings, which vane assembly is consisted...
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5224826 |
Piezoelectric helicopter blade flap actuator
Electrically deformable material such as piezoelectric material is used to deform a deflectable flap on an airfoil such as a helicopter blade. The electrically deformable material is controlled to...
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5207558 |
Thermally actuated vane flow control
Thermally actuated flow diverters for gas turbine engines are provided which include an arrangement of vanes in spaced overlapping array, which direct, e.g. coolant air flow to rotating engine...
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5174717 |
Cable harness and mounting hardware for propeller deicer
A wiring harness is provided with connectors which are electrically and physically attached to terminal wires extending from the electrical resistance deicer heater and cables extending from a...
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5020741 |
Aircraft propeller with improved electrically de-icer leads
A multiple blade aircraft propeller hub has a bulkhead supporting concentric slip rings connected by slide blocks to the aircraft electrical system. Electrical conducting flexible leads connect the...
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5007742 |
Temperature-sensing member
Disclosed is a temperature-sensing member including a columnar or hollow cylindrical base having a configuration of a circular or polygonal column or a hollow circular or polygonal cylinder; and at...
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4969799 |
Blower fan blade
Each blade of a blower fan has a parallel wire group for each side whose thermal expansion coefficient is smaller than that of the blade. The two parallel wire groups are provided substantially...
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4802823 |
Stress relief support structures and assemblies
An improved design for a structure such as a turbine vane or blade subjected to extreme temperature levels and/or gradients resulting in extreme deformation stresses within the structure. The...
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4778339 |
Fan blade
A fan blade which makes use of the difference in the thermal expansion coefficient to enable the angle of attack to be variable without a substantial change in the camber quantity and without the...
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4752183 |
Water pump
A water pump having a pump impeller and a cup-like disk disposed to be movable along a rotation shaft driven by the engine, a space for passing water being formed between the pump impeller and the...
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4752182 |
Device for the open- or closed-loop control of gas turbine engines or turbojet engines
This invention covers elements, such as guide walls, shut-off flaps, flow dividers and vanes, arranged on or in flow ducts energized with compressor and/or fan air, where said elements are variably...
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4730982 |
Assembly for controlling the flow of cooling air in an engine turbine
A blade root sockets provided in the discs of a turbine rotor have passages for cooling air which are arranged to be variably blocked by closure means carried by the upstream and downstream ends of...
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4700541 |
Shape memory alloy actuator
An electrically controlled shape memory alloy actuator capable of being miniaturized for use in robotics and other fields. The actuator is made of a shape memory alloy wire which is torsioned end...
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4653988 |
Temperature switch mounting means for a function-monitoring fan
An improved mounting system for attaching a temperature switch to a fan structure is disclosed having a housing which may be directly attached to the protective grille of the fan. The housing may...
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