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496 results about "De-ice" patented technology
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De-icing is the process of removing snow, ice or frost from a surface. Anti-icing is understood to be the application of chemicals that not only de-ice but also remain on a surface and continue to delay the reformation of ice for a certain period of time, or prevent adhesion of ice to make mechanical removal easier.
Power Line De-Icing Apparatus
InactiveUS20100243633A1Efficient removalWeaken layerOverhead installationOhmic-resistance heatingChiselEngineering
A power line de-icing apparatus that incorporates both thermal and mechanical means to remove various forms of accumulated ice or wet snow from power lines. The apparatus uses a minimum amount of energy to first de-bond and then break off ice from the power line; using far less power than required to fully melt ice. The apparatus operates autonomously, activating heating and chisel mechanisms, and moving between power line support towers in response to both temperature and ice sensor inputs. This operation is repeated in both directions along the power line as long as icing continues to activate the sensors; removing ice more quickly than it can accumulate and thereby preventing mechanical or electrical damage to the power lines and supporting towers. The apparatus is self contained and powered inductively from the power line. It is installed onto the power line without the need for disconnecting the power line.
Owner:HUYNH TUNG +2
Power line de-icing apparatus
InactiveUS8373095B2Maintaining distance between parallel conductorsSuspension arrangements for electric cablesElectric forceProximity sensor
Owner:HUYNH TUNG MINH +2
Method and device for de-icing conductors of a bundle of conductors
InactiveUS6018152AThe process is simple and effectiveOverhead installationBus-bar/wiring layoutsCurrent loadElectrical conductor
A method and device for removing ice from overhead conductors of a bundle of conductors or preventing an accumulation of ice on these conductors. The method includes forcing the entire current load of the line in one or a portion of the conductors, the excessive power dissipated in this manner de-ices the conductor by Joule heating. The method is repeated for different conductors of the bundle until they have all been de-iced or for the entire duration of an ice storm. Electric power units are provided on each conductor to control the current circulation as needed, and a command module controls the entire system. Conducting elements are provided at the beginning and at the end of the line to allow a distribution of the current as needed.
Owner:ALLAIRE MARC ANDRE +1
Anti-icing, de-icing, and heating configuration, integration, and power methods for aircraft, aerodynamic, and complex surfaces
ActiveUS20140070054A1Reduce weightEfficiency advantageMaterial nanotechnologyDe-icing equipmentsElectricityElectrical resistance and conductance
Anti-icing methods and aerodynamic structures having laminated resistive heaters for de-icing are described. Several of the inventive aspects utilize laminated resistive heaters comprising a carbon nanotube layer and / or capacitors to store and supply electricity. The invention also includes methods of making aerodynamic structures having de-icing or anti-icing functionality.
Owner:BATTELLE MEMORIAL INST
Automobile windscreen cleaning agent
InactiveCN101041793AEasy to cleanDelay agingNon-ionic surface-active compoundsOrganic detergent compounding agentsCleansing AgentsSolvent
The invention discloses a cleaning agent of windscreen for car, which is characterized by the following: allocating alcohol, surface activator, inhibitor, de-icing film former, dye and water; producing the cleaning agent. This invention can delay rubber age of rain scraper and extend durability of windscreen, which is an environment-friendly type cleaning agent.
Owner:BEIJING JIAOTONG UNIV
De-iced gutter debris preclusion system
ActiveUS20100287846A1Prevent icicle formationAvoid damageRoof coveringPipesElectrical resistance and conductancePower flow
The system includes a substantially rigid body providing underlying support for a filtering layer, such as in the form of a screen. The body includes a heating wire or other heat source coupled thereto with the body formed of heat conductive material. The body is configured with multiple ribs extending up from a floor so that heat transfer from the body to the screen can occur in a variety of different locations to keep the screen sufficiently heated. The body also includes a wing for interfacing with roofing and openings to allow water filtering through the screen to migrate down into the gutter. A cover overlies a channel which can contain one or more heating wires that experience resistive heating when an electric current is applied thereto.
Owner:ALL WEATHER ARMOUR LLC
Self-made heat conductor and heating equipment into which insulating heat conduction material is embedded and implementation method of self-made heat conductor and heating equipment
PendingCN108366442AHeating evenlyLow costOverhead installationHeating element shapesElectrical conductorEngineering
Owner:SICHUAN UNIV +1
Uniform Heat Distribution in Resistive Heaters For Anti-Icing and De-Icing
ActiveUS20160221680A1Prevent freezingImprove protectionWindingsDe-icing equipmentsElectrical resistance and conductanceAdhesive
The concept of the present invention describes configurations to provide uniform heat distribution of resistive heaters. This configuration allows successful anti-icing and deicing with relatively low applied power. One aspect involves the use of a thin film heater applied just underneath the topcoat to efficiently direct all heat to the surface, allowing anti-icing and de-icing with minimal power. This can be accomplished by employing a hybrid electrode interface, using a metal foil or metal braid that is attached to the aircraft surface with a structural adhesive that has been smoothed along the edges with metal-filled adhesive. Another aspect of the present invention uses an array of heater cells created as a single sheet and a heat spreading material, provided underneath or overtop of the heater cells.
Owner:BATTELLE MEMORIAL INST
Modular anti-icing/de-icing device for an aerodynamic surface
InactiveUS20050184193A1Overcome limitationsPropellersCoolant flow controlJet aeroplaneFlight vehicle
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 anti-icing / de-icing modules 17, with each module 17 being provided with a respective heater element 54. In addition, the heater elements 54 of the modules 17 are powered electrically by a common electrical power supply member 1, each anti-icing / de-icing module acting against icing in its own zone independently of the other module(s).
Owner:EUROCOPTER
Heat exchanger arrangement
InactiveUS7810312B2Reduce static pressureTurbine/propulsion engine coolingEfficient propulsion technologiesNacelleEngineering
In certain circumstances recovery of a fluid flow presented through a heat exchanger into another flow can create problems with respect to drag and loss of thrust. In gas turbine engines heat exchangers are utilized for providing cooling of other flows such as in relation to compressor air taken from the core of the engine and utilized for cabin ventilation and de-icing functions. By providing an outlet valve through an outlet duct in a wall of a housing the exhaust fluid flow from the heat exchanger can be returned to the by-pass flow with reduced drag effects whilst recovering thrust. The valve may take the form of a flap displaceable into the by-pass flow before an exit plan to create a reduction in static pressure drawing fluid flow through the heat exchanger.
Owner:ROLLS ROYCE PLC
Method and a device for de-icing an aircraft wall
InactiveUS20080251642A1Improve efficiencySimple methodPropellersPump componentsInductorConductive materials
A device for de-icing an aircraft wall that comprises a composite structure (47) and layer (41) of electrically conductive material, which device comprises a plurality of thin inductor elements (33 to 35) designed to extend substantially parallel to the layer of conductive material at a distance therefrom that is small enough to ensure that when the inductor is powered by an AC source of appropriate frequency, the layer or skin heats rapidly and uniformly, without significantly heating the composite structure.
Owner:EUROCOPTER
De-icing system for traffic signals
InactiveUS7211771B1Reduce and eliminate false triggeringLighting applicationsLighting heating/cooling arrangementsSnowpackMicrocontroller
A circuit is disclosed for detecting and eliminating the buildup of snow and / or ice on the viewable face of an LED traffic signal lens. The circuit measures the ambient temperature within the LED signal, and when the temperature falls to a level where snow and / or ice accumulation can occur, the circuit begins looking for snow and / or ice buildup on the lens of the LED signal. An infrared LED transmits a signal which is reflected when snow or ice is present on the lens of the traffic signal. When the reflected signal is received by an infrared receiver, it sends a signal to a microcontroller, which analyzes the signal to determine if it is a valid signal. If it is, a heater is turned on until the ice and snow are removed.
Owner:MFR & TRADERS TRUST +1
Systems and Methods for De-Icing a Gas Turbine Engine Inlet Screen and Dehumidifying Inlet Air Filters
InactiveUS20130340439A1Significant performance lossGas turbine plantsTurbine/propulsion fuel controlAir filterEngineering
A system for de-icing a gas turbine engine is provided. A manifold is coupled to an inlet screen. A first conduit is coupled to a stage of the compressor and a first input of a mixing component. A second conduit is coupled to the exhaust and a second input of the mixing component. The second conduit being adapted to extract exhaust gases without increasing the pressure at the exhaust. A third conduit is coupled to the output of the mixing component and the manifold. A method for de-icing a gas turbine engine inlet screen includes determining a current temperature at the inlet screen, and determining a desired temperature at the inlet screen. If the current temperature at the inlet screen is less than the desired temperature at the inlet screen first flow rate of an air-exhaust mixture necessary to achieve the desired inlet screen temperature is calculated. The method also includes extracting an amount of exhaust gas from a turbine exhaust subsystem without increasing a pressure at the turbine exhaust subsystem, extracting an amount of air from a compressor stage, and mixing the amount of exhaust gas with the amount of air to generate an air-exhaust mixture that is conveyed to the inlet screen.
Owner:GENERAL ELECTRIC CO
System For Secure File Access
ActiveUS20160359859A1Digital data information retrievalDigital data protectionOperational systemIp address
A virtual local file system for managing file access, such as read, write and execute, of files on local media is disclosed. An access manager, executable by the host operating system, is stored on each host de ice The access manager interacts with the local file system to control file access permissions and how processes of the host operating system execute, view or modify files accessible to the local file system. The access manager may also dynamically control file access to files on the host operating system using a file attributes repository, which may be stored locally or remotely from the host device. Exemplary attributes for defining permission to access a file include but not are limited to specific users, a time of day, a number of copies of a file an allowed process, an IP address range, and a MAC address.
Owner:CROWDSTRIKE
De-iced gutter debris preclusion system
The system includes a substantially rigid body providing underlying support for a filtering layer, such as in the form of a screen. The body includes a heating wire or other heat source coupled thereto with the body formed of heat conductive material. The body is configured with multiple ribs extending up from a floor so that heat transfer from the body to the screen can occur in a variety of different locations to keep the screen sufficiently heated. The body also includes a wing for interfacing with roofing and openings to allow water filtering through the screen to migrate down into the gutter. A cover overlies a channel which can contain one or more heating wires that experience resistive heating when an electric current is applied thereto.
Owner:ALL WEATHER ARMOUR LLC
Direct current de-icing device based on full-bridge modular multilevel converter
ActiveCN102739080ASolve the problem that cannot be adjusted in a large rangeReduce volumeOverhead installationFlexible AC transmissionFull bridgeHigh-voltage direct current
The invention discloses a direct current de-icing device based on a full-bridge modular multilevel converter. The full-bridge modular multilevel converter has a three-phase bridge structure, each phase of the converter comprises an upper bridge arm and a lower bridge arm, the upper and lower bridge arms which are respectively formed by serially connecting N full-bridge power modules end to end, and the full-bridge power modules form a chain type multilevel structure, the front ends of the first power modules of the upper bridge arms of all phases are connected to form the positive pole of a public direct current bus; the tail ends of the Nth power modules of all lower bridge arms of all phases are connected to form the negative pole of the public direct current bus; the tail ends of the Nth power modules of all upper bridge arms are connected with the front ends of the first power modules of the respective lower bridge arms of the phases by smoothing reactors; and the center of the electric reactor serves as the alternating current bus of the phase. The device has high high-voltage direct current output capacity and the direct current voltage of the device can be regulated continuously from zero; on the other hand, the fully compatible chain type scalable vector graphics (SVG) topology can realize quick dynamic reactive regulation; and the device has the combined functions of direct current de-icing and alternating current dynamic reactive compensation.
Owner:BEIJING SIFANG JIBAO AUTOMATION +1
Method for De-Icing A Blade Of A Wind Turbine, A Wind Turbine And Use Thereof
A method for de-icing a blade of a wind turbine after the wind turbine has been idle for a period of time. The method includes the steps of creating a controlled acceleration condition of the blade, and subsequently creating a controlled deceleration condition of the blade, whereby ice is shaken off the blade. A wind turbine including a rotor including at least one blade, and de-icing means for de-icing the blade wherein the de-icing means includes actuating means of the wind turbine and wherein the de-icing means further includes control means for performing a method according to any of claims 1 to 11 is also contemplated. Furthermore, the invention relates to use of a wind turbine.
Owner:VESTAS WIND SYST AS
Protector for a leading edge of an airfoil
InactiveUS20100008788A1Reduce resistanceAvoid serious impactBlade accessoriesEfficient propulsion technologiesLeading edgeParticulates
A protector for the leading edge of a rotor blade to provide enhanced erosion protection thereof. In an embodiment, the protector includes an energy absorption member attached to the rotor blade by a first adhesive bond layer and an erosion resistant member attached to the energy absorption member by a second adhesive bond layer. The erosion resistant member is operative to protect the leading edge of the rotor blade from erosion due to impacts from particulate matter, such as sand and rain. The energy absorption member is operative to absorb and disburse energy from impacts to the erosion protection member so that forces from the impacts are diminished or not transferred to the rotor blade. In another embodiment, the erosion resistant member is coated with a diamond film. As the diamond film is harder than sand, excellent resistance to wear from particulate matter and impacts rain is obtained. Other advantages provided by use of the diamond film include: 1) an ultra-smooth surface that reduces drag on the rotor blade whereby flight performance may be improved, and 2) by being ultra-smooth and chemically inert de-icing equipment may not be needed.
Owner:UNITED PROTECTIVE TECH
De-icing device for turbojet inlet guide wheel vane, vane provided with such a de-icing device, and aircraft engine equipped with such vanes
The de-icing device is intended for the vane (10) of the inlet guide wheel (4) of a turbojet (2), comprising a fixed part (12) arranged on the upstream side and a mobile flap (18) arranged on the downstream side, in which said fixed part (12) comprises a trailing edge (16) substantially in the shape of a “U”, with one of the branches (162) being located on the intrados side (I) and the other branch (164) being located on the extrados side (E). It comprises at least one emission window (202), oriented substantially along an upstream-downstream direction, and arranged along the branch (162) of the “U” located on the intrados side (I) of the trailing edge (16).The inlet guide wheel (4) vane (10) is equipped with at least such a de-icing device.The aircraft engine (2) comprises at least one vane (10) equipped with such a de-icing device.
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
Ice maker and refrigerator
ActiveCN102353193AIncrease profitSimple structureDomestic cooling apparatusLighting and heating apparatusEngineeringRefrigerated temperature
The invention discloses an ice maker, which comprises an ice-making tray and a driving component, wherein the ice-making tray comprises an ice-making tray main body and a bottom cover; the upper and lower ends of the ice-making tray main body are respectively provided with an opening; the bottom cover is connected to the opening at the lower end of the ice-making tray main body in a pivoted mode to open and close the opening at the lower end of the ice-making tray main body; a plurality of ice-making grids are formed in the ice-making tray main body; the driving component comprises a driving part and a de-icing part which is connected with the driving part; and under the driving of the driving part, the de-icing part can rotate between a first position and a second position. According to the ice maker provided by the embodiment of the invention, the structure can be simpler and more compact, an occupation space is further reduced, the utilization rate of an ice-making space can be improved, and energy consumption can be reduced. The invention also discloses a refrigerator with the ice maker.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +1
Anti-icing / de-icing system and method and aircraft structure incorporating this system
ActiveUS20090224104A1Less-energy-intensiveMaximize vibratory energyThermometer detailsMaterial analysis using sonic/ultrasonic/infrasonic wavesElectricityNacelle
The present invention provides an anti-icing / de-icing system and method using ultrasound waves for an external surface of a structure likely to be iced, such as an aircraft wing or engine nacelle, and such a structure incorporating this system. The system comprises a plurality of piezoelectric transducers with which the structure is fitted, opposite this external surface, and this system is such that it comprises means of scanning at least one matrix of elementary meshes predefined in this surface in relation to an even arrangement of a group of these transducers, these scanning means being able to focus the waves emitted by all or some of the transducers of the or each group on these meshes one after the other, via signal summing means coupled to these scanning means and able to produce, for each mesh, a summation of the signals obtained from the transducers emitting these waves.
Owner:HUTCHINSON SA
De-icing, snow melting and warming system
ActiveUS7071446B1Promote repairEasy to replaceRoof coveringElongated resistive elementTransformerLow voltage
A de-icing, snow melting and warming system is taught which utilizes a heatsink (20) consisting of a number of board strips disposed in a planer array positioned within a building structure between its exterior and interior surface. The heatsink board strips have a gap (24) therebetween in which a heating cable (42) is positioned in a continuous serpentine manner and held in place with loop clamps (44). A gap filler (48) encases the heating cable including the enclosed gap forming a homogenous closure. A low voltage power transformer (54) is attached to electrical mains providing electrical voltage reduction to the heating cable of 30 volts or less, and controls and self diagnostics regulate the power and detect anomalies within the system.
Owner:BENCH STEVEN D
Composite Structure Having an Ice Protection Device, and Production Method
ActiveUS20140151353A1Easily embedded in composite structureDe-icing equipmentsPower to electric heating circuitsIce protection systemElectricity
An ice protection system for de-icing an aircraft and / or for keeping the aircraft free of ice includes a composite structure for an aircraft component and a structural element of an aircraft with an ice protection system that is integrated in the composite structure. The ice protection system includes a flat surface-like electric heating element that is embedded in the composite structure below an outer layer of an outer surface of the aircraft component.
Owner:EADS DEUT GMBH
Multifunctional de-icing/Anti-icing system
ActiveUS20130043342A1Cost-effective and flexibleIncrease temperatureAircraft lighting protectorsDe-icing equipmentsNano structuringElectrical conductor
A de-icing / anti-icing system including at least two conductive structures embedded in an article that includes an outer surface designed as an aerodynamic surface. At least one of the conductive structures is arranged adjacent the outer surface. A control unit adapted to control the energy supply to the conductive structures for generating heat to the outer surface. A first of the conductive structures includes a first conductive nano structure and a second of the conductive structures includes a second conductive nano structure. A conductive property of the first of the conductive structures differs from a conductive property of the second of the conductive structures. The first conductive nano structure serves as a heating conductor and the second conductive nano structure serves as a heating element. The first and second conductive nano structures are embedded in a common plane of a resin layer forming the outer surface.
Owner:SAAB AB
De-icing technology for overhead transmission line
InactiveCN101431224ADoes not affect power deliveryNo change to normal operationOverhead installationNormal caseEngineering
The invention relates to an AC / DC overhead transmission line ice-melting technology which adopts split-phase conductors. When a line needs ice-melting, the load current which is evenly distributed in every split-phase conductor under normal conditions is transferred to one or more split-phase conductors; and when the centralized single conductor has the load current to a certain extent, the ice on the conductor can be melted. The deicing purpose can be realized by adopting the alternate switching manner by melting the ice on other split-phase conductors in sequence. If the manner is adopted before the line is iced, the purpose of line-icing prevention can be achieved.
Owner:WUHAN UNIV
De-iced total air temperature sensor
InactiveUS20060056489A1Degrading measurement performanceIncrease speedAircraft componentsThermometer detailsFluid intakeEngineering
A sensor for measuring a physical parameter of a fluid, in particular for measuring total air temperature, the sensor comprising: a fluid intake (1) fitted to a streamlined body (2); a duct provided in said streamlined body (2) to enable fluid flow, said duct communicating with said fluid intake; and a sensing element disposed inside said duct. The sensor is characterized in that it includes elements that give it improved measurement performance. In particular, the proposed air intake presents an inlet section which extends so as to define a sliding surface suitable for eliminating ice. The invention also provides an improved system for sucking in the boundary layer by using slots, and it also provides a ceramic sensing element that provides better thermal decoupling relative to the de-iced body.
Owner:AUXITROL
Attachable electro-impulse de-icer
InactiveUSRE38024E1Convenient to accommodateEasy to installDe-icing equipmentsRest positionEngineering
An attachable electro-impulse de-icer for de-icing an aircraft structural member includes an inductor coil disposed in proximity with the outer surface of the structural member. The coil is supported by a flexible, ice-accumulating support member (surface ply) that permits the coil to move relative to the structural member. Preferably the coil and support member are formed in an integral construction that can be attached to the leading edge of the structural member. The coil and support member are rapidly, and forcefully, displaced away from the structural member upon passing a short-duration, high-current pulse through the coil. The current flow creates an electromagnetic field that induces eddy currents in the support member (if made of metal), and the structural member (if made of metal). Upon collapse of the electromagnetic field in the coil the support member is pulled rapidly to its rest position adjacent the structural member. Alternative arrangements are provided wherein (1) a metal target is disposed in proximity with the outer surface of the coil, (2) a metal target is disposed in proximity with the outer surface of the structural member, and (3) an additional target (doubler) is attached to the inner surface of the structural member.
Owner:THE BF GOODRICH CO
Setting method of DC de-icing major loop
ActiveCN101540491AMake the most of your investmentSimple loop wiringOverhead installationPower compensationLow voltage
The invention relates to a setting method of a DC de-icing major loop, which comprises a three-phase three-winding rectiformer, a 12-pulsating rectifier device, a control protecting device, an automatic switching device and a DC side disconnecting link, wherein the link group of the three-phase three-winding rectiformer adopts D / d 0 / y11 or Y / y 0 / d11 link, two low-voltage side windings of the three-phase three-winding rectiformer misalign 30 degrees, two groups of low-voltage side three-phase outputs of the three-phase three-winding rectiformer are respectively connected to three-phase inputs of two valve groups of the 12-pulsating rectifier device, i.e. a converter; the anode output and the cathode output of the 12-pulsating rectifier device are respectively connected to a three-phase AC line needing to be de-iced through DC side switches when in a DC de-icing mode so as to form the DC de-icing major loop for performing the DC de-icing of the three-phase AC line. The invention has the functions of balancing the de-icing and operating at large-current for a long time, and can safely, conveniently and quickly de-ice; and DC de-icing once-expansion equipment can integrate the function of reactive power compensation.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
Aircraft engine nacelle ice protection system
ActiveUS7780117B2Increase power consumptionSmall sizeEngine manufactureDe-icing equipmentsIce protection systemNacelle
A nacelle inlet lip (22) for an aircraft engine (16) comprises a structural body (30) and an ice protection system (60). The ice protection system (60) comprises a plurality of ice-protectors (62, 64, 66) independently controllable to allow inner zones (52, 54, 56) to be operated in different modes, different power levels, different time intervals and / or different energy amounts. In this manner, an inner aft zone (52), an inner mid zone (54), and an inner aft zone (56) can be anti-iced and / or de-iced to best preserve desired airflow patterns, to minimize ice particle shed size, and to optimize power consumption.
Owner:THE BF GOODRICH CO
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