Entries |
Document | Title | Date |
20080203087 | METHOD FOR OPERATING AN INDUCTION HEATING DEVICE - The invention relates to a method for operating an induction heating device. The induction heating device comprises an induction coil and a frequency converter for producing a control voltage for the induction coil. The frequency converter comprises a rectifier rectifying an alternating supply voltage (UN), an intermediate circuit capacitor, looped in between output terminals of the rectifier and equalizing the rectified voltage (UG), and at least one controllable switching element, looped in between the output terminals of the rectifier. According to the invention, in a predetermined discharge interval (INT) before a zero crossing (ND) of the alternating supply voltage (UN), the intermediate circuit capacitor is discharged to a threshold value by controlling the at least one switching element before the induction coil is controlled in order to produce an adjustable heating capacity. | 08-28-2008 |
20090071953 | INDUCTION HEATING ELEMENT MADE OF GLASSY CARBON, HEATING DEVICE AND HEATER - A glass-like carbon induction heating element having high heating efficiency and a heating apparatus are provided. A glass-like carbon induction heating element, which inductively generates heat by electromagnetic induction, has an infrared radiation characteristic that a ratio (E | 03-19-2009 |
20090071954 | Induction Tempering Method, Induction Tempering Apparatus, and Induction Tempered Product - An induction tempering method allowing the tempering condition to be determined readily and the quality of a workpiece stabilized includes a heating temperature control step, and a heating time control step. The heating temperature control step includes a heating temperature control related temperature measurement step, a heating temperature adjustment step, and a heating step. The heating time control step includes a heating time control related temperature measurement step, a heating time adjustment step, and a heating end step. At the heating time adjustment step, a tempering time t to determine the timing in ending heating of the workpiece is calculated based on the following equation (A). | 03-19-2009 |
20090152260 | INDUCTION HEATING DEVICE - An induction heating device includes a top plate arranged to have an object placed thereon, a heating coil receiving a high-frequency current to inductively heat the object, an infrared ray sensor for outputting a signal in accordance with energy of received infrared ray, a temperature detector for detecting a temperature of the object based on the signal output from the infrared ray sensor, a heating controller for controlling the high-frequency current supplied to the heating coil based on the detected temperature, and a failure determining unit for determining whether the infrared ray sensor has a failure or not. This induction heating device can detect the failure of the infrared ray sensor, and thus stops or suppresses the heating upon detecting the failure of the infrared ray sensor. | 06-18-2009 |
20090194526 | RADIO FREQUENCY ANTENNA FOR HEATING DEVICES - The present invention provides an improved antenna assembly ( | 08-06-2009 |
20100078426 | Apparatus and method for maintaining a urea solution in a liquid state for treatment of diesel exhaust - A system for keeping a solution of urea in a liquid state comprising a tank having a level sensing apparatus, inlet and outlet tubes for supplying and withdrawing urea solution, and a plurality of non-contact heating elements disposed in vertical relationship to one another. Preferably, the heating elements are infrared (IR) radiative coils encased in IR-transparent quartz tubes. In one embodiment, each heating element represents a horizontally defined heating zone. When the reservoir tank is full and predetermined temperature conditions are met, all of the heaters are on, each heater irradiating its own horizontal zone. As zones are progressively emptied during consumption of the urea solution, as determined by the level sensor, each respective zone heater is de-energized. Because each horizontal zone is heated by a single heater, the solution is maintained at a substantially uniform temperature over the full depth of the tank without localized overheating. | 04-01-2010 |
20100108665 | INDUCTION HEATING SYSTEM AND INDUCTION HEATING METHOD OF METAL PLATE - A system for induction heating a metal plate passing through an inside of an induction coil, which induction heating system arranging at least two sections of the induction coil adjacent in a longitudinal direction of said metal plate, wherein when vertically projecting the induction coil of the front surface side and back surface side of said metal plate onto said metal plate, said front surface side and back surface side conductors are arranged offset so as not to overlap in the longitudinal direction of said metal plate in that vertical projection, further, said front surface side conductors being in proximity and said back surface side conductors being arranged having a distance apart more or said back surface side conductors being in proximity and said front surface side conductors being arranged having a distance apart more, said induction heating system able to control the heating temperature distribution even for thin metal plate without regard to being magnetic or nonmagnetic, in particular an induction heating system able to control the temperature at the ends of the metal plate, and an induction heating method for the same. | 05-06-2010 |
20100147831 | Hardening method and hardening device - An object of the present invention is to provide a hardening method and a hardening device capable of successfully hardening a shaft and an inner wall of a hole of a work in which the hole is formed close to the shaft on a flat plate. A hardening device for hardening a shaft and an inner wall of a hole, the shaft extending vertically from a flat plate and the hole being formed adjacent to the shaft, includes a first heating coil that is a conductive body facing the shaft and a second heating coil that is a helical conductive body having at least a portion inserted into the hole, so that the first heating coil and the second heating coil heat the shaft and the inner wall of the hole respectively and simultaneously. | 06-17-2010 |
20100219177 | ELECTROMAGNETIC INDUCTION TYPE HEATING DEVICE, HOT AIR GENERATING DEVICE AND ELECTRICAL POWER GENERATING DEVICE - Permanent magnets are arranged at the interior of a rotating body at uniform intervals. The device comprises: a rotating body which is rotated by a motor; a heat generation part, which is disposed in the vicinity of the rotating body, which includes an electroconductive material, and which is disposed within the magnetic fields of the permanent magnets; and a hot air capture plate, which is disposed in the vicinity of the heat generation part, and in which a plurality of hot air flow passage holes are provided, the rotating body being rotated by a rotating shaft, which is coupled to the motor. Furthermore, a thermocouple may be connected to the heat generation part, and the heat energy that would be dissipated to the outside air is converted to electrical energy by the thermocouple. Furthermore, the electromagnetic induction device is constituted such that a hot air capture plate, in which a plurality of hot air flow passage holes are provided, is disposed in the vicinity of the heat generation part. | 09-02-2010 |
20100282737 | INDUCTION HEATER COMPRISING A CIRCULAR INDUCTOR COIL - An induction heating element including a circular inductor coil that has a circular outer contour and a ferrite element arrangement that has at least one ferrite element with a radially outer edge. At least at one curvature point, the radially outer edge of the ferrite element is curved to a greater degree than the circular outer contour of the inductor coil. | 11-11-2010 |
20100301036 | METHODS AND APPARATUS FOR STRESS RELIEF USING MULTIPLE ENERGY SOURCES - Methods are presented for modifying a physical property of a structure, such as reducing or relieving remaining internal stress, in which two or more energy types are concurrently applied to the structure to change the physical property of interest in an accelerated fashion. A first energy type, such as heat, is applied according to time values and operational settings derived from a first order rate relationship for the first energy type and from a first order rate relationship for a second energy type. The second energy type, such as vibration or other time-varying energy form, is applied concurrently for the time value. Methods are also provided for determining operational settings for concurrent application of multiple energy types to a structure. | 12-02-2010 |
20100314383 | Device for Tempering a Test Fluid - A device for tempering a test fluid includes an electric heating device for heating the test fluid, a sensor for detecting a measuring value associated with the temperature of the test fluid, and an electronic control device for controlling the heating device in dependence upon the measuring value. The heating device includes an induction generator, connected to a power supply, for the inductive heating of a heating element which is connected, in a heat-conducting manner, to the test fluid and/or to a container for the test fluid, and the sensor is a sensor measuring in a contact-less manner. | 12-16-2010 |
20110006055 | Apparatus for the Inductive Heating of Oil Sand and Heavy Oil Deposits by way of Current-Carrying Conductors - An apparatus for the inductive heating of oil sand and heavy oil deposits by way of current-carrying conductors is provided. The conductors include individual conductor groups, wherein the conductor groups are designed in periodically repeating sections of defined length defining a resonance length, and wherein two or more of the conductor groups are capacitively coupled. In this way, each conductor can be advantageously insulated and may include a single wire. | 01-13-2011 |
20110036830 | HEAT TREATING METHOD OF ROLLING BEARING DEVICE FOR WHEEL AND COOLING UNIT FOR INNER SHAFT - In the heat treating method, a raceway surface of an outer ring is subjected to heat treatment, while an entirety of an outer peripheral face of the outer ring is cooled by injecting water. Moreover, a raceway surface of an inner shaft is subjected to heat treatment, while a flange of the inner shaft is cooled by bringing it into contact with water. The cooling unit has a holding part for holding the flange while the flange is in contact with water. | 02-17-2011 |
20110132897 | HEATING DEVICE AND HEATING METHOD - A heating device and a heating method which is able to quickly and accurately partition each region of a material to be heated and heat up each of the region to a required temperature, and a shape and required temperature of each region is different from each other. A heating device for heating a material to be heated by applying an electromagnetic wave to the material, wherein a plate member(s) which shields, absorbs and/or reflects the irradiated electromagnetic radiation and has a predetermined pattern contour can be placed, at least partially, close to the material to be heated. | 06-09-2011 |
20110168693 | METHOD AND APPARATUS FOR DETERMINING A WELDING PROCESS PARAMETER - A method of determining a welding process parameter for an object comprises subjecting a specimen removed from the object to a controlled specimen welding process, measuring a property of the specimen, and determining a welding process parameter associated with the object from the measured specimen property and the controlled specimen welding process. In one disclosed embodiment the method permits the determination of a welding process parameter of a full scale pipe by use of a specimen removed from the pipe, or a similar pipe. | 07-14-2011 |
20110248019 | METHOD FOR TREATING HYDROCARBON FLUIDS USING PULSATING ELECTROMAGNETIC WAVE IN COMBINATION WITH INDUCTION HEATING - A method for treating hydrocarbon fluids using pulsating electromagnetic wave in combination with induction heating is provided, which comprise the steps of mounting an induction coil onto a conduit having a central axis from which the hydrocarbon fluid to be treated flows, the induction coil being coaxially disposed with the conduit and having an inner diameter which forms a predetermined gap with an outer periphery of the conduit; subjecting the hydrocarbon fluid through the conduit; and applying a time-varying frequency current to the induction coil to produce pulsating electromagnetic field and induction heating around the induction coil, such that the combined effect of the pulsating electromagnetic field and the induction heating is induced in the fluid to prevent and/or reduce build-up of or natural deposition of paraffin, asphaltene or the like contained in the fluid and reduce a viscosity of the fluid in production lines, flow transmission lines, pipelines and oil storage. | 10-13-2011 |
20110253705 | TEMPERATURE CONTROLLING DEVICE OF ELECTROMAGNETIC HEATING TYPE IMPLEMENTATION - A temperature control device for an electromagnetic heating apparatus is provided with a panel ( | 10-20-2011 |
20120012575 | Radio Frequency Heating Fork - An apparatus for heating a target comprises a radio frequency heating fork having two substantially parallel tines, the substantially parallel tines electrically connected at a loop end of the radio frequency heating fork, and the substantially parallel tines separated at an open end of the radio frequency heating fork, and a feed coupler connection, the feed coupler connection connecting a power source across the substantially parallel tines of the radio frequency heating fork. The application of power across the substantially parallel tines of the radio frequency heating fork results in induction heating near the loop end of the radio frequency heating fork, and dielectric heating near the open end of the radio frequency tuning fork. A target can be positioned relative to the heating fork to select the most efficient heating method. The heating fork can provide near fields at low frequencies for deep heat penetration. | 01-19-2012 |
20120024839 | HIGH FREQUENCY INDUCTION HEATING TREATMENT EQUIPMENT AND METHOD AND INDUCTION HEATED AND THUS TREATED PRODUCT - To provide a heat treatment providing a product with quality as desired, high frequency induction heating treatment equipment capable of temperature control to provide such heat treatment includes temperature controlling means for adjusting in temperature an object to be treated, and quenching means for determining when the object heated should be cooled. The temperature controlling means includes heating means, temperature measuring means involved in temperature control, and temperature adjusting means. The quenching means includes temperature measuring means involved in quenching, and heat treatment adjusting means. | 02-02-2012 |
20120080423 | ELECTROMAGNETIC INDUCTION HEATING ELEMENT AND FIXING BELT - Disclosed is an electromagnetic induction heating element provided with a first heating layer ( | 04-05-2012 |
20120125916 | TEMPERATURE CONTROL DEVICE FOR OPTOELECTRONIC DEVICES - Current may be passed through an n-doped semiconductor region, a recessed metal semiconductor alloy portion, and a p-doped semiconductor region so that the diffusion of majority charge carriers in the doped semiconductor regions transfers heat from or into the semiconductor waveguide through Peltier-Seebeck effect. Further, a temperature control device may be configured to include a metal semiconductor alloy region located in proximity to an optoelectronic device, a first semiconductor region having a p-type doping, and a second semiconductor region having an n-type doping. The temperature of the optoelectronic device may thus be controlled to stabilize the performance of the optoelectronic device. | 05-24-2012 |
20120138596 | INDUCTIVELY HEATED HOB HAVING A METAL-COATED COVER PLATE - A hob includes at least one heating inductor and a glass or glass ceramics cover plate that has at least one side coated with a metal layer coated with a metal layer. In order to improve the electromagnetic compatibility of the hob with a metal layer coating, the metal layer has a cover region which covers the heating inductor and is electrically insulated from a surrounding region of the metal layer, which surrounding region surrounds the cover region. | 06-07-2012 |
20120160827 | CARBON STRAND RADIO FREQUENCY HEATING SUSCEPTOR - A method for heating materials by application of radio frequency (“RF”) energy is disclosed. For example, the disclosure concerns a method and apparatus for RF heating of petroleum ore, such as bitumen, oil sands, oil shale, tar sands, or heavy oil. Petroleum ore is mixed with a substance comprising mini-dipole susceptors such as carbon strands. A source is provided which applies RF energy to the mixture of a power and frequency sufficient to heat the mini-dipole susceptors. The RF energy is applied for a sufficient time to allow the mini-dipole susceptors to heat the mixture to an average temperature greater than about 212° F. (100° C.). Optionally, the mini-dipole susceptors can be removed after the desired average temperature has been achieved. The susceptors may provide advantages for the RF heating of hydrocarbons, such as higher temperatures (sufficient for distillation or pyrolysis), anhydrous processing, and greater speed or efficiency. | 06-28-2012 |
20120193349 | HEATING LAYERS CONTAINING VOLATILE COMPONENTS AT ELEVATED TEMPERATURES - A heating apparatus and methods for locally heating at least one layer composition including one or more volatile compounds is disclosed. The apparatus and methods allow for higher performance thin film electronic materials and novel thin film electronic materials to be manufactured including thin film photovoltaic cells. | 08-02-2012 |
20120199577 | Method for Performing a Phase Conversion - A method for performing a phase transition, in particular a melting process, by heating a carrier medium containing or constituting a phase change material in a reactor, the carrier medium being brought into contact with a solid heating medium that can be heated by electromagnetic induction and that is contained in the reactor and is surrounded by the carrier medium, and heating the heating medium by electromagnetic induction by means of an inductor, the phase change material undergoing a phase transition and the carrier medium being separated from the heating medium after the phase transition. This preferably takes place in a continuous-flow reactor. The inductor preferably generates an alternating field having a frequency in the range from 1 to 100 kHz. | 08-09-2012 |
20120205364 | METHOD FOR HEATING A WORKPIECE AND A CORRESPONDING TOOL - A method and a corresponding tool for heating a metallic workpiece. In the method, the metallic piece is heated in a machine tool by attaching thereto an induction heating tool comprising a permanent magnet structure and by rotating and/or moving the metallic piece to be heated and the induction heating tool relative to each other at a suitable distance. In this case, heating eddy currents are induced in the piece, wherein the energy needed for heating is obtained from the motor of the machine tool. | 08-16-2012 |
20120217235 | SURFACE TREATMENT SYSTEM, A SURFACE TREATMENT PROCESS AND A SYSTEM TREATED COMPONENT - A system, process, and component are disclosed. The system and process involve an induction heater arranged and disposed to heat a component to form a heated surface and a nozzle arrangement positioned to apply a fluid to the heated surface to form a processed surface of a component. The processed surface includes compressive residual stress resulting in increased resistance to fatigue, including fretting fatigue, for the component. | 08-30-2012 |
20120234824 | Heating Apparatus, Heat Treatment Apparatus, and Heating Method - A heating apparatus, a heat treatment apparatus, and a heating method are provided. The heating apparatus includes a workpiece support on which a ring-shaped workpiece is placed, a rotary drive assembly, and a heater configured to heat the workpiece. The workpiece support includes a plurality of rotating rollers arranged in a circumferential direction. The rotary drive assembly is configured to rotate the plurality of rotating rollers to rotate the workpiece placed on the workpiece support along a ring shape of the workpiece. The heater includes a heating coil configured to induction-heat the workpiece on the workpiece support at a heating position, and an actuator configured to move the heating coil at the heating position relative to the workpiece to adjust a distance between the workpiece and the heating coil. | 09-20-2012 |
20120241440 | Electromagnetic Wave Reducing Heater - A heater with reduced electromagnetic wave emissions, comprising two heating elements separated by an insulating layer and receiving opposite-phase alternating current in a way that cancels out electromagnetic wave emissions. | 09-27-2012 |
20120248093 | INDUCTION HEATING WIRE INSULATION HEATING AND REMOVAL - This disclosure relates generally to removing wire insulation. In an embodiment, a system for heating and removal of wire insulation includes a power supply configured to receive input power and to provide a high frequency power output to an induction coil. The induction coil is to be coupled to the power supply and dimensioned to receive an insulated wire therethrough. The induction coil is also to produce a field based upon the high frequency power output to heat the wire by induction and to condition insulation disposed on an outer surface of the wire for removal. | 10-04-2012 |
20130062339 | PIPE REMOVAL TOOL AND METHOD - A tool to supply heat to a PEX pipe to permit the PEX pipe to be removed from a fitting connection includes a thermal element that can supply heat to the PEX pipe. The thermal element may be heated via electrical processes, such as resistive or inductive heating, or may be heated with a combustion process. The thermal element may be implemented in a pliers to permit the heating element to be placed around the PEX pipe and clamped, to allow the user to pull the PEX pipe off the fitting connection using the pliers. The tool may have a temperature control to regulate an amount of heat provided to the PEX pipe during removal, which control may include a feedback transducer, such as a thermocouple. The tool may be operated with AC or DC power, where the DC power may be provided by one or more batteries. | 03-14-2013 |
20130062340 | Centrifugal Magnetic Heating Device - A centrifugal magnetic heating device includes a power receiving mechanism and a heat generator. The power receiving mechanism further includes a vane set and a transmission module. The heat generator connected with the transmission module further includes a centrifugal mechanism connected to the transmission module, a plurality of bases furnished on the centrifugal mechanism, a plurality of magnets furnished on the bases individually, and at least one conductive member corresponding in positions to the magnets. The vane set is driven by nature flows so as to drives the bases synchronically with the magnets through the transmission module, such that the magnets can rotate relative to the conductive member and thereby cause the conductive member to generate heat. | 03-14-2013 |
20130068756 | METHOD AND APPARATUS FOR HEATING A METAL PLATE - In a method for heating a metal plate, the metal plate is placed between an lower contact element and an upper contact element. The contact elements are provided with heating units and integrated in mounts. At least one of the contact elements is shaped to suit a contour of the metal plate and made of a heat conducting material with a conductivity of at least 150 W/mK. The metal plate is heated between the contact elements to a temperature of 200° C. to 450° C. for a time period of less than 120 s in the presence of a contact pressure. | 03-21-2013 |
20130126519 | DOMESTIC APPLIANCE DEVICE - A domestic appliance device includes at least one electronics carrier unit, at least one metallic carrier unit, and at least one plug connection unit. In order to increase operational safety and reliability, the plug connection unit is provided with at least one spacer element, which distances the electronics carrier unit and the metallic carrier unit in at least one operationally ready state, in at least one direction parallel to a plug direction of the plug connection unit. | 05-23-2013 |
20130248515 | HOT GAS TORCHES, HOT GAS TORCH SYSTEMS AND HOT GAS HEATING METHODS - Hot gas torches include a nozzle that includes an internal conduit that extends between an inlet end and an outlet end and a heating unit disposed external the internal conduit, wherein the heating unit heats the internal conduit such that a gas that enters the internal conduit at the inlet end is heated before it exits the internal conduit at the outlet end. | 09-26-2013 |
20140014647 | INDUCTION COOKTOP PAN SENSING - An induction heating system includes an induction heating coil operable to inductively heat a load with a magnetic field; a detector for detecting a current through the coil and providing a current signal representative of the current; and a controller with a memory in communication with a processor. The memory includes program instructions for execution by the processor to detect a presence of the load on the induction heating coil based on a characteristic of the current signal; determine a resonant frequency of the system with the load from a characteristic of the current signal; determine operational performance characteristics of the system; and output an indication of the operational performance characteristics of the system. | 01-16-2014 |