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公开(公告)号：US11613976B2
公开(公告)日：2023-03-28
申请号：US17401512
申请日：2021-08-13
摘要： A method of improving natural gas recovery from a subterranean hydrocarbon reservoir includes at least one renewable energy source that is electrically coupled with a heat conducting element. The heat conducting element is positioned in a perforated section of a wellbore that traverses into the subterranean hydrocarbon reservoir. A temperature of the subterranean hydrocarbon reservoir is maintained above a cricondentherm temperature so that liquid condensation may be prevented at a final production time. In order to maintain the temperature within a required temperature range, an internal temperature, an internal pressure, and a set of reservoir properties are monitored and then utilized to plot a phase diagram that can be used to detect liquid condensation. If liquid condensation is detected, an electrical output of the renewable energy source is adjusted in order to control the temperature of the subterranean hydrocarbon reservoir at a producing end of a production tubing.
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公开(公告)号：US20230027336A1
公开(公告)日：2023-01-26
申请号：US17781618
申请日：2020-11-27
摘要： Provided is an evaporation apparatus configured to form an organic layer made from organic material on a substrate, the apparatus including: a container configured to contain the organic material, at least a portion of which is composed of conductor; a heating coil disposed around the container; a DC power supply; an inverter connected to the DC power supply; a primary coil connected to the inverter; and a secondary coil connected to the heating coil, wherein the primary coil and the secondary coil form a matching transformer.
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公开(公告)号：US11533787B2
公开(公告)日：2022-12-20
申请号：US16145298
申请日：2018-09-28
申请人： LG Electronics Inc.
发明人： Hyunwook Moon , Eui Sung Kim , Byeong Wook Park
摘要： An induction heating and wireless power transferring device that includes: a first working coil and a second working coil that are coupled in parallel; a rectification unit configured to rectify alternating current (AC) power to direct current (DC) power; a first inverter unit configured to convert the DC power into resonant current, and apply the converted resonant current to the first working coil or the second working coil; a first switch coupled to the first working coil and configured to turn on or off the first working coil; a second switch coupled to the second working coil and configured to turn on or off the second working coil; and a control unit configured to control the first inverter unit, the first switch, or the second switch to detect whether a target object is located on the first working coil or the second working coil.
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公开(公告)号：US11525346B2
公开(公告)日：2022-12-13
申请号：US17401638
申请日：2021-08-13
摘要： A method of improving natural gas recovery from a subterranean hydrocarbon reservoir includes at least one renewable energy source that is electrically coupled with a heat conducting element. The heat conducting element is positioned in a perforated section of a wellbore that traverses into the subterranean hydrocarbon reservoir. A temperature of the subterranean hydrocarbon reservoir is maintained above a cricondentherm temperature so that liquid condensation may be prevented at a final production time. In order to maintain the temperature within a required temperature range, an internal temperature, an internal pressure, and a set of reservoir properties are monitored and then utilized to plot a phase diagram that can be used to detect liquid condensation. If liquid condensation is detected, an electrical output of the renewable energy source is adjusted in order to control the temperature of the subterranean hydrocarbon reservoir at a producing end of a production tubing.
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公开(公告)号：US20220304118A1
公开(公告)日：2022-09-22
申请号：US17682760
申请日：2022-02-28
摘要： A DC powered cooking appliance which uses an induction or a resistance based DC heating element and excludes AC powered heating elements and preferably does not rely on directly connected combustion powered heating elements. Some embodiments include wattage of 1500 watts or less, voltages of 40 or 48 volts or more and are installed on a boat, van, rv or bus such that an inverter of that boat, van, rv or bus is not electrically connected to the cooking appliance.
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公开(公告)号：US20220248506A1
公开(公告)日：2022-08-04
申请号：US17588909
申请日：2022-01-31
申请人： LG Electronics Inc.
发明人： Byeong Geuk Kang , Younseok Jang
摘要： The induction heating apparatus includes a current conversion circuit, a first working coil whose one end is connected to the current conversion circuit, a second working coil whose one end is connected to the current conversion circuit or the other end of the first working coil, a working coil base that accommodates the first working coil and the second working coil, a resonance capacitor that connects to the other end of the second working coil, a first relay that adjusts a connection between the other end of the first working coil and the resonance capacitor, a second relay that selectively connects one end of the second working coil to any one of the other end of the first working coil and the current conversion circuit, and a controller that controls the first relay's and the second relay's connections.
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公开(公告)号：US11336195B2
公开(公告)日：2022-05-17
申请号：US16765039
申请日：2018-11-19
申请人： NETUREN CO., LTD.
发明人： Takahiko Kanai , Haruki Yoshida
摘要： A power conversion apparatus includes a rectifier to convert AC power into constant-current DC power, a resonant inverter to convert the DC power into AC power to be output to a load, and a control unit to receive settings of an output current value of the inverter, a current-supplying time of the inverter, an operation rate defined by dividing the current-supplying time by a sum of the current-supplying time and a non-current-supplying time, and a resonance frequency of the load. The control unit operates the rectifier and the inverter only when it determines that it is operable to perform an output in accordance with the set conditions, based on data in which the output frequency, the current-supplying time and the operation rate are associated with an allowable output current value of the inverter at a temperature equal to or lower than a maximum operable temperature of a switching device.
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公开(公告)号：US20220015199A1
公开(公告)日：2022-01-13
申请号：US17037599
申请日：2020-09-29
发明人： Thiam-Wee TAN , Cheng-Chung LI , Chun CHANG , Yu-Min MENG
摘要： A heating device includes a first capacitor, a first switch, a second switch, a second capacitor, a third capacitor, a coil and a controller. The first and second switch are coupled in series at a first node, and are coupled with the first capacitor in parallel. The second capacitor is coupled to the first switch. The third capacitor is coupled to the second switch, and is coupled to the second capacitor at a second node. The coil is coupled between the first and the second node. The controller outputs a first and a second control signal to the first switch and the second switch, respectively. After the heating device received a voltage and a starting command, the controller outputs the first and the second control signal to turn on or off the first and the second switch respectively. The duty cycle of the first signal is lower than 50%.
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公开(公告)号：US11168552B2
公开(公告)日：2021-11-09
申请号：US16665685
申请日：2019-10-28
摘要： A method of improving natural gas recovery from a subterranean hydrocarbon reservoir includes at least one renewable energy source that is electrically coupled with a heat conducting element. The heat conducting element is positioned in a perforated section of a wellbore that traverses into the subterranean hydrocarbon reservoir. A temperature of the subterranean hydrocarbon reservoir is maintained above a cricondentherm temperature so that liquid condensation may be prevented at a final production time. In order to maintain the temperature within a required temperature range, an internal temperature, an internal pressure, and a set of reservoir properties are monitored and then utilized to plot a phase diagram that can be used to detect liquid condensation. If liquid condensation is detected, an electrical output of the renewable energy source is adjusted in order to control the temperature of the subterranean hydrocarbon reservoir at a producing end of a production tubing.
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公开(公告)号：US11160144B2
公开(公告)日：2021-10-26
申请号：US16198252
申请日：2018-11-21
发明人： Anthony V. Salsich , Paul Verhagen
摘要： In some examples, an induction heating system includes an induction heating power supply and an induction heating tool configured to receive induction heating type power from the induction power supply through a modular transformer. In some examples, the modular transformer comprises a first coupler (e.g., a power receptacle) and a second coupler (e.g., a power insert) configured to couple together to complete the modular transformer, and/or decouple to separate the modular transformer. In some examples, the first coupler is in electrical communication with the induction heating power supply, and the second coupler is in electrical communication with the induction heating tool. When the first and second couplers are coupled together to complete the modular transformer, induction heating power flows through the modular transformer from the induction heating power supply to the induction heating tool.
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