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公开(公告)号：US20230250965A1
公开(公告)日：2023-08-10
申请号：US18136701
申请日：2023-04-19
申请人： LYNX GRILLS, INC.
发明人： John T. FRENCH , Randall Lee DAWSON
CPC分类号： F24C3/12 , F23N1/007 , F16K31/524 , F16K31/60 , F16K31/0675 , F16K37/0025 , F24C3/103 , F24C3/126 , F23N2229/12
摘要： A system for igniting a grill can include a solenoid valve, a flame rectification sensor, an igniter, and a control circuit connected to the solenoid valve and the flame rectification sensor. The solenoid valve controls flow of gas to the grill's burner and includes a switch that closes when a handle connected to the switch opens the solenoid valve. The control circuit sends current to the solenoid valve when the switch is closed to hold the solenoid valve open. After the switch closes, the igniter is ignited. After ignition, the control circuit monitors the presence of a flame with a flame rectification sensor. If no flame is detected after a certain amount of time, the control circuit stops sending current to the solenoid valve to close the solenoid valve.
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公开(公告)号：US20240353103A1
公开(公告)日：2024-10-24
申请号：US18627443
申请日：2024-04-05
申请人： Carrier Corporation
发明人： Michael Fech
CPC分类号： F23N5/18 , F23N3/002 , F23N5/003 , F23N2005/181 , F23N2223/10 , F23N2225/06 , F23N2229/12 , F23N2900/05001 , F23N2900/05002 , F23N2900/05003
摘要： A system and method for calibrating flame current in a furnace is disclosed. The method includes initiating combustion within a combustion chamber by allowing flow of the fuel mixture to the combustion chamber; receiving, from a sensor, signals indicative of a flow rate of the air to the combustion chamber; receiving, from a flame rod sensor, signals indicative of a flame current of the combustion chamber; varying a flow rate of the air to the combustion chamber; receiving, from the flame rod sensor, responsive to varying flow rate of the air to the combustion chamber, signals indicative of a change in the flame current of the combustion chamber; and determining, based on varying flow rate of the air to the combustion chamber, and the change in flame current of the combustion chamber, a correlation between the flow rate of the air, and the flame current of the combustion chamber.
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公开(公告)号：US12111060B2
公开(公告)日：2024-10-08
申请号：US18136701
申请日：2023-04-19
申请人： LYNX GRILLS, INC.
发明人： John T. French , Randall Lee Dawson
CPC分类号： F24C3/12 , F16K31/0675 , F16K31/524 , F16K31/60 , F16K37/0025 , F23N1/007 , F24C3/103 , F24C3/126 , F23N2229/12
摘要： A system for igniting a grill can include a solenoid valve, a flame rectification sensor, an igniter, and a control circuit connected to the solenoid valve and the flame rectification sensor. The solenoid valve controls flow of gas to the grill's burner and includes a switch that closes when a handle connected to the switch opens the solenoid valve. The control circuit sends current to the solenoid valve when the switch is closed to hold the solenoid valve open. After the switch closes, the igniter is ignited. After ignition, the control circuit monitors the presence of a flame with a flame rectification sensor. If no flame is detected after a certain amount of time, the control circuit stops sending current to the solenoid valve to close the solenoid valve.
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公开(公告)号：US11662098B2
公开(公告)日：2023-05-30
申请号：US17713958
申请日：2022-04-05
申请人： LYNX GRILLS, INC.
发明人： John T. French , Randall Lee Dawson
CPC分类号： F24C3/12 , F16K31/0675 , F16K31/524 , F16K31/60 , F16K37/0025 , F23N1/007 , F24C3/103 , F24C3/126 , F23N2229/12
摘要： A system for igniting a grill can include a solenoid valve, a flame rectification sensor, an igniter, and a control circuit connected to the solenoid valve and the flame rectification sensor. The solenoid valve controls flow of gas to the grill's burner and includes a switch that closes when a handle connected to the switch opens the solenoid valve. The control circuit sends current to the solenoid valve when the switch is closed to hold the solenoid valve open. After the switch closes, the igniter is ignited. After ignition, the control circuit monitors the presence of a flame with a flame rectification sensor. If no flame is detected after a certain amount of time, the control circuit stops sending current to the solenoid valve to close the solenoid valve.
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公开(公告)号：US20240219034A1
公开(公告)日：2024-07-04
申请号：US18300151
申请日：2023-04-13
发明人： Guangrong ZHANG , Cuilong LI
CPC分类号： F24C3/122 , F23N5/242 , F24C3/042 , F23N2229/12
摘要： Disclosed are a flameout protection system and a heater. The flameout protection system includes a stove head, a double-needle electrode rod, an electromagnetic valve and a plasma controller. The stove head is provided with an ejection tube and a flame hole. The double-needle electrode rod is connected to the ejection tube, and one end of the double-needle electrode rod is close to the flame hole. The electromagnetic valve is connected to the ejection tube, and the electromagnetic valve is communicated with the flame hole. The plasma controller is electrically connected to the double-needle electrode rod, and the plasma controller is electrically connected to the electromagnetic valve.
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公开(公告)号：US11662094B2
公开(公告)日：2023-05-30
申请号：US16750468
申请日：2020-01-23
申请人： Emerson Electric Co.
发明人： John F. Broker
CPC分类号： F23N5/022 , F24H9/2035 , F23N2229/12 , F24H1/186
摘要： A gas powered water heater includes a storage tank, a main burner, a flame sensor assembly, and a controller communicatively coupled to the flame sensor assembly. The flame sensor assembly includes a probe positioned proximate the main burner to couple an electric current to the main burner through a flame on the main burner and not to couple an electric current to the main burner when the flame is not present on the main burner, and a detector that provides signals representative of the electric current provided through the probe. The controller is programmed to determine a length of time taken for a transition between a signal representative of no electric current and a signal representative of a steady state electric current, and determine, based at least in part on the determined length of time, a strength of the flame on the main burner.
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公开(公告)号：US20240295321A1
公开(公告)日：2024-09-05
申请号：US18177509
申请日：2023-03-02
申请人： Emerson Electric Co.
发明人： Harshal Manik PAWAR
CPC分类号： F23N5/123 , F23N5/003 , F23N5/242 , F23N5/265 , F23N2223/04 , F23N2229/12 , F23N2239/04
摘要： A gas powered appliance includes a main burner for burning gas, a flame sensor assembly, and a controller. The flames sensor assembly includes a probe positioned proximate the main burner to couple an electric current to the main burner through a flame on the main burner, a flame detector circuit providing a digital signal indicating presence or absence of the flame on the main burner based on the electric current, and a flame strength circuit receiving a voltage on a component of the flame detector circuit and outputting an analog signal based on the voltage. The controller is connected to the flame sensor assembly and programmed to control the main burner to receive the digital signal from the flame detector circuit, receive the analog signal from the flame strength circuit, and determine, based on the analog signal from the flame strength circuit, a strength of the flame.
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公开(公告)号：US20230341124A1
公开(公告)日：2023-10-26
申请号：US17917219
申请日：2021-03-04
发明人： Sebastian HACK
IPC分类号： F23N5/24
CPC分类号： F23N5/242 , F23N2229/12 , F23N2229/22
摘要： The present disclosure relates to a method for operating a burner assembly comprising a burner (1) burning an air-fuel mixture. In a step of the method, a target value for an ionization current is specified. The burner (1) is operated in a first operating state at a first specified power level. The ionization current (9) is measured using an ionization electrode (5). The measured ionization current (9) is compared with the predefined target value and a deviation is determined. When the deviation exceeds a predefined threshold value, the burner (1) is transitioned to a second operating state at a second power level. The second power level is higher than the first power level. The second power level is determined as a function of the deviation.
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公开(公告)号：US20230304663A1
公开(公告)日：2023-09-28
申请号：US18305813
申请日：2023-04-24
申请人： Emerson Electric Co.
发明人： John F. Broker
CPC分类号： F23N5/022 , F24H9/2035 , F23N2229/12 , F24H1/186
摘要： A gas powered water heater includes a storage tank, a main burner, a display, a flame sensor assembly, a wireless communication interface, and a control system. The flame sensor assembly includes a probe to couple an electric current through a flame on the main burner, and a detector that provides signals representative of the electric current provided through the probe. The control system is programmed to determine a length of time taken for a transition between a signal representative of no electric current and a signal representative of a steady state electric current, to select a flame strength level from a plurality of more than three flame strength levels, to display an indication of the selected flame strength level, and to output, using the wireless communication interface, an alert based on the selected flame strength level for display on a remote computing device.
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公开(公告)号：US11761629B2
公开(公告)日：2023-09-19
申请号：US17269653
申请日：2019-08-20
发明人： Ulrich Höflinger , Wilhelm Laux
CPC分类号： F23N5/123 , F23D14/34 , F23N2005/181 , F23N2229/12 , F23N2233/08
摘要： A method for regulating a gas burner, wherein the gas burner has a combustion air supply fan whose rotational speed can be set variably, has the following steps: —operating the fan and detecting a fan rotational speed (nVBL); —changing the fan rotational speed; —measuring an ionization voltage (UION) which correlates with an ionization flow in a flame region of the gas burner; —finding a minimum of a gradient of the measured ionization voltage at the current fan rotational speed; —determining an operating point by measuring the current ionization voltage and storing as an operating point; —while the burner is operating, continuously measuring the current ionization voltage; —determining a deviation between the currently measured ionization voltage and the operating point; —checking whether the deviation (Delta UION) is within a predefined limit (UY) and carrying out a case differentiation: +if the deviation is within the predefined limit (UY), continuing the continuous measurement of the current ionization voltage; +if the deviation is not within the predefined limit (UY), repeating the method from the above change in the fan rotational speed.
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