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公开(公告)号：EP0498619A2
公开(公告)日：1992-08-12
申请号：EP92300935.1
申请日：1992-02-04
CPC分类号： F23N5/123 , F23N2029/00
摘要： A flame detection circuit and method using a flame probe (1,3), across which an alternating voltage is applied, is described. The means for applying an alternating voltage comprises a pair of terminals (5,17) for connection across the two rails of an A.C. supply. A pair of resistors (19,21) are connected across the terminals, with an A.C. current path being provided between the node between the resistors (19,21) and the flame probe (1,3), the resistance of each of the resistors (19,21) being equal.
摘要翻译： 描述了使用施加有交流电压的火焰探测器（1,3）的火焰检测电路和方法。 用于施加交流电压的装置包括用于连接交流电源的两个轨道的一对端子（5,17）。 一对电阻器（19,21）跨过端子连接，AC电流路径设置在电阻器（19,21）和火焰探测器（1,3）之间的节点之间，每个电阻器的电阻 （19,21）相等。
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公开(公告)号：EP0478359A3
公开(公告)日：1992-08-05
申请号：EP91308843.1
申请日：1991-09-27
发明人： DeFries, John W.
IPC分类号： F23N5/20
CPC分类号： F23N5/203 , F23N5/242 , F23N2023/22 , F23N2023/26
摘要： A control device includes a fail-safe control circuit for controlling the length of time that a gas valve is open during the ignition cycle of a gas appliance. The control circuit includes a capacitor (11) arranged to charge to a predetermined voltage. During the timing cycle the capacitor is arranged to discharge through the coil (5) of a solenoid shut-off valve.
摘要翻译： 控制装置包括故障安全控制电路，用于控制在燃气器具的点火循环期间燃气阀打开的时间长度。 控制电路包括被布置为充电到预定电压的电容器（11）。 在定时循环期间，电容器布置成通过电磁切断阀的线圈（5）放电。
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公开(公告)号：EP0478359A2
公开(公告)日：1992-04-01
申请号：EP91308843.1
申请日：1991-09-27
发明人： DeFries, John W.
IPC分类号： F23N5/20
CPC分类号： F23N5/203 , F23N5/242 , F23N2023/22 , F23N2023/26
摘要： A control device includes a fail-safe control circuit for controlling the length of time that a gas valve is open during the ignition cycle of a gas appliance. The control circuit includes a capacitor (11) arranged to charge to a predetermined voltage. During the timing cycle the capacitor is arranged to discharge through the coil (5) of a solenoid shut-off valve.
摘要翻译： 控制装置包括故障安全控制电路，用于在燃气器具的点火循环期间控制燃气阀打开的时间长度。 控制电路包括电容器（11），其被布置成对预定电压充电。 在定时周期期间，电容器布置成通过螺线管截止阀的线圈（5）放电。
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公开(公告)号：EP0388065A3
公开(公告)日：1991-04-24
申请号：EP90302390.1
申请日：1990-03-06
发明人： Steer, Clive R. , DeFries, John W.
IPC分类号： F23N5/12
CPC分类号： F23N5/123 , F23N2023/20 , F23N2029/00 , F23N2029/12
摘要： Apparatus and methods are described for the detection of the presence of a flame (10), the apparatus including circuit means for applying an alternating voltage to a flame probe (2) such that the alternating voltage is partially rectified in the presence of a flame (10) at the probe (2) resulting in the development of a DC voltage component. The DC voltage component causes the accumulation of a corresponding electrical charge in a storage element (18), the apparatus includes means (120,36) for periodically releasing the charge. An optical coupling means (40) is responsive to the released charge to initiate a control signal in a control signal generator (130), the control signal indicating detection of the flame (10).
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公开(公告)号：EP0388065A2
公开(公告)日：1990-09-19
申请号：EP90302390.1
申请日：1990-03-06
发明人： Steer, Clive R. , DeFries, John W.
IPC分类号： F23N5/12
CPC分类号： F23N5/123 , F23N2023/20 , F23N2029/00 , F23N2029/12
摘要： Apparatus and methods are described for the detection of the presence of a flame (10), the apparatus including circuit means for applying an alternating voltage to a flame probe (2) such that the alternating voltage is partially rectified in the presence of a flame (10) at the probe (2) resulting in the development of a DC voltage component. The DC voltage component causes the accumulation of a corresponding electrical charge in a storage element (18), the apparatus includes means (120,36) for periodically releasing the charge. An optical coupling means (40) is responsive to the released charge to initiate a control signal in a control signal generator (130), the control signal indicating detection of the flame (10).
摘要翻译： 描述了用于检测火焰（10）的存在的装置和方法，该装置包括用于向火焰探针（2）施加交流电压的电路装置，使得交流电压在火焰存在下部分整流（ 10）在探针（2）处产生直流电压分量的发展。 DC电压分量导致在存储元件（18）中积累相应的电荷，该装置包括用于周期性释放电荷的装置（120,36）。 光耦合装置（40）响应于释放的电荷来启动控制信号发生器（130）中的控制信号，该控制信号指示火焰（10）的检测。
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公开(公告)号：EP0498619A3
公开(公告)日：1993-05-19
申请号：EP92300935.1
申请日：1992-02-04
CPC分类号： F23N5/123 , F23N2029/00
摘要： A flame detection circuit and method using a flame probe (1,3), across which an alternating voltage is applied, is described. The means for applying an alternating voltage comprises a pair of terminals (5,17) for connection across the two rails of an A.C. supply. A pair of resistors (19,21) are connected across the terminals, with an A.C. current path being provided between the node between the resistors (19,21) and the flame probe (1,3), the resistance of each of the resistors (19,21) being equal.
摘要翻译： 描述了使用施加有交流电压的火焰探测器（1,3）的火焰检测电路和方法。 用于施加交流电压的装置包括用于连接交流电源的两个轨道的一对端子（5,17）。 一对电阻器（19,21）跨过端子连接，AC电流路径设置在电阻器（19,21）和火焰探测器（1,3）之间的节点之间，每个电阻器的电阻 （19,21）相等。
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