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    • 2. 发明授权
    • Method for controlling an induced draft fan for use with gas furnaces
    • 用于控制用于燃气炉的引风机的方法
    • US5806440A
    • 1998-09-15
    • US651009
    • 1996-05-20
    • Mitchell R. RowletteYoun H. TingWalter H. BaileyRonald E. Garnett
    • Mitchell R. RowletteYoun H. TingWalter H. BaileyRonald E. Garnett
    • F23N1/06F23N3/08F23N5/18G05D7/06
    • F23N3/082F23N1/06F23N1/062F23N2023/08F23N2025/04F23N2033/04F23N2033/10F23N5/18
    • A gas fired furnace system (10) has a controller (14) controlling the supply of gas through a gas valve (12) and air for combustion by means of an induced air draft fan (28), ignition of the gas by means of ignitor (22), the delivery of heated air from a heat exchanger (20) by means of an air blower (34) in response to signals from a thermostat (42). A selected constant flow of air for combustion is provided by controlling the speed of the motor driving the induced motor fan (28) despite changes which may occur in back pressure. Induced draft fan motor parameters proportional to motor torque and motor speed are read on an ongoing basis and inputted to controller (14) which computes a desired voltage and compares that with referenced data stored in the controller memory and makes corrections to the speed of the induced draft fan motor to maintain the constant air flow. The motor speed and motor torque are also monitored to ensure that they are within selected limits indicative of safe operation and responsive to this input energization of a relay (KM1) is controlled to deenergize the gas valve and ignition.
    • 一种燃气炉系统(10)具有控制器(14),其通过气阀(12)和通过引风通风扇(28)进行燃烧的空气的控制,通过点火器点燃气体 (22),响应于来自恒温器(42)的信号,借助于鼓风机(34)从热交换器(20)输送加热的空气。 通过控制驱动感应的电动机风扇(28)的电动机的速度来提供选择的用于燃烧的恒定气流,尽管在背压中可能发生变化。 与电动机转矩和电动机速度成比例的感应通风风扇电动机参数被持续读取并输入到计算期望电压的控制器(14),并将其与存储在控制器存储器中的参考数据进行比较,并对诱导的速度进行校正 风机电机保持恒定的气流。 还监控电机转速和电机转矩,以确保它们位于指定安全运行的选定范围内,并响应于继电器(KM1)的输入通电被控制以对燃气阀和点火进行灭弧。
    • 3. 发明授权
    • Induced draft fan control for use with gas furnaces
    • 引风机控制用于燃气炉
    • US5524556A
    • 1996-06-11
    • US489274
    • 1995-06-09
    • Mitchell R. RowletteYoun H. TingWalter H. BaileyRonald E. Garnett
    • Mitchell R. RowletteYoun H. TingWalter H. BaileyRonald E. Garnett
    • F23N1/06F23N3/08F23N5/18G05D7/06
    • F23N3/082F23N1/06F23N1/062F23N2023/08F23N2025/04F23N2033/04F23N2033/10F23N5/18
    • A gas fired furnace system (10) has a controller (14) controlling the supply of gas through a gas valve (12) and air for combustion by means of an induced air draft fan (28), ignition of the gas by means of ignitor (22), the delivery of heated air from a heat exchanger (20) by means of an air blower (34) in response to signals from a thermostat (42). A selected constant flow of air for combustion is provided by controlling the speed of the motor driving the induced motor fan (28) despite changes which may occur in back pressure. Induced draft fan motor parameters proportional to motor torque and motor speed are read on an ongoing basis and inputted to controller (14) which computes a desired voltage and compares that with referenced data stored in the controller memory and makes corrections to the speed of the induced draft fan motor to maintain the constant air flow. The motor speed and motor torque are also monitored to ensure that they are within selected limits indicative of safe operation and responsive to this input energization of a relay (KM1) is controlled to deenergize the gas valve and ignition.
    • 一种燃气炉系统(10)具有控制器(14),其通过气阀(12)和通过引风通风扇(28)进行燃烧的空气的控制,通过点火器点燃气体 (22),响应于来自恒温器(42)的信号,借助于鼓风机(34)从热交换器(20)输送加热的空气。 通过控制驱动感应的电动机风扇(28)的电动机的速度来提供选择的用于燃烧的恒定气流,尽管在背压中可能发生变化。 与电动机转矩和电动机速度成比例的感应通风风扇电动机参数被持续读取并输入到计算期望电压的控制器(14),并将其与存储在控制器存储器中的参考数据进行比较,并对诱导的速度进行校正 风机电机保持恒定的气流。 还监控电机转速和电机转矩,以确保它们位于指定安全运行的选定范围内,并响应于继电器(KM1)的输入通电被控制以对燃气阀和点火进行灭弧。
    • 5. 发明授权
    • Electrical control system for relay operation responsive to thermostat
input having improved efficiency
    • 用于继电器操作的电气控制系统,其响应于具有提高的效率的恒温器输入
    • US5655709A
    • 1997-08-12
    • US654803
    • 1996-05-29
    • Ronald E. GarnettWalter H. Bailey
    • Ronald E. GarnettWalter H. Bailey
    • G05D23/30G05D15/00
    • G05D23/30
    • A temperature control system is shown in which a thermostat circuit is combined with a power supply to produce a higher anticipator current for a W1 signal while reducing power consumption and heat generation of the circuit. A first relay power signal is provided by an unbalanced bridge rectifier (D1, D2, D3, D4, D7, D8) while current drawn through the anticipator resistor (AR1) by means of an additional bridge rectifier circuit (D7, D8, D9, D10) is merged with the first relay power signal. In a second embodiment, an unbalanced bridge rectifier (D1, D4, D7, D2, D3, D8) has an output connected to a first stage relay power signal line as well as to second and third relay power signal lines. A second stage of the power supply includes a first additional bridge rectifier (D5, D6, D7, D8) connected to the second relay power signal line that drives current through the W1 anticipator while in a third stage of the power supply a second additional rectifier (D20, D21, D7, D8) is connected to the third relay power signal line and draws current through the W2 anticipator. Each stage of power adds more capacitance (C12, C11, C10) as the power requirements increase.
    • 示出了一种温度控制系统,其中恒温器电路与电源组合以在W1信号中产生较高的预期电流,同时降低电路的功耗和发热。 第一继电器功率信号由不平衡桥式整流器(D1,D2,D3,D4,D7,D8)提供,而通过额外的桥式整流电路(D7,D8,D9, D10)与第一个继电器功率信号合并。 在第二实施例中,不平衡桥式整流器(D1,D4,D7,D2,D3,D8)具有连接到第一级继电器功率信号线以及第二和第三继电器功率信号线的输出。 电源的第二级包括连接到第二继电器功率信号线的第一附加桥式整流器(D5,D6,D7,D8),其在电源的第三级中驱动通过W1预期器的电流,第二附加整流器 (D20,D21,D7,D8)连接到第三中继电源信号线,并通过W2预测器吸取电流。 随着功率需求的增加,每级功率增加了更多的电容(C12,C11,C10)。