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    • 6. 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。
    • 9. 发明申请
    • DEVICE FOR CONTROLLING THE SUPPLY OF A COMBUSTIBLE GAS TO A BURNER, PARTICULARLY FOR WATER HEATERS
    • 用于控制可燃气体供应给燃烧器的装置,特别是用于水加热器
    • US20120153200A1
    • 2012-06-21
    • US13325416
    • 2011-12-14
    • Gianpiero TURRINMichele BENVENUTO
    • Gianpiero TURRINMichele BENVENUTO
    • F16K31/02
    • F23K5/002F23D2900/00014F23D2900/00015F23N1/06F23N1/067F23N2035/14F23N2035/18F23N2035/20
    • A device is provided for controlling a gas supply to a burner, having a draft shut-off device and includes a main gas supply pipe with first and second servovalves therein, which include respective valve seats associated with corresponding shut-off members with diaphragm control for opening the seats in opposition to a resilient return member. A pilot pipe branched from the main pipe supplies a pilot burner. A thermoelectric magnetic safety unit is provided on the main pipe, acting to allow gas to flow towards the pilot burner when the unit is activated. The draft shut-off device includes a corresponding shut-off member movable from and towards a position in which an exhaust pipe is shut off, and a diaphragm-controlled pneumatic actuator of the shut-off member, the diaphragm forming a corresponding control chamber of the shut-off member which is in fluid communication with an auxiliary pipe section branched from the main pipe.
    • 提供了一种用于控制燃烧器的气体供应的装置,具有牵引切断装置,并且包括其中具有第一和第二伺服阀的主气体供应管,其包括与相应的切断构件相关联的各个阀座,其具有隔膜控制 打开座位与弹性返回构件相对。 从主管分支的先导管供给引燃燃烧器。 在主管上设置热电磁安全单元,用于当单元启动时使气体流向导向燃烧器。 牵引切断装置包括可从排气管关闭的位置移动的相应的切断构件和关闭构件的隔膜控制的气动致动器,所述隔膜形成相应的控制室 所述关闭构件与从所述主管分支的辅助管段流体连通。