A flame show is responsive to an audio input signal such as music. A base unit including an analog base unit controller circuit is arranged to receive an audio input signal and generate an analog control signal that is responsive to the audio input signal. The analog control signal is distributed, by wire or wireless, to one or more flame display units such as a tiki torch. Each flame display unit has a fuel source, and a proportional valve for controlling an amount of fuel supplied to a burner. Preferably, the control signal controls a gate terminal of a MOSFET semiconductor device, which in turn is coupled to control current in the proportional valve each each unit. By deploying multiple flame display units, all coupled to the same base unit, all of the flame display units contribute synchronously to the overall flame show.

The invention is directed to a method of operating a gas burner (2, 3) of a gas cooking appliance (1). The gas burner (2, 3) comprises a safety valve (7) for closing and opening gas supply to the gas burner (2, 3) and a step valve (8) for setting a gas flow rate to the gas burner (2, 3). Shut-off of the gas burner (2, 3) comprises closing the safety valve (7) while leaving the step valve (8) open at least for a predetermined period of time from complete closure of the safety valve (7).

Control system for controlling the pilot flame of a combustible gas device, which includes a pilot burner, a main burner, and a valve assembly, which includes a pilot valve that allows/intercepts a flow of gas directed towards the pilot burner, and a main valve that allows/intercepts a gas flow to the main burner, the valve assembly moveable between a closed OFF state, a PILOT state, and an ON state, where gas flows to the main burner. The control system includes a detection device that generates a state signal, and a control unit including a timer, the control unit is operatively connected to the detection device to receive a state signal and to an actuator to close the valve. The control unit starts the timer when the state signal represents the PILOT state, and actuates the actuator for the pilot valve to close it when the timer reaches a preset limit.

A method for controlling a combustion apparatus having a combustion state in which a parameter related to the combustion state reflects a chaotic behavior is provided. The method includes the steps of measuring the parameter and determining a time series of the parameter, shifting the time series by a variable time delay for determining a time-shifted signal, and forming a difference between the time-shifted signal and the time series for determining a time dependent first signal, so that a norm of the difference is lowest. A time dependent second signal is determined, wherein determining the time dependent second signal includes at least one of using a frequency of a desired oscillating combustion state, and shifting the time series by a set time delay. The first signal and the second signal are combined to determine a control signal. The control signal is used to influence the combustion apparatus.

The invention relates to an improved driving device of stove safety protective equipment that is a driving device of driving a knob of a safety protective equipment to rotate and comprising a driving body, a first driving member, a clutch body, a second driving member and a driving tooth disc. When the knob is at an original position that does not ignite, the driving tooth disc integrally combined with the knob pushes the clutch body to allow the second driving member to mesh the driving tooth disc at idle state. The knob is smoothly rotated to implement ignition and regulation motions. At the same time, the driving body can also be rotated to enable the first driving member to move away from the clutch body so that the clutch body exactly and stably comes off the second driving member. The driving body rotates to allow the first driving member moving away from the clutch body, and the clutch body is driven to rotate to engage the second driving member. The second driving member rotates together and drives the driving tooth disc and the knob to restore and rotate so as to turn off stove fire, thereby achieving effect of enhancing stove usage safety.

A system for controlling a boiler in a power plant to ensure combust under optimized conditions is provided. The system for controlling an operation of the boiler may include an optimizer configured to perform a combustion optimization operation for the boiler using a boiler combustion model to calculate an optimum control value for at least one control object of the boiler, and an output controller configured to receive the calculated optimum control value from the optimizer and control the control object according to the optimum control value.

An automatic pilot lighting system for unattended automatic lighting of a standing pilot may include a powered (e.g., battery powered, etc.) circuit. The powered circuit may include an analog timer circuit including a timer switch. A spark ignitor may be coupled with the timer switch. A temperature knob pilot momentary switch may be coupled with the timer switch. An ON/OFF switch may be coupled with the temperature knob pilot momentary switch and the timer switch. The ON/OFF switch may be configured to be operable for selectively disabling and enabling a power source. The analog timer circuit may be configured to be selectively activatable for applying voltage from the power source via the ON/OFF switch for pilot hold voltage and spark ignition for an amount of time sufficient to allow for unattended automatic lighting of the standing pilot and sufficient voltage generation to support standalone operation.

One or more techniques and/or systems are disclosed for controlling and managing one or more flame-producing devices, such as fire features, heating devices and/or cooking devices. Control of respective devices may be provided by a first communication component and a first controller component disposed locally on respective devices, in combination with one or more wireless remote control devices. Respective flame-producing devices may be communicatively coupled with a remote control device, allowing for commands to be sent wirelessly to the flame-producing device, and status information to be sent to the remote control device.

A gas safety system. The gas safety system includes an actuatable electric solenoid valve connected inline with a gas line, and operably connected to a control unit, such as a timer or a smart home system. The timer may be used to set a user-defined length of time for the solenoid valve to be in an open position, thereby allowing gas to flow through the gas line for no longer than the user-defined length of time. The smart home system may be used to remotely control an actuation of the solenoid valve, thereby enabling a user to remotely actuate the solenoid valve between the open position and the closed position. The stove safety system is useful for preventing a fire, an explosion, or another emergency caused by leaving the gas line open during use of a variety of gas appliances, such as gas stoves and the like.

A control device for gas appliances comprises a circuit arrangement that includes: a switching circuit, electrically connected between an electromagnet and a thermoelectric generator of a safety valve of a gas tap; a control circuit (71), designed at least for counting time and configured for controlling the switching circuit; a command circuit, connected in signal communication with the control circuit (71) at least for the purposes of setting the aforesaid time interval. The circuit arrangement comprises a power-supply module (50), for low-voltage d.c. supply, and the switching circuit belongs to a control module (40) which is designed to be operatively associated to a respective gas tap. The control circuit belongs to a second control module (60) that comprises a wireless-communication circuit, in particular a transceiver circuit, electrically connected to the control circuit (71) and configured for exchange of signals in wireless mode with a remote electronic programming device, which can be used at least for manual setting of the aforesaid time interval.