A device for controlling a fuel-oxidizer mixture for a premix gas burner, comprises: an intake duct for admitting the mixture into the burner; an injection duct, connected to the intake duct to supply the fuel; a monitoring device for checking the state of combustion in the burner; a gas regulating valve; a fan located in the intake duct; a control unit for controlling the speed of rotation of the fan between a first and a second rotation speed, corresponding to a minimum flow rate of oxidizer (Qmin) and a maximum flow rate of oxidizer (Qmax), respectively; a regulator coupled to the intake duct and having a first aperture, adjustable through a first shutter, and a second aperture, adjustable through a second shutter. The control unit is configured to drive the gas regulating valve in real time.

The invention relates to a device and a method for thermal treatment of a raw material in an oscillating hot gas flow of a pulsation reactor, comprising a burner, which is supplied with a mass flow, via at least one pipeline, for forming at least one flame, which produces the oscillating hot gas flow, wherein the flame is arranged in a combustion chamber, and wherein a reaction chamber follows the combustion chamber downstream of the combustion chamber. In order to be independent of the dimension of the device, it is proposed to provide the mass flow that is supplied to the flame with an externally impressed pulsation. The combustion chamber and/or the reaction chamber can then be varied in geometry to avoid resonances.

Methods and systems for programming and controlling a control system of a gas valve assembly. The methods and systems include programming a control system in an automated manner to establish an air-fuel ratio based at least in part on a burner firing rate. The established air-fuel ratio may be configured to facilitate meeting a combustion constituent set point of combustion constituents in the combustion exhaust. The methods and systems include controlling operation of a combustion appliance based on closed-loop control techniques and utilizing feedback from a sensor measuring combustion constituents in exhaust from a combustion chamber in the combustion appliance. The combustion constituents on which control of the combustion appliance may be determined include oxygen and/or carbon dioxide.

A gas safety valve adapted to a domestic appliance is provided that includes an electromagnet, a phase wire and a ground wire. A support of the electromagnet includes a housing in which resides a phase closure. A segment of the phase wire and a segment of the ground wire are respectively electrically connected with the phase closure and with the support. According to one embodiment the valve includes a connector inserted in the housing of the support. The connector having inserted therein a first end portion of a phase terminal and a first end portion of a ground terminal that are respectively electrically connected with the phase closure and an inner area of the support. Each of the phase terminal and ground terminal including a second end portion that resides exposed to the outside of the valve.

A device for controlling a fuel-oxidizer mixture for a premix gas burner, comprises: an intake duct for admitting the mixture into the burner; an injection duct, connected to the intake duct to supply the fuel; a monitoring device for checking the state of combustion in the burner; a gas regulating valve; a fan located in the intake duct; a control unit for controlling the speed of rotation of the fan between a first and a second rotation speed, corresponding to a minimum flow rate of oxidizer (Qmin) and a maximum flow rate of oxidizer (Qmax), respectively; a regulator coupled to the intake duct and having a first aperture, adjustable through a first shutter, and a second aperture, adjustable through a second shutter. The control unit is configured to drive the gas regulating valve in real time.

A gas safety valve adapted to a domestic appliance is provided that includes an electromagnet, a phase wire and a ground wire. A support of the electromagnet includes a housing in which resides a phase closure. A segment of the phase wire and a segment of the ground wire are respectively electrically connected with the phase closure and with the support. According to one embodiment the valve includes a connector inserted in the housing of the support. The connector having inserted therein a first end portion of a phase terminal and a first end portion of a ground terminal that are respectively electrically connected with the phase closure and an inner area of the support. Each of the phase terminal and ground terminal including a second end portion that resides exposed to the outside of the valve.

Methods and systems for programming and controlling a control system of a gas valve assembly. The methods and systems include programming a control system in an automated manner to establish an air-fuel ratio based at least in part on a burner firing rate. The established air-fuel ratio may be configured to facilitate meeting a combustion constituent set point of combustion constituents in the combustion exhaust. The methods and systems include controlling operation of a combustion appliance based on closed-loop control techniques and utilizing feedback from a sensor measuring combustion constituents in exhaust from a combustion chamber in the combustion appliance. The combustion constituents on which control of the combustion appliance may be determined include oxygen and/or carbon dioxide.