A gas shut-off valve is provided that includes a valve body having a gas inlet, a gas outlet, and a gas passage opening for communicating the gas inlet with the gas outlet. The gas shut-off valve includes an electromagnetic actuator suitable for opening and closing the gas passage opening. The electromagnetic actuator including an electromagnet, a swinging arm with a first end and a second end, and a closure member coupled to the first end. The swinging arm being made of a ferromagnetic material and rotatable at a pivoting area located at the second end between a closed position and an open position. In the closed and open position the pivoting area is supported on the electromagnet. In the open position the pivoting area and an additional segment of the swinging arm are supported on the electromagnet. The closure member being fixed with play to the first end of the swinging arm.

This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one example, a gas valve assembly may include a valve body with one or more valves movable between an opened position and a closed position, one or more valve actuators configured to operate the valves, and one or more pressure sensors to sense a pressure within a fluid path of the valve assembly. A valve controller may receive a measure related to a sensed pressure from the one or more pressure sensor(s). The valve controller may compare the received measure related to the sensed pressure to an overpressure threshold. In the event the measure related to the sensed pressure surpasses the overpressure threshold value, the valve controller may be configured to provide a signal that indicates an overpressure event has occurred.

Gas cooktops disclosed herein may include a proportional solenoid valve controlling gas flow to a gas burner, where the proportional solenoid valve has a continuously variable range of positions. A user interface (UI) element associated with the proportional solenoid valve may be utilized to control a linear voltage regulator having a continuously variable output voltage. The output voltage of the linear voltage regulator is coupled to a solenoid of the proportional solenoid valve, such that the gas flow to the gas burner has a linear relationship with the output voltage of the linear voltage regulator.

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.

The present invention discloses a regulating mechanism regulating the flows from a plurality of gas outlets in a fuel gas valve, comprising an actuator, a push rod, a presser plate assembly, regulating rods and a valve body. Wherein the valve body has a plurality of gas outlets, a regulating rod is provided in each regulating port which exists between the gas inlet and each gas outlet, a resetting device is provided between each regulating rod and the valve body, and the actuator drives the push rod which is around by the regulating ports to move along the axis. The push rod causes the presser plate assembly to move up and down to press or relax the regulating rods and simultaneously change the degree of opening between the head portion of each regulating rod and the corresponding regulating port so that the flow from each gas outlet changes synchronously.

A multi-outlet channel combination gas valve includes a valve body, a solenoid valve and a flow regulating mechanism. The valve body has a multiple of air outlets, at least two outlet channels formed between each air outlet and an air inlet of the valve body, a regulating port disposed in the at least two outlet channels, and the flow regulating mechanism can regulate the gas flow passing through each regulating port of the valve body at the same time, and a solenoid valve with a dual-coil electromagnet structure. When the valve is opened, a relatively larger current is passed, and then a very small current will be provided thereafter to maintain an operation by low power consumption. Therefore, this gas valve can be used without a mains power, and a low-level regulating structure is provided for presetting a low-level flow of each air outlet.

Electromagnetic gas valve with a gas inlet, a gas outlet, and a closure member that is displaceable between an opening position and a closing position. A maximum flow is supplied through the gas outlet with the closure member in the open position and a minimum flow being supplied with the closure member in the closed position. The valve includes a main fluid channel with a closure hole through which the maximum flow is supplied to the gas outlet. The closure member includes a secondary fluid channel calibrated for the minimum flow to pass therethrough, such that the closure member in the closed position covers the closure hole and allows the passage of gas through the secondary fluid channel.

A system for controlling digital gas valves of an appliance utilizing a configurable duty cycle responsive to time, temperature and burner power level variables.

A gas burner assembly for a cooktop appliance includes a normally aspirated primary burner and a concentrically-positioned forced air boost burner. A dual-outlet solenoid valve receives fuel from a fuel source and selectively directs the fuel to a first solenoid outlet in fluid communication with the primary burner and a second solenoid outlet in fluid communication with the boost burner. The solenoid valve is positionable in a first position where the first solenoid outlet is substantially open and the second solenoid outlet is substantially closed and a second position where the first solenoid outlet is partially open and the second solenoid outlet is substantially open.

A gas burner system has a gas burner with a conduit through which an air-gas mixture is conducted; a variable-speed forced-air device that forces air through the conduit; a control valve that controls a supply of gas for mixture with the air to thereby form the air-gas mixture; and an electrode configured to ignite the air-gas mixture so as to produce a flame. The electrode is further configured to measure a flame ionization current associated with the flame. A controller is configured to actively control the variable-speed forced-air device based on the flame ionization current measured by the electrode so as to automatically avoid a flame harmonic mode of the gas burner. Corresponding methods are provided.