An apparatus, cooking appliance and method functionally verify a gas burner that is controlled by two or more electronically-controlled gas valves coupled in series with one another. Functional verification is performed during ignition and/or shut off of the gas burner at least in part by sequencing the activation and/or deactivation of the gas valves and testing the ignition state of the gas burner while one of the valves is activated and the other is deactivated.

A gas valve for a cooking appliance is provided and includes a valve housing defining a valve chamber therein. A plug is disposed within the valve chamber. A valve stem interacts with the plug such that rotation of the valve stem correspondingly rotates the plug to selectively permit a flow of gas through the gas valve. The valve stem is axially translatable between a locked position wherein rotation thereof is inhibited and an unlocked position wherein rotation thereof is permitted. A first spring exerts a compressive force against the valve stem, toward the plug, to bias the valve stem into the locked position. A second spring exerts a compressive force against the plug in order to seat the plug within the valve chamber regardless whether the valve stem is in the locked or the unlocked position.

Cooktop appliances are provided. A cooktop appliance can include a gas burner; a manifold having a gas input; a primary line extending between the manifold and the gas burner, wherein the primary line operates as a non-modulated minimum gas flow line when the cooktop appliance is in an automatic mode; a secondary line extending between the manifold and the gas burner, wherein a gas flow rate of the secondary line is controllable by a flow control valve; a primary valve in fluid communication with at least the primary line; and a control system including: a sensor configured to detect a temperature corresponding to the gas burner; and a controller regulating: (i) the flow control valve in response to the detected temperature to achieve a desired temperature, and (ii) the primary valve when the flow control valve is closed and the detected temperature exceeds the desired temperature.

Cooktop appliances are provided. A cooktop appliance can include a manifold having a gas input; a first burner in fluid communication with the manifold through a first burner supply line having a first valve; and a second burner in fluid communication with the manifold through a second burner supply line having a second valve, the second burner arranged coaxially with respect to the first burner, wherein the second burner supply line comprises a primary line, a secondary line, and a sum line, the sum line providing a combined flow of gas from the primary line and the secondary line to the second burner, wherein the secondary line of the second burner comprises a third valve.

Cooktop appliances are provided. A cooktop appliance can include a gas burner; a manifold having a gas input; a primary line extending between the manifold and the gas burner, wherein a gas flow rate in the primary line is controllable by a user selectable interface; and a secondary line extending between the manifold and the gas burner, wherein a gas flow rate in the secondary line is controllable by a flow control valve.

Food cooking unit composed of gas burners (1), regulation electrovalves (3) of the supplied gas; an infrared sensor (5) focused towards the cooking zone; a thermocouple (6) in thermal contact with the flames and in connection with a safety electrovalve (4) through a relay (10) and an electronic control device (7) connected to said infrared sensor (5), to said at least one regulating electrovalve (3) and the relay (10) and that stores different regulation programs and that regulates the regulating electrovalve (3) and/or interrupts the thermocouple connection with the safety electrovalve in response to the signals obtained from the infrared sensor (5) and/or the thermocouple (6), and issues warnings in response to signals from the thermocouple (6).

A control unit controls a gas-based cooking appliance having gas burners. The control unit is configured to determine user information regarding a user of the cooking appliance using an electronic user device of the user. Furthermore, the control unit is configured to control the cooking appliance in dependence of the user information.

A furnace including: a blower assembly compartment; a blower assembly located within the blower assembly compartment; a blower motor located within the blower assembly compartment, the blower motor operably connected to a fan of the blower assembly; an induced draft blower; an inducer motor operably connected to the induced draft blower; and a dual motor controller located within the blower assembly compartment, the dual motor controller being configured to independently control at least one of a torque or a speed of the blower motor and the inducer motor.

Gas circuit (1) for a kitchen appliance (2) comprising a gas rail (3) with a gas inlet (4) for connecting said gas rail (3) to a gas source (5) and with at least one gas outlet (6), said gas circuit (1) further comprising a gas tube (7) for providing gas from said gas outlet (6) to a gas hob (8), and said gas circuit (1) further comprising a gas valve assembly (9) connecting said gas tube (7) to said gas outlet (6) of said gas rail (3) in a flow conducting manner, said gas valve assembly (9) comprising a gas valve (10) with a valve body (11) and fixation means (12) fixing said valve body (11) to said gas rail (3) such that said gas valve (10) is supported by said gas rail (3), characterized in that said fixation means (12) comprise a first spring member (13a) looping around said gas rail (3) and/or said valve body (11), thereby resiliently bracing said gas valve (10) and said gas rail (3).

A knob assembly and an appliance having a knob assembly are provided. The knob assembly may include a knob configured to be rotatably installed, a knob ring configured to surround the knob and to be rotated independently from the knob, a spring configured to provide an elastic force so as to return the knob ring toward an initial position when the knob ring is rotated to a position spaced apart from the initial position, and a magnetic force provider configured to provide a magnetic force to return the knob ring to the initial position when the knob ring is at a position adjacent to the initial position.