Abstract: The present disclosure is related to a dual ring gas burner wherein the outer ring includes multipoint injection with bottom breathing and the inner ring works with top breathing. Two flame rings are included along with burner ports on the caps. As a result, better heating distribution is achieved along with greater ease in cleaning and combined simmer functions with high ratings by having the outer ring gas flow not interfering with the inner ring.

Abstract: A burner has a body suitable for containing at least one injector, a crown disposed on the body, and a cap disposed on the crown. The geometrical structure of the crown and of the cap is such to stabilize the flames with a minimum contact between the flames and the cap, in such a way to minimize the temperature of the cap when the burner is used.

Abstract: A cooking appliance includes a self-closing user control for a cooking element that is capable of automatically returning to an off position whenever it is released by a user in a portion of the movable range of positions for the self-closing user control, yet also is capable of maintaining its position in another portion of the movable range of positions for the self-closing user control.

Abstract: An air handling unit (AHU) for a heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a housing and a combustion heater disposed within the housing. The housing includes a combustion section with a first channel and a second channel. The combustion heater includes heat exchanger tubes and a tube support that supports heat exchanger tubes within the combustion section. The tube support slidably disposed in the first channel and the second channel. The combustion heater configured to be slidably removable from the AHU. An AHU for an HVACR system includes a housing with a fan section and a fan assembly disposed within the housing. The fan assembly including a pair of grooves slidably disposed on a pair of rails of the housing. The fan assembly configured to be both slidably removable from the AHU and liftably removable from the AHU.

Abstract: A regenerative burner including: a combustion chamber; a heat exchange chamber; and a communication passage therebetween, the combustion chamber includes a tip of a fuel nozzle and a flame ejection port, and is configured such that fuel introduced from the fuel nozzle into the combustion chamber can be burned in the combustion chamber using combustion air introduced into the combustion chamber through the communication passage to eject flame from the flame ejection port; the fuel nozzle is configured such that fuel burned in the regenerative burner is introduced into the combustion chamber; and the heat exchange chamber comprises a heat accumulator interposed between the communication passage and an air port, and is configured such that combustion air can pass through the heat accumulator and then be introduced into the combustion chamber such that an exhaust gas passes through the heat accumulator and is discharged from the air port.

Abstract: A portable flamethrower is provided. It includes a fuel supply, including an externally powered fuel pump in flow communication with a nozzle and a fuel tank. An ignition system is provided to effect igniting of a stream of liquid fuel. An electronic control system is provided to effect selective operation of the ignition system and the fuel system, and preclude their operation if operation criteria are not met.

Abstract: The present invention relates to a device and a method for chemical looping combustion, for which the end of the intake duct (4) opening out within the chamber of the separator (1) is inclined with respect to a horizontal plane (H).

Abstract: 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.

Abstract: A combustion system includes a fuel distributor configured to output a fuel, an oxidant source configured to output an oxidant, and a mixing tube defining a mixing volume aligned to receive the fuel and oxidant. The mixing tube is shaped to convey the fuel and the oxidant through the mixing volume at a bulk velocity higher than a flame propagation speed. The combustion system includes a flame holder aligned to receive the mixed fuel and oxidant and to support a combustion reaction of the fuel and the oxidant.

Abstract: A robotic coupling joint system and method are discussed herein, which may be utilized with a daylighting system or photovoltaic system to track sunlight. The system may provide a spherical joint allowing axial motion about two or more axes of the spherical joint. The joint comprises a first plate with four or more sockets, a second plate, a connector, and one or more spheres positioned between the first and second plates. The connector secures the sphere between the first and second plates. The system may also include a stand, an end effector coupled to the stand by the spherical joint, and a mobility system that is capable of actuating the end effector. The mobility system includes two or more linking elements coupled to the end effector, and a motor coupled to the linking elements to actuate the end effector to track sunlight.

Abstract: A thermoelectric assembly for powering one or more electromagnetic valves of a cooking appliance. According to one embodiment the assembly includes a main current circuit that includes a thermocouple, a cable configured for electrically connecting the thermocouple with an electromagnetic valve, and a transistor connected to the cable and configured for de-energizing the electromagnetic valve. The main current circuit also includes a connection module that includes a power supply connected to the transistor, the power supply having input terminals configured for being connected to an external energy source, a rectifier, and a resistive block connected between one of the input terminals and the rectifier, the resistive block being configured for minimizing the current circulating through the power supply to a value equivalent to the galvanic isolation.

Abstract: A method of operating a cooktop appliance in a precision mode includes monitoring a temperature with a temperature sensor and starting a vaporization timer when the monitored temperature enters a vaporization band. The method also includes freezing the precision mode when the vaporization timer expires and the monitored temperature is within the vaporization band.

Abstract: A remote sensing system which may be assembled with an Infrared (IR) sensor, or a plurality of IR sensors, disposed to sense IR radiance emitted as combustion products from a flare stack in two distinctive spectral bands, each band having a narrow spectral bandpass, the sensor being radiometrically calibrated to sense transmission characteristics of the two distinctive bands of the radiance from flare combustion gases; and an analyzer driven by a microcontroller, coupled to the IR sensor, to operationally respond in real time by generating an indication of flare stack's performance through a parameter derived from a ratio of the transmission characteristics of the two radiance outputs sensed by the IR sensor. The IR sensor of this flare monitoring-apparatus must be positioned in such a way that the anticipated entire flame will be captured within the Field of View (FoV) of the IR sensor, or sensors.

Abstract: A balanced pollutant cleaning system is provided. The balanced pollutant cleaning system includes a fan, an air jet device, an air suction device and a control device. The air jet device is disposed around a shielded object and the air jet device is provided with a plurality of air jet ports, and an air inlet of the air jet device is connected with an air outlet of the fan through a pipeline. The air suction device is configured to suction away pollutants and heat generated by the shielded object and the air ejected from the air jet ports. The control device is configured to control a magnitude of an airflow output from the fan, and the control device is configured to adjust an air suction amount of the air suction device according to the magnitude of the airflow output from the fan.

Abstract: This disclosure provides a folding stove, including a base and a plurality of baking pan supporting feet. The baking pan supporting foot includes a supporting part and an installation part. The installation part is detachably connected with the base. The supporting part is rotatably connected with the installation part, and it is used for supporting the baking pan. Through the above structure, the user can rotate the baking pan supporting foot to the folding or unfolding position, so as to adjust the baking pan to a suitable height. The baking pan supporting foot can also be turned to the folding position so that the user can fold and carry it. Further, the baking pan supporting feet can be detached from the base, and the baking pan can be directly placed on the base, which brings convenience for storage and carrying.

Abstract: A burner module according to the invention comprises at least three or four or five or six or seven or eight functional walls which delimit at least one first functional space and form a module body, wherein the module body has at least three or four or five or six or six or seven gas passage openings and at least two of these gas passage openings are connected to one another communicatively via the first functional space, and wherein at least one nozzle device having a fuel gas opening is formed in an upper wall of the burner module, which fuel gas opening is connected communicatively to the first functional space via a gas channel. The burner module is produced in an additive manner.

Abstract: A premixed combustion burner includes: a mixing part including a first peripheral wall having a center burner axis, a mixing region for mixing fuel and air in the first peripheral wall, and air supply ports arranged circumferentially and open in the first peripheral wall; a nozzle on the mixing part side, a second peripheral wall having a center burner axis, a premixed gas passage continuous to the second peripheral wall mixing region, and a cooling passage in the second peripheral wall; and a header part proximal to the mixing part, and a first header chamber with a fuel supply port, second header chamber, and fuel ejection port for communication between the second header chamber and mixing region. The first peripheral wall has an outward path connecting the first header chamber and a cooling passage inlet, and a return path connecting cooling passage outlet and the second header chamber.

Abstract: An intelligent cooktop has at least a first, if not multiple burners in proximity to at least a first sensor, respectively, wherein the first sensor provides an input to a processor which evaluates a burner performance characteristic selected from the group of least one of flame level, temperature rise, time lag, and temperature level using the first sensor compared to an anticipated performance characteristic of the first burner based on the valve position; and then provides a burner performance output to a user identifying a condition of the first burner.

Abstract: A flue damper may include a vent pipe with a first side leading to an outlet of the flue damper and a second side leading to an inlet of the flue damper. A damper gate of the flue damper may be movable between an open state and a closed state, where in the open state, the first side of the vent pipe is in fluid communication with the second side, and where in the closed state, the damper gate interrupts fluid communication between the first side and the second side. A drainage port may also be included, and a plug may be movable relative to the drainage port to selectively seal the drainage port when the damper gate remains in the closed state.

Abstract: A filter device for a fume extraction device includes at least two filter elements arranged at an angle relative to one another, and a holding frame for holding the at least two filter elements. An edge of one of the at least two filter elements lies adjacent to an edge of the other one of the at least two filter element. Each of the at least two filter elements has a surface with a variable distance between opposite outer faces of the filter element.