Abstract: A gas burner assembly and a method of operating the same are provided. The gas burner assembly includes fuel regulating device for providing a flow of fuel and an air pump for providing a flow of air to a boost burner for combustion. The method includes stopping the flow of fuel using the fuel regulating device and ramping down the operation of the air pump to slowly stop the flow of air. For example, the flow rate of the flow of air may decrease linearly over a predetermined time period to ensure a lean fuel/air mixture is not provided to the boost burner which may result in undesirable flame characteristics.

Abstract: A gas burner assembly and a method of operating the same are provided. The gas burner assembly includes fuel valve for providing a flow of fuel and an air pump for providing a flow of air into a boost fuel chamber prior to combustion. The method includes obtaining a predetermined cold start airflow schedule and modifying the cold start airflow schedule if the operating history of the gas burner assembly indicates that the temperature of the gas burner assembly is elevated, e.g., not cold. Specifically, the warmer the gas burner assembly, the more the airflow is increased relative to the cold start airflow schedule.

Abstract: An injet for a gas burner includes a first gas orifice and a second gas orifice. An injet body defines an air passage and a gas passage. The first and second gas orifices are mounted to the injet body. A pneumatically actuated gas valve blocks a flow of gaseous fuel through the gas passage to the second gas orifice in a closed configuration. The pneumatically actuated gas valve is configured to adjust from the closed configuration to an open configuration in response to a flow of air through the air passage. A flow restriction body is disposed upstream of the pneumatically actuated gas valve. The flow restriction body defines a through hole via which air is flowable to pneumatically actuated gas valve.

Abstract: A cooktop appliance includes a top panel that defines a hole. A gas burner includes a burner body that defines a plurality of flame ports. A receptacle is mounted to the top panel at the hole of the top panel. The burner body is positioned on the receptacle. An injet is mounted to the top panel such that the injet is positioned opposite the burner body about the top panel. A fuel orifice is positioned on the injet. The fuel orifice is oriented for directing a flow of fuel to the burner body. The burner body is positioned such that the burner body does not contact the injet.

Abstract: A gas cooktop includes one or more gas burners on a top panel. A high output gas burner is also positioned on the top panel. The high output gas burner is separate from each of the one or more gas burners. The high output gas burner has a maximum heat output greater than each of the one or more gas burners. An electronic control valve is coupled to a supply line of the high output gas burner. The electronic control valve is operable to adjust a flow rate of fuel through the supply line of the high output gas burner. A controller is in communication with the electronic control valve and the one or more control valves. The controller is configured for throttling the maximum heat output of the high output gas burner with the electronic control valve.

Abstract: A gas burner includes a burner body that defines a fuel chamber and a plurality of flame ports. The plurality of flame ports are configured for directing a flow of fuel and air out of the fuel chamber. The plurality of flame ports are distributed along a circumferential direction on the burner body such that the plurality of flame ports are uniformly spaced from a center of the fuel chamber along a radial direction. The plurality of flame ports may be oriented to direct flames away from a void within the plurality of flame ports.

Abstract: A gas burner assembly for a cooktop appliance is provided including a lower body and an upper body positioned over the lower body to define a boost burner chamber. A first plurality of projections extends upward from the lower body and a second plurality of projections extends downward from the upper body. The second plurality of projections are interposed between the first plurality of projections to define a plurality of burner ports in fluid communication with the boost burner chamber. In this manner, burner ports are easily manufactured and define a larger height-to-width aspect ratio for improved burner performance.

Abstract: A cooktop appliance includes a top panel and a gas burner assembly with a support member formed integrally with a cap at a first end portion of the support member. The support member defines a fuel supply passage that extends between first and second end portions of the support member. A burner body is mounted to the cap such that the burner body is positioned above and spaced from the top panel.

Abstract: A cooktop appliance includes a gas burner assembly with one or more burner bodies that define a first plurality of flame ports, a first fuel chamber, a second plurality of flame ports and a second fuel chamber. A fan is coupled to the gas burner assembly such that the fan is operable to urge a flow of air into only the second fuel chamber. An operating speed of the fan is fixed such that a firing rate of the second plurality of flame ports is fixed.

Abstract: A gas burner assembly is provided which includes an air pump that supplies a flow of air into a boost fuel chamber for mixing with a flow of boost fuel before being combusted and directed through a plurality of boost flame ports. An accumulator is positioned between the air pump and the boost burner such that the flow of air passes though the accumulator, thereby dampening pulsations or surges from the air pump before entering the boost fuel chamber.

Abstract: A gas burner assembly and a method of operating the same are provided. The gas burner assembly includes an air pump that supplies a flow of air into a boost fuel chamber for mixing with a flow of boost fuel before being combusted and directed through a plurality of boost flame ports. A temperature sensor is positioned proximate the air pump and a controller regulates the power supplied to the air pump to compensate for air pump operating characteristics based on the measured temperature. A pressure sensor may also detect a low pressure condition downstream of the air pump and shut down the fuel and air supply system accordingly.

Abstract: A cooktop appliance includes a top panel. A gas burner assembly includes an annular burner body positioned on the top panel at a top surface of the top panel. The annular burner body defines a central combustion zone. The annular burner body also defines a plurality of flame ports at the central combustion zone. Gaseous fuel is flowable from a fuel chamber within the annular burner body into the central combustion zone through the plurality of flame ports. The gas burner assembly further includes features for direction the gaseous fuel into the fuel chamber of the annular burner body. The annular burner body is open at the central combustion zone such that the top panel is exposed through the annular burner body at the central combustion zone.

Abstract: A gas burner includes a burner body that defines a plurality of forced induction flame ports. An air outlet orifice is mounted to an injet body at an outlet of an air passage such that the air outlet orifice is oriented for directing a flow of air towards the plurality of forced induction flame ports. A gas outlet orifice is mounted to the injet body at an outlet of a gas passage such that the gas outlet orifice is oriented for directing a flow of gaseous fuel towards the plurality of forced induction flame ports. A pneumatically actuated gas valve is positioned within the injet body. The pneumatically actuated gas valve is configured to adjust from a closed configuration to an open configuration in response to the flow of air through the air passage.

Abstract: A gas burner includes a burner body that defines a plurality of naturally aspirated flame ports and a plurality of forced induction flame ports. A first gas orifice is mounted to an injet body such that the first gas orifice is oriented for directing a flow of gaseous fuel towards the plurality of naturally aspirated flame ports. A second gas orifice and the injet body form an eductor mixer within a mixing chamber of the injet body. A mixed outlet nozzle is mounted to the injet body at the mixing chamber such that the mixed outlet nozzle is oriented for directing a mixed flow of air and gaseous fuel from the mixing chamber towards the plurality of forced induction flame ports.

Abstract: An eductor for a gas burner includes a mixing body that defines a mixing chamber. The mixing body also has a fuel line coupling. The mixing chamber is configured for receiving a flow of forced air and a flow of fuel. The fuel line coupling is configured for supporting a fuel line through which the flow of fuel enters the mixing body. A fuel metering orifice is mounted to the mixing body. The fuel metering orifice is spaced from the fuel line coupling on the mixing body. The fuel metering orifice is configured for directing the flow of fuel into the mixing chamber of the mixing body. The fuel metering orifice is separable from the mixing body when the fuel line is coupled to the mixing body at the fuel line coupling.

Abstract: 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 control valve provides a flow of primary fuel to the primary burner through a first outlet and a flow of boost fuel to the boost burner through a second outlet. The boost burner operates by receiving the flow of boost fuel and a flow of combustion air from a forced air supply source only when the primary burner is operating in a low condition.

Abstract: A gas burner assembly for a cooktop appliance is provided. The gas burner has a gas stability chamber for providing a re-ignition source to primary burner ports positioned around the burner without the noises associated with spark controlled cycled burners. The stability chamber may entrain air from above the cooktop appliance for increased stability.

Abstract: A gas burner assembly for a cooktop appliance and a method for operating the same are provided. The gas burner assembly includes a normally aspirated primary burner, a concentrically-positioned forced air boost burner, a boost valve for regulating a flow of boost fuel to the boost burner, and a forced air supply source for providing a flow of air to the boost burner. The method includes activating the boost burner upon receiving a command and starting a timer. After a predetermined amount of time has passed, e.g., such as ten minutes, the boost burner is extinguished by closing the boost valve to prevent unsafe operating conditions.

Abstract: A cooktop appliance and methods of operation are provided herein. The cooktop appliance may include a panel comprising a top surface and a bottom surface, a first burner assembly, a second burner assembly, a first control valve, a second control valve, and a controller. The first burner assembly may include a first burner extending at least partially above the top surface of the panel. The second burner assembly may be spaced apart from the first burner assembly on the panel. The second burner assembly may include a second burner extending at least partially above the top surface of the panel. The first control valve may be in fluid communication with the first burner assembly to selectively direct a flow of gas thereto. The second control valve may be in fluid communication with the second burner assembly to selectively direct a flow of gas thereto.

Abstract: A gas burner assembly for a cooktop of an appliance includes a burner base defining a circumferential direction, an axial direction, and a radial direction. The burner base includes an inner sidewall and an outer sidewall. The inner sidewall defines a simmer flame port and a plurality of primary flame ports. The primary flame ports of the plurality of primary flame ports are spaced apart from one another along the circumferential direction on the inner sidewall. The outer wall is spaced apart from the inner sidewall along the radial direction such that a fuel chamber is positioned therebetween. In addition, the burner base defines a stability chamber extending from the simmer flame port of the inner sidewall outwardly along the radial direction. The burner base defines, at least in part, a stability chamber extending from the simmer flame port of the inner sidewall outwardly along the radial direction.