Systems and methods are disclosed that include providing a cooking system that comprises a burner assembly and a heat exchanger, the burner assembly having a high velocity burner configured to provide the necessary high velocity, volumetric flowrate through the heat exchanger, and the burner assembly also having a low velocity burner configured to significantly reduce and/or substantially eliminate “lift off” that could result from operation of only the high velocity burner.

Systems and methods are disclosed that include providing a cooking system that comprises a burner assembly and a heat exchanger, the burner assembly having a high velocity burner configured to provide the necessary high velocity, volumetric flowrate through the heat exchanger, and the burner assembly also having a low velocity burner configured to significantly reduce and/or substantially eliminate “lift off” that could result from operation of only the high velocity burner.

A burner assembly includes a spreader, a burner base, and at least one annular burner cap. The spreader has a bottom and a combustion chamber that is defined by a crenellated wall wherein a plurality of fuel exit portions defines the crenellated wall. The burner base includes a peripheral wall. The at least one annular burner cap is coupled to the peripheral wall of the burner base and is positioned on the crenellated wall.

A process of partial oxidation is performed in a reactor which includes a reaction chamber and a burner assembly, wherein: the burner assembly has a single oxidant nozzle located within an fuel channel, said oxidant nozzle comprises a nozzle pipe and a nozzle outlet, the nozzle pipe and the fuel channel are arranged to produce a diffusion flame, the nozzle outlet has a shape with two or more elongate lobes projecting from a center of the nozzle pipe.

Fuel injection assemblies and combustors are provided. A fuel injection assembly includes a fuel injector having a first annular wall that about an axial centerline and extends from a primary inlet disposed at a first end to a primary outlet disposed at a second end. A second annular wall surrounds the first annular wall. A fuel plenum is defined between the first annular wall and the second annular wall. A fuel duct extends from a fuel outlet defined in the second annular wall to a fuel inlet. wherein the fuel duct is in fluid communication with the fuel plenum. The fuel duct includes a polygonal segment and a cylindrical inlet segment. The polygonal segment extends from the fuel outlet to the cylindrical inlet segment.

An outdoor decorative burner having a direct gas feed and a linear burner having a plurality of longitudinally-oriented slit-like flame orifices. The linear burner is securely attached to a plate by at least two wrap brackets. A direct spark igniter and a flame sensor are included and surrounded by protective cages.

A burner for a gas stove includes an outer shell having a first longitudinal end and a second longitudinal end and an inlet conduit arranged inside the outer shell and defining an inlet port at the first longitudinal end to facilitate an entry of an air and a gas inside the inlet conduit. An inner shell is arranged between the inlet conduit and the outer shell and defines a first outlet channel between the inlet conduit and inner shell and a second outlet channel between the inner shell and the outer shell. A flow plate is coupled to the inlet conduit and includes a plurality of guide blades defining a plurality of passages therebetween. Each blade includes a flat portion and a guide portion extending obliquely and downwardly from the flat portion to facilitate a swirling of an air gas mixture exiting the passages.

An outdoor decorative burner having a direct gas feed and a linear burner having a plurality of longitudinally-oriented slit-like flame orifices. The linear burner is securely attached to a plate by at least two wrap brackets. A direct spark igniter and a flame sensor are included and surrounded by protective cages.

An inward-firing combustion burner, includes a burner casing configured to receive a fuel-air mixture at a burner inlet and to provide hot combustion gas at a burner output, a combustion substrate disposed within the burner casing, the substrate having a shape comprising at least a semi-cone or a flat surface, having a substrate porosity defined by a plurality of pores, and having a substrate inner surface and a substrate outer surface, the substrate configured to receive the fuel-air mixture at the outer surface of the substrate, the fuel-air mixture passing through the pores at a mixture flow rate from the substrate outer surface toward the substrate inner surface, and the burner configured such that, in operation, the fuel-air mixture ignites near the plurality of pores to form a respective plurality of flamelets, each flamelet corresponding to one of the pores.

A poolside burner having a central gas feed and a burner ring having longitudinally-oriented slit-like flame orifices. The burner ring is securely attached to a burner plate having a centralized hole through which a feeder extends and mates with a central distribution tube connected to the burner ring.