Disclosed are a fuel nozzle assembly, and a fuel nozzle module and gas turbine having the same. The fuel nozzle assembly includes a fuel nozzle, a shroud spaced apart from the fuel nozzle and defining a flow path between an inner wall and the fuel nozzle, a rim formed around the shroud to guide air, and a turning guide spaced apart from the rim to distribute the air. The turning guide includes a turning separator spaced apart from the rim to extend in a circumferential direction of the rim, and inner separators extending in a radial direction of the rim to interconnect opposite circumferential ends of the turning separator and an outer surface of the fuel nozzle. The fuel nozzle assembly prevents air pockets, and ensures uniform supply of air, thereby preventing a local increase in combustion temperature inside the fuel nozzle and reducing generation of NOx.

A combustor or augmentor of a gas turbine engine is provided. The combustor or augmentor includes a wall defining apertures and an interior having an inlet, an outlet and a mixing region between the inlet and the outlet and fuel injectors. The fuel injectors are respectively arrayed along the wall at corresponding apertures to inject fuel into the mixing region. Each fuel injector includes a fuel injector body defining an injection outlet through which fuel exits the fuel injector body toward the mixing region and a pintle. The pintle includes a first end, a second end and a pintle body extending between the first and second ends. At least one of the first and second ends is attachable to the fuel injector body to position the pintle body between the injection outlet and the mixing region.

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.

A gas burner includes a first tube and a second tube, wherein the first tube includes a first section and a second section which are connected to each other; the second section includes a chamber and an air outlet disposed at one side of the chamber; a cross-sectional area of the chamber of the second section is larger than a cross-sectional area of one end of the first section communicating with the second section. The second tube includes an air inlet section, a venturi section, and an extending section, wherein one end of the air inlet section includes an air inlet; the air inlet is adapted to supply gas; the venturi section is between the air inlet section and the extending section; the extending section extends into the chamber of the second section of the first tube and has a cross-sectional area small than the cross-sectional area of the chamber.

One aspect of the disclosure provides a termination for use with a furnace. The termination, in one embodiment, includes a face plate including an exhaust region and an air supply region, the face plate having a front surface and an opposing back surface. The termination, in this embodiment, further includes an exhaust termination portion extending from the back surface in the exhaust region, the exhaust termination portion capable of engaging a terminal end of a variety of different size exhaust conduits associated with a furnace. The termination, in this embodiment, further includes an opening extending through the face plate in the exhaust region, the opening aligned with the exhaust termination portion.

A combustor or augmentor of a gas turbine engine is provided. The combustor or augmentor includes a wall defining apertures and an interior having an inlet, an outlet and a mixing region between the inlet and the outlet and fuel injectors. The fuel injectors are respectively arrayed along the wall at corresponding apertures to inject fuel into the mixing region. Each fuel injector includes a fuel injector body defining an injection outlet through which fuel exits the fuel injector body toward the mixing region and a pintle. The pintle includes a first end, a second end and a pintle body extending between the first and second ends. At least one of the first and second ends is attachable to the fuel injector body to position the pintle body between the injection outlet and the mixing region.

A burner includes: an inner gas nozzle which extends along an axis while surrounding the axis, and which is capable of supplying a furnace with an inner combustion oxygen containing gas; a fuel supply nozzle surrounding the inner gas nozzle as seen in a direction along the axis, the fuel supply nozzle being capable of supplying the furnace with a fluid mixture of a solid powder fuel and a carrier gas; an outer gas nozzle surrounding the fuel supply nozzle as seen in the direction along the axis, the outer gas nozzle being capable of supplying the furnace with an outer combustion oxygen containing gas; and a flow-velocity-ratio adjustment apparatus capable of adjusting a relative flow velocity ratio of a discharge flow velocity of the inner combustion oxygen containing gas to a discharge flow velocity of the outer combustion oxygen containing gas.

Combined burner for blowing oxidizing gas and fuel into melting furnace, which is fixedly installed into the furnace and provided with outlet apertures for fuel and oxidizing gas, consists, according to this invention, of fixed part (2) of the burner (1) and of a movable nozzle (4), which is rotatably installed inside the body (2.1) of the fixed pan (2) of the burner, supply (7) of the oxidizing gas is connected to the movable nozzle (4) and it is controlled by actuator (3), installed outside of the working space of the furnace, while the axis x2 of the orifice of the movable nozzle (4) is diverted front the rotation axis x1 of the movable nozzle (4) by angle a in the range of 5-60 and the movable nozzle (4) is rotatable around the axis X1 in any direction by angle in the range of 0-180. The movable nozzle allows directing blown gases into various places in the furnace. At the same time, the whole burner is fixedly installed in the wall or ceiling, or the cover of the furnace, and the space of the furnace thus remains sealed.

A gas burner includes a first tube and a second tube, wherein the first tube includes a first section and a second section which are connected to each other; the second section includes a chamber and an air outlet disposed at one side of the chamber; a cross-sectional area of the chamber of the second section is larger than a cross-sectional area of one end of the first section communicating with the second section. The second tube includes an air inlet section, a venturi section, and an extending section, wherein one end of the air inlet section includes an air inlet; the air inlet is adapted to supply gas; the venturi section is between the air inlet section and the extending section; the extending section extends into the chamber of the second section of the first tube and has a cross-sectional area small than the cross-sectional area of the chamber.

One aspect of this disclosure provides a heat exchanger that comprises a first panel half coupled to a corresponding second panel half that form a passageway having at least a first chamber adjacent an inlet end of the passageway and a second chamber and overlapping interference patterns formed in each of the first and second panel halves that extend along at least a portion of the length of the passageway and located between at least the first and second chambers.