A burner includes an atomizing chamber, a flame tube in front of the atomizing chamber adapted to direct combusting fuel introduced by the atomizing chamber along an interior of the flame tube, and a controller. The controller is programmed to independently control rate of fuel flow to the atomizing chamber, rate of atomizing air flow to the atomizing chamber, and rate of combustion air to the flame tub. The controller is also programmed to perform operations including regulating, based on output of a gas sensor, at least the rate of combustion air to the flame tube to substantially maintain a first predetermined amount of excess air in the flame tube.

A method of inducing swirl in pressurized air flowing through an air passageway of a fuel nozzle of a gas turbine engine includes inducing swirl in the pressurized air at an exit of the air passageway, by directing the pressurised air through helicoidal grooves formed at a downstream end of the air passageway. The swirling pressurized air exiting the air passageway is then directed into a mixing zone at a downstream end of the fuel nozzle.

A burner includes an atomizing chamber, a flame tube in front of the atomizing chamber adapted to direct combusting fuel introduced by the atomizing chamber along an interior of the flame tube, and a controller. The controller is programmed to independently control rate of fuel flow to the atomizing chamber, rate of atomizing air flow to the atomizing chamber, and rate of combustion air to the flame tub. The controller is also programmed to perform operations including regulating, based on output of a gas sensor, at least the rate of combustion air to the flame tube to substantially maintain a first predetermined amount of excess air in the flame tube.

A nozzle assembly including an inner tube and an outer housing. The inner tube terminates at an outlet end and defines a first flow passage. The first flow passage directs first fluid flow to the outlet end in a primary flow direction. The outer housing includes a tubular side wall and an end wall. The tubular side wall defines a central axis. The end wall defines an exit orifice and an interior guide structure. The outlet end is axially aligned with the exit orifice. A second flow passage is established between the inner tube and the outer housing. The interior guide structure is configured and arranged relative to the outlet end to direct at least a portion of a second fluid flow from the second flow passage toward the outlet end in a direction initially opposite the primary flow direction for generating mixed fluid flow.

An atomizer includes a mixing chamber for mixing spray fuel and spray medium, a spray fluid flow passage for supplying the spray fluid into the mixing chamber, a spray medium flow passage for supplying the spray medium into the mixing chamber, and an outlet hole for spraying a mixed fluid of the spray fluid and the spray medium which have been mixed in the mixing chamber to the outside. The spray medium flow passage includes a first spray medium supply hole for supplying the spray medium into the mixing chamber, and a second spray medium supply hole for supplying the spray medium into a region more downstream than the first spray medium supply hole in the mixing chamber, and the second spray medium supply hole supplies the spray medium to a region around the outlet hole.

An atomizer of the invention includes a mixing chamber, spray fluid flow passages supplying a spray fluid to the mixing chamber, a spray medium flow passage supplying a spray medium to the mixing chamber, outlet holes spraying a fluid mixture of the spray fluid and the spray medium, and fluid mixture flow passages connecting the mixing chamber and the outlet holes to each other. The fluid mixture flowing through each of the fluid mixture flow passages joins with each other at a joining section and is sprayed from the outlet hole. The mixing chamber includes a middle ejection hole spraying the spray fluid to the mixing chamber. The middle ejection hole is arranged at a joining section of the spray fluid flow passages. The spray fluid flowing through the spray fluid flow passages joins with each other at the joining section and is sprayed from the middle ejection hole.

A feed injector for a circulating fluid bed reactor is fitted with a discharge nozzle with a circular, radially notched discharge orifice to improve the surface-to-volume ratio of the spray pattern formed by the nozzle. The feed injector is useful for injecting fluids into various types of circulating fluid bed reactors in which good contact between the components of the fluidized bed and the injected fluid is required. It is particularly useful in fluid coking reactors.

The present invention involves providing a viscous fluid in a particular format and implementations thereof. In particular, a viscous slave fluid is provided in a particular format, wherein the particular format can be an end result or an intermediate result for the viscous fluid. In the case of an intermediate result, the viscous fluid in the second format may be further processed to a third format. Implementations or applications include supercharged fuel injection systems, methods, and apparatuses for internal combustion, lean-burn oil pre-mixing systems, methods, and apparatuses for liquid fuel combustion, and medical or biomedical devices, systems, and methods.

A well test burner system includes a plurality of burner nozzles. At least one of the burner nozzles includes a well product inlet, an air inlet, an air/well product mixture outlet, and an automatic valve. The automatic valve is responsive to a remote signal to cease flow of well product to the air/well product outlet.

A method of inducing swirl in pressurized air flowing through an air passageway of a fuel nozzle of a gas turbine engine includes inducing swirl in the pressurized air at an exit of the air passageway, by directing the pressurised air through helicoidal grooves formed at a downstream end of the air passageway. The swirling pressurized air exiting the air passageway is then directed into a mixing zone at a downstream end of the fuel nozzle.