초록 ▼

A fuel injection nozzle for a turbo engine is mounted at the base of a combustion chamber, either tubular or annular, by means of an intermediate inwardly flared member having openings through its sides for admitting cooling air. An annular flange structure around the intermediate member supports th

A fuel injection nozzle for a turbo engine is mounted at the base of a combustion chamber, either tubular or annular, by means of an intermediate inwardly flared member having openings through its sides for admitting cooling air. An annular flange structure around the intermediate member supports the same and defines an annular space with the base of the chamber for a layer of cooling air admitted to that space through holes in the base. Several forms are disclosed in each of which the various holes and air inlets are dimensioned and positioned to provide a stoichiometric mixture of air and fuel under substantially all conditions of operation.

대표청구항 ▼

In a combustion chamber for turbo engines, comprising a primary or combustion zone, provided with primary holes providing for the radial injection of a first air flow, a dilution and mixing zone, in which a second air flow is injected, and at least one injector of the pneumatic atomization prevapori

In a combustion chamber for turbo engines, comprising a primary or combustion zone, provided with primary holes providing for the radial injection of a first air flow, a dilution and mixing zone, in which a second air flow is injected, and at least one injector of the pneumatic atomization prevaporization type, mounted on the base, with their axes parallel to that of the chamber means providing for the introduction of the fuel due to a third air flow, characterized in that between each injector and the base of the chamber which is located upstream of the primary zone, an intermediate segment is provided having dimensions which are reduced with respect to those of the chamber and defining a volume which flares in the direction of the gas flow and the walls of which are provided with a large number of small diameter holes, which are uniformly distributed, permitting the injection of a fourth flow of air in the form of jets which penetrate the carburized mixture from the injector, the first, third, and fourth air flows in total comprising the primary air which is necessary for the combustion reactions, this fourth flow of air representing 1/6 to ⅓of the primary air, the third and fourth air flows which are adding being such that they form a stoichiometric mixture with the fuel which is injected at low operation in the intermediate zone; the first, third and fourth air flows which are added form, with the fuel, a stoichiometric mixture in the combustion zone during normal operation.