Device for supplying fuel to the main combustion chamber

 

(57) Abstract:

The invention relates to a device controlling the feed of fuel to the main combustion chamber of the CCD in the fuel injector. Device for supplying fuel to the main combustion chamber of the CCD contains a small fuel injector, and the injector is made in the form of the outer shell (sleeve) small nozzle, the outer and inner air swirler, and the nozzle (sleeve) made wysokodochodowy and held in a stationary position by a spring, and the blades of the outer swirler are pivoted. The invention allows to extend the range of stable combustion and to ensure the stability of the combustion process by increasing fuel consumption. 7 Il.

The invention relates to aircraft engine industry, in particular to devices regulate the flow of fuel in the main combustion chamber (ACS) of the CCD in the fuel injector, internal and external unmanaged depending on the operation modes.

A device for supplying fuel to the main combustion chamber GTE containing small fuel injector, and the injector is made in the form of the outer shell (sleeve) small nozzle, the outer and inner air swirler (see application Velocifero burning.

The objective of the invention is to expand the range of stable combustion and stability of the combustion process by increasing fuel consumption.

The task is solved in that the device for supplying fuel to the main combustion chamber of the CCD contains a small fuel injector, and the injector is made in the form of the outer shell (sleeve) small nozzle, the outer and inner air swirler, and the nozzle (sleeve) made wysokodochodowy and held in a stationary position by a spring, and the blades of the outer swirler are pivoted.

The technical result of the invention is achieved by the fact that when you increase the fuel pressure in the system starts to work visokogradnja nozzle due to the force of fuel pressure on its inner surface, while expanding the range of stable combustion. This range is expanding due to combination of pneumatic and centrifugal injectors. As the pneumatic injectors very fine spray, it is possible flameout with increasing air flow, and centrifugal injectors there are areas of continuous burning because of the unequal size of the droplets of fuel and larger droplets form these zones.

Device for adjusting the fuel supply to the ACS CCD contains the injector 1, its outer casing is a sleeve 2, which is wysokodochodowy nozzle, able to move along the slots 9 by increasing the fuel pressure to the surface 8, the spring 3, which holds the sleeve 2 in a stationary position and is located in the annular cavity 10, the rotary blades 4, associated with the sleeve 2 through the slots 5. The injector receives fuel through the channel 7, and the flow of fuel to wysokodochodowy the nozzle goes through the channels 11, and the output from the device it is mixed with air entering through the channel 6.

In the initial position corresponding to the idle or running at low engine speed, the sleeve 2 is in the position shown in Fig. 2, in the left, and is retained by the spring 3, and the fuel is supplied only through a small nozzle 1.

When increasing the fuel consumption of the CCD, and therefore, by increasing its pressure in the fuel system case 2 begins to move, compressing the spring 3. The move will occur as long as the balance si is 8 is determined by the stiffness of the spring 3 and is selected from the conditions of maintaining the combustion zone of optimal values of the coefficient of excess air fuel mixture, providing stable combustion in a wide range of modes (from idling to maximum).

When the transition to the reduced power modes of operation the fuel pressure decreases, the spring 3, rasimas, moves the sleeve 2 on the cover of the channels 11, as a result, the fuel is supplied only through the nozzle 1, which corresponds to the optimal fuel / air mixture.

Device for supplying fuel to the main combustion chamber GTE containing small fuel injector, and the injector is made in the form of the outer shell (sleeve) small nozzle, the outer and inner air swirler, characterized in that the nozzle (sleeve) made wysokodochodowy and held in a stationary position by a spring, and the blades of the outer swirler are pivoted.

 

Same patents:

The invention relates to gas turbine engines, particularly aircraft and stationary power installations

The invention relates to a stationary gas turbine engines, in particular for low-emission combustion chambers

The invention relates to the field of engineering

The invention relates to methods and devices for the preparation and combustion of the combustible mixture used in teploenergostantsij TPP, TPP, production-heating boilers, and other heating units, and aims to reduce emissions of oxides of nitrogen

Burner // 2099639

The invention relates to energy, transport and chemical engineering and can be used in combustion chambers of gas turbines, and other fuel combustion devices

The invention relates to an industrial power system, namely the automatic regulation of fuel supply, and can be used in automatic control systems fuel in the furnace of a steam boiler operating on multiple fuel types, different thermal characteristics

The invention relates to a method of determining the average radiation and the radiation average temperature of the surface area of the burning layer using infrared or thermographic camera installations burning and regulation of the combustion process, at least in a controlled area of the surface that flares

The flow regulator // 2142156
The invention relates to hydraulics and can be used, for example, in automatic control systems of a power plant

The invention relates to a power system, in particular the automation of the processes of combustion in thermal installations

The invention relates to a method for regulation of some or all factors affecting the combustion of the fuel on the grate

The invention relates to a method of controlling the operation of the burners, in particular to the regulation of relations fuel/air for burners used in the smelting of copper

The invention relates to energy and can be used in various fuel combustion units, in which the oxidizer fuel used by the air

The invention relates to the automation of heat power processes, and more specifically to automatic regulation and control of the work of the oil-gas burners of small capacity

The invention relates to nozzles, providing premixing of fuel and air for combustion chambers of gas turbine installations
Up!