KR102269062B1 - 3D fuel spray injector with control of injection direction - Google Patents

Abstract

According to the present invention, a fuel inlet for introducing fuel is formed at one end, a fuel outlet through which fuel flowing in from the fuel inlet is discharged is formed at the other end, and a plurality of guiding the movement of fuel between the fuel inlet and the fuel outlet is provided. A fuel supply pipe provided with a fuel flow path; a fuel chamber in which one side communicates with the fuel inlet and the fuel is accommodated therein; and a connector communicating with the fuel outlet is formed at one end, and a spray port is formed at the other end in a direction in which fuel is sprayed to the outside, so that fuel passes through the connector and passes through the atomization port to atomize fuel and gas It includes a spray nozzle for spraying the fuel, and the fuel supply pipe is characterized in that the length is variable.

Description

3D fuel spray injector with control of injection direction

The present invention relates to a fuel spray injector, and more particularly, three or more different lengths and controllable injection directions for effectively spraying fuel and gas through a fuel supply pipe and a gas supply pipe whose length can be changed. Dimensional fuel atomizing injector.

In general, burners used in industrial furnaces, kilns, boilers, incinerators, etc. have a large amount of oil combustion. Therefore, depending on its performance, operating cost and environmental pollution are greatly affected, so when setting the burner, combustion is possible with low excess air, and the flame should be short and high calorific value. In addition, the generation of pollutants such as dust and SO4 and NOx (nitrogen oxide) should be low, and the stability and responsiveness of the flame should be high.

In order to achieve good combustion, the injection condition of fuel must be good, and the mixture of injected fuel and combustion air must be perfect, and the amount of combustion air, air flow rate, uniformity of the air flowing into the register, and the air in the flame retarder Rotation has a great influence on combustion, and these factors largely depend on the structural characteristics of the fuel injection nozzle.

In general, a conventional injection nozzle capable of spraying oil fuel and burning it can be divided into an internal mixing type, an external mixing type, and an intermediate mixing type according to the mixing position of the oil fuel and the atomization material for finely dividing the oil fuel. Here, compressed air or water vapor is used as the atomizing material, and since the gas has a low density, a large relative velocity is generated between the gas and the liquid having a low injection speed even at a low injection pressure, thereby atomization of the liquid occurs.

1 is a schematic cross-sectional view of a fuel injection nozzle generally used.

As shown in FIG. 1 , the fuel injection nozzle 1 is provided with a fuel supply pipe 10 to which fuel is supplied. An injection nozzle 20 is coupled to the front end of the fuel supply pipe 10 .

A plurality of injection holes 22 are formed in an annular shape in the injection nozzle 20 in a direction in which fuel is supplied. When fuel is injected through the injection hole 22 , the fuel is injected toward the front of the injection nozzle 20 , so that the fuel cannot be injected into the middle portion C of the injection hole 22 .

Therefore, when the injection nozzle 20 is installed in the combustion chamber S to perform the combustion process, the flame is divided into upper and lower sides and both sides by the fuel injected through the injection port 22 of the injection nozzle 20, at this time, Even if a gas such as air is supplied through the air inlet pipe 40, air is supplied only to the outer part of both flames, so that the air is not smoothly supplied to the middle part (B) of the injection port 22 and the temperature rises. and, there is a problem in that the amount of NOx (nitrogen oxide), which is an environmental pollutant, is increased.

Republic of Korea Registered Utility Model Publication No. 20-0191094

Accordingly, the present invention has been devised to solve the above problems, and the problem to be solved by the present invention is to reduce the size of the spray droplet of the fuel and increase the spray angle at the same time. An object of the present invention is to provide a three-dimensional fuel spray injector capable of controlling an injection direction, which is configured so that gases can be mixed smoothly.

In addition, it is to provide a three-dimensional fuel spray injector capable of controlling the injection direction provided with a function capable of variable control of the length of the fuel supply pipe.

However, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

The present invention was created to improve the problems of the prior art as described above, and a fuel inlet for introducing fuel is formed at one end, and a fuel outlet through which fuel flowing in from the fuel inlet is discharged is formed at the other end, and the a fuel supply pipe provided with a plurality of fuel passages for guiding the movement of fuel between the fuel inlet and the fuel outlet; a fuel chamber in which one side communicates with the fuel inlet and the fuel is accommodated therein; and a connector communicating with the fuel outlet is formed at one end, and a spray port is formed at the other end in a direction in which fuel is sprayed to the outside, so that fuel passes through the connector and passes through the atomization port to atomize fuel and gas Including; a spray nozzle for spraying the fuel supply pipe may have a variable length.

In addition, the fuel supply pipe includes a center flow path pipe extending in a horizontal direction from the fuel inlet toward the fuel discharge port, and a turning flow path pipe formed to correspond to the left and right sides of the center flow pipe, respectively, and , the orbiting flow path pipe may be formed in a curved shape.

In addition, each of the center flow path pipe and the orbiting flow path pipe may be manufactured to have a variably changed length.

In addition, a cross-sectional area of the fuel inlet is smaller than a cross-sectional area of one end of the center flow pipe connected to the fuel inlet in a horizontal direction, and a cross-sectional area of one end of the center flow pipe is smaller than a cross-sectional area of a center of the center flow pipe, and A cross-sectional area of the center of the center flow pipe may be smaller than or equal to a cross-sectional area of the other end of the center flow pipe connected to the fuel outlet.

In addition, it may be formed to be tapered in a direction in which the width increases from one end of the center flow pipe toward the center of the center flow pipe.

In addition, a plurality of the orbiting flow pipe may be radially disposed around the spray nozzle.

In addition, a fuel supply line for supplying fuel into the fuel chamber may be connected to the other side of the fuel chamber opposite to the fuel inlet.

In addition, a gas inlet for introducing gas is formed at one end, and a gas outlet communicating with the connector to discharge the gas introduced from the gas inlet is formed at the other end, and movement of gas between the gas inlet and the gas outlet It may be configured to include a gas supply pipe in which a gas flow path for guiding is formed.

In addition, the gas outlet of the gas supply pipe may be installed at a position adjacent to the other end of the center flow pipe.

According to the three-dimensional fuel spray injector capable of controlling the injection direction according to an embodiment of the present invention, the fuel is composed of a plurality of connection passages, flows through a fuel supply pipe with variable length, and is sprayed through the spray nozzle, so that the spray The size of the droplet is small and it can be sprayed while spreading widely. Therefore, by preventing the flame from rising too high and making the flame shorter at the same time, there is an effect that can significantly reduce the amount of nitrogen oxide (NOx) generated during combustion.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later, so the present invention is a matter described in such drawings It should not be construed as being limited only to
1 is a schematic cross-sectional view showing a generally used fuel injection nozzle.
2 is a perspective view showing the configuration of a three-dimensional fuel spray injector capable of controlling the injection direction according to an embodiment of the present invention.
3 is a schematic cross-sectional view showing the configuration of a three-dimensional fuel spray injector capable of controlling the injection direction according to an embodiment of the present invention.
4 and 5 are diagrams showing the shape and flow analysis of a three-dimensional fuel spray injector capable of controlling the injection direction according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment may have various changes and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component. When a component is referred to as being “connected” to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. Meanwhile, other expressions describing the relationship between elements, that is, “between” and “immediately between” or “neighboring to” and “directly adjacent to”, etc., should be interpreted similarly.

The singular expression is to be understood as including the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the described feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Terms defined in the dictionary should be interpreted as being consistent with the meaning of the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

2 is a perspective view showing the configuration of a three-dimensional fuel spray injector capable of controlling the injection direction according to an embodiment of the present invention.

As shown in FIG. 2 , a fuel supply pipe 100 is provided in the three-dimensional fuel spray injector capable of controlling the injection direction. In this embodiment, the fuel supply pipe 100 includes a center flow path pipe 110 , a turning flow path pipe 111 , a fuel inlet 120 , and a fuel outlet 130 .

The fuel inlet 120 is a portion through which the fuel delivered from the fuel chamber 140 to be described below is introduced, and the fuel outlet 130 is a portion through which the fuel introduced from the fuel inlet 120 is discharged. In addition, the center flow path pipe 110 and the turning flow path pipe 111 to be described below are provided between the fuel inlet 120 and the fuel outlet 130 .

In this embodiment, the length to diameter ratio of the fuel supply pipe 100 is preferably 5:1 to 10:1. This is to allow the fuel to flow uniformly while moving along the fuel supply pipe 100 .

In this embodiment, the fuel supply pipe 100 is provided with a plurality of fuel passages. The fuel passage may be formed by pipes having different lengths.

To this end, the fuel supply pipe 100 may include a center flow path pipe 110 and a turning flow path pipe 111 . As shown in FIG. 3 , the center flow pipe 110 extends from the fuel inlet 120 to the fuel outlet 130 in a horizontal direction. One end 110a of the center flow pipe 110 is connected to the fuel inlet 120 , and the other end 11b is connected to the fuel outlet 130 .

In this embodiment, the cross-sectional area of the fuel inlet 120 is smaller than the cross-sectional area of the one end 110a of the center flow pipe 110 . That is, as shown in FIG. 3 , the width of the fuel inlet 120 is smaller than the width of the one end 110a of the center flow pipe 110 . In addition, the cross-sectional area of the one end 110a of the center flow pipe 110 is smaller than the cross-sectional area of the center 110c of the center flow pipe 110 .

In addition, the cross-sectional area of the center 110c of the center flow pipe 110 may be smaller than or equal to the cross-sectional area of the other end 110b of the center flow pipe 110 connected to the fuel outlet 130 . That is, the width of the center 110c of the center flow pipe 110 may be the same as the width of the fuel outlet 130 or may be formed to have a larger width than that of the fuel outlet 130 .

Meanwhile, the cross-sectional area of the fuel inlet 120 is smaller than the cross-sectional area of the orbiting flow passage pipe 111 . That is, as shown in FIG. 3 , the width of the fuel inlet 120 is smaller than the width of the one end 111a of the orbiting flow passage pipe 111 .

And the cross-sectional area of the one end 111a of the orbiting flow passage pipe 111 is smaller than the cross-sectional area of the center 111c of the orbiting passage pipe 111, and the cross-sectional area of the center 111c of the orbiting passage pipe 111 is The cross-sectional area of the other end 111b of the orbiting flow path pipe 111 connected to the fuel outlet 130 may be smaller than or equal to that of the cross-sectional area.

In addition, it may be tapered in a direction in which the width increases from one end 110a of the center flow pipe 110 toward the center 110c of the center flow pipe 110 .

The orbiting flow path pipe 111 is formed to correspond to the left and right sides of the center flow path pipe 110 , respectively. That is, the orbiting flow path pipe 111 may be radially disposed around the center flow path pipe 110 . Here, the orbiting flow path pipe 111 may be formed in a curved shape. This is to allow the fuel to spread widely while being stagnant for a predetermined time through the orbiting flow path pipe 111 .

In this embodiment, the cross-sectional area of the center 110c of the center flow passage pipe 110 may be larger than the cross-sectional area of the center 111c of the orbiting flow passage pipe 111 . This is to allow the fuel to smoothly escape through the center flow path pipe 110 rather than the orbiting flow path pipe 111 .

In the present embodiment, there are two orbiting flow passage pipes 111, but is not limited thereto. For example, a plurality of orbiting flow passage pipes 111 may be provided radially with respect to the center flow passage tube 110 .

According to the fuel supply pipe 100 configured in this way, the left and right flow is induced while passing through the center flow path pipe 110 and the turning flow path pipe 111 at the same time as fuel flows in from the fuel inlet 120 , , through this flow, the fuel flows and spreads left and right even inside the center flow pipe 110 and goes out to the fuel outlet 130 , so that the spray angle of the fuel can be expanded.

In addition, since the fuel passes through the other end 110b of the center flow path pipe 110 and the other end 111b of the orbiting flow path pipe 111 and exits to the fuel outlet 130 at the same time, that is, the center flow path pipe ( Since the fuel passing through 110 flows greatly while meeting the fuel passing through the orbiting flow passage pipe 111 at the fuel outlet 130 , they collide with each other to cause atomization, thereby increasing the spray angle.

Accordingly, as shown in FIGS. 4 and 5 , the center passes through the fuel inlet 120 and passes through one end 110a of the center flow path pipe 110 and one end 111b of the turning flow path pipe 111 . A flow of fuel passing through the flow path pipe 110 is generated, and the fuel passing through the center flow path pipe 110 meets the fuel passing through the turning flow path pipe 111 at the fuel outlet 130 and flows greatly. Therefore, the angle of flow is formed large.

As such, when the fuel flows through the fuel supply pipe 100 and the spray angle increases, when it meets the gas, it collides with each other and final atomization occurs, thereby reducing the size of the fuel droplets and can be easily mixed with the gas. , the spray angle becomes wider.

Therefore, it is possible to further increase the combustion efficiency, and by preventing the flame temperature from rising too high and making the flame shorter at the same time, the amount of nitrogen oxide (NOx) generated during combustion can be significantly reduced.

The center flow path pipe 110 and the orbiting flow path pipe 111 may be manufactured to have variably changed lengths, respectively. Specifically, the center flow path pipe 110 and the turning flow path pipe 111 are made of a telescopic type pipe, so that the length can be changed automatically or manually by the user through an active control (not shown) as needed. , the fuel supply pipe 100 may be deformed to be inclined symmetrically or asymmetrically. That is, by applying a hydraulic cylinder structure using hydraulic pressure, it is possible to control the length of the multi-stage telescopic type center flow pipe 110 or the turning flow pipe 111 with a hydraulic pump. At this time, by connecting the active controller and the hydraulic pump, it is possible to control the operation not only manually but also automatically.

The active control suspension applied to the present invention is a system that detects the driving state of the vehicle with various sensors and adjusts the amount and pressure of oil in the hydropneumatic suspension cylinder to minimize shaking or shock received by the vehicle depending on the road surface condition. it is a device

Accordingly, the orbiting flow path pipe 111 may be bent or bent so as to be bent or manufactured in a bellows method in which a user can adjust a desired position or angle. The material of the bellows may be stainless steel.

However, since the stainless material is an embodiment, it should not be construed as being limited to the material. The bellows can freely adjust the direction and angle of the orbiting flow pipe 111, so it is not limited by the mounting location. Therefore, it is possible to adjust the spray in the direction or angle desired by the user. In addition, the orbiting flow path pipe 111 may be manufactured using a special material such as a shape memory alloy that forms a shape in a shape set according to a set environment or situation.

Meanwhile, the fuel inlet 120 is connected to the fuel chamber 140 . A pressurized fuel liquid may be accommodated in the fuel chamber 140 . In this embodiment, the fuel may be light oil or heavy oil. Liquid fuel spray nozzles using diesel or heavy oil have high fuel viscosity, so for efficient atomization, they are first heated to a certain temperature to increase the fluidity of the fuel, then high pressure is applied to the nozzle to inject fine particles. it is preferable The micro-droplets formed in this way are usually burned through a turbulent mixing process using a large amount of excess air. In this case, heavy oil is sprayed with a pressure of (20 to 25) Bar with a (10 to 14) cSt viscosity in the (60 to 100) ℃ temperature range to make fine droplets, while light oil has a viscosity of (3) at 20 ℃ room temperature. ~12) cSt followed by less need for preheating compared to heavy oil.

To this end, a heater H may be provided in the fuel chamber 140 . The heater H serves to reheat the fuel supplied from the fuel chamber 140 . In the present embodiment, the heater H is provided in the fuel chamber 140, but is not limited thereto. For example, it may be provided on the outer surface of the fuel chamber 140 . The heater H may be an electrical resistance heating element. Here, the electrical resistance heating element is a device that generates heat by electrical resistance, and may be a coil device that allows electricity to flow through a coil or the like commonly used.

Meanwhile, as shown in FIG. 2 , a gas supply pipe 200 may be provided in the fuel spraying device for incineration. The gas supply pipe 200 serves to supply a gas such as air to the fuel.

In this embodiment, a gas inlet 210 is formed at one end of the gas supply pipe 200 . The gas inlet 210 is a part for introducing gas.

A gas outlet 220 is formed at the other end of the gas supply pipe 200 . The gas outlet 220 communicates with the connector 310 of the spray nozzle 300 to be described below. The gas outlet 220 is a portion through which the gas introduced from the gas inlet 210 is discharged. The gas outlet 220 may be installed at a position adjacent to the other end 110b of the center flow pipe 110 . Alternatively, the gas discharge port 220 may be installed between the other end 111b of the orbiting flow path pipe 111 . This is to facilitate mixing of the gas with the fuel.

A gas flow path 230 is formed between the gas inlet 210 and the gas outlet 220 . The gas flow path 230 serves to guide the movement of the gas.

In the present embodiment, only one gas supply pipe 200 is provided, but is not limited thereto. For example, the gas supply pipe 200 may be configured in plurality if necessary, and in this case, the gas supply pipe 200 may be disposed to cross the orbiting flow path pipe 111 with each other.

A gas chamber 240 is connected to one end of the gas supply pipe 200 . A pressurized gas may be accommodated in the gas chamber 240 . In this embodiment, the gas is air, but not necessarily limited thereto. For example, it may be water vapor.

On the other hand, as shown in Figures 2 and 3, the fuel spraying device for incineration is provided with a spray nozzle (300). The spray nozzle 300 serves to disperse fuel and gas so that the fuel is atomized.

A connector 310 is formed at one end of the spray nozzle 300 . The connector 310 communicates with the fuel outlet 130 and the gas outlet 220 .

A spray port 320 is formed at the other end of the spray nozzle 300 . The spray port 320 is formed in a direction to be sprayed to the outside, that is, a direction to be sprayed toward the combustion chamber (S). In this embodiment, the cross-sectional area of the spray port 320 is formed larger than the cross-sectional area of the connector 310 . Accordingly, the fuel and gas spread widely while passing through the connector 310 and the spray hole 320 so that the flame spreads while being short. In this process, the gas flowing in through the gas outlet 220 vortexes and mixes with the fuel. This can be good.

On the other hand, a perforated plate (not shown) may be selectively coupled to the spray port 320 of the spray nozzle 300 . The perforated plate is provided with a plurality of through-holes so that the spray angle is further widened while passing through the through-holes when liquid and gas are mixed and sprayed.

Meanwhile, the ultrasonic generator 400 is installed inside the fuel supply pipe 100 . In this embodiment, the ultrasonic generator 400 is installed inside the center flow pipe 110 .

As described above, according to the fuel spraying device for incineration according to the present embodiment, the fuel flows through the fuel supply pipe 100 composed of the center flow path pipe 110 and the plurality of orbiting flow path pipes 111 and the spray nozzle 300 is Since it is sprayed through, the size of the spray droplet is small and it can be sprayed while spreading widely.

Therefore, since combustion efficiency can be increased, the amount of nitrogen oxides (NOx) generated during combustion can be significantly reduced by preventing the flame temperature from rising too high and making the flame shorter at the same time.

In particular, an ultrasonic generator 400 that generates an ultrasonic wave to promote atomization of fuel may be installed in the fuel supply pipe 100 . Accordingly, since atomization of fuel is further promoted, the size of spray droplets can be further reduced, and at the same time, the spray angle can be widened, thereby further increasing combustion efficiency.

The detailed description of the preferred embodiments of the present invention disclosed as described above is provided to enable any person skilled in the art to make and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, a person skilled in the art may use each configuration described in the above-described embodiments in a way that is combined with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that are not explicitly cited in the claims may be combined to form an embodiment, or may be included as new claims by amendment after filing.

100: fuel supply pipe
101: fuel flow pipe
110: Center Euro tube
111: turning flow pipe
120: fuel inlet
130: fuel outlet
140: fuel chamber
200: gas supply pipe
210: gas inlet
220: gas outlet
230: gas flow path
300: spray nozzle
310: connector
320: spray nozzle
H: heater
S: combustion chamber

Claims (9)

A fuel inlet for introducing fuel is formed at one end, a fuel outlet through which fuel flowing in from the fuel inlet is discharged is formed at the other end, and a plurality of fuel passages for guiding the movement of fuel between the fuel inlet and the fuel outlet. A fuel supply pipe provided with;
a fuel chamber in which one side communicates with the fuel inlet and the fuel is accommodated therein; and
A connector communicating with the fuel outlet is formed at one end, and a spray port is formed at the other end in a direction in which the fuel is sprayed to the outside, so that the fuel passes through the connector and passes through the atomization port to atomize the fuel and gas. A spray nozzle for spraying;
The fuel supply pipe is capable of controlling the injection direction, characterized in that the length is variable,
The fuel supply pipe,
a center flow pipe extending from the fuel inlet toward the fuel outlet in a horizontal direction, and
It is configured to include a turning flow path pipe formed to correspond to the left and right sides, respectively, with respect to the center flow path pipe,
The orbiting flow path pipe is made of a curve,
The center flow path pipe and the orbiting flow path pipe are each manufactured to have a variable length,
The cross-sectional area of the fuel inlet is smaller than the cross-sectional area of one end of the center flow pipe, the width is smaller than the width of one end of the center flow pipe, and the cross-sectional areas of both ends of the center flow pipe are smaller than the cross-sectional area of the center;
A cross-sectional area of the fuel inlet is smaller than a cross-sectional area of the orbiting flow passage pipe, and a width is smaller than a width of one end of the orbiting flow passage pipe;
The cross-sectional area of one end of the orbiting flow pipe is smaller than the cross-sectional area of the center, and the cross-sectional area of the center is smaller than or equal to the cross-sectional area of the other end,
It is formed to be tapered in a direction in which the width increases from one end of the center flow pipe toward the center,
The orbiting flow path pipe is provided with a plurality of radially curved lines corresponding to the left and right sides, respectively, with respect to the center flow path pipe,
The central cross-sectional area of the center flow passage pipe is formed larger than the central cross-sectional area of the orbiting flow passage tube,
As fuel flows in from the fuel inlet and passes through the center flow pipe and at the same time passes the orbiting flow pipe, a left and right flow is induced and exits to the fuel outlet, so that the spray angle of the fuel is expanded,
Atomization occurs as the fuel passing through the center flow path collides with the fuel passing through the turning flow path pipe at the fuel outlet,
The center flow path pipe and the turning flow path pipe are made of a telescopic type pipe, and the length is changed through active control,
A three-dimensional fuel spray injector, characterized in that a heater for reheating the fuel supplied to the fuel chamber is provided.
delete delete The method of claim 1,
The cross-sectional area of the fuel inlet is smaller than the cross-sectional area of one end of the center flow pipe connected to the fuel inlet in the horizontal direction,
The cross-sectional area of one end of the center flow pipe is smaller than the cross-sectional area of the center of the center flow pipe,
A three-dimensional fuel spray injector capable of controlling the injection direction, characterized in that the cross-sectional area of the center of the center flow pipe is smaller than or equal to the cross-sectional area of the other end of the center flow pipe connected to the fuel outlet.
5. The method of claim 4,
A three-dimensional fuel spray injector capable of controlling the injection direction, characterized in that it is tapered in a direction in which the width increases from one end of the center flow pipe toward the center of the center flow pipe.
6. The method of claim 5,
The three-dimensional fuel spray injector capable of controlling the injection direction, characterized in that a plurality of the orbiting flow pipe is radially arranged around the spray nozzle.
7. The method of claim 6,
A three-dimensional fuel spray injector capable of controlling an injection direction, characterized in that a fuel supply line for supplying fuel into the fuel chamber is connected to the other side of the fuel chamber at a position opposite to the fuel inlet.
8. The method of claim 7,
A gas inlet for introducing gas is formed at one end, and a gas outlet communicating with the connector to discharge the gas introduced from the gas inlet is formed at the other end, and the movement of gas is guided between the gas inlet and the gas outlet. A three-dimensional fuel spray injector capable of controlling the injection direction, characterized in that it comprises a gas supply pipe in which a gas flow path is formed.
9. The method of claim 8,
A three-dimensional fuel spray injector capable of controlling the injection direction, characterized in that the gas discharge port of the gas supply pipe is installed at a position adjacent to the other end of the center flow pipe.

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