KR101749221B1

KR101749221B1 - Exhaust reduction backflow prevention device

Info

Publication number: KR101749221B1
Application number: KR1020160030066A
Authority: KR
Inventors: 김광림; 김헌중
Original assignee: 김광림
Priority date: 2016-03-14
Filing date: 2016-03-14
Publication date: 2017-06-21

Abstract

An object of the present invention is to provide a backflow prevention assembly for a soot reduction apparatus, which comprises an ignition part (20) provided at a base end of a main body (10) having a space inside thereof; A pipe cone (30) built in the space portion of the main body (10) and having a soot inlet hole communicated with the inner and outer peripheral surfaces; And has a plurality of wings (52) along the circumferential direction and has a hole facing the wing (52) and is interposed between an inner circumferential surface of the main body (10) and an outer circumferential surface of the pipe cone (30) And a wing plate (50) for partitioning an inner space portion of the ignition portion (10) into a rear space portion and a front space portion communicated with the ignition portion (20).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust reduction backflow prevention device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backflow prevention assembly for a soot reduction device, and more particularly, to a backflow prevention assembly for a soot reduction device, which not only burns a part of the exhaust gas, but also exhausts all exhaust gas, Which prevents reverse flow of the exhaust gas, and prevents a case where the soot combustion efficiency due to the back flow is reduced or the operation of reducing the soot combustion is not properly performed.

Exhaust gas components of automobiles include CO, HC, and NOx, which cause pollution problems. Efforts to purify these harmful components have been made in various ways. BACKGROUND ART Conventionally, a soot purifying apparatus most widely used for removing soot, which is a harmful component contained in exhaust gas discharged from automobiles, collects particulate matter of exhaust gas by a ceramic filter, and then, by means of an intake valve, So as to burn the particulate matter of the filter.

Conventionally, the pressure at which the exhaust gas flows into the ignition portion is excessively large compared with the pressure of the combustion air supplied to the ignition portion, so that the exhaust gas instantaneously flows back to the ignition portion and the spark of the ignition portion is turned off. have. There is a problem in that the flame that burns the soot is turned off when the soot is discharged so that the soot reducing performance that the soot can not be burned in time can not be exhibited properly.

Domestic public utility model room 1999-0018339 (released June 5, 1999) Korean Registered Utility Model No. 20-0218522 (Registered Jan. 16, 2001)

SUMMARY OF THE INVENTION The present invention has been developed in order to solve the above-mentioned problems, and it is an object of the present invention to provide a soot reduction apparatus capable of preventing the soot from flowing back to the ignition section, The main object of the present invention is to provide a backflow prevention assembly for a device.

According to the present invention for solving the above problems,

A main body having a chamber therein and having a soot inlet port on its side; An ignition part provided at a base end of the main body; A pipe cone built in the chamber of the main body and having soot inlet holes communicating with the inner and outer peripheral surfaces; And an inlet pipe having a plurality of inlet holes communicating with the inner and outer peripheral surfaces and having a combustion chamber communicated from a proximal end to a front end thereof, the inlet pipe being connected to the ignition part, the inlet pipe being embedded in the pipe cone. Device is provided.

A wing plate interposed between an inner circumferential surface of the main body and an outer circumferential surface of the pipe cone and having a plurality of wings along a circumferential direction and having a hole facing the wing; And a damper rotatably coupled to the soot inlet port of the main body by a hinge and disposed in a space between a front end of the pipe cone and a front surface of the wing plate.

According to the anti-backflow assembly of the present invention, when soot such as automobiles flows into the soot inlet port of the main body, the anti-backflow assembly of the present invention prevents the smoke from flowing through the holes provided in the respective wings of the wing plate Only a part of the soot flows into the ignition portion and a part of the introduced soot flows into the space portion (i.e., the front space portion) adjacent to the ignition portion through the soot inlet hole of the inlet pipe, The soot is burned while the remaining soot flowing into the wing plate is propelled to a space part far from the ignition part and is combusted therein so that the soot flows back to the ignition part, It is possible to prevent a case where it can not be attached. According to the present invention, the air is introduced through the holes of the pipe cone and enters the inlet pipe through the soot inlet hole of the inlet pipe, so that the soot is ignited, so that sudden high pressure suddenly enters into the main body, So that there is an effect of preventing the case where the soot combustion operation is not performed properly as compared with the conventional case. In the present invention, since the high pressure is higher than the air pressure blown by the ignition portion when the soot enters, the soot is backwardly flowed toward the ignition portion. In the present invention, since the damper and the wing plate have a so- So that it is prevented from backflowing toward the ignition portion of the soot and unfavorably preventing the combustion of the soot. In particular, even if only one of the damper and the wing plate is sufficient for preventing the backflow of the soot, if the damper and the wing plate are used together, the backflow prevention function is at least double, so that the backflow prevention function of the soot is more reliable.

1 is a perspective view of a soot reduction apparatus employing a backflow prevention assembly of a soot reduction apparatus according to the present invention.
Fig. 2 is an exploded perspective view of a main part embedded in the diesel particulate filter of Fig. 1
Fig. 3 is a perspective view schematically showing the combined state of the pipe cone and the wing plate,
FIG. 4 is a perspective view schematically showing a process of manufacturing the wing plate shown in FIG.
5 is a side sectional view showing the structure of a soot reduction apparatus employing the backflow prevention assembly of the present invention

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. The same reference numerals are used for the same parts in the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

Referring to FIG. 1, the backflow prevention assembly of the present invention includes an ignition part 20 provided at a base end of a main body 10 having a space therein, and an ignition part 20 installed in a space part of the main body 10 A wing plate 50 for partitioning the inner space portion of the main body 10 into a rear space portion and a front space portion communicated with the ignition portion 20, a pipe cone 30 having a soot inlet hole communicated with the inner and outer peripheral surfaces, And is characterized in that when the soot suddenly enters, the soot is prevented from flowing back to the ignition portion 20 suddenly by the inflow pressure.

The main body 10 has a cylindrical shape with a space inside. In the present invention, the main body 10 has a cylindrical shape. The main body 10 includes a body plate 12 provided at a base end thereof. A pipe coupling hole for inserting the igniter body pipe 22 is provided at a central portion of the body plate 12. In addition, the body plate 12 includes a burner flange 13 disposed on the outer surface thereof around the pipe coupling hole. The burner flange 13 is formed in a circular ring shape. A fastener such as a bolt is inserted into a fastener hole communicating with both sides of the burner flange 13 and the fastener is coupled to the body plate 12 so that the burner flange 13 can be fixed to the body plate 12 have. The front end of the main body 10 is open. The main body 10 is provided with a soot inlet port 10P and the soot inlet port 10P is fitted with a port sleeve 10SL. At this time, the port sleeve 10SL is further inserted into the soot inlet port 10P by a predetermined width from the inner end to the outer end. The portion further from the soot inlet port 10P of the main body 10 toward the inner space of the main body 10 may be referred to as an insertion sleeve portion. A flange portion is provided at an outer end of the port sleeve 10SL. A connecting pipe such as a hose of a device generating soot is connected to the flange portion of the port sleeve 10SL. For example, the connection pipe of the soot generating portion of the automobile may be connected to the flange portion of the port sleeve 10SL. Therefore, all the devices generating soot can communicate with the internal space portion of the main body 10 through the soot inlet port 10P of the main body 10. [ So that the soot can be introduced into the internal space of the main body 10.

The ignition part 20 is provided in the main body 10. The ignition portion 20 includes an igniter body pipe 22, an igniter inner body pipe 24, an igniter 26, and a nozzle 28.

The igniter body pipe 22 has a cylindrical shape. In the present invention, the igniter body pipe 22 is formed in a cylindrical shape. The igniter body pipe 22 includes an igniter body cover provided at the base end. The igniter body cover closes the proximal end of the igniter body pipe 22. The igniter body cover is provided at the center thereof with a nozzle coupling hole communicating with an inner surface and an outer surface.

The igniter body pipe 22 is provided with an inlet hole. The inlet hole communicates from the outer circumferential surface to the inner circumferential surface of the igniter body pipe (22). A nipple is provided on the outer circumferential surface of the igniter body pipe 22. The nipple communicates with the hole. A connection pipe such as a hose is connected to the nipple, and a connection pipe is connected to the air supply device. Further, the igniter body pipe 22 is provided with an igniter connection hole.

The igniter inner body pipe (24) is embedded in the igniter body pipe (22). The igniter inner body pipe 24 is formed in a cylindrical shape. In the present invention, the igniter inner body pipe 24 has a cylindrical shape. The igniter inner body pipe 24 includes an inner flange portion and an inner inner body cover.

The inner flange portion is provided at the tip end portion of the igniter inner body pipe 24. The inner flange portion has a structure that extends radially outwardly from the igniter inner body pipe (24). The outer circumferential surface of the inner flange portion is in contact with the outer circumferential surface of the igniter inner body pipe (24). The igniter inner body cover may be coupled to the base end of the igniter inner body pipe 24 by welding or the like.

The igniter inner body cover is provided with an extension sleeve portion at a central portion thereof. The extension sleeve portion protrudes toward the inner surface of the igniter body cover. The outer diameter of the extension sleeve portion is smaller than the outer diameter of the igniter inner body. The extension sleeve portion is coupled to an inner surface of the igniter body cover. Thus, the extension sleeve portion is disposed concentrically with the nozzle 28 engagement hole of the igniter body cover.

The outer circumferential surface of the inner flange portion of the igniter inner body cover portion is in contact with the inner circumferential surface of the igniter body pipe 22 and the extended sleeve portion of the igniter body cover is fitted in the concave groove formed in the igniter body cover of the igniter body pipe 22 Therefore, a space is secured between the inner circumferential surface of the igniter inner body pipe and the outer circumferential surface of the igniter inner body pipe 24.

The space secured between the inner circumferential surface of the igniter body pipe 22 and the outer circumferential surface of the igniter inner body pipe 24 communicates with the inlet hole of the igniter body pipe 22. [ Therefore, the space between the igniter body pipe 22 and the igniter inner body pipe 24 is communicated with the air supply device.

The igniter inner body cover, which is a constitution of the igniter inner body pipe 24, is provided with a plurality of flow holes. The flow hole is disposed around the extension sleeve portion . The flow hole is communicated on both sides of the igniter body cover.

The inner flange portion provided at the tip of the igniter inner body pipe 24 also has a plurality of flow holes. The flow holes also communicate with both sides of the inner flange portion.

The igniter inner body pipe (24) is also provided with an igniter connection hole. The igniter connection hole of the igniter inner body pipe (24) is disposed at a position facing the igniter connection hole of the igniter body pipe (22).

An igniter (26) is provided on the outer circumferential surface of the igniter body pipe (22). The igniter 26 is engaged with the igniter connection hole of the igniter body pipe 22 and the igniter connection hole of the igniter inner body pipe 24 at the same time. The igniter boss 26A is connected to the igniter connection holes at the same time. The inner peripheral surface of the igniter boss 26A is provided with a threaded portion. The outer surface of the igniter 26 itself has a threaded portion. May be connected to the igniter body pipe 22 and the igniter inner body pipe 24. The igniter 26 that has entered the inside of the igniter inner body pipe 24 may cause an ignition spark. The structure for generating the ignition flame of the igniter 26 is a known igniter 26 structure, and thus a further detailed description thereof will be omitted.

The nozzle 28 is coupled to the nozzle holder 28A. The threaded portion of the outer peripheral surface of the nozzle 28 is engaged with the threaded portion of the inner peripheral surface of the nozzle holder 28A. The nozzle 28 protrudes from the tip end of the nozzle holder 28A. The nozzle holder 28A is inserted into the nozzle connection hole formed in the igniter body cover of the igniter body pipe 22. [ Therefore, the nozzle 28 protruding from the tip end of the nozzle holder 28A can be coupled to the igniter body pipe 22. [ At this time, the nozzle 28 communicates with the inner space portion of the igniter inner body pipe 24. [ The nozzle 28 is disposed within the extension sleeve portion of the igniter inner body cover which is the construction of the igniter inner body pipe 24. [ The nozzle holder 28A is provided with an inlet hole. The inflow hole is provided with a nipple. The nipple is connected to the fuel supply device through a connection pipe such as a hose. Therefore, the fuel for ignition can be injected through the inlet hole of the nozzle holder 28A. At this time, a nozzle hole communicated from the proximal end to the tip end is provided in the inside of the nozzle 28, so that the fuel that has entered the inlet hole of the nozzle holder 28A can be discharged to the tip of the nozzle 28 through the nozzle hole.

The pipe cone (30) includes a core pipe portion (32) and a cone portion (34). The pipe cone (30) is embedded in the main body (10). A chamber is secured between the inner circumferential surface of the main body 10 and the outer circumferential surface of the pipe cone 30. The chamber is a passage through which soot can enter.

The base end portion of the core pipe portion 32 is coupled to the inner surface of the body plate 12 provided at the base end portion of the main body 10. The proximal end portion of the core pipe portion 32 may be joined to the inner surface of the body plate 12 by welding or the like. A plurality of soot inlet holes 32H are provided in a peripheral portion adjacent to the base end of the core pipe portion 32. [ And a plurality of soot inlet holes are arranged in the radial direction with respect to the center portion of the core pipe portion 32. That is, the plurality of soot inlet holes are arranged at regular intervals along the circumferential direction of the core pipe portion 32.

The cone portion 34 is integrally connected to the distal end portion of the core pipe portion 32. And the proximal end portion of the cone portion 34 is integrally connected to the distal end portion of the core pipe portion 32. The cone portion (34) has a tapered tube structure in which the diameter increases gradually toward the front end of the main body (10). That is, the cone portion 34 may be a tubular structure having a diameter gradually increasing toward the distal end of the main body 10. At this time, the cone portion 34 is provided with a plurality of soot inlet holes 34H in the row and column directions. The number of the soot inflow holes of the cone portion 34 is larger than the number of the soot inflow holes 32H formed at the base end portion of the core pipe portion 32. [ The base end portion of the core pipe portion 32 is closer to the ignition portion 20 than the cone portion 34 and the number of the soot inlet holes of the core pipe portion 32 is larger than the number of the soot inlet holes 34H of the cone portion 34 It is small. The soot inlet hole adjacent to the base end of the core pipe portion 32 may be referred to as a base soot inlet hole 32H and the soot inlet hole arranged in a plurality of rows and columns in the cone portion 34 may be a front soot inlet hole 34H).

Therefore, the pipe cone 30 is formed in the portion of the base soot inlet hole 32H formed in the portion closer to the ignition portion 20 than the number of the front soot inlet holes 34H formed in the portion farther from the ignition portion 20 Take a structure with fewer numbers.

In the pipe cone 30, the inner diameter of the core pipe portion 32 is constant while the inner diameter of the core pipe portion 32 is gradually increased. The outer peripheral surface on the distal end side of the cone portion 34 is in contact with the inner peripheral surface of the main body 10.

Meanwhile, an inlet pipe may be installed in the inner space of the pipe cone 30. The proximal end of the inlet pipe is coupled to the inner surface of the body plate 12 constituting the main body 10. The base end portion of the inlet pipe can be coupled to the inner surface of the body plate 12 by welding or the like. The inlet pipe is provided with a plurality of inlet holes (42H, 46H) . The front end portion of the inlet pipe is opened toward the front end portion of the main body 10.

The wing plate 50 has a plurality of wings 52 along the circumferential direction, and has a hole facing the wing 52. The wing plate 50 is interposed between the inner circumferential surface of the main body 10 and the outer circumferential surface of the pipe cone 30 so that the inner space of the main body 10 is divided into a rear space portion communicated with the ignition portion 20 and a front space portion It divides.

The wings (52) are provided at regular intervals along the circumferential direction of the wing plate (50). At this time, the wings (52) protrude forward from the front surface of the wing plate (50). Holes facing the wings 52 protruding forward from the front surface of the wing plate 50 are provided. A plurality of wings (52) are formed by machining a plurality of cutouts at predetermined intervals in a base plate of a circular ring-shaped wing plate (50), and the wing (52) So that a plurality of wings 52 are provided on the wing plate 50. The wing 52 is provided with a hole at a portion facing the wing 52 formed by the wing 52. Therefore, the incision line is formed by pulling the metal wing plate 50 base material, and only the wing 52 pieces are pushed toward the base plate of the wing plate 50 by the incision line, so that the backflow of the soot can be prevented The operation of manufacturing the main part of the wing plate 50 is easy, and further, from the viewpoint of productivity and the like.

The wing plate 50 is interposed between the outer peripheral surface of the pipe cone 30 and the inner peripheral surface of the main body 10. The wing plate 50 is in the form of a circular ring plate. The wing plate (50) is disposed in the soot inlet port (10P) region of the main body (10).

A damper (60) is provided on the soot inlet port (10P) of the main body (10). A damper 60 is provided in the port sleeve 10SL coupled to the soot inlet port 10P. The upper end of the damper 60 is coupled to the port sleeve 10SL by the hinge portion and the damper 60 is rotated by the port sleeve 10SL with respect to the hinge portion. The lower end of the damper (60) is in contact with the outer peripheral surface of the pipe cone (30). The lower end of the damper 60 is brought into contact with the outer peripheral surface of the core pipe portion 32 of the pipe cone 30. At this time, since the core pipe portion 32 is in the shape of a circular tube, the lower end of the damper 60 is provided with a circumferential groove, and the circumferential groove of the damper 60 is in contact with the outer circumferential surface of the core pipe portion 32. The lower end of the damper 60 comes into contact with the outer peripheral surface of the core pipe portion 32 of the pipe cone 30 so that the damper 60 tilts toward the tip end portion of the main body 10 when viewed from the side of the main body 10 . When viewed from the side of the port sleeve 10SL provided in the soot inlet port 10P of the main body 10, the damper 60 is arranged to be inclined downwardly. At this time, the damper 60 is disposed in the space between the front end of the pipe cone 30 and the front surface of the wing plate 50. A part of the lower side of the damper 60 is arranged to descend to the space portion between the front end of the pipe cone 30 and the front surface of the wing plate 50. Both ends of the damper 60 are coupled to a port sleeve 10SL provided at a soot inlet port 10P of the main body 10 by a hinge portion and a pipe cone 30 is connected to a lower end portion of the damper 60, And the rear surface of the damper 60 is brought into contact with the wing 52 of the wing plate 50 so that the concave groove provided at the lower end of the damper 60 contacts the pipe cone 30 at a certain distance from the outer circumferential surface. A part of the soot can be introduced into the ignition portion 20 through the space separated between the concave groove at the lower end of the damper 60 and the outer peripheral surface of the pipe cone 30. [

A vent 70 is provided in the main body 10 so as to be disposed in front of the front end of the cone 34 of the pipe cone 30. The vent 70 is provided in the periphery of the vent plate 72 with a plurality of vent wings 74 are provided. Vent holes are provided between adjacent vent wings (74). The flame that is propelled toward the tip of the pipe cone 30 is discharged through the vent hole between the vent wings 74 of the vent 70 to the opening at the tip end side of the main body 10. [

A process for preventing the backflow of soot to the ignition portion 20 according to the present invention will be described as follows.

Soot enters the space inside the main body 10 through the soot inlet port 10P of the main body 10 in the soot generating part such as an automobile connected to the soot inlet port 10P of the main body 10. [ At this time, the soot flows at a constant pressure.

Meanwhile, fuel is injected into the inner pipe of the igniter through the nozzle 28, air of a certain pressure is introduced through the inlet hole provided in the igniter 26 pipe, and the igniter is passed through the through hole of the igniter inner ring plate, While the igniter 26 generates an ignition flame, fuel ignition occurs inside the igniter inner pipe, and a flame is generated due to fuel ignition. The flame is advanced (propelled) toward the front end of the inlet pipe 40 and the main body 10 by the air pressure.

The soot enters through the port sleeve 10SL provided in the soot inlet port 10P of the main body 10. The damper 60 causes the majority of the soot to flow toward the front end side of the pipe cone 30, And the remaining part of the soot is supplied to the wing plate 50 and flows through the flow hole between the wings 52 formed in the wing plate 50 to the side of the pipe cone 30 Soot inflow holes are provided only in a portion adjacent to the base end of the core pipe portion 32 so that only a part of the soot is supplied to the core pipe portion 32 through the soot inflow hole, And flows into the inside of the pipe section 32. Only a part of the soot and a part of the pressure are introduced into the rear space portion defined by the wing plate 50 and most of the remaining soot and pressure are introduced into the front space portion in front of the wing plate 50. [

Subsequently, a part of the soot enters through the inlet hole of the inlet pipe provided inside the inner circumferential surface of the guide ring 54, and the soot is burned by the fuel ignition flame ignited by the igniter 26.

Most of the soot impelled by the damper 60 and the wing plate 50 toward the front end of the main body 10 flows through the soot inlet holes formed in the cone portion 34 of the pipe cone 30, It enters the inside of the inlet pipe through the holes and is burned by the flame.

At this time, only a part of the soot flows into the ignition part 20 by the damper 60 and the wing plate 50, and most of the soot is discharged from the ignition part 20 through the pipe cone 30, The soot is prevented from flowing back to the ignition portion 20 and the flame of the ignition portion 20 is turned off. The soot is suddenly flowed back toward the ignition portion 20 at a high pressure to prevent the ignition portion 20 from being ignited properly. The backflow of the soot to the ignition portion 20 at a high pressure suddenly prevents the ignition portion 20 from being turned off.

The flame generated by combustion of soot in the main body 10, the pipe cone 30 and the inlet pipe flows out to the front end of the main body 10 and is connected to the front end of the main body 10, It can also be used as a flame source.

Therefore, when the soot of automobile or the like flows into the soot inlet port 10P of the main body 10 according to the backflow prevention assembly of the present invention, the respective wings 52 of the wing plate 50 Only a part of the soot flows into the ignition portion 20 through the holes provided in the inlet portion and a part of the introduced soot flows into the space adjacent to the ignition portion 20 through the soot inlet hole of the inlet pipe, 20, the soot is burned by ignition, and most of the soot flowing into the wing plate 50 flows through the holes of the pipe cone 30 and is ignited, There is no possibility that the soot suddenly enters the main body 10 suddenly at a high pressure and flows back to the ignition part 20. Therefore, when the soot combustion operation is not performed properly . Since the high pressure is larger than the air pressure blown by the ignition part 20 when the soot comes in, the soot flows back toward the ignition part 20. In the present invention, the damper 60 and the wing plate 50 prevent the backflow preventing structure So that the soot does not flow back toward the ignition part 20 due to the sudden high pressure. Therefore, unlike the conventional case, the back-flow is carried out toward the ignition part 20 of the soot, .

The plurality of wings 52 protruding forward from the wing plate 50 prevent the soot and pressure that have flowed into the front space portion of the main body 10 from being directly introduced into the ignition portion 20, It is more effective to prevent the ignition portion 20 from being turned off by the backflow of soot and pressure.

When the soot enters the base soot inlet hole 32H formed in the core pipe portion 32 of the pipe cone 30 at a certain pressure, the guide ring 54 once blocks the soot and the pressure to lower the pressure It is possible to prevent the soot from entering into the main body 10 at a rapid pressure because it can be supplied to the pipe connection hole formed in the body plate 12 of the main body 10, It is possible to more reliably prevent the case where the ignition portion 20 is not properly ignited by the back flow of the pressure. The guide ring 54 around the pipe connection hole of the body plate 12 of the main body 10 is also an important constituent contributing to prevention of backflow of soot.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the scope and spirit of the present invention is not limited to these specific embodiments, and that various modifications and changes may be made without departing from the spirit of the present invention. If you have, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

10. Main Body 10P. Soot inlet port
10SL. Port sleeve 12. Body plate
13. Burner flange 14. Flange
20. Ignition part 22. Igniter body pipe
24. Igniter Inner Body Pipe 26. Igniter
28. Nozzle 28A. Nozzle holder
30. Pipe cone 32. Core pipe section
32H. Base soot inflow hole 34. Convex
34H. Front soot inflow hole 40. Inlet pipe
42H. Inlet Hole 46. Large Diameter Inlet Pipe
46H. Inlet Hole 50. Wing Plate
52. Wing 60. Damper
70. Bent 72. Vent plate
74. Bent Wing

Claims

An ignition part 20 provided at a base end of the main body 10 having a space inside thereof;
A pipe cone (30) built in the space portion of the main body (10) and having a soot inlet hole communicated with the inner and outer peripheral surfaces;
And has a plurality of wings (52) along the circumferential direction and has a hole facing the wing (52) and is interposed between an inner circumferential surface of the main body (10) and an outer circumferential surface of the pipe cone (30) And a wing plate (50) for partitioning an inner space portion of the inner space (10) into a rear space portion and a front space portion communicated with the ignition portion (20)
And a damper 60 provided at one side soot inlet port 10P of the main body 10 and disposed in a space between a front end of the pipe cone 30 and a front surface of the wing plate 50 Respectively,
An upper end of the damper 60 is coupled to a port sleeve 10SL provided in the soot inlet port 10P of the main body 10 by a hinge portion and a lower end portion of the damper 60 is connected to the pipe cone 30), and a rear surface of the damper (60) is in contact with the wing (52) of the wing plate (50).

delete

The method according to claim 1,
The pipe cone (30)
A core pipe portion 32 having a base end coupled to an inner surface of a body plate 12 provided at a base end of the main body 10;
And a cone portion (34) connected to a distal end portion of the core pipe portion (32)
A plurality of base soot inlet holes 32H are formed in the core pipe portion 32,
A plurality of front soot inlet holes 34H are formed in the cone portion 34,
Wherein the number of the base soot inlet holes (32H) is smaller than the number of the front soot inlet holes (34H).

5. The method of claim 4,
The core pipe portion 32 is supported by the main body 10 and disposed inside the core pipe portion 32 of the pipe cone 30 so as to surround the pipe coupling hole formed in the body plate 12, Further comprising: a guide ring (54) disposed at a position facing the base soot inlet hole (32H) of the backflow preventing member (32).

6. The method of claim 5,
The outer circumferential surface of the guide ring 54 is spaced a predetermined distance from the inner circumferential surface of the core pipe portion 32 and the base soot inlet hole 32H faces the inner circumferential surface of the guide ring 54, Wherein the backflow preventing assembly is provided on the backflow prevention device.

The method according to claim 1,
The wings 52 are provided at regular intervals along the circumferential direction of the wing plate 50. The wings 52 protrude forward from the front surface of the wing plate 50, And a hole is provided in the backflow prevention assembly.