JPS5882012A - Spark arresting device for exhaust gas - Google Patents

Abstract

PURPOSE:To improve the rate of removal of carbon, and to ameliorate durability by mounting an imperforate cap, an imperforate partition and a wire net in the spark arrester device for exhaust gas. CONSTITUTION:Exhaust gas at a high temperature, which is discharged at high pressure from the upper stream side of an exhaust pipe 10 and contains carbon powder, intrudes from the introducing port 5a of an external cylinder body 5 as arrows, collides with the cap 1a of an internal cylinder body 1 while being separated and deflected along the inclined plane of the cap 1a, and is induced to the outer circumferential side of the cylinder body 1. Exhaust gas induced to the outside collides with the partition 4 of an end section while being deflected, and passes through the wire net 2 and through holes 16 and flows into the cylinder body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an exhaust gas spark arrester device. More specifically, the invention relates to a spark arrester device that efficiently captures heated carbon powder contained in the exhaust gas before the exhaust gas is discharged from the exhaust pipe into a large exhaust pipe. .

Gas emitted from small engines installed in relatively small vehicles such as motorcycles contains a considerable amount of carbon powder. When this carbon powder is discharged from the exhaust pipe, it is heated to a considerably high temperature, so especially in heavy vehicles that are driven through the forest, this high-temperature carbon powder can cause wildfires. It may also cause it to occur. For this reason, in countries such as the United States, which have large forests, vehicles drive through forests! It is mandatory to install a spark arrester at the end of the IF tube of both engines to capture carbon in the exhaust gas in advance and prevent it from being emitted into the engine.

One of the conventional spark arresters has an mw on the head side of a double horizontally horizontal pipe that has a screw blade that diffuses exhaust gas radially in the outer circumferential direction. The centrifugal force based on the spiral waves caused by this spiral wave causes the carbon to scatter to the outer circumference, and
It is designed so that only the gas is exhausted to the outside through the inner pipe. However, in order to increase the carbon removal efficiency of this device, it is necessary to increase the outer diameter of the pipe of the main body, which causes the problem that the device cannot be made compact. In addition, as another spark arrester, there is a wire mesh installed on the front side of the main body that uses WA to directly catch the exhaust gas, and removes carbon through this wire mesh. . However, in the case of this spark arrester as well, it is necessary to use gold 11w111 as the kennel in order to increase the carbon removal efficiency, so the overall diameter has to be increased, which does not contribute enough to making the device more compact. There is a gap between not doing so. Moreover, II
Since the wire mesh of IIl does not directly receive high-temperature, high-pressure exhaust gas, there is also the problem that a highly durable and expensive material must be used as the wire mesh material.

The purpose of the present invention is to eliminate the drawbacks of the prior art as described above, and to improve the carbon removal efficiency even if the overall cylinder diameter is made small. An object of the present invention is to provide a spark arrester device.

The spark arrester device for a gas-filled gas according to the present invention which achieves the above object has a non-porous structure having an integral end portion provided with a large number of through holes in the outer circumferential wall, and an inclined surface for causing the W gas to flow toward the outer circumferential side. In addition to providing a cap, the other end of the cylindrical body is in an open state, and the outer periphery of this open end receives the wandering gas that has been made to flow freely, and the inside of the cylindrical body through the through hole 1. A non-porous vertisilane is provided to allow a normal flow to flow into the body, and the above-mentioned number of through-holes are formed on the outer circumferential surface of the integral body.
The special feature is that it is equipped with a wire mesh.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically explained below using embodiments shown in the drawings.

FIG. 1 is a longitudinal sectional view of a spark arrester device according to an embodiment of the present invention, and FIGS. 2 to 4 show tent members used in the device. In these figures, reference numeral 1 indicates an integral body located on the inside, and the end of this inner cylinder 1 located on the performance side of the exhaust gas is 1F.
Il! Cap 1a having a conical cane slope
It is shaped like this, and a part of the house located below the stray gas is left open. In addition, this integral body 1 is provided with a larger number of through holes 1b by punching, and a plurality of holes 111b are formed on the outer periphery of the cylindrical body.
It is refined with ~24 mesh S degree gold 112. A support bracket 3 is fixed to the cap 1a side in front of the cylindrical body 1, and a verticillane 4 is fixed to the outer peripheral surface of the rear part concentrically with the body 1.

On the other hand, 10 is the exhaust pipe of the inner muse, and this wandering pipe 1
A 7% housing 6 is fixed to a part of the inside of the gas discharge side of the housing 6, and another integral body 5 is fixed to this housing 6. Inside this cylindrical body 5, the integral body 1 having the above-mentioned structure is removably inserted from the rear by moving the support bracket 3 and the outer l1litIl of the verticillane 5, and is fixed therein. ing. The outer cylindrical body 5 has a through hole 5b in its peripheral wall.
) (4) Penetration? L5b passes through the inside and outside of the unit 5 and connects to the housing 6.
It communicates with the sound absorbing material 7 housed inside.

Further, the front end of the outer cylinder 5 has a diameter of 1 mm and serves as a gas inlet 5a.

゛In the horizontal FII* spark arrester device as described above, the high-temperature exhaust gas containing carbon powder discharged at high pressure from the stage side of the exhaust pipe 10 is directed to the inlet of the outer cylinder 5 as shown by the arrow. 5a, collides with the cap 1a of the inner unit 1, is immersed along the slope of the cap 1a, and is guided toward the outer circumferential side of the unit 1. The wandering gas guided to the outside collides with the vertex 4 at the end and is deflected, passes through the wire mesh 2 and the through hole 1b, and passes through the integral part 1.
flows inside. In this case, the carbon powder contained in the exhaust gas is more durable than the gas, so its inertia forces the carbon powder into the recess that is abraded by the walls of Vertisilane 4 and the inner and outer integral 1.5. 1II! It is deposited as shown by C in l.

Furthermore, the carbon remaining in the W gas even after colliding with Vertisilane 4 is almost completely separated by the gold 112 when the II gas passes through the wire mesh 2 (6). It turns out. In addition, since gold 1112 is curved along the outer circumferential side of the cylinder 1, it is long in the axial direction. Therefore, the cylinder diameter can be freely selected depending on the type of internal combustion engine, and it is also possible to obtain a high carbon removal rate of 80% or more.

In addition, the wire mesh 2 does not directly receive the stray gas from the exhaust pipe 1 (the gas is stopped at the non-porous cap 1a, and after the force has been relaxed, it is further tilted in the direction). The force of the wandering gas acting on the wire mesh 2 is much smaller than that when it acts directly and vertically. Moreover, since the gold 1lI12 is supported by the solid piece 1 from its back side, its durability can be significantly improved without using expensive metal materials.

(7) Further, according to the above-described embodiment, the inner unit 1 is configured to be detachable from the outer unit 5, and can be easily inserted and removed from the rear of the exhaust pipe 10, so that it can be placed in a fixed position. It has the advantage that *S of carbon can be performed extremely easily when carbon is deposited.

5 to 9 show embodiments of the present invention.

In this embodiment, instead of the bracket 3 fixed to the front part of the inner unit 1 in the above embodiment, a bracket 8 having a plurality of torsion wings lea and openings 8b arranged in the circumferential direction is provided.

The number is III#!, which is almost the same as the above-mentioned embodiment. I'm in the middle of the day.

In this device, of course, the same effect as in the above-mentioned practical example is achieved, but in addition, the stray gas that collides with the cap 1a of the integral unit 1 and drifts toward the outer circumference is turned by the torsion blade 18a of the bracket 8, resulting in rotational force. As a result, the carbon powder contained in the exhaust gas is forced by centrifugal force in the radial direction toward the inner wall of the outer unit 5 (8), as shown by C in Figure 5.
Sea urchins accumulate more on the outer periphery. That is,
As a result of the turning hole and the carbon powder being forced toward the outer periphery as described above, the amount of carbon passing through the gold 112 is smaller than in the above example. First, the excellent effect of reducing the occurrence of clogging of the gold 112 can be obtained.

In addition, in each of the above-mentioned embodiments, a through hole is formed in the integral part 1 that supports the wire mesh 2. L1a does not necessarily have to be circular, and may have a non-circular shape such as another square shape or a slit-shaped cane if necessary.

As described above, the exhaust gas spark arrester device according to the present invention includes a non-porous cap having an integral end portion provided with a perforation on the outer periphery and an inclined surface for causing the exhaust gas to flow toward the outer periphery. 9) At the same time, a part of the other side of the cylinder is made into a soft opening, and the outer periphery of the opening side end receives the exhausted exhaust gas and passes through the through hole. A non-porous particidine is provided to allow the flow to flow inside the body, and the outer periphery of the cylinder body is further provided with a non-porous particidine that allows the flow to flow inside the body. Since the structure is provided with a wire mesh that involves a large number of penetrations, even if the overall diameter of the cylinder is made small and the cylinder diameter is made compact, the carbon removal efficiency is increased and fogging is achieved. Therefore, it becomes easy to arbitrarily select the diameter according to the inner tIIIWA 4111 to be used for destruction. Furthermore, since the wire mesh is a horizontal support supported by a cylindrical body, it is possible to significantly improve the durability of the wire mesh without using an expensive material.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of an apparatus according to an embodiment of the present invention;
The figure is a longitudinal sectional view of the inner enclosure at the 111M position, FIG. 3 is a sectional view taken along arrow 1-1 in FIG. 2, and FIG. I of l
It is a sectional view of I/-II/ arrow direction. FIG. 5 is a longitudinal sectional view of an apparatus according to another embodiment of the present invention;
Fig. 6 is a longitudinal cross-sectional view of the inner picture body in the same device, Fig. 7 is a cross-sectional view taken along the arrow ■-■ in Fig. 6, and Fig. 8 is a cross-sectional view taken along the arrow ■-■ in Fig. 7.
9(10) is a sectional view taken along the line IX-IK in FIG. 6. 1.Inner cylinder % la..Cap, 1b..Through hole, 2..Wire mesh, 4..Partsin, 5..Outer body, 6..Housing, 18..L tube. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita (11)

Claims (1)

[Claims] At the end of the cylindrical body, which has a large number of penetrations 1 on the outer periphery, an unmarked cap with an ink slope is provided to allow the exhaust gas to flow toward the outer periphery, and the other end of the cylindrical body is opened and argue,
A cage-less partition is provided on the outer periphery of the opening side end, which is configured to stop receiving the above-mentioned wandering gas and also to allow it to flow into the cabinet via the above-mentioned pipe. 4. A spark arrester device for four-gas gas, characterized in that the outer peripheral surface of the body is provided with a wire mesh that covers the cage.