JP6321380B2 - Muffler - Google Patents

Description

  The present invention relates to a muffler.

A conventional muffler 100 includes a shell 101, an inlet pipe 102, an outlet pipe 103, and a separator 104 as shown in FIGS.
The inlet pipe 102 and the outlet pipe 103 are inserted into the shell 101 from both axial ends of the shell 101, and their tips are inserted into and supported by the through holes 104 a and 104 b of the separator 104 installed in the shell 101. Has been.

  In the case of the muffler 100 of FIG. 12, a single separator 104 is provided. In order to support the inlet pipe 102 and the tip of the outlet pipe 103, this separator 104 is formed with through holes 104a and 104b through which these pipes pass. Yes.

  In the case of the muffler 100 of FIG. 13, two separators 104 are provided, and these separators 104 are formed with an inlet pipe 102 and through holes 104 a and 104 b penetrating the outlet pipe 103, respectively.

The separator 104 is formed with flanges 106 and 107 at the outer edge and the edges of the through holes 104a and 104b.
The separator 104 is welded to the shell 101 or the pipes 102 and 103 through the flanges 106 and 107.

By the way, in the muffler 100, a plurality of chambers are formed in the shell 101 by the separator 104.
Then, in the room where the tip of the inlet pipe 102 is located, the exhaust gas sent from the upstream side expands when discharged from the inlet pipe 102 and is cooled, thereby generating condensed water, and the shell 101. Accumulate inside.

  However, in the conventional muffler 100, the through-hole 104b is formed in the separator 104, and the outlet pipe 103 is inserted into the separator 104. Therefore, the outlet pipe 103 floats from the bottom surface of the shell 101.

Therefore, in order to drain the condensed water through the outlet pipe 103, it is necessary to provide a dedicated structure for draining the condensed water.
Further, in the muffler 100, it is necessary to provide flanges 106 and 107 for welding around the outer edge portion of the separator 104 and around each of the through holes 104a and 104b.

  Therefore, when one separator 104 is provided, it is necessary to provide three flanges 106 and 107 on the separator 104. When two separators 104 are provided, each separator 104 also has two flanges 106 for each separator. 107 need to be provided, and the man-hour is increased accordingly.

  Therefore, an object of the present invention is to provide a muffler capable of draining condensed water without providing a dedicated structure for draining condensed water, and having a reduced man-hour.

To achieve the above object, the present onset Ming, a shell (2), a pipe (4), provided with a separator (5) for partitioning the space within the shell, the separator was installed in the shell In some cases, a recess (6) is formed between the shell and an insertion space (61) through which the pipe passes, and a flange (51) is formed on an outer edge of the separator including the recess. Further, at least a portion that passes through the insertion space is disposed in contact with an inner wall surface of the shell and a flange formed in the recess.

According to this, since the pipe is disposed in contact with the inner wall surface of the shell, the condensed water is discharged through the pipe.
Therefore, the muffler of the present invention can drain the condensed water without providing a dedicated structure for draining the condensed water.

Further, according to this, since the pipe is disposed between the separator and the shell, there is no need for a through hole through which the pipe passes, and it is not necessary to provide a flange in the through hole.
Therefore, since the muffler of the present invention can reduce at least one manufacturing process for providing a flange in the through hole, the number of steps can be reduced as compared with the conventional muffler.

  By the way, if the shell is divided into multiple rooms with separators, and the outlet pipe is located in one room and the outlet pipe is located in the other room, the exhaust is passed between each room. It is necessary to provide a through hole, and it is necessary to guide the condensed water to the inlet of the outlet pipe.

Therefore , in the muffler of the present invention , the concave portion has a size capable of forming an insertion space having an area larger than the cross-sectional area of the pipe.
This is because the vent hole (62) through which the exhaust passes is formed in the insertion space formed by the recess.

On the other hand, condensed water is usually generated in the room where the outlet of the inlet pipe is located.
However, if it does in this way, exhaust_gas | exhaustion will flow from the room in which the exit of an inlet pipe is located through the through-hole to the room in which the inlet of an outlet pipe is located.

  Then, it is guided by the flow of exhaust gas, and the condensed water flows from the room where the outlet of the inlet pipe is located to the room where the inlet of the outlet pipe is located, and the condensed water is guided to the inlet of the outlet pipe.

Therefore , in the muffler of the present invention , the condensed water can be efficiently drained through the outlet pipe.
Next, the muffler usually includes an inlet pipe and an outlet pipe as pipes. Specifically, the muffler has the following configuration as an example. However, it is not restricted to these.

As Ma hula present invention, through an outlet pipe into the insertion space, it may be passed through the inlet pipe into the through holes formed in the separator.
In this case, a flange may be formed at the edge of the through hole.

  Even with this configuration, a flange is provided in the through-hole through which each pipe passes, and a flange is provided in one through-hole, specifically, the through-hole through which the outlet pipe passes, compared to the case where a flange is provided on the outer edge of the separator. Since it is not necessary, man-hours can be reduced.

As Ma hula present invention, comprises two separators, forming a through hole in one separator, through the inlet pipe into the through hole, and forming recesses in the other separator, the recess is formed An outlet pipe may be passed through the insertion space.

In this case, a flange may be formed at the edge of the through hole.
As Ma hula present invention, two recesses provided in the separator, through the inlet pipe into the insertion space one recess is formed, the insertion space formed by the other recess may have a structure through an outlet pipe .

Next, the pipe may be arranged such that the vicinity of the end portion contacts the inner wall surface of at least the shell, but as in the Ma hula present invention, the entire portion located in the shell of the pipe shell You may make it arrange | position in contact with the inner wall surface of this.

Then, to drain the condensed water, as Ma hula present invention, it is preferable to arrange the pipes in contact with the inner wall surface of the bottom of the shell, but is not limited to this.
By the way, some outlet pipes have a structure in which the end portion gradually expands in a trumpet shape from the inside of the pipe toward the opening of the end portion of the pipe. This is to improve the suction performance.

In this respect, since the boundary portion between the separator main body portion and the flange forming portion is bent in a curved shape, it is arranged so that the end portion of the pipe is located in the insertion space like the muffler of the present invention. When the bent portion is viewed from the opening of the pipe, the structure is similar to the structure in which the end portion of the outlet pipe is formed in a trumpet shape.

Therefore, when configured as calls between hula, even without forming the end of the outlet pipe like a trumpet, it is possible to improve the suction performance of the gas.
Next , like the muffler of the present invention, a portion where the pipe contacts the shell may be formed in a shape along the inner wall surface of the shell.

  In this case, compared with the case where the pipe and the shell are merely brought into contact with each other, the opening area in the portion close to the shell can be widened, so that the condensed water can be efficiently discharged into the outlet pipe. .

Note that , as in the muffler of the present invention , the pipe may be disposed such that at least a portion that passes through the insertion space is in contact with the inner wall surface of the shell indirectly via the patch (40). Of course, the pipe may be brought into direct contact with the inner wall surface of the shell and the flange.

  Incidentally, the reference numerals in parentheses for each of the above means are examples showing the correspondence with the specific means described in the embodiments described later, and the present invention is indicated by the reference numerals in the parentheses of the above respective means. It is not limited to specific means.

It is explanatory drawing for demonstrating the internal structure of the muffler of 1st Embodiment, and is sectional drawing cut | disconnected by the surface perpendicular | vertical to the up-down direction which passes along the central axis of a shell. It is explanatory drawing of the separator used with the muffler of 1st Embodiment, (a) (b) is the front view of the separator which removed the lid 21 from the separator installed in the shell, and was seen from the lid 21 side (C) and (d) are perspective views of the separator. (A) is a figure which shows a mode that the outlet pipe was removed, (b) is a figure which shows a mode that the outlet pipe was attached. (C) is the figure seen from the lid body 21 side, (d) is the figure seen from the lid body 22 side. It is explanatory drawing for demonstrating the internal structure of the muffler of 2nd Embodiment, and is sectional drawing cut | disconnected by the surface perpendicular | vertical to the up-down direction which passes along the central axis of a shell. It is explanatory drawing of the separator used with the muffler of 2nd Embodiment, (a) is a front view of the separator which removed the lid 21 from the separator installed in the shell, and was seen from the lid 21 side, (B) and (c) are perspective views of the separator. (B) is the figure seen from the lid body 21 side, (c) is the figure seen from the lid body 22 side. It is explanatory drawing for demonstrating the internal structure of the muffler of 3rd Embodiment, and is sectional drawing cut | disconnected by the surface perpendicular | vertical to the up-down direction which passes along the central axis of a shell. It is explanatory drawing of the separator used with the muffler of 3rd Embodiment, (a) is the front view of the separator which removed the lid 21 from the separator installed in the shell, and was seen from the lid 21 side, (B) and (c) are perspective views of the separator. (B) is the figure seen from the lid body 21 side, (c) is the figure seen from the lid body 22 side. It is explanatory drawing for demonstrating the internal structure of the muffler of other embodiment, and is sectional drawing cut | disconnected by the surface perpendicular | vertical to the up-down direction which passes along the central axis of a shell. It is explanatory drawing for demonstrating the internal structure of the muffler of other embodiment, and is sectional drawing cut | disconnected by the surface perpendicular | vertical to the up-down direction which passes along the central axis of a shell. It is explanatory drawing of the muffler of other embodiment, and is the front view of the separator which removed the lid 21 from the separator installed in the shell, and was seen from the lid 21 side. It is the perspective view of the separator of other embodiment, (a) is the figure seen from the lid body 21 side, (b) is the figure seen from the lid body 22 side. It is explanatory drawing for demonstrating the internal structure of the muffler of other embodiment, (a) is sectional drawing cut | disconnected by the surface perpendicular | vertical to the up-down direction which passes along the central axis of a shell, (b) is one side. FIG. It is explanatory drawing of the conventional muffler, (a) is sectional drawing cut | disconnected by the surface perpendicular | vertical to the up-down direction which passes along the center axis | shaft of a shell, (b) is a front view of the separator installed in the shell. . It is explanatory drawing of the conventional muffler, and is sectional drawing cut | disconnected by the surface perpendicular | vertical to the up-down direction which passes along the central axis of a shell.

(First embodiment)
A first embodiment of the present invention will be described.
In the following description of the first embodiment, the first embodiment will be referred to as this embodiment.

As shown in FIG. 1, the muffler 1 of the present embodiment includes a shell 2, an inlet pipe 3, an outlet pipe 4, and a separator 5.
The shell 2 includes a main body 20 formed in a cylindrical shape, and a pair of lid bodies 21 and 22 that close openings at both axial ends of the main body.

Among these, the lid 21 is formed with a hole 21 a having a size that allows the inlet pipe 3 to pass therethrough.
The hole 21 a is located above the center of the lid 21 and is provided between the center of the lid 21 and the edge of the lid 21.

  The hole 21a is formed by burring, and in this process, a flange 21b that faces outward when the lid 21 is attached to the main body 20 is formed so as to stand upright from the edge of the hole 21a. Is done.

  When the inlet pipe 3 is passed through the hole portion 21a of the lid body 21, the flange 21b comes into contact with the outer surface of the inlet pipe 3, so that the inlet pipe 3 is welded to the lid body 21 and eventually to the shell 2 through the flange 21b.

Further, a flange 21c is formed on the edge of the lid 21 so as to stand in the opposite direction to the flange 21b.
The lid body 21 is attached to the main body 20 by inserting the main body 20 inside the flange 21c, and the lid body 21 is welded to the main body 20 via the flange 21c.

On the other hand, a hole 22 a having a size that allows the outlet pipe 4 to pass through is formed in the lid 22.
The hole 22 a is provided at a position below the center of the lid 22 and in contact with the edge of the lid 22.

  The hole 22a is formed by burring, and in this process, a flange 22b that faces outward when the lid 22 is attached to the main body 20 is formed so as to stand from the edge of the hole 22a. Is done.

  When the outlet pipe 4 is passed through the hole 22a of the lid body 22, the flange 22b comes into contact with the outer surface of the outlet pipe 4 and is welded to the lid body 22 and eventually the shell 2 through the flange 22b.

Further, a flange 22c is formed on the edge of the lid 22 so as to stand in the opposite direction to the flange 22b.
The lid body 22 is attached to the main body 20 by inserting the main body 20 inside the flange 22c, and the lid body 22 is welded to the main body 20 via the flange 22c.

  Next, the inlet pipe 3 is a pipe for guiding the exhaust gas discharged from the fuel engine into the muffler 1 from the fuel engine side, and is formed in a cylindrical shape, and its downstream end is located in the shell 2. It is attached to the shell 2 as follows.

  This inlet pipe 3 is attached to the shell 2 so that the outlet at the downstream end opens in the room B on the downstream side (the lid 22 side) when the inside of the shell 2 is divided into a plurality of rooms by the separator. .

  On the other hand, the outlet pipe 4 is a pipe for guiding the exhaust gas from the muffler 1 to the outside, is formed in a cylindrical shape, and is attached to the shell 2 so that its upstream end is located in the shell 2.

  The outlet pipe 4 is attached to the shell 2 so that the upstream end entrance opens in the upstream room A (the lid 21 side) when the inside of the shell 2 is divided into a plurality of rooms by separators.

Further, the outlet pipe 4 is arranged such that a portion located in the shell 2 is in contact with the inner wall surface of the lowermost portion of the shell 2 (lowermost portion of the main body 20).
Next, as shown in FIG. 2, the separator 5 includes a main body 50 formed in a substantially disc shape, and a flange 51 formed on an outer edge portion of the main body 50. Among these, the flange 51 is formed in a shape in which the outer edge portion of the disk is folded vertically with respect to the plate surface of the main body 50.

The main body 50 has a through hole 50a formed above the disc center α and a recess 6 formed below the disc center α.
The through hole 50a is located between the center of the disk and the outer edge of the main body 50, and the recess 6 has a shape in which the outer edge of the main body 50 is recessed toward the center of the disk.

Further, since this through hole 50a is formed by burring, a flange 52 standing from the end is formed at the end of the through hole 50a.
The flange 52 is bent in the same direction as the flange 51 with respect to the plate surface of the main body 50.

When the separator 5 is installed in the shell 2 , as shown in FIG. 1, an upstream room A on the lid body 21 side and a downstream room B on the lid body 22 side are formed in the shell 2 .
Moreover, when installing this separator 5 in the shell 2 , as shown to Fig.2 (a), it installs so that the recessed part 6 may be located below. Then, the recessed part 6 forms the insertion space 61 for letting the outlet pipe 4 pass between the lowermost inner wall surface of the main body 20 of the shell 2.

  The recess 6 is formed in such a size as to form an insertion space 61 having an area larger than the cross-sectional area of the outlet pipe 4 when the separator 5 is installed in the shell 2 in this way.

Therefore, when this separator 5 is installed in the shell 2 and the outlet pipe 4 is passed through the insertion space 61, vent holes 62 are formed on both sides of the outlet pipe 4 as shown in FIG.

Next, the manufacturing and assembly process of the muffler 1 will be described.
The main body 20, the inlet pipe 3, and the outlet pipe 4 of the shell 2 are manufactured by rolling a plate material, and are formed in a cylindrical shape. However, these manufactures are not limited to the method of rolling a plate material.

  As shown in FIG. 1, the lids 21 and 22 are formed into holes 21a and 22a by bending the edge of a disk-shaped member into flanges 21c and 22c and subjecting the member to burring. And flanges 21b and 22b are formed.

  As shown in FIG. 2, the separator 5 forms a through hole 50a by bending the edge of a substantially disk-shaped member whose outer peripheral portion is recessed at one place to form a flange 51 and burring the member. A flange 52 is formed.

The separator 5 is installed in the main body 20 of the shell 2. The installation position is near the center in the axial direction of the shell 2. However, the installation position is not limited to the vicinity of the center.
Further, the lid body 21 and the lid body 22 are put on the openings so as to close the openings of the main body 20 of the shell 2.

  The lids 21 and 22 and the separator 5 are fixed by welding to the main body 20 of the shell 2 via the flanges 21c, 22c and 51. This fixing is not limited to welding.

  Next, the inlet pipe 3 is passed through the hole 21a of the lid 21 and the through hole 50a of the separator 5, and is fixed to the lid 21 and the separator 5 by welding via flanges 21b and 52. This fixing is not limited to welding.

  The outlet pipe 4 is also passed through the insertion space 61 formed by the hole 22a of the lid 22 and the recess 6 of the separator 5, and is fixed to the lid 22 and the separator 5 by welding via flanges 22b and 51. . This fixing is not limited to welding.

  When the muffler 1 is assembled in this manner, the separator 5 forms a room A on the lid body 21 side, the inlet pipe 4 opens at the room A, and the chamber B is formed on the lid body 22 side. The exit opens at room B.

  In the muffler 1 assembled in this way, the exhaust gas is introduced into the shell 2 by the inlet pipe 3 and discharged into the room B. At this time, in the room B, the exhaust gas expands, and the exhaust gas is cooled to generate condensed water, which accumulates in the lower part of the room B.

Then, the exhaust gas is guided from the room B to the room A through the vent hole 62. At this time, the condensed water also flows from the room B to the room A by being guided by the flow of the exhaust gas.
Next, the exhaust gas is discharged from the room B through the outlet pipe 4 to the outside. At this time, since the outlet pipe 4 is in contact with the lowermost inner wall surface of the shell 2, the condensed water is also led to the exhaust gas and discharged from the outlet pipe 4 to the outside.

Using the muffler 1 of the present embodiment described above has the following effects.
In the muffler 1 of the present embodiment, since the outlet pipe 4 is disposed in contact with the inner wall surface at the bottom of the shell 2, the condensed water is discharged through the pipe.

Therefore, the muffler 1 of this embodiment can drain the condensed water without providing a dedicated structure for draining the condensed water.
Further, since the muffler 1 of the present embodiment is arranged with the outlet pipe 4 being sandwiched between the edge of the separator 5 and the shell, there is no need for a through-hole through which the outlet pipe 4 passes, and the through-hole is not formed in the through-hole. There is no need to provide a flange.

Therefore, since the muffler of this embodiment can reduce at least one manufacturing process for providing the flange, the man-hour can be reduced as compared with the conventional muffler.
Next, in the present embodiment, the recess 6 is sized such that the vent hole 62 through which the exhaust gas passes is formed even if the outlet pipe 4 is passed through the insertion space 61.

The exhaust gas is allowed to flow between the rooms through the vent hole 62, and the condensed water also flows from the room B to the room A by the flow of the exhaust gas.
Therefore, the muffler 1 of the present embodiment can efficiently drain the condensed water through the outlet pipe 4.
(Second Embodiment)
A second embodiment of the present invention will be described.

In the following description, the second embodiment will be referred to as this embodiment and the number of steps will be described.
Moreover, only a different point from 1st Embodiment is demonstrated, and the same code | symbol is attached | subjected and demonstrated about the same structure as the structure of 1st Embodiment.

The muffler 1 of the present embodiment is different from the first embodiment in that it includes two separators 5 as shown in FIG.
Of these separators 5, those on the lid body 21 side are hereinafter referred to as separators 5 a and those on the lid body 22 side are referred to as separators 5 b hereinafter.

  When the separators 5a and 5b are installed in the shell 2, the inside of the shell is divided into three rooms. Among these, the room on the lid 21 side is called room A, the middle room is called room B, and the room on the lid 22 side is called room C.

The separator 5a is formed with a through hole 50a through which the inlet pipe 3 formed in the separator 5 of the first embodiment can be inserted, but the recess 6 is not formed.
As shown in FIG. 4, the separator 5 b is formed with the recess 6, but not the through hole 50 a, contrary to the separator 5 a.

When assembling the muffler 1 of the present embodiment, the ends of the inlet pipe 3 and the outlet pipe 4 are assembled so as to open in the room B as shown in FIG.
The inlet pipe 3 is welded to the separator 5a, and the outlet pipe 4 is welded to the separator 5b.

The separators 5a and 5b are welded to the inner wall surface of the shell 2 inside the shell 2, respectively.
In the present embodiment, in the separator 5b, it is not necessary to provide a through hole for an outlet pipe, and it is not necessary to provide a flange for the through hole, so that the number of steps can be reduced.

The effect of this embodiment is the same as that of the first embodiment.
(Third embodiment)
A third embodiment of the present invention will be described.

In the following description, the third embodiment will be referred to as this embodiment.
Moreover, only a different point from 1st Embodiment is demonstrated, and the same code | symbol is attached | subjected and demonstrated about the same structure as the structure of 1st Embodiment.

As shown in FIG. 5, the muffler 1 of this embodiment is arranged so that the inlet pipe 3 is also in contact with the inner wall of the shell 2, but this is different from the first embodiment.
For this reason, the separator 5 used in this embodiment does not include the through hole 50a through which the inlet pipe 3 is inserted, but includes two recesses 6 instead.

  In this embodiment, the inlet pipe 3 is disposed in contact with the inner wall surface on the upper side of the shell 2, and the recesses 6 provided in the separator 5 are also provided in two vertically, as shown in FIG. 6. Yes.

Similarly to the lid 22, the lid 21 is provided with a hole 21 a through which the outlet pipe 4 is inserted at a position in contact with the edge.
In the first embodiment, the through hole 50a is provided in the separator 5 and the flange 52 is provided in the through hole 50a. However, in the present embodiment, it is not necessary to provide these.

Therefore, the muffler 1 of the present embodiment can further reduce the number of man-hours compared to the first embodiment.
Moreover, in 1st Embodiment, although the outlet pipe 4 and the separator 5 were welded via the flange 52 of the through-hole 50a, the muffler 1 of this embodiment provided the outlet pipe 4 in the outer edge part of the separator 5. FIG. The point which welds with the flange 51 differs.
[Other Embodiments]
Although the embodiment has been described above, it is needless to say that the invention described in the claims is not limited to the above embodiment and can take various forms.

(1) The muffler 1 described in the above embodiment is merely an example, and the present invention is not limited to this.
(2) In the above embodiment, a pipe that is straight in the axial direction is used as the outlet pipe 4. However, as shown in FIG. 7, a pipe bent into a shape having a step is used, and a step portion on the end side is used. You may make it contact | abut on the inner wall face of the shell 2. FIG.

In this case, the hole 22a provided in the lid 22 is provided between the edge of the lid 22 and the center of the lid.
(3) In the above embodiment, the outlet pipe 4 is disposed in a state of penetrating the insertion space 61 provided between the recess 6 and the shell 2, but as shown in FIG. Further, it may be arranged so as to be located in the insertion space 61.

Generally, the end portion of the outlet pipe often has a structure in which the diameter gradually increases in a trumpet shape from the inside of the pipe toward the opening of the end portion of the pipe in order to improve gas suction performance.
However, in the said embodiment, the part by which the flange 51 was bent with respect to the main body 50 is formed in the shape of a curve, Therefore, the insertion space 61 is formed in the shape which diameter-expands gradually toward the room A side. .

  Accordingly, when the outlet pipe 4 is disposed so that the end portion thereof is positioned in the insertion space 61, the gradually expanding portion of the insertion space 61 functions in the same manner as the structure in which the diameter gradually increases in the above-described trumpet shape.

Therefore, the gas suction performance can be improved without forming the end portion of the outlet pipe 4 in a trumpet shape.
(4) In the above embodiment, a pipe formed in a cylindrical shape is used as the outlet pipe 4. However, as shown in FIG. 9, the portion of the outlet pipe 4 that is in contact with the shell 2 extends along the inner wall surface of the shell 2. It may be formed in a different shape.

  In this way, compared with the case where the outlet pipe 4 is simply brought into contact with the shell 2, the opening area near the shell can be increased, so that condensed water can be efficiently discharged into the outlet pipe. It becomes.

  (5) In the above embodiment, the example in which the flanges 51 and 52 provided on the separator 5 are processed so as to face the same direction has been described. However, as shown in FIG. Thus, the flanges 51 and 52 may face in the opposite direction.

(6) In the above-described embodiment, the shell 2 formed in the cross-sectional cylindrical shape has been described. However, the present invention is not limited to this. For example, the shell 2 may be formed in a cross-sectional elliptical shape.
(7) In the above embodiment, the example in which the outlet pipe 4 is in direct contact with the inner wall surface of the shell 2 is shown. However, as shown in FIG. You may arrange | position and contact | abut.

  (8) Each component of the present invention is conceptual and is not limited to the above embodiment. For example, the functions of one component may be distributed to a plurality of components, or the functions of a plurality of components may be integrated into one component. Further, at least a part of the configuration of the above embodiment may be replaced with a known configuration having the same function. In addition, at least a part of the configuration of the above embodiment may be added to or replaced with the configuration of the other embodiment.

DESCRIPTION OF SYMBOLS 1 ... Muffler 2 ... Shell 3 ... Inlet pipe 4 ... Outlet pipe 5 ... Separator 5a ... Separator 5b ... Separator 6 ... Recess 20 ... Body 21 ... Lid 21a ... Hole 21b ... Flange 21c ... Flange 22 ... Lid 22a ... Hole Part 22b ... Flange 22c ... Flange 40 ... Patch 50 ... Body 50a ... Through hole 51 ... Flange 52 ... Flange
61 ... Insertion space 62 ... Vent hole

Claims (12)

Shell (2),
Pipe (4),
A separator (5) for partitioning the space in the shell;
With
The separator is
When installed in the shell, it has a recess (6) that forms an insertion space (61) through which the pipe passes, and a flange (51) is provided on the outer edge of the separator including the recess. Formed,
The pipe is
At least a portion that passes through the insertion space is disposed in contact with an inner wall surface of the shell and a flange formed in the recess ,
The said recessed part is a muffler which forms the said insertion space which has an area larger than the cross-sectional area of the said pipe . Shell (2),
Pipe (4),
A separator (5) for partitioning the space in the shell;
With
The separator is
When installed in the shell, it has a recess (6) that forms an insertion space (61) through which the pipe passes, and a flange (51) is provided on the outer edge of the separator including the recess. Formed,
The pipe is
At least a portion that passes through the insertion space is disposed in contact with an inner wall surface of the shell and a flange formed in the recess,
Portion in which the pipe is in contact with the shell, luma hula is formed in a shape along the inner wall of the shell. The muffler according to claim 2 ,
The said recessed part is a muffler which forms the said insertion space which has an area larger than the cross-sectional area of the said pipe .   The muffler according to any one of claims 1 and 3,
  The recess is
    A muffler formed in a shape capable of forming a vent hole (62) at a position in contact with the shell when the pipe is inserted into the insertion space. The muffler according to any one of claims 1 to 4 ,
The inlet pipe (3),
An outlet pipe (4) as the pipe;
Pass the outlet pipe through the insertion space,
Passing the inlet pipe through a through hole formed in the separator,
The through hole of the luma hula have flanges formed at the edge portion. The muffler according to any one of claims 1 to 4 ,
The inlet pipe (3),
An outlet pipe (4) as the pipe;
Comprising two separators,
A through hole is formed in one of the separators, and the inlet pipe is passed through the through hole.
A recess is formed in the other separator, and the outlet pipe is passed through the insertion space,
The through hole of the luma hula have flanges formed at the edge portion. The muffler according to any one of claims 1 to 4 ,
The pipe includes an inlet pipe (3) and an outlet pipe (4),
The separator is provided with two recesses,
Passing the inlet pipe through the insertion space formed by one of the recesses,
Said outlet pipe passing to Ma hula into the insertion space that forms the other of the recess. Shell (2),
Pipe (4),
A separator (5) for partitioning the space in the shell;
With
The separator is
When installed in the shell, it has a recess (6) that forms an insertion space (61) through which the pipe passes, and a flange (51) is provided on the outer edge of the separator including the recess. Formed,
The pipe is
At least a portion that passes through the insertion space is disposed in contact with an inner wall surface of the shell and a flange formed in the recess,
The pipe includes an inlet pipe (3) and an outlet pipe (4),
The separator is provided with two recesses,
Passing the inlet pipe through the insertion space formed by one of the recesses,
Said outlet pipe passing to Ma hula into the insertion space that forms the other of the recess. A muffler according to any one of claims 1 to 8 ,
Whole, contact with arrangement to luma hula on the inner wall surface of said shell portion positioned within said shell of said pipe. In the muffler according to any one of claims 1 to 9 ,
Ma Hula placing the said pipe in contact with the inner wall surface of the bottom of the shell. In the muffler of any one of Claims 1-10,
Ma hula ends of the pipe, are arranged so as to be positioned into the insertion space. The muffler according to any one of claims 1 to 11,
The pipe is
At least portions which are passed through the insertion space, indirectly luma hula disposed in contact through the patch (40) on the inner wall surface of the shell.

Images