CN110195631A - Waste gas purification apparatus - Google Patents
Waste gas purification apparatus Download PDFInfo
- Publication number
- CN110195631A CN110195631A CN201910110033.4A CN201910110033A CN110195631A CN 110195631 A CN110195631 A CN 110195631A CN 201910110033 A CN201910110033 A CN 201910110033A CN 110195631 A CN110195631 A CN 110195631A
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- China
- Prior art keywords
- halfbody
- honeycomb substrate
- liner
- shell
- waste gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
Abstract
The present invention provides a kind of waste gas purification apparatus, and when making to accommodate the matching of the halfbody of shell of honeycomb substrate, liner will not be squeezed out.Waste gas purification apparatus (1) includes columnar honeycomb substrate (10)；It pads (30), is wound in the outer peripheral surface (11) of honeycomb substrate (10)；And shell (20), it keeps honeycomb substrate (10) with the state of compresses liner (30), shell (20) being radially divided into of honeycomb substrate (10) halfbody (female side halfbody 21) and another halfbody (male side halfbody 22) the two, one halfbody (female side halfbody 21) is fitted into a manner of the outside in another halfbody (male side halfbody 22), liner (30) is configured to, closing up near the center that portion (33) are located in the circumferential direction of a halfbody (female side halfbody 21) in the state of being wound in outer peripheral surface (11) of honeycomb substrate (10).
Description
Technical field
The present invention relates to a kind of waste gas purification apparatuses.
Background technique
In the past, the waste gas purification apparatus for being set to the exhaust channel of internal combustion engine, which has, is contained in cylinder for columnar honeycomb substrate
The intracorporal structure of the shell of shape.Honeycomb substrate utilizes the lining assigned between the outer peripheral surface and shell inner surface of itself with compressive state
It pads and is maintained in shell.It proposes such technology: when keeping honeycomb substrate across liner using cylindrical shell, mitigating
Act on the non-uniform degree of face pressure of honeycomb substrate (referring for example to patent document 1).
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 9-112260 bulletin
Summary of the invention
Problems to be solved by the invention
In the technology of patent document 1, the shell for accommodating honeycomb substrate is set as by the two sides of axis direction in its center
The structure that 2 chimeric halfbodies of edge are constituted, and the direction of shell when making 2 halfbodies chimeric intersected with central axis
Cross sectional shape becomes elliptical shape.As a result, when making 2 halfbodies match and be fitted into, mitigate to being wound in honeycomb substrate
The stretching of liner, can reduce the degree of irregularity of the face pressure of honeycomb substrate in the circumferential, to make the retentivity of honeycomb substrate
It improves.
However, when making 2 halfbodies match and be fitted into, being wound in the liner of honeycomb substrate in the technology of patent document 1
It is not accommodated in shell completely homogeneously, may be squeezed out from chimeric position.
The present invention has been made in view of the above-described circumstances, and it is an object of the present invention to provide a kind of waste gas purification apparatus, when making to accommodate bee
When the halfbody matching of the shell of nest carrier, liner will not be squeezed out.
Means for solving the problems
(1) a kind of waste gas purification apparatus (such as aftermentioned waste gas purification apparatus 1), includes columnar honeycomb substrate (example
Honeycomb substrate 10 as be described hereinafter)；Liner (such as aftermentioned liner 30), be wound in the honeycomb substrate outer peripheral surface (such as
Aftermentioned outer peripheral surface 11)；And shell (such as aftermentioned shell 20), the honeycomb is kept to compress the state of the liner
Carrier, which is characterized in that the shell is radially divided into a halfbody (such as aftermentioned female side the honeycomb substrate
Halfbody 21) with another halfbody (such as aftermentioned male side halfbody 22) the two, one halfbody in it is described another
The mode in the outside of halfbody is chimeric, and the liner is configured to, in the state of being wound in the outer peripheral surface of the honeycomb substrate
Close up near the center that portion (such as aftermentioned close up portion 33) is located in the circumferential direction of one halfbody.
In the waste gas purification apparatus of above-mentioned (1), the shape in the outer peripheral surface for being wound in the honeycomb substrate of the liner
The portion of closing up under state is arranged near the center in the circumferential direction of one halfbody.Therefore, when for make a halfbody with it is another
When a matched pressing force of halfbody is applied to liner by another halfbody, which closes up portion with the extrusion and constriction that inhibit liner
The mode at interval acted on.Therefore, when making to accommodate the matching of the halfbody of shell of honeycomb substrate, liner will not be from two and half
The matching part of body squeezes out.Therefore, as waste gas purification apparatus, exhaust gas leakage can be prevented.Bee is kept in addition, steadily ensure that
Face pressure necessary to nest carrier.
(2) waste gas purification apparatus according to (1), wherein the central axis with the honeycomb substrate of the shell
The profile (such as aftermentioned profile C) in the section that (such as aftermentioned central axis X) intersects have linear straight portion (such as
Aftermentioned straight portion 251,252 and straight portion 253,254).
In the waste gas purification apparatus of above-mentioned (2), make pressing force when the matching of two halfbodies from the straight of another halfbody
Portion is delivered evenly to liner, using the power of transmitting, to inhibit liner at the curved portion (portion R) that the end with straight portion is connected
Squeeze out and constriction is closed up the mode in portion and is acted on.Therefore, liner is reliably wound in the periphery of honeycomb substrate.Therefore, bee
Nest carrier is stablized, easy with the phase matched transfiguration of liner.
(3) waste gas purification apparatus according to (2), wherein the section of the shell is fillet oblong-shaped, institute
State straight portion be arranged in it is corresponding short with the both ends of the short side direction of the fillet oblong-shaped (such as aftermentioned short side direction S)
Diameter portion (such as aftermentioned narrow section SP1, SP2).
In the waste gas purification apparatus of above-mentioned (3), the section is fillet oblong-shaped, straight portion setting with institute
State the corresponding position in both ends (such as the aftermentioned minor axis of the short side direction (such as aftermentioned short side direction S) of fillet oblong-shaped
Portion SP1, SP2), therefore honeycomb substrate is more stable, becomes to be more easier with the phase matched of liner.
(4) waste gas purification apparatus according to (2) or (3), wherein the section of the shell is fillet rectangle
Shape, fitting portion (such as the fitting portion 211,212 and hero of aftermentioned female side halfbody 21 of one halfbody and another halfbody
222) fitting portion 221 of side halfbody 22 is located at longitudinal direction (such as aftermentioned longitudinal direction L) with the fillet oblong-shaped
The corresponding length-diameter part in both ends (such as aftermentioned length-diameter part LP1, LP2).
In the waste gas purification apparatus of above-mentioned (4), the section of shell is fillet oblong-shaped, across liner by honeycomb substrate
It compresses fixed (canned) to be easy in the intracorporal operation of shell, the welding at fitting portion is also easy.Therefore, productivity is excellent.
Invention effect
In accordance with the invention it is possible to a kind of waste gas purification apparatus be provided, in the halfbody matching for making to accommodate the shell of honeycomb substrate
When, liner will not squeeze out, and steadily ensure that face pressure necessary to keeping honeycomb substrate.
Detailed description of the invention
Fig. 1 is the exploded perspective view of the waste gas purification apparatus of an embodiment of the invention.
Fig. 2 is the perspective view for showing honeycomb substrate.
Fig. 3 is the cross-sectional view in the direction of honeycomb substrate intersected with central axis.
Fig. 4 is the schematic cross-sectional view in the direction along central axis of honeycomb substrate.
Fig. 5 is the exploded perspective view of shell.
Fig. 6 is the cross-sectional view in the direction of shell intersected with central axis.
Fig. 7 is the schematic diagram for showing the assembling steps of waste gas purification apparatus of present embodiment.
Fig. 8 is the schematic diagram for showing the assembling steps of waste gas purification apparatus of comparative example.
Label declaration
1: waste gas purification apparatus；
10: honeycomb substrate；
11: outer peripheral surface；
20: shell；
21: female side halfbody；
22: male side halfbody；
30: liner；
31,32: end；
33: closing up portion；
201,202: joggle；
211,212,221,222: fitting portion；
251,252,253,254: straight portion.
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to an embodiment of the invention.
Fig. 1 is the exploded perspective view of the waste gas purification apparatus 1 of present embodiment.
Waste gas purification apparatus 1 is to be referred to as DPF (Diesel Particulate Filter: diesel particulate filters)
Exhaust emission control filter, the exhaust channel of diesel engine (not shown) is set, is captured in and circulates in exhaust channel
Particle in exhaust gas.The waste gas purification apparatus 1 has: columnar honeycomb substrate 10；Liner 30, is wound in honeycomb substrate 10
Outer peripheral surface 11；And shell 20, honeycomb substrate 10 is kept with the state of compresses liner 30.
Honeycomb substrate 10 is that the wall of exhaust gas particle trapping is through, such as using silicon carbide as material.
Honeycomb substrate 10 has the multiple units being divided by next door, the both ends about unit in exhaust gas flow direction
An end face and another end face are closed in face in a manner of with adjacent units alternately.In honeycomb substrate 10, exhaust gas is from column
Flowed into the unit of exhaust gas flow direction upstream side opening, when exhaust gas is by next door between adjacent unit, exhaust gas particle
Be captured, pass through next door and eliminate the exhaust gas of exhaust gas particle from cylindrical shape to exhaust gas flow direction downstream side opening
Unit outflow.
Honeycomb substrate 10 is integrally formed as column, it is contemplated that center axis thereof X.In the outer peripheral surface 11 of honeycomb substrate 10
It is wound with liner 30, shell 20 keeps honeycomb substrate 10 with the state of compresses liner 30.
Fig. 2 is the perspective view of honeycomb substrate 10.
The profile C1 for the section S1 of columnar honeycomb substrate 10 intersected with center axis thereof X is at least at one (in this example
For everywhere) have and be formed as linear straight portion 111,112,113,114, and its elsewhere have curved portion 121,122,
123,124.Swells 131,132,133,134 outstanding to the outer direction is formed in curved portion 121,122,123,124.Separately
On the one hand, straight portion 111,112,113,114 is flat.
Fig. 3 is the cross-sectional view with the direction of Axis Cross at the position including swells of honeycomb substrate.
As shown in figure 3, the profile C1 of the section S1 of honeycomb substrate 10 is fillet oblong-shaped, with its longitudinal direction LD's
Both ends corresponding length-diameter part LD1, LD2 and narrow section SD1, SD2 corresponding with the both ends of its short side direction SD are respectively formed with pen
Straight portion 111,112,113,114.The vertical arrow line LD and SD for being depicted in lower section in Fig. 3 conceptually indicates that the fillet is long
The longitudinal direction and short side direction of square shape.With above-mentioned length-diameter part LD1, LD2 be respectively correspondingly formed with straight portion 111,
112, straight portion 113,114 is respectively correspondingly formed with above-mentioned narrow section SD1, SD2.As a result, when considering with diagonal
Connection imagination made of the intersection point on above-mentioned straight portion 111,112 and straight portion 113,114 respective extended lines is diagonal
When line, swells 131,132,133,134 is located in corresponding notional diagonal in couples.It is multiple straight to be formed in this way
Portion, it can be ensured that the area of section of biggish honeycomb substrate 10, so as to reduce the pressure loss of exhaust gas.Furthermore swells
131,132,133,134 are located in above-mentioned notional diagonal in couples, therefore, at curved portion 121,122,123,124 pair
The face pressure that liner 30 applies effectively improves, and the management of face pressure is easy.
Fig. 4 is the schematic diagram of the section S2 parallel with central axis X of honeycomb substrate 10.Especially section S2 is to include
The section at the position of above-mentioned swells 131,133 (132,134) and central axis X.In other words, section S2 be include central axis
The section at the position of line X and above-mentioned notional diagonal.
As shown in figure 4, in the section S2 parallel with central axis X of honeycomb substrate 10, the side of being shaped generally as profile C2
The upper and lower side of shape, profile C2 is corresponding with an exhaust gas flow-in side of honeycomb substrate 10 and exhaust gas flow-out side.In addition, the left and right of profile C2
Side be position corresponding with the outer peripheral surface 11 of columnar honeycomb substrate 10.Drum is protruded at position corresponding with the outer peripheral surface 11
It rises portion 131,133 (132,134).
As shown in figure 4, swells 131,133 (132,134) is formed in the end face of an exhaust gas flow-in side from honeycomb substrate 10
To the middle position of the end face of outflow side.In other words, the both ends of the surface of swells 131,133 (132,134) are respectively formed in
Heart axis X flows into end face than the exhaust gas of honeycomb substrate 10 and flows out the position for leaning on center side in end face.Therefore, in honeycomb substrate 10
When outer peripheral surface 11 is wound with unshowned liner in Fig. 4, swells 131,133 (132,134) including the both ends of the surface
Entire surface is covered by liner, and honeycomb substrate properly maintains position using liner in shell.
Next, being illustrated referring to Fig. 5 and Fig. 6 to the structure of shell 20.
Fig. 5 is the exploded perspective view of shell 20, and Fig. 6 is that the direction of shell 20 intersected with central axis X (is vertical in this example
Straight direction) on cross-sectional view.In addition in Fig. 6, for easy understanding, omit the honeycomb substrate 10 that is contained in shell 20 and
The diagram of liner 30.
As shown in figure 5, shell 20 is radially divided into two in honeycomb substrate 10, a halfbody, that is, female side halfbody 21
It is that male side halfbody 22 is configured to be fitted into such a way that female side halfbody 21 is located at the outside of male side halfbody 22 with another halfbody.Such as figure
Shown in 6, shell 20 is integrally formed into tubular, and and honeycomb substrate in the state that female side halfbody 21 is chimeric with male side halfbody 22
10 common center axis Xs.
As shown in fig. 6, the profile C of the section S of shell 20 is following such fillet oblong-shaped: with its longitudinal direction
The both ends of L corresponding length-diameter part LP1, LP2 and narrow section SP1, SP2 corresponding with the both ends of its short side direction S are respectively formed with
Straight portion.The vertical arrow line L and S for being depicted in lower section in Fig. 5 conceptually indicates the long side side of the fillet oblong-shaped
To and short side direction.It is respectively correspondingly formed with straight portion 251,252 with above-mentioned length-diameter part LP1, LP2, with above-mentioned minor axis
Portion SP1, SP2 are respectively correspondingly formed with straight portion 253,254.
In addition, a halfbody is with the mating position of another halfbody in portion corresponding with above-mentioned length-diameter part LP1, LP2
Position.Specifically, accordingly with length-diameter part LP1, there are the fitting portion 211 of female side halfbody 21 and the fitting portions of male side halfbody 22
221.In addition, accordingly with length-diameter part LP2, there are the fitting portion 212 of female side halfbody 21 and the fitting portions 222 of male side halfbody 22.
The fitting portion 211 of female side halfbody 21 is formed with joggle 201, and the joggle 201 is to be equivalent to male side halfbody 22
The size of the plate thickness of fitting portion 221 is with forming scale outward prominent.Similarly, the fitting portion 212 of female side halfbody 21 is formed with
Joggle 202, the joggle 202 form scale with the size for being equivalent to the plate thickness of the fitting portion 222 of male side halfbody 22 outward
Ground is prominent.
Fig. 1 is returned to, liner 30 is wound in the periphery of honeycomb substrate 10 in a manner of covering swells 131,132,133,134
Face 11.That is, liner 30 circumferentially around honeycomb substrate 10 straight portion 111,112,113,114 and curved portion 121,122,
123,124, and around the periphery of honeycomb substrate 10 in a manner of covering the position for being formed with swells 131,132,133,134.
Liner 30 is used with heat-resisting, resistance to vibration, the alumina fibre of sealing function and shock absorption, silicon dioxide fibre, silicon
The ceramic fibres such as sour aluminum fiber, glass fibre.
Next, referring to figs. 1 to Fig. 6, assembling steps and its effect and effect to illustrated waste gas purification apparatus 1 into
Row explanation.
Fig. 7 is the schematic diagram for showing the assembling steps of waste gas purification apparatus 1 of present embodiment.
Firstly, the honeycomb substrate 10 for being wound with the liner 30 is received in the winding of outer peripheral surface 11 liner 30 of honeycomb substrate 10
It is contained in the female side halfbody 21 for being placed in workbench.At this point, being configured to as shown in fig. 7, padding 30, it is being wound in honeycomb substrate
Both ends 31,32 in the state of 10 outer peripheral surface 11 close up near the center that portion 33 is located in the circumferential direction of female side halfbody 21.
Next, make male side halfbody 22 from upper side relative to accommodate as described above honeycomb substrate 10 and liner 30 it is female
Side halfbody 21 is close and presses, and male side halfbody 22 is thus made to be embedded in female side halfbody 21.Herein, it is embedded in male side halfbody 22
When female side halfbody 21, the honeycomb substrate 10 of liner 30 will be wound with as described above, being located at female side half with the portion 33 that closes up for padding 30
The mode near center in the circumferential direction of body 21 is positioned on female side halfbody 21.Honeycomb substrate 10 is being positioned in female side as a result,
In the state of on halfbody 21, for being in the male side halfbody 22 of open state as shown in Figures 1 and 5, with covering and compresses liner
30 mode applies pressing force F to female 21 side of side halfbody.
As shown in fig. 7, the portion 33 that closes up of liner 30 is located at above-mentioned position this point and female side halfbody 21 and male side halfbody 22
Each inner peripheral surface be to get over closer to the front end side of circumferential edge towards the curved surface this point of inner circumferential to be combined with each other, pressing force F is such as
Under acted on.That is, pressing force F acts on liner 30 as power Wf1 and Wf2, power Wf1 and Wf2 make liner 30 surround bee
The outer peripheral surface 11 of nest carrier 10 and the extrusion for inhibiting liner 30, and constriction closes up portion 33
It is appreciated that the pressing force F transmitted from male 22 side of side halfbody in the end phase with straight portion 253,254 referring to Fig. 7
Image force Wf1 and Wf2 are used as counterclockwise and clockwise component like that at curved portion even, to the extrusion for inhibiting liner and make
The direction for closing up the mutual constriction in portion is acted on.Therefore, honeycomb substrate 10 is compressed into fixed (canned) in shell across liner 30
Operation in 20 is easy, and female side halfbody 21 is also easy with the welding at the fitting portion of male side halfbody 22.Therefore, productivity is excellent.
In addition, when matching the female side halfbody 21 for the shell 20 for accommodating honeycomb substrate 10 with male side halfbody 22, liner 30
It will not be squeezed out from the matching part of two halfbodies 21,22.Therefore, using pressing force F, the fitting portion 221,222 of male side halfbody 22 with
The fitting portion 211,212 of female side halfbody 21 is suitably fitted into.Also, liner 30 will not be squeezed from the matching part of two halfbodies 21,22
Out, therefore steadily it ensure that face pressure necessary to keeping honeycomb substrate 10.In this case, the fitting portion of male side halfbody 22
221,222 it is correctly embedded in the above-mentioned joggle 201,202 in the fitting portion 211,212 of female side halfbody 21, do not generated useless
Protrusion, and obtain being conducive to keeping the face contact of air-tightness.Therefore, as waste gas purification apparatus 1, can effectively prevent
Only exhaust gas leakage.In Fig. 7, show the position of gazing at including joggle 201 with the circle of double dot dash line, but this gaze at position that
The effect of sample is same to be generated in the position for including joggle 202.
Fig. 8 is the schematic diagram for showing the assembling steps of waste gas purification apparatus of comparative example.Herein, the waste gas purification of comparative example
Device is different from the waste gas purification apparatus 1 of present embodiment, refers to the site closure for being not provided to liner in the week of female side halfbody
Waste gas purification apparatus near upward center.
The case where waste gas purification apparatus of comparative example in Fig. 8 is to load on the male side halfbody 22a of downside in the figure
It is wound in the state of the honeycomb substrate 10 of liner 30, is pressed female side halfbody 21a to the male side side halfbody 22a using pressing force F,
To keep female side halfbody 21a chimeric with hero side halfbody 22a.In this case, using pressing force F act on liner 30 power Wf3 and
Wf4 is in a manner of squeezing out liner 30 from the matching part of the end 211a of the end 221a and female side halfbody 21a of male side halfbody 22a
It is acted on.Therefore, the extrusion portion 35 of diagram is produced.In fig. 8, it is shown with the circle of double dot dash line including extrusion portion 35
Gaze at position.The phenomenon that effect as described above has the power for squeezing out liner 30 equally results from the end of male side halfbody 22a
The matching part of the end 212a of 222a and female side halfbody 21a.
Therefore, in the waste gas purification apparatus of comparative example shown in Fig. 8, it is difficult to suitably carry out liner 30 in shell 20
To the winding of honeycomb substrate 10, in the matching part of female side halfbody 21a and hero side halfbody 22a, there may be exhaust gas leakages.In this regard, root
According to Fig. 1 to waste gas purification apparatus 1 shown in Fig. 7, will not lead to the problem of as described above in the case where Fig. 8.
Waste gas purification apparatus 1 according to the present embodiment, plays effect below.
(1) in waste gas purification apparatus 1, closing up in the state of 30 outer peripheral surface 11 for being wound in honeycomb substrate 10 is padded
Portion 33 is arranged near the center in the circumferential direction of female side halfbody 21.Therefore, when for making female side halfbody 21 and male side halfbody 22
When the pressing force F matched is applied to liner 30 by male side halfbody 22, pressing force F closes up between portion 33 as inhibiting to squeeze out simultaneously constriction
Every component Wf1 and Wf2 acted on (referring to Fig. 4).Therefore, in the female side halfbody 21 for the shell 20 for making to accommodate honeycomb substrate 10
When matching with male side halfbody 22, liner 30 will not be squeezed out from the matching part of two halfbodies 21,22.Therefore, it is filled as waste gas purification
1 is set, exhaust gas leakage can be prevented.In addition, liner 30 will not be squeezed out from the matching part of two halfbodies 21,22, therefore steadily protect
Face pressure necessary to holding honeycomb substrate 10 is demonstrate,proved.
(2) in waste gas purification apparatus 1, pressing force F when matching two halfbodies 21,22 is from the straight of male side halfbody 22
Portion 251,252 is delivered evenly to liner 30, using the power of transmitting, in the arc being connected with the end of straight portion 251,252
Inhibit the extrusion of liner 30 at portion and acts on the mode for closing up the mutual constriction in portion 33.Therefore, liner 30 is reliably wound
In the periphery of honeycomb substrate 10.Therefore, honeycomb substrate 10 is stablized, easy with the phase matched transfiguration of liner 30.
(3) in waste gas purification apparatus 1, the section of shell 20 is fillet oblong-shaped (referring to Fig. 3), straight portion 253,
254 are arranged in narrow section SP1, SP2 corresponding with the both ends of short side direction S of fillet oblong-shaped, therefore honeycomb substrate 10 is more
Add stabilization, becomes to be more easier with the phase matched of liner 30.
(4) section of shell 20 is fillet oblong-shaped (on the right side of Fig. 3), the fitting portion 211,212 and hero of female side halfbody 21
The fitting portion 221,222 of side halfbody 22 be located at length-diameter part LP1 corresponding with the both ends of longitudinal direction L of fillet oblong-shaped,
Therefore honeycomb substrate 10 is compressed the operation of fixed (canned) in shell 20 across liner 30 and is easy by LP2, female side halfbody 21
It is also easy with the welding at the fitting portion of male side halfbody 22.Therefore, productivity is excellent.
In addition, in waste gas purification apparatus discussed above, the section of shell 20 is fillet oblong-shaped, straight portion 251,
252 and straight portion 253,254 be formed in narrow section SP1, SP2 corresponding with the both ends of short side direction S and with longitudinal direction L two
Corresponding length-diameter part LP1, LP2 are held, but not limited to this, straight portion 251,252 can be made only in the both ends pair with short side direction S
Narrow section SP1, SP2 answered.In this case, pressing force F when matching two halfbodies 21,22 is also from the pen of male side halfbody 22
Straight portion 251,252 is delivered evenly to liner 30, using the power of transmitting, in the arc being connected with the end of straight portion 251,252
Inhibit the extrusion of liner 30 at shape portion and acts on the mode for closing up the mutual constriction in portion 33.Therefore, liner 30 is reliably rolled up
It is around in the periphery of honeycomb substrate 10, honeycomb substrate 10 is stablized, easy with the phase matched transfiguration of liner 30.
Furthermore in the above-described embodiment, for waste gas purification apparatus of the invention, it is with the DPF for diesel engine
Example is illustrated, however, the present invention is not limited thereto.Waste gas purification apparatus of the invention also can be applied to referred to as GPF
The exhaust emission control filter of (Gasoline Particulate Filter, gasoline particles filter), GPF are set in gasoline
The exhaust pipe of combustion engine traps the particle-like substance in the exhaust gas to circulate in exhaust pipe.
Claims (4)
1. a kind of waste gas purification apparatus, which has: columnar honeycomb substrate；Liner, is wound in the bee
The outer peripheral surface of nest carrier；And shell, the honeycomb substrate is kept to compress the state of the liner,
It is characterized in that,
The shell the honeycomb substrate be radially divided into a halfbody and another halfbody the two, it is one
Halfbody is fitted into a manner of the outside in another halfbody,
The liner is configured to, and site closure in the state of being wound in the outer peripheral surface of the honeycomb substrate is in one
Near center in the circumferential direction of halfbody.
2. waste gas purification apparatus according to claim 1, which is characterized in that
The profile in the section of the shell intersected with the central axis of the honeycomb substrate has linear straight portion.
3. waste gas purification apparatus according to claim 2, which is characterized in that
The section of the shell is fillet oblong-shaped, and the straight portion is respectively formed at and the fillet oblong-shaped
The corresponding narrow section in the both ends of short side direction.
4. waste gas purification apparatus according to claim 2 or 3, which is characterized in that
The section of the shell is fillet oblong-shaped, the mating position of one halfbody and another halfbody in institute
State the corresponding length-diameter part in both ends of the longitudinal direction of fillet oblong-shaped.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018033199A JP6678691B2 (en) | 2018-02-27 | 2018-02-27 | Exhaust gas purification device |
| JP2018-033199 | 2018-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110195631A true CN110195631A (en) | 2019-09-03 |
| CN110195631B CN110195631B (en) | 2022-03-25 |
Family
ID=67751450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910110033.4A Active CN110195631B (en) | 2018-02-27 | 2019-02-11 | Exhaust gas purification device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6678691B2 (en) |
| CN (1) | CN110195631B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022165A (en) * | 2019-12-23 | 2020-04-17 | 张秀丽 | Engine exhaust structure |
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| JPS63193720U (en) * | 1987-05-30 | 1988-12-13 | ||
| JPH07269334A (en) * | 1994-03-31 | 1995-10-17 | Ibiden Co Ltd | Mounting method of converter heat insulating seal material for exhaust emission control for automobile |
| JPH09112260A (en) * | 1995-10-16 | 1997-04-28 | Honda Motor Co Ltd | Catalyst converter |
| CN1246809A (en) * | 1997-02-07 | 2000-03-08 | 发射技术有限公司 | Honeycomb body with flattened cross-sectional area |
| CN1883791A (en) * | 2005-06-24 | 2006-12-27 | 揖斐电株式会社 | Honeycomb structure |
| US20100266462A1 (en) * | 2009-04-17 | 2010-10-21 | Amit Kumar | Exhaust Gas Treatment Device |
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| CN111022165A (en) * | 2019-12-23 | 2020-04-17 | 张秀丽 | Engine exhaust structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019148220A (en) | 2019-09-05 |
| CN110195631B (en) | 2022-03-25 |
| JP6678691B2 (en) | 2020-04-08 |
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