CN108884740A - The emission-control equipment of internal combustion engine - Google Patents

The emission-control equipment of internal combustion engine Download PDF

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Publication number
CN108884740A
CN108884740A CN201780014359.6A CN201780014359A CN108884740A CN 108884740 A CN108884740 A CN 108884740A CN 201780014359 A CN201780014359 A CN 201780014359A CN 108884740 A CN108884740 A CN 108884740A
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CN
China
Prior art keywords
mentioned
exhaust
shell
post
processing unit
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Withdrawn
Application number
CN201780014359.6A
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Chinese (zh)
Inventor
川岛幸博
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Isuzu Motors Ltd
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Isuzu Motors Ltd
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Filing date
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Application filed by Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Publication of CN108884740A publication Critical patent/CN108884740A/en
Withdrawn legal-status Critical Current

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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
    • F01N3/08—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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

It is related to the emission-control equipment (100) of internal combustion engine (1), including：Exhaust pipe (2)；Post-processing unit (3) has multiple catalyst (10) for purifying exhaust；Shell (4) accommodates post-processing unit (3)；Ingate (46) is arranged on shell (4), is inserted for the exhaust inlet pipe (31) of post-processing unit (3) there are gap (S1)；Outlet opening (47) is inserted for the exhaust exit pipe (32) of post-processing unit (3) there are gap (S2)；Heat-barrier material (5), is arranged on the inner peripheral surface of shell (4)；And heat-insulating and sealing component (6,7), it is arranged in gap (S1, S2).

Description

The emission-control equipment of internal combustion engine
Technical field
This disclosure relates to include the emission-control equipment of the internal combustion engine of post-processing unit.
Background technique
In general, in the vehicle equipped with internal combustion engine, for instance it is known to include the emission-control equipment of post-processing unit, the post-processing Unit is arranged in the way of device exhaust pipe and has multiple catalyst for being purified to the harmful substance in exhaust.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2008-240525 bulletin
Summary of the invention
Subject to be solved by the invention
In above-mentioned emission-control equipment, in order to which the temperature of catalyst is remained high temperature, consider post-processing unit It accommodates in the shell.It is provided on the shell：Ingate is inserted for the exhaust inlet pipe of post-processing unit；And outlet Hole is inserted for the exhaust exit pipe of post-processing unit.
But when inlet tube (or outlet) and ingate (or outlet opening) are when these insertion portions are tapped and touched, for example, When warming-up, the heat of post-processing unit is captured by shell from the contact portion, and the temperature of catalyst can reduce.
Therefore, the disclosure is invented in view of the situation, and its purpose is to provide one kind to be able to suppress post-processing unit Heat by shell capture and be able to suppress post-processing unit catalyst temperature reduce internal combustion engine emission-control equipment.
Means for solving the problems
The emission-control equipment of the internal combustion engine of the disclosure is characterised by comprising：Exhaust pipe；Post-processing unit is set It sets in the way of above-mentioned exhaust pipe, there are multiple catalyst for purifying exhaust；Shell accommodates above-mentioned post-processing unit； Ingate is arranged on above-mentioned shell, for above-mentioned exhaust inlet pipe there are inserting with gap, so that above-mentioned post-processing unit Exhaust inlet pipe it is protruding to the outside；Outlet opening is arranged on above-mentioned shell, and for above-mentioned exhaust exit pipe, there are with gap Insert, so that the exhaust exit pipe of above-mentioned post-processing unit is protruding to the outside；Heat-barrier material is arranged on the interior of above-mentioned shell On circumferential surface；Entrance side heat-insulating and sealing component is arranged in the gap of above-mentioned exhaust inlet pipe and above-mentioned ingate；And go out Mouth side heat-insulating and sealing component, is arranged in the gap of above-mentioned exhaust exit pipe and above-mentioned outlet opening.
Invention effect
In the emission-control equipment of the internal combustion engine of the disclosure, the heat that performance is able to suppress post-processing unit is captured by shell And the temperature for being able to suppress the catalyst of post-processing unit reduces such excellent effect.
Detailed description of the invention
Fig. 1 is the schematic structural diagram for indicating the emission-control equipment of an embodiment of the disclosure.
Fig. 2 is the enlarged view of the main part of Fig. 1.
Specific embodiment
Hereinafter, the embodiment based on the Detailed description of the invention disclosure.Fig. 1 is the internal combustion for indicating an embodiment of the disclosure The schematic structural diagram of the emission-control equipment of machine, Fig. 2 are its enlarged view of the main part.
As shown in Figure 1, emission-control equipment 100 includes：Exhaust pipe 2 passes through the exhaust of internal combustion engine 1；Post-processing is single Member 3, is arranged in the way of exhaust pipe 2, has multiple catalyst 10 for purifying exhaust；And shell 4, after accommodating Processing unit 3.
Internal combustion engine 1 is the multi-cylinder compression-ignition internal combustion engine being mounted in vehicle (not shown), i.e. diesel motor. The exhaust manifold 12 for the exhaust set for making to be discharged from each cylinder 11 is provided in internal combustion engine 1.
Exhaust pipe 2 is connected on exhaust manifold 12, and being will (the arrow downstream of the exhaust stream from exhaust manifold 12 Direction shown in G) and it is released to the pipe in atmosphere.
More specifically, which includes：Upstream side exhaust pipe 21 is located at the upstream side of post-processing unit 3；With And downstream side exhaust pipe 22, it is located at the downstream side of post-processing unit 3.Upstream side exhaust pipe 21 has convex in side end downstream Edge 21a, side end has flange 22a to downstream side exhaust pipe 22 at its upstream.
Next, illustrating post-processing unit 3.The direction all around of post-processing unit 3 is shown in Fig. 1.In addition, diagram The direction all around of post-processing unit 3 and the direction all around of vehicle are not related, only for ease of description and It determines.In the present embodiment, internal combustion engine 1 by it is longitudinal in the car, the left direction of post-processing unit 3 and the front direction of vehicle Unanimously.
Post-processing unit 3 includes：Exhaust inlet pipe 31；Exhaust exit pipe 32；1st catalyst shell 33, be built-in with to Few 1 catalyst 10；2nd catalyst shell 34 is built-in at least one catalyst 10；Connecting piece 35, by the 1st catalyst Shell 33 and the connection of the 2nd catalyst shell 34；And addition valve 36, add urea water.In addition, post-processing unit 3 has greatly Cause symmetrical construction.
Exhaust inlet pipe 31 is configured in the front end of post-processing unit 3 and left side, extends from front direction rear, front end It is connected on the downstream of upstream side exhaust pipe 21.In addition, exhaust exit pipe 32 is configured in the front end of post-processing unit 3 And right side, extend from front direction rear, front end is connected on the upstream end of downstream side exhaust pipe 22.
More specifically, flange 31a is provided in the upstream side end of exhaust inlet pipe 31, upstream side exhaust pipe 21 Flange 21a is connected on flange 31a.In addition, it is same, flange is provided in the end of downstream side of exhaust exit pipe 32 32a, the flange 22a of downstream side exhaust pipe 22 are connected on flange 32a.Flange interconnected each other by bolt (not Diagram) etc. buckling clamping parts and be removably secured.
1st catalyst shell 33 is formed tubulose, rearward extends from exhaust inlet pipe 31, also, is being located at rear end There is the 1st side opening 33b on the right side of the end of downstream side 33a in portion.In addition, being formed with the 1st expansion on the 1st catalyst shell 33 Diameter portion 33c, the 1st wide diameter portion the 33c quilt compared with the exhaust inlet pipe 31 for being located at upstream side and positioned at the connecting piece 35 in downstream side It is expanding.
1st catalyst shell 33 is in the position of the 1st wide diameter portion 33c across the 1st heat-insulated buffer component (pad) 37 from upstream side It rises and is built-in with oxidation catalyst (DOC：Diesel Oxidation Catalyst, diesel oxidation catalyst) 10a and particle mistake Filter (hereinafter referred to as " DPF ") 10b.
Oxidation catalyst 10a is by unburned ingredient (the hydrocarbon HC and carbon monoxide CO) oxidation in exhaust to purify.Oxidation is urged Agent 10a has when used in the oxidation of HC, CO the heat that generates by heating exhaust gas, the function of heating.In addition, oxidation catalyst 10a, which also has, is oxidized to NO for the NO in exhaust2To improve the NO in exhaust2The function of concentration.
Particulate material (PM contained in DPF10b trapping exhaust：Particulate Matter) and remove.At this In embodiment, DPF10b has been used the both ends open of the heat-resistant material of honeycomb shape closed institute alternately grid-likely Call the filter of wall stream type.But it is possible to physically trap the institute of PM using filter of the foam shape of mesh configuration etc. There is the filter of type.
DPF10b by make inner wall carry the noble metals such as Pt (catalyst) so-called continuous regenerative the DPF with catalyst It constitutes.In the case, in the usual operating of engine, it is fed into oxygen due to catalyst action of the HC in the exhaust of DPF10b Change, burning, at this point, simultaneously, the burned removing of PM being deposited in inside DPF10b.In addition, because DPF10b has catalyst, institute With herein, catalyst 10 described in the disclosure also includes DPF10b.
2nd catalyst shell 34 is formed tubulose, rearward extends from exhaust exit pipe 32, also, is being located at rear end There is the 2nd side opening 34b on the left side of the upstream side end 34a in portion.In addition, being formed with the 2nd expansion on the 2nd catalyst shell 34 Diameter portion 34c, the 2nd wide diameter portion the 34c quilt compared with the connecting piece 35 for being located at upstream side and positioned at the exhaust exit pipe 32 in downstream side It is expanding.
2nd catalyst shell 34 is in the position of the 2nd wide diameter portion 34c across the 2nd heat-insulated buffer component (pad) 38 from upstream side It rises and is built-in with NOx catalyst 10c and ammoxidation catalyst 10d.
NOx catalyst 10c is the catalyst for purifying the nitrogen oxide NOx in exhaust.NOx catalyst 10c is by selecting Reduced form NOx catalyst (SCR：Selective Catalytic Reduction, selective catalysis reduction) it constitutes, it can utilize Ammonia (the NH for hydrolyzing and generating from urea water3) continuously restore NOx.
Ammoxidation catalyst 10d is the remaining ammonia (NH that will be consumed not in NOx catalyst 10c by the reduction of NOx3) oxygen Change and generates N2Catalyst.
In the present embodiment, the 1st catalyst shell 33 and the 2nd catalyst shell 34 are configured in left and right with being mutually juxtaposed. In addition, the 1st side opening 33b and the 2nd side opening 34d are configured in mutually opposite position.
Connecting piece 35 is configured the position between the 1st catalyst shell 33 and the 2nd catalyst shell 34 in the lateral direction It sets, links the 1st side opening 33b and the 2nd side opening 34b.
More specifically, connecting piece 35 has：Part 1 35a (is illustrated from the 1st side opening 33b to the 2nd side side opening 34b Right side) extend, and warpage forwards；And part 2 35b, from the 2nd side opening 34b to the 1st side side opening 33b (diagram left side) Extend, and warpage forwards.Specifically, part 1 35a indicates the part of slave X1 to the X2 in figure, part 2 35b is indicated The part of slave Y1 to Y2 in figure.
In addition, connecting piece 35 has a third portion 35c, third portion 35c from the downstream X2 of part 1 35a forwards Extend, and turn back and rearward extend in U-shaped manner, is connect with the upstream end Y2 of part 2 35b.That is, by by connecting piece 35 It is formed with turning back in U-shaped manner in this way, thus compared with linearly connecting the 1st side opening 33b and the 2nd side opening 34d, connecting piece 35 Pipe range is elongated.
Addition valve 36 is configured as from the warpage part L of part 1 35a to the fold back portion U of third portion 35c from rear Urea water is added forwards.
Shell 4 is by having used the Box-type enclosures of the heat proof materials such as stainless steel to constitute, by the whole generally gas of post-processing unit 3 Thickly cover.Shell 4 inner peripheral surface almost on the whole, for the heat preservation of post-processing unit 3, and be laid with mineral wool etc. every Hot material 5.
In the rear surface 41 of shell 4, in the part at the rear for the warpage part L for being located at post-processing unit 3, it is formed with peace Add the mounting portion 42 for adding valve 36.Mounting portion 42 is by canyon topography forwards at being formed in its front end and extend along the longitudinal direction Outside insertion hole 43.In addition, on the rear end face of the warpage part L of post-processing unit 3, with the coaxial landform of outside insertion hole 43 At insertion hole 35d on the inside of having.It adds valve 36 and inserts insertion hole 43 and inside insertion hole on the outside from the outside (rear) of shell 4 In 35d the two, it is fixed on shell 4 by the boss portion 44 being arranged on mounting portion 42.
In the front surface 45 of shell 4, in order to enable the exhaust inlet pipe 31 of post-processing unit 3 is projected into the outer of shell 4 Portion (front), and it is formed with the ingate 46 inserted for exhaust inlet pipe 31 there are gap S1.In addition, in the preceding table of shell 4 On face 45, in order to enable the exhaust exit pipe 32 of post-processing unit 3 is projected into the outside (front) of shell 4, and it is formed with supply and discharge The outlet opening 47 that gas outlet 32 is inserted there are gap S2.
In the present embodiment, entrance side heat-insulating and sealing is provided in the gap S1 of exhaust inlet pipe 31 Yu ingate 46 Component 6 is provided with outlet side heat-insulating and sealing component 7 in the gap S2 of exhaust exit pipe 32 and outlet opening 47.These constructions exist 46 side of ingate by substantially same is constituted with 47 side of outlet opening.Therefore, for the construction of these details, only illustrate ingate 46 Side, and omit the explanation of 47 side of outlet opening.
Also as shown in detail in figure 2, entrance side heat-insulating and sealing component 6 is by the cricoid sealing inserted for exhaust inlet pipe 31 Component is constituted, and is formed by the lower material of thermal coefficient such as Heat resistant rubber.
Around the back side and ingate 46 of the front surface 45 of shell 4, it has been protrudedly formed for entrance side is heat-insulated Containment member 6 is mounted on the supporting member 48 on shell 4.In addition, in the back side of the front surface 45 of shell 4 and the week of outlet opening 47 It encloses, is formed with supporting member 49 same as supporting member 48.
More specifically, supporting member 48 is formed ring-type, has than ingate 46 greatly and than entrance side heat-insulating and sealing The slightly small internal diameter of the outer diameter of component 6.Entrance side heat-insulating and sealing component 6 is pressed into supporting member 48 from rear.
In this state, in assembling, when exhaust inlet pipe 31 is inserted into from the rear to the front in ingate 46, row The outer peripheral surface of gas inlet tube 31 is fixed (indentation) with the state for being close to the inner peripheral surface of entrance side heat-insulating and sealing component 6.As a result, Using entrance side heat-insulating and sealing component 6, the gap S1 of exhaust inlet pipe 31 and ingate 46 is sealed, and is significantly inhibited from entering Heat transmitting of the mouth pipe 31 to shell 4.
Next, illustrating the function and effect of the emission-control equipment 100 of present embodiment based on Fig. 1.
The exhaust of internal combustion engine 1 passes through upstream side exhaust pipe 21 from exhaust manifold 12, and by exhaust inlet pipe 31, to the 1st It is flowed into catalyst shell 33.
The exhaust being flowed into the 1st catalyst shell 33 passes through oxidation catalyst 10a, as a result, the unburned ingredient in exhaust (hydrocarbon HC and carbon monoxide CO) is aoxidized and is cleaned.
Next, the exhaust for having passed through oxidation catalyst 10a is flowed into DPF10b, the particulate material contained in exhaust (PM) it is trapped and is removed by DPF10b.
The exhaust for having passed through DPF10b flow to connection from the 1st side opening 33b of the rear end for being located at the 1st catalyst shell 33 The part 1 35a of pipe 35 carries out 90 ° of direction conversions along the warpage shape of part 1 35a forwards, flows to third portion 35c It is dynamic.
The exhaust for flowing to third portion 35c rearward carries out 180 ° of directions at fold back portion U and converts, and the rearward the 2nd 35b flowing in part carries out 90 ° of direction conversions along the warpage shape of part 2 35b, is catalyzed by the 2nd side opening 34b to the 2nd It is flowed into agent shell 34.
Herein, addition folded-back part of the valve 36 towards third portion 35c being configured on the warpage part L of part 1 35a U is divided to add urea water from the rear to the front.The urea water of addition rearward carries out 180 ° of direction conversions at fold back portion U, to The part 2 35b at rear flows, and carries out 90 ° of direction conversions along the warpage shape of part 2 35b, passes through the 2nd side opening 34b It is flowed into the 2nd catalyst shell 34.
Next, the exhaust containing at least one of urea water and ammonia is catalyzed by NOx in the 2nd catalyst shell 34 Agent 10c.At this point, NOx catalyst 10c utilizes the ammonia for being hydrolyzed and being generated by urea water to restore NOx.
Not in NOx catalyst 10c by NOx reduction consumption remaining ammonia contacted with ammoxidation catalyst 10d and by Oxidation is suppressed to the releasing of atmosphere.
By the exhaust of ammoxidation catalyst 10d, by exhaust exit pipe 32, downstream exhaust pipe 22 is discharged, from Downstream side exhaust pipe 22 is released to atmosphere.
In above effect, it is catalyzed about above-mentioned oxidation catalyst 10a, DPF10b, NOx catalyst 10c and ammoxidation Agent 10d effectively plays exhaust gas purification and makees when its catalyst temperature (reaction bed temperature) is in active temperature region With.Therefore, it is effective for the temperature of each catalyst 10 being remained high temperature as much as possible.
In the present embodiment, post-processing unit 3 is accommodated by being laid in the shell 4 of heat-barrier material 5 on inner peripheral surface, So as to inhibit post-processing unit 3 by outer gas or traveling air cooling, the temperature of each catalyst 10 can be remained high temperature.
On the other hand, when assuming that post-processing unit 3 exhaust inlet pipe 31 (or exhaust exit pipe 32) and be formed on outer When ingate 46 (or outlet opening 47) contact in the front surface 45 of shell 4, the heat of post-processing unit 3 can be by shell 4 from the contact Part seizes, and the temperature of each catalyst 10 can reduce.As a result, for example in warming-up, the activation of each catalyst 10 can be postponed.
Therefore, in the emission-control equipment of present embodiment 100, as shown in Figures 1 and 2, exhaust inlet pipe 31 with Entrance side heat-insulating and sealing component 6 is provided in the gap S1 of ingate 46, and between exhaust exit pipe 32 and outlet opening 47 Outlet side heat-insulating and sealing component 7 is provided in gap S2.
Thereby, it is possible to inhibit the heat of post-processing unit 3 to be seized by shell 4, it is able to suppress each catalyst of post-processing unit 3 10 temperature reduces.
In addition, entrance side heat-insulating and sealing component 6 and outlet side heat-insulating and sealing component 7 pass through sealing exhaust exit pipe 32 respectively With gap S1, S2 of outlet opening 47, so as to prevent water from gap immerse caused by post-processing unit 3 corrosion.
In addition, formed in the post-processing unit 3 of present embodiment because connecting piece 35 is turned back in U-shaped manner, Compared with linearly connecting the 1st side opening 33b and the 2nd side opening 34d, lengthening the pipe range of connecting piece 35 on the other hand can be compact Ground constitutes post-processing unit 3 and is therefore advantageous for vehicle-mounted.
In the post-processing unit 3 of present embodiment, the urea water added from addition valve 36 is by this by longer and fold-back The connecting piece 35 that ground is formed.It can be fully stirred between urea water and exhaust as a result, further promote urea water Hydrolysis.As a result, efficiently generating ammonia, the raising of the NOx removal in NOx catalyst 10c is advantageous.
In addition, the disclosure is not limited to above-mentioned embodiment, it can or else be detached from the range of the purport of the disclosure and fit When deformation is implemented.
The application is based on Japanese Patent Application (Patent 2016-041293) filed on March 3rd, 2016, by its content It is incorporated herein as reference.
Industrial applicibility
The emission-control equipment of the internal combustion engine of the disclosure is captured and is inhibited by shell in the heat for being able to suppress post-processing unit It is useful that the temperature of the catalyst of post-processing unit, which reduces this point,.
[label declaration]
1 internal combustion engine
2 exhaust pipes
3 post-processing units
4 shells
5 heat-barrier materials
6 entrance side heat-insulating and sealing components
7 outlet side heat-insulating and sealing components
31 exhaust inlet pipes
32 exhaust exit pipes
46 ingates
47 outlet openings
100 waste gas purification apparatuses
The gap S1, S2

Claims (3)

1. a kind of emission-control equipment of internal combustion engine, including：
Exhaust pipe,
Post-processing unit is arranged in the way of above-mentioned exhaust pipe, has multiple catalyst for purifying exhaust,
Shell accommodates above-mentioned post-processing unit,
Ingate is arranged on above-mentioned shell, for above-mentioned exhaust inlet pipe there are inserting with gap, so that above-mentioned post-processing The exhaust inlet pipe of unit is protruding to the outside,
Outlet opening is arranged on above-mentioned shell, for above-mentioned exhaust exit pipe there are inserting with gap, so that above-mentioned post-processing The exhaust exit pipe of unit is protruding to the outside,
Heat-barrier material is arranged on the inner peripheral surface of above-mentioned shell,
Entrance side heat-insulating and sealing component is arranged in the gap of above-mentioned exhaust inlet pipe and above-mentioned ingate, and
Outlet side heat-insulating and sealing component is arranged in the gap of above-mentioned exhaust exit pipe and above-mentioned outlet opening.
2. the emission-control equipment of internal combustion engine as described in claim 1, wherein
The part around above-mentioned ingate in the inner peripheral surface of above-mentioned shell is formed with entrance side support member, the entrance side Supporting member is prominent to the inside of above-mentioned shell, for above-mentioned entrance side heat-insulating and sealing component to be mounted on above-mentioned shell；
The part around above-mentioned outlet opening in the inner peripheral surface of above-mentioned shell is formed with outlet side support member, the outlet side Supporting member is prominent to the inside of above-mentioned shell, for above-mentioned outlet side heat-insulating and sealing component to be mounted on above-mentioned shell.
3. the emission-control equipment of internal combustion engine as claimed in claim 2, wherein
Above-mentioned entrance side support member is formed ring-type, has than above-mentioned ingate greatly and than above-mentioned entrance side heat-insulating and sealing The slightly small internal diameter of the outer diameter of component；
Above-mentioned outlet side support member is formed ring-type, has than above-mentioned outlet opening greatly and than above-mentioned outlet side heat-insulating and sealing The slightly small internal diameter of the outer diameter of component.
CN201780014359.6A 2016-03-03 2017-02-28 The emission-control equipment of internal combustion engine Withdrawn CN108884740A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2016041293A JP2017155693A (en) 2016-03-03 2016-03-03 Exhaust emission control device of internal combustion engine
JP2016-041293 2016-03-03
PCT/JP2017/007727 WO2017150513A1 (en) 2016-03-03 2017-02-28 Exhaust gas purification device for internal combustion engine

Publications (1)

Publication Number Publication Date
CN108884740A true CN108884740A (en) 2018-11-23

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Application Number Title Priority Date Filing Date
CN201780014359.6A Withdrawn CN108884740A (en) 2016-03-03 2017-02-28 The emission-control equipment of internal combustion engine

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JP (1) JP2017155693A (en)
CN (1) CN108884740A (en)
WO (1) WO2017150513A1 (en)

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JPH074825U (en) * 1993-06-17 1995-01-24 ダイハツ工業株式会社 Support structure for catalytic converter
JP2004525777A (en) * 2001-05-18 2004-08-26 ヘス エンジニアリング，インコーポレーテッド． Method and apparatus for manufacturing catalytic converter
CN101044301A (en) * 2004-08-02 2007-09-26 阿文技术有限公司 Catalytic converter and associated method of assembly
JP2008240525A (en) * 2007-03-23 2008-10-09 Toyota Motor Corp Exhaust emission control device
JP2014194204A (en) * 2013-03-29 2014-10-09 Yanmar Co Ltd Exhaust gas cleaning device

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JPS5217626Y2 (en) * 1973-08-20 1977-04-21
JPS5534261Y2 (en) * 1975-10-24 1980-08-14
JPS5351505U (en) * 1976-10-05 1978-05-02
JPH072971Y2 (en) * 1988-01-29 1995-01-30 本田技研工業株式会社 Silencer
JPH07259545A (en) * 1994-03-23 1995-10-09 Toyota Motor Corp Catalytic converter
DE10020492A1 (en) * 2000-04-26 2001-10-31 Eberspaecher J Gmbh & Co Exhaust device of an exhaust system, in particular a motor vehicle catalytic converter in modular design
JP2014088878A (en) * 2013-12-25 2014-05-15 Yanmar Co Ltd Engine device loaded in work vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328187A (en) * 1972-07-10 1982-05-04 Kali-Chemie Ag Elastic suspension for a monolithic catalyzer body in an exhaust gas cleaning device
JPH074825U (en) * 1993-06-17 1995-01-24 ダイハツ工業株式会社 Support structure for catalytic converter
JP2004525777A (en) * 2001-05-18 2004-08-26 ヘス エンジニアリング，インコーポレーテッド． Method and apparatus for manufacturing catalytic converter
CN101044301A (en) * 2004-08-02 2007-09-26 阿文技术有限公司 Catalytic converter and associated method of assembly
JP2008240525A (en) * 2007-03-23 2008-10-09 Toyota Motor Corp Exhaust emission control device
JP2014194204A (en) * 2013-03-29 2014-10-09 Yanmar Co Ltd Exhaust gas cleaning device

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JP2017155693A (en) 2017-09-07

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