CN102317589B - Engine - Google Patents
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- CN102317589B CN102317589B CN201080007324.8A CN201080007324A CN102317589B CN 102317589 B CN102317589 B CN 102317589B CN 201080007324 A CN201080007324 A CN 201080007324A CN 102317589 B CN102317589 B CN 102317589B
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- Prior art keywords
- exhaust
- gas
- exhaust manifold
- purification catalyst
- gas purification
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- 239000003054 catalyst Substances 0.000 claims abstract description 290
- 238000000746 purification Methods 0.000 claims abstract description 236
- 238000006555 catalytic reaction Methods 0.000 claims description 67
- 230000030279 gene silencing Effects 0.000 claims description 66
- 239000003795 chemical substances by application Substances 0.000 claims description 63
- 238000011144 upstream manufacturing Methods 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 615
- 238000012423 maintenance Methods 0.000 description 23
- 238000007789 sealing Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 18
- 238000012856 packing Methods 0.000 description 18
- 230000013011 mating Effects 0.000 description 15
- 230000003647 oxidation Effects 0.000 description 13
- 238000007254 oxidation reaction Methods 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 8
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- 230000003197 catalytic effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000037361 pathway Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- -1 platinum Chemical class 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
Images
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
- F01N3/24—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
-
- 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
-
- 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
- F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1025—Rhodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1028—Iridium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
Disclosed is an engine (100) which comprises a cylinder head (3), a muffler (6), and an exhaust manifold (5, 105, 205, 305) that is interposed between the cylinder head (3) and the muffler (6). The exhaust manifold (5, 105, 205, 305) has an exhaust inlet (12a, 112a) communicating with an exhaust port (34) that is formed within the cylinder head (3), and an exhaust outlet (11c, 111c) communicating with the muffler (6). The engine (100) is provided with an exhaust purification device (10, 110, 210). The exhaust purification device (10, 110, 210) is configured of the exhaust manifold (105, 205, 305) and an exhaust purifying catalyst (41, 42, 23) which is arranged in an internal space that serves as an exhaust passage between the exhaust inlet (12a, 112a) and the exhaust outlet (11c, 111c) of the exhaust manifold (105, 205, 305).
Description
Technical field
The present invention relates to a kind of motors such as diesel engine that dispose exhaust gas purification catalyst in exhaust pathway.
Background technique
Contain higher nitrogen oxide, the particulate material of possibility that environmental pollution exerts an influence in the exhaust of discharging from the internal-combustion engines such as diesel engine (below be called " motor ").Consideration for the environmental problem to nearest, the restriction of exhaust is stricter, in order to tackle this problem, someone proposes a kind of technology that configures exhaust gas purification catalyst (oxidation catalyst) in the exhaust pathway of motor, and this kind of technology for example is disclosed in patent documentation 1,2,3.
Patent documentation 1: TOHKEMY 2006-22752 communique
Patent documentation 2: TOHKEMY 2006-29121 communique
Patent documentation 3: TOHKEMY 2008-31955 communique
But patent documentation 1,2,3 disclosed exhaust gas purification catalysts all are enclosed in silencing apparatus.Thereby, with the amount of accommodating exhaust gas purification catalyst accordingly, silencing apparatus maximizes, and cause the maximization of motor integral body, and the shape of motor integral body may break away from normalized shape.In addition, silencing apparatus is one of very large engine components, in order to change exhaust gas purification catalyst, needs dismounting, decomposes larger silencing apparatus, therefore affects the maintainability of exhaust gas purification catalyst.In the engine operated machine be connected with working machine at motor, the dismounting of silencing apparatus and decomposition are more numerous and diverse.In addition, in the exhaust pathway of motor, silencing apparatus is configured in the downstream side of gas exhaust manifold, and the exhaust that has arrived silencing apparatus is to have passed through the exhaust after the gas exhaust manifold, therefore may low temperature to the degree of the oxidizing fire effect in the catalyzer reduced in silencing apparatus.
Summary of the invention
The object of the invention is to, consider the problem in the past as described above in the motor with exhaust gas purification catalyst, provide a kind of and can guarantee the compactedness of motor, normalized shape, and can easily change the motor of exhaust gas purification catalyst.
In order to achieve the above object, motor of the present invention possess cylinder cap, silencing apparatus and be folded in this cylinder cap and this silencing apparatus between gas exhaust manifold, this gas exhaust manifold comprise be formed on this cylinder cap in the exhaust entrance that is connected of relief opening and the exhaust outlet be connected with this silencing apparatus.This kind of motor has Exhaust gas purifying device, this Exhaust gas purifying device consists of this gas exhaust manifold and exhaust gas purification catalyst, and this exhaust gas purification catalyst is configured in this exhaust entrance and the inner space as exhaust passageway between this exhaust outlet of this gas exhaust manifold.
As the effect of above-mentioned motor, owing to by built-in exhaust gas purification catalyst in existing gas exhaust manifold, forming the exhaust gas purification device, therefore with the way that new Exhaust gas purifying device is set in addition, compare, can reduce the parts number of packages.In addition, due to the configuration space of the inner space that utilizes existing gas exhaust manifold as exhaust gas purification catalyst, so the boundary dimension of gas exhaust manifold can be the same with the boundary dimension in the situation that does not configure exhaust gas purification catalyst.On the other hand, silencing apparatus also need not maximize for built-in exhaust gas purification catalyst.Thereby, the boundary dimension of motor integral body, shape can be held in to size, the shape under the state that exhaust gas purification catalyst is not set.
In addition, about the maintainability of exhaust gas purification catalyst, without the dismounting for catalyst changeout more, silencing apparatus separately.In the situation that make the exhaust gas purification catalyst of the inside of gas exhaust manifold and this gas exhaust manifold can not be dividually integrated and form Exhaust gas purifying device, need to be by the Exhaust gas purifying device of Exhaust gas purifying device integral replacing Cheng Xin, but the housing due to the little a lot of gas exhaust manifold as engine components formation Exhaust gas purifying device such as the vibration than silencing apparatus etc. itself, therefore only carry out the dismounting operation of gas exhaust manifold with respect to cylinder cap and silencing apparatus, just can complete the replacing operation of Exhaust gas purifying device.In addition, see below, when the structure adopted with respect to gas exhaust manifold energy dismounting exhaust gas purification catalyst, can keep gas exhaust manifold is folded in to state between cylinder cap and silencing apparatus unchangeably, only change exhaust gas purification catalyst.Like this, the Exhaust gas purifying device of motor of the present invention can improve the maintainability of exhaust gas purification catalyst.
In addition, about the exhaust gas purification effect, with above-mentioned, at the silencing apparatus that is built-in with exhaust gas purification catalyst in the past, compare like that, dispose exhaust gas purification catalyst in inner space due to the gas exhaust manifold of the upstream side in exhaust air flow, therefore in the moment that arrives exhaust gas purification catalyst, the heat of exhaust keeps quite high temperature, utilizes the oxidizing fire effect of the exhaust gas heat promotion exhaust gas purification catalyst of this high temperature, improves the exhaust gas purification effect, is the minimizing effect of exhaust emission.
In the first form of above-mentioned motor, another exhaust gas purification catalyst of configuration in the above-mentioned inner space of the above-mentioned gas exhaust manifold of the above-mentioned exhaust passageway of conduct in above-mentioned Exhaust gas purifying device, to be arranged in the exhaust gas purification catalyst of upstream side of exhaust air flow of this exhaust passageway in above-mentioned exhaust gas purification catalyst and this another exhaust gas purification catalyst as a catalyzer, using the exhaust gas purification catalyst in downstream side as the quadric catalysis agent.
Like this, in this first form, this another exhaust gas purification catalyst also is configured in the inner space of gas exhaust manifold, therefore the size of gas exhaust manifold, shape are remained to existing size, shape invariance, the compactedness that can keep motor, also can avoid making complex-shapedization of motor integral body.And, in the exhaust passageway in this gas exhaust manifold, exhaust is divided into two stages by catalyzer and quadric catalysis agent and purifies, and therefore can improve purifying property.
In above-mentioned first form of above-mentioned motor, make an above-mentioned catalyzer with respect to above-mentioned gas exhaust manifold handling freely.
Why making like this catalyzer with respect to the gas exhaust manifold handling freely, is shorter than quadric catalysis agent because be exposed to the life-span of a catalyzer in the exhaust that temperature is higher, and the replacement frequency of a catalyzer is higher than the replacement frequency of quadric catalysis agent.That is,, by with respect to a catalyzer of gas exhaust manifold handling, changing catalyzer one time, therefore need to when a catalyzer of each replacing, not carry out the numerous and diverse operation with respect to cylinder cap, silencing apparatus dismounting gas exhaust manifold.In addition, if can not load and unload catalyzer one time with respect to gas exhaust manifold,, when needs are changed a catalyzer, need to change whole Exhaust gas purifying device, the life-span than catalyzer, grow and also effective quadric catalysis agent also must change.In the present invention, by making a catalyzer with respect to the gas exhaust manifold handling freely, also can avoid changing in vain as described above the quadric catalysis agent.
In the second form of above-mentioned motor, side opening at above-mentioned gas exhaust manifold is provided with insert port, by the first end by above-mentioned exhaust gas purification catalyst, via this insert port, be inserted in this gas exhaust manifold, this exhaust gas purification catalyst is configured in this gas exhaust manifold, the second end in the side contrary with this first end of this exhaust gas purification catalyst is fixed with lid, and this lid is arranged on the outer surface of this gas exhaust manifold with sealing this insert port.
Like this, in this second form, exhaust gas purification catalyst forms as cartridge (cartridge), only by via this insert port, this first end being inserted in gas exhaust manifold, then this lid is arranged on the outer surface of gas exhaust manifold, just can simply exhaust gas purification catalyst be assemblied in gas exhaust manifold, the lid of outside that only makes in addition to be configured in gas exhaust manifold is mobile away from insert port ground, just can simply exhaust gas purification catalyst be extracted and unload from gas exhaust manifold from this insert port.That is, need not just can change exhaust gas purification catalyst with respect to cylinder cap and silencing apparatus handling gas exhaust manifold, therefore can improve the maintainability of exhaust gas purification catalyst.
In above-mentioned second form of above-mentioned motor, the above-mentioned first end of above-mentioned exhaust gas purification catalyst is the shape be complementary with above-mentioned relief opening, by the above-mentioned exhaust entrance via above-mentioned gas exhaust manifold is inserted in this relief opening by this first end, this exhaust gas purification catalyst is supported on to this cylinder cap.
Like this, by gas exhaust manifold as the inner space of exhaust passageway in configure exhaust gas purification catalyst on delivery temperature position the most, can at utmost bring into play the purifying ability (oxidability) of exhaust gas purification catalyst, promote the minimizing effect of exhaust emission.And, the lid fixedly be located on the second end of exhaust gas purification catalyst is arranged on the outer surface of gas exhaust manifold, on the other hand by the second end of exhaust gas purification catalyst to be embedded in state support in relief opening in cylinder cap, therefore utilize the two supports exhaust gas purification catalyst of facing, can because of the vibration of motor, not make exhaust gas purification catalyst rock, or the exhaust leakage occurs.
In above-mentioned second form of above-mentioned motor, above-mentioned lid has lip part at peripheral part, and this lip part and above-mentioned gas exhaust manifold all are anchored on above-mentioned cylinder cap.
Thus, can load and unload integratedly gas exhaust manifold and exhaust gas purification catalyst with respect to cylinder cap, improve maintainability.; the lip part that is fixedly installed on the lid on exhaust gas purification catalyst is anchored on to the double terminal operation to cylinder cap that carries out gas exhaust manifold of an operation of cylinder cap; on the other hand, utilize to remove the fastening operation to cylinder cap of this lip part, also can remove fastening to cylinder cap of gas exhaust manifold.Like this, can reduce operation quantity for Exhaust gas purifying device is connected with cylinder cap and for unload the operation quantity of Exhaust gas purifying device from cylinder cap.
In the 3rd form of above-mentioned motor, above-mentioned gas exhaust manifold has at least two housing structures, these at least two housing structures are engaged with each other by the parallel face of flow direction of exhaust gases in the above-mentioned exhaust passageway of the inner space with as this gas exhaust manifold, dispose the maintenance guide on the internal surface of this gas exhaust manifold, this maintenance guide, for when these at least two housing structures are engaged with each other, is located this exhaust gas purification catalyst.
Like this, in the 3rd form, when the joint operation of carrying out these at least two housing structures, can utilize and keep guide to keep this exhaust gas purification catalyst at the assigned position location exhaust gas purification catalyst of gas exhaust manifold inside, make the facilitation of the assembling to gas exhaust manifold of exhaust gas purification catalyst.In addition, when these at least two housing structures can be separated, utilize housing structure separately, can easily unload by the exhaust gas purification catalyst that keeps guide to keep, new exhaust gas purification catalyst can be assembled to gas exhaust manifold simply in above-mentioned technique.
In the 4th form of above-mentioned motor, periphery at above-mentioned exhaust gas purification catalyst is fixed with the catalyzer flange, the rectangular parting plane of flow direction of exhaust gases in the above-mentioned exhaust passageway of the inside of above-mentioned gas exhaust manifold utilization and this gas exhaust manifold, can be separated into two housing structures, the end periphery of facing with this parting plane at this housing structure respectively is formed with the housing flange, by this catalyzer flange of clamping between two these housing flanges, this exhaust gas purification catalyst is fixed in this gas exhaust manifold.
Like this, in the 4th form, by the housing flange by two housing structures, be separated from each other, can decompose gas exhaust manifold, can easily load and unload exhaust gas purification catalyst, improve maintainability.In addition, by the catalyzer flange that is configured to one with exhaust gas purification catalyst is set between the housing flange at two housing structures, can prevent the clearance leakage of exhaust between the housing flange.
In the 5th form of above-mentioned motor, above-mentioned exhaust gas purification catalyst has thermoinsulation material in periphery.
Like this, in the 5th form, by utilizing the gap between thermoinsulation material landfill gas exhaust manifold and exhaust gas purification catalyst, suppress the decline of the temperature of exhaust gas purification catalyst, thereby can farthest bring into play the exhaust gas purification ability of exhaust gas purification catalyst, improve the minimizing effect of exhaust emission.
The accompanying drawing explanation
Fig. 1 means the plan view of structure of the Exhaust gas purifying device of the first mode of execution of the present invention.
Fig. 2 is the A-A sectional view in Fig. 1.
Fig. 3 is the B-B sectional view in Fig. 1.
Fig. 4 means the plan view of structure of the Exhaust gas purifying device of the second mode of execution of the present invention.
Fig. 5 means the plan view of structure of the Exhaust gas purifying device of the second mode of execution of the present invention.
Fig. 6 is the C-C sectional drawing in Fig. 4.
Fig. 7 means the plan view of structure of the Exhaust gas purifying device of the 3rd mode of execution of the present invention.
Fig. 8 means the plan view of structure of the Exhaust gas purifying device of the 3rd mode of execution of the present invention.
Fig. 9 is the D-D sectional view in Fig. 7.
Figure 10 means the integrally-built stereogram of the motor of embodiments of the present invention.
Figure 11 means the sectional view of internal structure of the motor of embodiments of the present invention.
Description of reference numerals
100, motor; 3, cylinder cap; 34, relief opening; 5, gas exhaust manifold; 6, silencing apparatus; 10, Exhaust gas purifying device; 105, gas exhaust manifold; 12a, exhaust entrance; 11c, exhaust outlet; 11b, insert port; 41, exhaust gas purification catalyst (catalyzer); 42, exhaust gas purification catalyst (quadric catalysis agent); 43, lid; 43a, lip part; 110, Exhaust gas purifying device; 205, gas exhaust manifold; 112a, exhaust entrance; 111c, exhaust outlet; 111b, insert port; 20, catalyst structure; 21, lid; 23, exhaust gas purification catalyst; 210, Exhaust gas purifying device; 305, gas exhaust manifold; 81, upstream housing; 81a, insert port; 71, housing flange; 82, downstream housing; 72, housing flange; 120, catalyst structure; 23, exhaust gas purification catalyst; 126, catalyzer flange.
Embodiment
About the overall structure of the motor of one embodiment of the present invention, use Figure 10 and Figure 11 to illustrate that single cylinder diesel engine of air-cooled type is mode of execution.In addition, in the following description, by the direction setting of the arrow F in figure, be " the place ahead ", set left and right side and rear towards this ground, the place ahead.Hollow arrow in figure means that thick arrow means the flow direction of exhaust to the assembly direction of gas exhaust manifold 5 assembling exhaust gas purification catalysts and its associated components.
The main structure of the main body of motor 100 is: bottom is configured to crankcase 1, and top is configured to the cylinder body 2 that is formed with cylinder 2a in inside, and this external this cylinder body 2 is provided with cylinder cap 3.Central authorities in cylinder body 2 form cylinder 2a along the vertical direction, in this cylinder 2a, have taken in piston 4.
The chamber that will be surrounded by cylinder 2a, piston 4 and cylinder cap 3 is as firing chamber, and the cylinder cap 3 above cylinder 2a is interior can dispose suction valve 31 and outlet valve 32 along the vertical direction slidably, disposes nozzle (omitting diagram) on the side of suction valve 31.The inside of the cylinder cap 3 above cylinder 2a is formed with suction port 33 and relief opening 34, can utilize suction valve 31 to open and close suction port 33 with respect to firing chamber, can utilize outlet valve 32 to open and close relief opening 34 with respect to firing chamber.Suction port 33 is connected with air-strainer 8 via intake manifold 8a.Relief opening 34 is connected with silencing apparatus 6 via gas exhaust manifold 5.
In the periphery of cylinder cap 3, dispose forwardly gas exhaust manifold 5, dispose silencing apparatus 6 in a side (being right side in the present embodiment), dispose fuel tank 7 at opposite side (being left side in the present embodiment), dispose in the wings air-strainer 8.There is exhaust entrance in an end of gas exhaust manifold 5 (being left part in the present embodiment), there is exhaust outlet in the other end of gas exhaust manifold 5 (being right part in the present embodiment), make this end be connected with cylinder cap 3 and this exhaust entrance is connected with above-mentioned suction port 34, make this other end be connected and this exhaust outlet is connected with in this silencing apparatus 6 with this silencing apparatus 6, thereby make the exhaust exhaust passageway mobile to this exhaust outlet from this exhaust entrance in the interior formation of this gas exhaust manifold 5.In the motor 100 of present embodiment, the flow direction that makes the exhaust in this gas exhaust manifold 5 is that left and right directions configures relief opening 34, this gas exhaust manifold 5 and this silencing apparatus 6 in this cylinder cap 3 (towards the right side).The temperature of the exhaust of high temperature is descended, and, to relief opening 34, gas exhaust manifold 5 and silencing apparatus 6 these exhausts of guiding, this exhaust is discharged in atmosphere via outlet pipe from silencing apparatus 6.
Next, use Fig. 1 to Fig. 3 that the structure of the Exhaust gas purifying device 10 of the first mode of execution is described.Exhaust gas purifying device 10 is mainly by gas exhaust manifold 105 be configured in forming with catalyzer 41 and the quadric catalysis agent 42 of oxidation catalyst as exhaust gas purification in this gas exhaust manifold 105.Gas exhaust manifold 105 has the basic structure as above-mentioned gas exhaust manifold 5, using the inner space of gas exhaust manifold 105 as for the exhaust passageway to silencing apparatus 6 directing exhaust gas from relief opening 34, and be also used as the housing of the exhaust gas purification catalyst 41,42 in Exhaust gas purifying device 10.In gas exhaust manifold 105, be formed in as described above in the exhaust passageway between exhaust entrance and exhaust outlet, a catalyzer 41 is configured in the upstream side (exhaust entrance side) of the flow direction of exhaust, and quadric catalysis agent 42 is configured in the downstream side (exhaust outlet side) of the flow direction of exhaust.
The catalyst body of catalyzer 41 and quadric catalysis agent 42 is monolithic substrates that the pottery such by steinheilite forms, in order to increase their specific surface area, the polygonal cross section that the partition wall that makes catalyzer 41 and quadric catalysis agent 42 have the Porous of the clathrate utilized or honeycomb shape is separated.The entrance and exit that alternately seals exhaust by many through holes being formed parallel to each other forms above-mentioned partition wall.And this partition wall load has the catalytic metals such as platinum, therefore there is the oxidation catalysis function.
In addition, the material of monolithic substrate adopts steinheilite in the present embodiment, but is not particularly limited, and also can adopt silicon carbide or stainless steel etc.In addition, as long as the structure of catalyst body forms the structure for increasing specific surface area, can be also for example the net ring (mesh ring) that disposes many cancellate sheet metal dividers.In addition, as catalytic metal, adopt in the present embodiment platinum, but this also is not particularly limited, also can adopts other metals such as palladium, rhodium, iridium, or also can combine various metals as catalytic metal.
Catalyzer 41 of above-mentioned such structure and quadric catalysis agent 42 utilize the partition wall of Porous to catch the PM(suspended particulate matter in exhaust).Meanwhile, catalyzer 41 and quadric catalysis agent 42 utilize the carrier of above-mentioned catalytic metal, and the nitrous oxide in the oxidation exhaust (NO), carbon monoxide (CO) and hydrocarbon (HC) etc. generate carbon dioxide, water and nitrogen dioxide NO
2deng.Then, utilize the NO that generate in a large number under the effect of catalytic metal in exhaust
2deng the oxidability had and the high temperature of the exhaust that produced by the side of relief opening 34, by the above-mentioned PM continuity ground oxidation trapped and the removal of burning.
In addition, the shape of gas exhaust manifold 105 does not limit, and integral body can be square tube shape, the forming shape that is easy to such as cylindric.In addition, also can be by with two dividing members of the connections such as bolt, forming each other the gas exhaust manifold that can separate.In addition, also can form gas exhaust manifold by the dividing member engaged more than three, in addition, make gas exhaust manifold with also can being separated into dividing member more than three.
The first housing structure 11 is the members that form the front portion of gas exhaust manifold 105, and what form above-mentioned gas exhaust manifold 105 is the circular-arc part (analysing and observe the part that is roughly the C font) in the peripheral cross-section of D font roughly from the side.Specifically, the first housing structure 11 integral body are analysed and observe to look from side and are comprised upper end portion and underpart and the planar front end of vertical that level parallel to each other is planar, part between the planar front end of the upper end portion that level is planar and vertical is circular-arc extension setting, and the part between the planar front end of the underpart that level is planar and vertical is circular-arc extension setting.The first housing structure 11 with axial direction, become motor 100 left and right directions be configured in the place ahead of cylinder cap 3.
The left and right of the first housing structure 11 part midway is seen as rectangle from front, has the top and bottom of left and right horizontal.This left and right part midway sees below, for keeping quadric catalysis agent 42.The left part of the first housing structure 11 (from front, being seen as right part) sealing, the left front section on the side, left part of the first housing structure 11, see from front with relief opening 34 and be formed with alignedly insert port 11b.This insert port 11b sees below, in gas exhaust manifold 105 that a catalyzer 41 is packed into.The extension of the first housing structure 11 is arranged on the above-mentioned part of rectangle and the part between above-mentioned left part (from front, being seen as right part) of being seen as from front, comprise the underpart of He Xiang upper right, upper end portion (from front, the being seen as upper left side) inclination that below (from front, being seen as lower right) tilts left, this part is looked from front and is formed to the such shape of relief opening 34 constrictions.
Rear end at the first housing structure 11, the peripheral portion of the part of the upper end portion of the above-mentioned part that is seen as rectangle from front and underpart and the above-mentioned shape that is seen as constriction from front is as lip part 11a, form highlightedly laterally vertical tabular, the ear end face surrounded by this lip part 11a of the first housing structure 11 is uncovered.The left part (being seen as the right side part from front) of the encirclement insert port 11b of this lip part 11a expansion offers bolt hole 63,63 from this insert port 11b sky on the left part of having expanded at this with opening predetermined distance.
In addition, Fig. 5 with reference to the gas exhaust manifold 205 that means the second mode of execution described later, the first housing structure 11(is equivalent to the first housing structure 111 of Fig. 5) front end, extend and be arranged on the above-mentioned upper end that is seen as the part of rectangle from front of being formed on of the first housing structure 11, the lip part 11a(of lower end is equivalent to the lip part 111a of Fig. 5) the right side (be seen as from front left side) of right-hand member (from front, being seen as left end), be formed with to overlook between the right-hand member (from front, being seen as left end) of the front end of this first housing structure 11 and this lip part 11a and be seen as skewed right part (from front, being seen as left part).Like this, the first housing structure 11 (is seen as left part from front) in right part to have to the open end of oblique rear inclination, sees below, and using this open end as gas exhaust manifold, 105 exhaust outlet 11c(is equivalent to the exhaust outlet 111c of Fig. 5).Above-mentioned the overlooking of the first housing structure 11 is seen as to skewed right part (from front, being seen as left part) and is inserted in silencing apparatus 6 via the insert port 6a of the left surface that is opened in silencing apparatus 6 (from front, being seen as right flank), thus exhaust outlet 11c is configured in silencing apparatus 6.
The second housing structure 12, along the configuration of the front surface of cylinder cap 3, is the tabular member that forms the rearward end of gas exhaust manifold 105, and what form above-mentioned gas exhaust manifold 105 is the vertical wire section in the peripheral cross-section of D font roughly from the side.In other words, the front-end face of the vertical shape of the second housing structure 12 is configured for the mating face engaged with the first housing structure 11, the mating face that the first housing structure 11 and the second housing structure 12 configure abreast by the flow direction of exhaust gases in the inner space of the gas exhaust manifold 105 with as exhaust passageway and being engaged with each other, form gas exhaust manifold 105.
The shape of seeing from front of the second housing structure 12 is consistent with the shape of seeing from front except being configured in the interior above-mentioned right part (from front, being seen as left part) of silencing apparatus 6 of the first housing structure 11, and the lip part 11a front-back of the periphery edge of the second housing structure 12 and said first shell member 11 is overlapping over the ground.In addition, the expansion of periphery edge, the left side of the second housing structure 12 (from front, being seen as the right side), form the left part roughly the same shape of having seen from front with the above-mentioned expansion of the first housing structure 11, the periphery edge of having expanded at this, from front, see can with the bolt hole 63,63 of above-mentioned lip part 11a alignedly, be formed with bolt hole 62,62.And, see the left part (being seen as the right side part from front) at the second housing structure 12 surrounded by periphery edge, this left side (from front, being seen as the right side) from front, be formed with and see the opening that can align with above-mentioned relief opening 34 and above-mentioned insert port 11b, 105 the exhaust entrance 12a using this opening as gas exhaust manifold from front.
Like this, under the state that bolt hole 63 is alignd with bolt hole 62, the periphery edge that makes lip part 11a and the second housing structure 12 is superimposed and utilize welding joint, thus make the first housing structure 11 and the second housing structure 12 integrated each other, form gas exhaust manifold 105.In addition, also can weld, but utilize the bolton mode to come the lip part 11a of fastening the first housing structure 11 and the periphery edge of the second housing structure 12, thereby can by as mentioned above with gas exhaust manifold 105 in (front-end face that is equivalent to this second housing structure 12) mating face of configuring abreast of the flow direction of exhaust separate the first housing structure 11 and the second housing structure 12.
The above-mentioned exhaust entrance 12a be formed at like that on the second housing structure 12 is in order to make exhaust be configured in the hole of left back (being seen as right back section from front) of gas exhaust manifold 105 from being formed on relief openings 34 in cylinder cap 3 and flowing in gas exhaust manifold 105.Exhaust entrance 12a forms the shape roughly the same with the opening shape of seeing from front (in the present embodiment for circular) of above-mentioned relief opening 34, and from front, exhaust entrance 12a is formed on the position that can roughly align with relief opening 34.
The above-mentioned insert port 11b that is formed at like that the first housing structure 11 is configured in the hole of the side (front surface) of gas exhaust manifold 105 for the taking-up of a catalyzer 41 is put into.Insert port 11b is the opening of the roughly the same shape of the shape of seeing from front with relief opening 34 and exhaust entrance 12a (in the present embodiment for circular), and insert port 11b sees and is formed on the position that can roughly align with relief opening 34 and exhaust entrance 12a from front.
The above-mentioned exhaust outlet 11c that is formed at like that the first housing structure 11 is in order to make the exhaust of having passed through quadric catalysis agent 42 flow out to the hole that is configured in the right part (from front, being seen as left part) of gas exhaust manifold 105 in silencing apparatus 6 from gas exhaust manifold 105, like that the right part of gas exhaust manifold 105 is inserted in silencing apparatus 6 via insert port 6a by above-mentioned, this exhaust outlet 11c is configured in silencing apparatus 6.
The part that is seen as rectangle from front of said first shell member 11 and the second housing structure 12 is the parts of taking in the quadric catalysis agent 42 gas exhaust manifold 105.Dispose a plurality of (being in the present embodiment 8) and keep guide 51 in gas exhaust manifold 105, to keep quadric catalysis agent 42.Keeping guide 51 is from the outstanding tab arranged of each housing structure 11,12, can form with each housing structure 11,12, also can by with each housing structure 11,12 respectively independently member be fixed at each housing structure 11,12 and form.4 keep the mode of guide 51 with the left and right both ends of the surface butt of the front portion with being configured in the quadric catalysis agent 42 in gas exhaust manifold 105, open predetermined distance ground along left and right directions and above-below direction sky each other from the vertical front end of the first housing structure 11 and rearward give prominence to.On the other hand, 4 holding part materials 51 are in the mode of the left and right both ends of the surface butt at the rear portion with being configured in the quadric catalysis agent 42 in gas exhaust manifold 105, open predetermined distance ground from the second housing structure 12 along left and right directions and above-below direction sky and forwards give prominence to.Like this, on the internal surface of the first housing structure 11 of facing in the inner space as exhaust passageway with gas exhaust manifold 105 and the internal surface of the second housing structure 12, can be provided with maintenance guide 51,51...... to the quadric catalysis agent 42 be configured in gas exhaust manifold 105 with keeping.
In the present embodiment, 44 the maintenance guides 51 keeping guide 51 and from second housing structure 12 give prominence to outstanding from the first housing structure 11 are seen configuration alignedly from front, but also can from taking a fancy to, front configure the maintenance guide 51 of the first housing structure 11 and the maintenance guide 51 of the second housing structure 12 with staggering, in addition, keep the quantity of guide 51 also not limit.According to size, the shape of quadric catalysis agent 42, can keep preferably these quadric catalysis agent 42 ground to set and keep configuration mode, the quantity of guide 51 to get final product.
Below, illustrate to catalyzer 41 and the quadric catalysis agent 42 of packing in gas exhaust manifold 105.
One time catalyzer 41 is cylindric, forms and can be inlaid in insert port 11b, exhaust entrance 12a and relief opening 34.Thereby, form the size (diameter of rounded face) of a catalyzer 41 according to the size (being seen as the diameter of circular open from front) of relief opening 34, exhaust entrance 12a and insert port 11b.
Be fixed with lid 43 on an end face (front-end face) of a catalyzer 41.The other end (ear end face) that catalyzer 41 will be fixed with a side contrary with this end face (front-end face) of this lid 43 is inserted in gas exhaust manifold 105 via above-mentioned insert port 11b, thereby is configured in the inner space of the above-mentioned exhaust passageway of conduct of this gas exhaust manifold 105.This other end (rearward end) of a catalyzer 41 is embedded in relief opening 34 via exhaust entrance 12a.Thereby this other end (rearward end) of a catalyzer 41 is supported on cylinder cap 3.
Above-mentioned lid 43 forms insert port 11b and the insert port 11b part on every side that covers the first housing structure 11.On the left side of lid 43 (from front, being seen as the right side), periphery is formed with lip part 43a.On lip part 43a to see that from front the mode of aliging with the bolt hole 63,62 of gas exhaust manifold 105 respectively is formed with bolt hole 64,64.The mode of aliging with the bolt hole 63,62 of seeing the gas exhaust manifold 105 be connected with this cylinder cap 3 respectively from front on cylinder cap 3 in addition, is formed with bolt hole 61,61.
In the above-mentioned left part (from front, being seen as right part) by gas exhaust manifold 105, be configured in the state in cylinder cap 3 the place aheads, above-mentionedly like that a catalyzer 41 is inserted in gas exhaust manifold 105 via insert port 11b and exhaust entrance 12a, while making the rearward end of a catalyzer 41 be embedded in relief opening 34, lid 43 is arranged on gas exhaust manifold 105(the first housing structure 11 with naturally sealing this insert port 11b) outer surface on, the bolt hole 64 of lip part 43a and the bolt hole 63 of gas exhaust manifold 105, 62 alignment, and via this bolt hole 63, 62 also align with the bolt hole 61 of cylinder cap 3.Make like this each bolt hole 61,62,63,64 configuration gas exhaust manifold 105 on the front outer surface of cylinder cap 3 alignedly, outer surface configuration lid 43 side of the left side of gas exhaust manifold 5 (from front, being seen as the right side).In addition, at front outer surface and gas exhaust manifold 105(second housing structure 12 of cylinder cap 3) ear end face between and gas exhaust manifold 105(the first housing structure 11) front outer surface and lid 43 between clamping packing ring (omitting diagram) is arranged.Under this state, by each bolt 65 being screwed in the bolt hole 61,62,63,64 of alignment, by the lid of a catalyzer 41 43 and gas exhaust manifold 105(housing structure 11,12) fastening being fixed on cylinder cap 3 in the lump.That is, to the operation and lid 43 terminal operation fastening to cylinder cap 3 is double carries out the connection operation of gas exhaust manifold 105 to cylinder cap 3 of packing into of the catalyzer 41 of packing in gas exhaust manifold 105.
Be enclosed in like this catalyzer 41 in gas exhaust manifold 105, be supported on cylinder cap 3 with the rearward end be embedded in as mentioned above in relief opening 34, on the other hand, front end is via lid 43 and the fastening cylinder cap 3 that is fixed in of gas exhaust manifold 105, therefore avoid rocking by the generation of vibration of motor 100, thereby the leakage of exhaust can not occur, so guarantee good exhaust gas purification efficiency.And, spread all over the partly configuration on the exhaust entrance 12a side in the exhaust passageway in relief opening 34, exhaust entrance 12a and this gas exhaust manifold 105, the exhaust that flow into the high heat in this exhaust passageway from relief opening 34 via exhaust entrance 12a is carried out to purified treatment.
For quadric catalysis agent 42 is encased in gas exhaust manifold 105, before engaging the first housing structure 11 and the second housing structure 12, under the state of maintenance guide 51 butts of the left and right both ends of the surface that make quadric catalysis agent 42 and the first housing structure 11, quadric catalysis agent 42 is held in to this housing structure 11 or housing structure 12.Now, in the first housing structure 11, thermoinsulation material 25 is installed around quadric catalysis agent 42.Then, cover quadric catalysis agent 42 and thermoinsulation material 25 ground in the first housing structure 11, the second housing structure 12 is covered in to the first housing structure 11, thus the maintenance guide 51 that makes the second housing structure 12 also naturally with the left and right both ends of the surface butt of quadric catalysis agent 42.And utilization engages the periphery edge of lip part 11a and second housing structure 12 of the first housing structure 11 as described above, is keeping the state of quadric catalysis agent 42 to complete this operation of packing in inside with gas exhaust manifold 105.
Be seen as skewed right part (from front, being seen as left part) and be inserted in silencing apparatus 6 by gas exhaust manifold 105 above-mentioned overlooked, exhaust outlet 11c is configured in silencing apparatus 6, and will be enclosed in (the silencing apparatus 6 outsides) exhaust passageway that is arranged in the upstream side of exhaust outlet 11c in the stream that quadric catalysis agent 42 in gas exhaust manifold 105 are arranged on exhaust.On the other hand, one time catalyzer 41 is enclosed in gas exhaust manifold 105 via insert port 11b as described above, utilizes packing into of this catalyzer 41, and the left part of gas exhaust manifold 105 (from front, being seen as right part) is fixed on cylinder cap 3.Like this, the gas exhaust manifold 105 that is built-in with catalyzer 41 and quadric catalysis agent 42 is folded between the cylinder cap 3 and silencing apparatus 6 of motor 100 as Exhaust gas purifying device 10.
In Exhaust gas purifying device 10 in being arranged on like this motor 100, the process of exhaust in the inner space that flow into gas exhaust manifold 105 from relief opening 34 via exhaust entrance 12a, at first by a catalyzer 41.In the process of having passed through to flow through in exhaust passageway that an exhaust after catalyzer 41 forms in the inner space by gas exhaust manifold 105, by quadric catalysis agent 42.After having passed through quadric catalysis agent 42, exhaust is directed in silencing apparatus 6 from exhaust outlet 11c.
One time catalyzer 41 becomes with respect to gas exhaust manifold 105 handling structure freely, therefore in the situation that the exhaust gas purification ability of Exhaust gas purifying device 10 descended, by changing catalyzer 41 one time, can recover simply the exhaust gas purification ability of Exhaust gas purifying device 10.That is, by unloading bleeder screw 65,65, make lid 43 mobile away from the outer surface ground of gas exhaust manifold 105, can extract the catalyzer 41 with this lid 43 one from insert port 11b.Unload an old catalyzer 41 from gas exhaust manifold 105 like this, simply.Then, can a new catalyzer 41 be packed in gas exhaust manifold 105 and cylinder cap 3 simply according to above-mentioned main points.
A catalyzer 41 that is configured in the upstream side of quadric catalysis agent 42 in the stream of exhaust is exposed in the exhaust of high heat, in shorter tendency of life-span, therefore from this viewpoint, make a catalyzer 41 freely be conducive to the maintenance of Exhaust gas purifying device 10 with respect to gas exhaust manifold 105 handling.On the other hand, in the Exhaust gas purifying device 10 of present embodiment, the first housing structure 11 and second housing structure 12 of quadric catalysis agent 42 soldered joints are enclosed in gas exhaust manifold 105 clampingly, therefore can not unload quadric catalysis agent 42 from gas exhaust manifold 105, but also can make Exhaust gas purifying device 10 separate, for example utilize the bolton mode to connect the first housing structure 11 and the second housing structure 12 each other, they can be separated, and that utilizes this first housing structure 11 and the second housing structure 12 separately takes out quadric catalysis agent 42.
Next, use Fig. 4 to Fig. 6 that the structure of the Exhaust gas purifying device 110 of the second mode of execution is described.The reference character that the reference character used with the first mode of execution is identical means the member identical with the member of the first mode of execution.Exhaust gas purifying device 110 mainly consists of gas exhaust manifold 205 and the exhaust gas purification catalyst (oxidation catalyst) 23 that is configured in the inside of gas exhaust manifold 205.That is, gas exhaust manifold 205 has the basic structure as above-mentioned gas exhaust manifold 5, and is also used as the housing of the exhaust gas purification catalyst 23 in Exhaust gas purifying device 110.In addition, exhaust gas purification catalyst 23 is enclosed in integratedly with respect in gas exhaust manifold 205 handling catalyst structure 20 freely.
The first housing structure 111 is the members that are equivalent to the first housing structure 11 of the first mode of execution, there is the front shape identical with this first housing structure 11 (Fig. 4 reference), lip part 111a with the lip part 11a that is equivalent to this first housing structure 11, the exhaust outlet 111c that is equivalent to exhaust outlet 11c, be equivalent to the bolt hole 63,63 of bolt hole 63,63.The second housing structure 112 is the members that are equivalent to the second housing structure 12 of the first mode of execution, there is the shape identical with this second housing structure 12, exhaust entrance 112a with the exhaust entrance 12a that is equivalent to this second housing structure, be equivalent to the bolt hole 62,62 of bolt hole 62,62.With the first housing structure 11 and the second housing structure 12 engaging in the same manner each other, along the left and right directions of motor 100, with exhaust passageway in the vertical front surface of the second housing 112 of extending abreast of the flow direction of exhaust form mating face, utilizing welding to wait makes the lip part 111a of the first housing structure 111 engage with the periphery edge of this front surface, the first housing structure 111 and the second housing structure 112 are engaged with each other by this mating face, form gas exhaust manifold 205.
In the time of in gas exhaust manifold 205 is arranged on to motor 100, same with gas exhaust manifold 105, by the right part by gas exhaust manifold 205 (from front, being seen as left part), be inserted in silencing apparatus 6, exhaust outlet 111c is configured in silencing apparatus 6.On the other hand, configure alignedly exhaust entrance 112a with relief opening 34, and the bolt hole 62,63 of gas exhaust manifold 205 is alignd with the bolt hole 61 of cylinder cap 3, bolt 65 is screwed into respectively in bolt hole 61,62,63, thereby the left part of gas exhaust manifold 205 (from front, being seen as right part) is fixed on cylinder cap 3.
The part of the vertical front-end face of the first housing structure 111 in gas exhaust manifold 205 offers insert port 111b.This is to take out for the catalyst structure described later 20 with exhaust gas purification catalyst 23 hole of putting into.In addition, as the container of taking in exhaust gas purification catalyst 23, gas exhaust manifold 205 have the maintenance quadric catalysis agent 42 be equivalent in gas exhaust manifold 105 part be seen as the part of rectangle from front, what insert port 111b was opened in this gas exhaust manifold 205 is seen as the front-end face the part of rectangle from front.
On the first housing structure 111, the 111d of mounting flange section, 111d form the peripheral end up and down at insert port 111b outstandingly to the outside of vertical roughly, at spaced apart be provided with bolt hole 111e, the 111e of left and right peripheral end to stipulate of the 111d of this mounting flange section, 111d and insert port 111b ...The front surface of the 111d of these mounting flange sections is the face along the left and right directions extension of motor 100,, the parallel face to the flow direction of the exhaust in the exhaust passageway with in gas exhaust manifold 205, these faces form the mating face engaged with the lid 21 of catalyst structure 20 described later, that is the mating face that, gas exhaust manifold 205 engages with catalyst structure 20.
Dispose the maintenance guide 13 of two up and down as the tab for keeping exhaust gas purification catalyst 23 in gas exhaust manifold 205.In the time of in the catalyst structure 20 that will have exhaust gas purification catalyst 23 is assembled to gas exhaust manifold 205, two left and right middle part butts that keep guide 13 and catalyst structure 20, the gap that landfill consists of gas exhaust manifold 205 and catalyst structure 20 and guarantee tightness, and keep in position catalyst structure 20.With reference to Fig. 5, describe in detail, in gas exhaust manifold 205, between the internal surface of the second housing structure 112 of the internal surface of the horizontal upper end portion of the first housing structure 111, underpart and vertical shape, being formed with is rectangular-shaped bight, back upper place and bight, the rear lower side from the side.On the other hand, catalyst structure 20(is specifically pillar 22 described later) the Bu He rear lower side, back upper place section from the side for circular-arc, therefore, after in catalyst structure 20 is assembled to gas exhaust manifold 205, this of catalyst structure 20 be that this of circular-arc back upper place Bu Ji rear lower side section and gas exhaust manifold 205 is residual gapped between rectangular-shaped bight, back upper place and bight, the rear lower side from the side from the side.These configure maintenance guide 13 landfills of upper and lower with gap.
That is, as shown in Figure 5, two predetermined distance ground that keep guide 13 to vacate above-below direction between the two of upper and lower, the internal surface (front surface) of the vertical shape of facing from the exhaust passageway with in gas exhaust manifold 205 of the second housing structure 112 is forwards outstanding.The lower end of the upper end of the maintenance guide 13 of upside and the maintenance guide 13 of downside is level, internal surface (lower surface) butt of the horizontal upper end portion of the upper end of the maintenance guide 13 of upside and the first housing structure 111, internal surface (upper surface) butt of the horizontal underpart of the lower end of the maintenance guide 13 of downside and the first housing structure 111.Each keeps guide 13 and catalyst structure 20(is specifically pillar 22) the Bu, rear lower side, back upper place section separately from the side for the part of circular shape accordingly, having is circular-arc front from the side.Like this, circular-arc front by making respectively to keep guide 13 respectively be encased in gas exhaust manifold 205 in the Bu He rear lower side, the back upper place section of left and right middle part of catalyst structure 20 engage, keep as mentioned above the gap between guide 13,13 landfill gas exhaust manifolds 205 and catalyst structure 20, prevent that the exhaust of passing through in the exhaust passageway in gas exhaust manifold 205 is from exhaust gas purification catalyst 23 leakages.
Next, the catalyst structure 20 be built in gas exhaust manifold 205 is described.Lid 21, pillar 22, exhaust gas purification catalyst 23, Sealing 24 and thermoinsulation material 25 are combined integratedly and form catalyst structure 20.Catalyst structure 20 can be inserted in gas exhaust manifold 205 via insert port 111b, and and be formed on the gas exhaust manifold 205 between the first housing structure 111 and the second housing structure 112 inner space shape accordingly, form the shape of catalyst structure 20.
The upper and lower lip part 22a of pillar 22 and left and right lip part 22b form the tetragonal frame shape that four limits of the front opening of pillar 22 are surrounded, on these lip parts 22a, 22b, see from front with each bolt hole 21a and offer alignedly bolt hole 22c.The front surface butt of the four Bu rear surfaces, limit by making lid 21 and lip part 22a, the 22b of pillar 22 utilizes and is welded to connect this rear surface and front surface, makes lid 21 and pillar 22 integrated.In other words, lip part 22a, the 22b of pillar 22 become the part of lid 21.Be formed on the inner space of the catalyst structure 20 between lid 21 and pillar 22, owing in gas exhaust manifold 205, being provided as exhaust passageway, therefore open along the left and right directions two ends, left and right of pillar 22 (), dispose exhaust gas purification catalyst 23 in this space.
Catalyzer 41 that exhaust gas purification catalyst 23 is used with Exhaust gas purifying device 10 is identical with the structure of quadric catalysis agent 42.That is to say, be the monolithic substrate that the pottery such by steinheilite forms, and has the oxidation catalysis function.Be enclosed in exhaust gas purification catalyst 23 in catalyst structure 20 form see it is rectangle from front, be the oval-shaped shape of growing up and down from the side.In the above-mentioned inner space of catalyst structure 20, exhaust gas purification catalyst 23 the internal surface of latter half of outer circumferential face and pillar 22 (be specifically the vertical shape rearward end interior (front) surface and be the internal surface of the circular-arc Bu, rear lower side, back upper place section from the side) butt state under install.
In addition, in the inner space of this catalyst structure 20, be filled with the thermoinsulation material 25 of glass wool etc. in the space between the internal surface of outer circumferential face, pillar 22 and the lid 21 of the first half of exhaust gas purification catalyst 23.Thus, prevent that the exhaust gas purification catalyst 23 of exhaust self-configuring in this space passed through from leaking in the inner space of this catalyst structure 20 as exhaust passageway, in addition, utilize the heat insulating function of thermoinsulation material 25 to keep the temperature of exhaust, therefore make the exhaust gas purification effect of exhaust gas purification catalyst 23 stable.
The left and right open at both ends of the pillar 22 engaged with lid 21, therefore can exhaust gas purification catalyst 23 and thermoinsulation material 25 be encased in the inner space of catalyst structure 20 via this opening, and exhaust gas purification catalyst 23 and thermoinsulation material 25 are extracted in this inner space certainly.Perhaps also can be in advance in the pillar 22 with before lid 21 engages, exhaust gas purification catalyst 23 and thermoinsulation material 25 be installed as described above, then cover lip part 22a, 22b butt that thermoinsulation material 25 ground make lid 21 and pillar 22, by lid 21 and lip part 22a, 22b welding joint.
On the outer circumferential face of the pillar 22 of catalyst structure 20, Sealing 24 is installed integratedly.Catalyst structure 20 is being arranged on to gas exhaust manifold 205 when interior, Sealing 24 inserts and is arranged between the internal surface of pillar 22 and gas exhaust manifold 205.; the outer circumferential face of pillar 22 (upper-end surface, lower end surface and ear end face) across the internal surface of Sealing 24 and upper end portion, underpart and the rearward end of gas exhaust manifold 205 (; the internal surface of the upper end portion of the first housing structure 111, the internal surface of underpart and the second housing structure 112) butt; in addition, the left and right middle part of pillar 22 to be the circular-arc Bu He rear lower side, back upper place section from the side keep guide 13 butts across Sealing 24 and two.Utilize the seal 24 and above-mentioned maintenance guide 13, the gap between the outer circumferential face of the pillar 22 of closed catalyst structural member 20 and the internal surface of gas exhaust manifold 250.Thus, the exhaust in exhaust entrance 12a imports to gas exhaust manifold 205, without importing in the above-mentioned inner space between pillar 22 and lid 21, must be passed through exhaust gas purification catalyst 23 with leaking, therefore improves exhaust gas purification efficiency.
In addition, between the front surface of the 111d of mounting flange section of the rear surface of lip part 22a, the 22b of the pillar 22 engaged with lid 21 and gas exhaust manifold 205, packing ring 26 is installed.Look and form alignedly the profile of packing ring 26 with lip part 22a, 22b in front.Be formed with bolt hole 26a alignedly on this packing ring 26 with the bolt hole 21a of lid 21 and the bolt hole 22c of lip part 22a, 22b respectively.
Next illustrate catalyst structure 20 is arranged on to the process in gas exhaust manifold 205.Between catalyst structure 20 and gas exhaust manifold 205, be provided with under the state of packing ring 26, opening and insert port 111b via this packing ring 26, be inserted into the pillar that Sealing 24 is installed 22 of catalyst structure 20 in gas exhaust manifold 205.Then further make catalyst structure 20 rearward, when moving with respect to the rectangular direction of the exhaust air flow in gas exhaust manifold 205, soon the Bu He rear lower side, the back upper place section of this pillar 22 across Sealing 24 with keep guide 13,13 butts, and the ear end face of pillar 22 is across internal surface (front surface) butt of Sealing 24 and the second housing structure 112.Now, lid 21 sealing insert port 111b, lip part 22a, the 22b engaged with the ear end face of lid 21 is naturally across packing ring 26 and the 111d of mounting flange section butt, and the bolt hole 21a of lid 21 and the bolt hole 22c of lip part 22a, 22b align with each bolt hole 26a of packing ring 26 and each bolt hole 111e of the 111d of mounting flange section.Be screwed into bolt 27 in each bolt hole 21a alignd, 22c, 26a, 111e, utilize these bolts 27 by lid 21(and lip part 22a, 22b) and packing ring 26 be fastened in the lump on the 111d of mounting flange section of gas exhaust manifold 205, thereby complete the installation of catalyst structure 20 to gas exhaust manifold 205, that is, complete the assembling of Exhaust gas purifying device 110.
In gas exhaust manifold 205, installing like this under the state of catalyst structure 20, in gas exhaust manifold 205, utilize the gap between the internal surface that keeps guide 13 and Sealing 24 closed catalyst structural members 20 and gas exhaust manifold 205, in addition, in the inner space of catalyst structure 20, utilize the gap between thermoinsulation material 25 closure body 21 and pillar 22 and exhaust gas purification catalyst 23, in addition, outside at gas exhaust manifold 205, utilizing the 111d of mounting flange section of packing ring 26 sealing gas exhaust manifolds 205 and the lid 21(of catalyst structure 20 is specifically the lip part 22a of pillar 22, gap 22b).Utilize the tightness of this kind of Exhaust gas purifying device 110, from exhaust entrance 112a, import to as the exhaust in the inner space of the gas exhaust manifold 205 of exhaust passageway, after without leakage ground, passing through exhaust gas purification catalyst 23, flow to silencing apparatus 6 via exhaust outlet 111c, therefore guarantee higher exhaust gas purification efficiency.
In the situation that the exhaust gas purification ability of Exhaust gas purifying device 110 has descended, unload all bolts 27, the mating face that lid 21 gas exhaust manifold 205 above-mentioned with the 111d(of mounting flange section from packing ring 26 engaged with catalyst structure 20) separate, thereby can unload catalyst structure 20 from gas exhaust manifold 205 simply.For the catalyst structure 20 unloaded, the exhaust gas purification catalyst 23 that will wear via the opening of left and right one end of pillar 22 is extracted, via this opening, new exhaust gas purification catalyst 23 is arranged in pillar 22, thereby can forms again the catalyst structure 20 that can be arranged in gas exhaust manifold 205.Perhaps also catalyst structure 20 itself can be replaced with to new catalyst structure.Like this, by the catalyst structure 20 that will there is new exhaust gas purification catalyst 23, be arranged in gas exhaust manifold 205, can recover the exhaust gas purification ability of Exhaust gas purifying device 110.
As mentioned above, in the catalyst structure 20 that is installed on gas exhaust manifold 205, the lid 21(of sealing insert port 111b comprises lip part 22a, 22b) become the housing structure as the part of gas exhaust manifold 205, the above-mentioned mating face parallel by the exhaust air flow with in gas exhaust manifold 205 engages with the first housing structure 111, in addition, by unloading bolt 27, can make lid 21 separate from the first housing structure 111 by this mating face.To make lid 21(be specifically lip part 22a, 22b) and the first housing structure 111 while engaging by this mating face, be configured in the maintenance guide 13 location exhaust gas purification catalysts 23 on the internal surface of gas exhaust manifold 205.
In addition, in the gas exhaust manifold 205 of the Exhaust gas purifying device 110 of the second mode of execution, be configured in the interior position of gas exhaust manifold 105 similarly with the quadric catalysis agent 42 of Exhaust gas purifying device 10, near configuration exhaust gas purification catalyst 23 on the position of exhaust outlet 111c, do not dispose one time on the other hand the such exhaust gas purification catalyst of catalyzer 41 at exhaust entrance 112a place.But, also can form in the same manner with the structure around the exhaust entrance 12a of gas exhaust manifold 105 structure around the exhaust entrance 112a of gas exhaust manifold 205, exhaust gas purification catalyst that will be same with catalyzer 41 is arranged on exhaust entrance 112a place.Thus, in Exhaust gas purifying device 110, also can, in the interior configuration of gas exhaust manifold 205 as the exhaust gas purification catalyst of a catalyzer with as the exhaust gas purification catalyst 23 of quadric catalysis agent, can improve the exhaust gas purification effect.In addition, because catalyst structure 20 loads and unloads freely with respect to gas exhaust manifold 205, therefore by making a catalyzer with respect to gas exhaust manifold 205 handling freely, can make catalyzer and quadric catalysis agent all can with respect to gas exhaust manifold 205 handling freely, improve maintainability.In addition, also can will be positioned at a catalyzer of upstream side as the DOC(used for diesel engine oxidation catalyst with oxidation catalysis function on the flow direction of exhaust), the exhaust gas purification catalyst that becomes the quadric catalysis agent 23 that will on the flow direction of exhaust, be positioned at downstream side is made the DPF(diesel particulate filter).
Next, use Fig. 7 to Fig. 9 that the structure of the Exhaust gas purifying device 210 of the 3rd mode of execution is described.The reference character identical with the second mode of execution reference character used with the first mode of execution means the member identical with the member of the first mode of execution and the second mode of execution.Exhaust gas purifying device 210 mainly consists of gas exhaust manifold 305 and the exhaust gas purification catalyst (oxidation catalyst) 23 that is configured in the inside of gas exhaust manifold 305.That is, gas exhaust manifold 305 has the basic structure as above-mentioned gas exhaust manifold 5, and is also used as the housing of the exhaust gas purification catalyst 23 in Exhaust gas purifying device 210.In addition, exhaust gas purification catalyst 23 is enclosed in integratedly with respect in gas exhaust manifold 205 handling catalyst structure 120 freely.
Side by the insert port 6a at silencing apparatus 6, by parallel with this insert port 6a with mobile rectangular (fore-and-aft direction of motor 100) vertical mating face of exhaust, the upstream housing 81 in left side (from front, being seen as right side) is engaged with the downstream housing 82 of right side (being seen as left side from front), form the gas exhaust manifold 305 of Exhaust gas purifying device 210.That is, this each upstream housing 81 and downstream housing 82 are by engaging and form as the first housing structure 111 of the front portion of gas exhaust manifold 305 with as second housing structure 112 at the rear portion of gas exhaust manifold 305.Upstream housing 81 is configured in the upstream side of the flow direction of the exhaust produced by gas exhaust manifold 305, and is fixed on cylinder cap 3.Downstream housing 82 is configured in the downstream side of the flow direction of the exhaust produced by gas exhaust manifold 305, and is fixed on silencing apparatus 6.
In addition, in the present embodiment, in the situation that each member (each several part) has the two ends, left and right, left (from front, being seen as the right side) end is configured in the upstream side of the flow direction of the exhaust in gas exhaust manifold 305, and right (from front, being seen as a left side) end is configured in the downstream side of the flow direction of this exhaust.Below, " upstream side " end refers to a left side (from front, the being seen as the right side) end of this member (or part), " downstream side " end refers to the right side (from front, the being seen as a left side) end of this member (or part).
Be formed with the housing flange 71 of (or being fixed with) vertical shape at the downstream side that faces above-mentioned mating face of upstream housing 81, be formed with the housing flange 72 of (or being fixed with) vertical shape at the upstream side that faces this mating face of downstream housing 82.A plurality of bolt hole 71a sky from the side are opened in housing flange 71 with opening predetermined distance, and alignedly, sky is opened in housing flange 72 with opening predetermined distance from the side for a plurality of bolt hole 72a and each bolt hole 71a.
Dispose the maintenance guide 14 as the tab for keeping exhaust gas purification catalyst 23 described later in upstream housing 81.The upstream side end face butt that keeps guide 14 and exhaust gas purification catalyst 23.In the present embodiment, known according to Fig. 7 and Fig. 8, the internal surface that is provided with the front portion (i.e. the first housing structure 111) from upstream housing 81 in upstream guide 81 rearward outstanding two front sides up and down keep guides 14 and from the internal surface at the rear portion of upstream housing 81 (i.e. the second housing structure 111) forwards outstanding two rear sides up and down keep 4 the maintenance guides 14 that amount to of guides 14.Keeping guide 14 to form with each housing structure 111,112, can be also to distinguish independently member with housing structure 111,112, can also be fixed at each housing structure 111,112.
On catalyzer flange 126, offer alignedly bolt hole 126a with each bolt hole 71a of housing flange 71 and each bolt hole 72a of housing flange 72 respectively.In the present embodiment, as shown in Figure 9, in the four Ge bights, bight that are from the side the catalyzer flange 126 of essentially rectangular, be formed with bolt hole 126a.
The opening fenced up by housing flange 71 of the downstream side of upstream housing 81 is the insert port 81a that insert for exhaust catalyst for clarifying 23, on the position that can align with insert port 81a of catalyzer flange 126, is formed with opening 126b.
The outer circumferential face of exhaust gas purification catalyst 23 utilizes the thermoinsulation material 25 of glass wool etc. to cover, according to the inner space of upstream housing 81, and this thermoinsulation material 25 of moulding.Exhaust gas purification catalyst 23 is being arranged on to gas exhaust manifold 305 when interior, the outer surface of exhaust gas purification catalyst 23 and gas exhaust manifold 305(be upstream housing 81) internal surface between gap in be filled with thermoinsulation material 25.Thus, exhaust in exhaust entrance 112a imports to upstream housing 81 without importing in exhaust gas purification catalyst 23 with leaking, utilize in addition the heat insulating function of thermoinsulation material 25, the delivery temperature in exhaust gas purification catalyst 23 is remained to high temperature, promote the exhaust gas purification effect.
Exhaust gas purification catalyst 23 has structure, function and the shape identical with the exhaust gas purification catalyst 23 of Exhaust gas purifying device 110.The end of downstream side of this exhaust gas purification catalyst 23 is configured in the opening 126b of catalyzer flange 126, and is adhered to catalyzer flange 126 by the thermoinsulation material 25 on the outer circumferential face that is arranged on this exhaust gas purification catalyst 23.But, also can become the opening 126b of catalyzer flange 126 than the downstream side end face microrelief of the insert port 81a of upstream housing 81 and exhaust gas purification catalyst 23, thereby make the downstream side end face of this exhaust gas purification catalyst 23 directly be adhered to the upstream side end face of catalyzer flange 126.
Next illustrate catalyst structure 120 is arranged on to the process in gas exhaust manifold 305.Gas exhaust manifold 305 being separated under the state of upstream housing 81 and downstream housing 82, via insert port 81a, the exhaust gas purification catalyst of catalyst structure 120 23 and thermoinsulation material 25 are inserted in upstream housing 81.Then when making catalyst structure 120 further (from front, to be seen as right side) relatively to the left mobile with respect to upstream housing 81 along the flow direction of the exhaust in gas exhaust manifold 305, soon be inserted in the upstream side end face and maintenance guide 14 butts of the exhaust gas purification catalyst 23 in upstream housing 81, now, the upstream side end face of catalyzer flange 126 naturally with housing flange 71 butts.In addition, now form the state that is filled with thermoinsulation material 25 in the space between the inner peripheral surface of the outer circumferential face of exhaust gas purification catalyst 23 and upstream housing 81.
Under this state, make the housing flange 72 of downstream housing 82 and the downstream side end face butt of catalyzer flange 126, utilize housing flange 71,72 clamping catalyzer flanges 126.Now, each bolt hole 71a, 126a, 72a are in alignment with each other, bolt 27 is screwed in these bolts hole, thus fastening stationary housing flange 71,72 and catalyzer flange 126 in the lump.Thus, complete the assembling of gas exhaust manifold 305, and complete to gas exhaust manifold 305 exhaust gas purification catalyst 23 of packing into.
The gas exhaust manifold 305 that has completed like this assembling has exhaust entrance 112a, exhaust outlet 111c and bolt hole 62,63 equally with gas exhaust manifold 205.In the time of in the gas exhaust manifold 305 by Exhaust gas purifying device 210 is arranged on motor 100, with gas exhaust manifold 105,205 similarly, gas exhaust manifold 305(is specifically downstream housing 82) end of downstream side be inserted in silencing apparatus 6, thereby exhaust outlet 111c is configured in silencing apparatus 6.On the other hand, configure alignedly exhaust entrance 112a with relief opening 34, and making gas exhaust manifold 305(is specifically upstream housing 81) bolt hole 62,63 with the bolt hole 61 of cylinder cap 3, align, bolt 65 is screwed into respectively in bolt hole 61,62,63, thereby the upstream-side-end of gas exhaust manifold 305 is fixed on cylinder cap 3.
In the situation that the exhaust gas purification ability of Exhaust gas purifying device 210 has descended, gas exhaust manifold 305 is separated into to upstream housing 81 and downstream housing 82, and extracts from the catalyst structure 120 that upstream housing 81 will have an exhaust gas purification catalyst 23 worn.The following describes this process.Unload bolt 65 from each bolt hole 61,62,63, making gas exhaust manifold 305(is upstream housing 81) from cylinder cap 3, separate.In addition, be fixed at downstream housing 82 under the state of silencing apparatus 6, from bolt hole 72a, 126a, 71a, unload bolt 27, can make upstream housing 81 separate from downstream housing 82 with catalyst structure 120.Like this, make than cylinder cap 3 and downstream housing 82 freely upstream housing 81 (from front, to be seen as right side) to the left along the flow direction of exhaust mobile, thereby be pulled away from upstream housing 81 from downstream housing 82, and then unload catalyst structure 120 from upstream housing 81.
For the catalyst structure 120 unloaded, the residual exhaust gas purification catalyst 23 self-catalysis agent flanges 126 that catalyzer flange 126 arranged and will wear unload, new exhaust gas purification catalyst 23 is arranged on catalyzer flange 126, thereby recovers this catalyst structure 120.Perhaps also can not change exhaust gas purification catalyst 23 ground, put upside down upstream side and the downstream side of configuration exhaust gas purification catalyst 23, send back in gas exhaust manifold 305 for the end of upstream side, catalyzer flange 126 being installed before, thereby can extend service time of exhaust gas purification catalyst 23.Perhaps also catalyst structure 120 itself can be replaced with to new catalyst structure 120.Like this, by catalyst structure 120 or new catalyst structure 120 by after repairing, be assembled in upstream housing 81, utilize bolt 27 the housing flange 71 of upstream housing 81 to be fastened on the housing flange 72 of downstream housing 82 by catalyzer flange 126, and then utilize bolt 65 by the fastening cylinder cap 3 that is fixed in of upstream housing 81, thereby the Exhaust gas purifying device 210 that will recover the exhaust gas purification ability is arranged in motor 100.
In addition, also can with Exhaust gas purifying device 10 in the exhaust entrance 12a of gas exhaust manifold 105 around structure form in the same manner the structure around the exhaust entrance 112a of gas exhaust manifold 305, thereby the exhaust gas purification catalyst identical with catalyzer 41 can be arranged on to exhaust entrance 112a place.Thus, in Exhaust gas purifying device 210, also can, in the interior configuration of gas exhaust manifold 305 as the exhaust gas purification catalyst of a catalyzer with as the exhaust gas purification catalyst 23 of quadric catalysis agent, can improve the exhaust gas purification effect.In addition, because catalyst structure 120 loads and unloads freely with respect to gas exhaust manifold 305, therefore by making a catalyzer with respect to gas exhaust manifold 305 handling freely, can make catalyzer and quadric catalysis agent all with respect to gas exhaust manifold 305 handling freely, improve maintainability.In addition, also can will be positioned at a catalyzer of upstream side as the DOC(used for diesel engine oxidation catalyst with oxidation catalysis function on the flow direction of exhaust), the exhaust gas purification catalyst 23 that the formation that will on the flow direction of exhaust, be positioned at downstream side is the quadric catalysis agent forms DPF(diesel particulate filter, diesel particulate filter).
As mentioned above, motor 100 of the present invention comprises cylinder cap 3, silencing apparatus 6 and is folded in the gas exhaust manifold 5(105,205 or 305 between this cylinder cap 3 and this silencing apparatus 6), this gas exhaust manifold 5(105,205 or 305) possess be formed on this cylinder cap 3 in the exhaust entrance 12a that is connected of relief opening 34 or 112a and the exhaust outlet 11c or the 111c that with this silencing apparatus 6, are connected.This kind of motor 100 has Exhaust gas purifying device 10,110 or 210, this Exhaust gas purifying device 10,110 or 210 by this gas exhaust manifold 105,205 or 305 and exhaust gas purification catalyst 41,42 or 23 form, this exhaust gas purification catalyst 41,42 or 23 be configured in this exhaust entrance 12a of this gas exhaust manifold 105,205 or 305 or 112a, and this exhaust outlet 11c or 111c between the inner space as exhaust passageway in.
Like this, by built-in exhaust gas purification catalyst 41,42 or 23 in existing gas exhaust manifold 105,205 or 305, form device 10,110 or 210 for exhaust gas purification, therefore compare with the way that new Exhaust gas purifying device is set in addition, can reduce the parts number of packages.In addition, configuration space as exhaust gas purification catalyst 41,42 or 23, utilize the inner space of existing gas exhaust manifold 105,205 or 305, thus the boundary dimension of gas exhaust manifold 105,205 or 305 can form with the situation that does not configure exhaust gas purification catalyst under measure-alike size.On the other hand, silencing apparatus 6 also is built-in with exhaust gas purification catalyst, therefore need not maximize.Thereby, the boundary dimension of motor 100 integral body, shape can be remained to size, the shape under the state that exhaust gas purification catalyst is not set.
In addition, about the maintainability of exhaust gas purification catalyst 41,42 or 23, also need not the dismounting for catalyst changeout more, silencing apparatus 6 separately.In the situation that make the exhaust gas purification catalyst of inside of gas exhaust manifold and gas exhaust manifold integrated and form Exhaust gas purifying device indissociably, need to be by the Exhaust gas purifying device of Exhaust gas purifying device integral replacing Cheng Xin, but due to little a lot of gas exhaust manifold as engine components 105 such as the vibration than silencing apparatus etc., 205 or 305 itself form Exhaust gas purifying device 10, 110 or 210 housing, therefore only utilize the gas exhaust manifold 105 with respect to cylinder cap 3 and silencing apparatus 6, 205 or 305 dismounting operation, just can complete Exhaust gas purifying device 10, 110 or 210 replacing operation.In addition, see below, when adopting can be with respect to the structure of gas exhaust manifold 105,205 or 305 dismounting exhaust gas purification catalysts 41,42,23 time, can keep gas exhaust manifold 105,205 or 305 is folded in to state between cylinder cap 3 and silencing apparatus 6 unchangeably, only change exhaust gas purification catalyst 41,42,23.Like this, the Exhaust gas purifying device 10,110,210 of motor 100 of the present invention can improve the maintainability of exhaust gas purification catalyst 41,42,23.
In addition, the exhaust gas purification effect too, because the silencing apparatus 6 be built-in with as mentioned above exhaust gas purification catalyst is in the past compared, be positioned at the gas exhaust manifold 105 of upstream side on the flow direction of exhaust, configuration exhaust gas purification catalyst 41 in 205 or 305 inner space, 42, 23, therefore arrive exhaust gas purification catalyst 41 in exhaust, 42, 23 the moment, the heat of exhaust remains quite high temperature, utilize the exhaust gas heat of this high temperature to promote exhaust gas purification catalyst 41, 42, 23 oxidation and combustion, improve the exhaust gas purification effect, , the minimizing effect of exhaust emission.
In the motor 100 with above-mentioned Exhaust gas purifying device 10, dispose another exhaust gas purification catalyst in the above-mentioned inner space of the above-mentioned gas exhaust manifold 105 of the above-mentioned exhaust passageway of conduct in this Exhaust gas purifying device 10, using the exhaust gas purification catalyst that is positioned at upstream side on the flow direction of in above-mentioned exhaust gas purification catalyst and this another catalyst for clarifying, exhaust in this exhaust passageway as a catalyzer 41, will be positioned at the exhaust gas purification catalyst in downstream side as quadric catalysis agent 42.
Like this, in this Exhaust gas purifying device 10, because this another exhaust gas purification catalyst also is configured in the inner space of gas exhaust manifold 105, therefore the size of gas exhaust manifold 105, shape can be remained to existing size, shape invariance ground, the compactedness that keeps motor 100, also can avoid making complex-shapedization of motor 100 integral body.And, in the exhaust passageway in this gas exhaust manifold 105, exhaust is divided into two stages by catalyzer 41 and quadric catalysis agent 42 and purifies, and therefore can improve purifying property.
In the motor 100 with above-mentioned Exhaust gas purifying device 10, make an above-mentioned catalyzer 41 with respect to above-mentioned gas exhaust manifold 105 handling freely.
Like this, why making a catalyzer 41 with respect to gas exhaust manifold 105 handling freely, is shorter than quadric catalysis agent 42 because be exposed to the life-span of a catalyzer 41 in the exhaust that temperature is higher, and its replacement frequency is higher than the replacement frequency of quadric catalysis agent 42.That is, utilize a catalyzer 41 to change catalyzer 41 one time with respect to the handling of gas exhaust manifold 105, carry out the numerous and diverse operation with respect to cylinder cap 3, silencing apparatus 6 dismounting gas exhaust manifolds 105 while therefore noting be used in a catalyzer 41 of each replacing.In addition, if can not load and unload catalyzer one time with respect to gas exhaust manifold,, when needs are changed a catalyzer, need to change whole Exhaust gas purifying device, the life-span than catalyzer, grow and also effective quadric catalysis agent also be replaced.In the present invention, by making a catalyzer 41 with respect to gas exhaust manifold 105 handling freely, also can avoid the replacing in vain of quadric catalysis agent 42 as described above.
In the motor 100 with above-mentioned Exhaust gas purifying device 10, side opening at above-mentioned gas exhaust manifold 105 is provided with insert port 11b, by the first end by above-mentioned exhaust gas purification catalyst 41, via this insert port 11b, be inserted in this gas exhaust manifold 105, this exhaust gas purification catalyst 41 is configured in this gas exhaust manifold 105, opposition side, the second end this exhaust gas purification catalyst 41 at this first end are fixed with lid 43, are arranged on the outer surface of this gas exhaust manifold 105 this lid 43 this insert port of sealing 11b.
In addition, in the motor 100 with above-mentioned Exhaust gas purifying device 110, also the side opening at above-mentioned gas exhaust manifold 205 is provided with insert port 111b, by the first end by above-mentioned exhaust gas purification catalyst 23, via this insert port 111b, be inserted in this gas exhaust manifold 205, this exhaust gas purification catalyst 23 is configured in this gas exhaust manifold 205, opposition side, the second end this exhaust gas purification catalyst 23 at this first end are fixed with lid 21, are arranged on the outer surface of this gas exhaust manifold 205 this lid 21 this insert port of sealing 111b.
Like this, in Exhaust gas purifying device 10 or 110, exhaust gas purification catalyst 41 or 23 forms as cartridge, only by via this insert port 11b or 111b, this first end being inserted in gas exhaust manifold 105 or 205, then this lid 43 or 21 is arranged on the outer surface of gas exhaust manifold 105 or 205, just can complete simply exhaust gas purification catalyst 41 or 23 is assemblied in gas exhaust manifold 105 or 205, in addition, only the lid 43 or 21 of the outside by making to be configured in gas exhaust manifold 105 or 205 is mobile away from insert port 11b or 111b ground, just can simply exhaust gas purification catalyst 41 or 23 be pulled out and unload from gas exhaust manifold 105 or 205 from this insert port 11b or 111b.That is, can, with respect to cylinder cap 3 and silencing apparatus 6 handling gas exhaust manifolds 105 or 205 ground replacing exhaust gas purification catalyst 41 or 23, therefore can improve the maintainability of exhaust gas purification catalyst 41 or 23.
In the motor 100 with above-mentioned Exhaust gas purifying device 10, the above-mentioned first end of above-mentioned exhaust gas purification catalyst 41 forms the shape be complementary with above-mentioned relief opening 34, by the above-mentioned exhaust entrance 12a via above-mentioned gas exhaust manifold 105 is inserted in this relief opening 34 by this first end, this exhaust gas purification catalyst 41 is supported on to this cylinder cap 3.
Like this, by gas exhaust manifold 105 as the inner space of exhaust passageway in configuration exhaust gas purification catalyst 41 on the highest position of delivery temperature, can farthest bring into play the exhaust gas purification ability (oxidability) of exhaust gas purification catalyst 41, promote the minimizing effect of exhaust emission 41.And, because the lid 43 of second end that will be fixed at exhaust gas purification catalyst 41 is arranged on the outer surface of gas exhaust manifold 105, on the other hand, by the second end of exhaust gas purification catalyst 41 to be embedded in state support in relief opening 34 in cylinder cap 3, therefore the two ends of facing of exhaust gas purification catalyst 41 are supported, can because of the vibration of motor 100, not make exhaust gas purification catalyst 41 rock, or the leakage of exhaust occurs.
In the motor 100 with above-mentioned Exhaust gas purifying device 10, above-mentioned lid 43 has lip part 43a at peripheral part, and this lip part 43a and above-mentioned gas exhaust manifold 105 all are anchored on to above-mentioned cylinder cap 3.
Thus, can load and unload integratedly gas exhaust manifold 105 and exhaust gas purification catalyst 41 with respect to cylinder cap 3, improve maintainability.; the lip part 43a that is fixed at the lid 43 of exhaust gas purification catalyst 41 is fixed on to the double terminal operation of gas exhaust manifold 105 to cylinder cap 3 that carry out of an operation on cylinder cap 3; on the other hand; utilize to remove the fastening operation of this lip part 43a to cylinder cap 3, also can remove fastening to cylinder cap 3 of gas exhaust manifold 105.Like this, can reduce operation quantity for Exhaust gas purifying device 10 is connected with cylinder cap 3 and for unload the operation quantity of Exhaust gas purifying device 10 from cylinder cap 3.
In the motor 100 with above-mentioned Exhaust gas purifying device 10, above-mentioned gas exhaust manifold 105 has at least two housing structures 11,12 that the parallel face of flow direction by the exhaust in the above-mentioned exhaust passageway of the inner space with as this gas exhaust manifold 105 is engaged with each other, dispose on the internal surface of this gas exhaust manifold 105 and keep guide 51, this maintenance guide 51, for when this housing structure of at least two 11,12 is engaged with each other, is located this exhaust gas purification catalyst 42.
In addition, in the motor 100 with above-mentioned Exhaust gas purifying device 110, above-mentioned gas exhaust manifold 205 also has at least two housing structures 111,21 that are engaged with each other by the parallel face of exhaust air flow in the above-mentioned exhaust passageway of the inner space with as this gas exhaust manifold 205, dispose on the internal surface of this gas exhaust manifold 105 and keep guide 13, this maintenance guide 13, for when this housing structure of at least two 111,21 is engaged with each other, is located this exhaust gas purification catalyst 23.
Like this, in this Exhaust gas purifying device 10 or 110, can be when carrying out the joint operation of these at least two housing structures 11,12 or 111,21, utilize and keep guide 51 or 13, exhaust gas purification catalyst 42 or 23 is located to the assigned position that remains on gas exhaust manifold 105 or 205 inside, make the assembling facilitation of exhaust gas purification catalyst 42 or 23 to gas exhaust manifold 105 or 205.In addition, when this housing structure of at least two 11,12 or 111,21 can be separated, utilize the separation of housing structure, can easily unload by keeping guide 51 or 13 exhaust gas purification catalysts 42 or 23 that keep, can utilize above-mentioned technique that new exhaust gas purification catalyst 42 or 23 is assembled in gas exhaust manifold 105 or 205 simply.
In the motor 100 with above-mentioned Exhaust gas purifying device 210, periphery at above-mentioned exhaust gas purification catalyst 23 is fixed with catalyzer flange 126, the rectangular parting plane of flow direction of the exhaust in the above-mentioned exhaust passageway of above-mentioned gas exhaust manifold 305 utilizations and its inside, can be separated into two housing structures 81, 82, at this housing structure 81 respectively, 82 the end periphery in the face of this parting plane is formed with housing flange 71, 72, by at two these housing flanges 71, 72 these catalyzer flanges 126 of clamping, this exhaust gas purification catalyst 23 is fixed in this gas exhaust manifold 305.
Like this, in Exhaust gas purifying device 210, separated from one another by the housing flange 71,72 by two housing structures 81,82, can decompose gas exhaust manifold 305, can easily load and unload exhaust gas purification catalyst 23, improve maintainability.In addition, the catalyzer flange 126 become one by 71,72 settings of the housing flange at two housing structures 81,82 and exhaust gas purification catalyst 23, can prevent the clearance leakage of exhaust from 71,72 of housing flanges.
In the motor 100 with above-mentioned Exhaust gas purifying device 10,110,210, above-mentioned exhaust gas purification catalyst 42 or 23 has thermoinsulation material 25 in periphery.
Like this, in this Exhaust gas purifying device 10,110,210, utilize thermoinsulation material 25 landfill gas exhaust manifolds 105,205 or 305 and exhaust gas purification catalyst 42 or 23 between gap, suppress the decline of the temperature of exhaust gas purification catalyst 42 or 23, thereby can farthest bring into play the exhaust gas purification ability of exhaust gas purification catalyst 42 or 23, improve the minimizing effect of exhaust emission.
In addition, thermoinsulation material 25, except above-mentioned configuration mode, for example also can, according to the difference of setting, be located at a catalyzer 41 of Exhaust gas purifying device 10.In addition, also can exhaust gas purification catalyst 23 or 43 be built in gas exhaust manifold not exterior thermoinsulation material ground.In addition, can make the whole surface of periphery of exhaust gas purification catalyst across the internal surface butt of thermoinsulation material and gas exhaust manifold, also can only make the part surface of periphery of exhaust gas purification catalyst across the internal surface butt of thermoinsulation material and gas exhaust manifold.
Industrial applicibility
The present invention can utilize in the technology of the Exhaust gas purifying device of motor, particularly can utilize in the technology of the configuration of the catalyzer of using in exhaust gas purification and replacing.As the motor with Exhaust gas purifying device of the present invention, can be diesel engine etc., except the form with the motor monomer provides, also can be provided as the engine operated machine that is connected with working machine and forms in addition.
Claims (13)
1. a motor, this motor possess cylinder cap (3), silencing apparatus (6) and be folded in this cylinder cap (3) and this silencing apparatus (6) between gas exhaust manifold (5), this gas exhaust manifold (105,205,305) comprises the exhaust entrance (12a, 112a) that the relief opening (34) interior with being formed on this cylinder cap (3) is connected and the exhaust outlet (11c) be connected with this silencing apparatus (6), it is characterized in that
Periphery in cylinder cap (3), dispose forwardly gas exhaust manifold (5), in left and right, one side disposes this silencing apparatus (6), there is this exhaust entrance (12a in an end of this gas exhaust manifold (5), 112a), there is this exhaust outlet (11c in the other end of this gas exhaust manifold (5), 111c), make this end be connected and make this exhaust entrance (12a with this cylinder cap (3), 112a) with this relief opening (34), be connected, make this other end be connected and make this exhaust outlet (11c with this silencing apparatus (6), 111c) with in this silencing apparatus (6) be connected, thereby form and make exhaust from this exhaust entrance (12a in this gas exhaust manifold (5), 112a) to this exhaust outlet (11c, 111c) mobile exhaust passageway, the flow direction that makes the exhaust in this gas exhaust manifold (5) is the relief opening (34) in left and right directions ground this cylinder cap of configuration (3), this gas exhaust manifold (5) and this silencing apparatus (6),
This motor has Exhaust gas purifying device (10,110,210), this Exhaust gas purifying device (10,110,210) consists of this gas exhaust manifold (105,205,305) and exhaust gas purification catalyst (41,23), this exhaust gas purification catalyst (41,23) is configured in this exhaust entrance (12a, 112a) and the inner space as exhaust passageway between this exhaust outlet (11c, 111c) of this gas exhaust manifold (105,205,305)
Front surface or side opening at described gas exhaust manifold (105,205,305) are provided with insert port (11b, 111b),
By the first end by described exhaust gas purification catalyst (41,23), via this insert port (11b, 111b), be inserted in this gas exhaust manifold (105,205,305), this exhaust gas purification catalyst (41,23) is configured in this gas exhaust manifold (105,205,305)
The second end in the side contrary with this first end of this exhaust gas purification catalyst (41,23) is fixed with lid (43,21), and this lid (43,21) seals this insert port and is arranged on the front outer surface of this gas exhaust manifold (105,205,305) (11b, 111b).
2. motor according to claim 1, is characterized in that,
The described first end of described exhaust gas purification catalyst (41) is the shape be complementary with described relief opening (34), by the described exhaust entrance (12a, 112a) via described gas exhaust manifold (105,205,305) is inserted in this relief opening (34) by this first end, this exhaust gas purification catalyst (41) is supported on to this cylinder cap (3).
3. motor according to claim 2, is characterized in that,
Described exhaust emission control catalyst (41) is cylindric, with the diameter that is seen as circular open from front of described relief opening (34), described exhaust entrance (12a, 112a) and described insert port (11b), forms matchingly the diameter of the rounded face of described exhaust emission control catalyst (41).
4. according to the described motor of claim 2 or 3, it is characterized in that,
Described lid (43) has lip part (43a) at peripheral part, and this lip part (43a) and described gas exhaust manifold (105,205,305) all are anchored on described cylinder cap (3).
5. motor according to claim 1, is characterized in that,
Dispose another exhaust gas purification catalyst in the described inner space of the described gas exhaust manifold (105,205,305) of the described exhaust passageway of conduct in described Exhaust gas purifying device (10,110,210), to be arranged in the exhaust gas purification catalyst of upstream side of flow direction of exhaust of this exhaust passageway in described exhaust gas purification catalyst and this another exhaust gas purification catalyst as a catalyzer (41), using the exhaust gas purification catalyst in downstream side as the quadric catalysis agent (42,23).
6. motor according to claim 5, is characterized in that,
Make a described catalyzer (41) with respect to described gas exhaust manifold (105,205,305) handling freely.
7. motor according to claim 5, is characterized in that,
To there is the described exhaust gas purification catalyst of described lid (21) as described quadric catalysis agent (23), using described another exhaust emission control catalyst as a described catalyzer (41), front surface at described gas exhaust manifold (205) offers the second insert port (11b), by the first end by a described catalyzer (41), via this second insert port (11b), be inserted in this gas exhaust manifold (205), this catalyzer (41) is configured in this gas exhaust manifold (205), the second end in the side contrary with this first end of this catalyzer (41) is fixed with another lid (43), this lid (43) of this catalyzer (41) seals on the front outer surface that this second insert port is arranged on this gas exhaust manifold (205) (11b).
8. motor according to claim 7, is characterized in that,
The described first end of a described catalyzer (41) is the shape be complementary with described relief opening (34), by the described exhaust entrance (12a, 112a) via described gas exhaust manifold (105,205) is inserted in this relief opening (34) by this first end, this exhaust gas purification catalyst (41) is supported on to this cylinder cap (3).
9. motor according to claim 8, is characterized in that,
A described catalyzer (41) is cylindric, with the diameter that is seen as circular open from front of described relief opening (34), described exhaust entrance (12a, 112a) and described the second insert port (11b), forms matchingly the diameter of the rounded face of a described catalyzer (41).
10. motor according to claim 8 or claim 9, is characterized in that,
Described lid (43) has lip part (43a) at peripheral part, and this lip part (43a) and described gas exhaust manifold (105,205) all are anchored on described cylinder cap (3).
11. motor according to claim 5, is characterized in that,
To there is the described exhaust gas purification catalyst of described lid (43) as a described catalyzer (41), described gas exhaust manifold (105) has at least two housing structures (11, 12), these at least two housing structures (11, 12) by the parallel face of flow direction of the exhaust in the described exhaust passageway of the inner space with as this gas exhaust manifold and be engaged with each other, dispose on the internal surface of this gas exhaust manifold (105) and keep guide (51), this keeps guide (51) at these at least two housing structures (11, while 12) being engaged with each other, locate described quadric catalysis agent (42).
12. motor according to claim 5, is characterized in that,
To there is the described exhaust gas purification catalyst of described lid (43) as a described catalyzer (41), periphery in described quadric catalysis agent (23) is fixed with catalyzer flange (126), the rectangular parting plane of flow direction of the exhaust in the described exhaust passageway of the inside of described gas exhaust manifold (305) utilization and this gas exhaust manifold, can be separated into two housing structures (81, 82), at this housing structure (81 respectively, 82) the end periphery of facing with this parting plane is formed with housing flange (71, 72), by at two these housing flanges (71, 72) this catalyzer flange (126) of clamping between, this quadric catalysis agent (23) is fixed in this gas exhaust manifold (305).
13. motor according to claim 1, is characterized in that,
Described exhaust gas purification catalyst (23) has thermoinsulation material (25) in periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310718898.1A CN103644015B (en) | 2009-03-17 | 2010-03-10 | Motor |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-064317 | 2009-03-17 | ||
| JP2009064317A JP5368838B2 (en) | 2009-03-17 | 2009-03-17 | engine |
| JP2009-064318 | 2009-03-17 | ||
| JP2009064318A JP5368839B2 (en) | 2009-03-17 | 2009-03-17 | engine |
| PCT/JP2010/054048 WO2010106955A1 (en) | 2009-03-17 | 2010-03-10 | Engine |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310718898.1A Division CN103644015B (en) | 2009-03-17 | 2010-03-10 | Motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102317589A CN102317589A (en) | 2012-01-11 |
| CN102317589B true CN102317589B (en) | 2014-01-08 |
Family
ID=42739615
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310718898.1A Expired - Fee Related CN103644015B (en) | 2009-03-17 | 2010-03-10 | Motor |
| CN201080007324.8A Expired - Fee Related CN102317589B (en) | 2009-03-17 | 2010-03-10 | Engine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310718898.1A Expired - Fee Related CN103644015B (en) | 2009-03-17 | 2010-03-10 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN103644015B (en) |
| WO (1) | WO2010106955A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013015090A (en) * | 2011-07-05 | 2013-01-24 | Komatsu Ltd | Exhaust gas purification device |
| US9828898B2 (en) * | 2015-10-29 | 2017-11-28 | Hyundai Motor Company | Optimized structure for integrated catalytic muffler |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3644098A (en) * | 1969-09-18 | 1972-02-22 | Universal Oil Prod Co | Catalytic converter for exhaust gases |
| DE3509969A1 (en) * | 1985-03-20 | 1985-11-21 | Friedrich 5000 Köln Elles | Exhaust catalytic converter cartridge for afterburning and silencing on internal combustion engines |
| JPH0364612A (en) * | 1989-07-31 | 1991-03-20 | Suzuki Motor Corp | Exhaust gas purifying device for two cycle engine |
| CN2106894U (en) * | 1990-07-17 | 1992-06-10 | 秋双玉 | Cyclonic silencing and economizing purifier |
| JPH0634123U (en) * | 1992-10-05 | 1994-05-06 | 臼井国際産業株式会社 | Exhaust manifold with built-in metal catalyst |
| JPH09119313A (en) * | 1995-10-25 | 1997-05-06 | Nippon Steel Corp | Exhaust manifold integral type metal carrier and manufacture therefor |
| JP2001140636A (en) * | 1999-11-16 | 2001-05-22 | Yanmar Diesel Engine Co Ltd | Exhaust emission control device |
| JP4229560B2 (en) * | 2000-01-21 | 2009-02-25 | 本田技研工業株式会社 | Heat exchanger |
| JP2004100489A (en) * | 2002-09-05 | 2004-04-02 | Hino Motors Ltd | Exhaust gas white smoke prevention device |
| JP3955293B2 (en) * | 2004-08-06 | 2007-08-08 | 株式会社共立 | Muffler with catalyst for internal combustion engine |
| CN2825968Y (en) * | 2005-07-13 | 2006-10-11 | 林辉江 | Exhausting and purifying muffler for gasoline vehicle with electric fuel injection system |
| CN2821170Y (en) * | 2005-09-29 | 2006-09-27 | 吴雄良 | Diesel engine exhaust regeneration filter purifying silensing device |
-
2010
- 2010-03-10 CN CN201310718898.1A patent/CN103644015B/en not_active Expired - Fee Related
- 2010-03-10 CN CN201080007324.8A patent/CN102317589B/en not_active Expired - Fee Related
- 2010-03-10 WO PCT/JP2010/054048 patent/WO2010106955A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN103644015A (en) | 2014-03-19 |
| WO2010106955A1 (en) | 2010-09-23 |
| CN102317589A (en) | 2012-01-11 |
| CN103644015B (en) | 2016-04-27 |
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