CN1148136A - Means for purifying exhaust of internal combustion engine - Google Patents
Means for purifying exhaust of internal combustion engine Download PDFInfo
- Publication number
- CN1148136A CN1148136A CN96111752A CN96111752A CN1148136A CN 1148136 A CN1148136 A CN 1148136A CN 96111752 A CN96111752 A CN 96111752A CN 96111752 A CN96111752 A CN 96111752A CN 1148136 A CN1148136 A CN 1148136A
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- China
- Prior art keywords
- cylindrical shell
- pipe
- thermal expansion
- porous
- porous slab
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Classifications
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- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/26—Chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Toxicology (AREA)
- General Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to an exhaust gas purifying apparatus for internal combustion engine comprising a cylinder 21 and a porous sheet accepted in and at least a fore part and a rear part fastened on said cylinder 21, catalyzing metal being carried on the porous. The porous sheet is made of a ferritic stainless steel sheet containing Cr 16-18%, C not more than 0.12%, Mn not more than 1%, and Si not more than 0.75%. Further, the cylinder is made of a stainless steel having a higher coefficient of linear thermal expansion than that of the porous sheet in order to make the thermal expansion amounts of the porous sheet and the cylinder approximately same. Wherefore, the thermal stress on the fixed portion between the porous and the cylinder is so small that the durability of the exhaust gas purifying apparatus is improved.
Description
The present invention relates to a kind of improvement of exhaust gas purifier for internal combustion engine.
In the past, for the Exhaust gas purifying device of internal-combustion engine, real opening in the clear 55-110719 communique " catalyst " etc. proposed solution in (1) of example Japanese kokai publication hei 3-85316 communique " Exhaust gas purifying device of internal-combustion engine " and (2) Japan.
Among Fig. 1 and Fig. 7 of above-mentioned conventional art (1) communique, be on the relief opening of internal-combustion engine, to connect outlet pipe 3, in this outlet pipe 3, dispose the interior pipe 5 with outlet pipe 3 equidirectional extensions, in this, be attached with the carrier 8 that contains catalytic specie on the wall of pipe 5 with a lot of holes.
Outlet pipe 3 and interior pipe 5 form the semicircle tubular of radially cutting apart, and the matched edges of pipe 5 in clipping between the matched edges of outlet pipe 3 are by being welded into one.Outlet pipe 3 and interior pipe 5 are to be made by steel plate or corrosion resistant plate.
In addition, in Fig. 5 of the communique of above-mentioned prior art (2), an end that on front exhaust pipe 2, is connecting cylinder-like shell 6 by cone 4, the other end of this shell 6 connects final vacuum pipes 3 by cone 5, disposes the cylindrical body 9 with the lath metal catalytic material of shell 6 equidirectional extensions in the shell 6.
One end of cylindrical body 9 is fixed on the front exhaust pipe 2 by retaining ring 13, and the other end of cylindrical body 9 is by retaining ring 13 ' be engaged in slidably on the final vacuum pipe 3.
In the above-mentioned conventional art (1),, be not easy to sponge the poor of both elongations of causing along with thermal expansion because outlet pipe 3 is one with interior pipe 5.In addition, interior pipe 5 becomes high temperature because of the reaction heat of catalytic specie, in this case along with the elongation of thermal expansion, the carrier 8 that contains catalytic specie is peeled off from interior pipe 5.
In the above-mentioned prior art (2), forward and backward outlet pipe 2,3 is connected respectively with cylindrical body 9 with shell 6, and cone 4,5 must be arranged, and cylindrical body 9 is by fixing rod 13,13 ' be connected on the front and rear row tracheae 2,3, number of parts is many, assembling operation complexity, expense height.
The objective of the invention is: 1, make installation exercise simple with few component number, 2, absorb the poor of the elongation that produces cylindrical shell and porous slab along with thermal expansion at an easy rate, 3, catalytic specie can not come off from porous slab.
For achieving the above object, the invention is characterized in, by cylindrical shell, be contained in this cylindrical shell and front portion and rear portion are fixed on that porous slab in the above-mentioned cylindrical shell constitutes at least, on porous slab, be loaded with in the exhaust gas purifier for internal combustion engine of catalytic metal, above-mentioned porous slab is made of Cr:16-18%, ferrite stainless steel below the C:0.12%, below the Mn:1%, below the Si:0.75%, in addition, above-mentioned cylindrical shell is used the corrosion resistant plate bigger make than the coefficient of linear expansion of above-mentioned porous slab.
Be fixed on the cylindrical shell owing to be contained in the front portion at least and the rear portion of the porous slab in the cylindrical shell, thereby number of parts is few, assembling operation is simple.
In addition, owing to be to be made of the material also bigger than the porous plate material coefficient of linear expansion of high temperature, thereby the thermal expansion amount of porous slab and outlet pipe is roughly the same than the low relatively outlet pipe of porous slab for temperature.Like this, it is little to act on the thermal stress of the standing part between porous slab and the outlet pipe.
Have, the porous slab that is high temperature is made by the smaller material of coefficient of linear expansion again, because of heat when stretching, has prevented the peeling off of catalytic metal of wall institute mounting at porous slab.
Fig. 1 is the side view of two-wheeled motor vehicle that the Exhaust gas purifying device of internal-combustion engine of the present invention is installed;
Fig. 2 is the side view of venting gas appliance of the present invention;
Fig. 3 is the amplification view along 3-3 line among Fig. 2;
Fig. 4 is the sectional view along 4-4 line among Fig. 3;
Fig. 5 is the sectional view along 5-5 line among Fig. 3.
Embodiments of the invention are described below with reference to the accompanying drawings.And drawing is to see by the direction of symbol.
Fig. 1 is the side view that the two-wheeled motor vehicle of exhaust gas purifier for internal combustion engine of the present invention is installed.Two-wheeled motor vehicle 1 has motor 3 (internal-combustion engine) near the central authorities of car body 2, be connected with venting gas appliance 5 on the relief opening 4 of this motor 3, and the rear portion of venting gas appliance 5 is connected with silencing apparatus 15.
Fig. 2 is the side view of venting gas appliance of the present invention, the front portion of venting gas appliance 5 has an end 11a of the 1st outlet pipe 11 of the relief opening 4 (with reference to Fig. 1) that is connected motor 3, connecting Exhaust gas purifying device 12 on the other end 11b of the 1st outlet pipe 11, an end 13a who is connecting the 2nd outlet pipe 13 on this purifying exhaust gas device 12, another end 13b of the 2nd outlet pipe 13 go up and are connecting silencing apparatus 15 (with reference to Fig. 1) by flange plate
Fig. 3 is along the amplification view of 3-3 line among Fig. 2, the front portion of Exhaust gas purifying device 12 has an end 21a of the cylindrical shell 21 that connects the 1st outlet pipe 11 the other end 11b, an end 13a who is connecting the 2nd outlet pipe 13 on another end 21b of this cylindrical shell 21, pipe 22 in containing in the cylindrical shell 21, and cylindrical shell 21 interior anterior 22a (end) and the rear portion 22b (the other end) that connecting interior pipe 22 by welding at least.
The 1st outlet pipe the 11, the 2nd outlet pipe 13, cylindrical shell 21 and interior pipe 22 are cylinder-like part, and the diameter of the 1st outlet pipe the 11, the 2nd outlet pipe 13 and interior pipe 22 is roughly the same.Interior pipe 22 is made of porous slab (thin-walled porous slab), with cylindrical shell 21 equidirectional extensions.
Like this, the diameter of interior pipe 22 and the 1st, the 2nd outlet pipe 11,13 are roughly the same because diameter rapid change not, thereby, exhaust by the time the pressure loss little.
In more detail, an end 22a of the interior pipe 22 of the interior insertion of an end 21a of cylindrical shell 21 also welds, an end 22a of pipe 22 is inserted with the other end 11b of the 1st outlet pipe 11 in being somebody's turn to do, and another end 11b of the 1st outlet pipe 11 and end 21a, a 22a weld fixing on whole circumference.
In addition, the other end 22b of interior pipe 22 is inserted with 13 1 end 13a of the 2nd outlet pipe, and end 13a of the 2nd outlet pipe 13 and the other end 21b, 14b weld fixing on whole circumference.
Here, in constituting the porous slab of pipe 22 by contain Cr:16-18%, ferrite stainless steel below the C:0.12%, below the Mn:1%, below the Si:0.75% is made, for example, make by SUS430 hot-rolled stainless steel plate, cold rolled stainless steel sheet.
In more detail, SUS430 be by contain Cr:16.00-18.00%, Ferritic Stainless Steel below the C:0.12%, below the Mn:1.00%, below the Si:0.75%, below the P:0.040%, below the S:0.030% is made.
In addition, cylindrical shell 21 is made than interior pipe 22 big corrosion resistant plates by coefficient of linear expansion, for example, is made by SUS304 hot-rolled stainless steel plate, cold rolled stainless steel sheet as Austenitic Stainless Steel.
In pipe 22 have the precious metal that is loaded with platinum or rhodium etc. on the wall of porous and has catalysis (by will contain precious metal modes such as solution coating adhere to).
In addition, the 23rd, the protector of covering high-temperature cylindrical shell 21, this protector 23 is fixed by a plurality of nuts 25 by a plurality of bolts 24 that are welded on cylindrical shell 21 outer circumferential faces.
Fig. 4 be among Fig. 3 along the sectional view of 4-4 line, show the state that the other end 11b that is in the 1st outlet pipe 11 goes up an end 22a of chimeric end 21a that cylindrical shell 21 arranged and interior pipe 22.
Fig. 5 be among Fig. 3 along the sectional view of 5-5 line, interior pipe 22 is by thin plate being curled into cylindric, faying surface being carried out spot welding and fixing.Protector 23 be with about be divided into two halves semicircular cylinder faying surface with screw fastening and fixing.
The effect of the Exhaust gas purifying device of said structure is described according to Fig. 3 below.
The exhaust of motor is flowed along the direction of the blank arrow among the figure, contacts with precious metal contained in the interior pipe 22 to produce reaction and be cleaned, and enters in the atmosphere.
Table 1
| Condition | Thermal expansion | ||||||||
| Material | Linear expansion coeffcient (/ ℃) | Tensile modulus of elasticity (Kgf/m 2) | Length (mm) | Serviceability temperature (℃) | Atmospheric temperature (℃) | Amount (mm) | |||
| Cylindrical shell | SU304 | ????β 1??18.9×10 6 | ????E 1??1.93×10 4 | ???L ??108 | ??T 1??450 | ????t ????20 | ??X 1??0.88 | ||
| Interior pipe | SUS430 | ????β 2??11.9×10 6 | ????E 2??2.00×10 4 | ???L ??108 | ??T 2??650 | ????t ????20 | ??X 2??0.81 | ||
At first the cylindrical shell 21 and the difference of the thermal expansion amount of interior pipe 22 are calculated according to the condition in the above-mentioned table.
Thermal expansion amount X is tried to achieve by following formula (1)
X＝β·L(T－t)???????????????………(1)
X: the thermal expansion amount (mm) of cylindrical shell 21 or interior pipe 22
β: the linear expansion coeffcient (linear expansivity) of cylindrical shell 21 or interior pipe 22 (/ ℃)
L: the length (mm) of cylindrical shell 21 or interior pipe 22
T: serviceability temperature (℃)
(cylindrical shell 21 of exhaust air flow state or the temperature of interior pipe 22)
T: atmospheric temperature (℃)
(exhaust flowing state cylindrical shell 21 and in the temperature of pipe 22)
Generally speaking, in the reaction of catalytic metal, the temperature T 1 of cylindrical shell 21 is approximately 450 ℃, and the temperature T 2 of interior pipe 22 is about 650 ℃.Like this, cylindrical shell 21 because and be separated with hollow layer between the interior pipe 22, and be exposed in the ambient atmos, thereby lower than the temperature of the interior pipe 22 that is loaded with catalytic metal.
In addition, constitute the linear expansion coeffcient β of the SU304 of cylindrical shell 21
1Be 18.9 * 10
-6/ ℃, the linear expansion coeffcient β of the SUS430 of pipe 22 in constituting
2Be 11.9 * 10
-6/ ℃.
And the length L of cylindrical shell 21 and interior pipe 22 is 108mm in this embodiment.
Therefore, according to above-mentioned formula (1), the thermal expansion amount X of cylindrical shell 21
1Be 0.88mm, the thermal expansion amount X of interior pipe 22
2Be 0.81mm.Like this, the poor X of thermal expansion amount
3(X
1-X
2) be 0.07mm, the thermal expansion amount X of cylindrical shell 21
1Thermal expansion amount X with interior pipe 22
2Roughly the same.
Indicated as described above, though the interior pipe of being made by porous slab 22 is higher than the temperature of cylindrical shell 21, also can be with thermal expansion amount X
2Suppress than the thermal expansion amount X of cylindrical shell 21
1Smaller.
Below, cylindrical shell 21 and interior pipe 22 are forwardly reached under the situation of fixing at the rear portion, along with the poor X of thermal expansion amount
3Act on the thermal stress of cylindrical shell 21 and interior pipe 22, will calculate according to each condition of above-mentioned table.
In this case, act on the power on the cylindrical shell 21 and act in pass between the power of pipe on 22 be:
σ
1·S
1＝σ
2·S
2?????………(2)
σ
1: by the poor X of thermal expansion amount
3And act on thermal stress (Kgf/mm on the cylindrical shell 21
2).
σ
2: by the poor X of thermal expansion amount
3And act on thermal stress (Kgf/mm on the cylindrical shell 22
2).
S
1: the area (mm of the cylindric section of cylindrical shell 21
2)
S
2: the area (mm of the cylindric section of cylindrical shell 22
2)
Here, the thermal expansion amount X of cylindrical shell 21
1Because thermal expansion amount X than interior pipe 22
2Want big, act on the thermal stress σ on the cylindrical shell 21
1Be compressive stress, the thermal stress σ in acting on the pipe 22
2Be tensile stress.
In addition, the poor X of thermal expansion amount
3With the relation of the distortion of cylindrical shell 21 that takes place and interior pipe 22 thereupon be
[formula 1]
ε
1＋ε
2＝|β
1(T
1－t)－β
2(T
2－t)|??????………(3)
ε
1: the poor X that is accompanied by thermal expansion amount
3The distortion on the cylindrical shell that occurs in 21
ε
2: the poor X that is accompanied by thermal expansion amount
3The interior distortion of managing on 22 that occurs in
On the other hand, the tensile modulus of elasticity E of cylindrical shell 21
1(Kgf/mm
2) be
E
1＝σ
1/ε
1?????????????………(4)
In addition, the tensile modulus of elasticity E of interior pipe 22
2(Kgf/mm
2) be
E
2＝σ
2/ε
2?????????????………(5)
Like this, by above-mentioned formula (2)-(5), the thermal stress σ in acting on the pipe 22
2Try to achieve by following formula (6).[formula 2]
Like this, act on thermal stress σ on the cylindrical shell 21 by above-mentioned formula (2)
1Try to achieve by following formula (7):
σ
1＝σ
2·S
2/S
1????????????………(7)
Like this, by above-mentioned formula (6) and (7), act on thermal stress (compressive stress) σ on the cylindrical shell 21
1Be 3.6Kgf/mm
2, thermal stress (tensile stress) σ in acting on the pipe 22
2Be 8.9Kgf/mm
2
According to the content of above explanation, act on the thermal stress σ on the standing part between cylindrical shell 21 and the interior pipe 22
1, σ
2Very little, thus, improved the durability of Exhaust gas purifying device 12.
In addition, in the above-described embodiments, be loaded with the porous slab of catalytic metal because be contained in the cylindrical shell 21 and at least front portion and rear portion be fixed on the cylindrical shell 21, thereby, be not subjected to cylindric in the restriction of pipe 22.For example can make planar.
In addition, cylindrical shell 21 is by making than the big corrosion resistant plate of interior pipe 22 linear expansion coeffcients, except SUS304, for example also can adopt austenite stainless steel plate such as SUS310S, SUS316 to make.
More than said the present invention since be will be loaded with catalytic metal porous slab with contain Cr:16-18%, ferrite stainless steel below the C:0.12, below the Mn:1%, below the Si:0.75% is made, accommodating the cylindrical shell of porous slab uses the corrosion resistant plate bigger than the coefficient of linear expansion of porous slab to make, the cylindrical shell lower than porous slab relative temperature uses the material bigger than the linear expansion coeffcient of high temperature porous plate material to constitute, thereby, make the thermal expansion amount of porous slab and cylindrical shell roughly the same.For this reason, owing to the thermal stress on the standing part that acts between porous slab and the cylindrical shell is little, thereby improved the durability of Exhaust gas purifying device.
Like this, be fixed on structure such on the cylindrical shell, and become simply as the mounting structure in the past of portion of intermediary its structure of comparing by tapered portion owing to be housed in the front portion at least and the rear portion of the porous slab in the cylindrical shell, the part count minimizing, thus make installation exercise simple.
In addition, owing to be that the porous slab of high temperature is made with the smaller material of linear expansion coeffcient, thereby, be heated when flexible at porous slab, can prevent that the appended catalytic metal generation of wall from peeling off.
Claims (1)
1. the Exhaust gas purifying device of an internal-combustion engine, by cylindrical shell, be contained in this cylindrical shell and at least the porous slab that is fixed on the above-mentioned cylindrical shell of front portion and rear portion make, on porous slab, be loaded with catalytic metal, it is characterized in that: above-mentioned porous slab is made of Cr:16-18%, ferrite stainless steel below the C:0.12%, below the Mn:1%, below the Si:0.75%, in addition, above-mentioned cylindrical shell is used the corrosion resistant plate bigger make than the coefficient of linear expansion of above-mentioned porous slab.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP143356/95 | 1995-06-09 | ||
| JP7143356A JPH08332344A (en) | 1995-06-09 | 1995-06-09 | Exhaust gas purifying apparatus for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1148136A true CN1148136A (en) | 1997-04-23 |
| CN1098409C CN1098409C (en) | 2003-01-08 |
Family
ID=15336889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96111752A Expired - Fee Related CN1098409C (en) | 1995-06-09 | 1996-06-07 | Means for purifying exhaust of internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH08332344A (en) |
| KR (1) | KR0170058B1 (en) |
| CN (1) | CN1098409C (en) |
| TW (1) | TW294759B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437946A (en) * | 2015-08-10 | 2017-02-22 | 佛吉亚排放控制技术德国有限公司 | Component of an exhaust system |
| CN110772985A (en) * | 2019-11-18 | 2020-02-11 | 湖南省约伯能源科技有限公司 | Catalyst loader and denitration reaction equipment with same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005064030A1 (en) * | 2003-12-26 | 2005-07-14 | Jfe Steel Corporation | FERRITIC Cr-CONTAINING STEEL |
| KR102181693B1 (en) | 2019-05-31 | 2020-11-24 | 원동민 | Exhaust system for vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4681760A (en) * | 1985-04-17 | 1987-07-21 | The Board Of Trustees Of The Leland Stanford Junior University | Method of conferring immunotolerance to a specific antigen |
| JP2514367B2 (en) * | 1987-06-27 | 1996-07-10 | 日新製鋼株式会社 | Automotive engine manifold steel |
| JP3085316B2 (en) * | 1991-05-08 | 2000-09-04 | 株式会社デンソー | Refrigerant recovery and regeneration equipment |
| JP3252548B2 (en) * | 1993-08-17 | 2002-02-04 | スズキ株式会社 | Engine exhaust system |
-
1995
- 1995-06-09 JP JP7143356A patent/JPH08332344A/en active Pending
-
1996
- 1996-05-24 TW TW085106196A patent/TW294759B/zh not_active IP Right Cessation
- 1996-06-07 CN CN96111752A patent/CN1098409C/en not_active Expired - Fee Related
- 1996-06-07 KR KR1019960020409A patent/KR0170058B1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437946A (en) * | 2015-08-10 | 2017-02-22 | 佛吉亚排放控制技术德国有限公司 | Component of an exhaust system |
| US10233814B2 (en) | 2015-08-10 | 2019-03-19 | Faurecia Emissions Control Technologies, Germany Gmbh | Component of an exhaust system |
| CN106437946B (en) * | 2015-08-10 | 2020-06-16 | 佛吉亚排放控制技术德国有限公司 | Component of an exhaust system |
| CN110772985A (en) * | 2019-11-18 | 2020-02-11 | 湖南省约伯能源科技有限公司 | Catalyst loader and denitration reaction equipment with same |
| CN110772985B (en) * | 2019-11-18 | 2024-05-24 | 湖南省约伯能源科技有限公司 | Catalyst loader and denitration reaction device with same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR0170058B1 (en) | 1999-01-15 |
| TW294759B (en) | 1997-01-01 |
| KR970001871A (en) | 1997-01-24 |
| JPH08332344A (en) | 1996-12-17 |
| CN1098409C (en) | 2003-01-08 |
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