CN112610322B - Tail gas treatment device for internal combustion engine - Google Patents

Tail gas treatment device for internal combustion engine Download PDF

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Publication number
CN112610322B
CN112610322B CN202011454847.9A CN202011454847A CN112610322B CN 112610322 B CN112610322 B CN 112610322B CN 202011454847 A CN202011454847 A CN 202011454847A CN 112610322 B CN112610322 B CN 112610322B
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China
Prior art keywords
gas treatment
tail gas
seat
combustion engine
internal combustion
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Active
Application number
CN202011454847.9A
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Chinese (zh)
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CN112610322A (en
Inventor
史玉锋
田书涛
王育红
王艳柳
朱海东
李富民
符晓
张永福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xixia Intake & Exhaust Manifolds Co ltd
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Xixia Intake & Exhaust Manifolds Co ltd
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Priority to CN202011454847.9A priority Critical patent/CN112610322B/en
Publication of CN112610322A publication Critical patent/CN112610322A/en
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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
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P1/00—Air cooling
    • F01P1/06—Arrangements for cooling other engine or machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F16F15/085—Use of both rubber and metal springs
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Air Bags (AREA)

Abstract

The invention discloses a tail gas treatment device for an internal combustion engine, which comprises a base and a tail gas treatment box, wherein the upper surface of the base is fixedly connected with a tray through a buffer seat, the buffer seat consists of a cushion plate, an air bag and a rubber plug, the air bag is arranged on the surface of the cushion plate, the rubber plug is connected with an inflation inlet of the air bag in a plugging and pulling manner, a support column is fixedly connected to the position, close to the side edge, of the surface of the base, the top end of the support column is detachably connected with an installation seat through a bolt, and the installation seat is fixedly connected to one side of a pressing plate. The tail gas treatment box is clamped and fixed through the air bag at the bottom end of the tray and the shock absorption seat on the lower surface of the pressing plate, the tail gas treatment box is convenient to install, the tail gas treatment box is in conduction connection with the exhaust end of the internal combustion engine through the corrugated hose, the connection mode is flexible connection, the air bag and the shock absorption seat have good buffering and shock absorption performance, the stability of the tail gas treatment box is improved, the phenomenon of air leakage or fracture at the connection position is prevented, and the service life is prolonged.

Description

Tail gas treatment device for internal combustion engine
Technical Field
The invention relates to the technical field of internal combustion engines, in particular to a tail gas treatment device for an internal combustion engine.
Background
An internal combustion engine is a power machine, which is a heat engine that directly converts heat energy released by burning fuel inside the machine into power. The internal combustion engine in the broad sense includes not only reciprocating piston, rotary piston and free piston engines but also jet engines of the rotary vane type, but the internal combustion engine is generally referred to as a piston engine. Piston internal combustion engines are the most common of the reciprocating piston types. The piston type internal combustion engine mixes fuel and air and burns in a cylinder of the engine, and the released heat energy enables the cylinder to generate high-temperature and high-pressure fuel gas. The gas expands to drive the piston to do work, and then the mechanical work is output through a crank-link mechanism or other mechanisms to drive the driven machinery to work. Common diesel engines and gasoline engines convert internal energy into mechanical energy, and change the internal energy by doing work.
However, the conventional exhaust gas treatment device for an internal combustion engine has the following disadvantages in use:
in order to purify the tail gas discharged by the internal combustion engine, the tail gas discharge end of the internal combustion engine is connected with the tail gas treatment box in a conduction mode, most of the tail gas treatment boxes are fixedly connected with the inside of the vehicle body in a rigid connection mode, and due to the vibration of the vehicle body, the connection part of the internal combustion engine and the tail gas treatment box can be loosened, so that the air tightness is reduced, the fracture of the connection part is even caused, and the service life is shortened.
Disclosure of Invention
The invention aims to provide an exhaust gas treatment device for an internal combustion engine, which aims to solve the problems that in the background technology, in order to purify exhaust gas discharged by the internal combustion engine, an exhaust gas treatment box is communicated and connected at an exhaust gas discharge end of the internal combustion engine, most of the exhaust gas treatment boxes are fixedly connected with the interior of a vehicle body in a rigid connection mode, and due to vibration of the vehicle body, the connection part of the internal combustion engine and the exhaust gas treatment box is loosened, so that the air tightness is reduced, even the connection part is broken, and the service life is shortened.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a tail gas processing apparatus for internal-combustion engine, includes base and tail gas processing case, the base upper surface passes through cushion receptacle fixed connection tray, the cushion receptacle comprises backing plate, gasbag and rubber buffer, the gasbag is installed on the backing plate surface, the rubber buffer is connected to the inflation inlet position plug of gasbag, the base surface is close to side fixed connection support column, the support column top is passed through the bolt and can be dismantled with the mount pad and be connected, mount pad fixed connection is in clamp plate one side, fixed surface connects shock mount pad under the clamp plate, bellows is all installed to tail gas processing case both sides wall position, and the gasbag through the tray bottom and the shock mount pad of clamp plate lower surface are fixed tail gas processing case centre gripping, and easy to assemble, tail gas processing case pass through bellows switch-on connection with the exhaust end of internal-combustion engine, and this kind of connected mode is flexonics, and gasbag and shock mount pad all have fine buffering and damping performance, improve tail gas processing case's stability, prevent gas leakage or cracked phenomenon, increase of service life from appearing in junction.
Preferably, support column surface mounting heat dissipation fan, the filter plate can be dismantled and connect to the end of breathing in of heat dissipation fan, carries out the thermal-arrest to the tail gas treatment case through the heat dissipation fan, reduces thermal piling up.
Preferably, case top fixed connection roof is handled to tail gas, roof upper surface equipartition has the rubber strip, and through the rubber strip on roof and roof surface, the effectual stability that improves shock mount and tail gas processing case and connect prevents to sideslip.
Preferably, the shock mount includes bottom plate, axle bed, connecting rod, slider and spring, axle bed fixed connection is on the bottom plate upper surface, through connecting rod swing joint slider above the axle bed, the clamp plate passes through the mount pad to be connected in support column top position, and at the in-process of automobile body motion, the bottom plate compression connecting rod carries out opening and shutting of angle, under the spring action of spring, drives the connecting rod and resets, has fine buffering effect, slows down the impact force.
Preferably, the connecting rods are two, the springs are fixedly connected between the connecting rods and are arranged in parallel with the bottom plate, and the springs are matched with the connecting rods for use and have a good buffering effect.
Preferably, the tail gas treatment box is located between tray and the shock mount, and it is fixed to handle the box centre gripping through the gasbag of tray bottom and the shock mount of clamp plate lower surface, easy to assemble, and the exhaust end of tail gas treatment box and internal-combustion engine passes through corrugated hose on-state connection, and this kind of connected mode is flexonics, and gasbag and shock mount all have fine buffering and shock-absorbing performance, improve the stability of tail gas treatment box, prevent that gas leakage or cracked phenomenon from appearing in the junction, increase of service life.
Preferably, the tail gas treatment box is located on one side of the heat dissipation fan.
Preferably, the corrugated hose protrudes outside the tray.
The invention provides an exhaust gas treatment device for an internal combustion engine, which has the following beneficial effects:
(1) The tail gas treatment box is clamped and fixed by the air bag at the bottom end of the tray and the shock absorption seat on the lower surface of the pressure plate, so that the tail gas treatment box is convenient to mount, the air bag and the shock absorption seat have good buffering and shock absorption performances, and the stability of the tail gas treatment box is improved.
(2) The tail gas treatment box is in conduction connection with the exhaust end of the internal combustion engine through the corrugated hose, and the connection mode is flexible connection, so that the phenomenon of air leakage or fracture at the connection part is prevented, and the service life is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection structure of the pressure plate and the damper base according to the present invention;
FIG. 3 is a schematic view of a connection structure of the buffer base and the tray according to the present invention;
FIG. 4 is a schematic view of the structure of the tail gas treatment tank of the present invention.
In the figure: 1. a base; 2. a buffer seat; 201. a base plate; 202. an air bag; 203. a rubber plug; 3. a tray; 4. a tail gas treatment tank; 401. a corrugated hose; 402. a top plate; 403. a rubber strip; 5. a support pillar; 6. a heat dissipation fan; 601. a filter screen plate; 7. a mounting seat; 8. pressing a plate; 9. a shock absorbing seat; 901. a base plate; 902. a shaft seat; 903. a connecting rod; 904. a slider; 905. a spring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-4, the present invention provides the technical solutions: the utility model provides a tail gas processing apparatus for internal-combustion engine, includes base 1 and tail gas processing case 4, 1 upper surface of base passes through 2 fixed connection trays 3 of cushion socket, cushion socket 2 comprises backing plate 201, gasbag 202 and rubber buffer 203, gasbag 202 installs on backing plate 201 surface, rubber buffer 203 is connected in the inflation inlet position plug of gasbag 202, 1 surface of base is close to side fixed connection support column 5, the bolt can be dismantled with mount pad 7 and be connected on 5 tops of support column, 7 fixed connection of mount pad are in clamp plate 8 one side, 8 fixed connection cushion socket 9 under the clamp plate, 4 both sides wall position of tail gas processing case all install corrugated hose 401.
Support column 5 surface mounting heat dissipation fan 6, the end of breathing in of heat dissipation fan 6 can be dismantled and connect filter plate 601, handles case 4 through heat dissipation fan 6 to the tail gas and carries out the heat dissipation, reduces thermal piling up.
4 top fixed connection roof 402 of tail gas treatment case, roof 402 upper surface equipartition has rubber strip 403, and through roof 402 and the surperficial rubber strip 403 of roof 402, the effectual stability that 9 and tail gas treatment case 4 are connected that has improved prevents to sideslip.
Shock attenuation seat 9 includes bottom plate 901, axle bed 902, connecting rod 903, slider 904 and spring 905, axle bed 902 fixed connection is on bottom plate 901 upper surface, through connecting rod 903 swing joint slider 904 in axle bed 902 top, clamp plate 8 passes through mount pad 7 to be connected at 5 top positions of support column, and at the in-process of automobile body motion, bottom plate 901 compression connecting rod 903 carries out opening and shutting of angle, under the spring action of spring 905, drives connecting rod 903 and resets, has fine buffering effect, slows down the impact force.
The two connecting rods 903 are specifically connected, the springs 905 are fixedly connected between the two connecting rods 903, the springs 905 are arranged in parallel with the bottom plate 901, and the springs 905 are matched with the connecting rods 903 for use and have a good buffering effect.
Tail gas treatment box 4 is located between tray 3 and cushion socket 9, it is fixed to handle 4 centre grippings of box to tail gas through gasbag 202 and the cushion socket 9 of 8 lower surfaces of clamp plate of tray 3 bottom, easy to assemble, tail gas treatment box 4 passes through corrugated hose 401 conduction connection with the exhaust end of internal-combustion engine, this kind of connected mode is flexonics, gasbag 202 and cushion socket 9 all have fine buffering and shock attenuation performance, improve the stability of tail gas treatment box 4, prevent that gas leakage or cracked phenomenon from appearing in the junction, and the service life is prolonged.
The tail gas treatment box 4 is positioned on one side of the heat dissipation fan 6.
The bellows 101 protrudes outside the tray 3 for ease of assembly.
The working principle is that the base 1 is fixedly installed on the surface of a vehicle body through bolts, the bottom end of the tail gas treatment box 4 is placed on the upper surface of the tray 3 of the buffer seat 2, the pressing plate 8 is connected to the top end of the supporting column 5 through the mounting seat 7, the shock absorption seat 9 is pressed on the surface of the top plate 402 of the tail gas treatment box 4, the tail gas treatment box 4 is in conduction connection with the exhaust end of an internal combustion engine through the corrugated hose 401, the connection mode is flexible connection, the pressing plate 8 is connected to the top end of the supporting column 5 through the mounting seat 7, in the moving process of the vehicle body, the bottom plate 901 compresses the connecting rod 903 to open and close angularly, the connecting rod 903 is driven to reset under the elastic force of the spring 905, the buffer effect is good, the impact force is relieved, the air bag 202 and the shock absorption seat 9 have good buffer and shock absorption performances, the stability of the tail gas treatment box 4 is improved, the phenomenon of air leakage or fracture at the connection position is prevented, and the service life is prolonged; support column 5 surface mounting heat dissipation fan 6, the end of breathing in of heat dissipation fan 6 can be dismantled and connect filter plate 601, carries out the heat dissipation through heat dissipation fan 6 to tail gas treatment tank 4 and handles, reduces thermal piling up.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. An exhaust gas treatment device for an internal combustion engine, characterized in that: the tail gas treatment device comprises a base (1) and a tail gas treatment box (4), wherein the upper surface of the base (1) is provided with a buffer seat (2) fixedly connected tray (3), the buffer seat (2) is composed of a backing plate (201), an air bag (202) and a rubber plug (203), the air bag (202) is arranged on the surface of the backing plate (201), the rubber plug (203) is connected with the air inflation port of the air bag (202) in a plugging mode, the surface of the base (1) is close to a side position fixedly connected with a supporting column (5), the top end of the supporting column (5) is detachably connected with a mounting seat (7) through a bolt, the mounting seat (7) is fixedly connected to one side of a pressing plate (8), the lower surface of the pressing plate (8) is fixedly connected with a damping seat (9), and corrugated hoses (401) are arranged on the two side walls of the tail gas treatment box (4);
a heat dissipation fan (6) is arranged on the surface of the support column (5), and the air suction end of the heat dissipation fan (6) is detachably connected with the filter screen plate (601);
the shock absorption seat (9) comprises a bottom plate (901), a shaft seat (902), a connecting rod (903), a sliding block (904) and a spring (905), wherein the shaft seat (902) is fixedly connected to the upper surface of the bottom plate (901), and the upper part of the shaft seat (902) is movably connected with the sliding block (904) through the connecting rod (903);
the two connecting rods (903) are specifically two, a spring (905) is fixedly connected between the two connecting rods (903), and the spring (905) and the bottom plate (901) are arranged in parallel.
2. The exhaust gas treatment device for an internal combustion engine according to claim 1, wherein: the top end of the tail gas treatment box (4) is fixedly connected with a top plate (402), and rubber strips (403) are uniformly distributed on the upper surface of the top plate (402).
3. The exhaust gas treatment device for an internal combustion engine according to claim 1, characterized in that: the tail gas treatment box (4) is positioned between the tray (3) and the shock absorption seat (9).
4. The exhaust gas treatment device for an internal combustion engine according to claim 1, wherein: the tail gas treatment box (4) is positioned on one side of the heat dissipation fan (6).
5. The exhaust gas treatment device for an internal combustion engine according to claim 1, characterized in that: the corrugated hose (401) protrudes outside the tray (3).
CN202011454847.9A 2020-12-10 2020-12-10 Tail gas treatment device for internal combustion engine Active CN112610322B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011454847.9A CN112610322B (en) 2020-12-10 2020-12-10 Tail gas treatment device for internal combustion engine

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Application Number Priority Date Filing Date Title
CN202011454847.9A CN112610322B (en) 2020-12-10 2020-12-10 Tail gas treatment device for internal combustion engine

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CN112610322A CN112610322A (en) 2021-04-06
CN112610322B true CN112610322B (en) 2022-11-25

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113187585B (en) * 2021-07-02 2021-09-07 山东赛马力发电设备有限公司 Tail gas treatment device for internal combustion engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209743011U (en) * 2019-03-13 2019-12-06 爱民诺排气控制系统(昆山)有限公司 Vehicle tail gas eliminating device
CN210289890U (en) * 2019-05-15 2020-04-10 宁夏德大气体开发科技有限公司 Carbon dioxide recovery unit in tail gas
CN210462250U (en) * 2019-08-26 2020-05-05 苏州佳伟通环保科技有限公司 A fixed knot constructs for environment-friendly exhaust treatment device
CN110714826B (en) * 2019-10-31 2020-07-24 进顺汽车零部件如皋有限公司 Automobile exhaust pipe decorative ring with deep hole electroplating hanger
CN211144606U (en) * 2019-11-09 2020-07-31 安徽省英菲尼科技股份有限公司 Energy-saving emission-reducing silencer of diesel generating set
CN211500775U (en) * 2019-12-17 2020-09-15 何晓东 Stable support for automobile exhaust pipe
CN211975123U (en) * 2020-04-24 2020-11-20 江苏海事职业技术学院 A blender for diesel engine tail gas treatment

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