CN102418581A - Three-way catalytic silencer for vehicle - Google Patents

Three-way catalytic silencer for vehicle Download PDF

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Publication number
CN102418581A
CN102418581A CN2011104289676A CN201110428967A CN102418581A CN 102418581 A CN102418581 A CN 102418581A CN 2011104289676 A CN2011104289676 A CN 2011104289676A CN 201110428967 A CN201110428967 A CN 201110428967A CN 102418581 A CN102418581 A CN 102418581A
Authority
CN
China
Prior art keywords
cylindrical shell
outlet pipe
suction tude
end cover
rear end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011104289676A
Other languages
Chinese (zh)
Inventor
于邦海
姜刚
张运和
孙猛
杨真
娄须宽
侯川川
翟春亮
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.)
Zhengzhou Jingyida Auto Parts Co Ltd
Original Assignee
Zhengzhou Jingyida Auto Parts Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Jingyida Auto Parts Co Ltd filed Critical Zhengzhou Jingyida Auto Parts Co Ltd
Priority to CN2011104289676A priority Critical patent/CN102418581A/en
Publication of CN102418581A publication Critical patent/CN102418581A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The invention relates to a three-way catalytic silencer for a vehicle. The silencer comprises a barrel, wherein a front end cover and a rear end cover are arranged at two ends of the barrel; an air inlet pipe is arranged at the end, which is close to the front end cover, in the barrel; an air outlet pipe is arranged at the end, which is close to the rear end cover, in the barrel and is communicated with the barrel and a tail pipe; a catalytic converter is arranged on the middle part of the barrel and is fixed with the barrel through a first clapboard and a second clapboard; the first clapboard and the second clapboard are arranged at two ends of the catalytic converter; flat holes are uniformly formed on the second clapboard; an air outlet hole is formed on the air inlet pipe; the air outlet pipe is fixed with the barrel through a third clapboard and the rear end cover; a vent flanged hole is formed on the third clapboard; and an air hole is formed on the air outlet pipe. The three-way catalytic converter and the silencer are combined into an integrated structure, and a tail gas purifying function and a silencing function which are required by the national standard IV are realized simultaneously; meanwhile, due to the integrated structure, the requirement on space is reduced, the silencer has a compact structure and is highly integrated, and an exhaust system is easy to arrange.

Description

Automobile-used three-element catalytic silencing apparatus
Technical field:
The present invention relates to a kind of environment-friendly products technical field of automobile emissions standards, be specifically related to a kind of automobile-used three-element catalytic silencing apparatus that can make the car load that assembles gas engine reach national IV level environment protection emission and noise standard.
Background technique:
The vent systems of state's IV gas engine passenger vehicle is made up of the gas exhaust manifold, exhaust expansion bellows, three-way catalytic converter, silencing apparatus and the tailpipe that connect engine exhaust port at present.Rise in the three-way catalytic converter on the catalyst carrier of catalysis and have the aperture that is coated with full catalyzer, tail gas reacts under the effect of catalyzer during through aperture, thereby reduces the CH in the gas engine tail gas 4,, harmful gas content such as CO, guarantee that the tail gas that is discharged in the atmosphere reaches state's IV standard.Silencing apparatus utilization sudden change or bypass resonant cavity through pipeline section etc. causes that in the propagation of sound process change of impedance produces the reflection of acoustic energy, interference; Or utilize the continuous noise that absorbs in the exhaust of eliminating the noise; Thereby reduce exhaust sound to external radiation, reach the noise elimination purpose.
Parts in the vent systems of existing state IV gas engine passenger vehicle are many more, and structure is more complicated, and the back pressure of generation is just big more.The fuel consumption of motor is directly proportional with the back pressure value of vent systems.Back pressure is big more, and fuel consumption is just big more, and fuel consumption is big more, and the competitive ability of car load is just low more.
Summary of the invention:
In sum, in order to overcome the deficiency of existing technology problem, the invention provides a kind of automobile-used three-element catalytic silencing apparatus, it is that three-way catalytic converter and silencing apparatus are combined into one the formula structure, realizes the tail gas clean-up and the noise elimination function of state's IV standard-required simultaneously.Integral structure has reduced the demand to the space simultaneously, makes acoustic wave filter structure compact, has the integrated of height, helps vent systems and arranges.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is:
A kind of automobile-used three-element catalytic silencing apparatus, wherein: comprise cylindrical shell, front cover, rear end cover, suction tude, steam outlet pipe and catalytic converter, front cover and rear end cover are separately positioned on the two ends of cylindrical shell; Suction tude is arranged on the interior end near front cover of cylindrical shell, and suction tude is communicated with cylindrical shell and engine exhaust pipe, and steam outlet pipe is arranged on the interior end near rear end cover of cylindrical shell; Steam outlet pipe is communicated with cylindrical shell and tail pipe; Catalytic converter is arranged on the middle part of cylindrical shell and fixes through first dividing plate and second partition and cylindrical shell, and first dividing plate and second partition are separately positioned on the two ends of catalytic converter, evenly are provided with flat hole on the second partition; Suction tude is provided with air outlet hole; Steam outlet pipe is fixed through the 3rd dividing plate and rear end cover and cylindrical shell, and the 3rd dividing plate is provided with the ventilation hole flanging, and steam outlet pipe is provided with pore.
Technological scheme of the present invention can also be achieved in that described suction tude upper end is provided with connecting tube, and the suction tude lower end is provided with the air inlet closure plate, and suction tude is connected with waste pipe through connecting tube.
Technological scheme of the present invention can also be achieved in that the end that described steam outlet pipe is arranged in the cylindrical shell is provided with the closure plate of giving vent to anger, and the closure plate of giving vent to anger is provided with pore.
Technological scheme of the present invention can also be achieved in that the fixed interface of described front cover and cylindrical shell, rear end cover and cylindrical shell all adopts the seaming edge sealing.
Technological scheme of the present invention can also be achieved in that described first dividing plate and cylinder inboard wall and catalytic converter all fix through full weld, and second partition and cylinder inboard wall and catalytic converter are all fixed through the section solid welding.
Technological scheme of the present invention can also be achieved in that described front cover, cylindrical shell, rear end cover, suction tude, first dividing plate, second partition, the 3rd dividing plate and steam outlet pipe all adopt the stainless steel material of corrosion-and high-temp-resistant.
Technological scheme of the present invention can also be achieved in that described connecting tube, air inlet closure plate and the closure plate of giving vent to anger all adopt the stainless steel material of corrosion-and high-temp-resistant.
Beneficial effect of the present invention is:
1, the present invention is combined into one the formula structure with three-way catalytic converter and silencing apparatus, realizes that simultaneously national IV level discharge tail gas purifies and noise elimination function.On the one hand through CH in the tail gas of three-way catalytic converter 4, harmful gas content such as CO reaches national IV level emission standard.The three-element catalytic silencing apparatus utilizes acoustic constructions such as expansion cavity to eliminate the noise on the other hand, possesses decrease of noise functions, and the tail gas noise through the three-element catalytic silencing apparatus satisfies NBS.Simultaneously, integral structure has reduced the demand to the space, helps vent systems and arranges.Simultaneously compact structure of the present invention, have the integrated of height.In addition, its air inlet/outlet adopts flange-type to be connected with gas exhaust piping, can avoid rocking, throwing off between three-element catalytic silencing apparatus air inlet/outlet and gas exhaust piping, and reliability property is higher.
2, front cover of the present invention, suction tude, connecting tube, closure plate, dividing plate, steam outlet pipe, rear end cover all adopt high temperature resistant, corrosion resistant stainless steel material; Satisfy that the gas engine temperature is higher, tail gas has corrosive performance characteristic; Outward appearance is more attractive in appearance, longer service life.
3, on the suction tude of the present invention a large amount of air outlet holes is set, when playing the noise elimination effect, can also guarantees that air-flow is unobstructed, avoid gas to increase back pressure; Second partition of the present invention is provided with flat hole, utilizes cavity and flat hole between cylindrical shell and the catalytic converter, reaches the purpose that reduces noise, reduces gas backpressure; On the steam outlet pipe of the present invention and the closure plate of giving vent to anger a large amount of pores is set, simultaneously the ventilation hole flanging is set on the 3rd dividing plate, utilize cavity, pore and ventilation hole flanging between steam outlet pipe and the cylindrical shell to reach the purpose that reduces noise reduction gas backpressure.
4, the present invention is simple in structure, and is easy to use, safe and reliable; Make simply, be fit to the requirement of mass production, reduced a large amount of annex of original passenger vehicle vent systems; Low cost of manufacture; Can make the passenger vehicle exhaust emissions reach national IV level emission standard, satisfy environmental requirement, improve the market competitiveness of enterprise.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 looks schematic representation for the left side of Fig. 1 of the present invention;
Fig. 3 is the A-A cross-sectional schematic of Fig. 1 of the present invention;
Fig. 4 is the B-B cross-sectional schematic of Fig. 1 of the present invention;
Fig. 5 is the present invention's scheme of installation on the bus engine vent systems.
Embodiment:
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; A kind of automobile-used three-element catalytic silencing apparatus; Comprise cylindrical shell 5, front cover 3, rear end cover 11, suction tude 2, steam outlet pipe 10 and catalytic converter 7; Front cover 3 and rear end cover 11 are separately positioned on the two ends of cylindrical shell 5, and front cover 3 all adopts the seaming edge sealing with cylindrical shell 5, rear end cover 11 with the fixed interface of cylindrical shell 5.Suction tude 2 is arranged on cylindrical shell 5 interior ends near front cover 3; Suction tude 2 is communicated with cylindrical shell 5 and engine exhaust pipe 17, and suction tude 2 upper ends are provided with connecting tube 1, and suction tude 2 lower ends are provided with air inlet closure plate 4; Suction tude 2 is connected with waste pipe 17 through connecting tube 1; The tube wall of suction tude 2 is provided with the air outlet hole of 1080 Φ 6, and steam outlet pipe 10 is arranged on cylindrical shell 5 interior ends near rear end cover 11, and steam outlet pipe 10 is communicated with cylindrical shells 5 and tail pipes 18; Steam outlet pipe 10 is fixing with cylindrical shell 5 through the 3rd dividing plate 9 and rear end cover 11; The 3rd dividing plate 9 is provided with the ventilation hole flanging 20 of two Φ 76, and the end that steam outlet pipe 10 is arranged in the cylindrical shell 5 is provided with the closure plate 12 of giving vent to anger, and the closure plate 12 of giving vent to anger is provided with the pore of 87 Φ 6; The tube wall of steam outlet pipe 10 is provided with the pore of 720 Φ 6; Catalytic converter 7 is arranged on the middle part of cylindrical shell 5 and fixes with cylindrical shell 5 through first dividing plate 6 and second partition 8, and first dividing plate 6 and second partition 8 are separately positioned on the two ends of catalytic converter 7, evenly are provided with the flat hole 19 of 6 Φ 30 on the second partition 8; First dividing plate 6 is all fixed through full weld with cylindrical shell 5 inwalls and catalytic converter 7, and second partition 8 is all fixed through the section solid welding with cylindrical shell 5 inwalls and catalytic converter 7.Front cover 3, cylindrical shell 5, rear end cover 11, suction tude 2, first dividing plate 6, second partition 8, the 3rd dividing plate 9, steam outlet pipe 10, connecting tube 1, air inlet closure plate 4 and the closure plate 12 of giving vent to anger all adopt the stainless steel material of corrosion-and high-temp-resistant.
As shown in Figure 5, connecting tube 1 of the present invention is connected with engine exhaust pipe 17, steam outlet pipe 10 is connected with tailpipe 18.During use, the waste gas of engine producing gets into suction tude 2 of the present invention through outlet pipe 17, and the air outlet hole diffusion noise elimination back of process suction tude 2 gets into air-inlet cavity 13; Get into the catalytic converter 7 inner chemical reactions that take place then, reduce content of harmful gas such as CH4, CO; Get into exhaust cavity 15 again, utilize the space in catalytic converter chamber 14, further reduce exhaust sound, alleviate exhaust back pressure; When exhaust back pressure hanged down, waste gas got into outlet chamber 16 through the hole flanging of dividing plate, gets into steam outlet pipe 10 through the exhaust port on the steam outlet pipe 10 again, and part waste gas directly got into steam outlet pipe 10 through the pore on the closure plate 12 when exhaust back pressure was high; Last waste gas flows out the present invention through steam outlet pipe 10, discharges from tailpipe 18 at last.
Be noted that; The foregoing description is to the explanation of technological scheme of the present invention and unrestricted; Other modification that is equal to replacement or makes of affiliated technical field those of ordinary skill according to existing technology; As long as do not exceed the thinking and the scope of technological scheme of the present invention, all should be included within the interest field of the presently claimed invention.

Claims (7)

1. automobile-used three-element catalytic silencing apparatus; It is characterized in that: comprise cylindrical shell (5), front cover (3), rear end cover (11), suction tude (2), steam outlet pipe (10) and catalytic converter (7); Front cover (3) and rear end cover (11) are separately positioned on the two ends of cylindrical shell (5); Suction tude (2) is arranged on the interior end near front cover (3) of cylindrical shell (5), and suction tude (2) is communicated with cylindrical shell (5) and engine exhaust pipe (17), and steam outlet pipe (10) is arranged on the interior end near rear end cover (11) of cylindrical shell (5); Steam outlet pipe (10) is communicated with cylindrical shell (5) and tail pipe (18); Catalytic converter (7) is arranged on the middle part of cylindrical shell (5) and fixes with cylindrical shell (5) through first dividing plate (6) and second partition (8), and first dividing plate (6) and second partition (8) are separately positioned on the two ends of catalytic converter (7), evenly are provided with flat hole (19) on the second partition (8); Suction tude (2) is provided with air outlet hole; Steam outlet pipe (10) is fixing with cylindrical shell (5) through the 3rd dividing plate (9) and rear end cover (11), and the 3rd dividing plate (9) is provided with ventilation hole flanging (20), and steam outlet pipe (10) is provided with pore.
2. automobile-used three-element catalytic silencing apparatus according to claim 1; It is characterized in that: described suction tude (2) upper end is provided with connecting tube (1); Suction tude (2) lower end is provided with air inlet closure plate (4), and suction tude (2) is connected with waste pipe (17) through connecting tube (1).
3. automobile-used three-element catalytic silencing apparatus according to claim 1 is characterized in that: the end that described steam outlet pipe (10) is arranged in the cylindrical shell (5) is provided with the closure plate of giving vent to anger (12), and the closure plate of giving vent to anger (12) is provided with pore.
4. automobile-used three-element catalytic silencing apparatus according to claim 1 is characterized in that: described front cover (3) all adopts the seaming edge sealing with cylindrical shell (5), rear end cover (11) with the fixed interface of cylindrical shell (5).
5. automobile-used three-element catalytic silencing apparatus according to claim 1; It is characterized in that: described first dividing plate (6) is all fixed through full weld with cylindrical shell (5) inwall and catalytic converter (7), and second partition (8) is all fixed through the section solid welding with cylindrical shell (5) inwall and catalytic converter (7).
6. automobile-used three-element catalytic silencing apparatus according to claim 1 is characterized in that: described front cover (3), cylindrical shell (5), rear end cover (11), suction tude (2), first dividing plate (6), second partition (8), the 3rd dividing plate (9) and steam outlet pipe (10) all adopt the stainless steel material of corrosion-and high-temp-resistant.
7. according to claim 2 or 3 described automobile-used three-element catalytic silencing apparatuss, it is characterized in that: described connecting tube (1), air inlet closure plate (4) and the closure plate of giving vent to anger (12) all adopt the stainless steel material of corrosion-and high-temp-resistant.
CN2011104289676A 2011-12-20 2011-12-20 Three-way catalytic silencer for vehicle Pending CN102418581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011104289676A CN102418581A (en) 2011-12-20 2011-12-20 Three-way catalytic silencer for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011104289676A CN102418581A (en) 2011-12-20 2011-12-20 Three-way catalytic silencer for vehicle

Publications (1)

Publication Number Publication Date
CN102418581A true CN102418581A (en) 2012-04-18

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Family Applications (1)

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Country Status (1)

Country Link
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777235A (en) * 2012-08-17 2012-11-14 徐查庆 Multifunctional environment-friendly silencer
CN103726913A (en) * 2014-01-21 2014-04-16 十堰汇铂环境科技有限公司 Three-way vehicle catalytic converter assembly and manufacturing and packaging technology thereof
CN106224060A (en) * 2016-09-19 2016-12-14 江阴华音陶瓷机电科技有限公司 Catalytic regeneration type is without muffler tube type deafener
CN108533368A (en) * 2018-06-14 2018-09-14 山东沃蓝环保设备有限公司 A kind of exhaust gas cleaner of installation heating device
CN108561214A (en) * 2018-01-10 2018-09-21 苏州极汇科技有限公司 A kind of engines tail gas processing system and its method
CN108868970A (en) * 2018-06-14 2018-11-23 山东沃蓝环保设备有限公司 A kind of exhaust gas processing device using plug-in connection method
CN111550301A (en) * 2020-05-25 2020-08-18 安阳职业技术学院 Nozzle type catalytic silencer for automobile diesel engine
CN113775392B (en) * 2021-09-24 2022-06-21 无锡威孚力达催化净化器有限责任公司 Aftertreatment structure and system suitable for natural gas engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201714465U (en) * 2010-07-14 2011-01-19 陈庆东 Reduction catalyst
CN102278180A (en) * 2011-05-19 2011-12-14 刘光文 Exhaust gas catalytic purification silencer of engine
CN202431335U (en) * 2011-12-20 2012-09-12 郑州精益达汽车零部件有限公司 Automotive three-way catalytic silencer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201714465U (en) * 2010-07-14 2011-01-19 陈庆东 Reduction catalyst
CN102278180A (en) * 2011-05-19 2011-12-14 刘光文 Exhaust gas catalytic purification silencer of engine
CN202431335U (en) * 2011-12-20 2012-09-12 郑州精益达汽车零部件有限公司 Automotive three-way catalytic silencer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777235A (en) * 2012-08-17 2012-11-14 徐查庆 Multifunctional environment-friendly silencer
CN103726913A (en) * 2014-01-21 2014-04-16 十堰汇铂环境科技有限公司 Three-way vehicle catalytic converter assembly and manufacturing and packaging technology thereof
CN103726913B (en) * 2014-01-21 2016-01-20 十堰汇铂环境科技有限公司 A kind of automobile three-way catalysts assembly and manufacturing and encapsulation technique thereof
CN106224060A (en) * 2016-09-19 2016-12-14 江阴华音陶瓷机电科技有限公司 Catalytic regeneration type is without muffler tube type deafener
CN108561214A (en) * 2018-01-10 2018-09-21 苏州极汇科技有限公司 A kind of engines tail gas processing system and its method
CN108561214B (en) * 2018-01-10 2020-03-20 吕衍荣 Engine tail gas treatment system and method thereof
CN108533368A (en) * 2018-06-14 2018-09-14 山东沃蓝环保设备有限公司 A kind of exhaust gas cleaner of installation heating device
CN108868970A (en) * 2018-06-14 2018-11-23 山东沃蓝环保设备有限公司 A kind of exhaust gas processing device using plug-in connection method
CN111550301A (en) * 2020-05-25 2020-08-18 安阳职业技术学院 Nozzle type catalytic silencer for automobile diesel engine
CN111550301B (en) * 2020-05-25 2022-05-17 安阳职业技术学院 Nozzle type catalytic silencer for automobile diesel engine
CN113775392B (en) * 2021-09-24 2022-06-21 无锡威孚力达催化净化器有限责任公司 Aftertreatment structure and system suitable for natural gas engine

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Application publication date: 20120418