CN104594993A - Silencer for internal combustion engine of light truck - Google Patents

Silencer for internal combustion engine of light truck Download PDF

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Publication number
CN104594993A
CN104594993A CN201510046416.1A CN201510046416A CN104594993A CN 104594993 A CN104594993 A CN 104594993A CN 201510046416 A CN201510046416 A CN 201510046416A CN 104594993 A CN104594993 A CN 104594993A
Authority
CN
China
Prior art keywords
air inlet
pipe
combustion engine
sleeve
internal combustion
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
CN201510046416.1A
Other languages
Chinese (zh)
Inventor
陈雪琴
陈明
许言
徐寅
李彬
刘思远
刘光金
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.)
HEFEI HUILING AUTOMOBILE PARTS Co Ltd
Original Assignee
HEFEI HUILING AUTOMOBILE 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 HEFEI HUILING AUTOMOBILE PARTS Co Ltd filed Critical HEFEI HUILING AUTOMOBILE PARTS Co Ltd
Priority to CN201510046416.1A priority Critical patent/CN104594993A/en
Publication of CN104594993A publication Critical patent/CN104594993A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a silencer for an internal combustion engine of a light truck. The silencer comprises a silencer shell provided with end covers at two ends, wherein the end covers at the two ends are fixedly provided with an air inlet inner pipe which penetrates through the silencer shell; the two ends of the air inlet inner pipe are connected with an air inlet steel pipe and an air outlet steel pipe respectively; the air inlet inner pipe is divided into left and right parts by a plug on the middle part; the outer walls of the two parts are both provided with penetrative air holes; a sleeve sleeves the outer side of the left half part of the air inlet inner pipe; the two ends of the sleeve are both connected with partition plates; the partition plates are provided with through holes; the space between the sleeve and the inner wall of the silencer shell is filled with glass fiber. The exhaust back pressure can achieve the optimal effect; the power performance of the engine is not reduced due to overlarge exhaust back pressure; through a multiple noise reduction structure, the noise at low, medium and high frequency bands in an exhaust emission process of the internal combustion engine is effectively reduced, and a good noise reduction effect is achieved.

Description

Light truck muffler for internal combustion engine
technical field:
The present invention relates to mobile muffler field, particularly a kind of light truck muffler for internal combustion engine.
background technique:
Along with the requirement of national environmental protection, the control of motor vehicle emission and noise improves day by day, and the performance of car combustion engine is also constantly upgrading lifting, and light truck strides forward to high-end gradually, and component silencing apparatus is thereupon also in requisition for lifting.
This baffler is exclusively used in a high-end light truck, the effect that can realize good reduction noise in less vehicle bottom space, simultaneously also sturdy and durable, not fragile.
summary of the invention:
For solving the deficiencies in the prior art, the invention provides the light truck muffler for internal combustion engine of a kind of reasonable in design, good working effect.
The technical solution used in the present invention is:
Light truck muffler for internal combustion engine, comprise the muffler shell that two ends are provided with end cap, it is characterized in that: the end cap at described two ends to be fixed with in air inlet pipe through muffler shell, in air inlet, the two ends of pipe connect air inlet steel pipe respectively and to give vent to anger steel pipe, and in air inlet, pipe is divided into left and right two-part by the plug at middle part, the outer wall of two parts is equipped with the pore run through; Its left side overcoat has sleeve, and the two ends of sleeve are all connected with dividing plate, and dividing plate is provided with perforation, adopts glass fibre to fill between sleeve and the inwall of muffler shell.
Described light truck muffler for internal combustion engine, is characterized in that: described air inlet steel pipe and steel tube end part of giving vent to anger are connected to inlet flange and flange of giving vent to anger.
Compared with prior art, beneficial effect of the present invention is:
Exhaust back pressure of the present invention can reach optimum efficiency, motor can not reduce power performance because exhaust back pressure is excessive, through multiple denoising structure, effectively reduce the noise of the basic, normal, high each frequency range in engine exhaust gas discharge process, play good noise reduction.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
embodiment:
Below in conjunction with accompanying drawing, by embodiment, the present invention is described in further detail:
Light truck muffler for internal combustion engine, comprise the muffler shell 1 that two ends are provided with end cap 2, the end cap 2 at two ends is fixed with pipe 3 in air inlet and passes muffler shell 1, in air inlet, the two ends of pipe 3 connect air inlet steel pipe 4 and steel pipe 5 of giving vent to anger respectively, and in air inlet, pipe 3 is divided into left and right two-part by the plug 6 at middle part, the outer wall of two parts is equipped with the pore run through; Its left side overcoat has sleeve 7, the two ends of sleeve 7 are all connected with dividing plate 8, dividing plate 8 is provided with perforation, adopts glass fibre 9 to fill between the inwall of sleeve 7 and muffler shell 1, and air inlet steel pipe 4 and steel pipe 5 end of giving vent to anger are connected to inlet flange 10 and flange 11 of giving vent to anger.
This silencing apparatus is impedance composite muffler, arrow signal engine exhaust gas flowing direction.In air inlet, stream pipe taken as the leading factor by pipe 3, tube wall is drilled with a lot of aperture, when air-flow passes through, air-flow is stopped by plug 6, air-flow is passed through through small holes, the gas in enclosed cavity is made also to cause vibration by aperture, gas (gas column) in aperture also vibrates simultaneously, and when the vibration frequency in air-flow is identical with the natural frequency of enclosed cavity, resonate, thus reduce noise, sleeve 7 is perforated plate, filtered by sleeve 7 again by pipe in air inlet 3 aperture air-flow out, reduce the noise of certain frequency again.Simultaneously use glass fibre 9 to absorb sound material at outer wall, by the sound wave in air-flow, because of the damped vibration of sound-absorbing material, make acoustic energy transform into frictional heat energy, middle and high frequency noise can be reduced.Then air-flow is by 8 dividing plates in chamber two, reduces noise equally through small holes gas responance, finally, and waste gas exhaust silencer cylindrical shell.
Above-described embodiment is only preferably mode of execution of the present invention, and in addition, the present invention can also have other implementations.It should be noted that, under the prerequisite not departing from the present invention's design, any apparent improvement and modification all should fall within protection scope of the present invention.

Claims (2)

1. light truck muffler for internal combustion engine, comprise the muffler shell that two ends are provided with end cap, it is characterized in that: the end cap at described two ends to be fixed with in air inlet pipe through muffler shell, in air inlet, the two ends of pipe connect air inlet steel pipe respectively and to give vent to anger steel pipe, and in air inlet, pipe is divided into left and right two-part by the plug at middle part, the outer wall of two parts is equipped with the pore run through; Its left side overcoat has sleeve, and the two ends of sleeve are all connected with dividing plate, and dividing plate is provided with perforation, adopts glass fibre to fill between sleeve and the inwall of muffler shell.
2. light truck muffler for internal combustion engine according to claim 1, is characterized in that: described air inlet steel pipe and steel tube end part of giving vent to anger are connected to inlet flange and flange of giving vent to anger.
CN201510046416.1A 2015-01-29 2015-01-29 Silencer for internal combustion engine of light truck Pending CN104594993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510046416.1A CN104594993A (en) 2015-01-29 2015-01-29 Silencer for internal combustion engine of light truck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510046416.1A CN104594993A (en) 2015-01-29 2015-01-29 Silencer for internal combustion engine of light truck

Publications (1)

Publication Number Publication Date
CN104594993A true CN104594993A (en) 2015-05-06

Family

ID=53120998

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510046416.1A Pending CN104594993A (en) 2015-01-29 2015-01-29 Silencer for internal combustion engine of light truck

Country Status (1)

Country Link
CN (1) CN104594993A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106238563A (en) * 2016-08-11 2016-12-21 成都陵川常友汽车部件制造有限公司 Stamping system for automobile engine noise reduction elements
CN111102037A (en) * 2019-12-18 2020-05-05 湘潭大学 Engine catalysis type particulate trap with amortization guiding device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976711U (en) * 1982-11-16 1984-05-24
JPH10115215A (en) * 1996-10-08 1998-05-06 Tokyo Roki Kk Catalyst exhausting system for internal combustion engine
KR20030037934A (en) * 2001-11-07 2003-05-16 현대자동차주식회사 Structure of muffler for decreasing noise of automobile
CN201173143Y (en) * 2008-03-27 2008-12-31 上海红湖汽车排气系统工程技术有限公司 Low noise automobile exhaust silencer
CN104265413A (en) * 2014-09-22 2015-01-07 诸城市海得威机械有限公司 Impedance complex silencer for tractor
CN204099002U (en) * 2014-09-02 2015-01-14 北京汽车股份有限公司 Vent systems silencing pot and automobile
CN204436545U (en) * 2015-01-29 2015-07-01 合肥汇凌汽车零部件有限公司 Light truck muffler for internal combustion engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976711U (en) * 1982-11-16 1984-05-24
JPH10115215A (en) * 1996-10-08 1998-05-06 Tokyo Roki Kk Catalyst exhausting system for internal combustion engine
KR20030037934A (en) * 2001-11-07 2003-05-16 현대자동차주식회사 Structure of muffler for decreasing noise of automobile
CN201173143Y (en) * 2008-03-27 2008-12-31 上海红湖汽车排气系统工程技术有限公司 Low noise automobile exhaust silencer
CN204099002U (en) * 2014-09-02 2015-01-14 北京汽车股份有限公司 Vent systems silencing pot and automobile
CN104265413A (en) * 2014-09-22 2015-01-07 诸城市海得威机械有限公司 Impedance complex silencer for tractor
CN204436545U (en) * 2015-01-29 2015-07-01 合肥汇凌汽车零部件有限公司 Light truck muffler for internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106238563A (en) * 2016-08-11 2016-12-21 成都陵川常友汽车部件制造有限公司 Stamping system for automobile engine noise reduction elements
CN106238563B (en) * 2016-08-11 2019-03-05 稻熊精密冲压(中山)有限公司 Stamping system for automobile engine noise reduction elements
CN111102037A (en) * 2019-12-18 2020-05-05 湘潭大学 Engine catalysis type particulate trap with amortization guiding device

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Application publication date: 20150506