CN103016102B - Silencer for exhaust system of gasoline engine - Google Patents
Silencer for exhaust system of gasoline engine Download PDFInfo
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- CN103016102B CN103016102B CN201210550357.8A CN201210550357A CN103016102B CN 103016102 B CN103016102 B CN 103016102B CN 201210550357 A CN201210550357 A CN 201210550357A CN 103016102 B CN103016102 B CN 103016102B
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- Exhaust Silencers (AREA)
Abstract
The invention provides a silencer for an exhaust system of a gasoline engine. A silencing assembly of the silencer comprises a one-hole tray, a two-hole tray, a three-hole tray, a connecting pipe, a first-stage porous pipe, a first-stage silencing pipe, a second-stage silencing pipe and a guide pipe, wherein the one-hole tray, the two-hole tray and the three-hole tray divide a silencer cylinder into a first cavity, a second cavity and a third cavity; the first-stage silencing pipe is arranged in the two-hole tray in a penetration manner, one end of the first-stage silencing pipe is opened and is arranged in the first cavity to be opposite to an exhaust end of the first-stage porous pipe, and the other end of the first-stage silencing pipe is arranged in the second cavity and is provided with a blanking cap II to form a blind end; the second-stage silencing pipe is arranged on the two-hole tray and the three-hole tray in a penetration manner to communicate the first cavity and the second cavity; and the guide pipe and a tail pipe are both arranged on the three-hole tray, one ends of the guide pipe and the tail pipe are opened and are both arranged in the second cavity, the other end of the guide pipe is arranged in the third cavity, and the other end of the tail pipe is an exhaust end which is arranged outside the silencer cylinder. The silencer disclosed by the invention can be used for depleting kinetic energy and damping vibration of airflow stage by stage so as to effectively reduce the noise during exhaust.
Description
Technical field
The present invention relates to a kind of mechanical sound insulating devices, more particularly, relate to a kind of silencing apparatus for exhaust system of gasoline engine.
Background technique
In petrolic waste air process, the pressure of waste gas will produce continuous print pulsing airflow at exhaust pipe mouth place, this pulse gas high-speed punching exhaust mouth, and its pressure and speed and ambient air differ greatly, and will produce ear-piercing tail gas noise.Therefore, Motor Vehicle generally all needs to fix a silencer on engine exhaust pipe, and silencing apparatus, for consuming flowed energy, reduces the pressure of air-flow, can play the effect reducing noise.
According to principle of interference, silencing apparatus has absorption, reflection two kinds of basic quieter manner, and absorption silencer makes changes mechanical energy be that thermal energy consumption is fallen by the friction of waste gas on the sound absorbing materials such as glass fibre, Steel Fibre and asbestos; Reflection muffler then has the harmony chamber of multiple series connection and the porous reflection tube of different length to interconnect, and waste gas, wherein through reflection repeatedly, collision, expansion, cooling and reduce its pressure, alleviates vibration and energy.
Reactive muffler of the prior art belongs to reflection muffler, and the air-flow of its kinetic energy directly impacts on the dividing plate of silencing apparatus inside, or directly impacts on the blanking cover of perforated tube.Although this silencing apparatus has certain noise elimination effect, because its waste gas path of travel formed of silencing apparatus of this structure is not too reasonable, causes noise elimination insufficient, and effectively can not reduce the kinetic energy of air-flow, make soundproof effect not obvious; And air-flow directly impacts metal makes metal vibration large, and the noise causing metal vibration to cause is also larger.Meanwhile, this acoustic wave filter structure more complicated, reach same soundproof effect muffler volume used comparatively large, cost is higher.Along with the raising of Motor Vehicle rotating speed, existing silencing apparatus effectively can not improve petrol engine and run the noise pollution caused environment, needs constantly to improve.
Summary of the invention
The object of the invention is to overcome shortcoming of the prior art with not enough, there is provided structure simply a kind of silencing apparatus for exhaust system of gasoline engine, continuous impulse pneumatic noise in engine exhaust process can be eliminated by this silencing apparatus to a great extent, thus the air-flow making silencing apparatus tail end discharge is steadily soft, reduce exhaust noise to a great extent, reduce the noise pollution because petrolic operation causes.
In order to achieve the above object, the present invention is achieved by following technical proposals: a kind of silencing apparatus for exhaust system of gasoline engine, comprise connect successively front exhaust pipe, silencer cylinder and the catalytic converter, sound attenuation assembly, tail pipe and the tail-hood that are arranged in silencer cylinder; It is characterized in that: described sound attenuation assembly comprises a hole dish, two hole dish, three hole dish, connecting tube, one-level perforated tube, one-level hush tube, secondary hush tube and honeycomb duct, wherein a hole dish, two Die Hesan hole, hole dish the first cavity, the second cavity and the 3rd cavity that silencer cylinder is divided into successively; Described connecting tube interts on a hole dish, the one end being positioned at a dish side, hole is connected with catalytic converter prime tail end, the one end being positioned at a hole dish opposite side is arranged on the first cavity and is communicated with the inlet end of one-level perforated tube, and the exhaust end of one-level perforated tube is positioned at the first cavity; Described one-level hush tube interts on two hole dish, and its one end open and opening end are arranged in the first cavity relative with the exhaust end of one-level perforated tube, and it is interior and be provided with blanking cover dimorphism and become cecum that the other end is arranged on the second cavity; Described secondary hush tube interts on two Die Hesan hole, hole dish, is communicated with the first cavity and the 3rd cavity; Described honeycomb duct and tail pipe all intert on three hole dish, its one end open and be all arranged in the second cavity, and the other end of honeycomb duct is arranged in the 3rd cavity, and the other end of tail pipe is that exhaust end is located at outside silencer cylinder.
By such scheme, directly mutually can liquidate one-level hush tube from the air-flow of one-level perforated tube discharge and cancel out each other, kinetic energy and the vibration of air-flow can be consumed, reach the effect reducing exhaust sound.Wherein, a hole dish, two hole Die Hesan hole dish and silencer cylinder matching internal are installed.
In order to realize the present invention better, the exhaust end port of described one-level perforated tube narrows gradually along the Way out of air-flow.This design suitably can regulate the flow direction of air-flow, and the air-flow concentrated area of discharging from one-level perforated tube is flowed to one-level hush tube.
The tube wall of described one-level perforated tube is provided with several the second sound attenuation holes.Second sound attenuation hole can play the effect reducing noise.
The described one-level hush tube port be arranged in the first cavity is horn opening; The total length of described one-level hush tube is greater than the half of its minimum pipe.The design of horn opening can receive the air-flow of discharging from one-level perforated tube exhaust end on a large scale.And the length of one-level hush tube determines according to the amplitude that liquidates of motor discharge tail gas impulse oscillation, this design can reach good noise reduction, and particularly for when high engine speeds operates, noise reduction is especially obvious.
Described one-level hush tube interts the first mesopore referring on two hole dish and be provided with opening indent in two hole dish, and one-level hush tube interts on two hole dish by the first mesopore; Be provided with the first position, hole of opening evagination above or below described first mesopore, secondary hush tube is interted on two hole dish by the first position, hole.One-level hush tube, by being provided with the first mesopore of opening indent, can intert on two hole dish more securely, and therefore the aperture of the first mesopore and the caliber of one-level hush tube match.The present invention, in order to solve leakage water problem, is provided with recess bottom two hole dish.
Be provided with the second mesopore in described three hole dish, the top of the second mesopore is provided with upper hole, and the below of the second mesopore is provided with lower opening position; The opening evagination of described second mesopore, position, upper hole and lower opening position.Tail pipe interts on three hole dish by the second mesopore, and honeycomb duct then interts on three hole dish by position, upper hole or lower opening position; And secondary hush tube is interted on two Die Hesan hole, hole dish by the position, upper hole of the first Wei Hesan hole, hole dish of two hole dish or lower opening position.The aperture of above described holes with the caliber of pipe that interts all match, and the opening evagination in hole, can make interted pipe more firm.Meanwhile, in order to solve leakage water problem, bottom three hole dish, be provided with recess.
The tube wall being located at the 3rd cavity at described secondary hush tube offers the first sound attenuation hole.
Described first sound attenuation hole refer to pipe circumferencial direction distribution through hole or refer to secondary hush tube facing to tail pipe sidewall on perforate.
Described secondary hush tube one end open and be arranged in the first cavity, the other end to be arranged in the 3rd cavity and to be provided with blanking cover one and forms cecum.
Secondary hush tube arranges the first sound attenuation hole and adds blanking cover one in its one end, then sound attenuation assembly of the present invention is that the combination forming three cavitys by two-stage noise elimination structure is formed, this structure makes the air-flow entering silencing apparatus carry out cancelling out each other in two-stage hush tube mutually liquidating, and consume the kinetic energy of air-flow and caused vibration thereof step by step, noise immune entrained by tail gas is progressively weakened, finally reach the effect outside the soft discharge silencing apparatus of air-flow, reduce exhaust noise to a great extent.The design of the first sound attenuation hole can make the gas after cancelling out each other in secondary hush tube be discharged to the 3rd cavity, and an effect is also had to the first sound attenuation hole of tail pipe sidewall: the pipe face of the gas shock tail pipe of discharge, can disperse, cushion and softening air-flow, thus reduce the noisemetallic clashing into and pound out.
The silencing apparatus that the present invention is used for exhaust system of gasoline engine is work like this:
(1) engine air flow enters one-level perforated tube from catalytic converter tail end by connecting tube, enters the one-level hush tube relative with one-level perforated tube exhaust end carry out one-level consumption from the major part of the engine air flow main flow of one-level perforated tube exhaust end outflow.First main flow pulsing airflow will clash into tube wall and the blanking cover two of one-level hush tube, consume a part of kinetic energy, now, pulsing airflow to airintake direction bounce-back constantly liquidates mutually with another part pulsing airflow rushing at one-level hush tube cecum, and relative highpressure is formed in one-level hush tube, in the mutual impact process of air-flow, soundproof effect can be reached.
(2) air-flow consuming a part of kinetic energy will enter secondary hush tube, pulsing airflow first clashes into again tube wall and the blanking cover one of secondary hush tube, again consume a part of kinetic energy, now, pulsing airflow to airintake direction bounce-back constantly liquidates mutually with another part pulsing airflow rushing at secondary hush tube cecum, and forming again relative highpressure at secondary hush tube rear, kinetic energy and the vibration thereof of pulsing airflow will consume a part again herein.
(3) after repeatedly consuming, eliminate kinetic energy and the vibration of pulsing airflow largely, make the air-flow in silencing apparatus keep steadily soft.Air-flow flows into the 3rd cavity by the first sound attenuation hole, then flows to the second cavity by honeycomb duct, steadily leniently discharges external environment, reduce exhaust noise largely finally by tail pipe.In whole process, air-flow is circuitous flow in the first cavity of silencing apparatus, the second cavity and the 3rd cavity, air-flow mutually liquidates in hush tube at different levels, and form relative highpressure at cecum, effectively consume the kinetic energy of air-flow, the metal vibration that mutually liquidating between air-flow causes is also relatively little, and the metallic sound of generation is also relatively little, effectively reduces exhaust sound.
Compared with prior art, tool of the present invention has the following advantages and beneficial effect:
1, the structure of silencing apparatus of the present invention is simple, multiple cavity is formed by noise elimination structure at different levels, this structure makes the air-flow entering silencing apparatus cancel out each other mutually to liquidate, and consume the kinetic energy of air-flow step by step, tail gas noise is progressively weakened, finally reach the effect outside the soft discharge silencing apparatus of air-flow, reduce exhaust noise to a great extent.
2, air-flow of the present invention mutually liquidates in hush tube at different levels, and form relative highpressure at cecum, effectively consume the kinetic energy of air-flow, the metal vibration that mutually liquidating between air-flow causes is also relatively little, the metallic sound produced is also relatively little, effectively reduces exhaust sound.
3, the design of the multiple cavity of the present invention, can extend gas circuit, adds the waiting time of air-flow in silencing apparatus, thus reduces pressure and the speed of air-flow, also plays the effect reducing exhaust sound.
4, the one-level perforated tube tail end of silencing apparatus of the present invention is the exhaust end of opening, without blanking cover, exhaust can be made unimpeded, thus make the power loss of motor little, reaches and promotes engine power and energy-conservation effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the silencing apparatus embodiment one of exhaust system of gasoline engine;
Fig. 2 is the front schematic view of two hole dish in Fig. 1;
Fig. 3 is the side schematic view of two hole dish in Fig. 1;
Fig. 4 is the front schematic view of three hole dish;
Fig. 5 is the side schematic view of three hole dish;
Fig. 6 is the structural representation of the present invention for the silencing apparatus embodiment two of exhaust system of gasoline engine;
Fig. 7 is the front schematic view of two hole dish in Fig. 6;
Fig. 8 is the side schematic view of two hole dish in Fig. 6;
Wherein, 1 be front exhaust pipe, 2 be silencer cylinder, 3 be catalytic converter, 4 be tail pipe, 5 be connecting tube for tail-hood, 6 be the first cavity, 7 be the second cavity, 8 be the 3rd cavity, 9 be a hole dish, 10 be two hole dish, 11 is three hole dish, 12,13 be one-level perforated tube, 14 be one-level hush tube, 15 be secondary hush tube, 16 be position, upper hole for honeycomb duct, 17 be the first mesopore, 18 be the first position, hole, 19 is the second mesopore, 20,21 be lower opening position for blanking cover two, 22 is the first sound attenuation hole, 25 for blanking cover one, 23 is the second sound attenuation hole, 24.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Embodiment one
The present invention is used for the structural representation of the silencing apparatus embodiment one of exhaust system of gasoline engine as shown in Figure 1, this silencing apparatus comprise connect successively front exhaust pipe 1, silencer cylinder 2 and the catalytic converter 3, sound attenuation assembly, tail pipe 4 and the tail-hood 5 that are arranged in silencer cylinder 2; Wherein, sound attenuation assembly comprises hole dish 9, two hole dish 10 and three hole dish 11 of the first cavity 6, second cavity 7 and the 3rd cavity 8 be divided into successively by silencer cylinder 2, connecting tube 12, tube wall is provided with the one-level perforated tube 13 of several the second sound attenuation holes 23, one-level hush tube 14, secondary hush tube 15 and honeycomb duct 16.Connecting tube 12 interts on a hole dish 9, the one end being positioned at hole dish 9 side is connected with catalytic converter 3 tail end, the one end being positioned at hole dish 9 opposite side is arranged on the first cavity 6 and is communicated with the inlet end of one-level perforated tube 13, the exhaust end of one-level perforated tube 13 is positioned at the first cavity 6, and its exhaust end port narrows gradually along the Way out of air-flow.Wherein, hole dish 9, a two hole dish 10 and three hole dish 11 are installed with silencer cylinder 2 matching internal.
In Fig. 1, as shown in Figures 2 and 3, the bottom being provided with the first mesopore 17, first mesopore 17 of opening indent in two hole dish is provided with the first position, hole 18 of opening evagination for the front schematic view of two hole dish and side schematic view; In order to solve leakage water problem, be provided with recess in the bottom of two hole dish.As shown in Figure 1, the aperture of the first mesopore and the caliber of one-level hush tube 14 match, one-level hush tube 14 is by being provided with the first mesopore of opening indent, intert securely on two hole dish 10, its one end open and opening end are arranged in the first cavity 6 relative with the exhaust end of one-level perforated tube 13, in order to receive the air-flow of discharging from one-level perforated tube 13 exhaust end on a large scale, the port design of this end is horn opening, the other end of one-level hush tube 14 to be then arranged in the second cavity 7 and to be provided with blanking cover 2 21 and forms cecum, and the total length of one-level hush tube 14 is greater than the half of its minimum pipe.
The front schematic view of three hole dish and side schematic view as shown in Figure 4 and Figure 5, are provided with in three hole dish above and below the second mesopore 19, second mesopore 19 and are respectively provided with position, hole 20 and lower opening position 25; The opening evagination of the second mesopore 19, position, upper hole 20 and lower opening position 25; In order to solve leakage water problem, be provided with recess in the bottom of three hole dish.As shown in Figure 1, tail pipe 4 interts on three hole dish 11 by the second mesopore 19, its one end open and being arranged in the second cavity 7, and exhaust end is then located at outside silencer cylinder 2.And secondary hush tube 15 interts on two hole dish 10 and three hole dish 11 by the first position, hole 18 of two hole dish 10 and the lower opening position 25 of three hole dish 11, its one end open and be arranged in the first cavity 6, the other end to be arranged in the 3rd cavity 8 and to be provided with blanking cover 1 and forms cecum.Honeycomb duct 16 interts on three hole dish 11 by position, upper hole 20, one end open and be arranged in the second cavity 7, and the other end is arranged in the 3rd cavity 8.The aperture of above described holes with the caliber of pipe that interts all match, and the equal evagination of the opening in hole, can make interted pipe more firm.
As shown in Figure 1, the tube wall being located at the 3rd cavity 8 at secondary hush tube 15 offers the first sound attenuation hole 24, this first sound attenuation hole 24 is the multiple through holes in the distribution of pipe circumferencial direction.After this design can make to cancel out each other in secondary hush tube 15, gas is discharged to the 3rd cavity 8.
The silencing apparatus that the present invention is used for exhaust system of gasoline engine is work like this:
(1) engine air flow enters one-level perforated tube 13 from catalytic converter 3 tail end by connecting tube 12, enters the one-level hush tube 14 relative with one-level perforated tube 13 exhaust end carry out one-level consumption from the major part of the engine air flow main flow of one-level perforated tube 13 exhaust end outflow.First main flow pulsing airflow will clash into tube wall and the blanking cover 2 21 of one-level hush tube 14, consume a part of kinetic energy, now, pulsing airflow to airintake direction bounce-back constantly liquidates mutually with another part pulsing airflow rushing at one-level hush tube 14 cecum, and relative highpressure is formed in one-level hush tube 14, in the mutual impact process of air-flow, soundproof effect can be reached.
(2) air-flow consuming a part of kinetic energy will enter secondary hush tube 15, pulsing airflow first clashes into again tube wall and the blanking cover 1 of secondary hush tube 15, again consume a part of kinetic energy, now, pulsing airflow to airintake direction bounce-back constantly liquidates mutually with another part pulsing airflow rushing at secondary hush tube 15 cecum, and forming again relative highpressure at secondary hush tube 15 rear, kinetic energy and the vibration thereof of pulsing airflow will consume a part again herein.
(3) after repeatedly consuming, eliminate kinetic energy and the vibration of pulsing airflow largely, make the air-flow in silencing apparatus keep steadily soft.Air-flow flows into the 3rd cavity 8 by the first sound attenuation hole 24, then flows to the second cavity 7 by honeycomb duct 16, steadily leniently discharges external environment, reduce exhaust noise largely finally by tail pipe 4.In whole process, air-flow is circuitous flow in first cavity 6, second cavity 7 and the 3rd cavity 8 of silencing apparatus, by the consumption kinetic energy that mutually liquidates in hush tube, thus reduces pressure and the speed of air-flow, also plays the effect reducing exhaust sound.By mutual kinetic energy and the flow velocity to bring consumption air-flow of air-flow in hush tube, significantly reduce the impact of air-flow to metal, and the noise caused therefrom.
Embodiment two
The present embodiment and embodiment one difference are:
(1) the present invention is used for the structural representation of the silencing apparatus embodiment two of exhaust system of gasoline engine as shown in Figure 6, the tube wall being located at the 3rd cavity 8 at secondary hush tube 15 offers the first sound attenuation hole 24, the first sound attenuation hole 24 in the present embodiment is the perforates on a sidewall facing toward tail pipe 4, after this first sound attenuation hole 24 not only can make to cancel out each other in secondary hush tube 15, gas is discharged to the 3rd cavity 8, and the pipe face of the gas shock tail pipe 4 of discharging, can disperse, buffering and softening air-flow, avoid pulsing airflow and impact tail pipe pipe face simultaneously, form distributing shocks tail pipe pipe face in order, thus reduce the noisemetallic clashing into and send.
(2) in Fig. 6 the front schematic view of two hole dish and side schematic view as shown in Figure 7 and Figure 8, the first position, hole 18 of opening evagination is arranged on the top of the first mesopore 17; As shown in Figure 6, secondary hush tube 15 interts on two hole dish 10 and three hole dish 11 by the position, hole, top first 18 of two hole dish 10 and the position, upper hole 20 of three hole dish 11, its one end open and be arranged in the first cavity 6, the other end to be arranged in the 3rd cavity 8 and to be provided with blanking cover 1 and forms cecum; Honeycomb duct 16 then interts on three hole dish 11 by lower opening position 25, one end open and be arranged in the second cavity 7, and the other end is arranged in the 3rd cavity 8.
Other structures of the present embodiment silencing apparatus are identical with other structures of silencing apparatus in embodiment one, and the working principle of silencing apparatus is also consistent with the working principle of silencing apparatus in embodiment one.
Embodiment three
The present embodiment and embodiment one difference are secondary hush tube does not offer the first sound attenuation hole, this secondary hush tube interts on two Die Hesan hole, hole dish, be communicated with the first cavity and the 3rd cavity, and the one end be arranged in the 3rd cavity does not arrange blanking cover one, the two ends of secondary hush tube are opening end.Other structures of the present embodiment silencing apparatus are identical with other structures of silencing apparatus in embodiment one.
Silencing apparatus in the present embodiment is work like this: engine air flow enters one-level perforated tube from catalytic converter tail end by connecting tube, enter one-level hush tube from the air-flow of one-level perforated tube discharge to consume, part pulsing airflow first clashes into tube wall and the blanking cover two of one-level hush tube, consume a part of kinetic energy, now, pulsing airflow to airintake direction bounce-back constantly liquidates mutually with another part pulsing airflow rushing at one-level hush tube cecum, and relative highpressure is formed in one-level hush tube, pulsing airflow kinetic energy and vibration thereof will offset a part herein.Air-flow flows into the 3rd cavity by secondary hush tube, then flows to the second cavity by honeycomb duct, steadily leniently discharges external environment finally by tail pipe, reaches the effect reducing exhaust sound.
Above-described embodiment is the present invention's preferably mode of execution; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. for a silencing apparatus for exhaust system of gasoline engine, comprise connect successively front exhaust pipe, silencer cylinder and the catalytic converter, sound attenuation assembly, tail pipe and the tail-hood that are arranged in silencer cylinder; It is characterized in that: described sound attenuation assembly comprises a hole dish, two hole dish, three hole dish, connecting tube, one-level perforated tube, one-level hush tube, secondary hush tube and honeycomb duct, wherein a hole dish, two Die Hesan hole, hole dish the first cavity, the second cavity and the 3rd cavity that silencer cylinder is divided into successively; Described connecting tube interts on a hole dish, the one end being positioned at a dish side, hole is connected with catalytic converter prime tail end, the one end being positioned at a hole dish opposite side is arranged on the first cavity and is communicated with the inlet end of one-level perforated tube, and the exhaust end of one-level perforated tube is positioned at the first cavity; Described one-level hush tube interts on two hole dish, and its one end open and opening end are arranged in the first cavity relative with the exhaust end of one-level perforated tube, and it is interior and be provided with blanking cover dimorphism and become cecum that the other end is arranged on the second cavity; Described secondary hush tube interts on two Die Hesan hole, hole dish, is communicated with the first cavity and the 3rd cavity; Described honeycomb duct and tail pipe all intert on three hole dish, its one end open and be all arranged in the second cavity, and the other end of honeycomb duct is arranged in the 3rd cavity, and the other end of tail pipe is that exhaust end is located at outside silencer cylinder.
2. the silencing apparatus for exhaust system of gasoline engine according to claim 1, is characterized in that: the exhaust end port of described one-level perforated tube narrows gradually along the Way out of air-flow.
3. the silencing apparatus for exhaust system of gasoline engine according to claim 2, is characterized in that: the tube wall of described one-level perforated tube is provided with several the second sound attenuation holes.
4. the silencing apparatus for exhaust system of gasoline engine according to claim 3, is characterized in that: the described one-level hush tube port be arranged in the first cavity is horn opening; The total length of described one-level hush tube is greater than the half of its minimum pipe.
5. the silencing apparatus for exhaust system of gasoline engine according to claim 4, it is characterized in that: described one-level hush tube interts the first mesopore referring on two hole dish and be provided with opening indent in two hole dish, and one-level hush tube interts on two hole dish by the first mesopore; Be provided with the first position, hole of opening evagination above or below described first mesopore, secondary hush tube is interted on two hole dish by the first position, hole.
6. the silencing apparatus for exhaust system of gasoline engine according to claim 5, is characterized in that: be provided with the second mesopore in described three hole dish, the top of the second mesopore is provided with upper hole, and the below of the second mesopore is provided with lower opening position; The opening evagination of described second mesopore, position, upper hole and lower opening position.
7. the silencing apparatus for exhaust system of gasoline engine according to any one of claim 1 to 6, is characterized in that: the tube wall being located at the 3rd cavity at described secondary hush tube offers the first sound attenuation hole.
8. the silencing apparatus for exhaust system of gasoline engine according to claim 7, is characterized in that: described first sound attenuation hole refer to pipe circumferencial direction distribution through hole or refer to secondary hush tube facing to tail pipe sidewall on perforate.
9. the silencing apparatus for exhaust system of gasoline engine according to claim 8, is characterized in that: described secondary hush tube one end open and be arranged in the first cavity, and the other end to be arranged in the 3rd cavity and to be provided with blanking cover one and forms cecum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550357.8A CN103016102B (en) | 2012-12-17 | 2012-12-17 | Silencer for exhaust system of gasoline engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550357.8A CN103016102B (en) | 2012-12-17 | 2012-12-17 | Silencer for exhaust system of gasoline engine |
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| CN103016102A CN103016102A (en) | 2013-04-03 |
| CN103016102B true CN103016102B (en) | 2015-05-27 |
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| CN201210550357.8A Active CN103016102B (en) | 2012-12-17 | 2012-12-17 | Silencer for exhaust system of gasoline engine |
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| CN201599082U (en) * | 2009-11-27 | 2010-10-06 | 重庆科瑞实业有限责任公司 | Motorcycle exhaust air silencer |
| CN202954869U (en) * | 2012-12-17 | 2013-05-29 | 杨富周 | Muffle for exhaust system of gasoline engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59194023A (en) * | 1983-04-18 | 1984-11-02 | Suzuki Motor Co Ltd | Device of preventing after-burn of motorcycle |
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2012
- 2012-12-17 CN CN201210550357.8A patent/CN103016102B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204324U (en) * | 1987-06-13 | 1988-05-18 | 李雅城 | Energy-saving diversion muffler |
| CN201330635Y (en) * | 2008-10-31 | 2009-10-21 | 江门市中港宝田摩托车实业有限公司 | Motorcycle |
| CN101429885A (en) * | 2008-12-11 | 2009-05-13 | 洛阳北方易初摩托车有限公司 | Heating type exhausting silencer of motorcycle |
| CN201599082U (en) * | 2009-11-27 | 2010-10-06 | 重庆科瑞实业有限责任公司 | Motorcycle exhaust air silencer |
| CN101737121A (en) * | 2009-12-21 | 2010-06-16 | 重庆隆鑫机车有限公司 | Motorcycle sound eliminator |
| CN202954869U (en) * | 2012-12-17 | 2013-05-29 | 杨富周 | Muffle for exhaust system of gasoline engine |
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| CN103016102A (en) | 2013-04-03 |
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Effective date of registration: 20170504 Address after: 526100 Guangdong city of Zhaoqing Province Gaoyao District Jiao Tang Zhen Jiao Tang Cun Patentee after: Zhaoqing Gaoyao Cheng Kang Hardware Co., Ltd. Address before: 526113 Guangdong city of Zhaoqing Province Gaoyao City Zhenkang Jiao Tang Industrial Park Patentee before: Yang Fuzhou |