CN211777649U - Automobile with a detachable front cover - Google Patents
Automobile with a detachable front cover Download PDFInfo
- Publication number
- CN211777649U CN211777649U CN201921728176.3U CN201921728176U CN211777649U CN 211777649 U CN211777649 U CN 211777649U CN 201921728176 U CN201921728176 U CN 201921728176U CN 211777649 U CN211777649 U CN 211777649U
- Authority
- CN
- China
- Prior art keywords
- pipe
- channel
- chamber
- cylinder
- communicated
- 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.)
- Active
Links
Images
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses an automobile, which comprises an exhaust system, wherein the exhaust system comprises a main silencer, the front end of the main silencer is connected with a main middle pipe, the tail end of the main silencer is connected with a tail pipe, the main silencer comprises a shell, an inner pipe, a first silencing piece and a second silencing piece, the shell comprises a barrel body, and a front end cover and a rear end cover which are respectively arranged at two openings of the barrel body; the inner pipe is arranged in the cylinder body and comprises a front taper pipe, a middle pipe and a rear taper pipe which are sequentially connected, wherein one end of the middle pipe is connected with the small end of the front taper pipe, and the other end of the middle pipe is connected with the large end of the rear taper pipe; the first silencing piece is connected with the middle pipe through a first annular partition plate; the second amortization piece passes through second annular baffle and links to each other with well pipe, and the second amortization piece is located the rear of first amortization piece. Owing to adopted above-mentioned structure, therefore make the utility model discloses an exhaust system produces little noise, has improved the utility model discloses a travelling comfort.
Description
Technical Field
The utility model relates to a vehicle, concretely relates to car.
Background
The transportation means is an indispensable part in the life of modern people, and with the change of times and the progress of scientific technology, the transportation means around people are more and more, thereby bringing great convenience to the life of each person.
In recent years, with the improvement of living standard of people, people tend to automobiles as transportation tools for traveling, and the noise generated by an exhaust system of the automobile is closely related to the comfort of the automobile.
SUMMERY OF THE UTILITY MODEL
To the above problems, the utility model provides a car that exhaust noise is little, the travelling comfort is strong.
The utility model provides a technical scheme that above-mentioned problem adopted is:
an automobile, includes exhaust system, exhaust system includes main muffler, the front end of main muffler links to each other with main well pipe, the tail end of main muffler links to each other with the tail pipe, wherein, main muffler includes:
the shell comprises a cylinder body, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are respectively arranged at two cylinder ports of the cylinder body;
the inner pipe is arranged in the barrel and comprises a front taper pipe, a middle pipe and a rear taper pipe which are sequentially connected, one end of the middle pipe is connected with the small end of the front taper pipe, and the other end of the middle pipe is connected with the large end of the rear taper pipe;
the first silencing piece is connected with the middle pipe through a first annular partition plate and is provided with a first channel, and the first channel is communicated with the main middle pipe;
the second silencing piece is connected with the middle pipe through a second annular partition plate and located behind the first silencing piece, the second silencing piece is provided with a second channel, the front end of the second channel is communicated with the first channel, and the tail end of the second channel is communicated with the tail pipe.
Preferably, the inner cavity of the inner tube is divided into a front cavity, a middle cavity and a rear cavity by the first annular partition plate and the second annular partition plate, the front part of the first silencing piece is located in the front cavity, the rear part of the first silencing piece is located in the middle cavity, the front part of the second silencing piece is located in the middle cavity, and the rear part of the second silencing piece is located in the rear cavity.
The preferred, first amortization piece is including consecutive cylinder and solid bowl body, the front end of cylinder is located in the preceding cavity, the rear end of cylinder is located in the well cavity, just the rear end of cylinder with the tip of solid bowl body links to each other, the main aspects of solid bowl body is located in the well cavity, open on the cylinder and run through the first straight passageway of cylinder, just the rear end of first straight passageway extends to in the solid bowl body, the internal toper passageway that has seted up of solid bowl body, the tip of toper passageway with first straight passageway intercommunication, the main aspects of toper passageway with well cavity intercommunication, the toper passageway with first straight passageway has constituted first passageway.
Preferably, an annular rubber conical plate is arranged on the inner wall of the tail end of the first straight channel, the large end of the annular rubber conical plate is connected with the inner wall of the first straight channel, and the small end of the annular rubber conical plate extends into the conical channel.
Preferably, the second silencing element is a cone, a small end of the cone extends into the cone channel, a large end of the cone is located in the rear cavity, the cone is provided with a second straight channel and a bowl-shaped cavity which are communicated, one end of the second straight channel is communicated with the cone channel, the other end of the second straight channel is communicated with the small end of the bowl-shaped cavity, and the large end of the bowl-shaped cavity is communicated with the rear cavity.
Preferably, a plurality of elastic arms are annularly distributed on the periphery of the conical body, each elastic arm comprises an L-shaped elastic arm, a short arm of each L-shaped elastic arm is connected with the conical body, a long arm of each L-shaped elastic arm is parallel to the outer wall of the conical body, and a cantilever end of the long arm of each L-shaped elastic arm extends towards the rear end cover.
Preferably, the elastic arm further includes a strip-shaped extension plate, the strip-shaped extension plate is disposed on the cantilever end of the long arm of the L-shaped elastic arm, one end of the strip-shaped extension plate is connected to the cantilever end of the long arm of the L-shaped elastic arm, and the other end of the strip-shaped extension plate extends toward the rear end cover.
Preferably, a plurality of small holes are formed in the second annular partition plate.
The utility model has the advantages that:
1. because the inner pipe is arranged in the shell of the utility model, the first silencing piece and the second silencing piece are arranged in the inner pipe, when the automobile tail gas passes through the first silencing piece and the second silencing piece, the flow velocity of the gas can be slowed down due to the blocking effect of the first silencing piece and the second silencing piece, thereby reducing the noise generated by the gas flow and improving the comfort of the utility model;
2. because the utility model discloses a be equipped with annular rubber taper plate in the first amortization piece, second amortization piece includes a plurality of elastic arm, therefore when first amortization piece of gas flow through and second amortization piece, the kinetic energy that the gas flow has and because of the sound energy of the noise that the gas flow produced can turn into the elastic potential energy of annular rubber taper plate and elastic arm to play the effect of noise reduction, improved the utility model discloses a travelling comfort.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic structural view of an exhaust system of the present invention;
FIG. 3 is a schematic structural view of the main muffler of the present invention;
fig. 4 is a flow chart of the air in the main muffler of the present invention.
Wherein, the labels in the figure are: the automobile muffler comprises an exhaust system 100, a main muffler 10, a main middle pipe 20, a tail pipe 30, a shell 1, a cylinder 11, a front end cover 12, a rear end cover 13, an inner pipe 2, a front conical pipe 21, a middle pipe 22, a rear conical pipe 23, a front chamber 24, a middle chamber 25, a rear chamber 26, a first muffler 3, a cylinder 31, a solid bowl-shaped body 32, a first straight channel 33, a conical channel 34, an annular rubber conical plate 35, a first annular partition plate 4, a second muffler 5, a second annular partition plate 6, a small hole 61, a conical body 7, a second straight channel 71, a bowl-shaped cavity 72, an elastic arm 8, an L-shaped elastic arm 81, a strip-shaped extension plate 82 and an automobile 200.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1 to 4, an automobile 200 shown in fig. 1 includes an exhaust system 100, as shown in fig. 2, the exhaust system 100 includes a main muffler 10, a front end of the main muffler 10 is connected to a main middle pipe 20, a rear end of the main muffler 10 is connected to a tail pipe 30, as shown in fig. 3, the main muffler 10 includes a housing 1, an inner pipe 2, a first muffler 3 and a second muffler 5, the housing 1 includes a cylinder 11, and a front end cap 12 and a rear end cap 13 respectively disposed at two mouths of the cylinder 11, the front end cap 12 is connected to the main middle pipe 20, the rear end cap 13 is connected to the tail pipe 30, the inner pipe 2 is disposed in the cylinder 11, and the inner pipe 2 includes a front cone 21, a middle pipe 22 and a rear cone 23 which are sequentially connected, since inner diameters of the front cone 21 and the rear cone 23 are changed at any time, sections of the front cone 21 and the rear cone 23 are changed, that is, the acoustic impedance changes reflect the sound waves generated by the gas flow propagating along the front cone 21 and the rear cone 23 back toward the origin, thereby achieving the silencing effect.
As shown in fig. 3, one end of the middle pipe 22 is connected to the small end of the front taper pipe 21, the other end of the middle pipe 22 is connected to the large end of the rear taper pipe 23, the first silencing member 3 is connected to the middle pipe 22 through the first annular partition plate 4, the first silencing member 3 has a first passage, the first passage is communicated with the main middle pipe 20, the second silencing member 5 is connected to the middle pipe 22 through the second annular partition plate 6, the second annular partition plate 6 is provided with a plurality of small holes 61, the second silencing member 5 is located behind the first silencing member 3, the second silencing member 5 has a second passage, the front end of the second passage is communicated with the first passage, and the tail end of the second passage is communicated with the tail pipe 30.
In the present embodiment, the apertures of the small holes 61 are all smaller than 1mm, when the gas flows through the small holes 61, the energy loss of the sound wave generated by the gas flow during the propagation process depends on the friction loss of the air in the micropores, the friction loss depends on the sound resistance of the second annular partition plate 6, the larger the sound resistance, the larger the friction loss, the larger the sound resistance is, the sound resistance is inversely proportional to the square of the aperture, and when the aperture is smaller than 1mm, the sound resistance is greatly increased compared with a general perforated plate (the aperture is between several millimeters and several tens of millimeters), thereby enhancing the sound absorption performance of the second annular partition plate 6.
As shown in fig. 3, the first annular partition plate 4 and the second annular partition plate 6 divide the inner cavity of the inner tube 2 into a front chamber 24, a middle chamber 25 and a rear chamber 26, when gas enters the rear chamber 26 through the small hole 61, two sound waves with equal amplitude and opposite displacement are generated at the junction of the small hole 61 and the rear chamber 26, and interfere with each other, so that the noise reduction effect can be achieved, wherein the front part of the first silencing member 3 is located in the front chamber 24, the rear part of the first silencing member 3 is located in the middle chamber 25, the front part of the second silencing member 5 is located in the middle chamber 25, and the rear part of the second silencing member 5 is located in the rear chamber 26.
As shown in fig. 3, the first noise damping member 3 includes a cylinder 31 and a solid bowl 32 connected in sequence, the front end of the cylinder 31 is located in the front chamber 24, the rear end of the cylinder 31 is located in the middle chamber 25, the rear end of the cylinder 31 is connected to the small end of the solid bowl 32, the large end of the solid bowl 32 is located in the middle chamber 25, a first straight passage 33 passing through the cylinder 31 is opened on the cylinder 31, the rear end of the first straight passage 33 extends into the solid bowl 32, a tapered passage 34 is opened in the solid bowl 32, the small end of the tapered passage 34 is communicated with the first straight passage 33, the large end of the tapered passage 34 is communicated with the middle chamber 25, the tapered passage 34 and the first straight passage 33 constitute the first passage, when gas flows through the tapered passage 34, the sound waves generated by the gas flow propagating along the tapered channel 34 are reflected back to the origin by the abrupt change in the cross section of the tapered channel 34, that is, the change in the acoustic impedance, thereby achieving the sound attenuation effect.
As shown in fig. 3, an annular rubber tapered plate 35 is disposed on an inner wall of the tail end of the first straight channel 33, a large end of the annular rubber tapered plate 35 is connected to the inner wall of the first straight channel 33, and a small end of the annular rubber tapered plate 35 extends into the tapered channel 34, so that when gas flows through the first straight channel 33, a part of kinetic energy of the flowing gas and sound energy of noise generated by the flowing gas are converted into elastic potential energy of the annular rubber tapered plate 35, and the annular rubber tapered plate 35 expands outward.
As shown in fig. 3, the second silencing element 5 is a cone 7, a small end of the cone 7 extends into the tapered channel 34, a large end of the cone 7 is located in the rear chamber 26, the cone 7 is provided with a second straight channel 71 and a bowl-shaped cavity 72 which are communicated, one end of the second straight channel 71 is communicated with the tapered channel 34, the other end of the second straight channel 71 is communicated with the small end of the bowl-shaped cavity 72, the large end of the bowl-shaped cavity 72 is communicated with the rear chamber 26, and when gas flows through the bowl-shaped cavity 72, sound waves generated by gas flow and transmitted along the bowl-shaped cavity 72 are reflected back to a source generating direction by using a section mutation of the bowl-shaped cavity 72, that is, a change in acoustic impedance, so as to achieve a silencing effect.
As shown in fig. 3, a plurality of elastic arms 8 are annularly distributed on the outer periphery of the conical body 7, each elastic arm 8 includes an L-shaped elastic arm 81, a short arm of the L-shaped elastic arm 81 is connected to the conical body 7, a long arm of the L-shaped elastic arm 81 is parallel to the outer wall of the conical body 7, and a cantilever end of the long arm of the L-shaped elastic arm 81 extends toward the rear end cap 13, so that when gas flows through the rear chamber 26, a part of kinetic energy of the flowing gas and sound energy of noise generated by the flowing gas are converted into elastic potential energy of the elastic arm 81, and the elastic arm 81 is deformed.
In this embodiment, 4 elastic arms 81 are annularly distributed on the outer periphery of the conical body 7.
In this embodiment, the elastic arm 81 is made of rubber.
As shown in fig. 4, after the gas flows from the main middle pipe 20 to the front chamber 24, the gas flows into the first straight passage 33 and then flows into the tapered passage 34, the gas flowing out of the tapered passage 34 is divided into two parts to flow continuously, one part flows into the second straight passage 71, the other part flows into the rear chamber 26 through the plurality of small holes 61, and the gas flowing into the second straight passage 71 then flows into the rear chamber 26 through the bowl-shaped cavity 72 and finally flows into the tail pipe 30.
The elastic arm 8 further includes a strip-shaped extension plate 82, the strip-shaped extension plate 82 is disposed on the cantilever end of the long arm of the L-shaped elastic arm 81, one end of the strip-shaped extension plate 82 is connected with the cantilever end of the long arm of the L-shaped elastic arm 81, and the other end of the strip-shaped extension plate 82 extends toward the rear end cover 13.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An automobile, comprising an exhaust system (100), the exhaust system (100) comprising a main muffler (10), the front end of the main muffler (10) being connected to a center pipe (20), the tail end of the main muffler (10) being connected to a tail pipe (30), characterized in that the main muffler (10) comprises:
the shell (1), the said shell (1) includes the cylinder (11) and sets up front end cap (12), rear end cap (13) in two tube mouths of the said cylinder (11) separately, the said front end cap (12) couples to said main pipe (20), the said rear end cap (13) couples to said tail pipe (30);
the inner pipe (2) is arranged in the barrel body (11), the inner pipe (2) comprises a front taper pipe (21), a middle pipe (22) and a rear taper pipe (23) which are sequentially connected, one end of the middle pipe (22) is connected with the small end of the front taper pipe (21), and the other end of the middle pipe (22) is connected with the large end of the rear taper pipe (23);
the first silencing piece (3) is connected with the middle pipe (22) through a first annular partition plate (4), the first silencing piece (3) is provided with a first channel, and the first channel is communicated with the main middle pipe (20);
the second silencing piece (5) is connected with the middle pipe (22) through a second annular partition plate (6), the second silencing piece (5) is located behind the first silencing piece (3), the second silencing piece (5) is provided with a second channel, the front end of the second channel is communicated with the first channel, and the tail end of the second channel is communicated with the tail pipe (30).
2. The motor vehicle according to claim 1, characterized in that said first annular partition (4) and said second annular partition (6) divide the inner cavity of said inner tube (2) into a front chamber (24), a middle chamber (25) and a rear chamber (26), the front of said first silencing element (3) being located in said front chamber (24), the rear of said first silencing element (3) being located in said middle chamber (25), the front of said second silencing element (5) being located in said middle chamber (25), the rear of said second silencing element (5) being located in said rear chamber (26).
3. The automobile according to claim 2, characterized in that the first noise damping member (3) comprises a cylinder (31) and a solid bowl (32) connected in sequence, the front end of the cylinder (31) is located in the front chamber (24), the rear end of the cylinder (31) is located in the middle chamber (25), the rear end of the cylinder (31) is connected with the small end of the solid bowl (32), the large end of the solid bowl (32) is located in the middle chamber (25), a first straight channel (33) penetrating through the cylinder (31) is opened on the cylinder (31), the rear end of the first straight channel (33) extends into the solid bowl (32), a tapered channel (34) is opened in the solid bowl (32), the small end of the tapered channel (34) is communicated with the first straight channel (33), the large end of the tapered passage (34) communicates with the middle chamber (25), and the tapered passage (34) and the first straight passage (33) constitute the first passage.
4. The automobile according to claim 3, characterized in that an annular rubber conical plate (35) is arranged on the inner wall of the tail end of the first straight channel (33), the large end of the annular rubber conical plate (35) is connected with the inner wall of the first straight channel (33), and the small end of the annular rubber conical plate (35) extends into the conical channel (34).
5. The automobile according to claim 4, characterized in that the second noise damping member (5) is a cone (7), the small end of the cone (7) extends into the cone channel (34), the large end of the cone (7) is located in the rear chamber (26), a second straight channel (71) and a bowl-shaped cavity (72) which are communicated with each other are formed on the cone (7), one end of the second straight channel (71) is communicated with the cone channel (34), the other end of the second straight channel (71) is communicated with the small end of the bowl-shaped cavity (72), and the large end of the bowl-shaped cavity (72) is communicated with the rear chamber (26).
6. The automobile of claim 5, characterized in that a plurality of elastic arms (8) are distributed on the periphery of the conical body (7) in an annular manner, the elastic arms (8) comprise L-shaped elastic arms (81), the short arms of the L-shaped elastic arms (81) are connected with the conical body (7), the long arms of the L-shaped elastic arms (81) are parallel to the outer wall of the conical body (7), and the cantilever ends of the long arms of the L-shaped elastic arms (81) extend towards the rear end cover (13).
7. The motor vehicle according to claim 6, characterized in that the spring arm (8) further comprises a strip-shaped extension plate (82), the strip-shaped extension plate (82) being arranged on the cantilevered end of the long arm of the L-shaped spring arm (81), one end of the strip-shaped extension plate (82) being connected to the cantilevered end of the long arm of the L-shaped spring arm (81), the other end of the strip-shaped extension plate (82) extending towards the rear end cap (13).
8. The vehicle according to claim 1, characterized in that said second annular partition (6) is provided with a plurality of small holes (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921728176.3U CN211777649U (en) | 2019-10-16 | 2019-10-16 | Automobile with a detachable front cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921728176.3U CN211777649U (en) | 2019-10-16 | 2019-10-16 | Automobile with a detachable front cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211777649U true CN211777649U (en) | 2020-10-27 |
Family
ID=72935072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921728176.3U Active CN211777649U (en) | 2019-10-16 | 2019-10-16 | Automobile with a detachable front cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211777649U (en) |
-
2019
- 2019-10-16 CN CN201921728176.3U patent/CN211777649U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH08114117A (en) | Exhausting device for vehicle | |
| CN110735688B (en) | Silencer of exhaust system for automobile | |
| CN211777649U (en) | Automobile with a detachable front cover | |
| CN201554532U (en) | Sound damper for automobile | |
| CN210919208U (en) | Silencer structure of automobile engine | |
| CN107816595A (en) | A kind of not even depth back of the body chamber micropunch muffler pipe in parallel | |
| CN109630250A (en) | A kind of silencer, exhaust equipment and the exhaust system with dynamic sound | |
| CN108457777B (en) | Air inlet box, air inlet system and vehicle | |
| CN211203275U (en) | Integrated compressed gas silencer | |
| US2100030A (en) | Silencer | |
| CN202125332U (en) | Novel semi-opened type multi-cavity silencer device | |
| CN204783176U (en) | Light truck muffler | |
| CN109519253B (en) | Silencer | |
| CN202117737U (en) | Exhaust silencer for high-capacity automobile | |
| CN209892314U (en) | Novel motorcycle exhaust pipe | |
| CN210195844U (en) | Silencer | |
| CN220748369U (en) | Exhaust device of double-tube muffler system suitable for motorcycle | |
| CN211666796U (en) | Impedance composite muffler for commercial vehicle | |
| CN203271890U (en) | Automobile front exhaust pipe | |
| CN219262481U (en) | Auxiliary muffler structure and vehicle | |
| CN219034841U (en) | Muffler with turn-back silencing structure | |
| CN204175364U (en) | A kind of circular automobile exhaust gas Sound Attenuator | |
| CN219034840U (en) | Silencer with novel structure | |
| CN215109081U (en) | Silencer for overhead working truck | |
| CN217421311U (en) | Automobile exhaust pipe silencing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211228 Address after: 363900 No. 300, Yintang Road, Yintang Industrial Zone, Gunong farm, Changtai County, Zhangzhou City, Fujian Province Patentee after: Fujian Jiadi scrap car recycling Co.,Ltd. Address before: 362000 Yuanmei Development Zone, Luncang Town, Nan'an City, Quanzhou City, Fujian Province Patentee before: Quanzhou Eagle wolf kitchen and bathroom Co.,Ltd. |