阅读说明：本技术 一种排气管消音器 (Exhaust pipe silencer ) 是由 杜世强 杜海亮 于 2019-10-17 设计创作，主要内容包括：本发明公开了一种排气管消音器,包括进气管、消音器筒体、过渡管和出气管；消音器筒体为中空结构,其内设有一对隔音板,一对隔音板将消音器筒体分为左腔、中腔和右腔,每个隔音板上设有第五通孔；进气管左端位于消音器筒体左侧、中部设有第一通孔并位于左腔内、右部设有第二通孔并位于中腔内、右端设有第一密封板,第二通孔外侧套装在第一消音套筒；过渡管穿过有其中一个隔音板,过渡管的左部设有第三通孔并位于中腔、右部设有第四通孔并位于右腔、右端设有第二密封板,第四通孔上套装第二消音套筒；出气管的左端位于左腔内,右端位于消音器筒体右侧。本一种排气管消音器结构简单,实现对尾气高效消音。(The invention discloses an exhaust pipe silencer, which comprises an air inlet pipe, a silencer cylinder, a transition pipe and an air outlet pipe, wherein the air inlet pipe is connected with the silencer cylinder; the silencer cylinder body is of a hollow structure, a pair of sound insulation plates are arranged in the silencer cylinder body, the silencer cylinder body is divided into a left cavity, a middle cavity and a right cavity by the pair of sound insulation plates, and each sound insulation plate is provided with a fifth through hole; the left end of the air inlet pipe is positioned on the left side of the silencer cylinder, the middle part of the air inlet pipe is provided with a first through hole and is positioned in the left cavity, the right part of the air inlet pipe is provided with a second through hole and is positioned in the middle cavity, the right end of the air inlet pipe is provided with a first sealing plate, and the outer side of the second through hole is sleeved on the first silencing sleeve; the transition pipe penetrates through one of the sound insulation plates, the left part of the transition pipe is provided with a third through hole and is positioned in the middle cavity, the right part of the transition pipe is provided with a fourth through hole and is positioned in the right cavity, the right end of the transition pipe is provided with a second sealing plate, and a second silencing sleeve is sleeved on the fourth through hole; the left end of the air outlet pipe is positioned in the left cavity, and the right end of the air outlet pipe is positioned on the right side of the silencer cylinder. This blast pipe muffler simple structure realizes the high-efficient amortization of tail gas.)

1. An exhaust pipe silencer is characterized by comprising an air inlet pipe (1), a silencer cylinder body (2), a transition pipe (3) and an air outlet pipe (5);

the silencer cylinder body (2) is of a hollow structure, a pair of sound insulation plates (41) are arranged in the silencer cylinder body, the silencer cylinder body (2) is divided into a left cavity, a middle cavity and a right cavity by the pair of sound insulation plates (41), and a fifth through hole (42) is formed in each sound insulation plate (41);

the left end of the air inlet pipe (1) is positioned at the left side of the silencer cylinder body (2), the middle part of the air inlet pipe is provided with a first through hole (11) and is positioned in a left cavity, the right part of the air inlet pipe is provided with a second through hole (13) and is positioned in a middle cavity, the right end of the air inlet pipe is provided with a first sealing plate, and the outer side of the second through hole (13) is sleeved on a first silencing sleeve (12);

one sound insulation plate (41) penetrates through the transition pipe (3), a third through hole (31) is formed in the left part of the transition pipe (3), the transition pipe is located in the middle cavity, a fourth through hole (33) is formed in the right part of the transition pipe, a second sealing plate is arranged in the right cavity and the right end of the transition pipe, and a second silencing sleeve (32) is sleeved on the fourth through hole (33);

the left end of the air outlet pipe (5) is positioned in the left cavity, and the right end of the air outlet pipe is positioned on the right side of the silencer cylinder body (2).

2. An exhaust pipe silencer according to claim 1, characterized in that silencing cotton (21) is arranged in the left chamber.

3. An exhaust pipe silencer according to claim 1 or 2, characterized in that the transition pipes (3) are paired and arranged up and down on the baffle (41), and the outlet pipes (5) are paired and arranged up and down on the silencer cylinder (2).

4. An exhaust pipe silencer according to claim 1, characterized in that the first through hole (11) and the second through hole (13) have the same diameter, the third through hole (31) and the fourth through hole (33) have the same diameter, and the diameter of the third through hole (31) is smaller than the diameter of the first through hole (11) and larger than the diameter of the fifth through hole (42).

5. An exhaust pipe silencer according to claim 4, characterized in that the diameter of the fifth through hole (42) in the baffle (41) near the inlet pipe (1) is larger than the diameter of the fifth through hole (42) in the baffle (41) near the outlet pipe (5).

6. The exhaust pipe silencer according to claim 1, wherein the first through holes (11), the second through holes (13), the third through holes (31) and the fourth through holes (33) are all provided in plurality and are circumferentially and uniformly arranged.

Technical Field

The invention relates to the field of tail gas treatment tools, in particular to an exhaust pipe silencer.

Background

The silencer is one of the most important parts of an engine exhaust system, can safely discharge waste gas after combustion of an engine, and can reduce exhaust noise of the engine and exhaust airflow pressure loss by using the silencer structure, so that the whole vehicle has better performance.

The existing silencer of the exhaust system does not have the filtering function, most of the silencers of the type are easy to block in the long-term use process, and the general silencer is often improved in performance by simply adjusting the number of the baffle plates, the inner inserting pipes and the resistive elements, and the silencing performance is not ideal.

Disclosure of Invention

The invention provides an exhaust pipe silencer which is simple in structure and can realize high-efficiency silencing of tail gas.

In order to achieve the purpose, the exhaust pipe silencer comprises an air inlet pipe, a silencer cylinder, a transition pipe and an air outlet pipe;

the silencer cylinder is of a hollow structure, a pair of sound insulation plates are arranged in the silencer cylinder, the silencer cylinder is divided into a left cavity, a middle cavity and a right cavity by the pair of sound insulation plates, and each sound insulation plate is provided with a fifth through hole;

the left end of the air inlet pipe is positioned on the left side of the silencer cylinder, the middle part of the air inlet pipe is provided with a first through hole and is positioned in the left cavity, the right part of the air inlet pipe is provided with a second through hole and is positioned in the middle cavity, the right end of the air inlet pipe is provided with a first sealing plate, and the outer side of the second through hole is sleeved on the first silencing sleeve;

the transition pipe penetrates through one of the sound insulation plates, a third through hole is formed in the left part of the transition pipe and is positioned in the middle cavity, a fourth through hole is formed in the right part of the transition pipe and is positioned in the right cavity, a second sealing plate is arranged at the right end of the transition pipe, and a second silencing sleeve is sleeved on the fourth through hole;

the left end of the air outlet pipe is located in the left cavity, and the right end of the air outlet pipe is located on the right side of the silencer cylinder.

Furthermore, a silencing cotton is arranged in the left cavity.

Furthermore, the transition pipes are in a pair and are arranged on the sound insulation board from top to bottom, and the air outlet pipes are in a pair and are arranged on the silencer cylinder body from top to bottom.

Furthermore, the diameters of the first through hole and the second through hole are the same, the diameters of the third through hole and the fourth through hole are the same, and the diameter of the third through hole is smaller than the diameter of the first through hole and larger than the diameter of the fifth through hole.

Furthermore, the diameter of a fifth through hole on the sound insulation board close to the air inlet pipe is larger than that of a fifth through hole on the sound insulation board close to the air outlet pipe.

Furthermore, the first through holes, the second through holes, the third through holes and the fourth through holes are all multiple and are evenly arranged in the circumference.

Compared with the prior art, this blast pipe muffler is because the acoustic celotex board divide into left chamber with the muffler barrel, lumen and right chamber, and set up the transition pipe, tail gas gets into the muffler barrel from the intake pipe in, partial tail gas gets into left intracavity from first through-hole, and get into the lumen through the fifth through-hole, carry out preliminary amortization through the amortization cotton and handle, partial tail gas gets into the lumen from the third through-hole of intake pipe right part, carry out amortization through first amortization sleeve and handle, the tail gas part of lumen gets into the right intracavity through the fourth through-hole on the transition pipe and the fifth through-hole on the acoustic celotex board, carry out amortization through second amortization sleeve, get into the tail gas of right intracavity, sixth through-hole discharges on the outlet duct respectively, consequently, through left chamber, the lumen, right chamber and transition pipe carry out gradual amortization.

Drawings

FIG. 1 is an overall schematic view of the present invention;

in the figure: 1. the air inlet pipe comprises an air inlet pipe body 11, a first through hole 12, a first silencing sleeve 13, a second through hole 2, a silencer cylinder body 21, silencing cotton 3, a transition pipe 31, a third through hole 32, a second silencing sleeve 33, a fourth through hole 41, a sound insulation board 42, a fifth through hole 5, an air outlet pipe 51 and a sixth through hole.

Detailed Description

The invention will be further explained with reference to the drawings.

As shown in fig. 1, the exhaust pipe silencer comprises an air inlet pipe 1, a silencer cylinder 2, a transition pipe 3 and an air outlet pipe 5;

the silencer cylinder body 2 is of a hollow structure, a pair of sound insulation plates 41 are arranged in the silencer cylinder body 2, and the silencer cylinder body 2 is divided into a left cavity, a middle cavity and a right cavity by the pair of sound insulation plates 41;

a fifth through hole 42 is formed in each baffle plate 41;

the left end of the air inlet pipe 1 is positioned at the left side of the silencer cylinder body 2, the middle part of the air inlet pipe is provided with a first through hole 11 and is positioned in a left cavity, the right part of the air inlet pipe is provided with a second through hole 13 and is positioned in a middle cavity, the right end of the air inlet pipe is provided with a first sealing plate, and the outer side of the second through hole 13 is sleeved on a first silencing sleeve 12;

the transition pipe 3 penetrates through one of the sound insulation plates 41, the left part of the transition pipe 3 is provided with a third through hole 31 and is positioned in the middle cavity, the right part of the transition pipe is provided with a fourth through hole 33 and is positioned in the right cavity, the right end of the transition pipe is provided with a second sealing plate, and a second silencing sleeve 32 is sleeved on the fourth through hole 33;

the left end of the air outlet pipe 5 is positioned in the left cavity, and the right end of the air outlet pipe is positioned on the right side of the silencer cylinder 2;

furthermore, a silencing cotton 21 is arranged in the left cavity;

furthermore, the transition pipes 3 are paired and arranged on the sound insulation board 41 up and down, and the air outlet pipes 5 are paired and arranged on the silencer cylinder 2 up and down;

furthermore, the diameters of the first through hole 11 and the second through hole 13 are the same, the diameters of the third through hole 31 and the fourth through hole 33 are the same, and the diameter of the third through hole 31 is smaller than the diameter of the first through hole 11 and larger than the diameter of the fifth through hole 42;

further, the diameter of the fifth through hole 42 on the baffle plate 41 close to the air inlet pipe 1 is larger than that of the fifth through hole 42 on the baffle plate 41 close to the air outlet pipe 5;

furthermore, the first through holes 11, the second through holes 13, the third through holes 31 and the fourth through holes 33 are all multiple and are uniformly arranged on the circumference;

this when blast pipe muffler uses, tail gas gets into in the muffler barrel 2 from intake pipe 1, partial tail gas gets into left intracavity from first through-hole 11, and get into the intracavity through fifth through-hole 42, carry out preliminary amortization through amortization cotton 21, partial tail gas gets into the intracavity from the third through-hole 31 of intake pipe 1 right part, carry out amortization through first amortization sleeve 12 and handle, the tail gas part of intracavity passes through fourth through-hole 33 on transition pipe 3 and the fifth through-hole 42 on acoustic celotex board 41 gets into the right intracavity, carry out amortization through second amortization sleeve 32, get into the tail gas of right intracavity, sixth through-hole 51 is discharged on outlet duct 5 respectively, consequently through setting up left chamber, the intracavity, right chamber, and transition pipe 3 carry out gradual amortization, it is more efficient.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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.