CN213478430U

CN213478430U - Strong noise-reducing exhaust silencer for internal combustion engine

Info

Publication number: CN213478430U
Application number: CN202022031475.0U
Authority: CN
Inventors: 梅冬生; 季振林; 肖友洪; 严桂芳
Original assignee: Jiangsu Yean Industry Environmental Protection Equipment Technology Co ltd
Current assignee: Jiangsu Yean Industry Environmental Protection Equipment Technology Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-06-18
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a strong noise reduction internal combustion engine exhaust muffler, which comprises a cylinder body, wherein both sides of the cylinder body are provided with ports, the upper and lower inner walls of the cylinder body are fixedly connected with noise reduction layers, one inner wall of the cylinder body is fixedly connected with a connecting block relative to the noise reduction layers, the middle part of the connecting block is provided with an elliptical groove in a penetrating way, one side of the connecting block is fixedly connected with an air inlet pipe relative to the outer side of the elliptical groove, the other side of the connecting block is fixedly connected with an exhaust pipe relative to the outer side of the elliptical groove, one end side of the exhaust pipe is fixedly connected with a supporting plate relative to the inner part of the cylinder body, the supporting plate is fixedly connected with the upper and lower inner walls of the cylinder body, one side of the exhaust pipe is provided with a noise reduction jacket, one side of amortization inclined plate layer and the terminal surface fixed connection of amortization layer. The utility model discloses in, can effectively amortize the use.

Description

Strong noise-reducing exhaust silencer for internal combustion engine

Technical Field

The utility model relates to a combustion engine auxiliary assembly field especially relates to the internal-combustion engine exhaust silencer of making an uproar falls by force.

Background

An internal combustion engine is a power machine, and is a heat engine that directly converts heat energy released by burning fuel inside the machine into power. The internal combustion engine in the broad sense includes not only reciprocating piston, rotary piston and free piston engines but also jet engines of the rotary vane type, but the internal combustion engine is generally referred to as a piston engine.

At present stage to the comparatively tradition of use of internal-combustion engine exhaust silencer, and the noise reduction effect is not good, compare under, the utility model discloses, can effectively carry out a high-efficient amortization and fall the use of making an uproar for the air current velocity of flow reaches a steady state, thereby reaches the amortization purpose.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a strong noise reduction exhaust muffler for an internal combustion engine.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the strong noise reduction internal combustion engine exhaust muffler comprises a cylinder body, wherein both sides of the cylinder body are provided with ports, the inner walls of the upper end and the lower end of the cylinder body are fixedly connected with a silencing layer, the inner wall of one side of the cylinder body is fixedly connected with a connecting block relative to the silencing layer, an oval groove is arranged in the middle of the connecting block in a penetrating way, an air inlet pipe is fixedly connected with one side of the connecting block and the outer side surface of the connecting block relative to the oval groove, the other side of the connecting block and the outer side surface corresponding to the elliptical groove are fixedly connected with an exhaust pipe, the side surface of one end of the exhaust pipe and the inner part corresponding to the cylinder body are fixedly connected with a supporting plate, the supporting plate is fixedly connected with the inner walls of the upper end and the lower end of the cylinder body, a silencing jacket layer is arranged on the side surface of the exhaust pipe and opposite to one side of the supporting plate in a penetrating way, the terminal surface and the fixedly connected with amortization slope sheet layer on amortization jacket layer, one side on amortization slope sheet layer and the terminal surface fixed connection on amortization layer.

As a further description of the above technical solution:

one side of barrel just is provided with first guard plate for the port, the intake pipe runs through first guard plate.

As a further description of the above technical solution:

the other side of barrel just is provided with the second guard plate for the port, the one end of blast pipe runs through the second guard plate.

As a further description of the above technical solution:

the interior of noise reduction layer is provided with metal fiber sound absorbing material and evenly fills.

As a further description of the above technical solution:

the silencing cover layer and the silencing inclined plate layer are provided with silencing pores in a penetrating mode.

As a further description of the above technical solution:

the noise reduction inclined plate layer is provided with a plurality of noise reduction inclined plate layers which are arranged at equal intervals.

As a further description of the above technical solution:

the blast pipe is provided with a plurality of and equidistant range.

As a further description of the above technical solution:

the ratio of the length of the exhaust pipe to the length of the inlet pipe is about 2: 1.

The utility model discloses following beneficial effect has:

1. the utility model discloses, the amortization layer and the amortization intussuseption that set up through the barrel inner wall are filled with metal fiber sound absorbing material and are carried out one and fall the use of making an uproar to the noise that produces.

2. The utility model discloses, the oval groove that sets up through connecting block department comes the air current to carry out a fast buffer and uses, from coming to carry out a reduction to the air current velocity of flow.

3. The utility model discloses, when the air current entered into in the blast pipe, the amortization pore that runs through amortization jacket layer and amortization slope sheet layer that blast pipe department set up carries out a wall to the air current that produces, cuts off through the multilayer and makes the air current velocity of flow reach a stable level to the effect of making an uproar is fallen in the realization.

4. The utility model discloses, form the effective support to the blast pipe through the backup pad, avoid the blast pipe to receive the air current influence to cause and rock to increase the noise, it is relative to set up the structure that two blast pipes and blast pipes are attached, thereby increase the efficiency of making an uproar of falling, be convenient for effectively carry out the amortization more and use.

Drawings

Fig. 1 is a schematic structural diagram of a strong noise reduction internal combustion engine exhaust muffler provided by the present invention;

fig. 2 is a three-dimensional view of the exhaust muffler of the internal combustion engine with strong noise reduction provided by the present invention;

fig. 3 is a top view of the exhaust muffler of the internal combustion engine with strong noise reduction provided by the present invention;

fig. 4 is a front view of the exhaust muffler of the internal combustion engine with strong noise reduction provided by the present invention.

Illustration of the drawings:

1. an exhaust pipe; 2. a barrel; 3. a sound-deadening layer; 4. a silencing jacket layer; 5. a sound-deadening inclined plate layer; 6. an elliptical slot; 7. connecting blocks; 8. an air inlet pipe; 9. a first guard plate; 10. a second guard plate; 11. and a support plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: internal-combustion engine exhaust muffler of making an uproar falls by force, including barrel 2, barrel 2's both sides all are provided with the port, barrel 2's the equal fixedly connected with noise damping layer 3 of upper and lower end inner wall, barrel 2's one side inner wall and for noise damping layer 3 fixedly connected with connecting block 7, connecting block 7's middle part is run through and is provided with oval groove 6, connecting block 7's one side and for oval groove 6's lateral surface fixedly connected with intake pipe 8, connecting block 7's opposite side and for oval groove 6's lateral surface fixedly connected with blast pipe 1, the one end side of blast pipe 1 and for barrel 2's inside fixedly connected with backup pad 11, backup pad 11 and barrel 2's the equal fixed connection of upper and lower end inner wall, the side of blast pipe 1 just runs through for one side of backup pad 11 and is provided with amortization jacket layer 4, the terminal surface and the fixedly connected with amo.

One side of barrel 2 just is provided with first guard plate 9 for the port, intake pipe 8 runs through first guard plate 9, the opposite side of barrel 2 just is provided with second guard plate 10 for the port, the one end of blast pipe 1 runs through second guard plate 10, the inside of amortization layer 3 is provided with the metal fibre acoustical absorption material and evenly fills, amortization jacket layer 4, amortization slope sheet layer 5 all run through and are provided with the amortization pore, amortization slope sheet layer 5 is provided with a plurality of and equidistant range, blast pipe 1 is provided with a plurality of and equidistant range, the length of blast pipe 1 and the length of intake pipe 8 ratio is about 2: 1.

The working principle is as follows: the utility model discloses a strong noise reduction internal combustion engine exhaust silencer, noise reduction use is carried out to the noise that produces through amortization layer 3 that barrel 2 inner wall set up and amortization layer 3 intussuseption is filled with metal fiber sound absorbing material, come the air current to carry out a fast buffer use through oval groove 6 that connecting block 7 department set up, thereby carry out a reduction to the air current velocity of flow, when the air current enters into blast pipe 1, carry out a partition to the air current that produces through amortization jacket 4 that sets up in blast pipe 1 department and amortization inclined plate layer 5 run through amortization pore, lead the air current velocity of flow to reach a stable level through the multilayer partition, thereby realize the effect of noise reduction, form the effective support to blast pipe 1 through backup pad 11, avoid blast pipe 1 to receive the air current influence and cause the rock, thereby increase the noise, set up two blast pipes 1 and the, thereby increasing the noise reduction efficiency and being convenient for more effectively carrying out noise reduction.

Finally, it should be noted that: 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 modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Internal-combustion engine exhaust muffler of making an uproar falls by force, including barrel (2), its characterized in that: the silencer is characterized in that ports are arranged on two sides of the barrel body (2), the upper end inner wall and the lower end inner wall of the barrel body (2) are fixedly connected with the silencing layer (3), the inner wall of one side of the barrel body (2) is fixedly connected with a connecting block (7) relative to the silencing layer (3), the middle of the connecting block (7) is provided with an elliptical groove (6) in a penetrating mode, one side of the connecting block (7) is fixedly connected with an air inlet pipe (8) relative to the outer side face of the elliptical groove (6), the other side of the connecting block (7) is fixedly connected with an exhaust pipe (1) relative to the outer side face of the elliptical groove (6), a supporting plate (11) is fixedly connected to the side face of one end of the exhaust pipe (1) relative to the inner part of the barrel body (2), the supporting plate (11) is fixedly connected with the upper end inner wall and the lower end inner wall, the terminal surface fixedly connected with amortization slope sheet layer (5) of amortization jacket layer (4), the terminal surface fixed connection of one side and amortization layer (3) of amortization slope sheet layer (5).

2. The strong noise reduction internal combustion engine exhaust muffler according to claim 1, characterized in that: one side of barrel (2) just is provided with first guard plate (9) for the port, intake pipe (8) run through first guard plate (9).

3. The strong noise reduction internal combustion engine exhaust muffler according to claim 1, characterized in that: the other side of barrel (2) just is provided with second guard plate (10) for the port, second guard plate (10) are run through to the one end of blast pipe (1).

4. The strong noise reduction internal combustion engine exhaust muffler according to claim 1, characterized in that: the interior of the sound-absorbing layer (3) is provided with metal fiber sound-absorbing materials which are uniformly filled.

5. The strong noise reduction internal combustion engine exhaust muffler according to claim 1, characterized in that: the silencing cover layer (4) and the silencing inclined plate layer (5) are provided with silencing pores in a penetrating mode.

6. The strong noise reduction internal combustion engine exhaust muffler according to claim 1, characterized in that: the silencing inclined plate layers (5) are arranged in a plurality of equidistant mode.

7. The strong noise reduction internal combustion engine exhaust muffler according to claim 1, characterized in that: the exhaust pipe (1) is provided with a plurality of exhaust pipes which are arranged at equal intervals.

8. The strong noise reduction internal combustion engine exhaust muffler according to claim 1, characterized in that: the ratio of the length of the exhaust pipe (1) to the length of the inlet pipe (8) is about 2: 1.