CN212318116U

CN212318116U - Motorcycle silencer

Info

Publication number: CN212318116U
Application number: CN202021002354.7U
Authority: CN
Inventors: 张双红
Original assignee: Chongqing Hongqian Machinery Equipment Co Ltd
Current assignee: Chongqing Hongqian Machinery Equipment Co Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-01-08
Anticipated expiration: 2030-06-03

Abstract

The utility model relates to a motorcycle silencer, which comprises a shell, an exhaust pipe and an intake pipe which are arranged in the silencer shell, a first chamber, a second chamber and a third chamber which are separated by a first clapboard, a second clapboard and a third clapboard, wherein the shell comprises an inner shell and an outer shell, and the wall of the inner shell is provided with an air vent; the inner shell is internally provided with a middle pipe connected with the first chamber, the second chamber and the third chamber, and the pipe wall of the middle pipe is provided with a vent hole. The utility model provides a motorcycle silencer with a smooth exhaust line, small power loss and good silencing effect.

Description

Motorcycle silencer

Technical Field

The utility model relates to a motorcycle exhaust system technical field, concretely relates to motorcycle silencer.

Background

The muffler is a device which can block sound transmission and allow airflow to pass through, is an important part for reducing exhaust noise of an internal combustion engine, and the performance of the muffler directly affects the noise of the engine and has great influence on the performance of the engine, such as power loss, oil consumption, torque and the like.

In the prior art, a muffler structure commonly adopted by a motorcycle comprises a shell, a resonator, a tail pipe, a cavity, two cavities and three cavities, wherein the cavity, the two cavities and the three cavities are sequentially arranged in the shell from front to back; the exhaust route and the silencing route are one route, the route is long, the air resistance is increased, the power loss is increased, and the problems of poor silencing characteristics of certain medium and low frequencies exist; the single-cavity silencer mainly has the problems of poor silencing characteristics of certain frequencies and very small high-frequency silencing volume.

Therefore, the main disadvantages of the prior art are: the exhaust line and the silencing line are one line, so that the exhaust air resistance is large, and the power loss is large; the silencing effect is not ideal.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a motorcycle silencer with a smooth exhaust line, small power loss and good silencing effect. The utility model provides a its technical problem adopt following technical scheme to realize:

a motorcycle silencer comprises a shell, an exhaust pipe and an intake pipe which are arranged in the silencer shell, and a first chamber, a second chamber and a third chamber which are separated by a first partition plate, a second partition plate and a third partition plate, and is characterized in that the shell comprises an inner shell and an outer shell, and the wall of the inner shell is provided with a vent hole; the inner shell is internally provided with a middle pipe connected with the first chamber, the second chamber and the third chamber, and the pipe wall of the middle pipe is provided with a vent hole.

Furthermore, two exhaust pipes are arranged, one end of the first exhaust pipe is arranged in the second cavity, and the other end of the first exhaust pipe is connected with the first exhaust port; one end of the second exhaust pipe is arranged in the third chamber, and the other end of the second exhaust pipe is connected with the second exhaust port.

Furthermore, vent holes are formed in the first partition plate and the second partition plate, so that the first chamber is communicated with the second chamber, and the second chamber is communicated with the third chamber through the vent holes.

Furthermore, one end of the air inlet pipe is connected with the air inlet, and the other end of the air inlet pipe is arranged in the first cavity; the air inlet pipe is arranged on part of the pipe wall of the first chamber and is provided with a vent hole.

Furthermore, the pipe walls of the middle pipe, the first chamber, the second chamber and the third chamber are provided with vent holes.

Further, a fourth cavity is formed between the inner shell and the outer shell, and the fourth cavity is communicated with the first cavity, the second cavity and the third cavity through the vent holes.

Further, the third partition plate is not provided with a vent hole.

The utility model relates to a motorcycle silencer, its beneficial effect lies in: under the condition of not changing the appearance of the original silencer, a main exhaust line is separated from a silencing resonance line, four chambers are arranged in the silencer, the silencing line is more complex, and the silencing and noise reducing effects are enhanced; compared with the prior art, the exhaust line is smoother, so that the exhaust resistance of the engine is reduced, the power loss is small, and the vehicle speed is increased quickly. The utility model discloses motorcycle silencer simple structure, noise elimination and noise reduction effect is better, satisfies exhaust system's requirement.

Drawings

The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings, in which:

fig. 1 is a sectional view of a motorcycle muffler of the present invention.

Fig. 2 is a sectional side view of a motorcycle muffler of the present invention.

In the drawing, 1 is an outer shell, 2 is an inner shell, 3 is a fourth chamber, 4 is a middle tube, 5 is a first exhaust tube, 6 is a second exhaust tube, 7 is an intake tube, 8 is a first chamber, 9 is a second chamber, 10 is a third chamber, 11 is a first partition plate, 12 is a second partition plate, 13 is a third partition plate, 14 is an air inlet, 15 is a first exhaust port, 16 is a second exhaust port, and 17 is an air vent.

Detailed Description

The following further explains the specific embodiments of the present invention with reference to the drawings:

as shown in fig. 1-2, a motorcycle muffler comprises a shell, an exhaust pipe and an intake pipe 7 arranged in the muffler shell, a first chamber 8, a second chamber 9 and a third chamber 10 which are separated by a first partition plate 11, a second partition plate 12 and a third partition plate 13, wherein the shell comprises an inner shell 2 and an outer shell 1, and the wall of the inner shell 2 is provided with a vent hole 17; the inner shell 2 is internally provided with a middle tube 4 which is connected with the first chamber 8, the second chamber 9 and the third chamber 10, and the tube wall of the middle tube 4 is provided with a vent hole 17.

Two exhaust pipes are provided, one end of the first exhaust pipe 5 is arranged in the second chamber 9, and the other end is connected with the first exhaust port 15; one end of the second exhaust pipe 6 is disposed in the third chamber 10, and the other end is connected to a second exhaust port 16. Compared with one exhaust pipe, the two exhaust pipes can exhaust more smoothly, the resistance of the silencer is improved, and the power loss is reduced; the gas of the second chamber 9 is discharged through the first exhaust duct 5 and the gas of the third chamber 10 is discharged through the second exhaust duct 6, reducing the main exhaust line.

The first partition plate 11 and the second partition plate 12 are provided with vent holes 17, so that the first chamber 8 and the second chamber 9, and the second chamber 9 and the third chamber 10 are communicated through the vent holes 17. And gas flows among the first chamber 8, the second chamber 9 and the third chamber 10 through the vent holes 17 in the first partition plate 11 and the second partition plate 12, so that the length of an exhaust line is increased, and the silencing effect is enhanced. The first cavity 8 forms a resonant cavity, the resonant cavity is designed in a matching mode according to the Helmholtz resonant cavity principle, noise is reduced in a targeted mode, and the noise reduction effect of other cavities is not influenced.

One end of the air inlet pipe 7 is connected with the air inlet 14, and the other end of the air inlet pipe is arranged in the first cavity 8; the air inlet pipe 7 is provided with a vent hole 17 on a part of the pipe wall of the first chamber 8.

The pipe walls of the middle pipe 4 connected with the first chamber 8, the second chamber 9 and the third chamber 10 are provided with vent holes 17, so that the first chamber 8 is communicated with the second chamber 9 and the third chamber 10, and the length of the silencing resonance circuit is increased.

A fourth chamber 3 is formed between the inner shell 2 and the outer shell 1, and the fourth chamber 3 is communicated with the first chamber 8, the second chamber 9 and the third chamber 10 through vent holes 17. The fourth chamber 3 plays a role in buffering, so that the first chamber 8 of the silencing circuit enters the fourth chamber 3, and then the fourth chamber 3 enters the second chamber 9 and the third chamber 10, so that the silencing circuit is more complex, the silencing and noise reducing effects are enhanced, the added fourth chamber 3 is not communicated with the exhaust circuit, the exhaust effect is not influenced, and the power loss is small.

The third partition 13 has no vent 17, so that the third chamber 10 forms a closed chamber with the outside, and the gas is prevented from directly flowing out.

Referring to fig. 2, the arrow in the drawing indicates the line direction of the muffling resonance line.

The above description is only for the preferred embodiment of the present invention, and the above description of the embodiment is only for the purpose of assisting understanding of the method and the core idea of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention by those of ordinary skill in the art should be included in the protection scope of the present invention.

Claims

1. The utility model provides a motorcycle silencer, includes the casing, sets up blast pipe and the intake pipe in the silencer casing, the first cavity, second cavity, the third cavity that separate into by first baffle, second baffle, third baffle, its characterized in that: the shell comprises an inner shell and an outer shell, and the wall of the inner shell is provided with a vent hole; the inner shell is internally provided with a middle pipe connected with the first chamber, the second chamber and the third chamber, and the pipe wall of the middle pipe is provided with a vent hole.

2. A motorcycle muffler as claimed in claim 1, wherein: one end of the first exhaust pipe is arranged in the second cavity, and the other end of the first exhaust pipe is connected with the first exhaust port; one end of the second exhaust pipe is arranged in the third chamber, and the other end of the second exhaust pipe is connected with the second exhaust port.

3. A motorcycle muffler as claimed in claim 1, wherein: and vent holes are formed in the first partition plate and the second partition plate, so that the first chamber is communicated with the second chamber, and the second chamber is communicated with the third chamber through the vent holes.

4. A motorcycle muffler as claimed in claim 1, wherein: one end of the air inlet pipe is connected with the air inlet, and the other end of the air inlet pipe is arranged in the first cavity; the air inlet pipe is arranged on part of the pipe wall of the first chamber and is provided with a vent hole.

5. A motorcycle muffler as claimed in claim 1, wherein: and the pipe walls of the middle pipe, which are connected with the first chamber, the second chamber and the third chamber, are provided with vent holes.

6. A motorcycle muffler as claimed in claim 1, wherein: and a fourth cavity is formed between the inner shell and the outer shell and is communicated with the first cavity, the second cavity and the third cavity through the vent holes.

7. A motorcycle muffler as claimed in claim 1, wherein: and the third clapboard is not provided with a vent hole.