Unlock instant, AI-driven research and patent intelligence for your innovation.

Anti-carbon muffler device

A noise reduction device and anti-carbon technology, which is applied in the direction of noise reduction devices, exhaust devices, engine components, etc., to achieve the effect of optimizing the noise reduction effect, easy filling, and simple structure

Inactive Publication Date: 2014-09-10
CHENGDU KELIFU SCI & TECH
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the usual design is that the volume of the muffler chamber is 3-5 times of the engine displacement. In order to simplify the structure of the muffler, the muffler effect of the two-pipe non-porous muffler that is widely used at present is only about 20dB, which makes the vehicle emission The noise in the environment will even exceed 90dB, which makes the existing compact muffler structure need to be further improved in order to get a good balance in the noise reduction effect, muffler volume and structure, and engine power loss

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-carbon muffler device
  • Anti-carbon muffler device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 with figure 2 , The carbon deposition prevention muffler device provided by the present invention includes an air inlet pipe 9, an air outlet pipe 7 and a cylinder body 1. The cylinder body 1 has a hollow structure. The outlet end of the air inlet pipe 9 and the inlet end of the air outlet pipe 7 are respectively connected to the cylinder The hollow part of the body 1 is connected, and further includes a first partition 3 and a second partition 5 arranged in the hollow part, and at least one connecting pipe 8. The first partition 3 and the second partition 5 connect the hollow part It is divided into cavity one 2, cavity two 4 and cavity three 6 arranged in sequence. The axis of the connecting pipe 8, the air inlet pipe 9, the air outlet pipe 7 and the cylinder 1 are collinear. The outlet end of the air inlet pipe 9 is located in the cavity two 4, The trachea 7 passes through cavity three 6 and cavity two 4. The inlet end of the outlet pipe 7 is located...

Embodiment 2

[0024] This embodiment is further limited on the basis of embodiment 1: figure 1 with figure 2 In order to reduce the exhaust resistance of the engine outgas entering the present invention, so as to reduce the engine power consumption of the present invention, the first partition 3 and the second partition 5 are both provided with a plurality of penetrating two And the hole is a round hole, and the hole diameter of the round hole is in the range of 3-5 mm. The arrangement of circular holes is beneficial to prevent stress concentration under thermal stress. The aperture of the circular holes is set to balance the holes not being blocked, the rigidity of the first partition 3 and the second partition 5, and the airflow through each hole. Flow rate.

Embodiment 3

[0026] This embodiment is further limited on the basis of embodiment 1: figure 1 with figure 2 In order to facilitate the free thermal deformation of the present invention during the working process and prevent damage due to thermal stress, the outer walls of the first partition 3 and the second partition 5 are in clearance fit with the inner wall of the hollow portion of the cylinder 1, and Therefore, the communication pipe 8 is in clearance fit with the first partition 3 and the second partition 5.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an anti-carbon muffler device which comprises a gas inlet pipe, a gas outlet pipe, a barrel, a first separator, a second separator and at least one communicating pipe, wherein the barrel adopts a hollow structure; the hollow part of the barrel is divided into a first cavity, a second cavity and a third cavity by the first separator and the second separator; the outlet end of the gas inlet pipe is positioned in the second cavity; the gas outlet pipe passes through the third cavity and the second cavity; the inlet end of the gas outlet pipe is positioned in the first cavity and the inlet end of the gas outlet pipe adopts a blind end; both ends of the communicating pipe are respectively positioned in the first cavity and the third cavity; the part of the communicating pipe, which is positioned in the second cavity, and the parts of the gas outlet pipe, which are positioned in the first cavity and the third cavity, are all provided with a plurality of through holes; a cover board in bolt connection with the barrel is also arranged on the side wall of the barrel; the second cavity is also filled with asbestos. The anti-carbon muffler device is small in volume; under the premise of not increasing the volume of a muffling cavity, the noise reduction effect is optimized by overlaying of multiple layers of muffling effects on the basis of the prior art; a the noise reduction effect of 40dB can be achieved when power loss of the anti-carbon muffler for an engine is less than 7 percent.

Description

Technical field [0001] The invention relates to an engine muffling equipment, in particular to an anti-carbon deposition muffler device. Background technique [0002] In the urban environment, traffic noise is the pollution source with the strongest radiation and the widest impact. In the noise of motor vehicles, exhaust noise is one of the main noise sources, and its reduction is mainly through the installation of exhaust mufflers. The noise reduction of the muffler used in the vehicle in the prior art is to use the expansion of the gas volume in the sound amplification cavity to achieve the purpose of reducing noise, and at the same time, the design of the exhaust pipe length being half the wavelength of the sound wave is adopted to further optimize the noise reduction effect. [0003] The usual design in the prior art is that the volume of the muffler cavity is 3-5 times the engine displacement. In order to simplify the structure of the muffler, the muffler effect of the two-pi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F01N1/10F01N3/021
Inventor 胡明容
Owner CHENGDU KELIFU SCI & TECH