Automobile exhaust emission device with noise reduction device
A technology for automobile exhaust and noise reduction, which is applied in the direction of exhaust devices, noise reduction devices, engine components, etc., can solve the problems of poor effect, impossibility of popularization, and high cost, and achieve the effect of convenient transformation, low cost, and compact structure
Inactive Publication Date: 2014-08-06
SHANGHAI HEHUA ELECTRONICS TECH
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Problems solved by technology
[0002] In order to reduce the exhaust noise of automobiles, especially heavy vehicles, various methods have been used in automobile engineering, such as the use of new materials, etc., but these methods are either ineffective or costly and cannot be widely used
Especially the pulsating exhaust noise of the engine has been unable to solve
Method used
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[0018] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0019] The invention provides an automobile exhaust device with a noise reduction device.
[0020] like Figure 1 to Figure 5 As shown, the automobile exhaust device 1 with noise reduction device of the present invention comprises a helically bent main exhaust pipe 3, an inlet pipe 2 is provided at the front of the main exhaust pipe 3, and a pair of outlet pipes 4 are provided at its tail , the front end of the inlet pipe 2 is provided with a detachable pulsation connecting pipe 7, and the main exhaust pipe 3 is provided with a first noise reduction part 5 and a second noise reduction part 6, and the second noise reduction part 6 is detachable I...
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The invention discloses an automobile exhaust emission device with a noise reduction device, which comprises a spiral curving main exhaust pipe, wherein an inlet pipe is arranged at the front part of the main exhaust pipe; a pair of outlet pipes is arranged at the tail of the main exhaust pipe; a detachable pulsation connecting pipe is arranged at the front end of the inlet pipe; a first noise reduction part and a second noise reduction part are arranged in the main exhaust pipe; the second noise reduction part is sleeved with the inner part of the first noise reduction part in a detachable manner. According to the automobile exhaust emission device with the noise reduction device, as the pulsation connecting pipe on the inlet pipe of the main exhaust pipe is adopted and a plurality of acoustic absorption cavities are arranged, the pulsation exhaust noise of a motor is reduced greatly; moreover, as the two noise reduction parts in the spiral curving main exhaust pipe are adopted, the exhaust noise of the motor can be further reduced. The automobile exhaust emission device is compact in structure, convenient for transformation and low in cost.
Description
technical field [0001] The present invention relates to an automobile device, more precisely, an automobile exhaust device with a noise reduction device. Background technique [0002] In order to reduce the exhaust noise of automobiles, especially heavy-duty vehicles, various methods have been used in automobile engineering, such as the use of new materials, etc., but these methods are either ineffective or costly and cannot be widely promoted. Especially the pulsating exhaust noise of the engine has been unable to be resolved. Contents of the invention [0003] The invention mainly solves the technical problems existing in the prior art, thereby providing an automobile exhaust device with a noise reduction device. [0004] Above-mentioned technical problem of the present invention is mainly solved by following technical scheme: [0005] An automobile exhaust device with a noise reduction device, the automobile exhaust device with a noise reduction device includes a spir...
Claims
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Inventor 不公告发明人
Owner SHANGHAI HEHUA ELECTRONICS TECH