Muffler for household automobile
A muffler and car technology, applied in the direction of mufflers, machines/engines, engine components, etc., can solve the problems that automobile mufflers cannot meet the Euro IV standard, achieve good muffler effect, reduce air velocity, and reduce noise
Inactive Publication Date: 2011-05-25
王根良
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Problems solved by technology
[0002] In the field of automobile engineering technology, the automobile muffler is a very important component. With the improvement of technology, the country's emission standards for automobile noise are getting higher and higher, and the current standard has reached the Euro IV standard; but now the automobile muffler can not reach it European IV standard; as disclosed in Chinese patent 200720045759, a kind of automobile exhaust muffler includes: intake muffler pipe, muffler outer cover plate, intermediate pipe and exhaust muffler pipe, in the said intake muffler pipe, the middle The muffler holes with irregular apertures are set on the pipe and the exhaust muffler pipe, and the sound-absorbing material is wrapped along the diameter of the inlet muffler pipe and the exhaust muffler pipe; with the implementation of the new standard, there is an urgent need Develop a new type of automobile muffler that meets the Euro IV standard
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[0014] Such as figure 1 , 2 The shown family car muffler of the present invention comprises a muffler outer cylinder 5, an end cover 3, an exhaust pipe I 2, and an exhaust pipe II 6; two of the end covers 3 are located at the two ends of the outer cylinder, The exhaust pipe I 2 and the exhaust pipe II 6 are respectively connected; the inside of the outer cylinder of the muffler is provided with a guide pipe I 7 and a guide pipe II 10; the guide pipe I 7 is connected to the exhaust pipe I 2; The guide pipe II 10 evenly has small holes; the diameter of the muffler outer cylinder 5 is larger than that of the exhaust pipe I 2 and the exhaust pipe II 6; the muffler outer cylinder is symmetrically arranged with a A set of hanging feet 4; the guide pipe II 10 is not directly connected to the exhaust pipe II 6, and the guide pipe II 10 is arranged inside the outer cylinder of the muffler through a group of inner partitions II 9; the exhaust pipe A flange 1 is provided at one end of ...
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The invention discloses a muffler for a household automobile. The muffler comprises a muffler outer barrel, end covers, an exhaust pipe I and an exhaust pipe II, wherein two end covers are arranged at the two ends of the outer barrel and are connected with the exhaust pipe I and the exhaust pipe II respectively; a diversion pipe I and a diversion pipe II are arranged inside the muffler outer barrel; the diversion pipe I is connected with the exhaust pipe I; small holes are uniformly formed on the diversion pipe II; and the diameter of the muffler outer barrel is greater than those of the exhaust pipe I and the exhaust pipe II. In the muffler for the household automobile, the diameter of the muffler outer barrel is greater than those of the exhaust pipe I and the exhaust pipe II, so that an air stream sectional area is enlarged suddenly when air stream enters the muffler outer barrel through the exhaust pipe II, the speed of the air stream can be lowered and the aim of reducing noise is fulfilled; simultaneously, the small holes are formed on the diversion pipe II, so that turbulent flow can be reduced, the speed of the air stream is lowered and the aim of reducing noise can be achieved; and the muffler has a good muffling effect and can fully reach the European IV standard.
Description
technical field [0001] The invention relates to an automobile muffler, in particular to a family car muffler with simple structure and good noise reduction effect, which belongs to the technical field of automobile engineering. Background technique [0002] In the field of automobile engineering technology, the automobile muffler is a very important component. With the improvement of technology, the country's emission standards for automobile noise are getting higher and higher, and the current standard has reached the Euro IV standard; but now the automobile muffler can not reach it European IV standard; as disclosed in Chinese patent 200720045759, a kind of automobile exhaust muffler includes: intake muffler pipe, muffler outer cover plate, intermediate pipe and exhaust muffler pipe, in the said intake muffler pipe, the middle The muffler holes with irregular apertures are set on the pipe and the exhaust muffler pipe, and the sound-absorbing material is wrapped along the d...
Claims
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IPC IPC(8): F01N1/08F01N13/08
Inventor 王根良沈鹤琦
Owner 王根良