A kind of automobile exhaust gas purification muffler
A technology for automobile exhaust and muffler, which is applied to mufflers, exhaust devices, machines/engines, etc., can solve problems such as poor muffler effect and achieve good muffler effect.
Inactive Publication Date: 2015-09-02
HUNAN GEELY AUTOMOBILE COMPONENTS +1
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Problems solved by technology
[0004] In order to overcome the disadvantages of poor noise elimination effect of the automobile exhaust gas purification muffler in the prior art, the present invention provides an automobile exhaust gas purification muffler with broadband noise reduction characteristics and better noise elimination effect
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[0016] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0017] like figure 1 A kind of automobile exhaust purification muffler shown, comprises muffler housing 1, the inlet pipe 2 that is connected with one end of muffler housing, the outlet pipe 3 that is connected with the other end of muffler housing, and muffler housing 1 comprises inner housing 16 and outer shell Body 15, an insulating layer 17 is arranged between the inner casing 16 and the outer casing 15, and the insulating layer can keep a higher temperature in the muffler casing, which is beneficial to the decomposition of poisonous gases such as carbon monoxide, hydrocarbons, and nitrogen oxides. Purification, the heat insulation layer 17 in the present embodiment is an asbestos mesh heat insulation layer; the muffler housing 1 is provided with a purification pipe 4 communicating with the intake pipe, and the purification pipe 4 includes a ...
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The invention discloses an exhaust gas purification silencer of a car. The exhaust gas purification silencer of the car comprises a silencer shell, an air inlet pipe and an air outlet pipe, wherein a purification pipe is arranged in the silencer shell and is sleeved with a purification pipe sleeve, an open end of the purification pipe sleeve is connected with an air inlet end of the silencer shell, an annular exhaust gap is formed between the outer wall of the purification pipe sleeve and the inner wall of the silencer shell, an exhaust cavity is formed between a sealed end of the purification pipe sleeve and an air outlet end of the silencer shell, a plurality of silencing holes are formed in the pipe wall of an air outlet end of the purification pipe, a plurality of air outlet holes are formed in the lateral surface of the open end of the purification pipe sleeve, a silencing check ring is arranged in the exhaust cavity, the outer ring of the silencing check ring is in attaching connection with the inner wall of the silencer shell, a round perforated plate is arranged between the silencing check ring and the air outlet end of the silencer shell, and the center of the round perforated plate is fixedly connected with the bottom surface of the purification pipe sleeve through a fixing rod. Therefore, the exhaust gas purification silencer of the car has the advantages of broadband silencing and a better silencing effect.
Description
technical field [0001] The invention relates to an automobile exhaust gas purification device, in particular to an automobile exhaust gas purification muffler. Background technique [0002] Environmental pollution control and solving the energy crisis are two major problems that need to be solved urgently in today's society. Automobile emission pollution is the main source of environmental pollution. It has the characteristics of large mobility and wide pollution area. In addition, the number of automobiles has increased sharply in recent years. Therefore, the research on automobile emission control technology has attracted more and more attention. The three-way catalytic converter device currently used in the market can purify CO, HC, and NOx at the same time, but it has no muffler function and needs an independent connection muffler. [0003] Chinese patent application publication number: CN102322315A, the application publication date is January 18, 2012, which discloses ...
Claims
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IPC IPC(8): F01N3/08F01N1/12
Inventor 许铭刘向阳白弘基
Owner HUNAN GEELY AUTOMOBILE COMPONENTS