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Motorcycle muffler of dispaceable catalytic converter

A catalytic converter and muffler technology, which is applied in the direction of mufflers, machines/engines, engine components, etc., can solve problems such as inability to take out, and achieve the effects of easy disassembly, simple and convenient installation and fast installation

Inactive Publication Date: 2005-05-11
LONGXIN IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the structure of adding a catalytic converter to a motorcycle muffler is as follows: figure 1 As shown, the catalytic converter fixing pipe 3 where the catalytic converter 4 is installed is welded to the exhaust pipe 2 of the muffler 1. The catalytic converter 4 of this structure is installed before the chrome plating of the muffler manufacturer, and cannot be taken out when it fails For replacement, only the muffler can be replaced, and the acid in the production plating process will also have a negative impact on the catalytic converter

Method used

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  • Motorcycle muffler of dispaceable catalytic converter
  • Motorcycle muffler of dispaceable catalytic converter
  • Motorcycle muffler of dispaceable catalytic converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 2 to Figure 6 As shown, the motorcycle muffler is composed of a muffler part 1 and an exhaust pipe. The exhaust pipe adopts a split design and is divided into two sections 2a, 2b. The end of the exhaust pipe 2a directly connected to the muffler part 1 is expanded by an expansion tool to make its inner diameter larger to form a catalytic converter fixed pipe 3, and the catalytic converter fixed pipe 3 is connected to the exhaust pipe 2b by a hoop connection. There are four (or other numbers) axial slots 32 at the connecting end of the catalytic converter fixing pipe 3, and the end of the connecting end of the exhaust pipe 2b connected thereto is inserted into the connecting end of the catalytic converter fixing pipe 3, and two A sealing element 6 is installed between them, and the connecting end of the catalytic converter fixing pipe 3 is fastened by a hoop 5 outside.

[0029] A step 31 is processed at the connecting end of the catalytic converter fixed ...

Embodiment 2

[0034] Such as Figure 7 As shown, the present embodiment is different from Embodiment 1 in that the catalytic converter fixed pipe 3 is an independent pipe section, and the diameter of this pipe section is larger than the diameter of the exhaust pipe 2a, 2b of the muffler, and the catalytic converter fixed pipe 3 is two The ends are respectively connected to the exhaust pipes 2b and 2a through hoops 5, 5', and the connection structure is exactly the same as the hoop connection structure in Embodiment 1, and will not be repeated in this embodiment. Compared with Example 1, this structure only needs to disassemble two bolts 6 and 6' when the catalytic converter 4 is replaced, but if there are carbon deposits or other dirt blocked at the catalytic converter fixing pipe 3 position to make catalytic conversion When the device 4 is difficult to take off, the catalytic converter 4 can be poked out from one end of the catalytic converter fixing pipe 3, so it is more convenient.

[0...

Embodiment 3

[0037] Such as Figure 8 to Figure 10 As shown, what is disclosed in this embodiment is a way in which the catalytic converter fixing pipe 3 is connected to the exhaust pipes 2a and 2b through a loose flange.

[0038] Depend on Figure 8 to Figure 10It can be seen that the fixed pipe 3 of the catalytic converter is an independent pipeline whose inner diameter and outer diameter are larger than the exhaust pipes 2a and 2b, and its two ends are provided with steps 31 so that the inner diameters of both ends are larger than the inner diameter of the middle part and the end faces of the steps form a seal. End faces, the connecting ends of the exhaust pipes 2a and 2b are all provided with flange-like protruding rings 21 to form a sealing end face, the connecting ends of the exhaust pipes 2a and 2b are inserted into the two ends of the catalytic converter fixing pipe 3, and on the catalytic converter fixing pipe A sealing element 6 is installed between the stepped end face 31 of th...

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PUM

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Abstract

A motorcycle's silencer with a detachable catalytic converter is composed of a silencer, an exhaust tube with a catalytic converter fixing tube, and a catalytic converter fixed in its fixing tube. It features that the one or both ends of said fixing tube are connected to said exhaust tube in movable mode, so detaching the catalytic converter easily.

Description

technical field [0001] The invention relates to a motorcycle muffler with a catalytic converter, in particular to a motorcycle muffler which can conveniently replace the catalytic converter. Background technique [0002] The motorcycle muffler is connected to the exhaust port of the engine through a section of exhaust pipe. Due to the incomplete combustion of fuel during engine operation, the exhaust gas will contain a certain amount of harmful gases. For the sake of environmental protection, people use some exhaust gas purification technologies to further process the motorcycle engine exhaust gas to reduce the content of harmful gases in the discharged exhaust gas. Catalytic converter technology is one of the main means for purifying engine exhaust gas. By installing a catalytic converter in the muffler, some harmful gases in the exhaust gas caused by insufficient fuel combustion are further catalyzed and oxidized into harmless gases. To achieve the purpose of harmless di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/24F01N13/18
Inventor 何军朱树松高洪军刘飞
Owner LONGXIN IND GROUP
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