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Automobile Exhaust Muffler

A technology for automobile exhaust and muffler, which is applied to exhaust devices, mufflers, machines/engines, etc., can solve the problems of fatigue fracture failure, abnormal noise, and low strength of the muffler inner tube, and achieves a simple structure. , low manufacturing cost, enhanced strength effect

Active Publication Date: 2021-12-10
DONGFENG LIUZHOU MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to provide an automobile exhaust muffler, which can solve the problem of low strength of the inner tube of the muffler, and the failure of the inner tube of the muffler due to fatigue fracture caused by long-term vibration transmission, thereby generating abnormal noise

Method used

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  • Automobile Exhaust Muffler

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Experimental program
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Embodiment Construction

[0015] The present invention will be further detailed below with reference to the accompanying drawings:

[0016] like figure 1 A car exhaust muffler, including a muffler in the muffler of the silencer portion 2-1, and a muffler having a muffler on the tube wall of the muffler portion 2-1, and the muffler insertion 2 is fitted with a muffler case. Body 1, gap in the muffler housing 1 and the muffler 2 between the tubing 2. The muffler inside the intubation 2 has a reinforcing tube portion 2-2 that is separated into two sections of the muffler portion 2-1, and the reinforcing tube portion 2-2 is equipped with a reinforcing rib 4; the middle portion of the reinforcing pipe portion 2-2 is contracted into the diameter. Small than the diameter of the silence pipe portion, the reinforcing rib 4 is located in the middle of the shrink portion and surrounds the outside of the shrink portion. The two ends of the muffler housing 1 are respectively provided with a reduction portion connected ...

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Abstract

The invention discloses an automobile exhaust muffler, which relates to the technical field of automobile manufacturing, and comprises a muffler inner insertion pipe provided with a muffler pipe part, and muffler holes are distributed on the pipe wall of the muffler pipe part, and the inner insertion pipe of the muffler The muffler shell is set, and the muffler cotton is installed between the muffler shell and the inner tube of the muffler; A reinforcing rib is provided on the reinforcing pipe part. Compared with the prior art, the inner tube of the muffler of the present invention is provided with a reinforced tube part that divides the muffler tube into two sections, and the reinforced tube is provided with reinforcing ribs; the overall strength of the inner tube of the muffler is improved, and the muffler is avoided. The inner tube is coupled with the common speed and frequency of the vehicle, and the long-term vibration transmission will cause fatigue and fracture failure of the inner tube of the muffler, thereby eliminating abnormal noise.

Description

Technical field [0001] The present invention relates to the field of automotive manufacturing techniques, in particular a car exhaust muffler. Background technique [0002] The main role of the car exhaust muffler is to reduce the exhaust noise of the engine, and the high temperature exhaust gas can be safely and efficient, and the performance of its performance directly affects the size of the vehicle, the outer noise. The currently used car exhaust muffler includes a muffler in an muffler in a muffler, a muffler wall distributed on the tube wall of the muffler portion, and a muffler housing, the muffler housing, both ends and muffler of the muffler housing Inner intubation welding, gap in the muffler housing and the muffler in the muffler. This automotive exhaust muffler exists in the following procedure: the strength of the intubation in the muffler is low, the intubation in the muffler is coupled to the vehicle, and the long-time vibration transmission causes the tube fatigue...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N13/00F01N13/16
CPCF01N13/00F01N13/16
Inventor 唐竞林长波莫伟树毛德龙许忠杰程志谋胡先锋吴颂
Owner DONGFENG LIUZHOU MOTOR
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