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Carbon emission reduction muffler for vehicle

A technology for mufflers and motor vehicles, applied in machines/engines, mechanical equipment, power units, etc., can solve the problems of difficulty in large-scale industrialization, low reliability, and high manufacturing costs, and accelerate the process of large-scale industrialization. The effect of improving manufacturability and reducing equipment investment

Inactive Publication Date: 2011-03-30
李定初 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, there is following defect in above-mentioned waste gas treatment device: one, because the receiving pipe and expansion pipe in the waste gas treatment device all are the holes that are cut with machine tool in the steel plate that is 15~25mm in thickness, and drilling machine drills, and its manufacturability is comparatively low. Poor, high manufacturing cost, large-scale industrialization is difficult; 2. The negative pressure pipes used in the exhaust gas treatment device need to be connected with threaded pipe joints, which are prone to failure due to thermal expansion and contraction, and the reliability is not high

Method used

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  • Carbon emission reduction muffler for vehicle
  • Carbon emission reduction muffler for vehicle
  • Carbon emission reduction muffler for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: From Fig. 1, Fig. 2 and Fig. 3, it can be seen clearly that the motor vehicle emission reduction muffler comprises: a housing made of an outer tube 3, a front end cover 4 and a rear end cover 5, and the front end cover 4 of the housing is set There is an air inlet pipe 6, and the rear end cover 5 of the shell is provided with an air outlet pipe 7, and several stages of muffler tube clapboard assemblies 9 composed of single-piece clapboards 2 and several muffler tube assemblies 1 are arranged in parallel in the shell. The basic structural specifications of the silencing tube baffle assemblies 9 at all levels are the same, except that the baffle 2 of the silencing tube baffle assembly 9 of the first stage has no ventilation holes, the baffles 2 of the silencing tube baffle assemblies 9 of other levels Ventilation holes 21 are evenly distributed on the top; airflow chambers 10 are formed between the 9 silencing tube baffle assemblies at all levels; a number of...

Embodiment 2

[0040]Embodiment 2: It can be clearly seen from Fig. 6, Fig. 7 and Fig. 8 that the structure of the motor vehicle emission reduction muffler is basically the same as that of Embodiment 1. The only difference is that there are several stages of muffler tube baffle assemblies 9 composed of a front baffle 2a, a rear baffle 2b and a number of muffler tube assemblies 1 arranged in parallel in the casing. That is: the distance between the front bulkhead 2a and the rear bulkhead 2b is slightly smaller than the length of the muffler pipe assembly 1, the muffler pipe assembly 1 of this embodiment is a single tapered pipe 11b, and the front bulkhead 2a is regularly arranged with supply cones. The large-diameter mounting hole 22a for inserting the shaped tube 11b, and the small-diameter mounting hole 22b corresponding to the large-diameter mounting hole 22a on the front bulkhead 2a is provided on the rear bulkhead 2b. The tapered pipe 11b is inserted into the large-diameter mounting hole...

Embodiment 3

[0045] Embodiment 3: From Fig. 9, Fig. 10 and Fig. 11, it can be clearly seen that the structure of the motor vehicle emission reduction muffler is basically the same as that of Embodiment 2, and several stages are arranged in parallel in the housing by the front partition 2a, the rear partition 2b and A muffler tube partition plate assembly 9 composed of several muffler tube assemblies 1 . The only difference is that the muffler pipe assembly 1 is composed of a plurality of conical pipes 11a (see FIG. 4a ) connected in series with equal-diameter nozzles at both ends. As shown in FIG. 5 , gaps are left between the tapered tubes 11 a with equal-diameter nozzles at both ends, and they are relatively welded and fixed.

[0046] The muffler pipe assembly 1 can also be formed in series by conical pipes 11c with equal-diameter nozzles at one end.

[0047] The tapered pipe 11a that is provided with equal-diameter nozzles at both ends is formed by rolling a metal sheet with a thicknes...

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Abstract

The invention discloses a carbon emission reduction muffler for a vehicle which comprises a casing provided with an air inlet pipe and an air outlet pipe. A plurality of grades of muffler pipe separator components are arranged in the casing in parallel. The structures and the specifications of every grade of the muffler pipe separator components are the same or not. The muffler pipe separator component comprises at least one separator which is provided with a plurality of installation holes and muffler pipe components with the quantity corresponding to the installation holes. A plurality of residual air feedback pipes are arranged between grades of the muffler pipe separator components. Except a first grade of the separator of a single separator structure or a front separator of a double-separator structure, other grades of single separators or a back separator of the double-separator structure are all provided with air holes. The carbon emission reduction muffler for the vehicle characterized in that: the muffler pipe separator component is formed from a plurality of series tapered tubes. The invention overcomes the defects of complex technical process andhigh manufacturing cost of the prior art, improves the manufacturability, reduces the equipment investment, lowers the cost, improves the production efficiency, enlarges the waste gas transformation space, improves the waste gas transformation efficiency and the carbon emission reduction effect.

Description

technical field [0001] The invention relates to an exhaust gas emission treatment device, in particular to a motor vehicle emission reduction muffler. Background technique [0002] At present, the main method to prevent and control automobile exhaust pollution is to install a three-way catalytic converter, thereby greatly reducing CO, HC, and NO in automobile exhaust. 2 content. With CO 2 The resulting greenhouse effect warms the climate, and the new vehicle emission standards have a significant impact on CO 2 There are also stringent requirements for emissions. However, the three-way catalytic converter still cannot make the exhaust gas of automobiles reach zero emission. For this reason, Chinese patent ZL 03 146969.8 discloses an exhaust gas treatment device named "Integrated Momentum Exchanger for Prevention and Control of Motor Vehicle Exhaust Gas Pollution". The number of installations is equal, and it is composed of highly integrated jet receiving tubes, diffuser ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N1/08F01N7/08B60K13/04
CPCF01N2470/24F01N1/089F01N1/083F01N2470/02F01N2490/04
Inventor 李定初
Owner 李定初