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Zigzag type catalytic converter

A technology for exhaust systems and internal combustion engines, which is applied in exhaust treatment, exhaust devices, mechanical equipment, etc., and can solve problems such as high production costs, large flow resistance, and power loss of internal combustion engines.

Inactive Publication Date: 2008-10-15
DOLMAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A problem however is the high production outlay and the resulting high production costs of this type of exhaust system
Moreover, the configuration used to position the catalytic elements causes considerable flow resistance, which leads, inter alia, to power losses of the internal combustion engine

Method used

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  • Zigzag type catalytic converter
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  • Zigzag type catalytic converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] figure 1 A three-dimensional view showing a first embodiment of the exhaust system 100 of the present invention. The exhaust system 100 is configured to be substantially cubic. The housing 10 thus includes two elements, namely a front shell 11 and a rear shell 14. The two shells 11, 14 are firmly joined together by crimping. From figure 1 It cannot be seen that a deflection shell 19 is held in the shell 10 by the bead 16. In the front housing 11, there are two exhaust gas discharge ports 15a. A part of a net-type or perforated-plate-type catalytic element 22 arranged behind the front housing 11 can be seen through the right port 15a. Obviously, the front shell 11 includes a wave portion 12, which at the same time forms a part of the exhaust gas guiding device 17. The exhaust gas of the internal combustion engine enters the exhaust system 100 through an exhaust gas inlet 15b.

[0038] by figure 2 The working principle of the exhaust system 100 becomes clearer. The figure...

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PUM

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Abstract

A exhausting system (100) is used for internal combustion engine, the said exhausting system comprises: a housing (10) with at least one waste gas inlet (15b) and the other waste gas outlet (15a), and a catalytic element (22) installed in the exhausting system (100) housing (10), in order to purify the waste gas in internal combustion engine with this mode, thus making the majority waste gas flow through the catalytic element, the said exhausting system (100) can be easily manufactured with low cost, but still can purify all waste gas through the catalytic element, and will not cause power loss of internal combustion engine. Wherein, waste gas (27) get through a waste gas guide arrangement (17) alternately flowing over catalytic element (22).

Description

Technical field [0001] The invention relates to an exhaust system for an internal combustion engine, which can be a two-stroke or four-stroke Otto cycle engine. Due to its compact construction, this exhaust system can also be used in hand-controlled tools, such as gasoline-powered chainsaws, hedge trimmers or similar devices. The exhaust system thus includes a housing provided with at least one exhaust gas inlet and another exhaust gas outlet. In order to prevent the exhaust gas of the internal combustion engine from being discharged into the atmosphere without being purified, a catalytic element is additionally arranged in the casing of the exhaust system, so that at least the main part of the exhaust gas flows through before all the exhaust gas is discharged into the atmosphere through the exhaust gas outlet. Catalytic element. Background technique [0002] It is known in the prior art to use catalytic elements in exhaust systems to reduce the emission of pollutants from intern...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/28F01N1/00F01N3/00F01N3/10
CPCF01N3/2885F01N2590/06F01N3/28F01N1/003F01N2330/12F01N3/2892F01N2240/20
Inventor H·拉德尔M·克吕格尔
Owner DOLMAR