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Exhaust manifold for exhaust device of internal combustion engine

A technology of exhaust elbow and exhaust device, which is applied in the direction of exhaust device, exhaust treatment, noise reduction device, etc., can solve the problem of exhaust elbow weight and achieve the effect of reducing thermomechanical stress

Inactive Publication Date: 2015-09-23
BENTELER AUTOMOBILTECHNIK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However these measures resulted in the exhaust elbow becoming heavier and more expensive

Method used

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  • Exhaust manifold for exhaust device of internal combustion engine
  • Exhaust manifold for exhaust device of internal combustion engine
  • Exhaust manifold for exhaust device of internal combustion engine

Examples

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Embodiment Construction

[0025] with the help of Figures 1 to 5 The illustration in the figure illustrates an exhaust manifold 1 according to the invention for an exhaust system of an internal combustion engine.

[0026] The exhaust manifold 1 has an inlet flange 2 and an outlet flange 3 , an inner pipe system 8 comprising a plurality of pipe parts 4 , 5 , 6 , 7 and a housing 9 surrounding the inner pipe system 8 at a distance. . The housing 9 consists of two shell parts 10 , 11 , a lower shell and an upper shell. The shell parts 10 , 11 are connected to one another at their overlapping edges 12 , 13 , in particular welded to one another.

[0027] Exhaust gases from the individual cylinders of the internal combustion engine pass through inlet openings 14 in the inlet flange 2 into the pipe pieces 4 , 5 , 6 , 7 . The exhaust gas is collected by the pipes 4 to 7 , redirected and fed to the outlet flange 3 . The inner tube system 8 is designed symmetrically about its vertical center axis. The pipe ...

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PUM

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Abstract

An exhaust manifold for an exhaust system of a combustion engine includes an internal pipe system having a plurality of pipe sections and an outer shell which is disposed in spaced-apart surrounding relationship to the internal pipe system and joined to an outlet flange. The outlet flange includes a neck portion, an outer flange portion adjacent to the neck portion, and an inwardly directed shoulder portion which extends from the neck portion outwards, with the outer shell being joined at the shoulder portion to the outlet flange.

Description

technical field [0001] The invention relates to an exhaust manifold for an exhaust system of an internal combustion engine. Background technique [0002] An exhaust manifold is a component of the exhaust system of an internal combustion engine. The exhaust elbow is directly flanged to the engine or the cylinder head of the engine, and is used to collect or accumulate the exhaust gas discharged from each cylinder and lead it to the exhaust gas discharge port. In this respect, the exhaust manifold (also referred to in technical terms as exhaust manifold / exhaust manifold) forms the intake area of ​​the exhaust system. [0003] An exhaust manifold for exhaust gas from an internal combustion engine having more than three cylinders arranged in a single row is known from DE 101 02 637 A1 and belongs to the prior art. The exhaust manifold has an inner pipe system, where an inner shell is formed, which is surrounded by an outer shell so that an air gap is formed between the inner s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N13/10F01N13/14
CPCF01N13/102F01N13/143F01N13/141F01N13/10F01N13/14F01N13/1872F01N2260/20F01N13/1894F01N13/1805F01N2260/10F01N2530/04F01N2340/00F01N13/16F01N13/1811F16L21/00F16L23/00
Inventor U·菲舍尔T·戈克尔A·A·哈瓦瓦拉E·格鲁斯曼
Owner BENTELER AUTOMOBILTECHNIK GMBH
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