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exhaust elbow

A technology of exhaust elbow and exhaust port, which is applied in exhaust treatment, exhaust device, muffler device, etc., to achieve the effect of reliable and simple method, simple structure and low cost

Inactive Publication Date: 2018-06-26
BENTELER AUTOMOBILTECHNIK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

What is troublesome in this case is the additional seal between the external system or the exhaust gas collection housing and the fastening via the fixing

Method used

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Embodiment Construction

[0032] With the help of figure 1 The view of -6 presents an exhaust manifold 1 according to the invention of an exhaust system of an internal combustion engine. Figure 7 A variant of the exhaust manifold 1 is shown. The exhaust manifold 1 can be fastened to a cylinder head (not shown here) of a motor vehicle internal combustion engine.

[0033] The exhaust elbow 1 comprises a housing 2 with an inlet flange 3 and an exhaust hole 4 . The exhaust manifold 1 is attached via the intake flange 3 to the cylinder head of the internal combustion engine. The intake flange 3 has a plurality of intake openings 5 ​​, via which the exhaust gases from the individual cylinders are diverted into the exhaust manifold 1 . The exhaust gas is conveyed via the exhaust opening 4 to a downstream component of the exhaust system, for example an exhaust gas turbocharger 6 as shown here.

[0034]The housing 2 comprises an inner shell 7 and an outer shell 8 . The inner shell 7 consists of two shell ...

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Abstract

The present invention relates to an exhaust elbow 1 of an exhaust device of an internal combustion engine, comprising a casing 2 and an intake flange 3 having a plurality of intake ports 5 that can be fixed on a cylinder head of an internal combustion engine and including an exhaust port 4, The outer shell 2 includes an inner shell layer 7 and an outer shell layer 8 and an insulating material 14 is inserted between the outer shell layer 8 and the inner shell layer 7 . A guide plate 20 is provided on the inlet flange side of the inner shell layer 7 and the outer shell layer 8, the guide plate has an inlet hole 21 corresponding to the inlet port 5 and is engaged with the inlet flange 3, wherein the outer shell layer 8 uses Its edge 30 on the inlet flange side surrounds the engagement guide plate 20 and engages with the inlet flange 3 and the guide plate 20 , and the guide plate has positioning means 22 for positioning the inner shell 7 relative to the inner shell 7 . The guide plate 20 and the outer shell 8 are mounted in a floating manner.

Description

technical field [0001] The invention relates to an exhaust elbow of an internal combustion engine exhaust device. Background technique [0002] The exhaust elbow is a part of the exhaust system of an internal combustion engine, especially a vehicle internal combustion engine. The exhaust manifold, which is attached directly to the cylinder head of the internal combustion engine, collects the exhaust gases from the individual cylinders and directs them to the exhaust ports. The exhaust manifold is therefore often also referred to as an exhaust gas collector. [0003] The exhaust elbow that isolates the air gap belongs to the prior art through US 5 729 975 A. The exhaust manifold has an inner pipe system and a jacket surrounding the inner pipe system with a distance, as well as an inlet flange and an outlet flange. The exhaust manifold known from DE 101 02 637 A1 also has an inner pipe system formed there as an inner shell which is surrounded by an outer shell so that an ai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N13/10
CPCF01N13/10F01N13/102F01N13/1811F01N13/1872F01N13/1888F01N2260/08F01N2260/10F01N2450/22F01N1/24F01N13/14F01N13/18
Inventor U·菲舍尔E·格鲁斯曼T·戈克尔
Owner BENTELER AUTOMOBILTECHNIK GMBH
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