Flange plate

Patent metadata

Field	Value
Publication number	US-2016138458-A1
Application number	US-201414777637-A
Country	US
Kind code	A1
Filing date	Mar 19, 2014
Priority date	Mar 20, 2013
Publication date	May 19, 2016
Grant date	—

Abstract

A flange plate for a manifold of an exhaust-gas system for internal combustion engines, which flange plate can be fixed via at least one holding device to an exhaust-gas outlet connecting piece of the internal combustion engine by a first outer layer, formed as a mounting layer, which can be placed at least partially directly or indirectly against the exhaust-gas outlet connecting piece via a seal, and the flange plate can be applied to the holding device by a second outer layer, formed as a holding layer, in order to generate a holding force F, acting at a right angle to the mounting layer, for sealingly placing the mounting layer against the exhaust-gas outlet connecting piece, and the flange plate having at least a first intermediate layer which is arranged, relative to the holding force F, between the mounting layer and the holding layer. Here, the first intermediate layer is formed as a cavity structure, wherein the cavity structure has single- or multiple-part wall parts which extend in a direction parallel to the mounting layer and are arranged adjacent to one another, the wall parts having a width b 1 , measured in a direction parallel to the mounting layer, and having a height h 1 , measured in a direction at a right angle to the mounting layer, where h 1 >b 1 , wherein the different wall parts delimit a plurality of cavities which are open towards the mounting layer or towards the holding layer or, together with the mounting layer and the holding layer, delimit an open-ended channel.

First claim

What is claimed is:

1 . A flange plate for a manifold of an exhaust-gas system for internal combustion engines, comprising: the flange plate which can be fixed via at least one holding device to an exhaust-gas outlet connecting piece of the internal combustion engine by a first outer layer, formed as a mounting layer, which can be placed at least partially directly or indirectly against the exhaust-gas outlet connecting piece via a seal, said flange plate being applicable to the holding device by a second outer layer, formed as a holding layer, in order to generate a holding force F, acting at a right angle to the mounting layer, for sealingly placing the mounting layer against the exhaust-gas outlet connecting piece, said flange plate having at least a first intermediate layer which is arranged, relative to the holding force F, between the mounting layer and the holding layer,
wherein the first intermediate layer is formed as a cavity structure, wherein the cavity structure has single- or multiple-part wall parts which extend in a direction parallel to the mounting layer and are arranged adjacent to one another, said wall parts having a width b 1 , measured in a direction parallel to the mounting layer, and having a height h 1 , measured in a direction at a right angle to the mounting layer, where h 1 >b 1 , wherein the single- or multiple-part wall parts a) delimit a plurality of cavities which are open towards the mounting layer or towards the holding layer or b) delimit, together with the mounting layer and the holding layer, an open-ended channel.

2 . A flange plate for a manifold of an exhaust-gas system for internal combustion engines, comprising: the flange plate which can be fixed via a holding device to an exhaust-gas outlet connecting piece of the internal combustion engine by a first outer layer, formed as a mounting layer, which can be placed at least partially directly or indirectly against the exhaust-gas outlet connecting piece via a seal, said flange plate being applicable to the holding means by a second outer layer, formed as a holding layer, in order to generate a holding force F, acting at a right angle to the mounting layer ( 1 . 1 ), for sealingly placing the mounting layer against the exhaust-gas outlet connecting piece, said flange plate having at least a first intermediate layer which is arranged between the mounting layer and the holding layer in order to transmit the holding force F, wherein the first intermediate layer is made of metal foam.

3 . The flange plate according to claim 1 , wherein a further intermediate layer is provided, said intermediate layer being formed as a cavity structure and having the single- or multiple-part wall which extends in a direction parallel to the mounting layer.

4 . The flange plate according to claim 2 , wherein a further intermediate layer is provided, said intermediate layer being made of metal foam.

5 . The flange plate according to claim 3 , wherein a separating layer is provided between the first intermediate layer and a further intermediate layer, wherein the separating layer is made of sheet metal or ceramics.

6 . The flange plate according to claim 1 , wherein the following applies to the ratio of h 1 to b 1 :h 1 ≧xb 1 , with 1.5≦≦f max , with f max ≦2000.

7 . The flange plate according to claim 3 , wherein a wall of the further intermediate layer has a height h 4 and a width b 4 , wherein the following applies to the ratio of the height h 4 to the width b 4 :h 4 ≧xb 4 , with 1.5≦X≦f max , with f max ≦2000.

8 . The flange plate according to claim 7 , wherein the height h 4 of the further intermediate layer is greater than the height h 1 of the first intermediate layer, or the ratio of h 1 to b 1 of the first intermediate layer is less than the ratio of h 4 to b 4 of the further intermediate layer.

9 . The flange plate according to claim 1 , further including at least one intermediate layer which is made of metal foam.

10 . The flange plate according to claim 2 , wherein at least one intermediate layer is provided which is formed as a cavity structure and having a single- or multi-part wall which extends in a direction parallel to the mounting layer.

11 . A system consisting of a manifold or an exhaust-gas system for internal combustion engines with a flange plate according to claim 1 .

12 . The system according to claim 11 , wherein the manifold is mechanically coupled with the mounting layer.

13 . The flange plate according to claim 4 , wherein a separating layer is provided between the first intermediate layer and the further intermediate layer, wherein the separating layer is made of sheet metal or ceramics.

14 . The flange plate according to claim 13 , wherein the following applies to the ratio of h 1 to b 1 :h 1 ≧xb 1 , with 1.5≦X≦f x , with f max ≦2000.

15 . The flange plate according to claim 14 , wherein a wall of the further intermediate layer has a height h 4 and a width b 4 , wherein the following applies to the ratio of the height h 4 to the width b 4 :h 4 ≧xb 4 , with 1.5≦X≦f max , with f max ≦2000.

16 . The flange plate according to claim 15 , wherein the height h 4 of the further intermediate layer is greater than the height h 1 of the first intermediate layer, or the ratio of h 1 to b 1 of the first intermediate layer is less than the ratio of h 4 to b 4 of the further intermediate layer.

17 . The flange plate according to claim 16 , further including at least one intermediate layer which is made of metal foam.

18 . The flange plate according to claim 4 , wherein at least one intermediate layer is provided which is formed as a cavity structure and having a single- or multi-part wall which extends in a direction parallel to the mounting layer.

19 . A system consisting of a manifold or an exhaust-gas system for internal combustion engines with a flange plate according to claim 2 .

20 . The system according to claim 19 , wherein the manifold is mechanically coupled with the mounting layer.

Assignees

• Tenneco Gmbh

Inventors

• Weidner Michael
• Steigert Andreas
• Fuhrmann Bernd
• Engel Rolf
• Lehmann Adrien

Classifications

• F01N2340/00

  Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the exhaust apparatus; Spatial arrangements of exhaust apparatuses · CPC title

• F01N13/1827 Primary

  Sealings specially adapted for exhaust systems (sealings in general F16J15/00) · CPC title

• F16L23/162

  the pipe ends abutting each other · CPC title

• F01N13/1805

  Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body (pipe joints in general F16L; fixing auxiliaries in motor vehicles in general B60K) · CPC title

• F01N13/10

  of exhaust manifolds {(with cooling jacket F01N3/046)} · CPC title