EXHAUST HOUSING

Abstract

The disclosure relates to a gas-carrying exhaust gas housing of an internal combustion engine comprising: a manifold section, having a central axis and multiple manifold pipe connectors, for securing on a flange plate for connecting to a cylinder of an internal combustion engine; a catalyst housing section having a central axis; and an exhaust pipe connector section provided downstream of the catalyst housing section, for connecting to an onward-conveying exhaust system. In addition, together with catalyst housing section and exhaust pipe connector section, the manifold section forms a two-shell exhaust housing having a first half shell and a second half shell, wherein the two half shells have a separation plane (T) running parallel to the central axis at least in sections, wherein the manifold section has multiple integral manifold pipe connectors which can be attached directly to a flange plate.

Claims

1. A gas-carrying exhaust gas housing of an internal combustion engine comprising: a manifold section, having a central axis and multiple manifold pipe connectors, for securing on a flange plate or connecting to a cylinder of an internal combustion engine; a catalyst housing section having a central axis; and an exhaust pipe connector section provided downstream of the catalyst housing section, for connecting to an onward-conveying exhaust system, wherein, together with catalyst housing section and exhaust pipe connector section, the manifold section forms a two-shell exhaust housing having a first half shell and a second half shell, wherein the two half shells have a separation plane T running parallel to the central axis at least in sections, wherein the manifold section has multiple integral manifold pipe connectors which can be attached directly to a flange plate, wherein the respective manifold pipe connector is configured as a rim hole inside the first half shell.

2. The gas-carrying exhaust gas housing according to claim 1, wherein the manifold section has a connection plane A for a flange plate, which is spanned by the manifold pipe connectors, wherein the manifold pipe connectors additionally span a connection plane K at the manifold section, and that the separation plane T is aligned parallel to the connection plane A and parallel to the connection plane K at least in the region of the manifold section.

3. The gas-carrying exhaust gas housing according to claim 2, wherein the respective manifold pipe connector is configured straight or cylindrically and/or the manifold pipe connectors are configured identically in terms of their form and size.

4. The gas-carrying exhaust gas housing according to claim 3, wherein manifold pipes are provided, which are to be secured as a separate component between the respective manifold pipe connector and the flange plate.

5. The gas-carrying exhaust gas housing according to claim 4, wherein the respective manifold pipe is configured cylindrically and/or the manifold pipes are configured identically in terms of their form and size.

6. The gas-carrying exhaust gas housing of claim 1, wherein the respective half shell has a connection edge, by means of which the two half shells can be firmly bonded or positively connected to one another, wherein the separation plane T which is spanned by means of the respective connection edge is configured in a curved manner at least in sections.

7. The gas-carrying exhaust gas housing according to claim 1, wherein he manifold section is located laterally offset from the catalyst housing section with respect to the central axis, wherein the central axis of the manifold section and the central axis of the catalyst housing section are aligned approximately parallel to one another.

8. The gas-carrying exhaust gas housing according to claim 1, wherein a two-shell external housing is provided, which is located at a distance from the exhaust housing, wherein an insulating air gap is provided between the external housing and the exhaust housing.

9. The gas-carrying exhaust gas housing according to claim 1 having a flange plate, which is secured in a gas-tight manner to the manifold pipe connectors or to the manifold pipes.

10. An exhaust system for a motor vehicle having a gas-carrying exhaust gas housing according to claim 1.

Description

DRAWINGS

[0024] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0025] Additional advantages and details of the disclosure are explained in the patent claims and in the description, and are illustrated in the figures, wherein:

[0026] FIG. 1 shows a schematic diagram of the exhaust housing in a view from above;

[0027] FIG. 2 shows a view from the front;

[0028] FIG. 3 shows a view in accordance with FIG. 1 as a further embodiment example;

[0029] FIG. 4 shows a schematic diagram of an exhaust system;

[0030] FIG. 5 shows a schematic diagram of a further embodiment example of the exhaust housing.

[0031] Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings.

DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0033] An exhaust housing 1 shown in FIG. 1 has a two-shell configuration and has a first half shell 1a and a second half shell 1b. The two assembled half shells 1a, 1b or the exhaust housing 1 form a manifold section 1.1 as well as a catalyst housing section 1.2 and an exhaust pipe connector section 1.3 attached thereto, which are manufactured as a single piece with respect to the respective half shell 1a, 1b. The upper half shell 1a, which is shown in accordance with FIG. 1, has, in the region of the manifold section 1.1, three manifold pipe connectors 1.4, 1.4, 1.4 which are configured inside the half shell 1a as a rim hole.

[0034] The two half shells 1a, 1b have a connection edge 2a, 2b which in turn spans a separation plane T.

[0035] The manifold section 1.1 has a central axis 1.5 and the catalyst housing section 1.2 has a central axis 1.6, which are aligned coaxially to one another according to FIG. 1.

[0036] The three manifold pipe connectors 1.4, 1.4, 1.4 or the ends thereof span a connection plane A and a connection plane K, which are aligned parallel to the separation plane T in the embodiment example in accordance with FIG. 1. A flange plate 3 is secured to the three manifold pipe connectors 1.4, 1.4, 1.4, which flange plate is aligned parallel to the connection plane A. The exhaust housing 1 is connected to a cylinder 7 of an internal combustion engine, which is not shown in more detail, by means of the flange plate 3.

[0037] Since the manifold pipe connectors 1.4, 1.4, 1.4 are configured straight or free of curvature, the connection plane K is aligned parallel to the connection plane A.

[0038] It can be seen in the view in accordance with FIG. 2 that the separation plane T, spanned by means of the respective connection edge 2a, 2b, is configured in a curved manner. Both housing halves 1a, 1b can also be configured as a folding shell.

[0039] In the embodiment example in accordance with FIG. 3, a manifold pipe 4, 4 is arranged on the respective manifold pipe connector 1.4, 1.4. This serves to bridge the distance between the manifold section 1.1 and the cylinder 7. The manifold pipes 4, 4, 4 are each configured cylindrically and all have the same form. The connection plane K is therefore also arranged parallel to the connection plane A. An adjustment of the architecture of the manifold pipe connectors 1.4, 1.4, 1.4 to the architecture of the cylinder 7 or the cylinder outlet, which is not shown in further detail, is not necessary.

[0040] FIG. 4 shows an exhaust system 5 having an exhaust housing 1 in the embodiment according to one of FIGS. 1 to 3. In addition to the exhaust housing 1, the exhaust system 5 has an additional converter or catalyst 5.1 as well as an exhaust gas silencer 5.2, which are connected via an exhaust pipe 5.3. The exhaust housing 1 is hereby configured in an air-gap insulated form and additionally has an external housing 6 which, together with the internal housing, delimits an air gap 6.1.

[0041] In accordance with the embodiment example in FIG. 5, the manifold section 1.1 and the catalyst housing section 1.2 are connected to one another by means of a U-pipe section 1.7, so that both sections are arranged laterally offset from one another with respect to the respective central axis 1.1, 1.2. The collective flow running along the central axis 1.5 inside the manifold section 1.1 is deflected by means of the U-pipe section 1.7 by 180 and consequently aligned in accordance with the central axis 1.6 of the catalyst housing section 1.2.

[0042] A slight angular deviation of up to approx. 3 is possible between the two central axes 1.5, 1.6. This can be seen on the basis of the manifold section 1.1 having the central axis 1.5, which is shown with the dashed line.

[0043] The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.