CN216198413U

CN216198413U - Arrangement structure of heavy truck tail gas exhaust pipeline

Info

Publication number: CN216198413U
Application number: CN202122547927.5U
Authority: CN
Inventors: 张祎春; 肖乐; 孙振威; 单学明; 许耘畅
Original assignee: SAIC Hongyan Automotive Co Ltd
Current assignee: SAIC Hongyan Automotive Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-05
Anticipated expiration: 2031-10-22

Abstract

The utility model provides an arrangement structure of a heavy truck tail gas exhaust pipeline, which comprises an engine and a tail gas post-treatment device, and is characterized in that: the device also comprises a tail gas exhaust pipeline, wherein the tail gas exhaust pipeline comprises an exhaust main pipe, a first branch pipe, a second branch pipe, a first exhaust manifold, a second exhaust manifold and a spark arrester; the air inlet end of the exhaust main pipe is connected with the exhaust port of the tail gas post-treatment device, and the air outlet end of the exhaust main pipe is connected with the main pipe of the first exhaust manifold; the air inlet end of the first branch pipe and the air inlet end of the second branch pipe are respectively connected with the two branch pipes of the first exhaust manifold, and the air outlet end of the first branch pipe and the air outlet end of the second branch pipe are respectively connected with the two branch pipes of the second exhaust manifold; the spark arrester is connected to a main pipe of the second exhaust manifold. By adopting the arrangement structure of the utility model, the arrangement is flexible and the occupied space is small under the condition of ensuring the air displacement.

Description

Arrangement structure of heavy truck tail gas exhaust pipeline

Technical Field

The utility model relates to the technical field of automobile manufacturing, in particular to an arrangement structure of a heavy truck tail gas exhaust pipeline.

Background

In the prior art, due to special requirements of part of special transportation vehicles, an air outlet of a vehicle exhaust system is usually arranged at the foremost end of the vehicle, for example, an existing tail gas after-treatment device (ATS box) of a six-vehicle type in China is usually arranged in the middle of the vehicle (a vehicle type in an 8X4 driving mode is arranged behind a 2 nd axle of the vehicle), but an air outlet is arranged at the front end of the vehicle, so that a long pipeline is needed to guide waste gas treated by the tail gas after-treatment device to the foremost end of the vehicle, and due to the long pipeline, in order to guarantee the pipeline flow requirement, so as to meet the requirements of exhaust power and exhaust volume, an exhaust pipe with a large pipe diameter is needed. However, the exhaust pipe with a large pipe diameter not only occupies the bottom space of the frame, but also has a high temperature, and needs to keep a large distance from peripheral parts, so that the occupied space of the exhaust pipe is further increased, and the arrangement difficulty is improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides an arrangement structure of a heavy truck tail gas exhaust pipeline, aiming at solving the problems of large occupied space and difficult arrangement of the tail gas exhaust pipeline with a front exhaust port in the prior art.

The purpose of the utility model is realized by the technical scheme, which comprises the following steps:

the utility model provides an arrangement structure of heavy truck tail gas exhaust pipe, includes engine and tail gas aftertreatment device, the engine sets up at the vehicle front portion, tail gas aftertreatment device sets up in the vehicle middle part, and its innovation point lies in: the vehicle frame is characterized by further comprising an exhaust gas exhaust pipeline, wherein the exhaust gas exhaust pipeline is arranged below the vehicle frame and comprises an exhaust main pipe, a first branch pipe, a second branch pipe, a first exhaust manifold, a second exhaust manifold and a spark arrester; the first exhaust manifold comprises a main pipe and two branch pipes, and the second exhaust manifold comprises a main pipe and two branch pipes; the air inlet end of the exhaust main pipe is connected with the exhaust port of the tail gas post-treatment device, and the air outlet end of the exhaust main pipe is connected with the main pipe of the first exhaust manifold; the air inlet end of the first branch pipe and the air inlet end of the second branch pipe are respectively connected with the two branch pipes of the first exhaust manifold, and the air outlet end of the first branch pipe and the air outlet end of the second branch pipe are respectively connected with the two branch pipes of the second exhaust manifold; the spark arrester is connected with a main pipe of the second exhaust manifold; the spark arrester is arranged at the front lower part of the engine, the first branch pipe is encircled from the left side of the engine, the second branch pipe is encircled from the right side of the engine, and the exhaust main pipe is arranged at the rear part of the engine.

Preferably, the tail gas exhaust pipeline is fixedly connected with the frame through a plurality of brackets.

Preferably, compensators are arranged in the middle of the main exhaust pipe, the middle of the first branch pipe and the middle of the second branch pipe.

Due to the adoption of the technical scheme, the utility model has the following advantages: because under the engine with very limited arrangement space, two branch pipes are adopted to respectively surround from the left side and the right side of the engine, the total discharge capacity of the exhaust pipe is ensured, the diameter of a single branch pipe can be reduced, flexible arrangement is facilitated (the bending radius of the pipe with smaller diameter is smaller), meanwhile, the occupied space of the pipe with smaller pipe diameter is smaller, and the convenience of installation and adjustment of the pipeline is greatly improved.

Drawings

The drawings of the present invention are described below.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of an exhaust gas exhaust pipeline.

In the figure: 1. An engine; 2. an exhaust gas post-treatment device; 3. a main exhaust pipe; 4. a first branch pipe; 5. a second branch pipe; 6. a first exhaust manifold; 7. a second exhaust manifold; 8. a spark arrester.

Detailed Description

The utility model is further illustrated by the following figures and examples.

The arrangement structure of the heavy truck tail gas exhaust pipeline shown in the attached drawing 1 comprises an engine 1 and a tail gas after-treatment device 2, wherein the engine 1 is arranged at the front part of a vehicle, the tail gas after-treatment device 2 is arranged in the middle part of the vehicle, and the arrangement structure further comprises a tail gas exhaust pipeline which is arranged below a frame and is fixedly connected with the frame through a plurality of brackets; as shown in fig. 2, the exhaust gas discharge pipeline comprises an exhaust main pipe 3, a first branch pipe 4, a second branch pipe 5, a first exhaust manifold 6, a second exhaust manifold 7 and a spark arrester 8; the first exhaust manifold 6 comprises a main pipe and two branch pipes, and the second exhaust manifold 7 comprises a main pipe and two branch pipes; the air inlet end of the exhaust main pipe 3 is connected with the exhaust port of the exhaust gas post-treatment device 2, and the air outlet end of the exhaust main pipe 3 is connected with the main pipe of the first exhaust manifold 6; the air inlet end of the first branch pipe 4 and the air inlet end of the second branch pipe 5 are respectively connected with two branch pipes of the first exhaust manifold 6, and the air outlet end of the first branch pipe 4 and the air outlet end of the second branch pipe 5 are respectively connected with two branch pipes of the second exhaust manifold 7; the spark arrester 8 is connected to a main pipe of the second exhaust manifold 7; the spark arrester 8 is arranged at the front lower part of the engine 1, the first branch pipe 4 is encircled from the left side of the engine 1, the second branch pipe 5 is encircled from the right side of the engine 1, and the exhaust main pipe 3 is arranged at the rear of the engine 1.

In order to facilitate installation and adjustment, compensators are arranged in the middle of the main exhaust pipe 3, the first branch pipe 4 and the second branch pipe 5.

Claims

1. The utility model provides an arrangement structure of heavy truck tail gas exhaust pipe, includes engine (1) and tail gas aftertreatment device (2), engine (1) sets up at the vehicle front portion, tail gas aftertreatment device (2) set up in the vehicle middle part, its characterized in that: the vehicle frame is characterized by further comprising a tail gas exhaust pipeline, wherein the tail gas exhaust pipeline is arranged below the vehicle frame and comprises an exhaust main pipe (3), a first branch pipe (4), a second branch pipe (5), a first exhaust manifold (6), a second exhaust manifold (7) and a spark arrester (8); the first exhaust manifold (6) comprises a main pipe and two branch pipes, and the second exhaust manifold (7) comprises a main pipe and two branch pipes; the air inlet end of the exhaust main pipe (3) is connected with the exhaust port of the tail gas aftertreatment device (2), and the air outlet end of the exhaust main pipe (3) is connected with the main pipe of the first exhaust manifold (6); the air inlet end of the first branch pipe (4) and the air inlet end of the second branch pipe (5) are respectively connected with two branch pipes of the first exhaust manifold (6), and the air outlet end of the first branch pipe (4) and the air outlet end of the second branch pipe (5) are respectively connected with two branch pipes of the second exhaust manifold (7); the spark arrester (8) is connected with a main pipe of the second exhaust manifold (7); the spark arrester (8) is arranged in the front lower portion of the engine (1), the first branch pipe (4) is encircled from the left side of the engine (1), the second branch pipe (5) is encircled from the right side of the engine (1), and the exhaust main pipe (3) is arranged behind the engine (1).

2. The arrangement structure of the exhaust duct of heavy truck according to claim 1, characterized in that: the tail gas exhaust pipeline is fixedly connected with the frame through a plurality of brackets.

3. The arrangement structure of the exhaust gas duct of the heavy truck according to claim 1 or 2, characterized in that: compensators are arranged in the middle of the main exhaust pipe (3), the middle of the first branch pipe (4) and the middle of the second branch pipe (5).