CN215979574U

CN215979574U - Exhaust manifold of engine

Info

Publication number: CN215979574U
Application number: CN202122007973.6U
Authority: CN
Inventors: 赖强敏
Original assignee: Ningbo New Huatai Plastics Electric Appliance Co ltd
Current assignee: Ningbo New Huatai Plastics Electric Appliance Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-03-08
Anticipated expiration: 2031-08-24

Abstract

The application discloses exhaust manifold of engine, including bleeder and collecting pipe, two liang of upper ends intercommunications that are a set of bleeder, the upper end level of bleeder is backward and fixedly connected with collecting pipe, the inside of collecting pipe seted up with the unanimous receipts of bleeder direction restraint the passageway, with a set of bleeder formula as an organic whole casting, the bleeder with the collecting pipe is made by stainless steel material. The pipeline part of the main body is replaced by stainless steel materials from the traditional nodular cast iron materials, so that the dead weight of the exhaust manifold is reduced, and meanwhile, the corrosion resistance of the pipeline is improved, and the service life of the exhaust manifold is prolonged; through optimizing the pipeline and arranging and the direction, reduced the pipeline to the resistance of exhaust gas air current, reduced the inside torrent's of pipeline production simultaneously, further reduced exhaust gas exhaust's resistance, promoted exhaust gas exhaust smooth and easy degree to reduce the loss of engine dynamic energy.

Description

Exhaust manifold of engine

Technical Field

The application relates to the technical field of engine accessories, in particular to an exhaust manifold of an engine.

Background

At present, the selection principle of the exhaust manifold of the engine is generally that the exhaust manifold can be configured as long as the power of the engine can be used and is not seriously slowed down.

However, the exhaust manifold of the conventional engine has the following disadvantages: for example, on the one hand, the structure of the exhaust manifold does not make the best use of the installation space or takes up too much cabin space; on the other hand, the nodular cast iron material adopted by the exhaust manifold makes the weight of the whole engine unit larger. In order to solve the above problems, a new type of exhaust manifold for an engine is proposed.

Disclosure of Invention

The purpose of the present application is to improve the uniformity of the flow of an exhaust manifold and reduce the weight of the exhaust manifold.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: this exhaust manifold of engine, including bleeder and collecting pipe, constitute the pipeline structure of exhaust manifold, two liang of upper ends intercommunications of bleeder are a set of, avoid the carminative bleeder of adjacent cycle to influence the degree each other too big, the upper end level of bleeder is backward and fixedly connected with gas collecting pipe, gas collecting pipe's inside seted up with the unanimous receipts of bleeder direction are restrainted for the air current in each bleeder is received and is restrainted.

The same group of the branch pipes are cast in an integrated manner, the branch pipes and the gas collecting pipes are made of stainless steel materials, common nodular cast iron materials in the prior art are replaced, and the effects of reducing self weight and prolonging service life are achieved.

Preferably, the lower end of the branch pipe is fixedly connected with an air inlet flange, and the air inlet flange is welded with the branch pipe to reduce the manufacturing difficulty.

Preferably, an exhaust gas inlet hole penetrating the branch pipe is formed in a lower surface of the intake flange, and exhaust gas from the engine enters an inlet of an exhaust system.

Preferably, the lower surface edge of the air inlet flange is provided with a clamping groove, so that the exhaust manifold and the engine can be conveniently assembled, and the air inlet flange is provided with bolt connecting holes which are vertically communicated at four corners and used for realizing the installation and fixation of the exhaust manifold on the engine.

Preferably, the gas collecting pipe is fixedly connected with a tail partition plate at a position close to the front end face on the inner wall, so that the sealing effect of the connection between the branch pipes and the gas collecting pipe is achieved, and the gas collecting pipe is communicated with the inside of each branch pipe.

Preferably, the rear end face of the gas collecting pipe is fixedly connected with an exhaust flange, and the exhaust flange and the gas collecting pipe are cast integrally, so that the complexity of manufacturing the exhaust manifold is reduced.

Preferably, the exhaust flange is provided with a plurality of bolt connection holes penetrating in the front and rear direction for fixedly connecting the exhaust manifold and the exhaust pipe.

Compared with the prior art, the beneficial effect of this application lies in:

(1) the self-weight of the exhaust manifold is reduced and the corrosion resistance of the pipeline is improved by replacing the pipeline part of the main body with stainless steel materials from the traditional nodular cast iron materials, so that the service life of the exhaust manifold is prolonged;

(2) through optimizing the pipeline and arranging and the direction, reduced the pipeline to the resistance of exhaust gas air current, reduced the inside torrent's of pipeline production simultaneously, further reduced exhaust gas exhaust's resistance, promoted exhaust gas exhaust smooth and easy degree to reduce the loss of engine dynamic energy.

Drawings

FIG. 1 is a first view of the overall structure of the exhaust manifold of the engine;

FIG. 2 is a second view of the overall structure of the exhaust manifold of the engine;

FIG. 3 is a perspective view of a manifold assembly of the exhaust manifold of the engine;

FIG. 4 is an elevation view of a header assembly of the exhaust manifold of the engine;

fig. 5 is a sectional view taken at a-a of an exhaust manifold of the engine in fig. 4.

In the figure: 1. an air inlet flange; 2. a branch pipe; 3. a gas collecting pipe; 4. an exhaust gas inlet hole; 5. a clamping groove; 6. an exhaust flange; 7. a tail separator plate; 8. connecting holes of bolts; 9. and (4) converging the channel.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The exhaust manifold of the engine shown in fig. 1 to 5 comprises branch pipes 2 and a gas collecting pipe 3, wherein the branch pipes 2 are connected in pairs to form a group of upper ends, the upper ends of the branch pipes 2 are horizontally backward and fixedly connected with the gas collecting pipe 3, and a beam collecting channel 9 with the same direction as the branch pipes 2 is arranged in the gas collecting pipe 3.

The lower extreme fixedly connected with air intake flange 1 of bleeder 2, the welding between air intake flange 1 and bleeder 2, the waste gas manhole 4 that link up with bleeder 2 is seted up to air intake flange 1's lower surface, and joint groove 5 has been seted up to air intake flange 1's lower surface edge, and air intake flange 1 has seted up bolted connection hole 8 that link up from top to bottom in four corners.

The gas collecting pipe 3 is fixedly connected with a tail division plate 7 at the inner wall and close to the front end face, the gas collecting pipe 3 is communicated with the inside of each branch pipe 2, the rear end face of the gas collecting pipe 3 is fixedly connected with an exhaust flange 6, the exhaust flange 6 and the gas collecting pipe 3 are cast in an integrated mode, and a plurality of bolt connecting holes 8 which are communicated from front to back are formed in the exhaust flange 6.

The branch pipes 2 in the same group are cast integrally, and the branch pipes 2 and the gas collecting pipes 3 are made of stainless steel materials.

The structural principle of the exhaust manifold of the engine is as follows: because the tail end of the two adjacent branch pipes 2 is communicated, the exhaust strokes of the two adjacent cylinders are further separated in the working cycle, the exhaust conflict of the two adjacent branch pipes 2 is smaller, and the converging channel 9 arranged in the gas collecting pipe 3 is consistent with the direction of the airflow in the branch pipes 2, so that the possibility of turbulent flow generated by the airflow entering the gas collecting pipe 3 from the branch pipes 2 is greatly reduced, the exhaust resistance can be further reduced without airflow obstruction in the opposite direction, and the flow speed uniformity and the exhaust smoothness are improved; on the other hand, due to the smooth curvature design of the pipeline, the arrangement of the pipeline can more fully utilize the installation space on the premise of not increasing the airflow resistance, and the stainless steel material is additionally used for replacing the traditional nodular cast iron, so that the dead weight of the engine unit is reduced, and the work doing efficiency of the engine is improved.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. An exhaust manifold of an engine, comprising a branch pipe and a collector pipe, characterized in that:

the upper ends of the branch pipes are communicated in pairs, the upper ends of the branch pipes are horizontally backwards and fixedly connected with a gas collecting pipe, and a beam collecting channel in the same direction as the branch pipes is arranged in the gas collecting pipe;

the branched pipes in the same group are integrally cast, and the branched pipes and the gas collecting pipe are made of stainless steel materials.

2. An exhaust manifold for an engine as recited in claim 1 wherein: the lower end of the branch pipe is fixedly connected with an air inlet flange, and the air inlet flange is welded with the branch pipe.

3. An exhaust manifold for an engine as recited in claim 2 wherein: and the lower surface of the air inlet flange is provided with an exhaust gas inlet hole communicated with the branch pipe.

4. An exhaust manifold for an engine as recited in claim 3 wherein: the lower surface edge of the air inlet flange is provided with a clamping groove, and the air inlet flange is provided with bolt connecting holes which are communicated up and down at four corners.

5. An exhaust manifold for an engine as recited in claim 1 wherein: the gas collecting pipe is fixedly connected with a tail division plate at the position, close to the front end face, of the inner wall, and the gas collecting pipe is communicated with the insides of the branch pipes.

6. An exhaust manifold for an engine as recited in claim 5 wherein: the rear end face of the gas collecting pipe is fixedly connected with an exhaust flange, and the exhaust flange and the gas collecting pipe are integrally cast.

7. An exhaust manifold for an engine as recited in claim 6 wherein: the exhaust flange is provided with a plurality of bolt connecting holes which are communicated from front to back.