CN215890267U

CN215890267U - Manifold structure

Info

Publication number: CN215890267U
Application number: CN202122406901.9U
Authority: CN
Inventors: 李伟; 钱懿; 周旸; 钱智; 顾嘉豪
Original assignee: Changshu Entech Plastic Auto Parts Co ltd
Current assignee: Changshu Entech Plastic Auto Parts Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-02-22
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a manifold structure, which comprises a first manifold body, a second manifold body and a intercooler, wherein the first manifold body is arranged on the second manifold body, the second manifold body is provided with a first inlet and a second inlet, the first inlet is used for being communicated with the intercooler, and the second inlet is used for being communicated with a carbon tank; a gas circulation cavity is formed inside the first manifold body and the second manifold body, a first supporting part is arranged in the first manifold body, a second supporting part is arranged in the second manifold body, and the first supporting part extends from the upper part of the first manifold body to the inside of the circulation cavity to be matched with the upper part of the second supporting part; the second supporting part extends from the bottom of the second manifold body to the circulation cavity to be matched with the lower part of the first supporting part. The manifold structure provided by the utility model reduces the air inlet temperature and improves the air exchange efficiency; the manifold is supported by the first support part and the second support part, so that the welding part is prevented from being broken due to high pressure; the volume of the circulation cavity is enlarged, the air input is increased, and the working efficiency is improved.

Description

Manifold structure

Technical Field

The utility model relates to the field of intake manifolds, in particular to a manifold structure.

Background

Nowadays, with the rapid development of economy, the living standard of people is greatly improved, and automobiles become a very important vehicle in daily life of people. The automobile engine is one of the most important parts of the automobile, and the intake manifold is an indispensable part of the engine.

The existing intake manifold comprises an upper manifold body and a lower manifold body positioned below the upper manifold body, wherein a circulation cavity is formed in the upper manifold body and the lower manifold body after the upper manifold body and the lower manifold body are welded, and an inlet directly communicated with a throttle valve is formed in a first manifold body. The air throttle is a controllable valve for controlling air to enter the engine, and the air can be mixed with gasoline to become combustible mixed gas after entering the air inlet manifold, so that the combustible mixed gas is combusted to form work. The existing intake manifold is directly communicated with a throttle valve, so that the temperature entering the intake manifold cannot be reduced, and the ventilation efficiency is influenced; in addition, when the existing intake manifold is used, the emission and the energy consumption of the engine are high; the maximum volume of the existing circulation cavity is 1.2L, and the volume of the circulation cavity can not be enlarged to improve the air inflow.

Disclosure of Invention

The utility model aims to provide a manifold structure to solve the problems of small volume and high intake temperature of the conventional intake manifold.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a manifold structure comprises a first manifold body, a second manifold body and a intercooler, wherein the first manifold body is connected to the second manifold body, a first inlet and a second inlet are formed in the second manifold body, the first inlet is used for being communicated with the intercooler, and the second inlet is used for being communicated with a carbon tank;

the gas circulation cavity is formed in the first manifold body and the second manifold body, a first supporting part is arranged in the first manifold body, a second supporting part is arranged in the second manifold body, and the first supporting part extends from the upper part of the first manifold body to the inside of the circulation cavity to be matched with the upper part of the second supporting part; the second supporting part extends from the bottom of the second manifold body to the flow cavity to be matched with the lower part of the first supporting part.

Preferably, the first support part is formed by downwardly recessing an upper portion of the first manifold body.

Preferably, the second support part is formed by upwardly recessing the bottom of the second manifold body, and the second support part has a hollow space with an opening facing downwards and outwards.

Preferably, the first support part is gradually narrowed from the upper part of the first manifold body to the circulation chamber.

Preferably, the second support part is gradually widened from the circulation chamber to the bottom of the second manifold body.

Preferably, the first supporting part and the second supporting part are fixed by welding.

Preferably, the first inlet and the second inlet are provided with pipe joints, and the pipe joints extend out of the surface of the second manifold body.

Preferably, said first inlet and said second inlet are located on opposite sides of said second manifold body.

Preferably, the volume of the circulation cavity is 1-6L.

Preferably, a plurality of air passage openings are formed in the first manifold body, and the air passage openings are used for being communicated with an engine cylinder cover; and a sealing ring is arranged on the air passage opening.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the manifold structure provided by the utility model can be directly communicated with an intercooler, so that the air inlet temperature of the air inlet manifold is reduced, the air exchange efficiency is improved, and the heat load of an engine is reduced; the manifold is supported by the first support part and the second support part, so that the fracture of the manifold structure at the welding position due to overlarge pressure is prevented; the volume of the circulation cavity is enlarged by 4-5 times, the air inflow is increased, the power of the engine is further increased, and the working efficiency is improved.

Drawings

FIG. 1 is a front view of a manifold construction designed according to the present invention;

FIG. 2 is a top view of a manifold structure designed according to the present invention;

fig. 3 is a schematic sectional view in the direction of a-a in fig. 2.

In the above drawings: 1-a first manifold body, 11-an air channel opening, 12-a mounting hole, 13-a first sheet body, 14-a second sheet body, 2-a second manifold body, 21-a first inlet, 22-a second inlet, 23-a mounting opening, 3-a first supporting part and 4-a second supporting part.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The manifold structure shown in fig. 1 to 3 includes a first manifold body 1, a second manifold body 2 and a intercooler, the first manifold body 1 is disposed on the second manifold body 2, the first manifold body 1 and the second manifold body 2 both have an annular side surface and a bottom surface, the annular side surface and the bottom surface are perpendicular and connected to form a receiving space with an open top, the peripheral edges of the first manifold body 1 and the second manifold body 2 are fixed by welding, and a gas circulation cavity is formed inside the first manifold body 1 and the second manifold body 2 after they are connected.

A plurality of air passage openings 11 are formed in the first manifold body 1, and the air passage openings 11 are used for being communicated with an engine cylinder cover. The air port 11 is provided with a sealing ring to seal the air port 11 and the engine cylinder cover, for example, fig. 1 shows two air port 11, and the intake manifold is also called a two-cylinder intake manifold.

The second manifold body 2 is provided with a first inlet 21 and a second inlet 22, the first inlet 21 is used for being communicated with an intercooler, air cooled by the intercooler enters the first inlet 21 and respectively enters the two air channel openings 11, the air is injected into the combustion chamber to be combusted, the air inlet temperature of the air inlet manifold is reduced, the air exchange efficiency is improved, and the heat load of the engine is reduced.

The second inlet 22 is used for communicating with the carbon tank, after the engine is shut down, gasoline vapor and fresh air are mixed in the tank and stored in the activated carbon tank, after the engine is started, an electromagnetic valve arranged between the activated carbon tank and the intake manifold is opened, and the gasoline vapor in the activated carbon tank is brought into the cylinder by clean air under the action of the vacuum degree of the intake manifold to participate in combustion, so that not only is the emission reduced, but also the oil consumption is reduced.

The first inlet 21 and the second inlet 22 are provided with pipe joints, the pipe joints extend out of the surface of the second manifold body 2, the pipe joints are hollow round pipes and are in a welding type, a clamping sleeve type and a flaring type, and the pipe joints are used as connecting pieces which can be assembled and disassembled in a fluid passage and are convenient to connect an intercooler and a carbon tank.

As shown in fig. 1, the first inlet 21 and the second inlet 22 are respectively located at two opposite sides of the second manifold body 2, so that the intercooler and the carbon tank can be conveniently connected at different sides, and the installation is convenient. The pipe connection at the first inlet 21 is arranged in parallel with the pipe connection at the second inlet 22. The first inlet 21, the second inlet 22 and the air channel opening 11 are all on different sides, for example, the first inlet 21 is disposed on a first side of the second manifold body 2, the air channel opening 11 is disposed on a second side of the second manifold body 2, the second inlet 22 is disposed on a third side of the second manifold body 2, the first side is adjacent to the second side, the second side is adjacent to the third side, and the first side is opposite to the third side.

The first manifold body 1 comprises a first sheet body 13 and a second sheet body 14, an avoiding area is formed by one corner of the first sheet body 13 missing, the cross section of the second sheet body 14 is square, and the first sheet body 13 is close to a first inlet 21 compared with the second sheet body 14. When the number of the air channel openings 11 is two, the first sheet body 13 is provided with one air channel opening 11, and the second sheet body 14 is provided with one air channel opening 11. The edges of the two air channel openings 11 are provided with a plurality of mounting holes 12, and the manifold is fixedly connected with the engine cylinder cover by mounting fasteners in the mounting holes 12.

The part of the second manifold body 2 corresponding to the avoiding area of the first sheet body 13 also forms an avoiding area, so that other equipment can be conveniently installed. The second manifold body 2 is provided with a mounting port 23 for mounting a pressure sensor, and the mounting port 23 and the air port 11 can be located on the same side of the manifold structure.

When the first inlet 21 is formed in the second manifold body 2 and communicated with the intercooler, the inlet and the throttle valve are not required to be formed in the first manifold body 1 and communicated, the volume of the circulation cavity can be increased to 1-6L (5L is the best), and the circulation cavity is enlarged by 4-5 times compared with the original pressure stabilizing cavity so as to increase the air inflow, further increase the power of the engine and improve the working efficiency.

Because the pressure stabilizing cavity is increased in volume, the pressure in the inner cavity is higher, the air inlet manifold is supported through the supporting structure, the breakage of the welded part of the air inlet manifold due to overlarge pressure is prevented, and the separation of the first manifold body 1 and the second manifold body 2 is prevented.

The support structure is as follows: a first supporting part 3 is arranged in the first manifold body 1, a second supporting part 4 is arranged in the second manifold body 2, and the first supporting part 3 extends from the upper part of the first manifold body 1 to the circulation cavity to be matched with the upper part of the second supporting part 4; the second support part 4 extends from the bottom of the second manifold body 2 to the circulation chamber to be matched with the lower part of the first support part 3.

The first support part 3 is formed by recessing the upper part of the first manifold body 1 downward (close to the second manifold body 2), for example, the upper part of the first support part 3 is recessed downward into the flow-through cavity between the first sheet 13 and the second sheet 14.

The first supporting part 3 can be gradually narrowed from the upper part of the first manifold body 1 to the circulation cavity, so that the mold is conveniently demoulded, or the first supporting part 3 is in a column shape with uniform diameter.

The second supporting part 4 is formed by being recessed upwards (close to the first manifold body 1) from the bottom of the second manifold body 2, the second supporting part 4 is provided with a ring-shaped side surface and an upper part which are connected, the upper part of the second supporting part 4 is abutted against the lower part of the second supporting part 4, one end of the ring-shaped side surface is connected with the bottom of the second manifold body 2, the other end of the ring-shaped side surface extends into the circulating cavity, the ring-shaped side surface and the upper part form a hollow space, and the opening of the hollow space faces downwards and outwards. The second support portion 4 widens gradually from the flow-through cavity toward the bottom of the second manifold body 2, like a cone, facilitating the mold release.

The matching of the first support part 3 with the upper part of the second support part 4 means that the bottom of the first support part 3 is against the upper part of the second support part 4. The second support part 4 is matched with the lower part of the first support part 3, that is, the upper part of the second support part 4 is abutted against the lower part of the first support part 3.

First supporting part 3 passes through welded fastening with second supporting part 4, during the assembly, puts first manifold body 1 on a frock, and second manifold body 2 is put on another frock, and two gas ports 11 have the profile modeling piece to support, and rethread vibration friction welding mode is with first supporting part 3 and second supporting part 4 welded fastening, with first manifold body 1 and second manifold body 2 welded fastening all around simultaneously.

Or one of the first supporting part 3 and the second supporting part 4 is provided with a clamping groove, the other one is provided with a convex block capable of being inserted into the clamping groove, when the first manifold body 1 and the second manifold body 2 are assembled, the positioning is convenient, the first supporting part 3 and the second supporting part 4 are fixedly connected, and then the first manifold body 1 and the second manifold body 2 are fixedly welded at the periphery in a vibration friction welding mode.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A manifold structure is characterized by comprising a first manifold body, a second manifold body and a intercooler, wherein the first manifold body is arranged on the second manifold body, the second manifold body is provided with a first inlet and a second inlet, the first inlet is used for being communicated with the intercooler, and the second inlet is used for being communicated with a carbon tank;

2. The manifold structure as claimed in claim 1, wherein said first support portion is formed by recessing an upper portion of said first manifold body downward.

3. The manifold structure as claimed in claim 1 or 2, wherein said second supporting portion is formed by upwardly recessing a bottom portion of said second manifold body, said second supporting portion having a hollow space opened downwardly and outwardly.

4. The manifold structure as claimed in claim 1, wherein said first support portion is tapered from an upper portion of said first manifold body toward said flow-through chamber.

5. The manifold structure as claimed in claim 1, wherein said second support part is gradually widened from said flow-through chamber toward a bottom of said second manifold body.

6. The manifold structure as claimed in claim 1, wherein the first and second supporting portions are fixed by welding.

7. The manifold structure as defined in claim 1, wherein said first inlet port and said second inlet port are each provided with a pipe fitting, said pipe fitting extending beyond said second manifold body surface.

8. A manifold structure according to claim 1 or 7, wherein the first inlet and the second inlet are located on opposite sides of the second manifold body.

9. The manifold structure as claimed in claim 1, wherein said flow-through chamber has a volume of 1-6L.

10. The manifold structure as claimed in claim 1, wherein the first manifold body is provided with a plurality of air port openings, and the air port openings are used for being communicated with an engine cylinder cover; and a sealing ring is arranged on the air passage opening.