Multi-point injection intake pipe for a gas engine

Abstract

The utility model is suitable for internal combustion engine gas supply mechanism technical field provides a kind of multi-point injection air intake pipe of gas machine, comprising: main pipeline, its one side is equipped with air inlet, the other side of main pipeline is equipped with several air intake manifold, each air intake manifold is equipped with air jet nozzle, the flow direction of the gas in the inside of air jet nozzle and air intake manifold has certain angle, air intake manifold and main pipeline use integrated structure, by this, the utility model is guaranteed by setting integrated air intake structure, the reliability of air intake, while setting a kind of separate air jet structure, to ensure the separate control to engine, optimization control effect.

Description

Technical Field

[0001] This utility model relates to the technical field of internal combustion engine gas supply mechanism, and in particular to a multi-point injection intake pipe for a gas engine. Background Technology

[0002] The existing intake manifold structure for natural gas engines is as follows: natural gas injected by a single-point injection valve is mixed with air through a mixer before entering the intake manifold, and then enters the cylinder through the intake manifold. This intake structure has the following problems:

[0003] 1. When the intake and exhaust valves are open simultaneously, if the afterburning period in the cylinder is long, it is easy to ignite the mixture in the intake manifold, leading to the intake manifold bursting.

[0004] 2. Because natural gas needs to pass through a mixer, intake manifold, and intake pipe before entering the cylinder, the engine's dynamic response is relatively slow.

[0005] 3. Because the intake structure for the air-fuel mixture entering each cylinder is not exactly the same, the air-fuel mixture entering each cylinder is also uneven, resulting in poor consistency in the operation of each cylinder and unstable engine operation.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] To address the aforementioned deficiencies, the purpose of this utility model is to provide a multi-point injection intake pipe for a gas engine. This pipe can ensure the reliability of the intake by setting an integrally molded intake structure, and at the same time, it can ensure individual control of the engine by setting a separate injection structure, thereby optimizing the control effect.

[0008] To achieve the above objectives, this utility model provides a multi-point injection air inlet pipe for a gas engine, comprising:

[0009] The main pipeline has an air inlet on one side and several intake manifolds on the other side. Each intake manifold is equipped with a nozzle, and the nozzle is at a certain angle to the flow direction of the gas inside the intake manifold.

[0010] In one embodiment, the intake manifold and the main pipeline are integrally formed.

[0011] In one embodiment, the jet nozzle is disposed on the intake manifold, and the intake direction of the jet nozzle is perpendicular to the airflow direction of the intake manifold.

[0012] In one embodiment, the jet nozzle is integrally formed with the intake manifold, and the air intake is located directly opposite the main pipeline.

[0013] In one embodiment, the jet nozzle is mounted to the intake manifold via a mounting base, which is rotatably connected to the intake manifold.

[0014] In one embodiment, the outer part of the mounting base is a spherical head, and the intake manifold is provided with a spherical groove corresponding to the spherical head.

[0015] In one embodiment, a gap seal is used between the spherical groove and the spherical head, and the spherical head is provided with a mounting hole that penetrates the intake manifold.

[0016] In one embodiment, the jet nozzle is installed inside the mounting hole, and a control element for controlling the angle of the spherical head is fixedly connected to the main pipeline. The control element controls the angle of the spherical head, thereby controlling the jet direction of the jet nozzle.

[0017] This utility model provides a multi-point injection intake pipe for a gas engine, comprising: a main pipeline with an intake port on one side, through which external gas enters the main pipeline, facilitating subsequent gas supply to the intake manifold via the main pipeline and ensuring uniform gas supply; a plurality of intake manifolds on the other side of the main pipeline, the number of intake manifolds matching the gas volume of the gas engine, ensuring gas supply to each cylinder through the intake manifolds, thereby ensuring reliable cylinder control; and each intake manifold is equipped with an injection nozzle, ensuring that the intake volume of each cylinder can be controlled through the individual injection nozzles during gas engine operation, thereby achieving consistent control of each cylinder. The jet nozzle and the gas flow direction inside the intake manifold are at a certain angle. This angle ensures that the jet direction mixes with the intake direction, thereby ensuring that the gas in the intake manifold can be fully mixed with the combustion gas. This effectively controls the combustion efficiency of the gas engine and the consistency of cylinder work. The intake manifold and the main pipeline adopt an integral molding structure. This integral molding structure reduces the sealing risk of the intake manifold installation and ensures the reliability of the intake system. In summary, the technical effect of this utility model is to ensure the reliability of the intake by setting an integral molding intake structure, and at the same time, to set a separate jet structure to ensure individual control of the engine and optimize the control effect. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of one side of the intake manifold of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of one side of the air inlet of this utility model;

[0020] Figure 3This is a cross-sectional structural diagram of the first embodiment of this utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of the second embodiment of this utility model;

[0022] In the diagram, 1-main pipeline, 2-air inlet, 3-intake manifold, 4-jet nozzle, 5-air space, 6-mixing space, 7-mounting hole, 8-mounting base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] See Figure 1 , Figure 2 and Figure 3In one embodiment of this utility model, the multi-point injection intake pipe of the gas engine includes a main pipeline 1, with an intake port 2 on one side. External gas enters the main pipeline 1 through the intake port 2, facilitating the subsequent supply of gas to the intake manifold 3 via the main pipeline 1, ensuring uniform gas supply. A plurality of intake manifolds 3 are provided on the other side of the main pipeline 1, the number of which matches the gas volume of the gas engine. This ensures that gas can be supplied to each cylinder through the intake manifolds 3, thereby guaranteeing reliable cylinder control. Each intake manifold 3 is equipped with a nozzle 4. By individually setting the nozzle 4, the gas... When the engine is in use, the intake volume of each cylinder can be controlled through the jet nozzle 4, thereby achieving consistent control of each cylinder. The jet nozzle 4 and the gas flow direction inside the intake manifold 3 have a certain angle. By setting this angle, it can be ensured that the direction of jetting is mixed with the direction of intake, thereby ensuring that the gas in the intake manifold 3 can be fully mixed with the gas, thus ensuring effective control of the combustion efficiency of the gas engine and the consistency of cylinder work. The intake manifold 3 and the main pipeline 1 adopt an integral molding structure. Through the integral molding structure, the sealing risk of the intake manifold 3 installation is reduced, ensuring the reliability of the intake system.

[0027] The intake manifold 3 and the main pipeline 1 can be manufactured by integral mold casting. In order to ensure the internal gas flow, a certain air space 5 can be set inside the main pipeline 1. At the same time, a mixing space 6 is set inside the intake manifold. The gas entering the nozzle 4 can be mixed with the air inside the mixing space 6, and then enter the cylinder after mixing, ensuring the consistency of the mixed gas inside the cylinder.

[0028] Preferably, in order to ensure that the jet nozzle 4 supplies gas to the inside of the intake manifold 3, the jet nozzle 4 is set on the intake manifold 3, and the air intake direction of the jet nozzle 4 is perpendicular to the airflow direction of the intake manifold 3. By setting the angle perpendicularly, it can be ensured that the gas ejected by the jet nozzle 4 has a certain impact interference with the direction of airflow, thereby ensuring better mixing of air and fuel gas and optimizing the mixing effect of the gas in the jet nozzle 4 and the air inside the intake manifold 3.

[0029] In addition, the jet nozzle 4 is integrally formed with the intake manifold 3, and the air inlet 2 is located directly opposite the main pipeline 1. This ensures that after the air inlet 2 enters the interior of the main pipeline 1, it can enter the interior of the intake manifold 3 through the main pipeline 1. This ensures that the amount of gas entering the intake manifold 3 can be as uniform as possible, thereby ensuring the consistency of the gas entering the cylinder.

[0030] In this embodiment, the main pipeline 1 and the intake manifold 3 are integrally formed during use. The intake port 2 can be directly connected to the machine's intake pipe, while the intake manifold 3 on the main pipeline 1 is connected to the gas engine. This ensures that the gas entering the intake manifold 3 can be individually controlled, thereby effectively controlling the gas entering individually and optimizing the consistency of the intake.

[0031] In another embodiment, combined Figure 1 , Figure 2 and Figure 4 To ensure the mixing effect of the intake air, the nozzle 4 can be designed with an adjustable angle. The nozzle 4 is installed on the intake manifold 3 via a mounting base 8. The mounting base 8 is rotatably connected to the intake manifold 3, thus ensuring that the angle of the nozzle 4 can be adjusted by adjusting the angle of the mounting base 8. The outer part of the mounting base 8 is a spherical head, and the intake manifold 3 has a spherical groove corresponding to the spherical head, which facilitates angle adjustment of the mounting base 8 within the spherical groove. A gap seal is used between the spherical groove and the spherical head to ensure that the gas inside the intake manifold 3 does not leak from the gap between the spherical head and the spherical groove, thus affecting the intake state. The spherical head has a mounting hole 7 that penetrates the intake manifold 3, ensuring that the nozzle 4 can communicate with the inside of the intake manifold 3.

[0032] Furthermore, to ensure control over the angle of the spherical head, the nozzle 4 is installed inside the mounting hole 7. A control component for controlling the angle of the spherical head (existing technology, not described in detail) is fixedly connected to the main pipeline 1. The control component controls the angle of the spherical head, thereby controlling the spray direction of the nozzle 4. The control component can be a servo motor. To ensure control over the position of the mounting base 8, a servo motor can be installed on the intake manifold 3. The output shaft of the servo motor is connected to the mounting base 8. By rotating the servo motor, the tilt angle of the mounting base 8 is controlled, thereby controlling the spray direction of the nozzle 4.

[0033] In this embodiment, during use, the jet nozzle 4 is connected to the mounting base 8. This connection can be achieved by using threads or bolts, or by setting threads inside the mounting hole 7. By tightening the jet nozzle 4 into the mounting hole 7, the connection of the jet nozzle 4 is realized. At the same time, when it is necessary to adjust the angle of the mounting base 8, the servo motor can be directly controlled to rotate, thereby controlling the angle of the mounting base 8 and adjusting the jet direction of the jet nozzle 4.

[0034] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A multi-point injection air inlet pipe for a gas engine, characterized in that, include: The main pipeline has an air inlet on one side and several intake manifolds on the other side. Each intake manifold is equipped with a nozzle, and the nozzle is at a certain angle to the flow direction of the gas inside the intake manifold. The jet nozzle is mounted to the intake manifold via a mounting base, which is rotatably connected to the intake manifold. The outer part of the mounting base is a spherical head, and the intake manifold is provided with a spherical groove corresponding to the spherical head.

2. The multi-point injection air inlet pipe of the gas engine according to claim 1, characterized in that, The intake manifold and the main pipeline are integrally formed.

3. The multi-point injection air inlet pipe of the gas engine according to claim 1, characterized in that, The jet nozzle is disposed on the intake manifold, and the intake direction of the jet nozzle is perpendicular to the airflow direction of the intake manifold.

4. The multi-point injection air inlet pipe for a gas engine according to claim 3, characterized in that, The jet nozzle is integrally formed with the intake manifold, and the air intake is located directly opposite the main pipeline.

5. The multi-point injection air inlet pipe of the gas engine according to claim 1, characterized in that, The spherical groove and the spherical head are sealed by a gap, and the spherical head is provided with a mounting hole that penetrates the intake manifold.

6. The multi-point injection air inlet pipe of the gas engine according to claim 5, characterized in that, The jet nozzle is installed inside the mounting hole, and a control component for controlling the angle of the spherical head is fixedly connected to the main pipeline. The control component controls the angle of the spherical head, thereby controlling the jet direction of the jet nozzle.

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