Intake manifold, vehicle engine, and vehicle thereof

Abstract

The application relates to an intake manifold, a vehicle engine and a vehicle thereof. The intake manifold comprises a lower die half and an upper die half. The lower die half is provided with a first gas outlet, a second gas outlet, a third gas outlet and a fourth gas outlet which are sequentially and spacedly arranged along a first direction. In the first direction, the lower die half is provided with a first flow blocking part between the first gas outlet and the second gas outlet, and a second flow blocking part between the third gas outlet and the fourth gas outlet. The upper die half is connected with the lower die half and forms an intake chamber together with the lower die half. The upper die half is provided with an intake port which is adjacent to the first gas outlet. The intake port is communicated with the first gas outlet, the second gas outlet, the third gas outlet and the fourth gas outlet through the intake chamber. The uniformity of the airflow distribution of the four gas outlets of the intake manifold is improved, and the stability of the vehicle engine during operation is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of engine intake, and in particular relates to an intake manifold, a vehicle engine and the vehicle thereof. Background Technology

[0002] The intake manifold is the core component of the engine's intake system. Its main function is to distribute the air drawn in from the outside (or the combustible mixture formed by mixing with fuel in the intake manifold) to each cylinder of the engine.

[0003] Existing intake manifolds integrate intercooler functions, typically placing the intake port on one side of the intake manifold. This results in low airflow resistance and sufficient intake volume at the outlets closer to the intake port, while the outlets further away experience poor intake due to the extended flow path and reduced airflow energy. This leads to uneven air intake across the engine cylinders, causing deviations in the air-fuel ratio of each cylinder and affecting the overall stability of the engine. Utility Model Content

[0004] In view of this, it is necessary to provide an intake manifold, a vehicle engine, and a vehicle thereof to solve the above-mentioned technical problems.

[0005] An intake manifold, the intake manifold comprising:

[0006] The lower mold lobe has at least a first air outlet, a second air outlet, a third air outlet, and a fourth air outlet arranged sequentially and at intervals along a first direction; and, in the first direction, the inner wall of the lower mold lobe has a first baffle portion located between the first air outlet and the second air outlet, and the inner wall of the lower mold lobe has a second baffle portion located between the third air outlet and the fourth air outlet;

[0007] The upper mold lobe is connected to the lower mold lobe and forms an air intake chamber between the upper mold lobe and the lower mold lobe. An air intake port is provided on the upper mold lobe. The air intake port is located adjacent to the first air outlet and is connected to the first air outlet, the second air outlet, the third air outlet and the fourth air outlet through the air intake chamber.

[0008] It is understandable that baffles are provided between the first and second air outlets, and between the third and fourth air outlets of the lower manifold to block the flow of gas. Utilizing the characteristic that gas flows along the cavity wall of the intake chamber after entering through the intake port, the first baffle can block part of the airflow originally flowing towards the second air outlet from flowing towards the third air outlet, and the second baffle can block part of the airflow originally flowing towards the fourth air outlet from flowing towards the third air outlet. This can improve the uniformity of airflow distribution at the four air outlets of the intake manifold, thereby improving the stability of the engine operation of vehicles using intake manifolds.

[0009] In one embodiment, the outer wall surface of the first flow-blocking part is arc-shaped or streamlined;

[0010] And / or, the outer wall surface of the second flow-blocking part is arc-shaped or streamlined.

[0011] It is understandable that by utilizing the arc-shaped or streamlined outer wall surfaces of the two flow-blocking sections, the first flow-blocking section and / or the second flow-blocking section can enhance the gas guiding effect.

[0012] In one embodiment, in the first direction, the distance between the first baffle portion and the first air outlet and the second air outlet are equal respectively;

[0013] And / or, in the first direction, the distance between the second baffle portion and the third and fourth air outlets is equal.

[0014] In one embodiment, the inner wall of the upper mold lobe protrudes in a direction away from the lower mold lobe and forms an external convex groove. Along a second direction, at least a portion of the projection of the external convex groove onto the lower mold lobe is disposed between the second air outlet and the third air outlet; wherein the second direction is perpendicular to the first direction.

[0015] Understandably, using the groove wall of the outward-convex groove to guide the flow of gas allows the gas to be better directed to the third outlet, which can further improve the uniformity of airflow distribution at the four outlets of the intake manifold.

[0016] In one embodiment, along the second direction, the external protrusion is projected toward the lower mold lobe in the second direction, while simultaneously covering part of the second air outlet and part of the third air outlet;

[0017] Furthermore, the groove wall of the external convex groove is configured as a circular arc convex surface.

[0018] It is understandable that using a convex arc surface to guide gas flow can create a stable wall adhesion effect as the gas flows over the convex arc surface, thereby further promoting gas flow.

[0019] In one embodiment, both the upper mold lobe and the lower mold lobe are made of plastic.

[0020] It is understandable that using plastic materials to make the intake manifold allows for a lightweight design, which reduces development costs and also helps the vehicle engine operate with low fuel consumption.

[0021] In one embodiment, the upper mold lobe and the lower mold lobe are connected by welding.

[0022] In one embodiment, the diameter of the intake chamber in the second direction is set to D, where D≤32mm, and the second direction is perpendicular to the first direction.

[0023] It is understandable that by adopting the above-mentioned intake chamber diameter, the intake manifold is made to be flat overall. This allows the upper and lower lobes of the intake manifold to support each other when subjected to impact, thereby improving the overall structural strength of the intake manifold without increasing the wall thickness. This creates conditions for the intake manifold to support the intercooler in the future.

[0024] In one embodiment, a flow guide surface is formed on the lower mold lobe, and the first air outlet, the second air outlet, the third air outlet and the fourth air outlet are disposed through the flow guide surface;

[0025] The guide surface is configured as a plane.

[0026] Understandably, the use of a planar guide surface allows the intake manifold to drain condensate by gravity, eliminating the risk of icing due to water accumulation in the intake manifold and contributing to the stable operation of the vehicle engine in cold and humid environments.

[0027] This application also provides a vehicle engine, including the intake manifold described above.

[0028] In one embodiment, the vehicle engine further includes an intercooler disposed on and connected to the upper mold segment.

[0029] It is understandable that integrating the intercooler into the intake manifold reduces the space required for the intake manifold and intercooler to be placed in the vehicle engine, which is beneficial for the miniaturization design of the vehicle engine.

[0030] This application also provides a vehicle including the above-described intake manifold;

[0031] Alternatively, it may include the vehicle engine described above.

[0032] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0033] The intake manifold, vehicle engine, and vehicle for which this application seeks protection are provided with flow-blocking parts between the first and second air outlets, and between the third and fourth air outlets of the lower module. Utilizing the characteristic that gas flows along the cavity wall of the intake chamber after entering through the intake port, the first flow-blocking part can block part of the airflow originally flowing towards the second air outlet from flowing towards the third air outlet, and the second flow-blocking part can block part of the airflow originally flowing towards the fourth air outlet from flowing towards the third air outlet. This improves the uniformity of airflow distribution at the four air outlets of the intake manifold, thereby enhancing the stability of the vehicle engine operating with the intake manifold. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the intake manifold provided in this application.

[0036] Figure 2 This is a cross-sectional view of the intake manifold provided in this application.

[0037] Figure 3 This is a cross-sectional view of the intake manifold provided in this application from another perspective.

[0038] Figure 4 The fluid simulation diagram of the intake manifold provided in this application.

[0039] Reference numerals: 100, intake manifold; 10, lower mold plate; 11, first air outlet; 12, second air outlet; 13, third air outlet; 14, fourth air outlet; 15, first baffle; 16, second baffle; 17, guide surface; 20, upper mold plate; 21, air inlet; 22, external groove; 221, arc-shaped convex surface; 101, intake chamber; 102, reinforcing rib. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] The intake manifold 100 claimed in this application is used in a vehicle engine to evenly distribute externally introduced gas to each cylinder of the vehicle engine, specifically to introduce the gas into the combustion chamber of each cylinder. Here, the gas includes air, or a combustible gas composed of air and fuel.

[0044] like Figures 1 to 4As shown, the intake manifold 100 provided in this application includes a lower molded section 10 and an upper molded section 20. The lower molded section 10 has at least a first air outlet 11, a second air outlet 12, a third air outlet 13, and a fourth air outlet 14 arranged sequentially and at intervals along a first direction X. Furthermore, in the first direction X, a first baffle 15 is provided on the inner wall of the lower molded section 10 between the first air outlet 11 and the second air outlet, and a second baffle 16 is provided on the inner wall of the lower molded section 10 between the third air outlet 13 and the fourth air outlet 14. The upper molded section 20 is connected to the lower molded section 10 and forms an intake chamber 101 between the lower molded section 10. An air inlet 21 is provided on the upper molded section 20, adjacent to the first air outlet 11, and the air inlet 21 communicates with the first air outlet 11 through the intake chamber 101. The first air outlet 11, the second air outlet 12, the third air outlet 13, and the fourth air outlet 14 are connected. It can be understood that baffles that can block the flow of gas are respectively provided between the first air outlet 11 and the second air outlet 12, and between the third air outlet 13 and the fourth air outlet 14 of the lower module 10. Taking advantage of the characteristic that the gas flows along the cavity wall of the intake chamber 101 after the air inlet 21 is inlet, the first baffle 15 can block part of the airflow originally flowing towards the second air outlet 12 from flowing towards the third air outlet 13, and the second baffle 16 can block part of the airflow originally flowing towards the fourth air outlet 14 from flowing towards the third air outlet 13. This can improve the uniformity of the airflow distribution of the four air outlets on the intake manifold 100, thereby improving the stability of the vehicle engine using the intake manifold 100 during operation.

[0045] Here, the distance between the air inlet 21 and the first air outlet 11 is the shortest, and the air inlet 21 is offset relative to the first air outlet 11, so that the path of the gas introduced through the air inlet 21 to the first air outlet 11 is the shortest. Utilizing the characteristic that the airflow travels along the cavity wall of the air inlet chamber 101 after intake, if the aforementioned first baffle 15 and second baffle 16 were not provided, the air output from the first air outlet 11, second air outlet 12, and fourth air outlet 14 of the lower mold plate 10 would be slightly greater than that from the third air outlet 13. It is understood that the specific position of the air inlet 21 on the upper mold plate 20 can be specifically set according to the usage requirements.

[0046] In this embodiment, the first air outlet 11 is used to communicate with the first cylinder of the vehicle engine, the second air outlet 12 is used to communicate with the second cylinder of the vehicle engine, the third air outlet 13 is used to communicate with the third cylinder of the vehicle engine, and the fourth air outlet 14 is used to communicate with the fourth cylinder of the vehicle engine. That is, the vehicle engine of this application is specifically a four-cylinder engine.

[0047] Of course, it is not limited to this. Six air outlets can be opened on the lower mold plate 10. At this time, a baffle can be set between the first and second air outlets, between the third and fourth air outlets, and between the fifth and sixth air outlets. At the same time, an external protrusion groove 22 is set between the second and third air outlets and between the fourth and fifth air outlets.

[0048] like Figure 2 As shown, in one embodiment, the outer wall surface of the first baffle 15 is arc-shaped or streamlined; and / or, the outer wall surface of the second baffle 16 is arc-shaped or streamlined. Preferably, both the outer wall surfaces of the first baffle 15 and the second baffle 16 are set to arc-shaped or streamlined, which can promote the gas guiding effect of the two baffles.

[0049] like Figure 2 As shown, in one embodiment, in the first direction X, the distance between the first baffle portion 15 and the first air outlet 11 and the second air outlet 12 is equal; and / or, in the first direction X, the distance between the second baffle portion 16 and the third air outlet 13 and the fourth air outlet 14 is equal.

[0050] like Figure 3 As shown, in one embodiment, a guide surface 17 is formed on the lower mold lobe 10, and the guide surface 17 is set as a plane; and the first air outlet 11, the second air outlet 12, the third air outlet 13 and the fourth air outlet 14 are arranged through the guide surface 17. That is to say, in this embodiment, the lower surface of the intake chamber 101 of the intake manifold 100 is set as a plane, so that the intake manifold 100 can realize the self-drainage of condensate by gravity, thereby eliminating the risk of icing caused by easy water accumulation in the intake manifold 100, which is beneficial to the stable operation of the vehicle engine in high cold and high humidity environments. It should be noted that the condensate mentioned above specifically refers to the water droplets formed by condensation in the intake manifold 100 due to the large temperature difference between the inside and outside of the air when the vehicle is not running.

[0051] Here, when the intake manifold 100 of this application is installed in a vehicle, the angle of inclination of the plane on the guide surface 17 of the intake manifold 100 relative to the horizontal plane is set between 5° and 11°, so that the condensate on the guide surface 17 can flow down along the guide surface 17 under the action of the component of gravity and eventually flow into the cylinder of the vehicle engine.

[0052] Optionally, the angle of inclination of the plane on which the guide surface 17 is located relative to the horizontal plane can be set to 5°, 6°, 7°, 8°, 9°, 10°, 11°, etc.

[0053] In one embodiment, both the upper mold lobe 20 and the lower mold lobe 10 are made of plastic. That is, the intake manifold 100 in this embodiment can be made of plastic, which enables a lightweight design of the intake manifold 100. This reduces the development cost of the intake manifold 100 and also helps the vehicle engine operate with low fuel consumption.

[0054] Here, the upper mold piece 20 and the lower mold piece 10 are made of the same plastic material, specifically, they can be made of existing nylon and glass fiber materials.

[0055] Furthermore, the upper mold lobe 20 and the lower mold lobe 10 are connected by welding, specifically by vibration welding to achieve the assembly connection between the upper mold lobe 20 and the lower mold lobe 10.

[0056] like Figure 2 , Figure 3 As shown, in one embodiment, the inner wall of the upper mold lobe 20 protrudes in a direction away from the lower mold lobe 10 to form an outer convex groove 22. Along the second direction Y, at least a portion of the projection of the outer convex groove 22 onto the lower mold lobe 10 is disposed between the second air outlet 12 and the third air outlet 13; wherein, the second direction Y is perpendicular to the first direction X. That is to say, in this embodiment, the upper mold lobe 20 can guide the flow of gas with the groove wall of the outer convex groove 22, which can better guide the gas to the third air outlet 13, thereby further improving the uniformity of airflow distribution at the four air outlets of the intake manifold 100.

[0057] like Figure 2 As shown, in one embodiment, the projection of the outer protrusion 22 onto the lower mold lobe 10 along the second direction Y simultaneously covers a portion of the second air outlet 12 and a portion of the third air outlet 13, thereby further promoting gas flow. It is understood that in other embodiments, the projection of the outer protrusion 22 onto the lower mold lobe 10 along the second direction Y may only cover a portion of the second air outlet 12 or a portion of the third air outlet 13, which will not be elaborated upon here.

[0058] Furthermore, the groove wall of the outer convex groove 22 is set as a circular arc convex surface 221, so that the outer convex groove 22 can guide the gas flow with the circular arc convex surface 221. Utilizing the structural characteristics of the circular arc convex surface 221, the gas can generate a stable wall adhesion effect when flowing through the circular arc convex surface 221, thereby achieving the effect of further promoting the gas flow.

[0059] like Figure 3As shown, in one embodiment, the diameter of the intake chamber 101 in the second direction Y is set to D, where D≤32mm. That is, the diameter of the intake chamber 101 of the intake manifold 100 in the second direction Y does not exceed 32mm. This allows the intake manifold 100 in this embodiment to be flat overall, so that the upper and lower lobes of the intake manifold 100 can support each other when subjected to impact. This improves the overall structural strength of the intake manifold 100 without increasing the wall thickness, creating conditions for the subsequent support of the intercooler (not shown). It should be noted that the intake manifold 100 in this embodiment achieves its overall flattened design by setting the upper guide surface 17 of the lower lobe 10 as a plane.

[0060] Here, the diameter of the intake chamber 101 of the intake manifold 100 in the second direction Y can be 32mm, 31mm, 30mm, 29mm, etc., which can be specifically set according to the needs of use. As long as the cross-sectional area of ​​the intake chamber 101 on the intake manifold 100 in the second direction Y is greater than the cross-sectional area of ​​the first outlet 11, the second outlet 12, the third outlet 13 and the fourth outlet 14, it will not be elaborated here.

[0061] Furthermore, the outer peripheral walls of the upper mold lobe 20 and the lower mold lobe 10 in this embodiment are covered with reinforcing ribs 102. The reinforcing ribs 102 are used to strengthen the structural strength of the upper mold lobe 20 and the lower mold lobe 10 to meet the requirements of the intake manifold 100 for supporting the intercooler.

[0062] This application also provides a vehicle engine, including the intake manifold 100 described above.

[0063] In one embodiment, the vehicle engine also includes an intercooler (not shown), which is disposed on and connected to the upper mold 20. That is, in this embodiment, the vehicle engine integrates the intercooler on the intake manifold 100, which reduces the space required for the intake manifold 100 and the intercooler to be arranged in the vehicle engine, and is beneficial to the miniaturization design of the vehicle engine.

[0064] Here, the intercooler is configured as a water-cooled intercooler, and the water-cooled intercooler can be fixed to the upper mold plate 20 of the intake manifold 100 by bolts.

[0065] This application also provides a vehicle including the above-described intake manifold 100 or the above-described vehicle engine.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. An intake manifold, characterized in that, The intake manifold (100) includes: The lower mold lobe (10) has a first air outlet (11), a second air outlet (12), a third air outlet (13), and a fourth air outlet (14) arranged sequentially and at intervals along a first direction. In the first direction, the inner wall of the lower mold lobe (10) is provided with a first baffle (15) between the first air outlet (11) and the second air outlet (12), and the inner wall of the lower mold lobe (10) is provided with a second baffle (16) between the third air outlet (13) and the fourth air outlet (14). The upper mold lobe (20) is connected to the lower mold lobe (10) and forms an air intake chamber (101) between them. An air intake port (21) is provided on the upper mold lobe (20). The air intake port (21) is located adjacent to the first air outlet (11), and the air intake port (21) is connected to the first air outlet (11), the second air outlet (12), the third air outlet (13), and the fourth air outlet (14) through the air intake chamber (101.

2. The intake manifold according to claim 1, characterized in that, The outer wall of the first flow-blocking part (15) is arc-shaped or streamlined; And / or, the outer wall surface of the second flow-blocking part (16) is arc-shaped or streamlined.

3. The intake manifold according to claim 1, characterized in that, In the first direction, the distance between the first baffle (15) and the first air outlet (11) and the second air outlet (12) is equal; And / or, in the first direction, the distance between the second baffle (16) and the third air outlet (13) and the fourth air outlet (14) is equal.

4. The intake manifold according to claim 1, characterized in that, The inner wall of the upper mold lobe (20) protrudes in a direction away from the lower mold lobe (10) and forms an outer protrusion groove (22). Along the second direction, at least a portion of the projection of the outer protrusion groove (22) on the lower mold lobe (10) is disposed between the second air outlet (12) and the third air outlet (13); wherein the second direction is perpendicular to the first direction.

5. The intake manifold according to claim 4, characterized in that, Along the second direction, the projection of the external protrusion (22) on the lower mold lobe (10) simultaneously covers part of the second air outlet (12) and part of the third air outlet (13). Furthermore, the groove wall of the external convex groove (22) is configured as a circular arc convex surface (221).

6. The intake manifold according to claim 1, characterized in that, The diameter of the air intake chamber (101) in the second direction is set to D, where D≤32mm, and the second direction is perpendicular to the first direction.

7. The intake manifold according to claim 1, characterized in that, A flow guide surface (17) is formed on the lower mold lobe (10), and the first air outlet (11), the second air outlet (12), the third air outlet (13) and the fourth air outlet (14) are disposed through the flow guide surface (17); The guide surface (17) is set as a plane.

8. A vehicle engine, characterized in that, Includes the intake manifold (100) as described in any one of claims 1 to 7.

9. The vehicle engine according to claim 8, characterized in that, The vehicle engine also includes an intercooler, which is disposed on the upper mold plate (20) and connected to the upper mold plate (20).

10. A vehicle, characterized in that, Includes the intake manifold (100) as described in any one of claims 1 to 7; Alternatively, it may include the vehicle engine as described in claim 8 or claim 9.

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