Air intake system, engine and vehicle

Abstract

The utility model discloses an air intake system, engine and vehicle relates to the technical field of automobile equipment for engine, the air intake system includes air intake manifold and intake pipe, air intake manifold is used for with engine connection, air intake manifold sets up several gas outlets along its length direction, and one end of intake pipe is connected with air intake manifold, and the inside of intake pipe is equipped with several shunt ribs that divide intake pipe along its length direction, and the diameter of one end of air intake manifold away from intake pipe, air intake manifold junction is less than the diameter of intake pipe, air intake manifold junction, and one end of intake pipe away from air intake manifold is equipped with the connecting elbow pipe, and the throttle valve is equipped between connecting elbow pipe and intake pipe, through various shunt design, the air intake is shunted, can guarantee the more even of engine each cylinder air intake, and further promote engine oil gas full mixing combustion, reduce the pollution of exhaust gas.

Description

Technical Field

[0001] This utility model relates to the field of automotive equipment technology, and more specifically, to an intake system. Furthermore, this utility model also relates to an engine including the aforementioned intake system. Additionally, this utility model also relates to a vehicle including the aforementioned engine. Background Technology

[0002] Vehicle exhaust refers to the emissions produced after fuel combustion, which pose significant health risks. For example, benzene compounds and volatile oil and gas emissions are highly flammable and explosive, posing not only major safety hazards but also representing a waste of resources. With my country's rapid economic development in recent years, annual car sales and the total number of vehicles in circulation have increased dramatically, making air quality an urgent issue. While gradually and effectively controlling exhaust and evaporative emissions from newly manufactured vehicles, it is also essential to address the oil and gas emissions from both newly manufactured and existing vehicles. Currently, the limited area at the connection point between the intake manifold and the cylinder block in engine intake systems leads to uneven airflow into the cylinder, hindering complete combustion and easily causing environmental pollution from oil and gas emissions.

[0003] In summary, how to improve the uniformity of airflow in the engine intake manifold 3 is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an air intake system that enables the reasonable distribution of air entering the engine, resulting in more uniform air intake and promoting more complete combustion of fuel and air, thereby reducing emissions.

[0005] Another objective of this invention is to provide an engine that includes the above-described intake system.

[0006] Another objective of this invention is to provide a vehicle that includes the aforementioned engine.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An intake system for an engine, comprising:

[0009] An intake manifold, which is used to connect to the engine, has a number of air outlets distributed along its length.

[0010] An intake pipe is provided, with its first end connected to the intake manifold. The intake pipe contains several flow dividers to separate it into several independent airflow channels. The diameters at both ends of the intake manifold are smaller than the diameter of the connection point between the intake pipe and the intake manifold. A connecting bend is provided at the second end of the intake pipe, and a throttle valve is provided between the connecting bend and the intake pipe. Furthermore, the number of air outlets is six, and the connection point between the intake pipe and the intake manifold is located at two-thirds of the length of the intake manifold.

[0011] Furthermore, the ratio of the diameter of the end of the intake manifold away from the intake pipe and the diameter of the end of the intake manifold connected to the intake pipe to the diameter of the end of the intake manifold away from the intake pipe and the diameter of the end of the intake manifold connected to the intake pipe is 2:3.

[0012] Furthermore, the present invention includes two of the plurality of diverting ribs, namely a first diverting rib and a second diverting rib, which divide the intake pipe into three equal airflow channels.

[0013] Furthermore, in this invention, the ends of the first and second diverter ribs near the intake manifold are located on the same plane as the outlet of the intake manifold.

[0014] Furthermore, the connecting bend has several air inlets on the side away from the throttle valve.

[0015] Furthermore, this utility model

[0016] A heating pipe and a conversion flange are provided between the intake pipe and the throttle valve; or, a replacement pipe and a conversion flange are provided between the intake pipe and the throttle valve.

[0017] The heating tube is detachably installed on the air intake pipe to allow for replacement of the replacement tube. The heating tube and the replacement tube are of the same length. A heating device is provided at the heating tube. When the heating tube is used, a sensor and a relay are installed on the air intake pipe. The sensor and the relay are electrically connected to the heating device.

[0018] Furthermore, the present invention provides an installation end face on the side of the intake manifold away from the intake pipe for connecting to the engine, and the installation end face forms a preset angle with the vertical plane.

[0019] Furthermore, in this invention, the preset included angle is 71 degrees.

[0020] An engine comprising the intake system described in any of the preceding claims.

[0021] A vehicle comprising the aforementioned engine.

[0022] The intake system provided by this utility model, in use, connects the intake manifold to the engine, and arranges several air outlets along the length of the intake manifold to connect with corresponding air inlets of the engine. One end of the intake pipe is connected to the intake manifold, and the intake pipe has several diverting ribs that separate the intake pipe along its length. These diverting ribs distribute the incoming air, allowing the airflow to be evenly discharged from the several air outlets of the intake manifold. The diameter of the end of the intake manifold furthest from the intake pipe and at the intake manifold connection point is smaller than the diameter of the intake pipe and the intake manifold connection point. The intake manifold features a variable diameter design, where the airflow speed is increased at the smaller diameter section, facilitating air passage and allowing air to flow more easily to the end away from the intake pipe and intake manifold connection point, thereby increasing the uniformity of air distribution. A connecting bend is located at the end of the intake pipe away from the intake manifold, and a throttle valve is installed between the connecting bend and the intake pipe. In other words, the intake volume is controlled by the throttle valve. Through multiple flow-dividing designs, the intake air is diverted to ensure more uniform air intake to each cylinder of the engine, thereby improving the complete mixing and combustion of air and fuel and reducing exhaust pollution.

[0023] This utility model also provides an engine, including the intake system described above, which has the aforementioned beneficial effects.

[0024] This utility model also provides a vehicle that includes the aforementioned engine and has the aforementioned beneficial effects. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 A structural schematic diagram showing a partial cross-sectional view of the overall front of the device provided by this utility model;

[0027] Figure 2 This is a schematic diagram of the overall side structure of the device provided by this utility model;

[0028] Figure 3 This is a partial structural diagram of the throttle valve of the device provided by this utility model.

[0029] Figures 1-3 In the accompanying drawings, the reference numerals include:

[0030] 1. Intake manifold; 2. Outlet; 3. Intake pipe; 4. Flow divider; 401. First flow divider; 402. Second flow divider; 5. Connecting bend; 6. Throttle valve; 7. Inlet; 8. Adapter flange; 9. Heating element; 10. Sensor; 11. Relay; 12. Mounting end face. Detailed Implementation

[0031] 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 protection scope of the present utility model.

[0032] The core of this invention is to provide an air intake system that allows for a more rational distribution of air entering the engine, resulting in more uniform air intake and promoting more complete combustion of fuel and air, thereby reducing emissions.

[0033] Another objective of this invention is to provide an engine that includes the above-described intake system.

[0034] Another objective of this invention is to provide a vehicle that includes the aforementioned engine.

[0035] Please refer to Figure 1 An intake system for an engine includes an intake manifold 1 and an intake pipe 3. The intake manifold 1 is connected to the engine and has several outlets 2 along its length. The first end of the intake pipe 3 is connected to the intake manifold 1. The intake pipe 3 has several ribs 4 to divide it into several independent airflow channels. The diameters at both ends of the intake manifold 1 are smaller than the diameter at the connection between the intake pipe 3 and the intake manifold 1. The second end of the intake pipe 3 has a connecting bend 5, and a throttle valve 6 is provided between the connecting bend 5 and the intake pipe 3. It should be noted that most engines currently use exhaust gas recirculation (EDR) systems. In this embodiment, the connecting pipes are connected to the intake ports 7 and the exhaust gas recirculation system, respectively. During the engine regeneration stage, the opening of the throttle valve 6 is adjusted to generate high-temperature exhaust gas, which burns off the particulate matter in the DPF, thereby meeting the engine emission standards.

[0036] Optionally, in some embodiments, the throttle body 6 adopts a D×D design arrangement. Specifically, the spacing of the bolt mounting holes on the throttle body 6 that connect to the intake pipe 3 is all D, so that the four mounting holes are arranged in a square. In this way, under the same boundary conditions, the throttle body 6 can be arranged at multiple angles, making the arrangement more compact and increasing the versatility of the throttle body 6. At the same time, it allows the intake port 7 of the intake connecting bend 5 to present multiple angles, meeting more vehicle requirements and enriching the engine configuration.

[0037] Optionally, in some embodiments, the intake pipe 3, throttle valve 6 and intake manifold 1 are sealed and fixed by gaskets and bolts, or sealed by flanges.

[0038] Optionally, in some embodiments, the intake pipe 3 is connected to the intake manifold 1 in a vertical position.

[0039] Optionally, in some embodiments, the flow divider 4 and the intake pipe 3 are integrally formed.

[0040] Optionally, in some embodiments, the number of diverter ribs 4 can be selected according to actual usage requirements. Specifically, it can be matched with the number of air outlets 2 of the intake manifold 1 and set as a multiple of the number of air outlets 2 of the intake manifold 1.

[0041] Optionally, in some embodiments, a plurality of diverter ribs 4 are evenly distributed within the intake pipe 3, dividing the intake pipe 3 into a plurality of flow channels with equal cross-sectional areas.

[0042] In use, the intake manifold 1 is connected to the engine, and several air outlets 2 along its length are connected to the corresponding air inlets 7 of the engine. One end of the intake pipe 3 is connected to the intake manifold 1. The intake pipe 3 contains several diverting ribs 4 that separate the intake pipe 3 along its length. These diverting ribs 4 distribute the incoming air, ensuring that the airflow is evenly discharged from the several air outlets 2 of the intake manifold 1. The diameter of the end of the intake manifold 1 furthest from the intake pipe 3 and at the connection point is smaller than the diameter of the connection point between the intake pipe 3 and the intake manifold 1. This design facilitates the distribution of airflow. The manifold 1 adopts a variable diameter design, which increases the airflow speed at the smaller diameter position, which is conducive to air passage. The air is more likely to flow to the end away from the connection between the intake pipe 3 and the intake manifold 1, thereby increasing the uniformity of air distribution. The end of the intake pipe 3 away from the intake manifold 1 is provided with a connecting bend 5. A throttle valve 6 is provided between the connecting bend 5 and the intake pipe 3. That is to say, the intake volume is controlled by the throttle valve 6. Through multiple flow splitting designs, the intake air is split to ensure more uniform intake of each cylinder of the engine, thereby improving the full mixing and combustion of engine fuel and reducing exhaust pollution.

[0043] Please refer to Figure 1In some embodiments, the number of air outlets 2 is six. The connection between the air intake pipe 3 and the air intake manifold 1 is located at two-thirds of the length of the air intake manifold 1. Specifically, the connection between the air intake pipe 3 and the air intake manifold 1 is located between the air outlets 2 of the air intake manifold 1 from left to right, between the second air outlet 2 and the third air outlet 2.

[0044] In other embodiments, the connection between the intake pipe 3 and the intake manifold 1 may also be located at other positions along the length of the intake manifold 1, such as at one-half or one-sixth of the length of the intake manifold 1. The position of the connection between the intake pipe 3 and the intake manifold 1 can be determined according to the vehicle engine mounting position.

[0045] In other embodiments, the number of air outlets 2 may be other numbers, such as three, four, eight or twelve, depending on the number of cylinders of the engine used, so as to adapt to engines with different numbers of cylinders.

[0046] Please refer to Figure 1 In some embodiments, the diameter of the end of the intake manifold 1 away from the intake pipe 3 and the end where the intake manifold 1 is connected is 2:3. That is, the diameter of the intake manifold 1 gradually decreases away from its connection with the intake pipe 3 in order to increase the airflow velocity at the far end and ensure that the air can be evenly distributed.

[0047] In the above embodiment, specifically, when the intake manifold 1 has six air outlets 2, and the connection between the intake pipe 3 and the intake manifold 1 is located between the second and third air outlets 2 from left to right, the diameter of the left side of the intake manifold 1 remains unchanged, while the diameter of the right side is reduced between the fourth and fifth air outlets 2, thereby ensuring that the air output of the six air outlets 2 remains approximately consistent.

[0048] In other embodiments, the diameter ratio of the intake manifold 1 can be any ratio, determined according to actual production needs.

[0049] Optionally, in some embodiments, the diameter of the intake manifold 1 can be gradually reduced, i.e., by using a tapered surface to reduce it, or by using a stepped surface to reduce it.

[0050] Please refer to Figure 1In some embodiments, the number of several flow dividers 4 is two, namely the first flow divider 401 and the second flow divider 402. That is, when the number of exhaust ports of the intake manifold 1 is two, the number of flow dividers 4 is two. The first flow divider 401 is set near the left end of the intake manifold 1 and is located at one-third of the diameter of the intake pipe 3. The second flow divider 402 is set near the right end of the intake manifold 1 and is located at two-thirds of the diameter of the intake pipe 3. This achieves uniform dispersion of the air entering the intake pipe 3 and further improves the uniformity of exhaust.

[0051] In the above embodiment, the intake pipe 3 is a bent pipe to reduce the area occupied by the intake system, and the flow divider 4 is located at the bend of the intake pipe 3. The flow divider 4 adopts an arc-shaped structure concentric with the intake pipe 3.

[0052] In the above embodiment, the length of the first diverting rib 401 is greater than the length of the second diverting rib 402, so that the first diverting rib 401 can divert enough air.

[0053] Optionally, in some embodiments, the ends of the first diverter 401 and the second diverter 402 near the intake manifold 1 are located on the same plane as the outlet of the intake pipe 3, so that they can be manufactured as a single unit.

[0054] Please refer to Figure 1 In some embodiments, the connecting bend 5 is provided with a plurality of air inlets 7 on the side away from the throttle valve 6, and the plurality of air inlets 7 are respectively connected to the corresponding air inlet and the recirculation system.

[0055] Optionally, in some embodiments, several air inlets 7 are all bends to accommodate the air pipe connection requirements in different directions.

[0056] Please refer to Figure 1 In some embodiments, a heating pipe 9 and a conversion flange 8 are provided between the intake pipe 3 and the throttle valve 6, or a replacement pipe and a conversion flange 8 are provided between the intake pipe 3 and the throttle valve 6. The heating pipe 9 and the replacement pipe are of the same length, and a heating device is provided at the heating pipe 9. That is, when the heating pipe 9 is used, the heating pipe 9 and the conversion flange 8 are provided between the intake pipe 3 and the throttle valve 6 to heat the intake air. At this time, a sensor 10 and a relay 11 are installed on the intake pipe 3. The sensor 10 and the relay 11 are electrically connected to the heating device, and the relay 11 is electrically connected to the vehicle's central control system. If the heating configuration is selected, a replacement pipe and a conversion flange 8 are provided between the intake pipe 3 and the throttle valve 6. That is, by using a replacement pipe of the same length to switch with the heating pipe 9, the position of the intake port 7 of the intake pipe 3 is exactly the same as that of the intake port 7 in the heating configuration. This avoids the need to design additional piping to connect to the intercooler, reduces design difficulty, and facilitates the overall installation of the intake system.

[0057] Optionally, in some embodiments, the sensor 10, the relay 11, and the heating device are all fixed to the air intake pipe 3 by bolts.

[0058] Optionally, in some embodiments, the heating device may employ an electric heating tube 9, which achieves its heating function by being wound around the inner or outer wall of the heating tube 9.

[0059] Please refer to Figure 1 In some embodiments, the intake manifold 1 has a mounting end face 12 on the side away from the intake pipe 3 for connecting to the engine. The mounting end face 12 forms a preset angle with the vertical plane. The preset tilt angle can minimize the resistance when air enters the engine.

[0060] Optionally, in some embodiments, the preset included angle is 71 degrees, and the intake manifold 1 is designed to be at 71° with the engine cylinder head mounting surface. This can reduce the flow resistance of gas entering the cylinder head, and the cylinder head can better organize the airflow to meet the required vortex ratio.

[0061] An engine comprising the intake system described in any of the preceding claims.

[0062] A vehicle comprising the engine described above.

[0063] In other words, the key point of this utility model is that by providing several diversion ribs 4 in the intake pipe 3 to divide the intake pipe 3 along its length, the intake air is diverted by the diversion ribs 4, so that the airflow can be evenly discharged from several air outlets 2 of the intake manifold 1. The diameter of the end of the intake manifold 1 away from the intake pipe 3 and the connection point of the intake manifold 1 is smaller than the diameter of the intake pipe 3 and the connection point of the intake manifold 1. By adopting a variable diameter design for the intake manifold 1, the airflow speed is increased at the smaller diameter position, which is conducive to the passage of air. The air is more likely to flow to the end away from the intake pipe 3 and the connection point of the intake manifold 1, thereby increasing the uniformity of air distribution. The end of the intake pipe 3 away from the intake manifold 1 is provided with a connecting bend 5. A throttle valve 6 is provided between the connecting bend 5 and the intake pipe 3. That is to say, the intake air volume is controlled by the throttle valve 6. Through multiple diversion designs, the intake air is diverted, which can ensure that the intake air of each cylinder of the engine is more uniform, thereby improving the full mixing and combustion of engine oil and air and reducing exhaust pollution.

[0064] In addition to the intake systems disclosed in the above embodiments, this utility model also provides an engine including the above-described intake system. The structure of other parts of the engine is described in the prior art and will not be repeated here.

[0065] In addition to the engines disclosed in the above embodiments, this utility model also provides a vehicle including the above-described engine. The structure of other parts of the vehicle is described in the prior art and will not be repeated here.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0067] The above provides a detailed description of the air intake system, engine, and vehicle provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. An intake system for an engine, characterized in that, include: An intake manifold (1) is used to connect to an engine, and the intake manifold (1) has a plurality of air outlets (2) distributed along its length. An intake pipe (3) is provided. The first end of the intake pipe (3) is connected to the intake manifold (1). The intake pipe (3) is provided with several diverter ribs (4) to divide the intake pipe (3) into several independent airflow channels. The diameter of both ends of the intake manifold (1) is smaller than the diameter of the connection between the intake pipe (3) and the intake manifold (1). The second end of the intake pipe (3) is provided with a connecting bend (5). A throttle valve (6) is provided between the connecting bend (5) and the intake pipe (3).

2. The intake system according to claim 1, characterized in that, The number of the air outlets (2) is six, and the connection between the air inlet pipe (3) and the air intake manifold (1) is located at two-thirds of the length of the air intake manifold (1).

3. The intake system according to claim 2, characterized in that, The ratio of the diameter of the end of the intake manifold (1) that is far from the intake pipe (3) to the diameter of the end of the intake manifold (1) that is far from the intake pipe (3) is 2:

3.

4. The intake system according to claim 1, characterized in that, The number of the several flow dividers (4) is two, namely the first flow divider (401) and the second flow divider (402), which divide the air intake pipe (3) into three airflow channels.

5. The intake system according to claim 4, characterized in that, The first shunt rib (401) and the second shunt rib (402) are located on the same plane as the outlet of the intake pipe (3) at the end near the intake manifold (1).

6. The intake system according to claim 1, characterized in that, The connecting bend (5) has several air inlets (7) on the side away from the throttle valve (6).

7. The intake system according to any one of claims 1-6, characterized in that, A heating pipe (9) and a conversion flange (8) are provided between the intake pipe (3) and the throttle valve (6), or a replacement pipe and a conversion flange (8) are provided between the intake pipe (3) and the throttle valve (6). The heating tube (9) is detachably installed on the air intake pipe (3) to replace the replacement tube. The heating tube (9) and the replacement tube are of the same length. A heating device is provided at the heating tube (9). When the heating tube (9) is used, a sensor (10) and a relay (11) are installed on the air intake pipe (3). The sensor (10) and the relay (11) are electrically connected to the heating device.

8. The intake system according to claim 7, characterized in that, The intake manifold (1) has an installation end face (12) on the side away from the intake pipe (3) for connecting to the engine. The installation end face (12) forms a preset angle with the vertical plane.

9. The intake system according to claim 8, characterized in that, The preset included angle is 71 degrees.

10. An engine, characterized in that, The intake system includes any one of claims 1-9.

11. A vehicle, characterized in that, Includes the engine as described in claim 10.

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