Air inlet device for vehicle and vehicle

Abstract

The utility model discloses an air inlet device for a vehicle and the vehicle. The air inlet device for the vehicle comprises a connecting pipe. One end of the air inlet device is suitable for being connected with an exhaust port of the engine, and the other end of the air inlet device is suitable for being connected with an air inlet of the engine. And the connecting pipe is a variable cross-section pipe. The air inlet device is arranged on the vehicle engine and used for introducing part of waste gas and fresh air in the engine into the combustion chamber of the engine, meanwhile, the variable-cross-section connecting pipe is arranged so that the airflow velocity in the connecting pipe can be increased, condensate water can be taken away in time, and it can be avoided that a large amount of condensate water is accumulated in the pipe and enters the air inlet at the same time; the possibility of engine fire is reduced, and the working stability of the engine can be improved; meanwhile, the utilization of waste gas can be increased, the combustion speed and temperature of the combustion chamber can be reduced, the fuel economy of the vehicle can be improved, and energy conservation and emission reduction can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to an air intake device for a vehicle and the vehicle. Background Art

[0002] In the prior art, part of the exhaust gas generated in the vehicle's engine combustion chamber is cooled in the intercooler in the exhaust gas circulation system to form a large amount of condensed water. Since the pipeline between the intercooler and the throttle is set relatively low, the condensed water gathers in the pipeline and enters the intake manifold together under high-speed conditions, which can easily cause engine misfire. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an air intake device for a vehicle, which can improve the recycling rate of exhaust gas and reduce the possibility of engine misfire.

[0004] A second objective of the present utility model is to provide a vehicle, comprising the air intake device for the vehicle described in the above embodiment.

[0005] According to an embodiment of the first aspect of the utility model, an air intake device for a vehicle includes: an air intake pipeline and a recirculation pipeline.

[0006] One end of the intake pipe is suitable for communicating with the outside air, and the other end of the intake pipe is suitable for communicating with the air intake port of the engine. The intake pipe includes an intercooler, a throttle and a connecting pipe. The connecting pipe is connected between the intercooler and the throttle, and the connecting pipe is a variable-section pipe. One end of the recirculation pipe is suitable for connecting with the exhaust port of the engine, and the other end of the recirculation pipe is connected to the intercooler of the intake pipe.

[0007] According to the air intake device for a vehicle in the embodiment of the utility model, the air intake device is arranged on the vehicle engine to introduce part of the exhaust gas and fresh air inside the engine into the combustion chamber of the engine. At the same time, a connecting pipe with a variable cross-section is arranged to increase the air flow velocity in the connecting pipe, thereby taking away condensed water in time, and avoiding a large amount of condensed water accumulating in the pipe and entering the air intake port at the same time, thereby reducing the possibility of engine misfire and increasing the stability of engine operation. At the same time, it can increase the utilization of exhaust gas, reduce the combustion speed and temperature of the combustion chamber, help improve the fuel economy of the vehicle, and achieve energy conservation and emission reduction.

[0008] In some embodiments, the connecting pipe includes: a first pipe segment and a second pipe segment, one end of the first pipe segment is connected to the intercooler; one end of the second pipe segment is connected to the throttle valve, the other end of the first pipe segment and the other end of the second pipe segment are connected in a circular arc transition, and an angle is formed between the first pipe segment and the second pipe segment.

[0009] In some embodiments, a cross-sectional area of ​​the first pipe segment gradually increases from the one end of the first pipe segment to the other end of the first pipe segment.

[0010] In some embodiments, the diameter of the connecting pipe is L, and L satisfies: 40mm≤L≤60mm.

[0011] In some embodiments, the first tube segment and the second tube segment are vertically arranged.

[0012] In some embodiments, the intercooler includes: an intercooler body and a guide member, wherein the guide member is disposed at the bottom of the intercooler body, one end of the guide member is connected to the intercooler body, and the other end of the guide member extends obliquely toward the connecting pipe.

[0013] In some embodiments, the recirculation line further comprises: a regulating valve, the intake line and the recirculation line are connected to the regulating valve, and the regulating valve is suitable for adjusting the ratio of the mixed gas in the intake line and the recirculation line entering the intercooler. In some embodiments, the recirculation line comprises: an exhaust gas recirculation valve, the exhaust gas recirculation valve is arranged between the exhaust port of the engine and the regulating valve.

[0014] In some embodiments, it further includes: a regulating member, which is disposed in the connecting pipe and is suitable for regulating the flow rate and / or flow velocity of the gas in the connecting pipe.

[0015] A vehicle according to an embodiment of the second aspect of the utility model comprises the air intake device for a vehicle according to the embodiment of the first aspect.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic diagram of a connecting pipe according to an embodiment of the utility model;

[0019] Figure 2 is a schematic diagram of an air intake pipeline according to an embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of an air intake pipeline in an embodiment of the utility model.

[0021] Reference numerals:

[0022] 10. Connecting pipe; 11. First pipe section; 12. Second pipe section;

[0023] 20. Exhaust hole; 21. Air intake hole; 22. Connection hole;

[0024] 30. Intercooler; 31. Intercooler body; 32. Flow guide;

[0025] 40. Throttle. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 3 An air intake device for a vehicle according to an embodiment of the utility model is described. The air intake device for a vehicle includes: an air intake line and a recirculation line.

[0027] Specifically, one end of the intake pipe is suitable for communicating with the outside air, and the other end of the intake pipe is suitable for communicating with the air intake of the engine. The intake pipe includes an intercooler 30, a throttle 40 and a connecting pipe 10. The connecting pipe 10 is connected between the intercooler 30 and the throttle 40, and the connecting pipe 10 is a variable cross-section pipe. One end of the recirculation pipe is suitable for connecting with the exhaust port of the engine, and the other end of the recirculation pipe is connected with the intercooler 30 of the intake pipe. That is, the exhaust gas discharged from the exhaust port of the engine passes through the intercooler 30 when entering the intake pipe from the recirculation pipe.

[0028] The air intake device includes a connecting pipe 10, and the cross section of the connecting pipe 10 is a variable cross section, that is, the connecting pipe 10 is a variable cross section pipe, which can change the flow rate of the gas flowing through the connecting pipe 10. In this embodiment, the connecting pipe 10 is a variable cross section pipe with a flow rate at one end adjacent to the intercooler 30 greater than the flow rate at the other end adjacent to the throttle 40. When part of the condensed water accumulates in the connecting pipe 10, due to the variable cross section setting of the connecting pipe 10, the difference in the gas flow rate inside it can take away part of the condensed water accumulated in the connecting pipe 10, and will be taken out of the connecting pipe 10 and flow to the throttle 40. Therefore, during the operation of the recirculation pipeline of the air intake device, the gas discharged from the exhaust port of the engine is a gas-liquid mixture with a relatively high temperature. Part of the high-temperature gas in the gas-liquid mixture is cooled to form condensed water and accumulates at the connecting pipe 10, and part of it flows to the air intake of the engine through the connecting pipe 10. Since the connecting pipe 10 can increase the flow rate of the gas flowing through, part of the gas flowing to the air intake will take away part of the accumulated condensed water and enter the engine due to the pressure difference. The connecting pipe 10 can prevent a large amount of condensed water from accumulating in the pipe and entering the air inlet at the same time, thereby reducing the possibility of engine misfire and increasing the stability of engine operation;

[0029] The air intake device for a vehicle of the embodiment of the utility model is arranged on the vehicle engine to introduce part of the exhaust gas and fresh air inside the engine into the combustion chamber of the engine. At the same time, a connecting pipe 10 with a variable cross-section is provided to increase the airflow velocity in the connecting pipe 10, thereby taking away condensed water in time, and avoiding a large amount of condensed water accumulating in the pipe and entering the air intake port at the same time, thereby reducing the possibility of engine misfire and increasing the stability of engine operation. At the same time, it can increase the utilization of exhaust gas, reduce the combustion speed and temperature of the combustion chamber, help improve the fuel economy of the vehicle, and achieve energy conservation and emission reduction.

[0030] In this embodiment, the air intake line also includes an intercooler 30, a throttle 40 and a supercharger, and the intercooler 30 and the throttle 40 are respectively connected to the two ends of the connecting pipe 10. The recirculation line includes an air intake device and a cooling device. Among them, the air intake device in the recirculation line is connected to the exhaust port of the engine to transport part of the exhaust gas to the intercooler 30 for cooling, and the intercooler 30 can be water-cooled. The air entering the air intake line from the outside is mixed with the exhaust gas entering from the recirculation line, and then flows to the intercooler 30 for cooling after being pressurized by the supercharger. During the cooling process of the intercooler 30, a large amount of condensed water will be formed and enter the connecting pipe 10. Part of the condensed water accumulates in the connecting pipe 10, and part directly flows through the connecting pipe 10 and enters the throttle 40. The throttle 40 controls the mixed gas through a controllable valve, and transmits the mixed gas and part of the condensed water to the air intake in the engine, and then transports them to the combustion chamber in the engine.

[0031] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the connecting pipe 10 includes: a first pipe section 11 and a second pipe section 12, one end of the first pipe section 11 is connected to the intercooler 30; one end of the second pipe section 12 is connected to the throttle valve 40, the other end of the first pipe section 11 and the other end of the second pipe section 12 are connected in a circular arc transition, and an angle is formed between the first pipe section 11 and the second pipe section 12.

[0032] That is, the ends of the first pipe section 11 and the second pipe section 12 adjacent to each other are connected to each other, the end of the first pipe section 11 away from the second pipe section 12 is connected to the intercooler 30, and the end of the second pipe section 12 away from the first pipe section 11 is connected to the throttle 40. After the mixed exhaust gas enters the intercooler 30 for cooling, a large amount of condensed water is formed in the intercooler 30. Part of the mixed exhaust gas and condensed water flows through the first pipe section 11 and the second pipe section 12 and then flows to the throttle 40. The first pipe section 11 and the second pipe section 12 are connected by an arc transition, and an angle α is formed between the first pipe section 11 and the second pipe section 12. In this embodiment, α satisfies: 0°≤α≤180°. For example, α=90°. That is, the first pipe section 11 and the second pipe section 12 are vertically connected in this embodiment.

[0033] Thus, the connecting pipe 10 includes a first pipe section 11 and a second pipe section 12, one end of the first pipe section 11 is connected to the intercooler 30; one end of the second pipe section 12 is connected to the throttle 40, so that part of the mixed exhaust gas and condensed water inside the intercooler 30 can enter the connecting pipe 10, and take away part of the condensed water accumulated in the first pipe section 11 before entering the throttle 40. At the same time, the first pipe section 11 and the second pipe section 12 are connected by an arc transition and form an angle, which can reduce the resistance of the fluid flowing in the connecting pipe 10, improve the structural strength of the connecting pipe 10, facilitate the exhaust gas to flow from the exhaust port of the engine to the intake port of the engine, reduce the flow path of the exhaust gas in the connecting pipe 10, help the overall layout of the connecting pipe 10 in the engine, optimize the structure of the intake device, improve the exhaust gas circulation efficiency, and at the same time improve the structural strength of the connection between the first pipe section 11 and the second pipe section 12, and reduce the production cost.

[0034] According to some embodiments of the present invention, Figure 3 As shown, the cross-sectional area of ​​the first pipe section 11 gradually increases from one end of the first pipe section 11 , namely, the end connected to the intercooler 30 , to the other end of the first pipe section 11 , namely, the other end connected to the second pipe section 12 .

[0035] In this embodiment, the cross-sectional area of ​​the first pipe section 11 gradually increases from one end of the first pipe section 11 connected to the intercooler 30 to the other end of the first pipe section 11 connected to the second pipe section 12. That is, the cross-sectional area of ​​the end of the first pipe section 11 connected to the intercooler 30 is the smallest.

[0036] Optionally, the cross-sectional area from the other end of the second pipe segment 12 connected to the first pipe segment 11 to the end of the second pipe segment 12 connected to the throttle 40 gradually increases or remains unchanged. In this embodiment, the change in the cross-sectional area of ​​the second pipe segment 12 includes but is not limited to the above two situations, and can be designed as needed. The fluid enters and flows through the connecting pipe 10 with different cross-sections, and a Venturi effect occurs in the connecting pipe 10. The Venturi effect refers to the phenomenon that the gas flow rate increases when the gas passes through a reduced cross-section, and the gas flow rate is inversely proportional to the cross-sectional size. At the same time, low pressure is generated near the high-speed flowing gas, resulting in an adsorption effect to bring the accumulated condensed water out of the connecting pipe 10 and into the engine.

[0037] Therefore, the cross-sectional area of ​​the first pipe segment 11 gradually increases from one end of the first pipe segment 11, that is, the end connected to the intercooler 30, to the other end of the first pipe segment 11, that is, the other end connected to the second pipe segment 12, which can reduce the fluid pressure, increase the flow rate of the fluid, increase the intake volume of the engine, and slow down the combustion speed in the combustion chamber, thereby improving the working efficiency of the intake device. At the same time, the connecting pipe 10 adopts a variable cross-section design, which optimizes the structure of the connecting pipe 10 and improves the structural strength of the connecting pipe 10.

[0038] According to some embodiments of the present invention, Figure 1 As shown, the diameter of the connecting pipe 10 is L, and L satisfies: 40mm≤L≤60mm.

[0039] If the diameter of the connecting pipe 10 is less than 40 mm, the diameter of the connecting pipe 10 is too small. Although the flow rate of the fluid in the connecting pipe 10 is increased, the flow rate of the fluid in the connecting pipe 10 may be reduced, which may reduce the intake volume of the engine; if the diameter of the connecting pipe 10 is greater than 60 mm, the diameter of the connecting pipe 10 is too large. Although the flow rate of the fluid in the connecting pipe 10 is increased, the flow rate of the fluid in the connecting pipe 10 may be reduced, which is not conducive to evenly removing the accumulated condensed water, and may cause the condensed water to enter the engine at the same time, causing the engine to misfire. For example, L = 45 mm.

[0040] Therefore, by limiting the diameter range of the connecting pipe 10, the flow rate of the fluid in the connecting pipe 10 can be increased, and the flow velocity of the fluid in the connecting pipe 10 can be increased at the same time, which is convenient for further increasing the intake volume of the engine, improving the working efficiency of the intake device, improving the reliability of the intake device, and improving the utilization rate of the exhaust gas by the intake device, further reducing the emission of vehicle exhaust gas, and further improving the economy of the vehicle.

[0041] According to some embodiments of the present invention, Figure 1 As shown, the first pipe section 11 and the second pipe section 12 are vertically arranged.

[0042] In this embodiment, the angle formed between the first pipe segment 11 and the second pipe segment 12 is 90°, so the relative bending deformation of the first pipe segment 11 and the second pipe segment 12 can be avoided, which is convenient for the arrangement of the connecting pipe 10, is beneficial for the connection between the air intake device and the engine, and increases the utilization of space. At the same time, the connection quality and connection strength between the first pipe segment 11 and the second pipe segment 12 are further improved, the service life of the connecting pipe 10 is increased, and the length of the first pipe segment 11 and the second pipe segment 12 is reduced, the flow path of the exhaust gas is shortened, and the production cost of the connecting pipe 10 is reduced.

[0043] According to some embodiments of the present invention, Figure 2 and Figure 3 As shown, the intercooler 30 includes: an intercooler body 31 and a guide member 32 . The guide member 32 is disposed at the bottom of the intercooler body 31 . One end of the guide member 32 is connected to the intercooler body 31 , and the other end of the guide member 32 extends obliquely toward the connecting pipe 10 .

[0044] That is, the guide member 32 is arranged below the center of the intercooler body 31 , one end of the guide member 32 is connected to the intercooler body 31 , and the other end of the guide member 32 extends downwardly toward the connecting pipe 10 and is connected to one end of the first pipe section 11 adjacent to the intercooler 30 .

[0045] Therefore, one end of the guide member 32 is connected to the intercooler body 31, and the other end of the guide member 32 extends obliquely toward the connecting pipe 10, so that the condensed water formed by the cooling of the mixed exhaust gas in the intercooler 30 can be promptly collected to the first pipe section 11, so that part of the condensed water flows with the high-speed mixed exhaust gas inside the first pipe section 11 to the throttle valve 40 and then enters the engine, thereby avoiding the condensed water after condensation of the intercooler 30 from accumulating in the intercooler 30 and affecting the cooling effect of the intercooler 30.

[0046] According to some embodiments of the present invention, it further includes: a regulating valve, the intake pipeline and the recirculation pipeline are connected to the regulating valve, and the regulating valve is suitable for adjusting the ratio of the mixed gas in the intake pipeline and the recirculation pipeline entering the intercooler 30.

[0047] The regulating valve is arranged between the recirculation pipeline and the intake pipeline, and is used to connect the recirculation pipeline and the intake pipeline, so that the air and exhaust gas entering from the recirculation pipeline and the intake pipeline can be regulated by the regulating valve. The regulating valve can adjust the ratio of the incoming air and exhaust gas. The exhaust gas passing through the recirculation pipeline and the air entering from the air filter enter the regulating valve together. The mixed gas formed after the regulation of the regulating valve enters the supercharging valve and then flows to the intercooler 30 after being supercharged. Therefore, the regulating valve can adjust the ratio of the mixed gas in the regulating valve according to different intake requirements of the engine.

[0048] According to some embodiments of the utility model, the recirculation pipeline includes: an exhaust gas recirculation valve, which is arranged between the exhaust port of the engine and the regulating valve. In this embodiment, the recirculation pipeline includes an exhaust gas recirculation valve, one end of the exhaust gas recirculation valve is connected to the cooling device in the recirculation pipeline, and the other end is connected to the regulating valve in the intake pipeline. The exhaust gas recirculation valve is suitable for adjusting the amount of exhaust gas in the recirculation pipeline to control the proportion of exhaust gas in the mixed gas entering the intake port. Therefore, after the exhaust gas passes through the cooling device in the recirculation pipeline, it enters the exhaust gas recirculation valve. The exhaust gas recirculation valve adjusts the amount of exhaust gas entering the intake pipeline according to the engine's demand for intake air, effectively reducing the oxygen concentration and combustion temperature in the combustion chamber.

[0049] According to some embodiments of the present invention, the device further comprises: a regulating member, which is disposed in the connecting pipe 10 and is suitable for regulating the flow rate and / or flow velocity of the gas in the connecting pipe 10 .

[0050] The regulating member is a device for regulating the gas flow and / or flow rate in the connecting pipe 10, and the regulating member is arranged in the connecting pipe 10. When the fluid adsorbing condensed water enters the connecting pipe 10, the gas flow and / or flow rate can be regulated by the opening degree of the regulating member.

[0051] For example, when the air intake of the engine is small, the flow sensor located in the air intake device transmits a signal to the regulating member, and the regulating member increases the opening degree, increasing the flow rate of the gas in the connecting pipe 10 until the air intake of the engine reaches a preset threshold. When too much condensed water accumulates in the connecting pipe 10, the water level at the connecting pipe 10 or the misfire of the engine can be detected, and the signal can be transmitted to the regulating member, and the regulating member reduces the opening degree, reduces the cross-sectional area of ​​the connecting pipe 10, and increases the gas flow rate, so as to take away the accumulated condensed water more quickly.

[0052] Therefore, by arranging the regulating member in the connecting pipe 10, the flow rate of the gas in the connecting pipe 10 can be quickly responded and adjusted according to the air intake of the engine, so that the air intake of the engine can be within a reasonable range and the working performance of the engine is guaranteed. The gas flow rate of the connecting pipe 10 can be adjusted in time according to the accumulation of condensed water in the connecting pipe 10 or the fire of the engine to prevent a large amount of condensed water from entering the engine at the same time and affecting the working stability of the engine.

[0053] In this embodiment, Figure 1 and Figure 2 As shown, the connecting pipe 10 also includes an exhaust hole 20, an air intake hole 21 and a connecting hole 22 for connecting to a sensor. The exhaust hole 20, the air intake hole 21 and the connecting hole 22 are all connected to the inside of the connecting pipe 10. Among them, the exhaust pipe is suitable for timely decompression and exhaust when the pressure inside the connecting pipe 10 is relatively high, so as to ensure the normal use of the air intake pipeline. The provision of the air intake hole 21 can increase the utilization of the gas inside the connecting pipe 10, and provide air intake for other systems of the vehicle, such as providing air intake for the air filter. The connecting hole 22 is suitable for installing a temperature sensor for detecting the temperature of the fluid in the connecting pipe 10, and the feedback signal is given to the ECU unit of the vehicle for real-time adjustment of the air intake of the air intake device to ensure that the temperature of the fluid in the air intake pipeline is within a suitable range.

[0054] A vehicle according to an embodiment of the second aspect of the utility model comprises the air intake device for a vehicle according to the embodiment of the first aspect.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air intake device for a vehicle, characterized in that: The air intake device comprises: An air intake pipeline, one end of which is suitable for communicating with external air, and the other end of which is suitable for communicating with an air intake port of an engine, wherein the air intake pipeline comprises an intercooler, a throttle valve and a connecting pipe, wherein the connecting pipe is connected between the intercooler and the throttle valve, and the connecting pipe is a variable cross-section pipe; A recirculation pipeline, one end of which is suitable for being connected to the exhaust port of the engine, and the other end of which is communicated with the intercooler of the intake pipeline.

2. The air intake device for a vehicle according to claim 1, characterized in that: The connecting pipe comprises: a first pipe section, one end of which is connected to the intercooler; A second pipe segment, one end of the second pipe segment is connected to the throttle valve, the other end of the first pipe segment and the other end of the second pipe segment are connected in a circular arc transition, and an angle is formed between the first pipe segment and the second pipe segment.

3. The air intake device for a vehicle according to claim 2, characterized in that: The cross-sectional area of ​​the first pipe segment gradually increases from the one end of the first pipe segment to the other end of the first pipe segment.

4. The air intake device for a vehicle according to claim 2, characterized in that: The diameter of the connecting pipe is L, and L satisfies: 40mm≤L≤60mm.

5. The air intake device for a vehicle according to claim 2, characterized in that: The first pipe section and the second pipe section are vertically arranged.

6. The air intake device for a vehicle according to claim 1, characterized in that: The intercooler comprises: Intercooler body; A flow guide is arranged at the bottom of the intercooler body, one end of the flow guide is connected to the intercooler body, and the other end of the flow guide extends obliquely toward the connecting pipe.

7. The air intake device for a vehicle according to claim 1, characterized in that: Also includes: The regulating valve is connected to the intake pipeline and the recirculation pipeline, and the regulating valve is suitable for adjusting the ratio of the mixed gas in the intake pipeline and the recirculation pipeline entering the intercooler.

8. The air intake device for a vehicle according to claim 7, characterized in that: The recirculation pipeline comprises an exhaust gas recirculation valve, which is arranged between the exhaust port of the engine and the regulating valve.

9. The air intake device for a vehicle according to any one of claims 1 to 8, characterized in that: Also includes: A regulating member, wherein the regulating member is disposed in the connecting pipe and is suitable for regulating the flow rate and / or flow velocity of the gas in the connecting pipe.

10. A vehicle, characterized in that: The invention comprises an air intake device for a vehicle according to any one of claims 1 to 9.

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