Engine intake system, engine assembly, and vehicle

Abstract

An engine intake system (1), comprising an intercooler (11), an intake manifold (12), a connecting member (13), and an elastic member (14). The intercooler (11) comprises a body (111) and a bracket (112) connected to the body (111). A through hole is formed in the bracket (112), a connecting hole is formed in a first surface of the intake manifold (12), and the connecting member (13) passes through the through hole and the connecting hole so as to connect the intercooler (11) and the intake manifold (12). The elastic member (14) is arranged between the bracket (112) and at least one of the connecting member (13) and the intake manifold (12). The engine intake system (1) can address the problem that when the intercooler (11) is rigidly connected to the intake manifold (12), the modality of the engine intake system (1) is lowered, resulting in an increased risk of resonance in the engine intake system (1), thereby alleviating the NVH problem of vehicles. Further provided are an engine assembly and a vehicle which are provided with the engine intake system (1).

Description

Engine intake system, engine assembly and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202420366247.4 and application date of February 27, 2024, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the technical field of automobile accessories, and in particular to an engine air intake system, an engine assembly and a vehicle. Background Art

[0004] The engine air intake system is an important part of the engine. The main function of the air intake system is to supply clean, dry, sufficient and stable air to the engine to meet the engine's needs, and prevent impurities and large dust particles in the air from entering the engine combustion chamber and causing abnormal wear of the engine. The quality of the air intake system design directly affects the engine performance and the performance of the entire vehicle.

[0005] In the existing technology, the engine intake system generally includes an intercooler and an intake manifold, which are rigidly connected. As a result, the weight of the intercooler is directly applied to the intake manifold, lowering the overall mode of the intake system, increasing the risk of resonance noise in the intake system, and reducing the vehicle's NVH (Noise, Vibration, Harshness) performance, which is in urgent need of improvement. Summary of the Invention

[0006] The engine intake system, engine assembly and vehicle provided in the embodiments of the present application can avoid the mode reduction of the intake system through decoupling design, further improve the problem of aggravated resonance of the engine intake system caused by mode reduction, improve the NVH problem of the vehicle, and enhance driving comfort.

[0007] In a first aspect, an embodiment of the present application provides an engine intake system, comprising: an intercooler, comprising a main body and a bracket connected to each other, with a through hole provided on the bracket; an intake manifold, comprising a first surface, with a connecting hole provided on the first surface; a connecting member, passing through the through hole and the connecting hole to connect the intercooler and the intake manifold; an elastic member, arranged between the bracket and the intake manifold, and / or the elastic member is arranged between the bracket and the connecting member.

[0008] In some embodiments, the elastic member includes a first elastic gasket disposed between the bracket and the first surface.

[0009] In some embodiments, the connecting member includes a stop section and an extension section connected to the stop section and extending along the first direction, the stop section abuts against a side of the bracket facing away from the intake manifold, and the extension section passes through the through hole and is connected to the connecting hole.

[0010] In some embodiments, the elastic member further includes a second elastic gasket, which is disposed between the bracket and the stop segment.

[0011] In some embodiments, the elastic member is arranged between the first surface and the stop section, and an opening is provided through the elastic member along the first direction, the opening is connected to the connecting hole, the extension section is passed through the opening and accommodated in the connecting hole, and a groove extending along its circumferential direction is provided on the side surface of the elastic member, the bracket includes a bottom plate and side plates connected to each other, the through hole is provided in the bottom plate, and at least a portion of the bottom plate enclosing the opening is accommodated in the groove.

[0012] In some embodiments, the groove is disposed in the middle of the elastic member in the first direction.

[0013] In some embodiments, the thickness of the elastic member is 9 mm to 15 mm.

[0014] In some embodiments, the engine intake system further includes a throttle valve, which is disposed between the body and the intake manifold. The inlet end of the throttle valve is connected to the intercooler, and the outlet end of the throttle valve is connected to the intake manifold via a flexible pipeline.

[0015] In some embodiments, the length of the flexible tube is less than or equal to 100 mm.

[0016] In a second aspect, an embodiment of the present application provides an engine assembly, comprising the engine intake system of the embodiment of the first aspect described above.

[0017] In a third aspect, an embodiment of the present application provides a vehicle, which adopts the engine assembly of the embodiment of the second aspect mentioned above.

[0018] In the technical solution of the embodiment of the present application, the engine intake system includes an intercooler, an intake manifold, a connecting member and an elastic member. The intercooler includes a main body and a bracket connected to the main body. A through hole is provided on the bracket. A connecting hole is provided on the first surface of the intake manifold. The connecting member is passed through the through hole and the connecting hole to connect the intercooler and the intake manifold. An elastic member is provided between the connecting member and at least one of the intake manifolds and the bracket. By providing the elastic member, a decoupling design between the intake manifold and the intercooler is realized to improve the problem that the mode of the entire engine intake system is lowered when the intake manifold and the intercooler are rigidly connected, resulting in an increased risk of resonance of the engine intake system, so as to improve the NVH problem of the vehicle and improve driving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic structural diagram of an engine intake system provided in an embodiment of the present application;

[0020] FIG2 is a cross-sectional view of some embodiments of the present application at point A in FIG1 ;

[0021] FIG3 is a cross-sectional view of some embodiments of the present application at point A in FIG1 ;

[0022] FIG4 is a cross-sectional view of some other embodiments of the present application at point A in FIG1 .

[0023] Explanation of the accompanying drawings: 1. Intake system; 11. Intercooler; 111. Main body; 112. Bracket; 1121. Side panel; 1122. Bottom plate; 12. Intake manifold; 13. Connector; 131. Stop section; 132. Extension section; 14. Elastic member; 141. First elastic gasket; 142. Second elastic gasket; 15. Throttle valve; 16. Flexible pipeline; 17. Bushing. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0026] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0027] In addition, the technical terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the embodiments of the present application, the meaning of "plurality" is more than two, unless otherwise specifically defined.

[0028] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0029] The engine air intake system is an important part of the engine. The main function of the air intake system is to supply clean, dry, sufficient and stable air to the engine to meet the engine's needs, and prevent impurities and large dust particles in the air from entering the engine combustion chamber and causing abnormal wear of the engine. The quality of the air intake system design directly affects the engine performance and the performance of the entire vehicle.

[0030] The inventors of the present application have noticed that in the prior art, the intercooler and the intake manifold in the engine's intake system are rigidly connected, the vibration transmission rate between the intercooler and the intake manifold is high, the risk of resonance of the intake system is high, and the vehicle's NVH (Noise, Vibration, Harshness) problem is serious.

[0031] Based on the above problems discovered by the inventor, the inventor designed an engine intake system, which includes an intercooler, an intake manifold, a connecting member and an elastic member. The intercooler includes a main body and a bracket connected to the main body, a through hole is provided on the bracket, and a connecting hole is provided on the first surface of the intake manifold. The connecting member includes a stop section and an extension section, the through hole and the connecting hole are cooperatively arranged and interconnected, the stop section stops at the side of the bracket away from the intake manifold, the extension section passes through the through hole and is connected to the connecting hole, so that the intercooler and the intake manifold can be fixed together by the connecting member, and an elastic member is provided between the connecting member and at least one of the intake manifolds and the bracket. The decoupling design between the intake manifold and the intercooler is realized by providing the elastic member, so as to improve the problem that when the intake manifold and the intercooler are rigidly connected, the mode of the entire engine intake system is lowered, resulting in an increased risk of resonance of the engine intake system, improve the NVH problem of the vehicle, and improve driving comfort.

[0032] Please refer to Figures 1 and 2. Figure 1 is a structural schematic diagram of an engine intake system provided in an embodiment of the present application; Figure 2 is a cross-sectional view at point A in Figure 1 of some embodiments of the present application.

[0033] In the first aspect, as shown in Figures 1 and 2, an embodiment of the present application provides an engine intake system 1, which includes an intercooler 11, an intake manifold 12, a connector 13 and an elastic member 14. The intercooler 11 includes a body 111 and a bracket 112 that are connected to each other, and the bracket 112 is provided with a through hole; the intake manifold 12 includes a first surface, and the first surface is provided with a connecting hole (not shown in the figure); the connector 13 is passed through the through hole and the connecting hole to connect the intercooler 11 and the intake manifold 12; the elastic member 14 is provided between the bracket 112 and the intake manifold 12, and / or the elastic member 14 is provided between the bracket 112 and the connector 13.

[0034] In the technical solution of the embodiment of the present application, the engine intake system 1 includes an intercooler 11, an intake manifold 12, a connector 13 and an elastic member 14. The intercooler 11 includes a main body 111 and a bracket 112 connected to the main body 111. The bracket 112 is provided with a through hole. The first surface of the intake manifold 12 is provided with a connecting hole. The connector 13 is passed through the through hole and the connecting hole to connect the intercooler 11 and the intake manifold 12. An elastic member 14 is provided between the connector 13 and at least one of the intake manifolds 12 and the bracket 112. By providing the elastic member 14, a decoupling design between the intake manifold 12 and the intercooler 11 is realized to improve the problem that when the intake manifold 12 and the intercooler 11 are rigidly connected, the mode of the entire engine intake system 1 is lowered, resulting in an increased resonance risk of the engine intake system 1, so as to improve the NVH problem of the vehicle and improve driving comfort.

[0035] The intercooler 11 cools down the high-temperature, supercharged air, reducing the engine's heat load, increasing air intake, and ultimately boosting engine power. Intercoolers 11 are typically made of aluminum alloy. Depending on the cooling medium, they can be classified as air-cooled or water-cooled.

[0036] The intercooler 11 includes a body 111 and a bracket 112 connected to the outer wall of the body 111. The body 111 of the intercooler 11 is connected to the intake manifold 12 via the bracket 112 to enhance the overall structural strength of the intake system 1. The bracket 112 can be integrally formed with the body 111 of the intercooler 11 to enhance the structural strength of the intercooler 11, or separately formed from the body 111 to facilitate replacement of the bracket 112 in the event of damage.

[0037] The first surface is the mating surface of the intake manifold 12 and is disposed correspondingly to the bracket 112. The first surface is the outer surface of the intake manifold 12 base, or the outer surface of the assembly structure of the intake manifold 12, which may be a boss or a mounting bracket.

[0038] Optionally, the elastic member 14 is a gasket, a rubber ring, or a pad. The elastic member 14 is made of rubber material, PVC (Polyvinyl chloride) material, or silicone material.

[0039] Moreover, by achieving a soft connection between the intake manifold 12 and at least one of the connectors 13 and the bracket 112 through the elastic member 14, the manufacturing tolerances of the bracket 112, the intake manifold 12 or the connector 13 can be compensated to a certain extent, thereby reducing the difficulty of assembly and relieving assembly stress.

[0040] By using the elastic member 14 to achieve a soft connection between the intake manifold 12 and at least one of the connectors 13 and the bracket 112, a decoupling design of the intercooler 11 and the intake manifold 12 is realized to improve the mode of the intake system 1, so as to improve the problem that when the intercooler 11 and the intake manifold 12 are rigidly connected, the mode of the entire intake system 1 is lowered, resulting in an increased risk of resonance of the engine intake system 1, so as to improve the NVH problem of the vehicle.

[0041] Furthermore, by adjusting the hardness of the elastic member 14, the amplitude of the vibration filtering between the intake manifold 12 and the intercooler 11 can be adjusted, thereby adjusting the NVH level and reliability of the intake system 1. For example, when assembling the intake system 1, the elastic member 14 can be made of an appropriate material and hardness to achieve the effect of adjusting the amplitude of the vibration filtering between the intake manifold 12 and the intercooler 11; alternatively, when assembling the intake system 1, the elastic member 14 can be made of an appropriate shape and size to achieve the effect of adjusting the amplitude of the vibration filtering between the intake manifold 12 and the intercooler 11. The specific hardness of the elastic member 14 can be flexibly designed by relevant technicians based on the vibration filtering requirements.

[0042] In some embodiments, as shown in FIG. 1 and FIG. 2 , the elastic member 14 includes a first elastic gasket 141 , and the first elastic gasket 141 is disposed between the bracket 112 and the first surface.

[0043] The shape of the first elastic gasket 141 can be set according to actual conditions. For example, the first elastic gasket 141 is circular or rectangular, and a first opening is provided through the middle of the first elastic gasket 141. The connecting section passes through the through hole of the bracket 112 and the first opening of the first elastic gasket in sequence and is accommodated and connected in the connecting hole.

[0044] In these embodiments, the bracket 112 and the first surface are separated by a first elastic gasket 141 to reduce vibration transmission between the bracket 112 and the intake manifold 12, reduce the risk of resonance between the intercooler 11 and the intake manifold 12, improve the NVH problem of the vehicle, and enhance driving comfort.

[0045] In some embodiments, as shown in Figures 1 and 2, the connecting member 13 includes a stop section 131 and an extension section 132 connected to the stop section 131 and extending along the first direction X. The stop section 131 abuts against the side of the bracket 112 away from the intake manifold 12, and the extension section 132 is passed through the through hole and connected to the connecting hole.

[0046] Optionally, the connecting member 13 is a bolt, the extension section 132 is provided with an external thread, the connecting hole is provided with an internal thread, or the connecting hole is provided with an insert nut.

[0047] In these embodiments, the connector 13 includes a stop section 131 and an extension section 132. The extension section 132 is passed through the through hole and connected to the connecting hole to connect the intercooler 11 and the intake manifold 12. The stop section 131 abuts against the side of the bracket 112 away from the intake manifold 12 to improve the fixing effect of the connector 13 on the intake manifold 12 and the intercooler 11.

[0048] Please refer to FIG. 3 , which is a cross-sectional view of some embodiments of the present application at point A in FIG. 1 .

[0049] In some embodiments, as shown in FIG. 1 and FIG. 3 , the elastic member 14 further includes a second elastic gasket 142 . The second elastic gasket 142 is disposed between the bracket 112 and the stopping section 131 .

[0050] Optionally, the first elastic gasket 141 and the second elastic gasket 142 have the same structure, so there is no need to re-manufacture the mold of the second set of elastic members 14, thereby reducing the preparation cost of the elastic members 14.

[0051] Optionally, a second opening is provided through the middle of the second elastic gasket 142, and the connecting section passes through the second opening, the through hole of the bracket 112 and the first through hole in sequence and is accommodated and connected in the connecting hole, and the stop section 131 directly or indirectly presses against the second elastic gasket 142.

[0052] In these embodiments, the elastic member 14 includes a first elastic gasket 141 and a second elastic gasket 142 arranged on both sides of the bracket 112. The first elastic gasket 141 and the second elastic gasket 142 respectively separate the intake manifold 12 from the stop section 131 and the bracket 112 to reduce the vibration transmission between the bracket 112 and the intake manifold 12, and reduce the vibration transmission between the bracket 112 and the intake manifold 12 through the connecting member 13, thereby reducing the risk of resonance between the intercooler 11 and the intake manifold 12, thereby improving the NVH problem of the vehicle and improving driving comfort. In addition, during the assembly process of the engine intake system 1, the elastic member 14 can compensate for the preparation tolerances of each component to reduce the difficulty of assembling the intercooler and the intake manifold.

[0053] Please refer to FIG. 4 , which is a cross-sectional view of some other embodiments of the present application at point A in FIG. 1 .

[0054] In some embodiments, as shown in Figures 1 and 4, the elastic member 14 is arranged between the first surface and the stop section 131, and the elastic member 14 is provided with an opening (not shown) along the first direction X, the opening and the connecting hole are connected, the extension section 132 is passed through the opening and accommodated in the connecting hole, and a groove extending along the circumferential direction of the opening is provided on the side surface of the elastic member 14, and the bracket 112 includes a bottom plate 1122 and a side plate 1121 that are interconnected, and a through hole is provided in the bottom plate 1122, and at least a portion of the bottom plate 1122 that encloses the opening is accommodated in the groove.

[0055] The elastic member 14 is cylindrical or cubical in shape and has an opening extending therethrough, corresponding to the connection hole. The extension section 132 extends through the opening of the elastic member 14 and is received within the connection hole. A groove extending continuously along the circumference of the opening is provided on the outer surface of the elastic member 14. The elastic member 14 is inserted into the through-hole of the bracket 112, and the portion of the bottom plate 1122 enclosing the through-hole is received within the groove.

[0056] The groove includes a side wall and a top wall and a bottom wall connected to both ends of the side wall. The bottom plate 1122 of the bracket 112 is spaced apart by the top wall and the stop section 131, and is spaced apart by the bottom wall and the intake manifold 12, and is spaced apart by the side wall and the extension section 132.

[0057] Optionally, the intake system 1 also includes a bushing 17, which includes an inserting section and an abutting section. The inserting section is inserted into the opening of the elastic member 14 and is located between the elastic member 14 and the extension section 132. The abutting section is connected to one end of the inserting section in the first direction X and extends along the radial direction of the opening. The elastic member 14 and the stop section 131 are respectively located on both sides of the abutting section in the first direction X. The stop section 131 presses against the abutting section of the bushing 17 and presses against the elastic member 14 through the abutting section to facilitate the fixing of the elastic member 14 by the connecting member 13, thereby improving the reliability of the intake system 1.

[0058] In these embodiments, the elastic member 14 is arranged between the first surface and the stop section 131, and a groove is provided on the surface of the elastic member 14. The partial bottom plate 1122 of the opening enclosed by the bracket 112 is accommodated in the groove of the elastic member 14, so that the connecting member 13 and the intake manifold 12 are separated from the bracket 112 by the elastic member 14, so as to reduce the vibration of the bracket 112 transmitted to the connecting member 13 and the intake manifold 12, so as to reduce the risk of resonance between the intercooler 11 and the intake manifold 12, so as to improve the NVH problem of the vehicle and improve driving comfort.

[0059] In some embodiments, as shown in FIG. 4 , the groove is disposed in the middle of the elastic member 14 in the first direction X.

[0060] In these embodiments, the groove is disposed in the middle of the elastic member 14 in the first direction X to improve the force uniformity on both sides of the bottom plate 1122 in the first direction X.

[0061] In some embodiments, as shown in FIG. 4 , the thickness of the elastic member 14 is 9 mm to 15 mm.

[0062] In these embodiments, the thickness of the elastic member 14 is 9mm-15mm to improve the problem that the elastic member 14 is unable to fully block the vibration transmission of the intercooler 11 due to the thin thickness of the elastic member 14. When the thickness of the elastic member 14 is 9mm-15mm, the resonance noise can be effectively reduced by 2dB-4dB, and the NVH problem of the vehicle can be improved. When the thickness of the elastic member 14 is less than 9mm, the noise will be significantly worsened by 1dB-3dB than the noise reduction effect when the thickness of the elastic member 14 is set to 9mm-15mm, resulting in an increased risk of resonance between the intercooler 11 and the intake manifold 12. Secondly, when the thickness of the elastic member 14 is greater than 15mm, it will cause the connection effect to be poorly fixed, so the thickness of the elastic member 14 is preferably 9mm-15mm.

[0063] In some embodiments, as shown in Figure 1, the engine intake system 1 also includes a throttle valve 15, which is arranged between the body 111 and the intake manifold 12. The inlet end of the throttle valve 15 is connected to the intercooler 11, and the outlet end of the throttle valve 15 and the intake manifold 12 are connected through a flexible pipe 16.

[0064] In these embodiments, the throttle valve 15 is flexibly connected to the intake manifold 12 through a flexible pipe 16, and the intercooler 11 and the intake manifold 12 are connected through an elastic member 14. The elastic member 14 and the flexible pipe 16 are used to implement a decoupling design between the intercooler 11, the throttle valve 15 and the intake manifold 12 to improve the mode of the intake system 1, thereby avoiding the various system modes of the entire system as much as possible, reducing the resonance risk of the intake system 1, and thus improving the NVH performance of the intake system 1 and improving driving comfort.

[0065] The throttle valve 15 and the intake manifold 12 are connected via a flexible pipe 16 , which can compensate for the manufacturing tolerance of the product to a certain extent, reduce the difficulty of assembly, and relieve assembly stress.

[0066] The throttle valve 15 and the intake manifold 12 are connected by a flexible pipe 16, which reduces the risk of the intercooler 11 and the throttle valve 15 pulling the intake manifold 12 under the action of external force when the intercooler 11 and the throttle valve 15 directly act on the intake manifold 12, causing damage to the intake manifold 12; it also improves the problem that the weight of the intercooler 11 and the throttle valve 15 directly acts on the intake manifold 12, lowering the entire mode of the intake system 1 and increasing the risk of resonance noise of the intake system 1.

[0067] By adjusting the hardness of the flexible conduit 16, the amplitude of vibration filtering between the intake manifold 12 and the throttle valve 15 can be adjusted, thereby adjusting the NVH level and reliability of the intake system 1. For example, during assembly of the intake system 1, the flexible conduit 16 can be made of an appropriate material and have an appropriate hardness to achieve the effect of adjusting the amplitude of vibration filtering between the intake manifold 12 and the throttle valve 15. Alternatively, during assembly of the intake system 1, the flexible conduit 16 can be made of an appropriate shape and size and have an appropriate hardness to achieve the effect of adjusting the amplitude of vibration filtering between the intake manifold 12 and the throttle valve 15. The specific hardness of the flexible conduit 16 can be flexibly designed by relevant technicians based on the required vibration filtering.

[0068] Optionally, the flexible pipe 16 is a silicone hose, which can absorb part of the gas noise.

[0069] In other embodiments, as shown in FIG. 1 , the length of the flexible tube 16 is less than or equal to 100 mm.

[0070] The length of the flexible pipe 16 is less than or equal to 100 mm, which can achieve a flexible connection, adjust the amplitude of the vibration filtering between the intake manifold 12 and the throttle valve 15, and effectively reduce the noise by 1dB-3dB. When the length of the flexible pipe 16 is greater than 100 mm, the high negative pressure behind the throttle valve will cause the risk of the excessively long flexible pipe 16 being sucked flat, so the length of the flexible pipe 16 is preferably less than or equal to 100 mm.

[0071] Optionally, sealing members are provided at both ends of the flexible pipe 16 to reduce the risk of air leakage in the air intake system 1 .

[0072] In a second aspect, an embodiment of the present application provides an engine assembly, comprising the engine intake system of the embodiment of the first aspect described above.

[0073] In a third aspect, an embodiment of the present application provides a vehicle that utilizes the engine assembly of the embodiment of the second aspect. The vehicle may be a pure electric vehicle, a hybrid electric vehicle, or an extended-range electric vehicle, etc., which is not specifically limited in this application.

[0074] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

Claims

1. An engine air intake system, comprising: The intercooler comprises a body and a bracket connected to each other, wherein the bracket is provided with a through hole; An intake manifold includes a first surface, wherein a connecting hole is provided on the first surface; a connecting member, passing through the through hole and the connecting hole, so as to connect the intercooler and the intake manifold; An elastic member is arranged between the bracket and the intake manifold, and / or the elastic member is arranged between the bracket and the connecting member.

2. The engine intake system according to claim 1, wherein: The engine intake system further includes a throttle valve, which is arranged between the body and the intake manifold. The inlet end of the throttle valve is connected to the intercooler, and the outlet end of the throttle valve is connected to the intake manifold via a flexible pipeline.

3. The engine intake system according to claim 1 or 2, wherein: The elastic member includes a first elastic gasket, and the first elastic gasket is arranged between the bracket and the first surface.

4. The engine intake system according to any one of claims 1 to 3, wherein: The connecting member includes a stop section and an extension section connected to the stop section and extending along a first direction. The stop section abuts against a side of the bracket away from the intake manifold. The extension section passes through the through hole and is connected to the connecting hole.

5. The engine air intake system according to claim 4, wherein: The elastic member further includes a second elastic gasket, which is arranged between the bracket and the stopping section.

6. The engine air intake system according to claim 4 or 5, wherein: The elastic member is arranged between the first surface and the stop section, the elastic member is provided with an opening along the first direction, the opening is communicated with the connecting hole, the extension section is passed through the opening and accommodated in the connecting hole, and a groove extending along the circumferential direction of the elastic member is provided on the side surface of the elastic member. The bracket includes a bottom plate and side plates connected to each other, the through hole is provided on the bottom plate, and at least a portion of the bottom plate surrounding the opening is accommodated in the groove.

7. The engine air intake system according to claim 6, wherein: The groove is arranged at a middle portion of the elastic member in the first direction.

8. The engine air intake system according to claim 7, wherein: The thickness of the elastic member is 9 mm to 15 mm.

9. The engine air intake system according to claim 2, wherein: The length of the flexible pipe is less than or equal to 100 mm.

10. An engine assembly comprising the engine intake system according to any one of claims 1 to 9.

11. A vehicle, comprising the engine assembly according to claim 10.

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