Engine air inlet pipe, air inlet system, engine assembly and vehicle

Abstract

The utility model discloses an engine air inlet pipe, an air inlet system, an engine assembly and a vehicle, relates to the technical field of vehicles, and aims to solve the problem that a breather pipe is sucked flat in the operation process of an engine. The engine air inlet pipe is used for an air inlet system of an engine and comprises an air inlet pipe body and a supporting piece, and the supporting piece is arranged on the outer side of the air inlet pipe body in a split mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially relates to engine intake pipe, intake system, engine assembly and vehicle. BACKGROUND

[0002] The vehicle comprises an engine assembly, and the engine assembly comprises an intake system to introduce air into a combustion chamber of the engine assembly through the intake system. The intake system comprises an air cleaner, a supercharger and an intake manifold which are sequentially connected. The air cleaner and the supercharger are usually connected by an air intake pipe.

[0003] In the related art, the air intake pipe is usually a hose, and the intake system introduces air into the combustion chamber by forming a negative pressure in the combustion chamber to extract air from the outside. Thus, when the combustion chamber extracts air through the intake system, the air intake pipe is easily sucked flat under the action of the negative pressure, thereby affecting the air flow of the air intake pipe and the air intake of the engine assembly. SUMMARY

[0004] The utility model discloses an engine intake pipe, intake system, engine assembly and vehicle, and aims to solve the problem that the engine intake pipe is sucked flat during the operation of the engine assembly.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] In the first aspect, the application provides an engine intake pipe, which comprises an intake pipe body and a support. The support is arranged on the outside of the intake pipe body.

[0007] The engine intake pipe provided by the application has the support arranged on the outside of the intake pipe body. When the intake pipe body expands, the support can limit the radial dimension of the intake pipe body from increasing. Thus, when part of the intake pipe body is sucked flat, if the support is arranged on the part of the intake pipe body that is not sucked flat, the other part of the intake pipe body (i.e. the part that is not sucked flat) can not expand or expand slightly under the action of the support. In the case where the air pressure in the intake pipe body does not change, the gas will act on the part of the intake pipe body that is sucked flat to make the part quickly recover, thereby improving the anti-sucking flat capability of the engine intake pipe and ensuring the air flow through the air hose.

[0008] Further, when the intake pipe body 1 is sucked flat, the sucked flat part will contract inward in a first radial direction and expand outward in a second radial direction, the first radial direction being perpendicular to the second radial direction. At this time, when the support 2 is arranged at the part of the intake pipe body 1 that is sucked flat, the support 2 can limit the expansion of the intake pipe body 1 in the second radial direction, so as to limit the degree of being sucked flat of the intake pipe body 1 in the first radial direction. In the case that the air pressure in the intake pipe body 1 is unchanged, the air acts on the part of the intake pipe body 1 that is sucked flat, so as to make the part of the intake pipe body 1 that is sucked flat recover quickly, thereby improving the anti-sucking flat capability of the engine intake pipe 213.

[0009] In some embodiments, the support extends along a circumferential direction of the intake pipe body.

[0010] In some embodiments, the support comprises a support ring, and the intake pipe body is arranged in the support ring; or the support comprises a first clamping hoop, and the first clamping hoop is clamped to the intake pipe body.

[0011] In some embodiments, the support is one of a metal piece, a hard plastic piece and a hard rubber piece.

[0012] In some embodiments, a cross section of the support is one of a circular shape, a square shape and an elliptical shape, and the cross section is perpendicular to an end surface of the support in the extending direction of the intake pipe body.

[0013] In some embodiments, the support is in interference fit with the intake pipe body.

[0014] In some embodiments, the intake pipe body is provided with a limiting groove, the limiting groove is recessed from an outer surface of the intake pipe body towards an inner surface of the intake pipe body, and extends along a circumferential direction of the intake pipe body, and at least part of the support is arranged in the limiting groove.

[0015] In some embodiments, the support is provided in a plurality of pieces, and the plurality of supports are arranged in intervals along the extending direction of the intake pipe body.

[0016] In some embodiments, the length of the intake pipe body is positively correlated with the number of the supports.

[0017] In some embodiments, a radial distance between an outer surface of the support and an inner surface of the support is a first distance, and along the radial direction of the intake pipe body, a depth of the limiting groove is greater than or equal to the first distance.

[0018] In some embodiments, the engine intake pipe further comprises a reinforcing rib, the reinforcing rib is connected to the outer surface of the intake pipe body, and the reinforcing rib extends along the extending direction of the intake pipe body, and / or the reinforcing rib extends along the circumferential direction of the intake pipe body.

[0019] In a second aspect, the application provides an air intake system, the air intake system comprising an engine intake pipe.

[0020] In some embodiments, the air intake system further comprises an air cleaner and a supercharger, one end of an air intake pipe body of the engine air intake pipe is in communication with an outlet of the air cleaner, and the other end of the air intake pipe body is in communication with an inlet of the supercharger.

[0021] In a third aspect of the present application, an engine assembly is provided, which comprises an air intake system.

[0022] In a fourth aspect of the present application, a vehicle is provided, which comprises a vehicle body and an engine assembly, and the engine assembly is arranged on the vehicle body. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 A structural schematic diagram of a vehicle shown in some embodiments of the present application;

[0025] Figure 2 A structural schematic diagram of an air intake system shown in some embodiments of the present application;

[0026] Figure 3 A structural schematic diagram of an engine air intake pipe shown in some embodiments of the present application;

[0027] Figure 4 A structural schematic diagram of a first pipe segment shown in some embodiments of the present application; Figure 3 A structural schematic diagram of part A shown in some embodiments of the present application.

[0028] REFERENCE SIGNS

[0029] 1000, vehicle; 100, vehicle body; 200, engine assembly; 210, air intake system; 211, air cleaner; 212, supercharger; 213, engine air intake pipe; 220, cylinder block; 221, combustion chamber;

[0030] 1, air intake pipe body; 11, first pipe segment; 12, telescopic pipe segment; 13, second pipe segment; 14, air intake end; 15, air outlet end; 16, limiting groove; 18, first limiting rib; 19, second limiting rib; 1A, reinforcing rib;

[0031] 2, support; 21, first support; 22, second support; 23, third support; 24, fourth support; 25, fifth support;

[0032] 3, pipe joint; 31, first pipe joint; 32, second pipe joint; 321, crankcase ventilation pipe joint; 322, fuel vapor emission pipe joint; 323, engine ventilation pipe joint; 33, connecting piece;

[0033] 4, second clamp. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified, the above directional description can be flexibly arranged in actual application under the condition of meeting the relative positional relationship shown in the drawings.

[0036] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0037] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "communicating" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the embodiments of the present application, the terms "comprising", "containing" or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, article, or apparatus that comprises a list of elements not only includes those elements, but also includes other elements that are not expressly listed, or other elements inherent in such process, article, or apparatus. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, article, or apparatus that includes the element.

[0039] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of terms such as "exemplary" or "for example" is merely intended to present concepts in a concrete manner.

[0040] In the description of the present application, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The present application provides a vehicle 1000. The vehicle 1000 can be a pure electric vehicle 1000, a hybrid electric vehicle 1000, a plug-in hybrid electric vehicle 1000, a range-extended electric vehicle 1000, a fuel vehicle, etc.

[0042] Please refer to Figure 1 , Figure 1 The present application provides a vehicle 1000. The vehicle 1000 can be a pure electric vehicle 1000, a hybrid electric vehicle 1000, a plug-in hybrid electric vehicle 1000, a range-extended electric vehicle 1000, a fuel vehicle, etc.

[0043] The vehicle 1000 further comprises wheels. In some examples, the engine assembly 200 is configured to provide power to the vehicle 1000 to drive the vehicle 1000. Specifically, the engine assembly 200 can be in driving connection with the wheels to drive the wheels to rotate, thereby driving the vehicle 1000 to move.

[0044] In some examples, the vehicle 1000 can further comprise a generator, and the engine assembly 200 is in driving connection with the generator to drive the generator to generate electricity. For example, the vehicle 1000 can be a hybrid electric vehicle 1000 or a range-extended electric vehicle 1000.

[0045] In some embodiments, the engine assembly 200 comprises an air intake system 210 and a cylinder block 220. The cylinder block 220 is provided with a combustion chamber 221 for providing a space for fuel combustion. The air intake system 210 is connected to the combustion chamber 221 for introducing air into the combustion chamber 221 to provide oxygen required for fuel combustion.

[0046] Please refer to Figure 2 , Figure 2 A structural schematic diagram of the air intake system 210 is shown in some embodiments of the present application. The air intake system 210 comprises an air filter 211, a supercharger 212 and an engine air intake pipe 213. The outlet of the supercharger 212 is in communication with the combustion chamber 221. In some examples, the air intake system 210 further comprises an intake manifold. The outlet of the supercharger 212 is in communication with the inlet of the intake manifold, and the outlet of the intake manifold is in communication with the combustion chamber 221, so that the supercharger 212 is in communication with the combustion chamber 221 through the intake manifold.

[0047] One end of the engine air intake pipe 213 is in communication with the outlet of the air filter 211, and the other end of the engine air intake pipe 213 is in communication with the inlet of the supercharger 212.

[0048] When the engine assembly 200 is working, external air can enter the air filter 211 so that the air filter 211 filters the air. The filtered air enters the supercharger 212 through the engine air intake pipe 213 and is pressurized by the supercharger 212. The pressurized air enters the combustion chamber 221 through the intake manifold and mixes with the fuel injected into the combustion chamber 221 by the fuel injector to combust and provide power to the vehicle 1000.

[0049] In the related art, the engine air intake pipe 213 is usually a hose. During the working process of the engine assembly 200, negative pressure is generated in the engine assembly 200 when the piston is in the intake stroke in the cylinder. This negative pressure can make external air enter the cylinder, so that the engine air intake pipe 213 is usually under negative pressure. If the engine air intake pipe 213 is provided as a hose, if the negative pressure in the hose is too large, the hose will be sucked flat, thereby affecting the air flow of the engine air intake pipe 213 and affecting the air intake of the engine assembly 200.

[0050] Based on this, in some embodiments, please refer to Figure 3 , and in combination with Figure 2 , Figure 3 A structural schematic diagram of the engine air intake pipe 213 is shown in some embodiments of the present application. The engine air intake pipe 213 comprises an air intake pipe body 1 and a support 2. The support 2 is arranged on the outside of the air intake pipe body 1, and the support 2 and the air intake pipe body 1 are in a split structure.

[0051] During the process of the outside air entering the combustion chamber 221 of the cylinder 220 through the intake pipe body 1, the part of the intake pipe body 1 will be sucked flat due to the negative pressure generated by the engine assembly 200 when the piston is in the intake stroke in the cylinder, and the part being sucked flat will cause the other parts of the intake pipe body 1 to be blocked and expanded. In this way, the part of the intake pipe body 1 being sucked flat is not easy to recover to the normal state, thereby causing the air passage area of the intake pipe body 1 to become smaller and affecting the air volume.

[0052] By providing the support 2 outside the intake pipe body 1, when the intake pipe body 1 expands, the support 2 can limit the radial size of the intake pipe body 1 from becoming larger. In this way, when part of the intake pipe body 1 is sucked flat, if the support 2 is arranged at the part of the intake pipe body 1 that is not sucked flat, the other parts (i.e. the part that is not sucked flat) of the intake pipe body 1 can not expand or expand very little under the action of the support 2, and in the case that the gas pressure in the intake pipe body 1 does not change, the gas will act on the part of the intake pipe body 1 that is sucked flat to make the part of the intake pipe body 1 that is sucked flat recover quickly, thereby improving the anti-sucking flat capability of the engine intake pipe 213 and ensuring the air volume passing through the intake pipe body 1.

[0053] In addition, when the intake pipe body 1 is sucked flat, the part being sucked flat will contract inward in a first radial direction and expand outward in a second radial direction, and the first radial direction is perpendicular to the second radial direction. At this time, when the support 2 is arranged at the part of the intake pipe body 1 that is sucked flat, the support 2 can limit the expansion of the intake pipe body 1 in the second radial direction, thereby limiting the degree of the intake pipe body 1 being sucked flat in the first radial direction, and in the case that the gas pressure in the intake pipe body 1 does not change, the gas acts on the part of the intake pipe body 1 that is sucked flat to make the part of the intake pipe body 1 that is sucked flat recover quickly, thereby improving the anti-sucking flat capability of the engine intake pipe 213.

[0054] In some embodiments, the engine intake pipe 213 can be made of rubber, rubber modified material, high temperature resistant plastic or other materials that can withstand high temperature for a long time.

[0055] In some embodiments, the support 2 extends along the circumference of the intake pipe body 1.

[0056] By making the support 2 extend along the circumference of the intake pipe body 1, the support 2 can support the intake pipe body 1 outside the intake pipe body 1, limit the expansion of the intake pipe body 1, and thereby improve the anti-sucking flat performance of the intake pipe body 1.

[0057] In some embodiments, the support 2 includes a support ring. The intake pipe body 1 is arranged in the support ring. By making the support 2 a support ring and the intake pipe body 1 arranged in the support ring, the support ring can support the circumference of the intake pipe body 1 to improve the support effect.

[0058] In some other embodiments, the support 2 comprises a first clamp. The first clamp is clamped to the air intake pipe body 1. It should be noted that the first clamp usually comprises two halves which are connected by screwing, clamping or other detachable means.

[0059] By taking the first clamp as the support 2, the air intake pipe body 1 can be supported, and the support 2 and the air intake pipe body 1 can be connected conveniently.

[0060] In some embodiments, the support 2 is one of a metal piece, a hard plastic piece and a hard rubber piece.

[0061] In this way, the support 2 has high strength and will not be deformed when subjected to the force of the air intake pipe body 1 towards the support 2, so as to better limit the deformation of the air intake pipe body 1.

[0062] In some embodiments, the cross section of the support 2 is one of a circle, a square and an ellipse, and the cross section is perpendicular to the end surface of the support 2 in the extension direction of the air intake pipe body 1. In this application, the cross section of the support 2 is exemplarily described as a circle.

[0063] In this way, the cross section of the support 2 is set as a circle, which can avoid damage to the air intake pipe body 1 when the air intake pipe body 1 is expanded.

[0064] In some embodiments, the support 2 is in interference fit with the air intake pipe body 1.

[0065] By the interference fit between the support 2 and the air intake pipe body 1, the support 2 can generate extrusion force on the outer peripheral wall of the air intake pipe body 1, so as to make the connection between the support 2 and the air intake pipe body 1 more stable, and at the moment when the air intake pipe body 1 is deformed, the support 2 can limit the deformation of the air intake pipe body 1 towards the support 2, thereby improving the supporting effect of the support 2 on the air intake pipe body 1.

[0066] In some embodiments, the air intake pipe body 1 comprises a first pipe segment 11, an elastic pipe segment 12 and a second pipe segment 13 which are sequentially connected, and the elastic pipe segment 12 can be extended and retracted along the extension direction of the air intake pipe body 1.

[0067] The elastic pipe segment 12 is arranged between the first pipe segment 11 and the second pipe segment 13. On the one hand, when installed, the length of the air intake pipe body 1 can be adjusted and the direction of the air intake pipe body 1 can be changed by the elastic pipe segment 12, so as to realize installation decoupling, so that the air intake pipe body 1 can avoid other components and be installed conveniently. On the other hand, due to the extension and retraction performance of the elastic pipe segment 12, the vibration transmitted by the engine assembly 200 through the air intake pipe body 1 can be weakened.

[0068] Exemplarily, the telescopic pipe section 12 can be a bellows pipe.

[0069] Exemplarily, the first pipe section 11 has a length greater than that of the telescopic pipe section 12, and the second pipe section 13 has a length greater than that of the telescopic pipe section 12.

[0070] Exemplarily, the first pipe section 11 can have a length greater than that of the second pipe section 13. The first pipe section 11 can also have a length equal to that of the second pipe section 13. The first pipe section 11 can also have a length less than that of the second pipe section 13.

[0071] In the present application, the first pipe section 11 is exemplarily described as having a length greater than that of the second pipe section 13.

[0072] In some embodiments, the engine intake pipe 213 further comprises a plurality of pipe joints 3 connected to the first pipe section 11.

[0073] The plurality of pipe joints 3 are arranged on the engine intake pipe 213 to connect other components to the engine intake pipe 213, so as to meet other working requirements of the engine assembly 200 in addition to the air intake requirement of the engine assembly 200.

[0074] For example, the pipe joint 3 can be a CRV valve vent pipe joint for connecting to an intake manifold, so that high-pressure gas in the intake manifold enters the intake pipe body 1 after the engine assembly 200 stops running, thereby avoiding damage to the intake manifold caused by the high-pressure gas in the intake manifold.

[0075] The pipe joint 3 can also be a crankcase ventilation pipe joint 321 for connecting to a crankcase, so that water vapor generated by combustion and leaked fuel in the crankcase enter the intake pipe body 1 and then enter the combustion chamber 221 for combustion, thereby reducing fuel waste.

[0076] The pipe joint 3 can also be a fuel vapor emission pipe joint 322 for connecting to a fuel tank, so that fuel vapor enters the intake pipe body 1 and then enters the combustion chamber 221 for combustion, thereby avoiding excessive escape of fuel vapor into the air to increase fuel costs and pollute the air.

[0077] The pipe joint 3 can also be an engine ventilation pipe joint 323 for connecting to the crankcase, so that a large amount of oil gas in the crankcase is discharged outward, so that the air pressure in the crankcase is consistent with the air pressure outside the engine assembly 200, thereby balancing the internal air pressure of the engine assembly 200.

[0078] In some embodiments, the support 2 is connected to the first pipe section 11.

[0079] The first pipe section 11 is provided with a plurality of pipe joints 3, and the plurality of pipe joints 3 are communicated with the air inlet pipe body 1, so that the air inlet pipe body 1 at the position where the pipe joint 3 is arranged has poor strength, and the length of the first pipe section 11 is relatively longer than the lengths of the second pipe section 13 and the telescopic pipe section 12, so that the first pipe section 11 has poor anti-flat performance. The support 2 is connected to the first pipe section 11, so as to improve the anti-flat performance of the first pipe section 11.

[0080] In some embodiments, the number of supports 2 is multiple, and the multiple supports 2 are arranged at intervals along the extension direction of the air inlet pipe body 1. In this way, the multiple supports 2 are arranged at intervals along the extension direction of the air inlet pipe body 1, so as to support the air inlet pipe body 1 at multiple positions and improve the anti-flat performance of the air inlet pipe body 1.

[0081] In some embodiments, the first pipe section 11 and the second pipe section 13 are both provided with the support 2.

[0082] The supports 2 are arranged on the first pipe section 11 and the second pipe section 13, so as to improve the anti-flat performance of the first pipe section 11 and the second pipe section 13. In this way, the air inlet pipe body 1 has strong anti-flat performance.

[0083] For example, the number of supports 2 on the first pipe section 11 can be greater than the number of supports 2 on the second pipe section 13. The number of supports 2 on the first pipe section 11 can be equal to the number of supports 2 on the second pipe section 13. The number of supports 2 on the first pipe section 11 can be less than the number of supports 2 on the second pipe section 13. The present application is described by taking the number of supports 2 on the first pipe section 11 greater than the number of supports 2 on the second pipe section 13 as an example.

[0084] In some embodiments, the length of the air inlet pipe body 1 is positively correlated with the number of supports 2.

[0085] The longer the length of the air inlet pipe body 1, the poorer the anti-flat performance, and the number of supports 2 to be arranged also increases, so as to improve the anti-flat performance of the air inlet pipe body 1.

[0086] In some embodiments, the length of the air inlet pipe body 1 is positively correlated with the number of supports 2.

[0087] For example, the longer the air inlet pipe body 1, the more the number of supports 2; the shorter the air inlet pipe body 1, the less the number of supports 2.

[0088] In some embodiments, the plurality of pipe joints 3 comprises a first pipe joint 31 connected to the first pipe section 11 at an end thereof facing the telescopic pipe section 12, and a plurality of second pipe joints 32 connected to the first pipe section 11 at an end thereof facing the telescopic pipe section 12 and disposed diametrically opposite to the first pipe joint 31 along the intake pipe body 1.

[0089] The positions of the first pipe joint 31 and the plurality of second pipe joints 32 can facilitate the layout of the intake pipe body 1 and make the first pipe joint 31 and the plurality of second pipe joints 32 easy to connect, thereby facilitating the installation of the intake pipe body 1.

[0090] The first pipe joint 31 is a CRV valve breather pipe joint.

[0091] The plurality of second pipe joints 32 are respectively a crankcase ventilation pipe joint 321, an evaporative fuel emission pipe joint 322, and an engine ventilation pipe joint 323.

[0092] It should be noted that the positions and the number of the first pipe joint 31 and the plurality of pipe joints 3 can be adjusted according to the intake demand of the engine assembly 200 and the setting position of the engine intake pipe 213.

[0093] In some embodiments, the plurality of support members 2 comprises a first support member 21 connected to the first pipe section 11, the first support member 21 being located on a side of the first pipe joint 31 facing away from the telescopic pipe section 12 and between two of the plurality of second pipe joints 32.

[0094] Since the first pipe joint 31 and the plurality of second pipe joints 32 are in communication with the intake pipe body 1, the strength of the intake pipe body 1 at the positions near the pipe joints 3 is weak, so that the intake pipe body 1 near the pipe joints 3 is prone to being sucked flat. By arranging the first support member 21 near the pipe joints 3, when the intake pipe body 1 is sucked flat, the support member 21 can support the intake pipe body 1 and limit the expansion of the intake pipe body 1 in the second radial direction, thereby limiting the degree of the intake pipe body 1 being sucked flat in the first radial direction, and further improving the anti-sucking flat capability of the intake pipe body 1 near the pipe joints 3.

[0095] In some embodiments, the plurality of support members 2 comprises a second support member 22 connected to the first pipe section 11, the second support member 22 being located on a side of the first pipe joint 31 facing the telescopic pipe section 12 and on a side of the plurality of second pipe joints 32 facing the telescopic pipe section 12.

[0096] The telescopic pipe section 12 has telescopic function and is weaker in strength than the first pipe section 11 and the second pipe section 13, so that the air inlet pipe body 1 at the connection between the telescopic pipe section 12 and the first pipe section 11 is weaker in strength, and the first pipe joint 31 and the second pipe joint 32 are closer to the connection between the telescopic pipe section 12 and the first pipe section 11, so that the air inlet pipe body 1 at the connection between the telescopic pipe section 12 and the first pipe section 11 is easily sucked flat. The second support 22 is arranged between the telescopic pipe section 12 and the pipe joint 3, the support 22 can support the air inlet pipe body 1 and limit the outward expansion of the air inlet pipe body 1 in the second radial direction, so as to limit the degree of flatness of the air inlet pipe body 1 in the first radial direction, thereby enhancing the anti-flatness performance of the air inlet pipe body 1 between the telescopic pipe section 12 and the pipe joint 3.

[0097] In some embodiments, the plurality of supports 2 further comprises a third support 23, the third support 23 is connected to the first pipe section 11, the third support 23 is located on the side of the first pipe joint 31 away from the telescopic pipe section 12, and is located on the side of the plurality of second pipe joints 32 away from the telescopic pipe section 12.

[0098] The side of the first pipe joint 31 and the plurality of second pipe joints 32 away from the telescopic pipe section 12 has a long section of the first pipe section 11, so that the long section of the first pipe section 11 is easily sucked flat. The third support 23 is arranged on the side of the first pipe joint 31 and the plurality of second pipe joints 32 away from the telescopic pipe section 12, the support 23 can support the air inlet pipe body 1 and limit the outward expansion of the air inlet pipe body 1 in the second radial direction, so as to limit the degree of flatness of the air inlet pipe body 1 in the first radial direction, thereby further enhancing the anti-flatness performance of the first pipe section 11.

[0099] For example, the number of third supports 23 can be one. The number of third supports 23 can also be multiple, for example, the number of third supports 23 is two, three, four, five, six, seven, eight, nine, etc.

[0100] In some embodiments, the plurality of pipe joints 3 further comprises a connecting piece 33, the connecting piece 33 is connected to the second pipe section 13.

[0101] The connecting piece 33 is a cooling water pipe joint, the cooling water pipe joint is not communicated with the air inlet pipe body 1, and the cooling water pipe joint is used to provide a mounting point for the cooling water pipe.

[0102] In some embodiments, the plurality of supports 2 further comprises a fourth support 24, the fourth support 24 is connected to the second pipe section 13 and located on the side of the connecting piece 33 facing the telescopic pipe section 12.

[0103] The telescopic pipe section 12 has telescopic function and is weaker in strength than the first pipe section 11 and the second pipe section 13, so that the air inlet pipe body 1 at the connection between the telescopic pipe section 12 and the second pipe section 13 is weaker in strength, and the air inlet pipe body 1 at the connection between the telescopic pipe section 12 and the second pipe section 13 is easy to be sucked flat. The fourth support 24 is arranged between the telescopic pipe section 12 and the connecting piece 33 and in the vicinity of the connection between the telescopic pipe section 12 and the second pipe section 13, and the support 24 can support the air inlet pipe body 1, limit the outward expansion of the air inlet pipe body 1 in the second radial direction, limit the degree of the air inlet pipe body 1 being sucked flat in the first radial direction, and further improve the anti-sucking flat performance of the air inlet pipe body 1 between the connecting piece 33 and the telescopic pipe section 12.

[0104] In some embodiments, the plurality of supports 2 further comprises a fifth support 25, and the fifth support 25 is connected to the second pipe section 13 and located on the side of the connecting piece 33 away from the telescopic pipe section 12.

[0105] The fifth support 25 is arranged on the side of the connecting piece 33 away from the telescopic pipe section 12, and when the air inlet pipe body 1 on the side of the connecting piece 33 away from the telescopic pipe section 12 is sucked flat or expands, the support 25 can support the air inlet pipe body 1 on the side of the connecting piece 33 away from the telescopic pipe section 12, limit the outward expansion of the air inlet pipe body 1, make the part of the air inlet pipe body 1 being sucked flat quickly recover, and further improve the anti-sucking flat performance of the air inlet pipe body 1.

[0106] For example, the number of the fifth support 25 can be one. The number of the fifth support 25 can also be multiple, for example, the number of the fifth support 25 is two, three, four, five, six, seven, eight, nine, etc.

[0107] In some embodiments, the air inlet pipe body 1 comprises an air inlet end 14 and an air outlet end 15, and the engine air inlet pipe 213 further comprises two second clamps 4, one of the two second clamps 4 is clamped to the air inlet end 14, and the other of the two second clamps 4 is clamped to the air outlet end 15.

[0108] The air inlet end 14 of the air inlet pipe body 1 is connected to the air outlet of the air cleaner 211, and after the connection between the air inlet end 14 of the air inlet pipe body 1 and the air outlet of the air cleaner 211 is completed, one of the second clamps 4 is tightened to increase the connection strength between the air inlet end 14 of the air inlet pipe body 1 and the air outlet of the air cleaner 211, thereby improving the connection stability of the air inlet pipe body 1 and preventing the air inlet pipe body 1 from falling off.

[0109] The air outlet end 15 of the air inlet pipe body 1 is connected with the air inlet of the supercharger 212. When the air outlet end 15 of the air inlet pipe body 1 is connected with the supercharger 212, a second clamp 4 is tightened to increase the connection strength of the air outlet end 15 of the air inlet pipe body 1 and the air inlet of the supercharger 212, thereby improving the connection stability of the air inlet pipe body 1 and preventing the air inlet pipe body 1 from falling off.

[0110] For example, the air outlet end 15 of the air inlet pipe body 1 can be the end of the first pipe segment 11 facing away from the telescopic pipe segment 12, and the air inlet end 14 of the air inlet pipe body 1 can be the end of the second pipe segment 13 facing away from the telescopic pipe segment 12. Alternatively, the air outlet end 15 of the air inlet pipe body 1 can be the end of the second pipe segment 13 facing away from the telescopic pipe segment 12, and the air inlet end 14 of the air inlet pipe body 1 can be the end of the first pipe segment 11 facing away from the telescopic pipe segment 12.

[0111] For example, the air outlet end 15 of the air inlet pipe body 1 can be the end of the first pipe segment 11 facing away from the telescopic pipe segment 12, and the air inlet end 14 of the air inlet pipe body 1 can be the end of the second pipe segment 13 facing away from the telescopic pipe segment 12. Alternatively, the air outlet end 15 of the air inlet pipe body 1 can be the end of the second pipe segment 13 facing away from the telescopic pipe segment 12, and the air inlet end 14 of the air inlet pipe body 1 can be the end of the first pipe segment 11 facing away from the telescopic pipe segment 12.

[0112] In some embodiments, Figure 4 For Figure 3 For example, the air outlet end 15 of the air inlet pipe body 1 can be the end of the first pipe segment 11 facing away from the telescopic pipe segment 12, and the air inlet end 14 of the air inlet pipe body 1 can be the end of the second pipe segment 13 facing away from the telescopic pipe segment 12. Alternatively, the air outlet end 15 of the air inlet pipe body 1 can be the end of the second pipe segment 13 facing away from the telescopic pipe segment 12, and the air inlet end 14 of the air inlet pipe body 1 can be the end of the first pipe segment 11 facing away from the telescopic pipe segment 12. Figure 4 For example, the air outlet end 15 of the air inlet pipe body 1 can be the end of the first pipe segment 11 facing away from the telescopic pipe segment 12, and the air inlet end 14 of the air inlet pipe body 1 can be the end of the second pipe segment 13 facing away from the telescopic pipe segment 12. Alternatively, the air outlet end 15 of the air inlet pipe body 1 can be the end of the second pipe segment 13 facing away from the telescopic pipe segment 12, and the air inlet end 14 of the air inlet pipe body 1 can be the end of the first pipe segment 11 facing away from the telescopic pipe segment 12.

[0113] The at least part of the support member 2 is located in the limiting groove 16, so that the support member 2 is limited in the extension direction of the air inlet pipe body 1 by the limiting groove 16, and the sliding of the support member 2 in the extension direction of the air inlet pipe body 1 is limited, so as to avoid affecting the supporting effect of the air inlet pipe body 1 due to the sliding of the support member 2.

[0114] In some embodiments, the radial distance between the outer surface of the support member 2 and the inner surface of the support member 2 is a first distance, and the depth of the limiting groove 16 is greater than or equal to the first distance in the radial direction of the air inlet pipe body 1.

[0115] In this way, the depth of the limiting groove 16 in the radial direction of the air inlet pipe body 1 can be large, so as to improve the limiting effect of the limiting groove 16 on the support member 2.

[0116] In some embodiments, the outer surface of the support member 2 is located on the side of the outer surface of the air inlet pipe body 1 facing the inner surface of the air inlet pipe body 1.

[0117] In this way, the support 2 can be completely located in the limiting groove 16, so that the support 2 has a larger overlapping area with the inner wall surface of the limiting groove 16 in the axial direction of the air inlet pipe body 1, so as to improve the limiting effect of the limiting groove 16 on the support 2.

[0118] The outer surface of the support 2 is located between the outer surface and the inner surface of the air inlet pipe body 1, and the air inlet pipe body 1 shields the inner surface and the side surface of the support 2, so that the support 2 is semi-hiddenly arranged on the outer surface of the air inlet pipe body 1, thereby improving the appearance of the air inlet pipe body 1.

[0119] In some embodiments, please continue to refer to Figure 4 The air inlet pipe body 1 comprises the air inlet pipe body 1, the first limiting rib 18 connected to the air inlet pipe body 1 and extending in the circumferential direction of the air inlet pipe body 1, and the second limiting rib 19 connected to the air inlet pipe body 1 and extending in the circumferential direction of the air inlet pipe body 1, and the second limiting rib 19 is arranged in the extension direction of the air inlet pipe body 1 and spaced from the first limiting rib 18 to define the limiting groove 16.

[0120] The first limiting rib 18 and the second limiting rib 19 define the limiting groove 16, which can limit the support 2, and the first limiting rib 18 and the second limiting rib 19 can also enhance the structural strength of the air inlet pipe body 1, so that the first limiting rib 18, the second limiting rib 19 and the support 2 cooperate to enhance the anti-flattening capability of the air inlet pipe body 1.

[0121] The side surface of the first limiting rib 18 opposite to the air inlet pipe body 1, the side surface of the second limiting rib 19 opposite to the air inlet pipe body 1 and the outer surface of the air inlet pipe body 1 are all the outer surface of the air inlet pipe body 1.

[0122] In some embodiments, please continue to refer to Figure 3 The engine air inlet pipe 213 further comprises a reinforcing rib 1A connected to the outer surface of the air inlet pipe body 1.

[0123] The reinforcing rib 1A is arranged on the outer surface of the air inlet pipe body 1, and the reinforcing rib 1A on the surface of the air inlet pipe body 1 can increase the structural strength of the air inlet pipe body 1, so as to improve the anti-flattening performance of the air inlet pipe body 1.

[0124] In addition, the reinforcing rib 1A cooperates with the support 2 to further improve the anti-flattening performance of the air inlet pipe body 1.

[0125] In some embodiments, the reinforcing rib 1A extends in the extension direction of the air inlet pipe body 1.

[0126] In some other embodiments, the reinforcing rib 1A extends in the circumferential direction of the air inlet pipe body 1.

[0127] In some other embodiments, the number of the reinforcing ribs 1A is multiple, and part of the reinforcing ribs 1A in the multiple reinforcing ribs 1A extend along the extension direction of the air inlet pipe body 1, and another part of the reinforcing ribs 1A extend along the circumferential direction of the air inlet pipe body 1.

[0128] In some embodiments, the wall thickness of the air inlet pipe body 1 is greater than or equal to 2.5 mm and less than or equal to 7.5 mm.

[0129] For example, the thickness of the air inlet pipe body 1 can be 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, 7.0 mm, or 7.5 mm.

[0130] In some embodiments, the support 2 and the air inlet pipe body 1 are in a split structure.

[0131] The support 2 and the air inlet pipe body 1 can be separated, and when one of them is damaged, the damaged accessory can be removed and replaced, so that the support 2 or the air inlet pipe body 1 can be recycled, thereby reducing the economic cost.

[0132] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An engine intake pipe characterized by, The engine intake pipe comprises: An intake pipe body (1); A support member (2) provided separately on the outside of the intake pipe body (1); the support member (2) extends along the circumference of the intake pipe body (1).

2. The engine intake pipe according to claim 1, characterized by, The support member (2) comprises a support ring, and the intake pipe body (1) is arranged in the support ring. Alternatively, the support member (2) comprises a first clamping hoop, and the first clamping hoop is clamped to the intake pipe body (1).

3. The engine intake pipe of claim 1, wherein The support member (2) is one of a metal member, a hard plastic member, and a hard rubber member.

4. The engine intake pipe of claim 1, wherein The cross section of the support member (2) is one of a circular shape, a square shape, and an oval shape, and the cross section is perpendicular to the end surface of the support member (2) in the extension direction of the intake pipe body (1).

5. The engine intake pipe of claim 1, wherein The support member (2) is in interference fit with the intake pipe body (1).

6. The engine intake pipe according to any one of claims 1-5, characterized in that, The intake pipe body (1) is provided with a limiting groove (16), the limiting groove (16) is recessed from the outer surface to the inner surface of the intake pipe body (1), and extends along the circumference of the intake pipe body (1); at least part of the support member (2) is located in the limiting groove (16).

7. The engine intake pipe according to any one of claims 1 to 5, characterized by, The number of the support members (2) is multiple, and multiple support members (2) are arranged at intervals along the extension direction of the intake pipe body (1).

8. The engine intake pipe of claim 7, wherein The length of the intake pipe body (1) is positively correlated with the number of the support members (2).

9. The engine intake pipe of claim 6, wherein The radial distance between the outer surface of the support member (2) and the inner surface of the support member (2) is a first distance; Along the radial direction of the intake pipe body (1), the depth of the limiting groove (16) is greater than or equal to the first distance.

10. The engine intake pipe according to any one of claims 1-5, characterized by, Further comprising a reinforcing rib (1A) connected to the outer surface of the intake pipe body (1); The reinforcing rib (1A) extends along the extension direction of the intake pipe body (1), and / or the reinforcing rib (1A) extends along the circumference of the intake pipe body (1).

11. An air intake system characterized by, The engine intake pipe (213) according to any one of claims 1-10 is included.

12. The air intake system of claim 11, wherein, Further comprising: An air filter (211); A supercharger (212); One end of the intake pipe body (1) of the engine intake pipe (213) is in communication with the outlet of the air filter (211), and the other end of the intake pipe body (1) is in communication with the inlet of the supercharger (212).

13. An engine assembly characterized by, The intake system (210) according to any one of claims 11-12 is included. The intake system (210) according to any one of claims 11-12 is included.

14. A vehicle characterized by comprising: A vehicle body (100); The engine assembly (200) according to claim 13 is arranged in the vehicle body (100). ​

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