Snorkel, intake and exhaust systems and vehicles

Abstract

This utility model discloses a wading hood, an intake and exhaust system, and a vehicle, belonging to the field of vehicle technology. The wading hood is suitable for installation on a vehicle and is higher than the vehicle's exhaust pipe outlet. The wading hood includes an intake hood and an exhaust hood. The intake hood is suitable for connecting with the vehicle's intake system to increase the vehicle's intake height. The exhaust hood is suitable for selectively connecting with the vehicle's exhaust system. When the exhaust hood is connected to the exhaust system, it can increase the vehicle's exhaust height. When the exhaust hood is not connected to the exhaust system, it can reduce exhaust gas resistance. The wading hood can meet the dual operating conditions of normal vehicle driving and wading mode, significantly improving the reliability and safety of the intake and exhaust systems in complex wading environments.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and more specifically, to a snorkel, an intake and exhaust system, and a vehicle. Background Technology

[0002] In related technologies, a snorkel is an air intake pipe modification that is installed to improve a vehicle's wading ability. Its core function is to significantly raise the engine air intake from the original low position of the vehicle to a higher position at the front of the vehicle. When the vehicle needs to wade through water, the snorkel can effectively prevent water from being sucked into the engine through the air intake.

[0003] However, if the engine power is insufficient or the vehicle is turned off while wading through water, water can easily flow back into the engine through the exhaust pipe of the exhaust system, causing engine damage and making the vehicle less safe for wading. Utility Model Content

[0004] This invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, this invention proposes a wading snorkel that can improve the wading safety of vehicles.

[0005] This utility model also proposes an air intake and exhaust system having the above-mentioned wading throat.

[0006] This utility model also proposes a vehicle having the above-mentioned intake and exhaust system.

[0007] According to an embodiment of the present invention, the snorkel is adapted to be installed on a vehicle and is higher than the exhaust pipe outlet of the vehicle. The snorkel includes: an intake pipe adapted to communicate with the vehicle's intake system; and an exhaust pipe adapted to selectively communicate with the vehicle's exhaust system.

[0008] According to an embodiment of the present invention, the wading hood includes an intake hood and an exhaust hood. The intake hood is connected to the intake system to increase the vehicle's intake height. The exhaust hood is selectively connected to the exhaust system. When the exhaust hood is connected to the exhaust system, it can increase the vehicle's exhaust height. When the exhaust hood is not connected to the exhaust system, it can reduce exhaust gas resistance. The wading hood can meet the dual operating conditions of normal vehicle driving and wading mode, significantly improving the reliability and safety of the intake and exhaust systems in complex wading environments.

[0009] According to some embodiments of the present invention, the exhaust throat pipe is inserted and fixed to the intake throat pipe.

[0010] In the above embodiments, the exhaust pipe is inserted and fixed to the intake pipe to improve the integration of the wading hose and facilitate the assembly and fixing of the wading hose. At the same time, at least a portion of the exhaust pipe is located inside the intake pipe to reduce the wind resistance of the wading hose.

[0011] According to some embodiments of the present invention, at least a portion of the exhaust throat pipe is covered with a heat insulation layer inside the intake throat pipe.

[0012] In the above embodiments, the exhaust pipe is at least partially covered with a heat insulation layer inside the intake pipe to reduce the heat of the exhaust gas from being transferred to the air inside the intake pipe through the exhaust pipe, thereby reducing the intake temperature of the intake pipe and preventing the air from expanding due to heat, which would affect the intake efficiency. It can also reduce the risk of engine knocking and reduce the engine's thermal load.

[0013] According to some embodiments of the present invention, the air intake throat has an air inlet and an air outlet. The air inlet is formed in the wall of the air intake throat, and the air outlet is located at the lower end of the air intake throat and is adapted to communicate with the air intake system.

[0014] In the above embodiment, the air intake inlet is located on the wall of the air intake throat. The air intake inlet can penetrate the wall of the air intake throat in the radial direction. The air intake inlet located on the wall can reduce the direct flow of rainwater into the air intake throat, thus reducing the risk of water entering the air intake throat. The air intake outlet is located at the lower end of the air intake throat, with the air intake inlet higher than the air intake outlet, to increase the vehicle's wading height.

[0015] According to some embodiments of the present invention, there are multiple air intakes, and the multiple air intakes are arranged at intervals along the circumferential direction of the air intake throat.

[0016] In the above embodiments, by setting multiple air inlets arranged at intervals, the air intake resistance of the air intake throat is reduced and the air intake volume of the air intake throat is increased.

[0017] According to some embodiments of the present invention, the air inlet extends along the axial direction of the air intake throat.

[0018] In the above embodiments, the air intake extends along the axial direction of the air intake throat to increase the flow area of ​​the air intake, increase the air intake volume of the air intake throat, and reduce the air intake resistance of the air intake throat.

[0019] According to some embodiments of the present invention, the exhaust throat pipe includes: an exhaust inlet pipe section, which is disposed between the air inlet and the air outlet in the air intake throat pipe, and is selectively connected to the exhaust system through a first valve; an exhaust outlet pipe section, which is fixedly connected to the upper end of the air intake throat pipe; and an exhaust connecting pipe section, which is disposed inside the air intake throat pipe and connects the exhaust inlet pipe section and the exhaust outlet pipe section, wherein the outer diameter of the exhaust connecting pipe section is smaller than the inner diameter of the air intake throat pipe.

[0020] In the above embodiments, the exhaust throat pipe includes an exhaust inlet pipe section, an exhaust connecting pipe section and an exhaust outlet pipe section connected in sequence. The exhaust inlet pipe section passes through the intake throat pipe between the intake inlet and the intake outlet. The outer diameter of the exhaust connecting pipe section is smaller than the inner diameter of the intake throat pipe. The exhaust throat pipe has a simple structure, and the intake and exhaust of the water wading throat are smooth.

[0021] According to some embodiments of the present invention, the wading hose further includes a protective cover, which is connected above the exhaust outlet pipe section, and an exhaust outlet is formed between the protective cover and the exhaust outlet pipe section.

[0022] In the above embodiments, the protective cover can be connected above the exhaust outlet pipe section. The protective cover can prevent external rainwater from entering the exhaust throat pipe and reduce the risk of water ingress into the exhaust system.

[0023] An intake and exhaust system according to another embodiment of the present invention includes: a wading hood, wherein the wading hood is the aforementioned wading hood; an intake system, wherein the intake hood pipe is connected to the intake system; and an exhaust system, wherein the exhaust system includes an after-treatment device and a muffler connected to each other, wherein a second valve is provided at the exhaust pipe outlet of the muffler, and the exhaust hood pipe is selectively connected to the after-treatment device.

[0024] According to the present invention, the intake and exhaust system includes an intake vent pipe and an exhaust vent pipe. The intake vent pipe is connected to the intake system to increase the vehicle's intake height. The exhaust vent pipe is selectively connected to the exhaust system. When the exhaust vent pipe is connected to the exhaust system, it can increase the vehicle's exhaust height. When the exhaust vent pipe is not connected to the exhaust system, it can reduce exhaust gas resistance. The vent pipe can meet the dual operating conditions of normal vehicle driving and wading mode, significantly improving the reliability and safety of the intake and exhaust system in complex wading environments.

[0025] A vehicle according to another embodiment of the present invention includes the above-described intake and exhaust system.

[0026] According to an embodiment of the present invention, the vehicle's snorkel includes an intake snorkel and an exhaust snorkel. The intake snorkel is connected to the intake system to increase the vehicle's intake height. The exhaust snorkel is selectively connected to the exhaust system. When the exhaust snorkel is connected to the exhaust system, it can increase the vehicle's exhaust height. When the exhaust snorkel is not connected to the exhaust system, it can reduce exhaust gas resistance. The snorkel can meet the dual operating conditions of normal vehicle driving and wading mode, significantly improving the reliability and safety of the intake and exhaust system in complex wading environments.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a vehicle according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the intake and exhaust system and engine according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the wading hose according to an embodiment of the present invention.

[0029] Figure label: Air intake throttle 1; air intake 11; air intake outlet 12; 2. Exhaust pipe 2; heat insulation layer 21; exhaust inlet pipe section 22; exhaust outlet pipe section 23; exhaust connection pipe section 24; Protective cover 3; Cover body 31; Support frame 32; Exhaust outlet 33; First valve 4; 10 wading hoses; Intake system 20; air filter 201, compressor turbine 202; intercooler 203; Exhaust system 30; exhaust turbine 301; after-treatment device 302; muffler 303; exhaust pipe outlet 3031; second valve 3032; Intake and exhaust system 100, engine 200; vehicle 1000. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In related technologies, a snorkel is an intake pipe modification added to improve a vehicle's wading ability. Its core function is to significantly raise the engine air intake from its original low position to a higher position at the front of the vehicle. When the vehicle needs to wade through water, the snorkel effectively prevents water from being sucked into the engine through the air intake. However, when the vehicle is wading through deep water, or when the engine power is insufficient or the vehicle is turned off, water can easily flow back into the engine through the exhaust pipes of the exhaust system, causing engine damage and compromising the vehicle's wading safety.

[0035] The following describes in detail, with reference to the accompanying drawings, the wading vent 10, the intake and exhaust system 100, and the vehicle 1000 according to embodiments of the present invention.

[0036] Reference Figures 1-3 As shown, the snorkel 10 is adapted to be installed on the vehicle 1000, and the snorkel 10 is higher than the exhaust pipe outlet 3031 of the vehicle 1000. The snorkel 10 includes an intake snorkel 1 and an exhaust snorkel 2. The intake snorkel 1 is adapted to be connected to the intake system 20 of the vehicle 1000, and the exhaust snorkel 2 is adapted to be selectively connected to the exhaust system 30 of the vehicle 1000.

[0037] Specifically, the intake system 20 of the vehicle 1000 can be used to supply air to the engine 200, and the exhaust system 30 has an exhaust pipe. The exhaust system 30 discharges the exhaust gas produced by the combustion of the engine 200 into the atmosphere through the exhaust pipe outlet 3031. The exhaust pipe outlet 3031 is usually located at the bottom of the rear of the vehicle. The snorkel 10 is installed in the upper area of ​​the vehicle 1000. For example, the snorkel 10 can be installed near the A-pillar of the vehicle 1000. The snorkel 10 is higher than the exhaust pipe outlet 3031. The snorkel 10 can raise the height of the intake and exhaust positions of the vehicle 1000, thereby improving the wading height and safety of the vehicle 1000.

[0038] The air intake pipe 1 of the snorkel 10 is connected to the air intake system 20. The air intake system 20 can draw in air through the air intake pipe 1. Since the snorkel 10 is relatively high, the air intake pipe 1 can raise the height of the air intake position of the vehicle 1000. When the vehicle 1000 is wading through water, water is less likely to enter the air intake pipe 1, thereby reducing the risk of water entering the air intake system 20 and the engine 200 and increasing the wading height of the vehicle 1000.

[0039] The exhaust pipe 2 of the snorkel 10 is selectively connected to the exhaust system 30 of the vehicle 1000. When the vehicle 1000 is wading at a low depth (e.g., the water does not submerge the exhaust pipe outlet 3031) or is not wading, the exhaust pipe 2 may not be connected to the exhaust system 30, and the exhaust gas will not pass through the exhaust pipe 2. The exhaust system 30 can discharge the exhaust gas through the exhaust pipe outlet 3031 to reduce the exhaust gas emission resistance.

[0040] When the wading depth of vehicle 1000 is high (e.g., water submerges the exhaust pipe outlet 3031), the exhaust vent pipe 2 can be connected to the exhaust system 30. The exhaust gas does not pass through the exhaust pipe outlet 3031 of the exhaust system 30. The exhaust system 30 can discharge the exhaust gas through the exhaust vent pipe 2. Because the wading vent 10 is high, water flow is unlikely to backflow into the exhaust system 30 through the exhaust vent pipe 2, thereby reducing the risk of water entering the exhaust system 30 and engine 200 and increasing the wading depth of vehicle 1000.

[0041] According to the embodiment of the present invention, the wading hood 10 includes an intake hood 1 and an exhaust hood 2. The intake hood 1 is connected to the intake system 20 to increase the intake height of the vehicle 1000. The exhaust hood 2 is selectively connected to the exhaust system 30. When the exhaust hood 2 is connected to the exhaust system 30, the exhaust height of the vehicle 1000 can be increased. When the exhaust hood 2 is not connected to the exhaust system 30, the exhaust resistance can be reduced. The wading hood 10 can meet the dual operating conditions of the vehicle 1000 in normal driving and wading mode, significantly improving the reliability and safety of the intake system 20 and the exhaust system 30 in complex wading environments.

[0042] In some embodiments of this utility model, reference is made to Figure 3 As shown, the exhaust pipe 2 is inserted and fixed to the intake pipe 1.

[0043] Specifically, in the construction of the wading hose 10, the air intake hose 1 and the exhaust hose 2 can be fixedly connected by welding, screwing or other means. The exhaust hose 2 and the air intake hose 1 can be integrated into one unit. The exhaust hose 2 is inserted and fixed to the air intake hose 1. A part of the exhaust hose 2 can be located inside the air intake hose 1. The air passages in the exhaust hose 2 and the air intake hose 1 are not connected. That is, the exhaust hose 2 discharges exhaust gas to the outside of the air intake hose 1 to avoid mutual interference between air intake and exhaust.

[0044] In the above embodiment, the exhaust pipe 2 is inserted and fixed to the air intake pipe 1 to improve the integration of the wading hose 10 and facilitate the assembly and fixing of the wading hose 10. At the same time, at least a portion of the exhaust pipe 2 is located inside the air intake pipe 1 to reduce the wind resistance of the wading hose 10.

[0045] In some other embodiments of this utility model (not shown in the figure), the exhaust pipe 2 and the intake pipe 1 are connected side by side, or the exhaust pipe 2 and the intake pipe 1 are respectively located on the left and right sides of the vehicle 1000.

[0046] In some embodiments of this utility model, reference is made to Figure 3 As shown, the exhaust pipe 2 is at least partially covered with a heat insulation layer 21 inside the intake pipe 1.

[0047] Specifically, the heat insulation layer 21 can be a heat insulation sleeve structure made of at least one heat insulation material selected from aluminum foil, ceramic fiber, and fiberglass mesh. The part of the exhaust pipe 2 inside the intake pipe 1 can be fully or partially covered by the heat insulation layer 21, which can insulate the heat of the exhaust pipe 2.

[0048] In the above embodiment, the exhaust pipe 2 is at least partially covered with a heat insulation layer 21 inside the intake pipe 1 to reduce the heat of the exhaust gas from being transferred to the air inside the intake pipe 1 through the exhaust pipe 2, thereby reducing the intake temperature of the intake pipe 1 to avoid the air from expanding due to heat and affecting the intake efficiency. It can also reduce the risk of knocking in the engine 200 and reduce the thermal load of the engine 200.

[0049] In some embodiments of this utility model, reference is made to Figure 3 As shown, the intake throat 1 has an intake inlet 11 and an intake outlet 12. The intake inlet 11 is opened on the pipe wall of the intake throat 1, and the intake outlet 12 is located at the lower end of the intake throat 1 and is adapted to communicate with the intake system 20.

[0050] Specifically, when the intake system 20 draws in air through the intake throat 1, air can enter the intake throat 1 through the intake inlet 11, then flow into the intake system 20 through the intake outlet 12, and finally enter the engine 200 through the intake system 20.

[0051] In the above embodiment, the air intake 11 is formed in the wall of the air intake throat 1. The air intake 11 can penetrate the wall of the air intake throat 1 in the radial direction. The air intake 11 located on the wall can reduce the direct flow of rainwater into the air intake throat 1, thus reducing the risk of water entering the air intake throat 1. The air intake outlet 12 is located at the lower end of the air intake throat 1, that is, the air intake 11 is higher than the air intake outlet 12, so as to increase the wading height of the vehicle 1000.

[0052] In some embodiments of this utility model, reference is made to Figure 3 As shown, there are multiple air intakes 11, which are arranged at intervals along the circumferential direction of the air intake throat 1.

[0053] Specifically, the number of air intake inlets 11 can be two, three, five, ten, etc. Multiple air intake inlets 11 can be arranged at intervals along the circumferential direction of the air intake throat 1, so as to reduce the air intake resistance of the air intake throat 1 and increase the air intake volume of the air intake throat 1 by setting multiple air intake inlets 11.

[0054] In some embodiments, a plurality of air intakes 11 are arranged at equal angular intervals along the circumferential direction of the air intake throat 1, that is, the included angle formed between any two adjacent air intakes 11 is equal. For example, the number of air intakes 11 is three, and the included angle formed between any two adjacent air intakes 11 is 120°. Another example is that the number of air intakes 11 is five, and the included angle formed between any two adjacent air intakes 11 is 72°.

[0055] In the above embodiments, multiple air inlets 11 are arranged at equal angular intervals along the circumferential direction of the air intake throat 1, thereby making the air intake of the air intake throat 1 uniform at different positions in the circumferential direction, reducing the turbulence of air in the air intake throat 1, and improving the air intake smoothness of the air intake throat 1.

[0056] In some embodiments of this utility model, reference is made to Figure 3 As shown, the air inlet 11 extends along the axial direction of the air intake throat 1.

[0057] Specifically, the axial direction of the intake manifold 1 can be the direction of gravity, i.e. Figure 3 In the vertical direction, the air inlet 11 extends along the axial direction of the air intake throat 1. The air inlet 11 can form a long strip-shaped inlet structure to increase the flow area of ​​the air inlet 11, increase the air intake volume of the air intake throat 1, and reduce the air intake resistance of the air intake throat 1.

[0058] In some embodiments of this utility model, reference is made to Figure 2 and 3As shown, the exhaust throat pipe 2 includes: an exhaust inlet pipe section 22, an exhaust outlet pipe section 23, and an exhaust connecting pipe section 24. The exhaust inlet pipe section 22 passes through the intake throat pipe 1 between the intake inlet 11 and the intake outlet 12. The exhaust inlet pipe section 22 is selectively connected to the exhaust system 30 through the first valve 4. The exhaust outlet pipe section 23 is fixedly connected to the upper end of the intake throat pipe 1. The exhaust connecting pipe section 24 is located inside the intake throat pipe 1 and connects the exhaust inlet pipe section 22 and the exhaust outlet pipe section 23. The outer diameter of the exhaust connecting pipe section 24 is smaller than the inner diameter of the intake throat pipe 1.

[0059] Specifically, when the exhaust system 30 exhausts gas through the exhaust throat pipe 2, the exhaust gas flows from the exhaust system 30 into the exhaust inlet pipe section 22, then enters the exhaust outlet pipe section 23 through the exhaust connection pipe section 24, and finally is discharged to the atmosphere through the exhaust outlet pipe section 23.

[0060] The exhaust inlet pipe section 22 passes through the intake throat 1 between the intake inlet 11 and the intake outlet 12 to prevent the exhaust throat 2 from affecting the intake and exhaust of the intake throat 1. The exhaust inlet pipe section 22 is selectively connected to the exhaust system 30 through the first valve 4. That is, when the first valve 4 is open, the exhaust inlet pipe section 22 is connected to the exhaust system 30 through the first valve 4, and the exhaust gas in the exhaust system 30 can enter the exhaust inlet pipe section 22. When the first valve 4 is closed, the exhaust inlet pipe section 22 is not connected to the exhaust system 30, and the exhaust gas in the exhaust system 30 can be discharged through the exhaust pipe outlet 3031. The first valve 4 can be a solenoid valve, a pneumatic valve, or a manual valve, etc. The first valve 4 can be installed at the exhaust inlet pipe section 22, or it can be installed in the connecting pipe between the exhaust inlet pipe section 22 and the exhaust system 30.

[0061] The exhaust outlet pipe section 23 is fixedly connected to the upper end of the intake throat pipe 1, allowing exhaust gas to be discharged upwards from the upper end of the intake throat pipe 1. In the direction away from the exhaust connecting pipe section 24, i.e., from bottom to top, the inner diameter of the exhaust outlet pipe section 23 gradually increases; that is, the exhaust outlet pipe section 23 has a flared structure with a smaller bottom and a larger top, to increase the outlet flow area of ​​the exhaust outlet pipe section 23 and improve the smoothness of exhaust gas discharge. Furthermore, the exhaust outlet pipe section 23 can be welded and sealed to the upper inner wall of the intake throat pipe 1 to prevent exhaust gas from entering the intake throat pipe 1.

[0062] An exhaust connection pipe section 24 is located inside the intake throat pipe 1, connecting the exhaust inlet pipe section 22 and the exhaust outlet pipe section 23. The outer diameter of the exhaust connection pipe section 24 is smaller than the inner diameter of the intake throat pipe 1, meaning there is a gap between the exhaust connection pipe section 24 and the intake throat pipe 1 to ensure unobstructed airflow between the intake inlet 11 and the intake outlet 12 of the intake throat pipe 1. The axis of the exhaust connection pipe section 24 can be collinear with the axis of the intake throat pipe 1, thus aligning the radial gap between the exhaust connection pipe section 24 and the intake throat pipe 1, reducing turbulence in the intake throat pipe 1 and improving intake smoothness.

[0063] In the above embodiment, the exhaust throat pipe 2 includes an exhaust inlet pipe section 22, an exhaust connecting pipe section 24 and an exhaust outlet pipe section 23 connected in sequence. The exhaust inlet pipe section 22 passes through the intake throat pipe 1 between the intake inlet 11 and the intake outlet 12. The outer diameter of the exhaust connecting pipe section 24 is smaller than the inner diameter of the intake throat pipe 1. The exhaust throat pipe 2 has a simple structure, and the intake and exhaust of the wading throat 10 are smooth.

[0064] In some embodiments of this utility model, reference is made to Figure 3 As shown, the wading hose 10 also includes a protective cover 3, which is connected above the exhaust outlet pipe section 23, and an exhaust outlet 33 is formed between the protective cover 3 and the exhaust outlet pipe section 23.

[0065] Specifically, the protective cover 3 may include a cover body 31 and a support frame 32. The cover body 31 may be an umbrella-shaped structure that is smaller at the top and larger at the bottom to discharge rainwater to the outside of the exhaust outlet pipe section 23. The support frame 32 may be connected between the cover body 31 and the exhaust outlet pipe section 23. An exhaust outlet 33 is formed between the support frame 32, the cover body 31 and the exhaust outlet pipe section 23, and the exhaust gas in the exhaust pipe 2 can be discharged through the exhaust outlet 33.

[0066] In the above embodiment, the protective cover 3 can be connected above the exhaust outlet pipe section 23. The protective cover 3 can prevent external rainwater from entering the exhaust throat pipe 2 and reduce the risk of water ingress into the exhaust system 30.

[0067] Reference Figures 1-3 As shown, the intake and exhaust system 100 according to another embodiment of the present invention includes: an intake system 20, an exhaust system 30 and a wading hose 10 as described in the above embodiment. The intake hose 1 is connected to the intake system 20. The exhaust system 30 includes an after-treatment device 302 and a muffler 303 that are connected to each other. A second valve 3032 is provided at the exhaust pipe outlet 3031 of the muffler 303. The exhaust hose 2 is selectively connected to the after-treatment device 302.

[0068] Specifically, the intake system 20 may include an air filter 201, a compressor turbine 202, and an intercooler 203 connected in sequence. The air filter 201 is connected to the intake manifold 1, and the intercooler 203 is connected to the engine 200. When the engine 200 takes in air, the air enters the air filter 201 through the intake manifold 1, is filtered, is then compressed by the compressor turbine 202, and is cooled by the intercooler 203 before entering the engine 200 to participate in combustion and do power.

[0069] The exhaust system 30 may include an exhaust turbine 301, an aftertreatment device 302 and a muffler 303 connected in sequence. The exhaust turbine 301 is connected to the engine 200. The aftertreatment device 302 may include exhaust gas purification devices such as a particulate filter and a three-way catalytic converter. A second valve 3032 is provided at the exhaust pipe outlet 3031 of the muffler 303. The exhaust turbine 301 is drivenly connected to the compressor turbine 202 and is constructed as a turbocharger.

[0070] When the second valve 3032 is open and the exhaust pipe 2 is not connected to the aftertreatment device 302, the exhaust gas generated by the engine 200 passes through the exhaust turbine 301 and drives the exhaust turbine 301 to rotate. Then, the exhaust gas is purified by the aftertreatment device 302 and finally discharged through the exhaust pipe outlet 3031 of the muffler 303. This ensures smooth exhaust of the vehicle 1000 and reduces exhaust noise when the vehicle 1000 is not in water or is driving normally with a low wading depth.

[0071] When the second valve 3032 is closed and the exhaust pipe 2 is connected to the aftertreatment device 302, the exhaust gas generated by the engine 200 passes through the exhaust turbine 301 and drives the exhaust turbine 301 to rotate. Then, the exhaust gas is purified by the aftertreatment device 302 and finally discharged through the exhaust pipe 2. This is to prevent water from flowing back into the exhaust system 30 when the vehicle 1000 is in wading mode by closing the second valve 3032 and to exhaust the exhaust gas at a high position through the exhaust pipe 2.

[0072] It should be noted that the second valve 3032 can be a solenoid valve, a pneumatic valve, or a manual valve, etc., and the function of the second valve 3032 can also be replaced by manually disassembling and blocking it at the exhaust pipe outlet 3031.

[0073] According to the embodiment of the present utility model, the intake and exhaust system 100 includes an intake vent 10 and an exhaust vent 2. The intake vent 1 is connected to the intake system 20 to increase the intake height of the vehicle 1000. The exhaust vent 2 is selectively connected to the exhaust system 30. When the exhaust vent 2 is connected to the exhaust system 30, the exhaust height of the vehicle 1000 can be increased. When the exhaust vent 2 is not connected to the exhaust system 30, the exhaust resistance can be reduced. The vent 10 can meet the dual operating conditions of the vehicle 1000 in normal driving and wading mode, significantly improving the reliability and safety of the intake and exhaust system 100 in complex wading environments.

[0074] In some embodiments of this utility model, the intake and exhaust system 100 further includes a water level sensor and a controller. The controller is communicatively connected to the water level sensor, the first valve 4, and the second valve 3032, respectively. The water level sensor can be installed at the bottom of the vehicle 1000 and is used to monitor the water level of the vehicle 1000.

[0075] When the water level of vehicle 1000 is greater than or equal to the height of the exhaust pipe outlet 3031, the controller can control the first valve 4 to open and the second valve 3032 to close, so that the exhaust system 30 can discharge exhaust gas through the exhaust pipe 2 and prevent water from flowing back from the exhaust pipe outlet 3031 to the exhaust system 30. When vehicle 1000 is wading through water, even if the engine 200 is turned off, there will be no problem of water flowing back into the exhaust system 30 and the engine 200, thus improving the wading safety of vehicle 1000.

[0076] When the water level of vehicle 1000 is lower than the height of the exhaust pipe outlet 3031, the controller can control the first valve 4 to close and the second valve 3032 to open, so that the exhaust system 30 can normally discharge exhaust gas through the exhaust pipe outlet 3031 of the muffler 303.

[0077] According to the embodiment of the present utility model, the intake and exhaust system 100 has an integrated intake and exhaust function. When in wading conditions, the second valve 3032 can be actively closed and the first valve 4 can be opened. After the second valve 3032 is closed, it has a waterproof backflow function. After the first valve 4 is opened, the exhaust system 30 can achieve high-level bypass exhaust, which can avoid sealing failure, ensure the directional diversion of exhaust gas and isolate water ingress, and realize dynamic switching of dual exhaust paths.

[0078] Reference Figures 1-3 As shown, a vehicle 1000 according to another embodiment of the present invention includes the intake and exhaust system 100 of the above embodiment.

[0079] According to an embodiment of the present invention, the vehicle 1000 has a wading hood 10 including an intake hood 1 and an exhaust hood 2. The intake hood 1 is connected to the intake system 20 to increase the intake height of the vehicle 1000. The exhaust hood 2 is selectively connected to the exhaust system 30. When the exhaust hood 2 is connected to the exhaust system 30, the exhaust height of the vehicle 1000 can be increased. When the exhaust hood 2 is not connected to the exhaust system 30, the exhaust resistance can be reduced. The wading hood 10 can meet the dual operating conditions of the vehicle 1000 in normal driving and wading mode, significantly improving the reliability and safety of the intake and exhaust system 100 in complex wading environments.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0081] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A wading throat characterized by, The snorkel is adapted to be installed on a vehicle, and the snorkel is higher than the exhaust pipe outlet (3031) of the vehicle. The snorkel includes: An intake hood (1) is adapted to communicate with the vehicle's intake system (20); An exhaust vent (2) is adapted to be selectively connected to the vehicle's exhaust system (30).

2. The wading hose according to claim 1, characterized in that, The exhaust pipe (2) is inserted and fixed to the intake pipe (1).

3. The wading throat of claim 2, wherein, The exhaust pipe (2) is at least partially covered with a heat insulation layer (21) inside the intake pipe (1).

4. The wading hose according to claim 2, characterized in that, The intake duct (1) has an intake inlet (11) and an intake outlet (12). The intake inlet (11) is located on the wall of the intake duct (1), and the intake outlet (12) is located at the lower end of the intake duct (1) and is adapted to communicate with the intake system (20).

5. The wading throat of claim 4, wherein, The number of air inlets (11) is multiple, and the multiple air inlets (11) are arranged at intervals along the circumferential direction of the air intake throat (1).

6. The wading throat of claim 5, wherein, The air inlet (11) extends along the axial direction of the air intake throat (1).

7. A wading throat according to any one of claims 4-6, characterised in that, The exhaust pipe (2) includes: An exhaust inlet pipe section (22) is provided between the air inlet (11) and the air outlet (12) in the air intake throat (1), and the exhaust inlet pipe section (22) is selectively connected to the exhaust system (30) through a first valve (4); The exhaust outlet pipe section (23) is fixedly connected to the upper end of the intake throat pipe (1); An exhaust connection pipe section (24) is provided inside the intake throat pipe (1) and connects the exhaust inlet pipe section (22) and the exhaust outlet pipe section (23). The outer diameter of the exhaust connection pipe section (24) is smaller than the inner diameter of the intake throat pipe (1).

8. The wading throat of claim 7, wherein, The wading hose also includes a protective cover (3), which is connected above the exhaust outlet pipe section (23), and an exhaust outlet (33) is formed between the protective cover (3) and the exhaust outlet pipe section (23).

9. An air intake and exhaust system characterized by, include: A wading hose, wherein the wading hose is the wading hose according to any one of claims 1-8; An intake system (20) is provided, wherein the intake throat (1) is connected to the intake system (20); The exhaust system (30) includes an after-treatment device (302) and a muffler (303) that are interconnected. A second valve (3032) is provided at the exhaust pipe outlet (3031) of the muffler (303). The exhaust pipe (2) is selectively connected to the after-treatment device (302).

10. A vehicle, characterized in that, Includes the intake and exhaust system according to claim 9.

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