Exhaust system and vehicle having the same

Abstract

The present invention relates to the field of vehicles, and discloses an exhaust system and a vehicle having the same, wherein the exhaust system comprises an engine and a muffler, wherein the engine and the muffler are arranged in the same vehicle cabin, wherein a cooling pipe and an exhaust pipe are arranged in the muffler, wherein an inlet and an outlet are arranged on the cooling pipe, wherein the cooling pipe is used for heat exchange with the exhaust pipe, and wherein the inlet and the outlet are suitable for being connected to a cooling medium supply device. The exhaust system designed according to the present invention integrates the cooling pipe with the muffler to exchange heat with the exhaust gas inside the muffler, and transmits the energy of the high-temperature exhaust gas to the cooling medium supply device.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and in particular to an exhaust system and a vehicle having the same. Background Art

[0002] In the related art, the exhaust gas discharged from the exhaust pipe of a pickup truck has a relatively high temperature. In some existing technologies, the exhaust gas discharged from the exhaust pipe is directly discharged to the outside, which causes certain pollution to the atmosphere, and the high-temperature exhaust gas will also affect the normal operation of other structures of the vehicle. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an exhaust system. The exhaust system designed according to the present invention integrates a cooling pipe with a muffler to exchange heat with the exhaust gas inside the muffler and conduct the energy of the high-temperature exhaust gas to a cooling medium supply device.

[0004] The present invention also provides a vehicle having the exhaust system.

[0005] The exhaust system according to the present invention includes an engine and a muffler, wherein the engine and the muffler are arranged in the same vehicle cabin, a cooling pipe and an exhaust pipe are arranged in the muffler, an inlet and an outlet are arranged on the cooling pipe, the cooling pipe is used for heat exchange with the exhaust pipe, and the inlet and the outlet are suitable for connecting with a cooling medium supply device.

[0006] According to the exhaust system of the present invention, a cooling pipe is provided to exchange heat with the exhaust gas and conduct the energy of the high-temperature exhaust gas to the cooling medium supply device. In addition, the cooling pipe is integrated with the muffler to be arranged in the same cabin of the vehicle as the engine. The cooling pipe is located inside the muffler and transfers heat to the outside of the muffler to reduce the internal air pressure of the muffler and improve the noise reduction effect of the muffler.

[0007] According to some embodiments of the present invention, the inlet and outlet of the cooling pipe are arranged on the outside of the exhaust pipe, and the cooling medium supply device is a vehicle coolant storage tank or a vehicle thermal management system.

[0008] According to some embodiments of the present invention, the cooling pipe can selectively increase or decrease the heat exchange efficiency between the cooling pipe and the exhaust pipe.

[0009] According to some embodiments of the present invention, the cooling pipe includes: a heat-conducting device, which is arranged downstream of at least a portion of the exhaust pipe and forms a gas flow channel connected to the pipe outlet of the exhaust pipe; a pipe body, which is arranged on the heat-conducting device and forms the inlet and outlet; a heat-conducting member, which is arranged in the gas flow channel and connected to the heat-conducting device, and the heat-conducting member is constructed into a plurality of members with different thermal conductivities, and the gas flow channel can selectively pass through at least one of the heat-conducting members.

[0010] According to some embodiments of the present invention, the exhaust system further comprises: a baffle, which is disposed on the muffler device and is suitable for moving relative to the heat conducting device to selectively block airflow passing through one or more of the heat conducting devices.

[0011] According to some embodiments of the present invention, the exhaust system further comprises: a driving mechanism, which is disposed on the muffler and has a driving shaft, wherein the driving shaft is suitable for connecting with the baffle to drive the baffle to move relative to the heat conducting device.

[0012] According to some embodiments of the present invention, the driving mechanism is suitable for driving the flow blocking member to move to face at least one of the heat conducting members in an extension direction of the air flow channel.

[0013] According to some embodiments of the present invention, a hollow area suitable for airflow is formed on the baffle, and the drive shaft is suitable for rotating in a plane perpendicular to the gas flow channel so that the hollow area can selectively face at least one of the heat conducting members.

[0014] According to some embodiments of the present invention, the heat conducting member is constructed as a plurality of members alternately arranged in the circumferential direction, and the thermal conductivity coefficients of two adjacent heat conducting members are different; the baffle member includes: a baffle plate, and the baffle plate is constructed as a plurality of members alternately arranged in the circumferential direction, and the hollow area is formed between two adjacent baffle plates.

[0015] According to some embodiments of the present invention, the baffle is disposed at the outlet of the gas flow channel, and the driving mechanism is suitable for driving the baffle to translate in a direction perpendicular to the gas flow channel so that the baffle can selectively face at least one of the heat conducting members.

[0016] According to some embodiments of the present invention, the silencer device includes: a shell, on which an air inlet and an air outlet are provided, the cooling pipe and the exhaust pipe are provided inside the shell, and the exhaust pipe is respectively connected to the air inlet and the air outlet.

[0017] According to some embodiments of the present invention, the exhaust pipe includes: a catalytic pipe section, the catalytic pipe section is arranged in the outer shell, and the pipe inlet of the catalytic pipe section is connected to the air inlet; a silencer pipe section, the silencer pipe section is arranged in the outer shell, the pipe inlet of the silencer pipe section is connected to the pipe outlet of the catalytic pipe section, and the pipe outlet of the silencer pipe section is connected to the air outlet; wherein the cooling pipe is suitable for heat exchange with at least one of the catalytic pipe section and the silencer pipe section.

[0018] According to some embodiments of the present invention, the catalytic pipe section and the silencer pipe section are spaced apart, the heat conduction device is arranged in the catalytic pipe section and the pipe outlet of the catalytic pipe section is connected to the gas flow channel, and the cooling pipe is suitable for heat exchange with the catalytic pipe section.

[0019] According to some embodiments of the present invention, the heat conduction device includes: a cylindrical portion, in which the gas flow channel is formed, and the pipe body is arranged on the periphery of the cylindrical portion, and the pipe body is connected to the outside of the shell.

[0020] A vehicle according to another embodiment of the present invention will be briefly described below.

[0021] The vehicle according to the present invention comprises the exhaust system described in any one of the above embodiments. Since the vehicle according to the present invention is provided with the exhaust system described in the above embodiments, the vehicle consumes less energy.

[0022] In summary, the exhaust system according to the present invention integrates the cooling pipe with the muffler to exchange heat with the exhaust gas inside the muffler, and the cooling pipe located inside the muffler can transfer heat to the cooling medium supply device outside the muffler to reduce the air pressure inside the muffler, improve the noise reduction effect of the muffler, and recover the energy of the high-temperature exhaust gas.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is a structural diagram of an exhaust system according to some embodiments of the present invention.

[0026] Figure 2 yes Figure 1 Another perspective on the structure.

[0027] Figure 3It is a schematic diagram of the structure of a driving mechanism driving a baffle to rotate according to some embodiments of the present invention.

[0028] Figure 4 2 is a structural diagram of an exhaust system according to some other embodiments of the present invention.

[0029] Figure 5 Schematic diagram of the structure of driving the baffle to translate according to some other embodiments of the present invention.

[0030] Figure 6 Schematic diagram of cooling pipeline structure according to some embodiments of the present invention.

[0031] Figure 7 Schematic diagram of cooling pipeline structure according to other embodiments of the present invention.

[0032] Figure 8 is a diagram of a cooling pipeline structure according to some embodiments of the present invention.

[0033] Fig. 9 2 is a structural diagram of cooling pipes according to other embodiments of the present invention.

[0034] Fig.10 is a structural diagram of a spoiler according to some embodiments of the present invention.

[0035] Fig.11 2 is a schematic diagram of a vehicle structure according to an embodiment of the present invention.

[0036] Reference numerals:

[0037] 1000. Vehicles;

[0038] 1. Exhaust system;

[0039] 10. Silencer; 10a. Air inlet; 10b. Air outlet; 11. Housing; 12. Catalytic pipeline section; 13. Silencer pipeline section;

[0040] 21. cooling pipe; 211. heat conducting device; 2111. barrel; 2112. pipe body; 211a. inlet; 211b. outlet; 212. heat conducting member; 2121. second heat conducting member; 2122. first heat conducting member; 213. flow blocking member; 2131. hollow area; 2132. flow blocking plate; 25. flow guide plate;

[0041] 22. driving mechanism; 23. translation mechanism; 24. driving shaft;

[0042] 2. Engine; 3. Battery pack. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the related art, the exhaust gas discharged from the exhaust pipe of a pickup truck has a relatively high temperature. In some existing technologies, the exhaust gas discharged from the exhaust pipe is directly discharged to the outside, which causes certain pollution to the atmosphere, and the high-temperature exhaust gas will also affect the normal operation of other structures of the vehicle.

[0049] Reference below Figure 1-Figure 11 An exhaust system 1 according to an embodiment of the present invention is described.

[0050] According to the exhaust system 1 of the present invention, it includes an engine 2 and a muffler 10, the engine 2 and the muffler 10 are arranged in the same vehicle cabin, a cooling pipe 21 and an exhaust pipe are arranged in the muffler 10, an inlet 211a and an outlet 211b are arranged on the cooling pipe 21, the cooling pipe 21 is used for heat exchange with the exhaust pipe, and the inlet 211a and the outlet 211b are suitable for being connected with a cooling medium supply device. Specifically, the engine 2 and the muffler 10 are arranged in the same vehicle cabin of the vehicle, which can improve the overall structural compactness of the exhaust system 1, the muffler 10 can be used to discharge the exhaust gas generated by the engine 2, and in order to utilize the energy of the high-temperature exhaust gas, the cooling pipe 21 is arranged to exchange heat with the exhaust pipe, thereby exchanging heat with the exhaust gas, and transferring the energy of the high-temperature exhaust gas to the cooling medium supply device.

[0051] Furthermore, the cooling pipe 21 can be arranged inside the muffler 10 and transfer the heat to the outside of the muffler 10. The cooling pipe 21 can be integrated with the muffler 10 and can be used to reduce the temperature of the high-temperature exhaust gas to recover the heat of the high-temperature exhaust gas. Furthermore, according to PV / T=C (constant), when the internal volume V of the muffler 10 is constant, the exhaust gas temperature T inside the muffler 10 is reduced, and the internal air pressure P of the muffler 10 is also reduced, and reducing the internal air pressure P of the muffler 10 is conducive to reducing the noise of the muffler 10.

[0052] According to the exhaust system 1 of the present invention, a cooling pipe 21 is provided to exchange heat with the exhaust gas and conduct the energy of the high-temperature exhaust gas to the cooling medium supply device. In addition, the cooling pipe 21 is integrated with the muffler 10 to be arranged in the same cabin of the vehicle as the engine 2. The cooling pipe 21 is located inside the muffler 10 and transfers heat to the outside of the muffler 10 to reduce the internal air pressure of the muffler 10 and enhance the noise reduction effect of the muffler 10.

[0053] In some embodiments, the cooling medium flowing in the cooling pipe 21 can be a gaseous medium or a liquid medium. The cooling medium supply device provides the cooling medium to the cooling pipe 21 through the inlet 211a and recovers the cooling medium in the cooling pipe 21 through the outlet 211b.

[0054] According to some embodiments of the present invention, the inlet 211a and the outlet 211b of the cooling pipe 21 are arranged on the outside of the exhaust pipe, and the cooling medium supply device is a vehicle coolant storage tank or a vehicle thermal management system. Here, by using the vehicle coolant storage tank or the vehicle thermal management system (such as the vehicle air conditioner, the heat exchange system of the battery, etc.) as the cooling medium supply device of the cooling pipe 21, the vehicle's own cooling system can be used to cool the exhaust gas, and the heat of the high-temperature exhaust gas recovered by the cooling pipe 21 can be used to power other activities of the vehicle. The heat carried by the coolant flowing out of the outlet 211b can be used to meet the heating requirements of other structures of the vehicle 1000. For example, the heat recovered by the cooling pipe 21 can be passed into the engine 2 cooling small cycle to reduce the warm-up time of the engine 2, or passed into other locations where heat is required, such as heating the battery in cold weather, or providing heat to the heating system, etc., which can be selected according to the actual needs of different structures.

[0055] In some embodiments, the cooling medium flowing in the cooling pipe 21 is a cooling liquid.

[0056] In some existing technologies, vehicles are equipped with energy recovery devices that can use the heat carried by high-temperature exhaust gases to power other activities of the vehicle. However, since the energy recovery device has a fixed ability to recover heat, the amount of heat recovered each time is a fixed value, and the application scenarios of this recovered heat are limited.

[0057] According to some embodiments of the present invention, the cooling pipe 21 can selectively increase or decrease the heat exchange efficiency between the cooling pipe 21 and the exhaust pipe. Specifically, the heat exchange efficiency of the cooling pipe 21 is adjustable, and the heat exchange efficiency between the cooling pipe 21 and the high-temperature exhaust gas can be increased or decreased according to the energy requirements of the different structures of the vehicle 1000, and the depth of heat recovery of the cooling pipe 21 can be adjusted. It is understandable that the heat recovered by the cooling pipe 21 can be changed to adapt to the energy requirements of the different structures of the vehicle 1000, increase the applicable scenarios of the heat recovered by the cooling pipe 21, reduce the energy consumption of the vehicle 1000 when working, and make the whole vehicle more green and environmentally friendly.

[0058] According to some embodiments of the present invention, the cooling pipe 21 includes a heat conducting device 211, a pipe body 2112 and a heat conducting member 212. The heat conducting device 211 is arranged downstream of at least a portion of the exhaust pipe and forms a gas flow channel connected to the pipe outlet of the exhaust pipe; the pipe body 2112 is arranged on the heat conducting device 211 and forms an inlet 211a and an outlet 211b; the heat conducting member 212 is arranged in the gas flow channel and connected to the heat conducting device 211, and the heat conducting member 212 is constructed into a plurality of heat conducting members with different thermal conductivities, and the gas flow channel can selectively pass through at least one heat conducting member 212.

[0059] Specifically, the heat conducting device 211 defines a gas flow channel, and a heat exchange flow channel is formed inside the heat conducting device 211, so that the heat conducting device 211 reduces the temperature of the exhaust gas when it passes through the gas flow channel by liquid cooling. More specifically, a heat conducting member 212 is provided in the gas flow channel to exchange heat with the exhaust gas when the exhaust gas passes through the gas flow channel, and transfer the heat to the heat conducting device 211, and the heat conducting device 211 transfers the heat to the pipe body 2112, and the pipe body 2112 transfers the heat to other structures of the vehicle 1000 for utilization.

[0060] In some embodiments, the exhaust duct has at least one duct outlet, and the number of cooling ducts 21 is no more than the number of duct outlets.

[0061] In some embodiments, the heat conductor 212 is constructed to have multiple heat conductivities with different thermal conductivities. When the exhaust gas flows through the heat conductors 212 with different thermal conductivities, the heat conductor 212 with high thermal conductivity transfers more heat to the heat conducting device 211, and the heat conductor 212 with low thermal conductivity transfers less heat to the heat conducting device 211. By selecting the heat conductor 212 through which the gas flow channel flows, the depth of the heat transferred to the heat conducting device 211 can be controlled to adapt to the energy requirements of different structures.

[0062] In some embodiments, the heat conductive member 212 is provided with holes suitable for air flow to pass through, and the gas flow channel can be selectively connected to at least one hole of the heat conductive member 212 so that the exhaust gas flows from the gas flow channel toward other structures in the muffler 10.

[0063] In some embodiments, the heat conducting member 212 includes at least a metal member and silicon carbide. Silicon carbide has a large thermal conductivity and a good heat dissipation effect, while the metal member has a small thermal conductivity and a poor heat dissipation effect.

[0064] According to some embodiments of the present invention, the exhaust system 1 further includes a baffle 213, which is disposed on the muffler 10 and is adapted to move relative to the heat-conducting device 211 to selectively block the airflow from passing through one or more of the heat-conducting members 212. Specifically, the baffle 213 moves relative to the heat-conducting device 211 to adjust the heat-conducting member 212 connected to the gas flow channel, thereby changing the depth of heat transferred to the heat-conducting device 211, so as to adapt to the energy requirements of different structures.

[0065] According to some embodiments of the present invention, the exhaust system further includes a driving mechanism 22, which is disposed on the muffler 10 and has a driving shaft 24, and the driving shaft 24 is suitable for connecting with the baffle 213 to drive the baffle 213 to move relative to the heat-conducting device 211. In some embodiments, the driving mechanism 22 can drive the baffle 213 to move relative to the heat-conducting device 211 by translation or rotation, so as to adjust the heat-conducting member 212 connected to the gas flow channel, change the depth of heat transferred to the heat-conducting device 211, and adapt to the energy requirements of different structures.

[0066] According to some embodiments of the present invention, the driving mechanism 22 is suitable for driving the baffle 213 to move to face at least one heat conductive member 212 in the extension direction of the gas flow channel to block the through holes on the heat conductive member 212. At this time, the airflow in the gas flow channel can continue to flow through the heat conductive member 212 whose through holes are not blocked. The driving mechanism 22 drives the baffle 213 to move relative to the heat conductive device 211 to adjust the heat conductive member 212 located in the gas flow channel, thereby controlling the depth of heat recovery by the cooling pipe 21.

[0067] In some embodiments, the driving mechanism 22 can drive the flow blocking member 213 to move to the surface of the heat conductive member 212 adjacent to the pipe outlet, or can drive the flow blocking member 213 to move to the surface of the heat conductive member 212 away from the pipe outlet.

[0068] According to some embodiments of the present invention, a hollow area 2131 suitable for air flow is formed on the baffle 213, and the drive shaft 24 is suitable for rotating in a plane perpendicular to the gas flow channel, so that the hollow area 2131 can be selectively opposite to at least one heat conductive member 212, so that the through hole of the heat conductive member 212 is connected to the gas flow channel. In some embodiments, the drive mechanism 22 includes a motor, the motor shaft of the motor is the drive shaft 24, the extension direction of the motor shaft is consistent with the extension direction of the gas flow channel, and the free end of the motor shaft is connected to the baffle 213, so that the motor drives the baffle 213 to rotate, thereby switching the heat conductive member 212 opposite to the hollow area 2131, thereby changing the depth of heat recovery of the cooling pipe 21.

[0069] According to some embodiments of the present invention, the heat conductive member 212 is constructed to be a plurality of heat conductive members 212 alternately arranged in the circumferential direction, and the thermal conductivity coefficients of two adjacent heat conductive members 212 are different; the baffle member 213 includes a baffle plate 2132, and the baffle plate 2132 is constructed to be a plurality of heat conductive members 212 alternately arranged in the circumferential direction, and a hollow area 2131 is formed between two adjacent baffle plates 2132.

[0070] In some embodiments, the thermal conductive member 212 with higher thermal conductivity among two adjacent thermal conductive members 212 may be a first thermal conductive member 2122, and the thermal conductive member 212 with lower thermal conductivity among two adjacent thermal conductive members 212 may be a second thermal conductive member 2121. The first thermal conductive member 2122 and the second thermal conductive member 2121 are alternately arranged in the circumferential direction of the heat conducting device 211, and the structure of the baffle 213 is designed according to the distribution of the heat conducting member 212. In this embodiment, the baffle plate 2132 and the hollow area 2131 are also alternately arranged in the circumferential direction of the heat conducting device 211.

[0071] When the heat conducting device 211 needs to recover a higher amount of heat, the baffle 213 is rotated so that the baffle plate 2132 is opposite to the second heat conducting member 2121, and the hollow area 2131 is opposite to the first heat conducting member 2122, so that the gas flow path passes through the through hole of the first heat conducting member 2122, so that the heat conducting device 211 can recover more energy; when the heat conducting device 211 needs to recover less heat, the baffle 213 is rotated so that the baffle plate 2132 is opposite to the first heat conducting member 2122, and the hollow area 2131 is opposite to the second heat conducting member 2121, so that the gas flow path passes through the through hole of the second heat conducting member 2121, so that the heat conducting device 211 can recover less energy.

[0072] Of course, the thermal conductivities of the two spaced thermally conductive members 212 may also be different, and can be designed according to actual needs.

[0073] According to some embodiments of the present invention, the baffle 213 is disposed at the outlet of the gas flow channel, and the driving mechanism 22 is adapted to drive the baffle 213 to translate in a direction perpendicular to the gas flow channel so that the baffle 213 can selectively face at least one heat conducting member 212. Specifically, the baffle 213 is located at the outlet of the gas flow channel, and at this time, the baffle 213 can translate to block the surface of the heat conducting member 212 away from the outlet of the pipeline, so as to change the heat conducting member 212 located in communication with the gas flow channel, thereby changing the depth of heat recovery of the cooling pipeline 21.

[0074] In some embodiments, the driving mechanism 22 may be configured as a worm gear or other translation mechanism 23 suitable for driving the spoiler 213 to translate.

[0075] According to some embodiments of the present invention, the muffler 10 includes a housing 11, an air inlet 10a and an air outlet 10b are provided on the housing 11, a cooling pipe 21 and an exhaust pipe are provided in the housing 11, and the exhaust pipe is connected to the air inlet 10a and the air outlet 10b respectively. In some embodiments, the exhaust pipe is composed of a plurality of pipe bodies connected in sequence, the pipe body at the head end is connected to the air inlet 10a, and the pipe body at the tail end is connected to the air outlet 10b, and the cooling pipe 21 is suitable for heat exchange with at least one pipe body.

[0076] According to some embodiments of the present invention, the exhaust pipe includes a catalytic pipe section 12 and a silencer pipe section 13, the catalytic pipe section 12 is arranged in the outer shell 11, and the pipe inlet of the catalytic pipe section 12 is connected to the air inlet 10a; the silencer pipe section 13 is arranged in the outer shell 11, the pipe inlet of the silencer pipe section 13 is connected to the pipe outlet of the catalytic pipe section 12, and the pipe outlet of the silencer pipe section 13 is connected to the air outlet 10b; wherein the cooling pipe 21 is suitable for heat exchange with at least one of the catalytic pipe section 12 and the silencer pipe section 13.

[0077] Here, the catalytic duct section 12 is suitable for catalytically treating the exhaust gas to prevent the exhaust gas from being directly discharged into the atmosphere and causing atmospheric pollution. The silencer duct section 13 is suitable for reducing the noise generated when the exhaust gas flows in the silencer device 10 to prevent the exhaust system 1 from making excessive noise when working, thereby ensuring the riding experience. The exhaust gas generated by the combustion of the engine 2 passes through the catalytic duct section 12 and the silencer duct section 13 in turn and is discharged into the atmosphere through the outlet 10b. The cooling duct 21 performs heat exchange with at least one of the catalytic duct section 12 and the silencer duct section 13 to recover the heat of the exhaust gas, which is convenient for utilization by other structures of the vehicle 1000.

[0078] In some embodiments, the catalytic conduit segment 12 is configured as a three-way catalytic converter, which can perform oxidation-reduction treatment on the exhaust gas to prevent the exhaust gas from being directly discharged into the atmosphere and causing atmospheric pollution.

[0079] According to some embodiments of the present invention, the catalytic conduit section 12 and the muffler conduit section 13 are spaced apart, the heat conducting device 211 is disposed in the catalytic conduit section 12, and the conduit outlet of the catalytic conduit section 12 is communicated with the gas flow channel, and the cooling conduit 21 is suitable for heat exchange with the catalytic conduit section 12. It is understandable that, since the temperature of the exhaust gas will change after the catalytic conduit section 12 performs catalytic treatment on the exhaust gas, the cooling conduit 21 is disposed downstream of the catalytic conduit section 12 to ensure effective heat exchange between the cooling conduit 21 and the exhaust gas.

[0080] According to some embodiments of the present invention, the heat conducting device 211 includes a barrel portion 2111, a gas flow channel is formed in the barrel portion 2111, a pipe body 2112 is arranged on the outer periphery of the barrel portion 2111, and the pipe body 2112 is communicated with the outside of the housing 11. Here, the barrel portion 2111 can be sleeved on the outer periphery of a pipe body of the exhaust pipe and located at the pipe outlet of the pipe body to perform heat exchange on the exhaust gas flowing out of the pipe body.

[0081] In some embodiments, the cylinder portion 2111 is sleeved on the outer periphery of the catalytic conduit segment 12 and is located at the conduit outlet of the catalytic conduit segment 12 .

[0082] In some embodiments, the heat conducting device 211 is located downstream of the catalytic pipe section 12 and upstream of the silencer pipe section 13. A guide plate 25 is also provided between the heat conducting device 211 and the pipe outlet of the catalytic pipe section 12. The guide plate 25 is suitable for guiding the exhaust gas discharged from the pipe outlet of the catalytic pipe section 12 to flow toward the heat conducting device 211.

[0083] The vehicle 1000 according to the present invention is briefly described below.

[0084] The vehicle 1000 according to the present invention comprises the exhaust system 1 according to any one of the above embodiments. Since the vehicle 1000 according to the present invention is provided with the exhaust system 1 according to the above embodiments, the vehicle 1000 consumes less energy.

[0085] In some embodiments, the exhaust system 1 of the vehicle 1000 is physically separated from the battery pack 3, wherein the engine 2 and the exhaust system 1 are arranged in a first space of the vehicle, and the battery pack 3 is arranged in a second space of the vehicle. The exhaust system 1 does not need to share space with the battery pack 3, and the first space is in front of the second space, so that the arrangement space of the battery pack 3 is larger, the battery capacity is increased, and thus the endurance of the whole vehicle is improved.

[0086] In summary, the exhaust system 1 according to the present invention integrates the cooling pipe with the muffler to exchange heat with the exhaust gas inside the muffler, and the cooling pipe 21 located inside the muffler 10 can transfer heat to the cooling medium supply device outside the muffler 10 to reduce the internal air pressure of the muffler 10, improve the noise reduction effect of the muffler 10, and recover the energy of the high-temperature exhaust gas.

[0087] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0088] While embodiments of the present invention have been shown and described above, changes, modifications, substitutions and variations may be made to the embodiments described above.

Claims

1. An exhaust system comprising an engine (2) and a muffler (10), characterized in that: The engine (2) and the muffler (10) are arranged in the same vehicle cabin, a cooling pipe (21) and an exhaust pipe are arranged in the muffler (10), an inlet (211a) and an outlet (211b) are arranged on the cooling pipe (21), the cooling pipe (21) is used for heat exchange with the exhaust pipe, and the inlet (211a) and the outlet (211b) are suitable for communicating with a cooling medium supply device; The cooling pipeline (21) comprises: a heat conducting device (211), the heat conducting device (211) being arranged downstream of at least a portion of the exhaust pipe and forming a gas flow channel communicating with a pipe outlet of the exhaust pipe; A pipe body (2112), the pipe body (2112) being arranged on the heat conducting device (211) and having the inlet (211a) and the outlet (211b); A heat conducting member (212) is disposed in the gas flow channel and connected to the heat conducting device (211); the heat conducting member (212) is constructed as a plurality of heat conducting members (212) having different thermal conductivity coefficients; and the gas flow channel can selectively pass through at least one of the heat conducting members (212).

2. The exhaust system according to claim 1, characterized in that The inlet (211a) and the outlet (211b) of the cooling pipe (21) are arranged outside the exhaust pipe, and the cooling medium supply device is a whole vehicle coolant storage tank or a whole vehicle thermal management system.

3. The exhaust system according to claim 1, characterized in that: The cooling pipe (21) can selectively increase or decrease the heat exchange efficiency between the cooling pipe (21) and the exhaust pipe.

4. The exhaust system according to claim 1, characterized in that Also includes: A flow blocker (213), the flow blocker (213) being arranged on the muffler device (10) and being adapted to move relative to the heat conducting device (211) so as to selectively block airflow from passing through one or more of the heat conducting devices (212).

5. The exhaust system according to claim 4, characterized in that Also includes: A driving mechanism (22), the driving mechanism (22) being arranged on the muffler device (10) and having a driving shaft (24), the driving shaft (24) being suitable for being connected to the flow blocking member (213) to drive the flow blocking member (213) to move relative to the heat conducting device (211).

6. The exhaust system according to claim 5, characterized in that The driving mechanism (22) is suitable for driving the flow blocking member (213) to move to face at least one of the heat conducting members (212) in the extension direction of the air flow channel.

7. The exhaust system according to claim 6, characterized in that The flow blocking member (213) is formed with a hollow area (2131) suitable for airflow circulation, and the drive shaft (24) is suitable for rotating in a plane perpendicular to the gas flow channel, so that the hollow area (2131) can be selectively opposite to at least one of the heat conducting members (212).

8. The exhaust system according to claim 7, characterized in that The heat conducting member (212) is structured to be a plurality of heat conducting members (212) arranged alternately in the circumferential direction, and the thermal conductivity coefficients of two adjacent heat conducting members (212) are different; The flow blocking member (213) comprises: The spoiler plate (2132) is constructed as a plurality of spoiler plates (2132) arranged at intervals in the circumferential direction, and the hollow area (2131) is formed between two adjacent spoiler plates (2132).

9. The exhaust system according to claim 5, characterized in that The baffle (213) is arranged at the outlet of the gas flow channel, and the driving mechanism (22) is suitable for driving the baffle (213) to translate in a direction perpendicular to the gas flow channel so that the baffle (213) can selectively face at least one of the heat conducting members (212).

10. The exhaust system according to claim 1, characterized in that The muffler device (10) comprises: A shell (11), wherein an air inlet (10a) and an air outlet (10b) are provided on the shell (11), wherein the cooling pipe (21) and the exhaust pipe are provided in the shell (11), and wherein the exhaust pipe is respectively connected to the air inlet (10a) and the air outlet (10b).

11. The exhaust system according to claim 10, characterized in that The exhaust duct comprises: A catalytic pipeline section (12), the catalytic pipeline section (12) being arranged in the housing (11), and the pipeline inlet of the catalytic pipeline section (12) being in communication with the air inlet (10a); a silencer pipe section (13), the silencer pipe section (13) being arranged in the housing (11), the pipe inlet of the silencer pipe section (13) being in communication with the pipe outlet of the catalytic pipe section (12), and the pipe outlet of the silencer pipe section (13) being in communication with the air outlet (10b); wherein The cooling pipe (21) is suitable for performing heat exchange with at least one of the catalytic pipe section (12) and the muffler pipe section (13).

12. The exhaust system according to claim 11, characterized in that The catalytic pipeline section (12) and the muffler pipeline section (13) are arranged at intervals, the heat conduction device (211) is arranged on the catalytic pipeline section (12) and the pipeline outlet of the catalytic pipeline section (12) is connected to the gas flow channel, and the cooling pipeline (21) is suitable for heat exchange with the catalytic pipeline section (12).

13. The exhaust system according to claim 10, characterized in that The heat conducting device (211) comprises: A cylinder portion (2111) is provided with the gas flow channel in the cylinder portion (2111), and the pipe body (2112) is provided on the outer periphery of the cylinder portion (2111), and the pipe body (2112) is connected to the outside of the shell (11).

14. A vehicle, characterized in that: Comprising an exhaust system (1) according to any one of claims 1 to 13.

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