An exhaust assembly, an engine assembly, and a mobile device

Abstract

The embodiment of the application provides an exhaust assembly, an engine assembly and a motorized device, and relates to the technical field of exhaust devices. The exhaust assembly is used for being installed in an engine cabin. The engine cabin is provided with an engine. The engine has an exhaust port. The exhaust assembly comprises: a first muffler and a second muffler. The first muffler is used for being arranged on one side of the engine along a first direction and is used for being communicated with the exhaust port. The second muffler is used for being arranged on one side of the engine along a second direction and is communicated with the first muffler. The second direction is perpendicular to the first direction. Along the second direction, the second muffler is opposite to the first muffler. The exhaust assembly is arranged by integrating the first muffler, the second muffler and other components in the engine cabin. The spatial orientation of each component is optimized. The exhaust assembly reduces the risk of heat damage to the chassis caused by heat radiation and heat conduction of the exhaust assembly, and helps to reduce the exhaust back pressure of the exhaust assembly, improves the engine power output and fuel economy.

Description

Technical Field

[0001] This application relates to the field of exhaust device technology, and more particularly to an exhaust assembly, engine assembly, and motor equipment. Background Technology

[0002] The vehicle's exhaust system not only serves to expel the exhaust gases produced by the engine combustion, but also needs to meet strict emission regulations (such as the China VI standard), while taking into account the vehicle's thermal management, chassis space utilization, and user driving comfort.

[0003] The exhaust system includes components such as a catalytic converter, particulate filter, muffler, and connecting pipes. The catalytic converter converts harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides in the exhaust gas into harmless substances to meet emission regulations. The particulate filter captures particulate matter in the exhaust gas, further reducing pollutant emissions. The muffler attenuates exhaust noise, improving user comfort. The connecting pipes ensure a sealed connection between the components and direct the exhaust gas flow.

[0004] Among related technologies, exhaust components pose a significant risk of thermal damage to the chassis. Utility Model Content

[0005] This application provides an exhaust assembly, an engine assembly, and a motor device to address the problem in the related art that exhaust assemblies pose a significant risk of thermal damage to the vehicle chassis.

[0006] In a first aspect, embodiments of this application provide an exhaust assembly for installation in an engine compartment, wherein an engine is disposed in the engine compartment, and the engine has an exhaust port; the exhaust assembly includes:

[0007] A first muffler is provided on one side of the engine along a first direction and is used to connect to the exhaust port;

[0008] A second muffler is disposed on one side of the engine along a second direction and communicates with the first muffler, the second direction being perpendicular to the first direction; along the second direction, the second muffler is opposite to the first muffler.

[0009] The exhaust system includes a first muffler and a second muffler. The first muffler connects to the engine's exhaust port, and the second muffler connects to the first muffler. This allows the exhaust gases from the engine to undergo two separate noise reduction processes, ensuring effective noise reduction. The design of placing the exhaust system within the engine compartment utilizes the redundant space within the engine compartment. Furthermore, this avoids the exhaust system occupying chassis space, effectively reducing spatial conflicts with components such as the battery pack, fuel tank, and suspension system, thus improving the overall vehicle design flexibility and spatial integration. On the other hand, concentrating the exhaust system within the engine compartment physically isolates the high-temperature components of the exhaust system from heat-sensitive chassis components, reducing the risk of heat damage from heat radiation and conduction. This helps extend the lifespan of components such as the battery pack and tires and maintain their performance stability. The first muffler is positioned on one side of the engine along a first direction, utilizing redundant space in the upper or lower regions of the engine. The second muffler is positioned on one side of the engine along a second direction, utilizing redundant space in the front or rear regions of the engine, thus improving the integration of the engine assembly. Furthermore, since both the first and second mufflers are located within the engine compartment, the distance between them is small. Simultaneously, their opposing arrangement along the second direction further reduces this distance, helping to decrease the length and number of bends in the exhaust pipe of the exhaust assembly. This, in turn, helps reduce airflow resistance, while also reducing material consumption and manufacturing costs, and improving engine power output and fuel economy.

[0010] In one possible implementation, the exhaust assembly further includes:

[0011] A first exhaust pipe extends along the second direction, is located between the first muffler and the second muffler, and connects to the first muffler and the second muffler.

[0012] In one possible implementation, the second muffler has an outlet located on the side of the second muffler facing the first muffler.

[0013] In one possible implementation, the angle α between the outlet direction and the plane containing the second direction and the third direction is 40° to 50°, and the third direction is perpendicular to the second direction and the first direction.

[0014] In one possible implementation, the second muffler has a plurality of outlets spaced apart along a third direction perpendicular to both the second and first directions.

[0015] In one possible implementation, the exhaust assembly further includes:

[0016] A filter module is disposed on the side of the engine away from the second muffler, and is connected to the exhaust port and the first muffler, for filtering the gas discharged from the exhaust port.

[0017] In one possible implementation, the exhaust assembly further includes:

[0018] The second exhaust pipe is connected to the first muffler and the filter module, and the second exhaust pipe has a smooth transition.

[0019] In one possible implementation, the second exhaust pipe has a first flow channel, a second flow channel, and a third flow channel connected in sequence, the first flow channel being connected to the first muffler, and the third flow channel being connected to the filter module; and the second flow channel smoothly transitions to both the first flow channel and the third flow channel.

[0020] In one possible implementation, the exhaust assembly further includes:

[0021] A turbocharger is located on the side of the engine opposite to the second muffler and is connected to the exhaust port and the filter module.

[0022] In one possible implementation, the booster and the filter module are arranged sequentially along the first direction.

[0023] Secondly, embodiments of this application provide an engine assembly, including:

[0024] Engine with exhaust port

[0025] The exhaust assembly of the first aspect, wherein a first muffler of the exhaust assembly is disposed on one side of the engine along a first direction and communicates with the exhaust port; and a second muffler of the exhaust assembly is disposed on one side of the engine along a second direction, the second direction being perpendicular to the first direction.

[0026] Thirdly, embodiments of this application provide a motorized device, including:

[0027] Load-bearing structure, with engine compartment;

[0028] The engine assembly described in the second aspect is disposed within the engine compartment.

[0029] In one possible implementation, the second muffler is disposed on the front side of the engine along the forward direction of the motorized equipment.

[0030] In one possible implementation, both the first and second mufflers of the engine assembly are located at the bottom of the engine compartment.

[0031] In one possible implementation, the motorized device further includes:

[0032] An electric drive assembly is located within the engine compartment and on the side of the engine assembly along a third direction, which is perpendicular to both the second and first directions.

[0033] It should be understood that the second and third aspects of this application correspond to the technical solutions of the first aspect of this application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation are similar, and will not be repeated here. Attached Figure Description

[0034] Figure 1 Schematic diagram of the structure of the engine assembly provided in some embodiments of this application Figure 1 .

[0035] Figure 2 Schematic diagram of the structure of the engine assembly provided in some embodiments of this application Figure 2 .

[0036] Figure 3 Schematic diagram of the structure of the engine assembly provided in some embodiments of this application Figure 3 .

[0037] Figure 4 The diagram shows the structure of the engine assembly and electric drive assembly provided in some embodiments of this application.

[0038] Figure 5 This is a structural diagram of a vehicle when the motorized device provided in some embodiments of this application is a vehicle.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10-Motor equipment, 10a-Engine compartment, 1000-Engine assembly, 100-Exhaust assembly, 110-First muffler, 120-Second muffler, 120a-Exhaust outlet, 130-First exhaust pipe, 140-Filter module, 150-Second exhaust pipe, 151-First flow channel, 152-Second flow channel, 153-Third flow channel, 160-Turbocharger, 170-Third exhaust pipe, 200-Engine, 200a-Exhaust port, 2000-Electric drive assembly, 3000-Bearing structure, X-Second direction, Y-Third direction, Z-First direction. Detailed Implementation

[0041] The exhaust system includes components such as a catalytic converter, particulate filter, muffler, and connecting pipes. The catalytic converter converts harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides in the exhaust gas into harmless substances to meet emission regulations. The particulate filter captures particulate matter in the exhaust gas, further reducing pollutant emissions. The muffler attenuates exhaust noise, improving user comfort. The connecting pipes ensure a sealed connection between the components and direct the exhaust gas flow.

[0042] In related technologies, the exhaust system is typically arranged from the engine compartment to the chassis and then to the rear of the vehicle, with the exhaust outlet located at the rear. This arrangement presents the following problems:

[0043] 1. Large space occupation: The exhaust pipe needs to extend from the engine compartment to the chassis and from the chassis to the rear of the vehicle, occupying a large amount of chassis space. It is easy to cause space conflicts with components such as battery pack, fuel tank, chassis suspension system, etc., which limits the flexibility of the overall vehicle design.

[0044] 2. High risk of heat damage: High-temperature areas of the exhaust system, such as the three-way catalytic converter and muffler, are close to the chassis and can easily affect the performance and lifespan of components such as battery packs and tires through heat radiation or heat conduction. This is especially true in new energy vehicles, where the requirements for battery pack thermal management are extremely stringent.

[0045] 3. High exhaust back pressure: The long exhaust pipe and multi-stage muffler design increase exhaust resistance and back pressure, which in turn reduces engine power output and fuel economy.

[0046] 4. Weight and cost issues: The exhaust pipe is relatively long and requires multiple suspension brackets and other structures to support it, which increases the overall weight of the exhaust assembly and the manufacturing cost.

[0047] Therefore, exhaust components in related technologies pose a significant risk of thermal damage to the vehicle chassis.

[0048] In view of this, this application designs an exhaust assembly, an engine assembly, and a motor device. The exhaust assembly integrates components such as a first muffler and a second muffler in the engine compartment and optimizes the spatial orientation of each component. This reduces the risk of heat damage to the vehicle chassis caused by the heat radiation and heat conduction of the exhaust assembly, and helps to reduce the exhaust back pressure of the exhaust assembly, thereby improving engine power output and fuel economy.

[0049] The exhaust system, engine assembly, and motor equipment provided in the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0050] It should be noted that the engine assembly provided in this application can be applied to various types of motor equipment that require engine assemblies, such as vehicles, ships, aircraft, and rail transit equipment. This application does not limit the specific type of motor equipment to which the engine assembly is applied. For the convenience of the following description, the following text will use vehicles as an example for detailed explanation.

[0051] In the attached figures, Z represents the first direction, X represents the second direction, and Y represents the third direction. In the scenario where the engine assembly is installed in the engine compartment of the vehicle, the first direction Z is parallel to the vehicle's height direction (i.e., the vehicle's vertical direction), the second direction X is parallel to the vehicle's length direction (i.e., the vehicle's front-to-back direction), and the third direction Y is parallel to the vehicle's width direction (i.e., the vehicle's left-to-right direction). The interpretation of the relevant directional descriptions in the following embodiments can refer to the above content.

[0052] like Figure 1 and Figure 2 As shown, this application embodiment provides an exhaust assembly 100, which is installed in an engine compartment 10a. An engine 200 is disposed in the engine compartment 10a, and the engine 200 has an exhaust port 200a. The exhaust assembly 100 includes a first muffler 110 and a second muffler 120. The first muffler 110 is disposed on one side of the engine 200 along a first direction Z and is connected to the exhaust port 200a. The second muffler 120 is disposed on one side of the engine 200 along a second direction X and is connected to the first muffler 110. The second direction X is perpendicular to the first direction Z. Along the second direction X, the second muffler 120 is opposite to the first muffler 110.

[0053] When the exhaust assembly 100 is in use, it is installed in the engine compartment 10a of the motor equipment 10, and the air intake of the first muffler 110 is connected to the exhaust port 200a of the engine 200 in the engine compartment 10a. It is understood that the air intake of the first muffler 110 and the exhaust port 200a of the engine 200 can be connected by a pipe, and components such as a turbocharger 160 and a filter module 140 can also be installed between the air intake of the first muffler 110 and the exhaust port 200a of the engine 200; however, this application does not impose any limitations on these components.

[0054] Understandably, the outlet of the first muffler 110 is connected to the inlet of the second muffler 120, and the outlet 120a of the second muffler 120 is connected to the outside atmosphere. This allows the exhaust gas from the engine 200 to first enter the first muffler 110 for noise reduction, then continue to the second muffler 120 for further noise reduction, and finally be discharged into the atmosphere through the outlet 120a of the second muffler 120. The exhaust gas from the engine 200 undergoes two noise reduction treatments—one through the first muffler 110 and the other through the second muffler 120—ensuring a better noise reduction effect and contributing to improved driving comfort.

[0055] In a scenario where the exhaust assembly 100 is installed within the engine compartment 10a of the vehicle, both the first muffler 110 and the second muffler 120 are located within the engine compartment 10a. This avoids occupying chassis space and reduces spatial conflicts with components such as the battery pack, fuel tank, and chassis suspension system, thus improving the flexibility of the overall vehicle design. Furthermore, since the first muffler 110, the second muffler 120, and connecting pipes are concentrated within the engine compartment 10a, a physical distance is created between them and components on the chassis such as the battery pack and tires. This reduces the path for the high-temperature components of the exhaust assembly 100 to transfer heat to the chassis through thermal radiation or conduction. Consequently, the risk of thermal damage to the vehicle chassis from the high-temperature components of the exhaust assembly 100, including the first muffler 110, the second muffler 120, and connecting pipes, is reduced. This results in less thermal radiation to components on the chassis such as the battery pack and tires, helping to extend the performance and lifespan of these components.

[0056] The first muffler 110 is disposed on one side of the engine 200 along the first direction Z, that is, along the vehicle height direction, the first muffler 110 can be disposed on the upper side or the lower side of the engine 200. The second muffler 120 is disposed on one side of the engine 200 along the second direction X, that is, along the vehicle length direction, the second muffler 120 can be disposed on the front side or the rear side of the engine 200. Disposing the first muffler 110 on one side of the engine 200 along the first direction Z utilizes redundant space in the upper or lower region of the engine 200, and disposing the second muffler 120 on one side of the engine 200 along the second direction X utilizes redundant space in the front or rear region of the engine 200, thereby improving the vehicle's integration. Furthermore, since both the first muffler 110 and the second muffler 120 are located within the engine compartment 10a, the distance between the first muffler 110 and the second muffler 120 is small, and the first muffler 110 and the second muffler 120 are arranged opposite each other along the second direction X, which further reduces the distance between the first muffler 110 and the second muffler 120. This helps to reduce the length of the exhaust pipe of the exhaust assembly 100 and the number of bends, thereby helping to reduce airflow resistance, while reducing material consumption and manufacturing costs, as well as improving engine power output and fuel economy.

[0057] In summary, the exhaust assembly 100 includes a first muffler 110 and a second muffler 120. The first muffler 110 is connected to the exhaust port 200a of the engine 200, and the second muffler 120 is connected to the first muffler 110. This allows the exhaust gas from the engine 200 to undergo two muffler treatments, passing through the first muffler 110 and the second muffler 120 in sequence, thus ensuring the muffler effect. The design of the exhaust assembly 100 being located within the engine compartment 10a ensures that components such as the first muffler 110 and the second muffler 120 are also located within the engine compartment 10a. On one hand, this utilizes the redundant space within the engine compartment 10a to arrange the exhaust assembly 100, and in scenarios where the exhaust assembly 100 is installed within the vehicle's engine compartment 10a, it avoids occupying chassis space, effectively reducing spatial conflicts with components such as the battery pack, fuel tank, and suspension system, thus contributing to improved vehicle design flexibility and spatial integration. On the other hand, the concentration of the exhaust assembly 100 within the engine compartment 10a provides a physical barrier between the high-temperature components of the exhaust assembly 100 and heat-sensitive components of the chassis, reducing the risk of heat damage from heat radiation and heat conduction. This helps extend the service life of components such as the battery pack and tires and maintain their performance stability. The first muffler 110 is positioned on one side of the engine 200 along the first direction Z, utilizing redundant space in the upper or lower region of the engine 200. The second muffler 120 is positioned on one side of the engine 200 along the second direction X, utilizing redundant space in the front or rear region of the engine 200, thus improving the integration of the engine assembly 1000. Furthermore, since both the first and second mufflers 110 and 120 are located within the engine compartment 10a, the distance between them is small. Simultaneously, the opposing arrangement of the first and second mufflers 110 and 120 along the second direction X further reduces this distance, thereby helping to reduce the length and number of bends in the exhaust pipe of the exhaust assembly 100, thus reducing airflow resistance, material consumption and manufacturing costs, and improving engine power output and fuel economy.

[0058] like Figure 3 As shown, in some embodiments, the exhaust assembly 100 further includes a first exhaust pipe 130, which extends along a second direction X, is located between the first muffler 110 and the second muffler 120, and communicates with the first muffler 110 and the second muffler 120.

[0059] The layout of the first exhaust pipe 130 extending along the second direction X is compatible with the layout of the first muffler 110 and the second muffler 120 being arranged opposite each other along the second direction X. The two mufflers can be directly connected to minimize the connection path and avoid unnecessary bends and detours of the first exhaust pipe 130. This effectively reduces airflow resistance, helps improve the power output efficiency and fuel economy of the engine 200, and saves on pipeline material consumption, thereby achieving weight reduction and cost reduction.

[0060] like Figure 2 and Figure 3 As shown, in some embodiments, the second muffler 120 has an outlet 120a, which is disposed on the side of the second muffler 120 facing the first muffler 110.

[0061] In a scenario where the exhaust assembly 100 is installed within the engine compartment 10a of the vehicle, the second muffler 120 is located at the front of the engine 200, and the exhaust outlet 120a is positioned on the side of the second muffler 120 facing the first muffler 110, i.e., the exhaust outlet 120a is located at the rear of the second muffler 120. With this design, the second muffler 120 itself can shield the exhaust outlet 120a, preventing external airflow (such as oncoming airflow) from directly impacting the exhaust outlet 120a during vehicle operation. This reduces the reverse pressure generated by external airflow on the exhaust, lowers exhaust back pressure to ensure a smoother exhaust process, and ultimately helps improve the power output efficiency and fuel economy of the engine 200.

[0062] like Figure 2 As shown, in some embodiments, the angle α between the outlet 120a and the plane containing the second direction X and the third direction Y is 40°~50°, and the third direction Y is perpendicular to the second direction X and the first direction Z.

[0063] The plane containing the second direction X and the third direction Y is a horizontal plane. In this design, the exhaust outlet 120a is angled backward at 40°~50° to the horizontal plane. When the exhaust assembly 100 is installed in the engine compartment 10a of the vehicle, the high-temperature exhaust gas exhaust path will not point towards sensitive components such as the rear battery pack, fuel tank, and wiring harness, nor towards the tires on the left and right sides. Instead, it forms an airflow that slopes downward and backward, thereby reducing the thermal damage to surrounding sensitive components such as the battery pack and tires. This helps extend the service life of components such as the battery pack and tires and maintain their performance stability. α can be 40°, 41°, 42°, 44°, 45°, etc., and is not limited in this application.

[0064] In some embodiments, the second muffler 120 has a plurality of outlets 120a, which are spaced apart along a third direction Y.

[0065] In the scenario where the exhaust assembly 100 is installed in the engine compartment 10a of the vehicle, multiple exhaust outlets 120a are distributed at intervals along the third direction Y. On the one hand, this can disperse the exhaust path of high-temperature exhaust gas in the width direction of the vehicle, avoiding excessively high local heat flux density caused by concentrated exhaust from a single exhaust outlet 120a, thereby reducing the risk of performance degradation of components in that area due to local overheating. On the other hand, simultaneous exhaust from multiple exhaust outlets 120a can reduce the airflow velocity and pressure peak in a single channel, reduce turbulence disturbances during the exhaust process to optimize exhaust back pressure, and help improve engine power output efficiency.

[0066] In some embodiments, the second muffler 120 has two outlets 120a.

[0067] like Figure 2 As shown, in some embodiments, the exhaust assembly 100 further includes a filter module 140, which is disposed on the side of the engine 200 away from the second muffler 120 and connected to the exhaust port 200a and the first muffler 110, for filtering the gas discharged from the exhaust port 200a.

[0068] The filter module 140 is used to convert harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides in the exhaust gas into less harmful or harmless substances to meet emission regulations, and to capture particulate matter in the exhaust gas to reduce pollutant emissions. The exhaust gas discharged from the engine 200 is discharged through the exhaust port 200a, first enters the filter module 140, and then the filtered and purified exhaust gas enters the first muffler 110 through the connecting pipe, and finally enters the second muffler 120.

[0069] The filter module 140 is located on the side of the engine 200 opposite to the second muffler 120. Specifically, if the second muffler 120 is located at the front of the engine 200, the filter module 140 is correspondingly arranged at the rear of the engine 200; if the second muffler 120 is located at the rear of the engine 200, the filter module 140 is correspondingly arranged at the front of the engine 200. This layout can achieve compact integration by utilizing the redundant space in the engine compartment 10a along the vehicle's length, while shortening the intake path from the exhaust port 200a of the engine 200 to the filter module 140, which helps reduce heat loss and flow resistance of exhaust gas during transmission. In addition, by separating the filter module 140 and the second muffler 120 on the front and rear sides of the engine 200, it avoids them being concentrated in the engine compartment 10a and occupying each other's space, reducing the risk of interference between components, making the layout in the engine compartment 10a more balanced and reasonable, and improving the flexibility and spatial integration of the overall vehicle design.

[0070] like Figure 3As shown, in some embodiments, the exhaust assembly 100 further includes a second exhaust pipe 150, which is connected to the first muffler 110 and the filter module 140, and the second exhaust pipe 150 has a smooth transition.

[0071] The exhaust gas from engine 200 enters the filter module 140 through exhaust port 200a, and after purification and filtration, flows into the second exhaust pipe 150. It flows smoothly along the second exhaust pipe 150 and finally enters the first muffler 110 for noise reduction. The smooth transition specifically refers to the fact that the second exhaust pipe 150 has no sharp angles, right angles, or other hard bends. The turning sections all adopt arc-shaped or streamlined structures without obvious sharp edges, and the inner wall of the pipe is smooth and flat, without steps or protrusions. The entire pipe has a continuous and abrupt transition from inlet to outlet. This smooth transition design of the second exhaust pipe 150 reduces local turbulence and airflow impact during exhaust gas flow, thereby reducing the exhaust back pressure of the exhaust assembly 100, which is beneficial for improving the power output efficiency and fuel economy of engine 200.

[0072] like Figure 3 As shown, in some embodiments, the second exhaust pipe 150 has a first flow channel 151, a second flow channel 152 and a third flow channel 153 connected in sequence. The first flow channel 151 is connected to the first muffler 110 and the third flow channel 153 is connected to the filter module 140. The second flow channel 152 is smoothly transitioned to the first flow channel 151 and the third flow channel 153.

[0073] The exhaust gas from engine 200 enters filter module 140 through exhaust port 200a. After purification and filtration, it first enters third flow channel 153, then smoothly transitions through second flow channel 152 to first flow channel 151, and finally enters first muffler 110 for noise reduction. The smooth transition design of second flow channel 152 with first flow channel 151 and third flow channel 153 reduces local turbulence and airflow impact during exhaust gas flow, thereby reducing exhaust back pressure of exhaust assembly 100 and helping to improve the power output efficiency and fuel economy of engine 200. Meanwhile, since the filter module 140 is located on the side of the engine 200 away from the second muffler 120, and the first muffler 110 is located on the side of the engine 200 along the first direction Z, this segmented flow channel structure can better adapt to the relative layout of the filter module 140 and the first muffler 110. Through the directional adaptation of the third flow channel 153, the second flow channel 152, and the first flow channel 151, a compact arrangement of pipes can be achieved within the limited space of the engine compartment 10a, avoiding forced bending of pipes due to differences in component orientation. This reduces the space occupied by pipes and lowers the risk of pipe fatigue caused by bending stress, which helps to improve the structural reliability and service life of the exhaust assembly 100. For example, the third flow channel 153 extends along the first direction Z to connect the filter module 140, the first flow channel 151 extends along the second direction X to connect the first muffler 110, and the second flow channel 152 makes an arc turn to connect the third flow channel 153 and the first flow channel 151 extending in different directions.

[0074] It should be noted that the second exhaust pipe 150 may include multiple segments, each of which can be processed independently and then assembled to form a complete second exhaust pipe 150; alternatively, it can be directly processed using an integral molding process. For example, the second exhaust pipe 150 may include a first pipe segment, a second pipe segment, and a third pipe segment; wherein, a first flow channel 151 is formed in the first pipe segment, a second flow channel 152 is formed in the second pipe segment, and a third flow channel 153 is formed in the third pipe segment; the above three pipe segments can be processed independently and then connected and assembled sequentially to form the second exhaust pipe 150, or they can be integrally processed using an integral molding method.

[0075] In some embodiments, the filter module 140 includes a catalyst and a particulate filter. The catalyst is connected to the exhaust port 200a; the particulate filter is connected to the catalyst and the first muffler 110.

[0076] Catalysts are used to convert harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides in exhaust gases into less harmful or harmless substances to meet emission regulations. Particulate filters are used to capture particulate matter in the exhaust gas after catalytic treatment, further reducing pollutant emissions. This staged treatment method, which involves catalytic purification followed by particulate capture, utilizes the high temperatures generated during catalyst operation to provide favorable conditions for the oxidation and removal of particulate matter within the particulate filter, thus improving the purification efficiency and regeneration effect of the particulate filter. The structures of catalysts and particulate filters are diverse and known to those skilled in the art, and are not limited herein.

[0077] In some embodiments, the exhaust assembly 100 further includes a turbocharger 160 disposed on the side of the engine 200 away from the second muffler 120 and connected to the exhaust port 200a and the filter module 140.

[0078] The turbocharger 160 utilizes the exhaust gas energy from the engine 200 to drive its power end to rotate, thereby driving the coaxial compression end to compress the intake air, increasing the intake volume and combustion efficiency of the engine 200, and enhancing power output. Simultaneously, the turbocharger 160 is positioned on the side of the engine 200 away from the second muffler 120, allowing it to be compactly integrated with the filter module 140 using the redundant space along the length of the vehicle in the engine compartment 10a, avoiding spatial interference with components such as the second muffler 120 and the first muffler 110. With the turbocharger 160 installed, the exhaust gas from the engine 200 first enters the power end of the turbocharger 160, and the exhaust gas exiting from the power end then enters the filter module 140 for purification. This fully utilizes the exhaust gas energy, reducing energy waste, and the close proximity of the turbocharger 160 and filter module 140 shortens the pipeline length, reducing resistance and heat loss during exhaust gas transmission, helping to maintain the operating temperature of the filter module 140 and ensuring purification efficiency. The turbocharger 160 can be a vortex turbocharger.

[0079] In some embodiments, the booster 160 and the filter module 140 are arranged sequentially along the first direction Z.

[0080] The turbocharger 160 and the filter module 140 are arranged sequentially along the first direction Z, which can make full use of the vertical space redundancy on the side of the engine 200 away from the second muffler 120, avoiding concentrated space occupation in the length or width direction of the vehicle, thereby reducing the risk of interference with other components in the engine compartment 10a; at the same time, this layout helps to shorten the length of the connecting pipe between the two, so that the exhaust gas discharged through the turbocharger 160 can enter the filter module 140 through a shorter path, reducing heat loss and flow resistance during exhaust gas transmission, thereby helping to improve engine power output and fuel economy, as well as maintain the operating temperature of the filter module 140 (such as catalytic converter, particulate filter) and ensure its purification efficiency.

[0081] In some embodiments, the exhaust assembly 100 further includes a third exhaust pipe 170 connected to the turbocharger 160 and the filter module 140.

[0082] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, based on the same design concept, this application embodiment also provides an engine assembly 1000, including: an engine 200 and the aforementioned exhaust assembly 100. The engine 200 has an exhaust port 200a; the first muffler 110 of the exhaust assembly 100 is disposed on one side of the engine 200 along a first direction Z and communicates with the exhaust port 200a; the second muffler 120 of the exhaust assembly 100 is disposed on one side of the engine 200 along a second direction X, the second direction X being perpendicular to the first direction Z.

[0083] Since the engine assembly 1000 includes the aforementioned exhaust assembly 100, it naturally possesses all the beneficial effects of the engine assembly 1000, which will not be elaborated upon here.

[0084] like Figure 5 As shown, based on the same design concept, this application embodiment also provides a motorized device 10, which includes a load-bearing structure 3000 and the aforementioned engine assembly 1000. The load-bearing structure 3000 has an engine compartment 10a, and the engine assembly 1000 is disposed in the engine compartment 10a.

[0085] The motorized equipment 10 in this application may include vehicles, ships, aircraft, rail transit equipment, and other equipment that require an engine 200, and the specific type is not limited. The load-bearing structure 3000 of the motorized equipment 10 is used to support and fix components such as the engine 200 and exhaust assembly 100, providing stable installation space for each component. When the motorized equipment 10 is a vehicle, its load-bearing structure 3000 is the vehicle body, which includes components such as the front frame, front longitudinal beams, wheel arches, engine compartment 10a cover, and front bulkhead, and the engine compartment 10a is formed by these components. The vehicle may include various engine-equipped models such as fuel-powered vehicles and hybrid vehicles.

[0086] Since the motorized device 10 includes the exhaust assembly 100 described above, it naturally possesses all the beneficial effects of the exhaust assembly 100, which will not be elaborated here.

[0087] In some embodiments, along the forward direction of the motor 10, the second muffler 120 is disposed on the front side of the engine 200.

[0088] In the scenario where the motor equipment 10 is a vehicle, this design helps to keep the second muffler 120 and its exhaust port 120a at a distance from sensitive components such as the battery pack at the rear of the vehicle, thereby avoiding concentrated heat radiation from high-temperature exhaust gases to components such as the battery pack and reducing the risk of thermal damage to the vehicle chassis from the exhaust components.

[0089] In some embodiments, the first muffler 110 and the second muffler 120 of the engine assembly 1000 are both located at the bottom of the engine compartment 10a.

[0090] The second muffler 120 needs to exhaust gas into the air. It is located at the bottom of the engine compartment 10a. It can make use of the open space under the engine compartment 10a to allow the exhaust gas to be discharged smoothly, avoid the exhaust path from interfering with other components in the engine compartment 10a, and simplify the exhaust pipe layout and improve exhaust efficiency.

[0091] like Figure 4 and Figure 5 As shown, in some embodiments, the motor device 10 further includes an electric drive assembly 2000 located within the engine compartment 10a and on the side of the engine 200 of the engine assembly 1000 along a third direction Y, which is perpendicular to the second direction X and the first direction Z.

[0092] Within the engine compartment 10a, the space on both sides of the engine 200 along the first direction Z and the second direction X is occupied by various components of the exhaust assembly 100. There is unused space on one side of the engine 200 along the third direction Y. Placing the electric drive assembly 2000 here utilizes this redundant space along the third direction Y of the engine 200, achieving compact component integration and avoiding space waste. The electric drive assembly 2000 may include components such as a motor, reducer, and motor controller, and its structure varies, which is not limited in this application.

[0093] The term "multiple" in this document refers to two or more. The term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the preceding and following related objects; in formulas, the character " / " indicates a "division" relationship between the preceding and following related objects. Additionally, it should be understood that in the description of the embodiments of this application, terms such as "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or order.

[0094] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0095] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

Claims

1. An exhaust assembly, characterized in that, For installation within an engine compartment (10a), wherein an engine (200) is disposed, the engine (200) having an exhaust port (200a), the exhaust assembly (100) comprising: A first muffler (110) is disposed on one side of the engine (200) along a first direction and is used to connect to the exhaust port (200a). A second muffler (120) is disposed on one side of the engine (200) along a second direction and communicates with the first muffler (110), the second direction being perpendicular to the first direction; along the second direction, the second muffler (120) is opposite to the first muffler (110).

2. The exhaust assembly according to claim 1, characterized in that, The exhaust assembly (100) also includes: The first exhaust pipe (130) extends along the second direction, is located between the first muffler (110) and the second muffler (120), and is connected to the first muffler (110) and the second muffler (120).

3. The exhaust assembly according to claim 1, characterized in that, The second muffler (120) has an outlet (120a) located on the side of the second muffler (120) facing the first muffler (110).

4. The exhaust assembly according to claim 3, characterized in that, The angle α between the outlet (120a) and the plane containing the second direction and the third direction is 40°~50°, and the third direction is perpendicular to the second direction and the first direction.

5. The exhaust assembly according to claim 3, characterized in that, The second silencer (120) has a plurality of outlets (120a) spaced apart along a third direction, which is perpendicular to the second direction and the first direction.

6. The exhaust assembly according to any one of claims 1-5, characterized in that, The exhaust assembly (100) also includes: A filter module (140) is disposed on the side of the engine (200) away from the second muffler (120) and connected to the exhaust port (200a) and the first muffler (110) for filtering the gas discharged from the exhaust port (200a).

7. The exhaust assembly according to claim 6, characterized in that, The exhaust assembly (100) also includes: The second exhaust pipe (150) is connected to the first muffler (110) and the filter module (140), and the second exhaust pipe (150) has a smooth transition.

8. The exhaust assembly according to claim 7, characterized in that, The second exhaust pipe (150) has a first flow channel (151), a second flow channel (152) and a third flow channel (153) connected in sequence. The first flow channel (151) is connected to the first muffler (110), and the third flow channel (153) is connected to the filter module (140). The second flow channel (152) is smoothly connected to the first flow channel (151) and the third flow channel (153).

9. The exhaust assembly according to claim 6, characterized in that, The exhaust assembly (100) also includes: A turbocharger (160) is disposed on the side of the engine (200) away from the second muffler (120) and is connected to the exhaust port (200a) and the filter module (140).

10. The exhaust assembly according to claim 9, characterized in that, Along the first direction, the booster (160) and the filter module (140) are arranged in sequence.

11. An engine assembly, characterized in that, include: Engine (200) with exhaust port (200a); The exhaust assembly (100) according to any one of claims 1-10, wherein the first muffler (110) of the exhaust assembly (100) is disposed on one side of the engine (200) along a first direction and communicates with the exhaust port (200a); and the second muffler (120) of the exhaust assembly (100) is disposed on one side of the engine (200) along a second direction, the second direction being perpendicular to the first direction.

12. A motorized device, characterized in that, include: The load-bearing structure (3000) has an engine compartment (10a). The engine assembly (1000) of claim 11 is disposed within the engine compartment (10a).

13. The motorized equipment according to claim 12, characterized in that, Along the forward direction of the motorized equipment, the second muffler (120) is disposed on the front side of the engine (200).

14. The motorized equipment according to claim 12, characterized in that, The first muffler (110) and the second muffler (120) of the engine assembly (1000) are both located at the bottom of the engine compartment (10a).

15. The motorized equipment according to claim 12, characterized in that, The motorized equipment also includes: An electric drive assembly (2000) is located within the engine compartment (10a) and on one side of the engine (200) of the engine assembly (1000) along a third direction, the third direction being perpendicular to the second direction and the first direction.

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