Turbocharged engine and vehicle

Abstract

The utility model provides a turbo supercharged engine and a vehicle, relates to the technical field of vehicle power plant, the turbo supercharged engine comprises a V-shaped engine and two turbo superchargers arranged on the V-shaped engine, the upper part of the V-shaped engine is provided with a V-shaped groove, the two turbo superchargers are both arranged in the V-shaped groove, and the two turbo superchargers are arranged in the V-shaped groove. Seen from the length direction of the V-shaped groove, the gas compressor gas outlet pipes of the two turbochargers are located on the same side of the gas compressor gas inlet pipe. According to the turbo supercharged engine, the gap between the two turbo superchargers can be minimized, the interference problem caused when the two driving connecting rods are both arranged in the middle of the V-shaped groove does not need to be worried about, and therefore the occupied space of the turbo supercharged engine is reduced, and the purposes that the whole turbo supercharged engine is compact in arrangement and small in size are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle power device technical field, especially a turbocharged engine, simultaneously, the utility model relates to the vehicle with the turbocharged engine. BACKGROUND

[0002] The turbocharged engine refers to the engine equipped with turbocharger, and is a kind of vehicle power device.At present, to improve the performance such as power, torque of turbocharged engine, part of manufacturers adopt the scheme of increasing the number of turbocharger to improve the power and torque of complete machine.Meanwhile, increasing the number of turbocharger can also greatly improve fuel economy.

[0003] In prior art, for the engine with increased number of turbocharger, the method of engine miniaturization is usually adopted to reduce the space occupied by the turbocharged engine, and the engine miniaturization is mainly realized by adjusting the structure of parts in engine to reduce the volume of engine.

[0004] However, the miniaturization of vehicle power device has been the pursuit target of each manufacturer, and increasing the number of turbocharger will inevitably increase the occupied volume, which does not meet the demand of manufacturer for miniaturization of turbocharged engine. SUMMARY

[0005] Therefore, the utility model aims at providing a turbocharged engine, which can reduce the occupied space while increasing the number of turbocharger.

[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] A turbocharged engine, comprising a V-type engine and two turbochargers arranged on the V-type engine.

[0008] The upper part of the V-type engine is provided with a V-type groove, and the two turbochargers are arranged in the V-type groove.

[0009] When viewed along the length direction of the V-type groove, the compressor outlet pipes of the two turbochargers are located on the same side of the compressor inlet pipes.

[0010] Further, the turbine shafts of the two turbochargers are axially parallel to the length direction of the V-type groove.

[0011] Further, the compressor outlet pipes of the two turbochargers are located above the side of the compressor inlet pipes.

[0012] Further, the V-type engine comprises two exhaust manifolds arranged in the V-type groove, and the turbine inlet pipes of the two turbochargers are in one-to-one correspondence with the two exhaust manifolds.

[0013] Further, the included angle alpha between the end face of each exhaust manifold connected with the corresponding turbine inlet pipe and the plumb line is between 60° and 80°.

[0014] Further, the corresponding turbine inlet pipe and the exhaust manifold are connected through plug-in connection and are connected together through a clamp.

[0015] Further, each turbocharger and the V-type engine is provided with a positioning structure, and each positioning structure is used for limiting the position of the turbine inlet pipe in the circumferential direction of the corresponding exhaust manifold.

[0016] Further, each turbocharger and the V-type engine is connected with an oil outlet pipe, the V-type groove of the V-type engine is provided with an oil return hole corresponding to each oil outlet pipe, and each oil outlet pipe is inserted into the corresponding oil return hole.

[0017] Further, the oil outlet pipe and the oil return hole constitute the positioning structure.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The turbocharged engine disclosed by the utility model limits the arrangement mode of the two turbochargers, specifically, the compressor outlet pipes of the two turbochargers are located on the same side of the compressor inlet pipes when viewed along the length direction of the V-type groove, so that the interference problem of the two drive connecting rods arranged in the middle of the V-type groove can be avoided, the space in the V-type groove can be fully utilized, the clearance between the two turbochargers can be minimized, the drive connecting rods of the two turbochargers can be effectively prevented from interfering, the space occupied by the turbocharged engine can be reduced, and the compact arrangement and the reduced volume of the turbocharged engine can be achieved.

[0020] In addition, the turbine shafts of the two turbochargers are parallel to the length direction of the V-type groove, because the turbocharger itself has a certain length in the turbine shaft axial direction, so that the advantage of the V-type groove having a certain space in the length direction can be fully utilized, the two turbochargers can be matched by fully utilizing their own advantages, and the compact arrangement of the two turbochargers in the V-type groove can be achieved.

[0021] The two turbine superchargers are arranged in the V-shaped groove, and the two turbine superchargers are arranged in the V-shaped groove, and the two turbine superchargers are arranged in the V-shaped groove.

[0022] In addition, the two exhaust manifolds of the V-shaped engine are arranged in the V-shaped groove, and the turbine inlet pipes of the two turbine superchargers are respectively connected to the two exhaust manifolds, so that the two turbine superchargers supply air to the two rows of cylinders of the turbine supercharger, and the performance of the V-shaped engine is improved.

[0023] The included angle α between the end face of each exhaust manifold connected to the corresponding turbine inlet pipe and the plumb line is between 60° and 80°, which is beneficial to the compact arrangement of the two turbine superchargers, and is also beneficial to the arrangement of the inlet and outlet pipes of each turbine supercharger and the inlet and outlet oil pipes.

[0024] The corresponding turbine inlet pipe and exhaust manifold are connected by inserting and connecting, and are connected together through a clamp, which is beneficial to ensuring the connection reliability between the two and facilitating disassembly and assembly. A positioning structure is arranged between each turbine supercharger and the V-shaped engine for limiting the position of the turbine inlet pipe in the circumferential direction of the corresponding exhaust manifold, so that the turbine inlet pipe and the exhaust manifold can be inserted and assembled in place when they are connected by inserting and connecting, thereby improving the connection stability and reliability between the turbine supercharger and the engine, and preventing the clamp from loosening.

[0025] The oil outlet pipe and the oil return hole are used as the positioning structure, so that the oil outlet pipe and the oil return hole can return the lubricating oil in the turbine supercharger to the cylinder main oil passage while having the positioning function, and other positioning structures can be omitted.

[0026] Another purpose of the utility model is to provide a vehicle, wherein the vehicle is provided with the turbocharged engine as described above.

[0027] The vehicle provided by the utility model has the advantages that the compact structure and small space occupation of the turbocharged engine make it more convenient to arrange the parts in the engine cabin, and the convenience of vehicle maintenance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings that form a part of the utility model are used to provide a further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute an improper limitation on the utility model. In the drawings:

[0029] Figure 1 An exemplary partial left view of the turbocharged engine according to the utility model embodiment one;

[0030] Figure 2 An exemplary partial top view of the turbocharged engine according to Embodiment 1 of the present application;

[0031] Figure 3 An exemplary partial right view of the turbocharged engine according to Embodiment 1 of the present application;

[0032] Figure 4 An exemplary partial sectional view of the turbocharged engine according to Embodiment 1 of the present application.

[0033] Explanation of Reference Signs:

[0034] 1, V-type engine; 2, turbocharger; 3, clamp;

[0035] 101, cylinder block; 102, cylinder head; 103, cylinder head cover; 104, exhaust manifold;

[0036] 1021, oil take-out port;

[0037] 201, turbine intake pipe; 202, turbine exhaust pipe; 203, compressor intake pipe; 204, compressor exhaust pipe; 205, oil inlet pipe; 206, oil outlet pipe; 207, controller; 208, drive link; 209, oil inlet port;

[0038] 2051, main oil inlet pipe; 2052, branch oil inlet pipe;

[0039] 20511, protective sleeve; a, V-shaped groove; b, plumb line. DETAILED DESCRIPTION

[0040] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0041] In the description of the present application, it should be noted that the orientation or position relationship shown based on the drawings is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] In addition, in the description of the utility model, unless otherwise expressly limited, the terms "mounting", "connecting", "connection", "connector" should be understood broadly. For example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate media, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood in combination with specific circumstances.

[0043] In the drawings of the utility model, the front-rear direction is the front-rear direction of the vehicle, usually refers to the length direction of the vehicle, the left-right direction is the left-right direction of the vehicle, usually refers to the width direction of the vehicle, the up-down direction is the height direction of the vehicle, in the drawings: the arrow front points to the head of the vehicle, the arrow rear points to the tail of the vehicle, the arrow top points to the top of the vehicle, the arrow bottom points to the bottom of the vehicle. Sitting in the driving position faces the vehicle head direction, the side where the left hand is located is the left side, the side where the right hand is located is the right side, in the drawings, the arrow left points to the left side of the vehicle, the arrow right points to the right side of the vehicle.

[0044] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0045] Embodiment one

[0046] Turbocharged engine refers to the engine equipped with turbocharger, and is a kind of vehicle power device. Engine is a kind of power device, which can convert heat energy, electric energy or chemical energy into mechanical energy to drive various mechanical equipment to operate.

[0047] Turbocharger is actually an air compressor, which increases the intake air by compressing air, and uses the inertial impact force of exhaust gas discharged by engine to push the turbine in turbine, and the turbine drives the impeller (impeller in compressor) on the same shaft, and the impeller sends the air from the air cleaner duct to increase the pressure and enter the cylinder of engine.

[0048] At present, in order to improve the performance of turbocharged engine such as power, torque, etc., some manufacturers adopt the scheme of increasing the number of turbochargers to improve the power and torque of the whole machine. At the same time, increasing the number of turbochargers can also greatly improve the fuel economy.

[0049] Among them, the application of double turbocharger is particularly remarkable. This technology effectively improves the power and torque output of engine by configuring two turbochargers on the engine. Double turbocharger can more fully utilize the air in intake manifold, increase the fuel combustion efficiency in cylinder, so as to improve the power performance of the whole machine, and also has a significant positive effect on fuel economy, reduces the fuel consumption required for unit power or torque output.

[0050] Miniaturization of vehicle power units has always been a goal pursued by manufacturers. Miniaturization of vehicle power units not only helps to reduce the curb weight of vehicles and improve fuel efficiency, but also reduces carbon emissions to a certain extent, meeting increasingly stringent environmental regulations.

[0051] In existing technologies, for engines with an increased number of turbochargers, the common approach is engine miniaturization to reduce the space occupied by such turbocharged engines. Engine miniaturization primarily involves adjusting the structure of internal engine components to reduce engine size, such as using a more compact cylinder arrangement, shortening the crankshaft stroke, and optimizing the combustion chamber shape. However, increasing the number of turbochargers inevitably increases the occupied volume, which does not meet manufacturers' requirements for miniaturized turbocharged engines.

[0052] This embodiment relates to a turbocharged engine, which also includes two turbochargers. Furthermore, by rationally arranging the two turbochargers, the overall structure of the turbocharged engine is compact and occupies less space.

[0053] An exemplary structure of the turbocharged engine in this embodiment is as follows: Figures 1 to 3 As shown, in terms of overall structure, the turbocharged engine of this embodiment mainly includes a V-type engine 1 and two turbochargers 2 disposed on the V-type engine 1.

[0054] The V-type engine 1 has a V-shaped groove a on its upper part, and both turbochargers 2 are located in the V-shaped groove a. Looking along the length of the V-shaped groove a, the compressor outlet pipes 204 of the two turbochargers 2 are located on the same side of the compressor inlet pipe 203.

[0055] To better understand the structure of the turbocharged engine in this embodiment, please refer to the following: Figures 1 to 3 The structure of the V-type engine 1 will be described below. The structure of the V-type engine 1 in this embodiment can be referenced from existing technologies. For example... Figure 1 As shown, the upper part of the cylinder body 101 is provided with two cylinder heads 102, and the two cylinder heads 102 are respectively provided with cylinder head covers 103. The two cylinder heads 102, the two cylinder head covers 103 and the cylinder body 101 form a V-shaped groove a.

[0056] Next, refer to Figures 1 to 3 A brief description of the structure of turbocharger 2 is provided. Turbocharger 2 is also a structure in the prior art. Turbocharger 2 mainly consists of two parts: a turbine and a compressor. The turbine intake pipe 201 is connected to the engine exhaust manifold 104, and the turbine outlet pipe 202 is connected to, for example, a muffler. The compressor intake pipe 203 is connected to the air filter, and the compressor outlet pipe 204 is connected to the engine intake port.

[0057] The turbine inside the turbine and the impeller inside the compressor are arranged coaxially and are connected by a drive rod 208. The extension direction of the drive rod 208 is basically consistent with the axial direction of the turbine and the impeller. On the housing of the turbocharger 2, there is also a controller 207 located at one end of the drive rod 208.

[0058] In this embodiment, the two turbochargers 2 are identical except for their arrangement, which can reduce the cost of parts manufacturing, sample management fees, assembly line costs, etc.

[0059] By fully mounting the two turbochargers 2 within the V-groove a of the V-type engine 1, the space between the two banks of cylinders can be fully utilized, significantly reducing the overall size of the turbocharged engine. Each turbocharger 2 can independently drive the exhaust of one bank of cylinders, achieving efficient utilization of exhaust gas pulse energy.

[0060] In addition, installing both turbochargers 2 in the V-groove a can effectively shorten the length of the intake and exhaust passages of each turbocharger 2, effectively reduce turbo lag, and thus improve throttle response speed.

[0061] As in this embodiment, refer to Figure 2 As shown, the oil inlet 209 of each turbocharger 2 is arranged facing upwards, while the reference... Figure 4 As shown, the oil outlet of each turbocharger 2 is arranged downwards, so that the oil intake port 1021 is arranged on the cylinder head 102, and the oil return port is arranged in the area of ​​the bottom wall of the V-groove a on the upper part of the cylinder block 101, and the oil return port is connected to the main oil passage of the cylinder block 101, which can effectively shorten the length of the intake and exhaust passages.

[0062] Meanwhile, the location of the oil return port allows the oil flowing back from the turbocharger 2 to the V-type engine 1 to be cooled by the cooling channels of the cylinder block 101 itself, thereby effectively reducing the temperature of the oil when it flows back to the oil pan. This helps the oil work at a suitable temperature and can better extend the service life of the engine.

[0063] Furthermore, looking along the length of the V-groove a, the compressor outlet pipes 204 of the two turbochargers 2 are located on the same side of the compressor intake pipe 203. Specifically, the length of the V-groove a is arranged along the longitudinal direction of the vehicle, and Figure 1 This is a schematic diagram of the structure of a turbocharged engine viewed from the front to the rear of the vehicle.

[0064] The compressor outlet pipes 204 of the two turbochargers 2 are located on the same side of the compressor intake pipes 203, for example, referring to... Figure 1As shown in the structure, the left turbocharger 2 has its compressor inlet pipe 203 located above and left of the compressor outlet pipe 204, the right turbocharger 2 has its compressor inlet pipe 203 located above and left of the compressor outlet pipe 204 as well, and the outlet of the compressor outlet pipe 204 and the inlet of the compressor inlet pipe 203 of each turbocharger 2 are arranged towards the front of the vehicle.

[0065] In the prior art, the two turbochargers 2 are generally arranged symmetrically, and the two drive connecting rods 208 are arranged in the middle of the V-shaped groove, so that a movement envelope space of the drive connecting rods 208 needs to be reserved between the two turbochargers 2, which occupies the space in the V-shaped groove.

[0066] In the arrangement of the embodiment, there is no interference problem when the two drive connecting rods 208 are arranged in the middle of the V-shaped groove, and the space in the V-shaped groove a can be fully utilized to minimize the gap between the two turbochargers 2, which can effectively prevent the interference of the drive connecting rods 208 of the two turbochargers 2, thereby reducing the space occupied by the turbocharged engine, and achieving the purpose of compact arrangement and small volume of the turbocharged engine. While maintaining the inherent advantages of the V-type engine 1, high-efficiency integration of the two turbochargers 2 can be achieved, which is particularly suitable for power upgrading requirements of high-performance vehicles.

[0067] In order to further reduce the occupied space, as a preferred embodiment, the turbine shafts of the two turbochargers 2 are both parallel to the length direction of the V-shaped groove a.

[0068] It should be noted that because the V-shaped groove a itself has a certain space in the length direction, parallel arrangement of the turbine shafts can more effectively utilize this space and avoid interference with other components. For example, if the turbine shafts are arranged transversely (i.e. perpendicular to the length direction of the V-shaped groove a), more transverse space may be needed, and the space of the V-shaped groove a in this direction is limited, especially in the case of compact engine design, so that the turbine shafts of the two turbochargers 2 are parallel to the length direction of the V-shaped groove a, which can more reasonably utilize the space of the V-shaped groove a.

[0069] The V-shaped groove a is located between the two banks of cylinders of the V-type engine 1, and the length direction of the V-shaped groove a is along the length direction of the crankshaft of the V-type engine 1. When arranged on the vehicle, the length direction of the V-shaped groove a is the front-rear direction of the vehicle. The turbine shafts of the turbochargers 2 are parallel to the length direction of the V-shaped groove a, which means that the axes of the turbine shafts extend along the front-rear direction of the vehicle or are longitudinal.

[0070] In this embodiment, the turbine shafts of the turbochargers 2 are arranged in the axial direction parallel to the length direction of the V-shaped groove a. This arrangement makes the layout of the exhaust manifold 104 more direct while making the best use of the shape of the V-shaped groove a. Since the exhaust manifold 104 is usually drawn from the inside of the cylinder head 102 and needs to be connected to the turbine, if the turbine shafts of the turbochargers 2 are arranged in the longitudinal direction, the exhaust manifold 104 can be more smoothly connected to the turbine, the bending of the exhaust manifold 104 can be reduced, the exhaust resistance can be reduced, and the response efficiency of the turbine can be improved. In addition, since the exhaust manifold 104 can be shorter, the heat loss can be reduced, and the turbine efficiency can be improved.

[0071] Still referring to Figures 1 to 3 , as a preferred embodiment, the compressor outlet pipes 204 of the two turbochargers 2 are arranged above the compressor inlet pipes 203 on the side. For example, referring to the structure shown in Figure 1 , the compressor inlet pipe 203 of the left turbocharger 2 is arranged above the compressor outlet pipe 204 on the left, and the compressor inlet pipe 203 of the right turbocharger 2 is also arranged above the compressor outlet pipe 204 on the left.

[0072] It should be understood that if the compressor inlet pipe 203 of the left turbocharger 2 is arranged above the compressor outlet pipe 204 on the right, the compressor inlet pipe 203 of the right turbocharger 2 is also arranged above the compressor outlet pipe 204 on the right.

[0073] In this embodiment, arranging the compressor outlet pipes 204 above the inlet side helps to form a more smooth airflow path. Such a layout can reduce the turning and obstruction of airflow inside the turbocharger 2, thereby reducing energy loss, improving turbocharging efficiency, and helping to reduce the vibration and noise of the turbocharger 2, improving the overall smoothness of operation.

[0074] In addition, from the aspect of space utilization, the space in the engine compartment is usually very limited. Arranging the compressor outlet pipes 204 of the two turbochargers 2 on the side can more effectively utilize the vertical space and avoid interference with other components of the V-type engine 1. This layout also helps to simplify the connection structure of the turbocharger 2 and the V-type engine 1, reducing the complexity of installation and maintenance.

[0075] In addition, from the aspect of heat dissipation performance, the turbocharger 2 generates a large amount of heat during operation. Arranging the compressor outlet pipes 204 on the side can better utilize natural convection or forced convection for heat dissipation, preventing the turbocharger 2 from overheating. Good heat dissipation performance helps to prolong the service life of the turbocharger 2 and improve the overall reliability of the turbocharged engine.

[0076] The layout of the compressor outlet pipe 204 located above and to the side of the compressor inlet pipe 203 also places the drive connecting rod 208 and the controller 207 at a higher position. Compared with the existing symmetrical arrangement, the wading height of the turbocharger is increased compared with the conventional engine arrangement. The height of the drive connecting rod 208 and the controller 207 is increased by approximately 300mm, which can reduce the risk of wading for the turbocharger 2 and improve the overall lifespan of the turbocharger 2.

[0077] It is evident that by placing the compressor outlet pipes 204 of both turbochargers 2 on the side and above the compressor intake pipe 203, the airflow path can be optimized, the space utilization rate can be improved, the heat dissipation performance and the intake and exhaust efficiency can be improved, thereby enhancing the overall performance and reliability of the turbocharged engine.

[0078] As a preferred implementation method, the following is still referred to Figures 1 to 3 As shown, the V-type engine 1 includes two exhaust manifolds 104 located in the V-shaped groove a, and the turbine intake pipes 201 of the two turbochargers 2 are connected to the two exhaust manifolds 104 one by one.

[0079] It should be noted that in the design of the V-type engine 1, setting the two exhaust manifolds 104 in the V-shaped groove a and connecting the turbine intake pipes 201 of the two turbochargers 2 to the two exhaust manifolds 104 respectively is indeed a preferred implementation method.

[0080] The V-type engine 1 is inherently compact in design. Placing the exhaust manifold 104 within the V-shaped groove a further leverages this advantage. This layout reduces the space occupied in the engine compartment, resulting in a more compact and rational overall vehicle layout. Simultaneously, this design also helps simplify the exhaust system layout, reducing the length and bends of the exhaust manifold 104, thereby lowering exhaust resistance and pressure loss, and improving exhaust efficiency and turbocharger response speed.

[0081] The exhaust manifold 104 is responsible for expelling the exhaust gases from the cylinders after combustion, and these exhaust gases are very hot. By placing the exhaust manifold 104 in the V-groove a, the engine's own cooling system can be used to assist the cooling of the turbocharger 2's lubrication system.

[0082] Connecting the turbine intake pipes 201 of the two turbochargers 2 to the two exhaust manifolds 104 respectively ensures that each turbocharger 2 can obtain sufficient exhaust gas energy to drive its rotation. This design helps to reduce mutual interference and energy loss of exhaust gas in the exhaust system, and improves the response speed and boosting efficiency of the turbochargers 2.

[0083] At the same time, since each turbocharger 2 independently receives exhaust gas from its corresponding cylinder, boost pressure and engine output power can be controlled more precisely.

[0084] In summary, the two exhaust manifolds 104 are arranged in the V-shaped groove a, and the turbine intake pipes 201 of the two turbochargers 2 are respectively communicated with the two exhaust manifolds 104, which can combine the advantages of compact structure, heat management, turbocharging efficiency and balance, and provide excellent performance and reliability for the V-type engine 1.

[0085] As a preferred embodiment, the included angle a between the end surface of each exhaust manifold 104 connected with the corresponding turbine intake pipe 201 and the plumb line is between 60° and 80°, such as 60°, 70°, 80°, etc.

[0086] For example, as shown in Figure 2 The included angle a between the end surface of the left exhaust manifold 104 connected with the corresponding turbine intake pipe 201 and the plumb line is 75°, and the included angle a between the end surface of the right exhaust manifold 104 connected with the corresponding turbine intake pipe 201 and the plumb line is 68°, which is more conducive to saving the occupied space.

[0087] In the installation mode of the turbocharger 2, the included angle a between the end surface of each exhaust manifold 104 connected with the corresponding turbine intake pipe 201 and the plumb line b is between 60° and 80°, which can make the two turbochargers 2 more compactly arranged in the V-shaped groove a, and a reasonable included angle can optimize the space layout and improve the overall aesthetics.

[0088] In addition, the design of the included angle a also considers the connection efficiency and airflow smoothness between the exhaust manifold 104 and the turbine intake pipe 201, and limits the included angle a to be between 60° and 80°, which can ensure that the exhaust gas flows smoothly from the exhaust manifold 104 into the turbine intake pipe 201, reduce energy loss, and improve the overall efficiency of the turbocharging system. A proper included angle a also helps to enhance the connection stability of the turbine intake pipe 201 and the exhaust manifold 104, thereby reducing the risk of leakage.

[0089] In summary, the included angle a between the end surface of each exhaust manifold 104 connected with the corresponding turbine intake pipe 201 and the plumb line b is between 60° and 80°, which can ensure that the exhaust gas flows smoothly from the exhaust manifold 104 into the turbine intake pipe 201, improve the turbocharging efficiency, and at the same time maintain good connection stability and lower manufacturing difficulty.

[0090] As a preferred embodiment, the corresponding turbine inlet pipe 201 and exhaust manifold 104 are connected by plug-in connection and fixed together by the clamp 3. It should be noted that the preferred embodiment of plug-in connection of the turbine inlet pipe 201 and the exhaust manifold 104 and fixation by the clamp 3 can refer to the existing connection mode for specific implementation, and such connection mode has many advantages.

[0091] For example, after plug-in connection of the turbine inlet pipe 201 and the exhaust manifold 104, the connection is simple and firm, and the assembly and disassembly of the turbine inlet pipe 201 and the exhaust manifold 104 are also convenient. Such connection mode does not need complex bolts or welding, and can greatly simplify the installation process.

[0092] The clamp 3 as a fastening device can ensure the stability and sealing of the plug-in connection. By appropriate fastening force, the clamp 3 can tightly combine the turbine inlet pipe 201 and the exhaust manifold 104 together, prevent exhaust leakage, and ensure the normal operation of the turbocharger 2.

[0093] In addition, the plug-in connection and the design of the clamp 3 make the installation of the turbocharger 2 have high adaptability, because such connection mode can adapt to turbine inlet pipes 201 and exhaust manifolds 104 of different sizes and shapes, and engineers can select and adjust according to the specific needs of the V-type engine 1.

[0094] In addition, the plug-in connection and the fixation by the clamp 3 also facilitate replacement or adjustment during engine maintenance and upgrading, which is conducive to reducing maintenance cost and time. The combination of plug-in connection and fixation by the clamp 3 is crucial for sealing performance in high-pressure and high-temperature exhaust environment.

[0095] Through the close cooperation of plug-in connection and the clamp 3, exhaust leakage can be prevented, and negative effects on engine performance and environment can be avoided. The design of plug-in connection and the clamp 3 makes the inspection and maintenance of the turbocharging system more convenient and fast. Engineers can check the connection of the inlet pipe and the exhaust manifold 104, and the running state of the turbocharger 2 by simply disassembling the clamp 3. Such design helps to find and solve problems in time, and ensures the normal operation of the V-type engine 1.

[0096] It can be seen that the preferred embodiment of plug-in connection of the turbine inlet pipe 201 and the exhaust manifold 104 and fixation by the clamp 3 not only improves the simplicity and firmness of the installation of the turbocharger 2, but also enhances its adaptability and sealing performance. At the same time, such design also helps to reduce maintenance cost and time, and can provide a more reliable and efficient turbocharging solution for turbocharged engines.

[0097] As a preferred embodiment, positioning structures are provided between each turbocharger 2 and the V-type engine 1, and each positioning structure is used to limit the position of the turbine inlet pipe 201 in the circumferential direction of the corresponding exhaust manifold 104.

[0098] In the integrated design of the V-type engine 1 and the turbocharger 2, the positioning structure is used to limit the position of the turbine inlet pipe 201 in the circumferential direction of the corresponding exhaust manifold 104, which can ensure that each turbocharger 2 is smoothly installed at the pre-designed installation position.

[0099] The main function of the positioning structure is to ensure that the turbine inlet pipe 201 can be accurately and stably inserted into the predetermined position of the exhaust manifold 104. By limiting the movement of the turbine inlet pipe 201 in the circumferential direction, the positioning structure can improve the efficiency of the assembly of the turbocharger 2 on the V-type engine 1, making the installation and disassembly of the turbine inlet pipe 201 more convenient and fast, thereby reducing the maintenance cost and time.

[0100] The positioning structure can take various forms, including but not limited to the following, such as buckle positioning, pin positioning, and flange positioning.

[0101] The buckle structure is provided between the exhaust manifold 104 or the turbine inlet pipe 201, and the circumferential movement of the inlet pipe is limited by the cooperation of the buckle and the corresponding component. This structure is simple and easy to implement, and is convenient for installation and disassembly. In addition, for example, pin positioning can be provided with pins and pin holes on the exhaust manifold 104 and the turbine inlet pipe 201, respectively, and the circumferential movement of the inlet pipe is limited by inserting the pin into the pin hole. This structure has high positioning accuracy and stability, but the installation and disassembly are relatively complex.

[0102] Alternatively, flange positioning structure is also feasible, which is provided with flanges on the connecting end of the exhaust manifold 104 and the turbine inlet pipe 201, and the two are tightly connected together through the bolts or nuts on the flanges, while limiting the circumferential movement of the inlet pipe. This structure has high connection strength and sealing performance, and is suitable for high-pressure and high-temperature exhaust environment, but it will use more bolts, which will affect the assembly efficiency.

[0103] As a preferred embodiment, each turbocharger 2 and the V-type engine 1 are connected with an oil outlet pipe 206, and the V-type groove a of the V-type engine 1 is provided with an oil return hole corresponding to each oil outlet pipe 206, and each oil outlet pipe 206 is inserted into the corresponding oil return hole.

[0104] As in the above structure, the oil outlet pipe 206 is responsible for guiding the lubricating oil in the turbocharger 2 out, ensuring that the turbocharger 2 can be fully lubricated and cooled when running at high speed. The oil return hole is arranged in the V-shaped groove a of the V-type engine 1, corresponding to the oil outlet pipe 206, for receiving the lubricating oil flowing out of the turbocharger 2 and guiding it back into the lubricating system of the engine, which can ensure that the turbocharger 2 is continuously lubricated and cooled, thereby improving its operating efficiency and service life.

[0105] The oil outlet pipe 206 is directly inserted into the corresponding oil return hole to form a tight connection. This connection method is simple and reliable, easy to install and disassemble, and can reduce the number of pipes and connectors, thereby reducing the complexity and cost of the structure. In order to ensure the sealing of the lubricating oil, appropriate sealing materials or structures need to be used between the oil outlet pipe 206 and the oil return hole to prevent leakage of the lubricating oil.

[0106] One end of the oil outlet pipe 206 is connected to the lubricating system of the turbocharger 2, and the other end is designed in a plug-in shape matching the oil return hole. The plug-in end of the oil outlet pipe 206 can be designed with a elastic buckle structure to better match the oil return hole and ensure sealing. For details, refer to the structure in the prior art.

[0107] The oil return hole is located in the V-shaped groove a of the V-type engine 1, corresponding to the oil outlet pipe 206. The shape and size of the oil return hole need to match the plug-in end of the oil outlet pipe 206 to ensure that the two can be tightly matched. Positioning grooves or positioning protrusions can be provided around the oil return hole to further ensure the accurate insertion of the oil outlet pipe 206. For details of the structure of the oil return pipe and the oil return hole, refer to the prior art.

[0108] In addition, the design of the oil return hole in the V-shaped groove a can make full use of the space in the engine compartment, avoid interference with other components, and optimize the overall layout.

[0109] As in the present embodiment, there are two oil return holes, and each oil return hole is in communication with the main oil gallery in the engine block 101. Each turbocharger 2 has an oil outlet on one side facing the engine block 101, and each oil outlet is in communication with the corresponding oil return hole through the oil outlet pipe 206.

[0110] As a preferred embodiment, the oil outlet pipe 206 and the oil return hole form a positioning structure. Specifically, when the left turbocharger 2 is installed, the oil outlet pipe 206 on the turbocharger 2 is inserted into the corresponding oil return hole, which can quickly locate the position of the turbo inlet pipe in the circumferential direction of the exhaust manifold 104.

[0111] Since the oil outlet pipe 206 and the oil return hole are also factors to be considered when the turbocharger 2 is installed, in the present embodiment, the oil outlet pipe 206 and the oil return hole are designed as positioning structures, so that the oil outlet pipe 206 and the oil return hole not only facilitate the return of the lubricating oil in the turbocharger 2 to the main oil gallery of the cylinder block 101, but also have the positioning function, and other positioning structures arranged at other positions can be omitted.

[0112] In the V-type engine 1, the turbochargers 2 are usually located on both sides of the V-shaped groove a, and the oil outlet pipe 206 and the oil return hole are connected to the lubricating system of the engine and the turbocharger 2 respectively. Designing the oil outlet pipe 206 and the oil return hole as positioning structures can ensure that the connection between the turbocharger 2 and the engine is more stable and reliable, and at the same time, the installation and disassembly process is simplified.

[0113] It should be noted that, in the actual installation process, since the installation modes of the two turbochargers 2 are the same. Therefore, the installation of the turbocharger on the left side is taken as an example here. First, the oil outlet pipe 206 is connected to the outlet of the turbocharger 2, and then during the installation process, when the oil outlet pipe 206 is inserted into the oil outlet and installed in place, it represents that the turbocharger inlet pipe 201 and the exhaust manifold 104 are assembled in place. At this time, the clamp 3 is connected, which can prevent the problem that the clamping force of the clamp 3 is small and the clamp is loose due to the assembly of the turbocharger inlet pipe 201 and the exhaust manifold 104.

[0114] By Figure 1 In combination Figure 4 As shown in FIG. 6, as a preferred embodiment, the oil inlet pipe 205 includes a main oil inlet pipe 2051 and two branch oil inlet pipes 2052 connected in parallel to one end of the main oil inlet pipe 2051; the other end of the main oil inlet pipe 2051 is in communication with the cylinder head 102, and the other ends of the two branch oil inlet pipes 2052 are respectively in one-to-one correspondence with the oil inlets 209 of the two turbochargers 2.

[0115] In the above structure, the main oil inlet pipe 2051 is the main part of the oil inlet pipe 205 system, one end of which is connected to the two branch oil inlet pipes 2052, and the other end of which is in communication with the oil outlet port 1021 of the cylinder head 102. There are two branch oil inlet pipes 2052, which are connected in parallel to one end of the main oil inlet pipe 2051 and play a role in shunting. Each turbocharger has an oil inlet 209, which is connected to the two branch oil inlet pipes 2052 respectively, so as to ensure that the oil can be supplied to the two turbochargers 2 respectively, and independent oil supply to the two turbochargers 2 is realized.

[0116] In the present embodiment, the oil outlet port 1021 is arranged on the left cylinder head 102, and it should be understood that the oil outlet port 1021 can also be arranged on the right cylinder head 102 in actual arrangement.

[0117] In a preferred embodiment, a protective sleeve 20511 is further sleeved on the main oil inlet pipe 2051 to prevent the main oil inlet pipe 2051 from being directly impacted, scratched or worn by external objects, thereby prolonging the service life of the oil pipe.

[0118] In the turbocharged engine of the embodiment, the oil inlet pipes 205 of the two turbochargers 2 are respectively communicated with the cylinder heads 102 of the V-type engine 1, the oil outlet pipes 206 of the two turbochargers 2 are respectively communicated with the upper portions of the cylinder blocks 101 of the V-type engine 1, and the oil inlet pipes 205 and the oil outlet pipes 206 are both located in the V-shaped groove a, so that each turbocharger 2 takes oil from the cylinder head 102 and discharges oil to the upper portion of the cylinder head 102, and the oil inlet pipes 205 and the oil outlet pipes 206 are both relatively short, which can improve the oil return rate and effectively prevent the oil temperature from being too high, thereby prolonging the service life of the V-type engine 1.

[0119] In the turbocharged engine of the embodiment, for the V-type engine 1 that needs to be equipped with double turbochargers 2, the double turbochargers 2 and the double exhaust manifolds 104 are arranged in the V-shaped groove at the top of the V-type engine 1 body, and the extension direction of the turbochargers 2 is consistent with the extension direction of the V-shaped groove, and the two turbochargers 2 are arranged in a close-to-parallel manner rather than in a symmetrical manner, so that the turbocharged engine is compactly arranged, which can solve the problems of large overall size and high part manufacturing cost of the turbocharged engine in the prior art, and at the same time, the wading height of the turbocharger is higher than that of the conventional engine, which is also beneficial to improving the service life of the turbocharger 2.

[0120] Embodiment Two

[0121] The embodiment relates to a vehicle provided with the turbocharged engine of embodiment one.

[0122] Since the vehicle adopts the turbocharged engine of embodiment one, the arrangement mode between the turbocharger 2 and the V-type engine 1 is particularly ingenious, the positioning structure formed by the oil outlet pipe 206 and the oil return hole ensures the close connection and stable work between the turbocharger 2 and the engine. This design not only improves the lubrication efficiency and operation stability of the engine, but also simplifies the installation and disassembly process and reduces the maintenance cost.

[0123] In addition, the turbocharged engine increases the intake air pressure by arranging two turbochargers 2, which can improve the intake air amount of the engine and thereby improve the power output. This makes the vehicle perform well in various road conditions, especially in acceleration and overtaking.

[0124] The vehicle of the embodiment can not only improve the power performance and fuel economy of the vehicle, but also optimize the space layout and improve the maintenance convenience, so that the vehicle owner can have a more comprehensive and high-quality driving experience.

[0125] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1.A turbocharged engine, characterized in that: it comprises a V-type engine (1) and two turbochargers (2) arranged on the V-type engine (1) ; the upper part of the V-type engine (1) is provided with a V-type groove (a), and the two turbochargers (2) are arranged in the V-type groove (a) ; as viewed along the length direction of the V-type groove (a), the compressor outlet pipes (204) of the two turbochargers (2) are located on the same side of the compressor inlet pipes (203). 2.The turbocharged engine according to claim 1, characterized in that: the turbine shafts of the two turbochargers (2) are both parallel to the length direction of the V-type groove (a). 3.The turbocharged engine according to claim 2, characterized in that: the compressor outlet pipes (204) of the two turbochargers (2) are both located above the side of the compressor inlet pipes (203). 4.The turbocharged engine according to any one of claims 1-3, characterized in that: the V-type engine (1) comprises two exhaust manifolds (104) arranged in the V-type groove (a), and the turbine inlet pipes (201) of the two turbochargers (2) are in one-to-one correspondence with the two exhaust manifolds (104). 5.The turbocharged engine according to claim 4, characterized in that: the included angle α between the end face of each exhaust manifold (104) connected with the corresponding turbine inlet pipe (201) and the plumb line is between 60° and 80°. 6.The turbocharged engine according to claim 4, characterized in that: the corresponding turbine inlet pipe (201) and the exhaust manifold (104) are connected by insertion, and are connected together by a clamp (3). 7.The turbocharged engine according to claim 6, characterized in that: a positioning structure is arranged between each turbocharger (2) and the V-type engine (1), and each positioning structure is used to limit the position of the turbine inlet pipe (201) in the circumferential direction of the corresponding exhaust manifold (104). 8.The turbocharged engine according to claim 7, characterized in that: an oil outlet pipe (206) is connected between each turbocharger (2) and the V-type engine (1), and an oil return hole corresponding to each oil outlet pipe (206) is arranged in the V-type groove (a) of the V-type engine (1), and each oil outlet pipe (206) is inserted into the corresponding oil return hole. 9.The turbocharged engine according to claim 8, characterized in that: the oil outlet pipe (206) and the oil return hole constitute the positioning structure. 10.A vehicle, characterized in that: the vehicle is provided with the turbocharged engine according to any one of claims 1-9.

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