Engine air inlet pipe, engine air inlet system and vehicle
By integrating multiple pipe joints on the main body of the engine intake pipe, the problem of complex structure of the engine intake system is solved, the compact design and multifunctional integration of the pipes are achieved, and the operating stability and environmental friendliness of the engine are improved.
Patent Information
- Application Number
- CN202423245818.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing engine intake system has a complex structural layout and a non-compact piping design, making it difficult to meet the needs of multiple functions.
An engine intake pipe is designed. By integrating multiple pipe joints on the intake pipe body, including a crankcase ventilation pipe joint, a pressure relief valve ventilation pipe joint, a fuel desorption pipe joint, a crankcase air supply pipe joint and an air compressor air intake pipe joint, multiple functions are integrated.
The structural layout of the engine intake system is simplified, making the pipeline design compact and beautiful, improving the assembly efficiency and stability of the engine intake system, extending the service life of the turbocharger and air compressor, and reducing the emission of fuel vapor and the risk of environmental pollution.
Smart Images
Figure CN223482787U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, and in particular to an engine intake pipe, an engine intake system having the engine intake pipe, and a vehicle having the engine intake system. Background Art
[0002] The engine intake system needs to perform functions such as crankcase ventilation, balancing intake pressure after turbocharging, providing exhaust gas to the fuel desorption pipe, supplying air to the air compressor, and replenishing air to the crankcase. In related technologies, multiple pipelines are connected to different locations within the engine intake system to achieve these multiple functions, resulting in a complex structural layout and a non-compact pipeline design. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide an engine intake pipe that enables the engine intake pipe to perform multiple functions, simplifies the structural layout of the engine intake system, and makes the piping design of the engine intake system more compact.
[0004] This utility model further proposes an engine intake system.
[0005] This utility model further proposes a vehicle.
[0006] An engine intake pipe according to an embodiment of the present invention includes: an intake pipe body defining a gas flow channel; and multiple pipe joints, all of which are disposed in the intake pipe body and are connected to the gas flow channel. The multiple pipe joints include at least two of the following: a crankcase ventilation pipe joint, a pressure relief valve vent pipe joint, a fuel desorption pipe joint, a crankcase air supply pipe joint, and an air compressor intake pipe joint.
[0007] According to the embodiment of the present utility model, the engine intake pipe can perform multiple functions by providing multiple pipe joints on the main body of the intake pipe, and the multiple pipe joints include at least two of the crankcase ventilation pipe joint, pressure relief valve vent pipe joint, fuel desorption pipe joint, crankcase air supply pipe joint, and air compressor intake pipe joint. This is beneficial to simplifying the structural layout of the engine intake system, thereby making the pipe design of the engine intake system compact and beautiful.
[0008] In some embodiments of this utility model, the intake pipe body includes: a first pipe section, a second pipe section and a third pipe section, wherein the second pipe section is connected between the first pipe section and the third pipe section, and the second pipe section is arc-shaped.
[0009] In some embodiments of this utility model, one of the multiple pipe joints is a crankcase ventilation pipe joint. Along the gas flow direction in the gas flow channel, the first pipe section is located upstream of the second pipe section, and the crankcase ventilation pipe joint is located in the first pipe section.
[0010] In some embodiments of this utility model, two of the multiple pipe joints are respectively a pressure relief valve vent pipe joint and a fuel desorption pipe joint, which are located in the second pipe section.
[0011] In some embodiments of this utility model, along the gas flow direction in the gas flow channel, the fuel desorption pipe joint is located upstream of the pressure relief valve vent pipe joint.
[0012] In some embodiments of this utility model, two of the multiple pipe joints are respectively the crankcase air supply pipe joint and the air compressor air intake pipe joint, and the crankcase air supply pipe joint and the air compressor air intake pipe joint are located in the third pipe section.
[0013] In some embodiments of this utility model, along the gas flow direction in the gas channel, the air compressor intake pipe joint is located upstream of the crankcase make-up air pipe joint.
[0014] In some embodiments of this utility model, multiple pipe joints are integrally formed with the intake pipe body; and / or the outer surface of the intake pipe body is provided with reinforcing ribs, which are connected to at least one pipe joint.
[0015] The engine intake system according to an embodiment of the present invention includes the engine intake pipe of the above embodiment.
[0016] The vehicle according to an embodiment of the present invention includes the engine intake system described in the above embodiment.
[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a schematic diagram of the engine intake system according to an embodiment of the present utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the engine intake pipe according to an embodiment of the present utility model.
[0021] Figure label:
[0022] Engine intake manifold 100;
[0023] Intake pipe body 1; gas flow channel 11; first pipe section 12; second pipe section 13; third pipe section 14; reinforcing rib 15;
[0024] Pipe connector 2; crankcase ventilation pipe connector 21; pressure relief valve vent pipe connector 22; fuel desorption pipe connector 23; crankcase air supply pipe connector 24; air compressor air intake pipe connector 25;
[0025] Engine intake system 200;
[0026] 3. Air intake duct; 4. Air filter front air pipe; 5. Air filter rear air intake pipe; 6. Intake hard pipe; 7. Pressure relief valve vent pipe; 8. Crankcase ventilation pipe; 9. Crankcase air supply pipe; 10. DETAILED DESCRIPTION
[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0028] The following is for reference. Figures 1-2 The engine intake manifold 100 according to an embodiment of the present invention is described.
[0029] like Figure 1 and Figure 2 As shown, the engine intake pipe 100 according to an embodiment of the present utility model includes: an intake pipe body 1, which defines a gas flow channel 11; and a plurality of pipe joints 2, which are all disposed on the intake pipe body 1 and are all connected to the gas flow channel 11. The plurality of pipe joints 2 include at least two of the following: crankcase ventilation pipe joint 21, pressure relief valve vent pipe joint 22, fuel desorption pipe joint 23, crankcase air supply pipe joint 24, and air compressor air intake pipe joint 25.
[0030] The intake manifold body 1 is a key component of the engine intake system 200. The intake manifold body 1 defines a gas flow channel 11, which provides a suitable channel for outside air to enter the engine, ensuring its normal operation. Multiple pipe joints 2 can be provided; for example, two, three, five, or more joints 2 can be used. All pipe joints 2 are located on the intake manifold body 1, and each joint 2 can form a branch channel. All branch channels are connected to the gas flow channel 11, facilitating air flow between the gas flow channel 11 and the branch channels.
[0031] Multiple pipe joints 2 may include at least two of the following: crankcase ventilation pipe joint 21, pressure relief valve vent pipe joint 22, fuel desorption pipe joint 23, crankcase air supply pipe joint 24, and air compressor intake pipe joint 25. For example, multiple pipe joints 2 may include two, three, or five of the following: crankcase ventilation pipe joint 21, pressure relief valve vent pipe joint 22, fuel desorption pipe joint 23, crankcase air supply pipe joint 24, and air compressor intake pipe joint 25. This arrangement allows for a reasonable number of pipe joints 2, enabling them to be arranged according to the actual needs of the engine intake system 200, thereby improving the versatility of the engine intake pipe 100. It also allows the engine intake pipe 100 to perform multiple functions, simplifying the structural layout of the engine intake system 200 and resulting in a more compact piping design.
[0032] Specifically, the intake manifold body 1 defines a gas flow channel 11, through which air enters the engine to ensure normal engine operation. Five pipe connectors 2 are provided, all located within the intake manifold body 1, and their branch channels are all connected to the gas flow channel 11. These five pipe connectors 2 include a crankcase ventilation pipe connector 21, a pressure relief valve vent pipe connector 22, a fuel desorption pipe connector 23, a crankcase air replenishment pipe connector 24, and an air compressor intake pipe connector 25. Connecting the crankcase ventilation pipe 9, pressure relief valve vent pipe 8, fuel desorption pipe, crankcase air replenishment pipe 10, and air compressor intake pipe to their respective pipe connectors 2 enables the engine intake manifold 100 to perform multiple functions, including crankcase ventilation, balancing intake pressure after turbocharging, fuel system desorption pipe exhaust, brake system air compressor intake, and crankcase air replenishment.
[0033] Therefore, by arranging multiple pipe joints 2 on the intake manifold body 1, and including at least two of the crankcase ventilation pipe joint 21, pressure relief valve vent pipe joint 22, fuel desorption pipe joint 23, crankcase air supply pipe joint 24, and air compressor intake pipe joint 25, the engine intake manifold 100 can perform multiple functions, which helps to simplify the structural layout of the engine intake system 200 and makes the pipe design of the engine intake system 200 more compact.
[0034] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the intake pipe body 1 may include: a first pipe section 12, a second pipe section 13 and a third pipe section 14, the second pipe section 13 being connected between the first pipe section 12 and the third pipe section 14, and the second pipe section 13 being arc-shaped.
[0035] The second pipe section 13 connects the first pipe section 12 and the third pipe section 14. Along the gas flow direction within the gas channel 11, the first pipe section 12 is located upstream of the second pipe section 13. In other words, along the gas flow direction within the gas channel 11, the first pipe section 12, the second pipe section 13, and the third pipe section 14 are arranged sequentially. The second pipe section 13 can be constructed in an arc shape. This arrangement makes the structure of the second pipe section 13 more reasonable. By constructing the second pipe section 13 in an arc shape, the shape of the intake pipe body 1 can be adapted to the vehicle layout, reducing the risk of interference between the intake pipe body 1 and other vehicle components. It also facilitates airflow within the second pipe section 13, reducing the risk of eddies and turbulence, thus ensuring smooth airflow to the engine and contributing to stable engine operation.
[0036] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, one of the multiple pipe joints 2 is a crankcase ventilation pipe joint 21. Along the gas flow direction in the gas flow channel 11, the first pipe section 12 is located upstream of the second pipe section 13, and the crankcase ventilation pipe joint 21 is located in the first pipe section 12.
[0037] Among them, one of the multiple pipe joints 2 is the crankcase ventilation pipe joint 21. The crankcase ventilation pipe joint 21 is used to connect the crankcase ventilation pipe 9 so that the crankcase can be connected to the gas flow channel 11 to realize the function of crankcase ventilation. This helps to maintain the pressure balance in the crankcase, reduce the risk of gas accumulation in the crankcase, thereby reducing the risk of engine wear caused by the accumulation of pressure and heat in the crankcase, and improving the safety and service life of the engine.
[0038] Along the gas flow direction within the gas flow channel 11, the first pipe section 12 is located upstream of the second pipe section 13. That is, the first pipe section 12 and the second pipe section 13 are arranged sequentially along the gas flow direction within the gas flow channel 11. The crankcase ventilation pipe connector 21 is located on the first pipe section 12, which allows for a reasonable positioning of the crankcase ventilation pipe connector 21, facilitating its connection to the crankcase via the crankcase ventilation pipe 9, thereby improving the assembly efficiency of the engine intake system 200.
[0039] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, two of the multiple pipe joints 2 are the pressure relief valve vent pipe joint 22 and the fuel desorption pipe joint 23, which are located in the second pipe section 13.
[0040] Among them, two of the multiple pipe joints 2 are the pressure relief valve vent pipe joint 22 and the fuel desorption pipe joint 23. The pressure relief valve vent pipe joint 22 is used to connect the pressure relief valve vent pipe 8 so that the turbocharger can be connected to the gas flow channel 11, thereby achieving the effect of balancing the intake pressure after turbocharging. This helps to maintain the working stability of the turbocharger, reduce the wear and damage risk of the turbocharger, and thus extend the service life of the turbocharger.
[0041] The fuel desorption pipe connector 23 is used to connect the fuel desorption pipe, thereby connecting the carbon canister to the gas flow channel 11, which facilitates the recovery and utilization of fuel vapor. Specifically, due to the volatility of gasoline, a certain pressure will be generated inside the fuel tank. If the fuel tank is completely sealed, the pressure will continuously increase as gasoline evaporates, potentially causing safety hazards. The carbon canister can absorb fuel vapor in the fuel tank, thus maintaining a stable fuel tank pressure. When the engine is running, the fuel vapor absorbed by the carbon canister can enter the intake manifold 1 through the fuel desorption pipe, mix with air, and then enter the combustion chamber for combustion. This improves fuel utilization, reduces the risk of environmental pollution caused by direct fuel vapor emissions, and also benefits the vehicle's economy.
[0042] The pressure relief valve vent pipe connector 22 and the fuel desorption pipe connector 23 are located in the second pipe section 13, which allows for a reasonable positioning of the pressure relief valve vent pipe connector 22 and the fuel desorption pipe connector 23. This facilitates the connection of the pressure relief valve vent pipe connector 22 to the turbocharger through the pressure relief valve vent pipe 8, and the connection of the fuel desorption pipe connector 23 to the carbon canister through the fuel desorption pipe. This improves the assembly efficiency of the engine intake system 200 and reduces the labor intensity of the assembly personnel.
[0043] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, along the gas flow direction in the gas flow channel 11, the fuel desorption pipe joint 23 is located upstream of the pressure relief valve vent pipe joint 22.
[0044] In this configuration, the fuel desorption pipe connector 23 is located upstream of the pressure relief valve vent pipe connector 22, along the gas flow direction within the gas flow channel 11. This means that the fuel desorption pipe connector 23 and the pressure relief valve vent pipe connector 22 are arranged sequentially along the gas flow direction within the gas flow channel 11. This arrangement ensures a reasonable positioning of the fuel desorption pipe connector 23 and the pressure relief valve vent pipe connector 22. When fuel vapor accumulates to a certain level in the carbon canister, it needs to be desorbed and sent into the combustion chamber for combustion in a timely manner. Positioning the fuel desorption pipe connector 23 upstream of the pressure relief valve vent pipe connector 22 ensures that fuel vapor can preferentially enter the gas flow channel 11 through the fuel desorption pipe connector 23 and be sent into the combustion chamber before the pressure relief valve opens. This reduces the risk of fuel vapor accumulation or even leakage at the pressure relief valve, thereby reliably improving the utilization rate of fuel vapor.
[0045] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, two of the multiple pipe joints 2 are crankcase air supply pipe joint 24 and air compressor air intake pipe joint 25, which are located in the third pipe section 14.
[0046] Among them, two of the multiple pipe joints 2 are crankcase air supply pipe joint 24 and air compressor air intake pipe joint 25. Crankcase air supply pipe joint 24 is used to connect crankcase air supply pipe 10 so that the crankcase is connected to the gas flow channel 11, which facilitates air supply to the crankcase, helps to balance the internal pressure of the crankcase, and also helps to introduce fresh air into the crankcase, thereby diluting the exhaust gas in the crankcase, reducing the oxidation rate of the engine oil, thus extending the service life of the engine oil and improving the lubrication performance of the engine.
[0047] The air compressor intake pipe connector 25 is used to connect the air compressor intake pipe so that the air compressor can be connected to the gas flow channel 11, which is conducive to the smooth intake of air by the air compressor and the conversion of mechanical energy into gas pressure energy. This allows the air compressor to provide compressed air to multiple systems of the vehicle (e.g., the braking system), ensuring the normal operation and safety of the vehicle.
[0048] The crankcase air intake pipe connector 24 and the air compressor intake pipe connector 25 are located in the third pipe section 14. This allows for a reasonable positioning of the crankcase air intake pipe connector 24 and the air compressor intake pipe connector 25, facilitating the connection of the crankcase air intake pipe connector 24 to the crankcase via the crankcase air intake pipe 10, and facilitating the connection of the air compressor intake pipe connector 25 to the air compressor via the air compressor intake pipe. This reduces the risk of interference between the crankcase air intake pipe 10, the air compressor intake pipe and other vehicle components during the connection process, thereby improving the assembly efficiency of the engine intake system 200 and reducing the assembly difficulty of the engine intake system 200.
[0049] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, along the gas flow direction in the gas flow channel 11, the air compressor intake pipe joint 25 is located upstream of the crankcase make-up air pipe joint 24.
[0050] In this configuration, along the gas flow direction within the gas flow channel 11, the air compressor intake pipe connector 25 is located upstream of the crankcase air supply pipe connector 24. In other words, along the gas flow direction within the gas flow channel 11, the air compressor intake pipe connector 25 and the crankcase air supply pipe connector 24 are arranged sequentially. This arrangement ensures a reasonable arrangement of the air compressor intake pipe connector 25 and the crankcase air supply pipe connector 24, reducing the risk of fuel vapor or other impurities in the crankcase air supply pipe 10 entering the air compressor intake pipe. This promotes relatively pure air intake from the air compressor, thereby reducing the risk of wear and corrosion of internal parts by oil and impurities, and extending the service life of the air compressor.
[0051] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, multiple pipe joints 2 are integrally formed with the intake pipe body 1; and / or the outer surface of the intake pipe body 1 is formed with reinforcing ribs 15, which are connected to at least one pipe joint 2.
[0052] In some embodiments of this application, multiple pipe connectors 2 are integrally formed with the intake pipe body 1. In some embodiments of this application, reinforcing ribs 15 are formed on the outer surface of the intake pipe body 1, and the reinforcing ribs 15 are connected to at least one pipe connector 2. In some embodiments of this application, multiple pipe connectors 2 are integrally formed with the intake pipe body 1, and reinforcing ribs 15 are formed on the outer surface of the intake pipe body 1, and the reinforcing ribs 15 are connected to at least one pipe connector 2.
[0053] In some embodiments of this utility model, multiple pipe joints 2 are integrally formed with the intake pipe body 1. That is, multiple pipe joints 2 are integrally formed with the intake pipe body 1. The integrally formed part has good structural strength. By making multiple pipe joints 2 integrally formed with the intake pipe body 1, the connection reliability between multiple pipe joints 2 and the intake pipe body 1 can be improved, and the probability of breakage at the connection between multiple pipe joints 2 and the intake pipe body 1 can be reduced, thereby improving the structural stability of the engine intake pipe 100. Furthermore, the intake pipe body 1 is formed with reinforcing ribs 15. The reinforcing ribs 15 are formed on the outer surface of the intake pipe body 1 and are connected to at least one pipe joint 2. For example, the reinforcing ribs 15 are connected to one pipe joint 2, two pipe joints 2, or all five pipe joints 2.
[0054] This application uses the example of reinforcing rib 15 being connected to all five pipe joints 2. This arrangement strengthens the structural strength of the intake pipe body 1 and the connection between the intake pipe body 1 and the pipe joints 2, reducing the risk of cracking in both the intake pipe body 1 and the connection between the intake pipe body 1 and the pipe joints 2. This further improves the structural stability of the engine intake pipe 100. Furthermore, the reinforcing rib 15 supports the pipe joints 2, enhancing their structural stability and strength. This facilitates reliable connection between multiple pipe joints 2 and their corresponding pipes, thereby improving the operational stability of the engine intake system 200. By placing the reinforcing rib 15 on the outer surface of the intake pipe body 1, the risk of eddy currents or turbulence in the airflow channel 11 caused by placing the reinforcing rib 15 on the inner surface of the intake pipe body 1 is reduced, allowing air to smoothly enter the engine.
[0055] like Figure 1 As shown, the engine intake system 200 according to an embodiment of the present invention includes the engine intake pipe 100 of the above embodiment. The main function of the engine intake system 200 is to provide a certain amount of clean air to the engine. After the clean air mixes with the fuel, it can enable the engine to operate normally and achieve optimal performance. The engine intake system 200 may also include an intake duct 3, an air filter inlet pipe 4, an air filter 5, an air filter outlet pipe 6, an intake rigid pipe 7, a pressure relief valve vent pipe 8, a crankcase ventilation pipe 9, and a crankcase air supply pipe 10. The pressure relief valve vent pipe 8 is connected to the pressure relief valve vent pipe connector 22 to achieve the effect of balancing the intake pressure after turbocharging. The crankcase ventilation pipe 9 and the crankcase air supply pipe 10 are respectively connected to the crankcase ventilation pipe connector 21 and the crankcase air supply pipe connector 24, thereby achieving the effects of crankcase ventilation and crankcase air supply.
[0056] Along the gas flow direction within the gas flow channel 11, the engine intake pipe 100, intake hard pipe 7, air filter rear intake pipe 6, air filter 5, air filter front intake pipe 4, and intake duct 3 are arranged in sequence. Adjacent pipes can be connected by means of, but not limited to, snap-fit or adhesive bonding, so that air can smoothly enter the engine intake system 200, be filtered by the air filter 5, and then enter the engine, reducing the risk of unfiltered air entering the passenger compartment or engine, which could lead to a deterioration of the interior environment or engine damage.
[0057] The vehicle according to this utility model embodiment includes the engine intake system 200 of the above embodiment. By allocating multiple pipe joints 2 to the intake pipe body 1, and the multiple pipe joints 2 including at least two of the following: crankcase ventilation pipe joint 21, pressure relief valve vent pipe joint 22, fuel desorption pipe joint 23, crankcase air supply pipe joint 24, and air compressor intake pipe joint 25, the engine intake pipe 100 can realize multiple functions, which is beneficial to simplifying the structural layout of the engine intake system 200, thereby making the pipe design of the engine intake system 200 compact and beautiful, and also reducing the length of the pipes in the engine intake system 200, which is beneficial to the space layout of the vehicle.
[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. An engine intake manifold, characterized in that, include: The intake pipe body defines a gas flow channel; Multiple pipe joints are provided on the intake pipe body and are connected to the gas flow channel. The multiple pipe joints include at least two of the following: crankcase ventilation pipe joint, pressure relief valve vent pipe joint, fuel desorption pipe joint, crankcase air supply pipe joint, and air compressor intake pipe joint.
2. The engine intake pipe according to claim 1, characterized in that, The main body of the intake pipe includes: a first pipe section, a second pipe section and a third pipe section, wherein the second pipe section is connected between the first pipe section and the third pipe section, and the second pipe section is arc-shaped.
3. The engine intake manifold according to claim 2, characterized in that, One of the plurality of pipe joints is the crankcase ventilation pipe joint. Along the gas flow direction in the gas flow channel, the first pipe section is located upstream of the second pipe section, and the crankcase ventilation pipe joint is located in the first pipe section.
4. The engine intake manifold according to claim 2, characterized in that, Two of the plurality of pipe joints are the pressure relief valve vent pipe joint and the fuel desorption pipe joint, which are located in the second pipe section.
5. The engine intake manifold according to claim 4, characterized in that, Along the gas flow direction within the gas channel, the fuel desorption pipe joint is located upstream of the pressure relief valve vent pipe joint.
6. The engine intake manifold according to claim 2, characterized in that, Two of the plurality of pipe joints are the crankcase air supply pipe joint and the air compressor air intake pipe joint, which are located in the third pipe section.
7. The engine intake manifold according to claim 6, characterized in that, Along the gas flow direction within the gas channel, the air compressor intake pipe joint is located upstream of the crankcase air supply pipe joint.
8. The engine intake manifold according to any one of claims 1-7, characterized in that, Multiple of the aforementioned pipe fittings are integrally formed with the main body of the intake pipe; and / or The outer surface of the intake pipe body is provided with reinforcing ribs, which are connected to at least one of the pipe joints.
9. An engine intake system, characterized in that, Includes the engine intake manifold according to any one of claims 1-8.
10. A vehicle, characterized in that, Includes the engine intake system according to claim 9.