Exhaust gas recirculation intercooling pipeline structure and system, range extender and vehicle

Abstract

The utility model provides an exhaust gas recirculation intercooling pipeline structure, a system, a range extender and a vehicle, the exhaust gas recirculation intercooling pipeline structure is arranged between an exhaust gas turbine and an intake manifold, and comprises a main pipeline, an exhaust gas recirculation intercooling pipeline, an exhaust gas recirculation intercooling pipeline, an exhaust gas recirculation intercooling pipeline and an exhaust gas recirculation intercooling pipeline, the two ends of the bypass pipeline are communicated with the main pipeline; in the height direction, the central axis of the main pipeline is higher than that of the bypass pipeline; gas output by the exhaust gas turbine enters the intake manifold through the main pipeline and the bypass pipeline. By the adoption of the design of the double-communication pipelines, gas can pass through the main pipeline and the bypass channel, the performance requirement of the range extender can be met, the influence on the performance of the range extender is avoided, meanwhile, due to the fact that the bypass pipeline is lower than the main pipeline, gas containing water vapor can pass through the bypass pipeline and settle in the bypass pipeline, and therefore the range extender is protected. Therefore, water vapor in the gas can be collected through the bypass pipeline, a large amount of water vapor is prevented from being brought into the air cylinder by the gas, and the fire phenomenon of the range extender is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of range extender exhaust gas circulation, in particular to an exhaust gas recirculation intercooling pipeline structure, an exhaust gas recirculation system, a range extender and a vehicle. Background Art

[0002] At present, due to the application of low-pressure EGR (Exhaust Gas Recirculation) solutions in vehicles, the exhaust gas will return to the intercooler pipe through the low-pressure EGR. Since there is water vapor in the fuel exhaust gas, when the range extender stops running, the water vapor in the exhaust gas of the intercooler pipe will condense into water, causing water accumulation in the intercooler pipe. Usually, the intercooler pipe is arranged in a lower area in the transverse plane of the vehicle, and the condensed water will be deposited at the bottom of the intercooler pipe. In view of the particularity of the operating conditions of the range extender, the vehicle may be mostly in a pure electric operation state or the range extender is in a low-load operation state. The accumulated water cannot be completely removed, resulting in continuous accumulation of accumulated water. When the range extender suddenly enters a high-load condition, a large amount of accumulated water will enter the cylinder of the range extender through the intake duct in a short time. Due to the large amount of water vapor entering, the range extender will misfire. Utility Model Content

[0003] In view of the above problems, the present invention is proposed to provide an exhaust gas recirculation intercooler pipe structure, an exhaust gas recirculation system, a range extender and a vehicle that overcome the above problems or at least partially solve the above problems.

[0004] In order to solve the above problems, in a first aspect of the utility model, the utility model discloses an exhaust gas recirculation intercooler pipeline structure, wherein the exhaust gas recirculation intercooler pipeline structure is located between the exhaust gas turbine and the intake manifold, and the exhaust gas recirculation intercooler pipeline structure comprises:

[0005] A main pipeline, located between the exhaust turbine and the intake manifold;

[0006] A bypass pipeline, both ends of which are connected to the main pipeline;

[0007] In the height direction, the central axis of the main pipeline is higher than the central axis of the bypass pipeline; the gas output by the exhaust gas turbine enters the intake manifold through the bypass pipeline and the main pipeline.

[0008] Optionally, the air inlet of the bypass pipeline is connected to the air inlet end of the main pipeline, and the air outlet of the bypass pipeline is connected to the air outlet end of the main pipeline, and the diameters of the air inlet and the air outlet are smaller than the diameter of the main pipeline.

[0009] Optionally, the diameter of the air inlet is larger than the diameter of the air outlet.

[0010] Optionally, in the height direction, the bottom surface of the main pipeline is higher than the top surface of the bypass pipeline.

[0011] Optionally, the main pipeline and the bypass pipeline are an integrated structure.

[0012] Optionally, the main pipeline and the bypass pipeline are split structures.

[0013] Optionally, the exhaust gas recirculation intercooler pipeline structure further includes:

[0014] A high-pressure seal is located at the connection between the main pipeline and the bypass pipeline and is used for sealing the main pipeline and the bypass pipeline.

[0015] In a second aspect of the utility model, the utility model discloses an exhaust gas recirculation system, comprising: an exhaust gas recirculation valve, an exhaust gas turbine and the exhaust gas recirculation intercooler pipeline structure as described above.

[0016] In a third aspect of the present utility model, the present utility model discloses a range extender, comprising: the exhaust gas recirculation system as described above.

[0017] In a fourth aspect of the utility model, the utility model discloses a vehicle, comprising: the range extender as described above.

[0018] The utility model has the following advantages:

[0019] The embodiment of the utility model is located between the exhaust gas turbine and the intake manifold through the main pipeline; the bypass pipeline, both ends of the bypass pipeline are connected to the main pipeline; in the height direction, the central axis of the main pipeline is higher than the central axis of the bypass pipeline; the gas output by the exhaust gas turbine enters the intake manifold through the main pipeline and the bypass pipeline. By adopting the design of dual-connected pipelines, both the main pipeline and the bypass passage can pass the gas, which can meet the performance requirements of the range extender and avoid affecting the performance of the range extender. At the same time, since the bypass pipeline is lower than the main pipeline, the gas containing water vapor will pass through the bypass pipeline and settle in the bypass pipeline, so that the water vapor in the gas can be collected through the bypass pipeline, avoiding a large amount of water vapor being brought into the cylinder by the gas, and avoiding the occurrence of range extender misfires. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an exhaust gas recirculation intercooler pipeline structure of the utility model;

[0021] Figure 2 It is a first-view schematic diagram of another exhaust gas recirculation intercooler pipeline structure of the utility model;

[0022] Figure 3 This is a second perspective schematic diagram of another exhaust gas recirculation intercooler pipeline structure of the present invention.

[0023] Description of reference numerals: 100 - main line, 110 - air inlet end, 120 - air outlet end, 200 - bypass line, 210 - air inlet portion, 220 - air outlet portion. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] In the present utility model, unless otherwise clearly specified and limited, the terms "fixed", "set", "installed", and "connected" can mean that one element is directly on another element or there may be an element in the middle. "Fixed" can be understood as "fixed connection", and "set", "installed", and "connected" can all be understood as a type of connection. At the same time, the connection can include a mechanical connection or a structural connection, and can also be understood as an electrical connection, a thermal connection, or a communication connection. For mechanical or structural connections, the connection includes a detachable connection and a non-detachable connection. For example, a fixed connection may include a detachable fixed connection, a non-detachable fixed connection, or an integrally formed one. A rotating connection may include a detachable rotating connection and a non-detachable rotating connection. A sliding connection may include a detachable sliding connection and a non-detachable sliding connection. The connection can also be a direct connection or an indirect connection through a component. For example, for a detachable fixed connection, it means that in the installed state, the positional relationship between at least two connected objects can be fixed; similar examples include a rotating connection, a sliding connection, and the like.

[0026] Reference Figure 1 , shows a schematic diagram of an exhaust gas recirculation intercooler pipeline structure of the utility model, the exhaust gas recirculation intercooler pipeline structure is located between the exhaust gas turbine and the intake manifold, and the exhaust gas recirculation intercooler pipeline structure may specifically include the following components:

[0027] The main pipeline 100 is located between the exhaust turbine and the intake manifold;

[0028] A bypass pipeline 200, both ends of which are connected to the main pipeline 100;

[0029] In the height direction, the central axis of the main pipeline 100 is higher than the central axis of the bypass pipeline 200 ; the gas output by the exhaust gas turbine enters the intake manifold through the bypass pipeline 200 and the main pipeline 100 .

[0030] In the embodiment of the utility model, the exhaust gas recirculation intercooling pipeline structure may include a dual-connected pipeline: a main pipeline 100 and a bypass pipeline 200. The main pipeline 100 is the main passage of the exhaust gas, located between the exhaust turbine and the intake manifold, that is, the gas output by the exhaust turbine can enter the manifold through the main pipeline 100. Both ends of the bypass pipeline 200 are connected to the main pipeline 100, that is, both ends of the bypass pipeline 200 are also connected to the gas path of the main pipeline 100, and the gas output by the exhaust turbine can also enter the manifold through the bypass pipeline 200. In the height direction, the central axis of the main pipeline 100 is higher than the central axis of the bypass pipeline 200, that is, when the same gas enters the common entrance of the main pipeline 100 and the bypass pipeline 200, the exhaust gas containing more water vapor will enter the bypass pipeline 200 due to gravity, and the exhaust gas containing less water vapor will enter the main pipeline 100. Since the other end of the bypass pipe 200 is also connected to the main pipe, the bypass pipe 200 has a longer gas path. Exhaust gas containing more water vapor is deposited in the bypass pipe 200 to precipitate water. The bypass pipe 200 can collect the water and prevent it from entering the intake manifold.

[0031] Furthermore, the bypass line 200 may be a U-shaped line, so that more water vapor in the exhaust gas can be deposited in the bypass line 200, thereby further reducing the water vapor entering the intake pipe.

[0032] In an optional embodiment of the present invention, the main pipeline 100 and the bypass pipeline 200 are split structures.

[0033] In practical applications, the main pipeline 100 and the bypass pipeline 200 may be of a split structure, and the main pipeline 100 and the bypass pipeline 200 are detachably connected. When there is a lot of water in the bypass pipeline 200, or the bypass pipeline 200 is blocked, the bypass pipeline 200 can be removed from the main pipeline 100 to perform corresponding troubleshooting to improve practicality.

[0034] In an optional embodiment of the present invention, the exhaust gas recirculation intercooler pipeline structure also includes: a high-pressure seal (not shown in the figure), located at the connection between the main pipeline 100 and the bypass pipeline 200, for sealing the main pipeline 100 and the bypass pipeline 200.

[0035] When the main line 100 and the bypass line 200 are of a split structure, since the intercooler is a high-pressure component, in order to ensure the operation of the intercooler, at least one high-pressure seal may be provided at the connection between the main line 100 and the bypass line 200 to seal the main line 100 and the bypass line 200 and prevent gas leakage from the connection between the main line 100 and the bypass line 200.

[0036] The embodiment of the utility model is located between the exhaust gas turbine and the intake manifold through the main pipeline 100; the bypass pipeline 200, both ends of the bypass pipeline 200 are connected to the main pipeline 100; in the height direction, the central axis of the main pipeline 100 is higher than the central axis of the bypass pipeline 200; the gas output by the exhaust gas turbine enters the intake manifold through the main pipeline 100 and the bypass pipeline 200. By adopting the design of double-connected pipelines, both the main pipeline 100 and the bypass passage can pass the gas, which can meet the performance requirements of the range extender and avoid affecting the performance of the range extender. At the same time, since the bypass pipeline 200 is lower than the main pipeline 100, the gas containing water vapor will pass through the bypass pipeline 200 and settle in the bypass pipeline 200, so that the water vapor in the gas can be collected through the bypass pipeline 200, avoiding a large amount of water vapor being brought into the cylinder by the gas, and avoiding the occurrence of range extender misfire.

[0037] Reference Figure 2 , showing a first perspective schematic diagram of another exhaust gas recirculation intercooler pipeline structure of the utility model; referring to Figure 3 , showing a second perspective schematic diagram of another exhaust gas recirculation intercooler pipeline structure of the utility model. The exhaust gas recirculation intercooler pipeline structure is located between the exhaust gas turbine and the intake manifold, and the exhaust gas recirculation intercooler pipeline structure includes:

[0038] The main pipeline 100 is located between the exhaust turbine and the intake manifold;

[0039] A bypass pipeline 200, both ends of which are connected to the main pipeline 100;

[0040] In the height direction, the bottom surface of the main pipeline 100 is higher than the top surface of the bypass pipeline 200 ; the gas output by the exhaust gas turbine enters the intake manifold through the bypass pipeline 200 and the main pipeline 100 .

[0041] In the embodiment of the utility model, the exhaust gas recirculation intercooling pipeline structure may include a main pipeline 100 and a bypass pipeline 200, which are located between the exhaust gas turbine and the intake manifold. The gas output by the exhaust gas turbine can enter the intake manifold through the main pipeline 100. Both ends of the bypass pipeline 200 are connected to the main pipeline 100, and the gas output by the exhaust gas turbine can also enter the intake manifold through the bypass pipeline 200. In the height direction, the bottom surface of the main pipeline 100 is higher than the top surface of the bypass pipeline 200, that is, Figure 2 As shown, the bypass line 200 can be located directly below the main line 100, and the exhaust gas containing more water vapor can enter the bypass line 200 more, and be deposited and precipitated in the bypass line 200. The bypass line 200 can collect the moisture and prevent the moisture from entering the intake manifold.

[0042] In an optional embodiment of the present invention, the main pipeline 100 and the bypass pipeline 200 are an integrated structure.

[0043] like Figure 3 As shown, the main pipeline 100 and the bypass pipeline 200 are an integrated structure, and the main pipeline 100 and the bypass pipeline 200 are formed by an integral molding method. The main pipeline 100 and the bypass pipeline 200 are connected seamlessly, which can avoid gas leakage from the connection between the main pipeline 100 and the bypass pipeline 200, thereby avoiding malfunction of the range extender due to gas leakage, thereby ensuring the reliability of the range extender.

[0044] In an optional embodiment of the present invention, the air inlet 210 of the bypass line 200 is connected to the air inlet end 110 of the main line 100, and the air outlet 220 of the bypass line 200 is connected to the air outlet end 120 of the main line 100, and the pipe diameters of the air inlet 210 and the air outlet 220 are smaller than the pipe diameter of the main line 100.

[0045] The air inlet 210 of the bypass pipeline 200 is connected to the air inlet end 110 of the main pipeline 100. After the exhaust gas enters, it can enter the bypass pipeline 200 and the main pipeline 100. The air outlet 220 of the bypass pipeline 200 is connected to the air outlet end 120 of the main pipeline 100. Both the bypass pipeline 200 and the main pipeline 100 can output the exhaust gas to the intake manifold. The diameters of the air inlet 210 and the air outlet 220 are smaller than the diameter of the main pipeline 100, that is, the diameters of both ends of the bypass pipeline 200 connected to the main pipeline 100 are smaller than the diameter of the main pipeline 100, so that the setting of the bypass pipeline 200 will not affect the gas flow of the main pipeline 100, and will not affect the gas flow of the main pipeline 100, that is, it will not affect the normal operation of the range extender.

[0046] Furthermore, the diameter of the air inlet 210 is greater than the diameter of the air outlet 220 .

[0047] In practical applications, the diameter of the air inlet 210 can be larger than the diameter of the air outlet 220. The larger air inlet 210 allows more exhaust gas to enter the bypass air path, so that as much moisture as possible can be collected in the exhaust gas. At the same time, the smaller air outlet 220 can limit the moisture taken away by the dry exhaust gas from the bypass air path, thereby limiting the accumulated water taken out by the exhaust gas and entering the intake manifold, further preventing a large amount of accumulated water from being brought in, and more effectively preventing the range extender from misfiring.

[0048] The embodiment of the utility model is located between the exhaust gas turbine and the intake manifold through the main pipeline 100; the bypass pipeline 200, both ends of the bypass pipeline 200 are connected to the main pipeline 100; in the height direction, the bottom surface of the main pipeline 100 is higher than the top surface of the bypass pipeline 200; the gas output by the exhaust gas turbine enters the intake manifold through the main pipeline 100 and the bypass pipeline 200. By adopting the design of dual-connected pipelines, both the main pipeline 100 and the bypass pipeline can pass gas, which can meet the performance requirements of the range extender and avoid affecting the performance of the range extender. At the same time, since the bypass pipeline 200 is located below the main pipeline 100, the gas containing water vapor will pass through the bypass pipeline 200 and settle in the bypass pipeline 200, so that the water vapor in the gas can be collected by the bypass pipeline 200, avoiding a large amount of water vapor from being brought into the cylinder by the gas, and the bypass pipeline 200 has a smaller diameter entering the main pipeline 100, so the size of the pipeline can limit the inhalation of accumulated water, effectively avoiding the occurrence of fire in the range extender.

[0049] The embodiment of the utility model further discloses an exhaust gas recirculation system, which includes an exhaust gas recirculation valve, an exhaust gas turbine and the exhaust gas recirculation intercooler pipeline structure as described above.

[0050] The exhaust gas recirculation system is based on the working cycle (four-stroke) of the range extender and the characteristics of the exhaust gas composition. During the operation of the range extender, a part of the exhaust gas is opened through the exhaust gas recirculation valve, driving the exhaust gas turbine, and introducing the exhaust gas into the exhaust gas recirculation intercooling pipeline structure for cooling, and then re-entering the intake manifold through the EGR pipeline. In this way, a part of the exhaust gas is mixed with fresh air and enters the cylinder to participate in the next combustion process. The operation of the EGR system is precisely controlled by the range extender control unit (ECU). The ECU controls the amount of recirculated exhaust gas by adjusting the opening of the EGR valve according to the speed, load, temperature and other parameters of the range extender. When the range extender is running at low load or high speed, the EGR valve is closed or opened to a small degree, reducing the amount of exhaust gas recirculation; when the range extender is running at high load or low speed, the EGR valve opening increases, increasing the amount of exhaust gas recirculation to achieve the best emission control effect.

[0051] Specifically, the exhaust gas recirculation intercooler pipeline structure is located between the exhaust gas turbine and the intake manifold, and the exhaust gas recirculation intercooler pipeline structure includes:

[0052] The main pipeline 100 is located between the exhaust turbine and the intake manifold;

[0053] A bypass pipeline 200, both ends of which are connected to the main pipeline 100;

[0054] In the height direction, the central axis of the main pipeline 100 is higher than the central axis of the bypass pipeline 200 ; the gas output by the exhaust gas turbine enters the intake manifold through the bypass pipeline 200 and the main pipeline 100 .

[0055] Optionally, the air inlet 210 of the bypass pipeline 200 is connected to the air inlet end 110 of the main pipeline 100, and the air outlet 220 of the bypass pipeline 200 is connected to the air outlet end 120 of the main pipeline 100, and the diameters of the air inlet 210 and the air outlet 220 are smaller than the diameter of the main pipeline 100.

[0056] Optionally, the diameter of the air inlet 210 is greater than the diameter of the air outlet 220 .

[0057] Optionally, in the height direction, the bottom surface of the main pipeline 100 is higher than the top surface of the bypass pipeline 200 .

[0058] Optionally, the main pipeline 100 and the bypass pipeline 200 are an integrated structure.

[0059] Optionally, the main pipeline 100 and the bypass pipeline 200 are split structures.

[0060] Optionally, the exhaust gas recirculation intercooler pipeline structure further includes:

[0061] The high-pressure seal is located at the connection between the main pipeline 100 and the bypass pipeline 200 , and is used to seal the main pipeline 100 and the bypass pipeline 200 .

[0062] The embodiment of the utility model is located between the exhaust gas turbine and the intake manifold through the main pipeline 100; the bypass pipeline 200, both ends of the bypass pipeline 200 are connected to the main pipeline 100; in the height direction, the central axis of the main pipeline 100 is higher than the central axis of the bypass pipeline 200; the gas output by the exhaust gas turbine enters the intake manifold through the main pipeline 100 and the bypass pipeline 200. By adopting the design of double-connected pipelines, both the main pipeline 100 and the bypass passage can pass the gas, which can meet the performance requirements of the range extender and avoid affecting the performance of the range extender. At the same time, since the bypass pipeline 200 is lower than the main pipeline 100, the gas containing water vapor will pass through the bypass pipeline 200 and settle in the bypass pipeline 200, so that the water vapor in the gas can be collected through the bypass pipeline 200, avoiding a large amount of water vapor being brought into the cylinder by the gas, and avoiding the occurrence of range extender misfire.

[0063] The embodiment of the utility model further discloses a range extender, which includes the exhaust gas recirculation system as described above.

[0064] By reintroducing a portion of the exhaust gas into the intake duct of the range extender through the exhaust gas recirculation system, effective control of the range extender's emissions is achieved, and it also brings many positive effects to the operation of the range extender. First, the operation of the EGR system significantly reduces the nitrogen oxide (NOx) emissions of the range extender. By reintroducing part of the exhaust gas into the combustion chamber, the EGR system effectively reduces the combustion temperature, which is a key factor in reducing NOx generation. Secondly, the operation of the EGR system helps to optimize the combustion process of the range extender. Although the introduction of exhaust gas may slightly reduce the combustion speed, this change helps to reduce the tendency of knock during the combustion process. Knocking is an abnormal combustion phenomenon that can damage the range extender and reduce its efficiency. Through the regulation of the EGR system, the range extender can achieve smooth and efficient operation over a wider range of operating conditions. In addition, the EGR system also helps to improve the fuel economy of the range extender. Under partial load conditions, proper exhaust gas recirculation can reduce the combustion temperature and reduce heat loss, thereby improving the thermal efficiency of the range extender. This means that the range extender can produce more power while consuming the same amount of fuel, thereby improving the utilization of fuel.

[0065] Specifically, the exhaust gas recirculation intercooler pipeline structure is located between the exhaust gas turbine and the intake manifold, and the exhaust gas recirculation intercooler pipeline structure includes:

[0066] The main pipeline 100 is located between the exhaust turbine and the intake manifold;

[0067] A bypass pipeline 200, both ends of which are connected to the main pipeline 100;

[0068] In the height direction, the central axis of the main pipeline 100 is higher than the central axis of the bypass pipeline 200 ; the gas output by the exhaust gas turbine enters the intake manifold through the bypass pipeline 200 and the main pipeline 100 .

[0069] Optionally, the air inlet 210 of the bypass pipeline 200 is connected to the air inlet end 110 of the main pipeline 100, and the air outlet 220 of the bypass pipeline 200 is connected to the air outlet end 120 of the main pipeline 100, and the diameters of the air inlet 210 and the air outlet 220 are smaller than the diameter of the main pipeline 100.

[0070] Optionally, the diameter of the air inlet 210 is greater than the diameter of the air outlet 220 .

[0071] Optionally, in the height direction, the bottom surface of the main pipeline 100 is higher than the top surface of the bypass pipeline 200 .

[0072] Optionally, the main pipeline 100 and the bypass pipeline 200 are an integrated structure.

[0073] Optionally, the main pipeline 100 and the bypass pipeline 200 are split structures.

[0074] Optionally, the exhaust gas recirculation intercooler pipeline structure further includes:

[0075] The high-pressure seal is located at the connection between the main pipeline 100 and the bypass pipeline 200 , and is used to seal the main pipeline 100 and the bypass pipeline 200 .

[0076] The embodiment of the utility model is located between the exhaust gas turbine and the intake manifold through the main pipeline 100; the bypass pipeline 200, both ends of the bypass pipeline 200 are connected to the main pipeline 100; in the height direction, the central axis of the main pipeline 100 is higher than the central axis of the bypass pipeline 200; the gas output by the exhaust gas turbine enters the intake manifold through the main pipeline 100 and the bypass pipeline 200. By adopting the design of double-connected pipelines, both the main pipeline 100 and the bypass passage can pass the gas, which can meet the performance requirements of the range extender and avoid affecting the performance of the range extender. At the same time, since the bypass pipeline 200 is lower than the main pipeline 100, the gas containing water vapor will pass through the bypass pipeline 200 and settle in the bypass pipeline 200, so that the water vapor in the gas can be collected through the bypass pipeline 200, avoiding a large amount of water vapor being brought into the cylinder by the gas, and avoiding the occurrence of range extender misfire.

[0077] An embodiment of the utility model further discloses a vehicle, comprising the range extender as described above.

[0078] The range extender provides additional electrical energy to new energy vehicles, thereby increasing the vehicle's driving range. First, the range extender converts chemical energy into electrical energy through its working principle to power the motor. This conversion process makes the range extender an important part of the power system of new energy vehicles. It can start when the battery is low and charge the battery to ensure that the vehicle can continue to drive. Secondly, the application of the range extender has significantly improved the performance of new energy vehicles. Since the range extender can provide stable electrical energy to the motor, new energy vehicles can perform better in scenarios that require high power output, such as acceleration and climbing. At the same time, the range extender can also intelligently adjust the power output according to the vehicle's driving status and the driver's needs, achieving more efficient and energy-saving driving. In addition, the range extender also helps to increase the driving range of new energy vehicles. Before the battery is exhausted, the range extender can start and charge the battery, thereby extending the vehicle's driving distance. This is of great significance for new energy vehicles that need to travel long distances or are used in areas without charging facilities.

[0079] Specifically, the exhaust gas recirculation intercooler pipeline structure is located between the exhaust gas turbine and the intake manifold, and the exhaust gas recirculation intercooler pipeline structure includes:

[0080] The main pipeline 100 is located between the exhaust turbine and the intake manifold;

[0081] A bypass pipeline 200, both ends of which are connected to the main pipeline 100;

[0082] In the height direction, the central axis of the main pipeline 100 is higher than the central axis of the bypass pipeline 200 ; the gas output by the exhaust gas turbine enters the intake manifold through the bypass pipeline 200 and the main pipeline 100 .

[0083] Optionally, the air inlet 210 of the bypass pipeline 200 is connected to the air inlet end 110 of the main pipeline 100, and the air outlet 220 of the bypass pipeline 200 is connected to the air outlet end 120 of the main pipeline 100, and the diameters of the air inlet 210 and the air outlet 220 are smaller than the diameter of the main pipeline 100.

[0084] Optionally, the diameter of the air inlet 210 is greater than the diameter of the air outlet 220 .

[0085] Optionally, in the height direction, the bottom surface of the main pipeline 100 is higher than the top surface of the bypass pipeline 200 .

[0086] Optionally, the main pipeline 100 and the bypass pipeline 200 are an integrated structure.

[0087] Optionally, the main pipeline 100 and the bypass pipeline 200 are split structures.

[0088] Optionally, the exhaust gas recirculation intercooler pipeline structure further includes:

[0089] The high-pressure seal is located at the connection between the main pipeline 100 and the bypass pipeline 200 , and is used to seal the main pipeline 100 and the bypass pipeline 200 .

[0090] The embodiment of the utility model is located between the exhaust gas turbine and the intake manifold through the main pipeline 100; the bypass pipeline 200, both ends of the bypass pipeline 200 are connected to the main pipeline 100; in the height direction, the central axis of the main pipeline 100 is higher than the central axis of the bypass pipeline 200; the gas output by the exhaust gas turbine enters the intake manifold through the main pipeline 100 and the bypass pipeline 200. By adopting the design of double-connected pipelines, both the main pipeline 100 and the bypass passage can pass the gas, which can meet the performance requirements of the range extender and avoid affecting the performance of the range extender. At the same time, since the bypass pipeline 200 is lower than the main pipeline 100, the gas containing water vapor will pass through the bypass pipeline 200 and settle in the bypass pipeline 200, so that the water vapor in the gas can be collected through the bypass pipeline 200, avoiding a large amount of water vapor being brought into the cylinder by the gas, and avoiding the occurrence of range extender misfire.

[0091] Finally, it should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of more restrictions, the elements defined by the sentence "comprise one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "include", "comprise" and "have" and any of their variations are intended to cover non-exclusive inclusion. As used in the utility model, the term "and / or" includes any and all combinations of one or more of the associated listed items, and the phrase "at least one of A and B" refers to only A, only B, or both A and B. It should be understood that in this specification, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "height", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships or dimensions that are based on the orientations or positional relationships or dimensions shown in the accompanying drawings, and these terms are used only for the convenience of description and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present utility model.

[0092] The above is a detailed introduction to an exhaust gas recirculation intercooler pipeline structure, an exhaust gas recirculation system, a range extender and a vehicle provided by the utility model. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model; at the same time, for general technicians in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. An exhaust gas recirculation intercooler pipeline structure, characterized in that: The exhaust gas recirculation intercooler pipeline structure is located between the exhaust gas turbine and the intake manifold, and the exhaust gas recirculation intercooler pipeline structure includes: A main pipeline, located between the exhaust turbine and the intake manifold; A bypass pipeline, both ends of which are connected to the main pipeline; In the height direction, the central axis of the main pipeline is higher than the central axis of the bypass pipeline; the gas output by the exhaust gas turbine enters the intake manifold through the bypass pipeline and the main pipeline.

2. The exhaust gas recirculation intercooler pipeline structure according to claim 1, characterized in that: The air inlet of the bypass pipeline is connected to the air inlet end of the main pipeline, and the air outlet of the bypass pipeline is connected to the air outlet end of the main pipeline. The diameters of the air inlet and the air outlet are smaller than that of the main pipeline.

3. The exhaust gas recirculation intercooler pipeline structure according to claim 2 is characterized in that: The diameter of the air inlet is larger than the diameter of the air outlet.

4. The exhaust gas recirculation intercooler pipeline structure according to claim 1, characterized in that: In the height direction, the bottom surface of the main pipeline is higher than the top surface of the bypass pipeline.

5. The exhaust gas recirculation intercooler pipeline structure according to claim 1, characterized in that: The main pipeline and the bypass pipeline are an integrated structure.

6. The exhaust gas recirculation intercooler pipeline structure according to claim 1, characterized in that: The main pipeline and the bypass pipeline are of split structure.

7. The exhaust gas recirculation intercooler pipeline structure according to claim 6, characterized in that: The exhaust gas recirculation intercooling pipeline structure also includes: A high-pressure seal is located at the connection between the main pipeline and the bypass pipeline and is used for sealing the main pipeline and the bypass pipeline.

8. An exhaust gas recirculation system, characterized in that: include: An exhaust gas recirculation valve, an exhaust gas turbine and an exhaust gas recirculation intercooler pipeline structure as claimed in any one of claims 1 to 7.

9. A range extender, characterized in that: include: The exhaust gas recirculation system as claimed in claim 8.

10. A vehicle, characterized in that: include: The range extender as claimed in claim 9.

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