Pressurizing system and vehicle

Abstract

The utility model discloses a supercharging system and a vehicle. The supercharging system comprises a turbocharger, an actuator and a cooling water assembly. The turbocharger is provided with a bypass branch, and the bypass branch is provided with a valve body with the adjustable opening degree. The actuator comprises a first shell, an air film and an elastic part, a cooling cavity and a containing cavity are defined by the first shell, the containing cavity is communicated with a compressed air outlet of the turbocharger, the air film and the elastic part are both arranged in the containing cavity, one end of the elastic part abuts against the air film, and the other end of the elastic part abuts against the air film. The other end of the elastic piece abuts against the first shell, the air film is in transmission connection with the valve body, and the cooling cavity is arranged outside the containing cavity in a surrounding mode and used for cooling the air film. And an inlet and an outlet of the cooling cavity are respectively communicated with the cooling water assembly to form a circulating pipeline. According to the supercharging system, the probability that the turbocharger breaks down can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of supercharging equipment, in particular to a supercharging system and a vehicle. BACKGROUND

[0002] Exhaust turbocharging is a method of using the energy of diesel engine exhaust gas to drive a turbine to achieve supercharging of an internal combustion engine. The exhaust turbocharger includes a turbine and a compressor. The high-temperature and high-speed exhaust gas of the engine is supplied into the turbine through an exhaust pipe to drive the turbine to rotate, and the turbine drives the compressor impeller coaxial with the turbine to rotate, so that the compressor compresses the air sucked in. In order to avoid the excessive speed of the turbine, a bypass branch is arranged in the turbine in the related technology, and the exhaust gas of the engine can be directly discharged through the bypass branch, so as to reduce the amount of exhaust gas doing work on the turbine and reduce the speed of the turbine.

[0003] In order to be able to adjust the amount of exhaust gas entering the bypass branch, a valve body is arranged in the bypass branch and an actuator connected with the valve body is arranged in the related technology, and the exhaust gas of the compressor is introduced into the actuator, and the actuator adjusts the opening of the valve body according to the pressure of the compressor.

[0004] However, the exhaust temperature of the compressor in the related technology is too high, so that the gas film in the actuator is prone to failure, and further, the exhaust turbocharger is prone to failure. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to at least solve the problem that the gas film in the actuator in the related technology is prone to failure, resulting in failure of the exhaust turbocharger. The purpose is achieved in the following way:

[0006] The first aspect of the present application proposes a supercharging system, comprising: a turbocharger, an actuator and a cooling water assembly. The turbocharger is provided with a bypass branch, and the bypass branch is provided with a valve body with adjustable opening; the actuator comprises a first shell, a gas film and an elastic piece, the first shell defines a cooling cavity and a containing cavity, the containing cavity is in communication with the compressor outlet of the turbocharger, the gas film and the elastic piece are both arranged in the containing cavity, one end of the elastic piece abuts against the gas film, the other end of the elastic piece abuts against the first shell, the gas film is in transmission connection with the valve body, and the cooling cavity is arranged outside the containing cavity and is used for cooling the gas film; the inlet and outlet of the cooling cavity are in communication with the cooling water assembly and constitute a circulating pipeline.

[0007] The supercharging system of the present application introduces cooling water into the cooling cavity through the cooling water assembly, and the cooling water can cool the gas film in the cooling cavity, thereby reducing the probability of failure of the gas film, and further reducing the probability of failure of the turbocharger.

[0008] In some embodiments, the cooling water assembly comprises a water tank and an engine cooling structure, a backwater outlet of the water tank and an inlet of the cooling cavity are both communicated with a water outlet of the engine cooling structure, a water outlet of the water tank and an outlet of the cooling cavity are both communicated with a water inlet of the engine cooling structure.

[0009] In some embodiments, the cooling water assembly further comprises a water pump, the water outlet of the water tank and the outlet of the cooling cavity are both communicated with the water pump, the water inlet of the engine cooling structure is communicated with the water pump, and the water pump is used to pump the cooling water in the water tank and the cooling cavity into the engine cooling structure.

[0010] In some embodiments, the cooling water assembly further comprises a heat dissipation fan, an air outlet of the heat dissipation fan is directed towards the water tank, and the heat dissipation fan is used to dissipate heat from the water tank.

[0011] In some embodiments, the actuator further comprises a connecting rod and a crank, one end of the connecting rod is located in the accommodating cavity and connected with the air film, the other end of the connecting rod is located outside the accommodating cavity and hinged to a first end of the crank, and a second end of the crank is connected with the valve body.

[0012] In some embodiments, the first shell is provided with an air inlet for communicating the accommodating cavity and the turbocharger, the connecting rod, the crank, the valve body and the air film are located on the same side of the air inlet, the air inlet is located on one side of the air film, and the elastic member is located on the other side of the air film.

[0013] In some embodiments, the actuator further comprises a connecting rod, one end of the connecting rod is connected with the second end, and the other end of the connecting rod is connected with the valve body.

[0014] In some embodiments, the turbocharger comprises a turbine and a compressor, the turbine comprises a second shell and a first impeller, the second shell is provided with a main channel and the bypass branch, the first impeller is arranged in the main channel, the compressor comprises a third shell and a second impeller, the third shell is provided with a compression channel, the second impeller is arranged in the compression channel, the first impeller and the second impeller are connected in a synchronous rotation manner, an inlet of the main channel is used to communicate with or disconnect from the engine, the bypass branch is used to communicate with or disconnect from the engine through the valve body, and the compression channel is provided with the compression outlet.

[0015] In some embodiments, the turbocharger further comprises a transmission shaft, the first impeller and the second impeller are oppositely arranged, a part of the transmission shaft is rotatably arranged in the second shell and connected with the first impeller, and the other part of the transmission shaft is rotatably arranged in the third shell and connected with the second impeller.

[0016] A second aspect of the present application provides a vehicle comprising the supercharging system as described in the first aspect above. BRIEF DESCRIPTION OF DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are incorporated in and constitute a part of this specification, illustrate embodiments that, together with the description, serve to explain the principles of the application. In the drawings:

[0018] Figure 1 A schematic diagram of a supercharging system for some embodiments of the present application;

[0019] Figure 2 A schematic diagram of an actuator for some embodiments of the present application.

[0020] The reference signs in the drawings represent the following items:

[0021] 100, a supercharging system;

[0022] 1, a turbocharger; 11, a valve body; 12, a turbine; 121, a second housing; 1211, a main passage; 1212, a bypass branch; 122, a first impeller; 13, a compressor; 131, a third housing; 1311, a compression passage; 132, a second impeller; 14, a transmission shaft;

[0023] 2, an actuator; 21, a first housing; 211, a cooling cavity; 212, a containing cavity; 213, an air inlet hole; 22, an air film; 23, an elastic member; 24, a connecting rod; 25, a crank; 251, a first end; 252, a second end;

[0024] 3, a cooling water assembly; 31, a water tank; 32, an engine cooling structure; 33, a water pump. DETAILED DESCRIPTION

[0025] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0026] Exhaust turbocharging is a method of using the exhaust energy of a diesel engine to drive a turbine to achieve turbocharging of the internal combustion engine. The exhaust turbocharger includes a turbine and a compressor. The high-temperature and high-speed exhaust gas of the engine is supplied to the turbine through an exhaust pipe to drive the turbine to rotate, and the turbine drives the compressor impeller coaxial with the turbine to rotate, so that the compressor compresses the air sucked in. In order to avoid excessive rotation speed of the turbine, a bypass branch is arranged in the turbine in the related art, and the exhaust gas of the engine can be directly discharged through the bypass branch, so as to reduce the amount of exhaust gas doing work on the turbine, thereby reducing the rotation speed of the turbine.

[0027] In order to be able to adjust the amount of exhaust gas entering the bypass branch, a valve body is arranged in the bypass branch in the related art, and an actuator connected with the valve body is arranged, and the exhaust gas of the compressor is introduced into the actuator, and the actuator adjusts the opening degree of the valve body according to the pressure of the compressor.

[0028] However, the exhaust gas temperature of the compressor in the related art is too high, so that the gas film in the actuator is prone to failure, thereby causing the actuator to malfunction.

[0029] In order to at least solve the problem that the gas film in the actuator in the related art is prone to failure, causing the exhaust turbocharger to malfunction. Embodiments of the present application propose a turbocharging system 100, which can cool the gas film 22, thereby reducing the probability of failure of the gas film 22, and thereby reducing the probability of failure of the turbocharger 1.

[0030] Embodiments of the present application also propose a vehicle comprising the turbocharging system 100 as described above.

[0031] The turbocharging system 100 and the vehicle of the embodiments of the present application will be described below with reference to the accompanying drawings.

[0032] In combination with Figure 1 and Figure 2 shown, the turbocharging system 100 of the embodiments of the present application comprises a turbocharger 1, an actuator 2 and a cooling water assembly 3. The turbocharger 1 is provided with a bypass branch 1212, and the bypass branch 1212 is provided with a valve body 11 with adjustable opening degree.

[0033] The actuator 2 comprises a first housing 21, a gas film 22 and an elastic member 23. The first housing 21 defines a cooling cavity 211 and a containing cavity 212. The containing cavity 212 is in communication with the compressor outlet of the turbocharger 1 and is used to introduce the positive pressure gas into the containing cavity 212. The gas film 22 and the elastic member 23 are both arranged in the containing cavity 212. One end of the elastic member 23 abuts against the gas film 22, and the other end of the elastic member 23 abuts against the first housing 21. The gas film 22 is in transmission connection with the valve body 11. The cooling cavity 211 is arranged outside the containing cavity 212 and is used to cool the gas film 22. The inlet and outlet of the cooling cavity 211 are in communication with the cooling water assembly 3 and constitute a circulating pipeline.

[0034] When the elastic force of the elastic element 23 is less than the gas pressure in the receiving cavity 212, the gas film 22 is configured to move away from the air inlet 213 and increase the opening of the valve body 11. When the elastic force of the elastic element 23 is greater than the gas pressure in the receiving cavity 212, the gas film 22 is configured to move closer to the air inlet 213 and decrease the opening of the valve body 11.

[0035] The compressor outlet of the turbocharger 1 is connected and used to introduce positive pressure gas into the housing 212. When the pressure of the turbocharger 1 is too high, the elastic force of the elastic element 23 is less than the gas pressure in the housing 212. The gas film 22 is configured to move away from the intake port 213 and increase the opening of the valve body 11.

[0036] When the pressure of the turbocharger 1 decreases, the elastic force of the elastic element 23 is greater than the gas pressure in the accommodating cavity 212, and the gas film 22 is configured to move toward the intake port 213 and reduce the opening of the valve body 11.

[0037] Cooling water assembly 3 introduces cooling water into cooling chamber 211, allowing the cooling water to enter the cooling chamber 211 and cool the air film 22 inside the cooling chamber 211, thereby reducing the probability of air film 22 failure and thus reducing the probability of turbocharger 1 failure.

[0038] The cooling water assembly 3 is connected to the outlet of the cooling chamber 211 and can receive the cooling water discharged from the cooling chamber 211, so that the cooling water can circulate between the cooling water assembly 3 and the actuator 2, and thus the cooling water can be reused.

[0039] like Figure 1 As shown, in some embodiments, the cooling water assembly 3 includes a water tank 31 and an engine cooling structure 32. The return water inlet of the water tank 31 and the inlet of the cooling chamber 211 are both connected to the outlet of the engine cooling structure 32, and the outlet of the water tank 31 and the outlet of the cooling chamber 211 are both connected to the inlet of the engine cooling structure 32.

[0040] The engine cooling structure 32 is used to cool the engine. The cooling chamber 211 draws water from the engine cooling structure 32 and drains water into the engine cooling structure 32. The engine cooling structure 32 draws water from the water tank and drains water into the water tank and the cooling chamber 211. This avoids the cooling chamber 211 from affecting the engine cooling, and ensures a reasonable circulation path for the cooling water.

[0041] like Figure 1As shown, in some embodiments, the cooling water assembly 3 further comprises a water pump 33, the water outlet of the water tank 31 and the outlet of the cooling cavity 211 are communicated with the water pump 33, the water inlet of the engine cooling structure 32 is communicated with the water pump 33, and the water pump 33 is used to pump the cooling water in the water tank 31 and the cooling cavity 211 into the engine cooling structure 32.

[0042] The pumping action of the water pump 33 can promote the circulation of the cooling water, thereby increasing the cooling effect of the engine cooling structure 32 and the cooling cavity 211.

[0043] In some embodiments, the cooling water assembly 3 further comprises a heat dissipation fan, the air outlet of the heat dissipation fan is directed towards the water tank 31, and the heat dissipation fan is used to dissipate heat from the water tank 31.

[0044] The heat dissipation fan can dissipate heat from the water tank 31 to reduce the temperature of the cooling water, thereby increasing the cooling effect of the cooling water, and further increasing the cooling effect of the engine cooling structure 32 and the cooling cavity 211.

[0045] In combination with Figure 1 and Figure 2 As shown, in some embodiments, the actuator 2 further comprises a connecting rod 24 and a crank 25, one end of the connecting rod 24 is located in the accommodating cavity 212 and connected with the air film 22, the other end of the connecting rod 24 is located outside the accommodating cavity 212 and hinged with the first end 251 of the crank 25, and the second end 252 of the crank 25 is connected with the valve body 11.

[0046] Through the connecting rod 24 and the crank 25, the air film 22 can drive the valve body 11 to move, thereby the air film 22 can be arranged at a relatively far distance from the valve body 11 to diversify the installation position of the actuator 2, thereby reducing the difficulty of setting the actuator 2 in the vehicle.

[0047] Specifically, the bypass branch 1212 is provided with an air hole for air intake, when the air film 22 moves away from the air intake hole 213, the connecting rod 24 moves in the same direction as the air film 22, the first end 251 moves towards the air hole, the second end 252 moves away from the air hole, and the valve body 11 moves away from the air hole; when the air film 22 moves towards the air intake hole 213, the connecting rod 24 moves in the same direction as the air film 22, the first end 251 moves away from the air hole, the second end 252 moves towards the air hole, and the valve body 11 moves towards the air hole.

[0048] In combination with Figure 1 and Figure 2As shown, in some embodiments, the first shell 21 is provided with an air inlet hole 213 for connecting the accommodating cavity 212 and the turbocharger 1. The connecting rod 24, the crank 25, the valve body 11 and the air film 22 are located on the same side of the air inlet hole 213, the air inlet hole 213 is located on one side of the air film 22, and the elastic member 23 is located on the other side of the air film 22.

[0049] The connecting rod 24, the crank 25, the valve body 11 and the air film 22 are located on the same side of the air inlet hole 213, and the air inlet hole 213 is located on one side of the air film 22, and the elastic member 23 is located on the other side of the air film 22, so that when the air film 22 moves away from the air inlet hole 213, the connecting rod 24 moves in the same direction as the air film 22, the first end 251 moves towards the air hole, and the second end 252 moves away from the air hole. And when the air film 22 moves towards the air inlet hole 213, the connecting rod 24 moves in the same direction as the air film 22, the first end 251 moves away from the air hole, and the second end 252 moves towards the air hole,

[0050] In some embodiments, the actuator 2 further comprises a connecting rod, one end of the connecting rod is connected with the second end 252, and the other end of the connecting rod is connected with the valve body 11.

[0051] Through the connecting rod, the second end 252 can remotely drive the valve body 11 to move, so as to reduce the connection difficulty of the second end 252 and the valve body 11.

[0052] In combination Figure 1 And Figure 2 As shown, in some embodiments, the turbocharger 1 comprises a turbine 12 and a compressor 13, the turbine 12 comprises a second shell 121 and a first impeller 122, the second shell 121 is provided with a main passage 1211 and a bypass branch 1212, the first impeller 122 is arranged in the main passage 1211, the compressor 13 comprises a third shell 131 and a second impeller 132, the third shell 131 is provided with a compression passage 1311, the second impeller 132 is arranged in the compression passage 1311, the first impeller 122 and the second impeller 132 are connected in a synchronous rotating manner, the inlet of the main passage 1211 is used for connecting with the engine, the bypass branch 1212 is used for connecting or disconnecting with the engine through the valve body 11, and the compression passage 1311 is provided with a compression outlet.

[0053] The main passage 1211 in the turbine 12 is connected with the engine, the exhaust gas discharged by the engine drives the first impeller 122 to rotate, the first impeller 122 is connected with the second impeller 132, and the first impeller 122 can drive the second impeller 132 to rotate, and the second impeller 132 compresses the gas in the compression passage 1311.

[0054] The compressed air outlet of the compressed air passage 1311 is communicated with the air inlet hole 213, so that the air inlet amount of the bypass branch 1212 can be adjusted by adjusting the valve body 11 through the actuator 2, and then the work amount of the exhaust gas of the engine to the first impeller 122 can be adjusted, so that the compressed air capacity of the second impeller 132 can be adjusted.

[0055] In combination Figure 1 And Figure 2 As shown in FIG. 1, in some embodiments, the turbocharger 1 further comprises a transmission shaft 14, the first impeller 122 and the second impeller 132 are oppositely arranged, a part of the transmission shaft 14 is rotatably arranged in the second shell 121 and connected with the first impeller 122, and another part of the transmission shaft 14 is rotatably arranged in the third shell 131 and connected with the second impeller 132.

[0056] The transmission shaft 14 can realize the connection between the first impeller 122 and the second impeller 132, so that the first impeller 122 can drive the second impeller 132 to rotate.

[0057] The vehicle of the embodiments of the present application comprises the supercharging system 100 of the above embodiments, the cooling water assembly 3 is used to introduce cooling water into the cooling cavity 211, and the air film 22 in the cooling cavity 211 can be cooled through the cooling water, so that the failure probability of the air film 22 is reduced, and then the failure probability of the turbocharger 1 is reduced, so that the vehicle failure rate is reduced, and the stability of the vehicle operation can be improved.

[0058] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0059] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure rotates, then an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0061] In the description of the application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "height direction", "first direction", "second direction", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0062] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0063] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A supercharging system, characterized by, The turbocharger is provided with a bypass branch, and the bypass branch is provided with a valve body with adjustable opening degree. The actuator comprises a first shell, a gas film and an elastic member, the first shell defines a cooling cavity and a containing cavity, the containing cavity is communicated with a compressor outlet of the turbocharger, the gas film and the elastic member are arranged in the containing cavity, one end of the elastic member abuts against the gas film, the other end of the elastic member abuts against the first shell, the gas film is in transmission connection with the valve body, and the cooling cavity is arranged outside the containing cavity and is used for cooling the gas film. The cooling water assembly is communicated with the inlet and the outlet of the cooling cavity and constitutes a circulation pipeline. The cooling water assembly comprises a water tank and an engine cooling structure, a backwater outlet of the water tank and the inlet of the cooling cavity are communicated with a water outlet of the engine cooling structure, and a water outlet of the water tank and the outlet of the cooling cavity are communicated with a water inlet of the engine cooling structure.

2. The supercharging system according to claim 1, characterized in that, The cooling water assembly further comprises a water pump, the water outlet of the water tank and the outlet of the cooling cavity are communicated with the water pump, the water inlet of the engine cooling structure is communicated with the water pump, and the water pump is used for pumping cooling water in the water tank and the cooling cavity into the engine cooling structure.

3. The supercharging system of claim 2, wherein, The cooling water assembly further comprises a heat dissipation fan, an air outlet of the heat dissipation fan is directed to the water tank, and the heat dissipation fan is used for dissipating heat of the water tank.

4. The supercharging system of claim 3, wherein The actuator further comprises a connecting rod and a crank, one end of the connecting rod is located in the containing cavity and connected with the gas film, the other end of the connecting rod is located outside the containing cavity and hinged to a first end of the crank, and a second end of the crank is connected with the valve body.

5. The supercharging system according to any one of claims 1 to 4, characterized in that The first shell is provided with an air inlet hole for communicating the containing cavity and the turbocharger, the connecting rod, the crank, the valve body and the gas film are located on the same side of the air inlet hole, the air inlet hole is located on one side of the gas film, and the elastic member is located on the other side of the gas film.

6. The supercharging system of claim 5, wherein, The actuator further comprises a connecting rod, one end of the connecting rod is connected with the second end, and the other end of the connecting rod is connected with the valve body.

7. The supercharging system of claim 6, wherein, The turbocharger comprises a turbine and a compressor, the turbine comprises a second shell and a first impeller, the second shell is provided with a main channel and the bypass branch, and the first impeller is arranged in the main channel, the compressor comprises a third shell and a second impeller, the third shell is provided with a compressor channel, and the second impeller is arranged in the compressor channel, the first impeller and the second impeller are connected in a synchronous rotation mode, an inlet of the main channel is used for communicating with an engine, the bypass branch is used for communicating with or disconnecting from the engine through the valve body, and the compressor channel is provided with the compressor outlet.

8. The supercharging system according to any one of claims 1 to 4, characterized by The turbocharger further comprises a transmission shaft, the first impeller and the second impeller are oppositely arranged, a part of the transmission shaft is rotatably arranged in the second shell and connected with the first impeller, and another part of the transmission shaft is rotatably arranged in the third shell and connected with the second impeller.

9. The supercharging system of claim 8, wherein, The turbocharging system comprises the turbocharger.

10. A vehicle characterized by comprising: The turbocharging system comprises the turbocharger.

Images