Turbocharger and vehicle

Abstract

The turbocharger comprises a volute, a pressing shell and a middle shell, the middle shell is connected between the volute and the pressing shell, a turbine is arranged in the volute, a pressing wheel is arranged in the pressing shell, and the turbine and the pressing wheel are connected through a rotor shaft penetrating through the middle shell; the electric control actuator is installed on the pressing shell and located on the outer side of the pressing shell. According to the turbocharger, the overall structural size and the occupied space of the turbocharger can be reduced, and the structural compactness of the turbocharger is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of superchargers, and in particular to a turbocharger and a vehicle having the turbocharger. Background Art

[0002] In modern diesel engine applications, turbochargers are essential for improving engine performance. However, the traditional turbocharger structure design is not compact enough and occupies a large space in the engine compartment, which limits some application scenarios with strict space requirements. There is room for improvement. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a turbocharger, which can reduce the overall structural size and occupied space of the turbocharger and improve the structural compactness of the turbocharger.

[0004] A turbocharger according to an embodiment of the present invention comprises: a volute, a compression housing and an intermediate housing, wherein the intermediate housing is connected between the volute and the compression housing, a turbine is arranged in the volute, a compression wheel is arranged in the compression housing, the turbine and the compression wheel are connected via a rotor shaft passing through the intermediate housing; and an electronically controlled actuator, wherein the electronically controlled actuator is mounted on the compression housing and is located on the outside of the compression housing.

[0005] According to the turbocharger of the embodiment of the present invention, the electronically controlled actuator is installed on the outer side of the compressor shell to reduce the radial space occupied by the electronically controlled actuator on the turbocharger, thereby reducing the overall structural size and occupied space of the turbocharger and improving the structural compactness of the turbocharger.

[0006] According to the turbocharger of some embodiments of the present invention, the compression shell is formed with a first air inlet and a first air outlet, the compression wheel is used to drive the air flow from the first air inlet toward the first air outlet, and the electronically controlled actuator is arranged on the outside of the first air outlet.

[0007] According to the turbocharger of some embodiments of the present invention, the compressor shell is provided with a compressor shell outlet pipe, the compressor shell outlet pipe forms the first outlet port, and the electronically controlled actuator is mounted on the outer peripheral wall of the compressor shell outlet pipe.

[0008] In the turbocharger according to some embodiments of the present invention, the electronically controlled actuator is detachably connected to the compressor housing.

[0009] In the turbocharger according to some embodiments of the present invention, the electronically controlled actuator is connected to the compressor housing via at least one connecting member.

[0010] In the turbocharger according to some embodiments of the present invention, there are a plurality of connecting members, and the plurality of connecting members are distributed around the electronically controlled actuator.

[0011] In the turbocharger according to some embodiments of the present invention, the intermediate housing is provided with a cooling oil passage located outside the rotor shaft, and the intermediate housing is formed with an oil storage cavity communicated with the cooling oil passage.

[0012] In the turbocharger according to some embodiments of the present invention, the oil storage chamber is configured as an annular chamber, and the oil storage chamber is distributed around the rotor shaft.

[0013] According to the turbocharger of some embodiments of the present invention, the volute is formed with a second air inlet and a second air outlet, the volute is located on the air flow path between the second air inlet and the second air outlet, and the air flow at the second air inlet is suitable for driving the turbine to rotate.

[0014] The present invention also provides a vehicle.

[0015] A vehicle according to an embodiment of the present invention comprises the turbocharger described in any one of the above embodiments.

[0016] The advantages of the vehicle and the above-mentioned turbocharger over the prior art are the same and will not be described in detail here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 Schematic diagram of the structure of a turbocharger according to an embodiment of the present invention Figure 1 ;

[0020] Figure 2 Schematic diagram of the structure of a turbocharger according to an embodiment of the present invention Figure 2 ;

[0021] Figure 3 Schematic diagram of the structure of a turbocharger according to an embodiment of the present invention Figure 3 ;

[0022] Figure 4 is a schematic structural diagram of an intermediate housing, a turbine, a pressure wheel and a rotor shaft according to an embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of an intermediate shell according to an embodiment of the present invention.

[0024] Reference numerals:

[0025] Turbocharger 100,

[0026] Volute 1, compressor shell 2, compressor shell air outlet pipe 21, first air outlet 211, intermediate shell 3, cooling oil channel 31, oil storage chamber 32, floating bearing 33, thrust bearing 34, oil filling hole 35, oil outlet hole 36, turbine 3, compressor wheel 4, rotor shaft 5, electronically controlled actuator 6, connecting piece 7, turbine shaft 81, oil slinger 82. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Reference below Figure 1-Figure 5 The turbocharger 100 according to the embodiment of the present invention is described. The turbocharger 100 can reduce the overall structural size and occupied space of the turbocharger 100 , thereby improving the structural compactness of the turbocharger 100 .

[0031] like Figure 1-Figure 5 As shown, a turbocharger 100 according to an embodiment of the present invention includes: a volute 1 , a compressor 2 , an intermediate casing 3 and an electronically controlled actuator 6 .

[0032] like Figure 3 As shown, the intermediate housing 3 is connected between the volute 1 and the compression housing 2. The intermediate housing 3 can be connected to the volute 1 and the compression housing 2 by bolt connection, welding connection or other connection methods. The volute 1 is provided with a turbine 3, that is, the volute 1 is hollow so that the turbine 3 can be installed in the volute 1. The volute 1 is the air intake part of the turbocharger 100, and the exhaust gas can enter the volute 1 to drive the turbine 3 to rotate at a high speed. The compression housing 2 is provided with a pressure wheel 4, that is, the compression housing 2 is also hollow so that the pressure wheel 4 can be installed in the compression housing 2. The compression housing 2 is the air outlet part of the turbocharger 100, and the air can enter the compression housing 2 to be compressed and supercharged by the high-speed rotating pressure wheel 4.

[0033] Among them, the turbine 3 is connected to the compression wheel 4 through the rotor shaft 5 passing through the middle shell 3. In this way, in practice, when the exhaust gas enters the volute 1 and the exhaust gas energy drives the turbine 3 to rotate, the turbine 3 can drive the rotor shaft 5 to rotate, and then the rotor shaft 5 drives the compression wheel 4 to rotate, thereby realizing the power transmission from the turbine 3 to the compression wheel 4. When the compression wheel 4 rotates, it can suck air into the compression shell 2 and compress the air to supercharge the air. After compression and supercharging, more air can come out of the compression shell 2 and enter the cylinder of the engine to improve the combustion efficiency of the fuel.

[0034] Further, the electronically controlled actuator 6 is mainly used to control the functions of the turbocharger 100, such as the opening and closing of the valve, the blade angle adjustment, etc. When the turbocharger 100 is an exhaust gas turbocharger with a bypass, the electronically controlled actuator 6 can control the opening and closing of the exhaust gas valve. When the turbocharger 100 is a turbocharger with adjustable guide vanes (VGT turbocharger), the electronically controlled actuator 6 can control the angle adjustment of the VGT blades. Among them, when the turbocharger 100 is applied to a large-displacement engine, since the large-displacement engine requires more intake air to increase power, the size of the turbine 3 and the compressor 4 of the turbocharger 100 will increase accordingly, the size of the volute 1 and the compressor 2 will also increase accordingly, and the driving torque demand of the VGT blades will also be large, so that the size of the motor of the electronically controlled actuator 6 will increase relatively, resulting in the overall size of the turbocharger 100 becoming larger, the weight increasing, and the occupied space increasing. Installing the electronically controlled actuator 6 on the outside of the compressor 2 can solve this problem and reduce the overall size of the turbocharger 100.

[0035] Specifically, refer to the attached Figure 1As shown, the electronically controlled actuator 6 is installed on the compressor housing 2 and is located on the outside of the compressor housing 2. This is not only convenient for electrical connection and control of the electronically controlled actuator 6, but also can reduce the radial space occupied by the electronically controlled actuator 6 on the turbocharger 100, thereby reducing the overall structural size of the turbocharger 100, reducing its occupied space, and improving the structural compactness of the turbocharger 100. Therefore, when the turbocharger 100 is installed in a vehicle, more space can be reserved for the entire vehicle cabin.

[0036] According to the turbocharger 100 of the embodiment of the present invention, the electronically controlled actuator 6 is installed on the outer side of the compressor shell 2 to reduce the radial space occupied by the electronically controlled actuator 6 on the turbocharger 100, thereby reducing the overall structural size and occupied space of the turbocharger 100 and improving the structural compactness of the turbocharger 100.

[0037] In some embodiments, the compression shell 2 is formed with a first air inlet and a first air outlet 211. The first air inlet can be connected to the intake pipe of the engine, and the first air outlet 211 can be connected to the intake manifold of the engine. The compression wheel 4 is used to drive the air flow from the first air inlet toward the first air outlet 211. That is, when the compression wheel 4 rotates at a high speed, the compression wheel 4 can suck the air in the intake pipe from the first air inlet into the compression shell 2, and compress and supercharge the air. Then, the compressed and supercharged high-pressure air can continue to be driven by the compression wheel 4 to flow to the first air outlet 211, and flow out from the first air outlet 211 and flow into the intake manifold, and then the high-pressure air can flow into the cylinder. Due to the increase in air pressure and density, under the same cylinder volume, the amount of air entering the cylinder is more. After more air is mixed with fuel, the fuel can be burned more fully, thereby releasing more energy and improving the output power of the engine.

[0038] Furthermore, if Figure 3 As shown, the electronically controlled actuator 6 is arranged on the outside of the first air outlet 211, so that it is convenient for the electronically controlled actuator 6 to perform control, for example, it is convenient to control the VGT blades, or the opening of the first air outlet 211 and the first air inlet, etc., so as to achieve precise control of the performance of the turbocharger 100.

[0039] In some embodiments, Figure 1-Figure 3 As shown, the compressor housing 2 is provided with a compressor housing air outlet pipe 21, which is connected to the intake manifold of the engine. The compressor housing air outlet pipe 21 forms a first air outlet 211, and the first air outlet 211 is connected to the intake manifold. In this way, the high-pressure air compressed by the compression wheel 4 can flow from the inside of the compressor housing 2 through the first air outlet 211 to the intake manifold of the engine. The size and shape of the first air outlet 211 can be set according to the intake requirements of the engine to ensure the optimal air flow and pressure.

[0040] Among them, Figure 1 As shown, the compressor housing air outlet pipe 21 extends radially and obliquely, and the electronically controlled actuator 6 is mounted on the outer peripheral wall of the compressor housing air outlet pipe 21 and is closely connected with the outer peripheral wall of the compressor housing air outlet pipe 21, that is, the electronically controlled actuator 6 is arranged close to the cylinder head side of the engine, thereby, while ensuring that the electronically controlled actuator 6 can accurately control the blades or valves of the turbine 3, the space occupied by the electronically controlled actuator 6 in the radial direction of the turbocharger 100 is reduced, thereby reducing the overall radial size of the turbocharger 100, enhancing the overall structural compactness of the turbocharger 100, and further leaving more space for the entire vehicle cabin, thereby improving the overall structural compactness of the vehicle.

[0041] In some embodiments, the electronically controlled actuator 6 is detachably connected to the compression shell 2, that is, the electronically controlled actuator 6 and the compression shell 2 can be connected by detachable connection methods such as bolt connection, snap connection, and cam connection. In this way, it is convenient to install and disassemble the electronically controlled actuator 6. When the electronically controlled actuator 6 is damaged and needs to be replaced and repaired, it can be quickly and easily removed from the compression shell 2 for replacement and repair, thereby improving assembly efficiency.

[0042] Of course, the electronically controlled actuator 6 can also be connected to the compression shell 2 by non-detachable connection methods such as welding to improve the installation reliability and stability of the electronically controlled actuator 6 and avoid loosening of the electronically controlled actuator 6. The connection method between the electronically controlled actuator 6 and the compression shell 2 can be flexibly set according to actual conditions and needs, and is not limited to that described in this embodiment.

[0043] In some embodiments, the electronically controlled actuator 6 is connected to the compression shell 2 through at least one connecting member 7, that is, the electronically controlled actuator 6 and the compression shell 2 can be connected through one, two, three or even more connecting members 7, and the connecting members 7 can be bolts, screws, etc. In practice, a first through hole can be set on the electronically controlled actuator 6, and a second through hole can be set on the compression shell 2, and the positions of the first through hole and the second through hole correspond to each other, and both match the shape and size of the connecting member 7, so that the connecting member 7 can be sequentially passed through the first through hole and the second through hole to achieve a fastened connection between the electronically controlled actuator 6 and the compression shell 2.

[0044] In some embodiments, there are multiple connecting parts 7, that is, the number of connecting parts 7 can be set to two, three, four or even more. By setting multiple connecting parts 7, the electronically controlled actuator 6 and the compression shell 2 can be fixedly connected at multiple connection points through multiple connecting parts 7, thereby increasing the connection stability and reliability between the electronically controlled actuator 6 and the compression shell 2 and preventing the electronically controlled actuator 6 from loosening.

[0045] Furthermore, a plurality of connecting members 7 are distributed around the electric-controlled actuator 6 , so that each position of the electric-controlled actuator 6 can be stably connected to the compression housing 2 , further improving the connection stability and reliability between the electric-controlled actuator 6 and the compression housing 2 .

[0046] Specifically, if Figure 1 and Figure 2 As shown, a plurality of connecting members 7 distributed around the electric control actuator 6 are provided, and the connecting members 7 can be constructed as countersunk screws. Figure 1 and Figure 2 There are three countersunk screws shown in the figure, and the electric control actuator 6 is fixedly connected to the compressor shell 2 through these three countersunk screws. In the actual design, a connecting plate can also be provided, and the connecting plate can be fixedly connected to the outer peripheral wall of the compressor shell outlet pipe 21. For example, the connecting plate can be welded to the outer peripheral wall of the compressor shell outlet pipe 21 to ensure the sealing of the compressor shell outlet pipe 21, and then the connecting plate can be fixedly connected to the electric control actuator 6 through the connecting piece 7, thereby ensuring the sealing and integrity of the compressor shell outlet pipe 21.

[0047] In some embodiments, Figure 3-Figure 5 As shown, the intermediate shell 3 is provided with a cooling oil passage 31 located outside the rotor shaft 5, and the intermediate shell 3 is formed with an oil storage chamber 32 connected to the cooling oil passage 31, and the oil storage chamber 32 is used to store lubricating oil and ensure that the lubricating oil can be continuously and stably supplied to the cooling oil passage 31.

[0048] Thus, the lubricating oil can flow into the oil storage chamber 32 through the cooling oil channel 31 , and lubricate and cool the rotor shaft 5 , the intermediate floating bearing 33 , the thrust bearing 34 , etc., and finally flow out from the cooling oil channel 31 to take away the heat, thereby cooling the rotor shaft 5 .

[0049] In actual design, Figure 4 As shown, the cooling oil channel 31 is divided into three paths. An oil filling hole 35 connected to the cooling oil channel 31 is arranged above the cooling oil channel 31, and an oil outlet hole 36 connected to the cooling oil channel 31 is arranged below. The lubricating oil entering from the oil filling hole 35 flows to the intermediate floating bearing 33 and the thrust bearing 34 through the three cooling oil channels 31 and flows into the oil storage chamber 32. When the turbine 3 rotates, the oil slinger 82 on the turbine shaft 81 rotates with the turbine 3 to throw the excess lubricating oil on the turbine shaft 81 away from the turbine shaft 81, thereby effectively avoiding oil pollution and impurity accumulation caused by excessive lubricating oil, while ensuring the lubrication of components such as the turbine shaft 81 and the rotor shaft 5. Finally, the lubricating oil after absorbing heat can flow out from the oil outlet hole 36.

[0050] In addition, the oil slinging groove on the oil slinging ring 82 may be enlarged to increase the oil slinging capacity of the oil slinging ring 82 of the turbine shaft 81 , thereby improving the cleanliness and lubricity of the turbine shaft 81 and the rotor shaft 5 .

[0051] In other embodiments, the axial dimension of the rotor shaft 5 can be reduced to further reduce the overall axial structural dimension of the turbocharger 100, thereby further improving the structural compactness of the turbocharger 100. For example, the axial dimension of the rotor shaft 5 can be reduced by reducing the turbine end dimension of the rotor shaft 5. In this way, by reducing the axial dimension of the rotor shaft 5, the rotational stability of the rotor shaft 5 can be improved, and the wear and breakage of the rotor shaft 5 can be reduced.

[0052] In some embodiments, Figure 3-Figure 5 As shown, the oil storage chamber 32 is constructed as an annular chamber, and the oil storage chamber 32 is distributed around the rotor shaft 5, so that the oil storage chamber 32 is evenly distributed around the rotor shaft 5, thereby ensuring that the lubricating oil can evenly cool the rotor shaft 5, ensuring the normal and stable operation of the rotor shaft 5, reducing the wear of the rotor shaft 5, and thus improving the service life of the rotor shaft 5.

[0053] In actual design, Figure 5 As shown, the oil storage chamber 32 can be made concave while ensuring that the structural strength of the intermediate shell 3 is sufficient, that is, the depth of the oil storage chamber 32 is increased to increase the volume of the oil storage chamber 32, so that more lubricating oil can be stored in the oil storage chamber 32, thereby improving the oil storage capacity and oil return capacity of the turbocharger 100 under severe working conditions such as extreme climbing and long-term idling. At the same time, the oil storage chamber 32 is concave to form a concave surface in the radial direction, which can also avoid leakage caused by oil foam rising under working conditions such as climbing, thereby improving the sealing performance.

[0054] In some embodiments, the volute 1 is formed with a second air inlet and a second air outlet. The second air inlet can be communicated with the exhaust manifold of the engine, and the second air outlet can be communicated with the exhaust pipe of the engine.

[0055] The volute 1 is located on the air flow path between the second air inlet and the second air outlet, and the air flow at the second air inlet is suitable for driving the turbine 3 to rotate, that is, the exhaust gas discharged from the exhaust manifold can flow into the volute 1 from the second air inlet, and use the exhaust gas energy to drive the turbine 3 to rotate, and then the exhaust gas can flow from the second air outlet to the exhaust pipe and be discharged from the exhaust pipe.

[0056] The present invention also provides a vehicle.

[0057] A vehicle according to an embodiment of the present invention includes the turbocharger 100 according to any one of the above embodiments.

[0058] Among them, by installing the electronically controlled actuator 6 on the outer side of the compressor shell 2 to reduce the radial space occupied by the electronically controlled actuator 6 on the turbocharger 100, the overall structural size and occupied space of the turbocharger 100 can be reduced, and the structural compactness of the turbocharger 100 is improved, thereby leaving more space for the vehicle cabin, facilitating the arrangement of other components, and improving the overall structural compactness of the vehicle.

[0059] It should be noted that the turbocharger 100 of the present invention can also be used in other equipment with a smaller space to facilitate installation of the turbocharger 100, such as ships, airplanes, etc.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0061] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A turbocharger, characterized in that: include: A volute, a compression shell and an intermediate shell, wherein the intermediate shell is connected between the volute and the compression shell, a turbine is arranged in the volute, a compression wheel is arranged in the compression shell, and the turbine and the compression wheel are connected via a rotor shaft passing through the intermediate shell; The electrically controlled actuator is installed on the compression shell and is located outside the compression shell.

2. The turbocharger according to claim 1, characterized in that: The compression shell is formed with a first air inlet and a first air outlet, the compression wheel is used to drive the airflow to flow from the first air inlet toward the first air outlet, and the electric control actuator is arranged on the outer side of the first air outlet.

3. The turbocharger according to claim 2, characterized in that: The compressor shell is provided with a compressor shell outlet pipe, the compressor shell outlet pipe is formed with the first outlet port, and the electric control actuator is installed on the outer peripheral wall of the compressor shell outlet pipe.

4. The turbocharger according to claim 1, characterized in that: The electric-controlled actuator is detachably connected to the compression shell.

5. The turbocharger according to claim 4, characterized in that: The electric-controlled actuator is connected to the compression shell via at least one connecting piece.

6. The turbocharger according to claim 5, characterized in that There are multiple connecting members, and the multiple connecting members are distributed around the electronically controlled actuator.

7. The turbocharger according to any one of claims 1 to 6, characterized in that: The intermediate housing is provided with a cooling oil passage located outside the rotor shaft, and the intermediate housing is formed with an oil storage cavity communicated with the cooling oil passage.

8. The turbocharger according to claim 7, characterized in that: The oil storage chamber is configured as an annular chamber, and the oil storage chamber is distributed around the rotor shaft.

9. The turbocharger according to any one of claims 1 to 6, characterized in that: The volute is formed with a second air inlet and a second air outlet, the volute is located on an air flow path between the second air inlet and the second air outlet, and the air flow at the second air inlet is suitable for driving the turbine to rotate.

10. A vehicle, characterized in that: The invention comprises the turbocharger according to any one of claims 1 to 9.

Images