Turbocharger and vehicle
By setting up an insulation tube on the housing of the turbocharger and introducing engine coolant, the problem of water condensation or freezing near the impeller of the supercharger under low temperature environment is solved, and the effect of improving the reliability of the supercharger is achieved.
Patent Information
- Application Number
- CN202421936731.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In low temperature environments, water near the pressure impeller of the turbocharger will condense or freeze, affecting the reliability of the supercharger.
The insulation tube is installed on the housing of the turbocharger and the engine coolant is introduced into the insulation tube to increase the housing temperature and prevent the generation of condensation and icing.
Through the use of the insulation pipe, the temperature of the supercharger pressure end is effectively improved, the generation of condensation water and icing is avoided, and the reliability of the turbocharger is improved.
Smart Images
Figure CN222863499U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicles, and in particular relates to a turbocharger and a vehicle. Background Art
[0002] With the further improvement of the thermal efficiency requirements of gasoline engines, the application of low-pressure EGR systems has become more extensive. However, since the main component of the EGR medium is engine exhaust gas, which contains a lot of water, the EGR medium enters the compression end of the supercharger through the EGR joint, and the EGR medium mixes with the air at the compression end inlet and flows through the impeller, and then is discharged from the compression end outlet. Therefore, in a low temperature environment, this part of the water will condense or even freeze on the wall near the impeller, thereby affecting the reliability of the impeller at the compression end of the supercharger. Utility Model Content
[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the utility model provides a turbocharger that can reduce or avoid the generation of condensed water and ice.
[0004] An embodiment of the utility model also provides a vehicle.
[0005] The turbocharger of the utility model embodiment includes: a shell, the shell has a pressure end and a vortex end, the pressure end has an impeller; an EGR joint, the EGR joint is connected to the shell, and the EGR joint is arranged adjacent to the pressure end; an insulation pipe, the insulation pipe is connected to the outside of the shell, and the insulation pipe is located on the side of the impeller close to the EGR joint in the axial direction of the impeller, and the insulation pipe is suitable for passing engine coolant.
[0006] The turbocharger of the embodiment of the utility model is provided with a heat preservation pipe on the shell of the supercharger, and the engine coolant is passed into the heat preservation pipe. Since the temperature of the engine coolant is between 80°C and 100°C during the operation of the engine, the coolant can be used to insulate the pressure end of the supercharger, thereby increasing the temperature of the shell, thereby reducing or avoiding the generation of condensed water and ice at the pressure end of the supercharger.
[0007] In some embodiments, the thermal insulation tube surrounds the circumference of the shell.
[0008] In some embodiments, the interior of the thermal insulation tube has a plurality of fins, and the plurality of fins are arranged at intervals in the extension direction of the thermal insulation tube.
[0009] In some embodiments, the fins extend obliquely in a direction away from the inner wall of the thermal insulation tube.
[0010] In some embodiments, the fins are integrally formed with the thermal insulation tube.
[0011] In some embodiments, the thermal insulation tube is integrally formed with the shell.
[0012] In some embodiments, the turbocharger further includes a connector, wherein the connector is connected to the thermal insulation pipe, and the connector is suitable for being connected to an engine cooling system.
[0013] In some embodiments, the connector is integrally formed with the thermal insulation pipe or is detachably connected to the thermal insulation pipe.
[0014] In some embodiments, the turbocharger further includes a connecting pipe, one end of which is connected to the connector, and the other end of which is suitable for being connected to an engine cooling system.
[0015] The vehicle of the embodiment of the utility model comprises: a turbocharger, wherein the turbocharger is the turbocharger described in any one of the above embodiments; and an engine cooling system, wherein the engine cooling system is connected to the insulation pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic structural diagram of a turbocharger according to an embodiment of the utility model.
[0017] Figure 2 It is a structural schematic diagram of a turbocharger from another perspective of an embodiment of the utility model.
[0018] Figure 3 It is a cross-sectional view of the shell and the thermal insulation pipe of an embodiment of the utility model.
[0019] Figure 4 It is a cross-sectional view of a shell and a thermal insulation pipe of another embodiment of the utility model.
[0020] Figure 5 It is a cross-sectional view of a shell and a thermal insulation pipe of another embodiment of the utility model.
[0021] Reference numerals:
[0022] Shell 1, pressure end 11, turbine end 12,
[0023] EGR connector 2,
[0024] Insulation pipe 3, flow channel 31,
[0025] Fin 4, connecting pipe 5, connecting head 6. DETAILED DESCRIPTION
[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.
[0027] The turbocharger of the embodiment of the utility model includes a shell 1, an EGR joint 2 and an insulation pipe 3. The shell 1 is provided with a pressure end 11 and a vortex end 12. The pressure end 11 is provided with an impeller. The EGR joint 2 is connected to the shell 1 and is arranged adjacent to the pressure end 11. The insulation pipe 3 is connected to the outer side of the shell 1 and is located on a side of the impeller close to the EGR joint 2 in the axial direction of the impeller. The insulation pipe 3 is suitable for passing engine coolant.
[0028] Specifically, Figure 1 and Figure 2 As shown, the shell 1 has a pressure end 11 and a vortex end 12 in its length direction. The length direction of the shell 1 is the same as the axial direction of the impeller. The pressure end 11 has an inlet and an outlet arranged along the length direction of the shell 1. The EGR joint 2 is located between the inlet and the outlet of the pressure end 11. The insulation pipe 3 is located between the impeller of the pressure end 11 and the EGR joint 2, and the insulation pipe 3 is arranged adjacent to the inlet of the pressure end 11.
[0029] The insulation pipe 3 is fixed on the outer wall surface of the shell 1. For example, the insulation pipe 3 can be fixed on the shell 1 by welding, or the insulation pipe 3 can be fixed on the outer wall surface of the shell 1 by bolting.
[0030] The turbocharger of the embodiment of the utility model is provided with a heat preservation pipe 3 on the housing 1 of the supercharger, and the engine coolant is passed into the heat preservation pipe 3. Since the temperature of the engine coolant is between 80°C and 100°C during the operation of the engine, the coolant can be used to keep the pressure end 11 of the supercharger warm, thereby increasing the temperature of the housing 1, thereby reducing or avoiding the generation of condensed water and ice at the pressure end 11 of the supercharger.
[0031] In some embodiments, the thermal insulation tube 3 surrounds the circumference of the shell 1 .
[0032] For example, the thermal insulation pipes 3 are distributed in a ring shape, and the thermal insulation pipes 3 are coiled on the outer wall surface of the shell 1 .
[0033] It should be noted that the insulation pipe 3 can be completely surrounded by the circumference of the shell 1, for example, the insulation pipe 3 is 360° surrounded by the shell 1, or it can be half-surrounded, for example, the insulation pipe 3 is 180° surrounded by the shell 1, or the insulation pipe 3 can be partially surrounded by the outer circumference of the shell 1, for example, the insulation pipe 3 is 60° surrounded by the shell 1.
[0034] By wrapping the insulation pipe 3 around the shell 1, the contact area between the insulation pipe 3 and the shell 1 can be increased, thereby increasing the heat exchange area, so that the coolant can more fully heat the shell 1 of the pressure end 11 of the supercharger, further reducing or avoiding the risk of condensation or ice formation at the pressure end 11. In addition, the insulation pipe 3 wraps around the outer periphery of the shell 1, which can ensure the uniformity of heating the pressure end 11 and avoid the possibility that the moisture in the exhaust gas will still produce condensation or ice due to uneven heating.
[0035] In some embodiments, the interior of the thermal insulation tube 3 has a plurality of fins 4 , and the plurality of fins 4 are arranged at intervals in the extension direction of the thermal insulation tube 3 .
[0036] Specifically, Figure 5 As shown, a plurality of fins 4 are arranged at intervals along the length direction of the insulation tube 3. By providing a plurality of fins 4, the flow velocity of the coolant in the flow channel 31 inside the insulation tube 3 can be slowed down, so that the heat of the coolant can be transferred to the shell 1 more evenly, and by providing the fins 4, the heat exchange area can be further increased, so that the coolant can further heat the pressure end 11 of the shell 1.
[0037] In some embodiments, the fins 4 extend obliquely in a direction away from the inner wall of the thermal insulation tube 3 .
[0038] Specifically, Figure 5 As shown, the fin 4 extends obliquely in the flow channel 31 in a direction away from the inner wall surface of the insulation tube 3. The oblique extension of the fin 4 can reduce the stress concentration between the fin 4 and the inner wall surface of the insulation tube 3 and improve the use stability of the fin 4.
[0039] In some embodiments, the fins 4 and the thermal insulation tube 3 are integrally formed, for example, the fins 4 and the thermal insulation tube 3 can be integrally die-cast.
[0040] The fins 4 and the insulation tube 3 are integrally formed, which can improve the structural strength of the fins 4 and prevent the fins 4 from falling off and causing damage to the supercharger and the engine.
[0041] In some embodiments, the insulation pipe 3 is integrally formed with the shell 1. For example, the insulation pipe 3 and the shell 1 are integrally die-casted, and the insulation pipe 3 and the shell 1 are integrally formed, which can improve the structural strength of the insulation pipe 3 and prevent the insulation pipe 3 from falling off and affecting the heating and heat preservation effect of the shell 1.
[0042] In some embodiments, the turbocharger further includes a connector 6, which is connected to the insulation pipe 3, and the connector 6 is suitable for being connected to the engine cooling system.
[0043] Specifically, Figure 1 and Figure 2As shown, the connector 6 is located at the inlet and outlet of the insulation pipe 3. The connector 6 at the inlet of the insulation pipe 3 is connected to the outlet of the engine cooling system, and the connector 6 at the outlet of the insulation pipe 3 is connected to the inlet of the engine cooling system. By setting the connector 6, the connection and assembly efficiency between the engine cooling system and the insulation pipe 3 can be improved.
[0044] In some embodiments, the connector 6 is integrally formed with the insulation pipe 3 or is detachably connected. For example, the connector 6 is integrally formed with the insulation pipe 3 by die casting. The connector 6 is integrally formed with the insulation pipe 3, which can not only improve the structural strength of the connector 6, but also improve the sealing between the connector 6 and the insulation pipe 3 to avoid leakage of the coolant.
[0045] It should be noted that the connector 6 and the thermal insulation pipe 3 can also be connected by welding or crimping.
[0046] In some embodiments, the turbocharger further includes a connecting pipe 5, one end of which is connected to a connector 6, and the other end of the connecting pipe 5 is suitable for being connected to an engine cooling system.
[0047] It should be noted that the connecting pipe 5 is a hose, and the connecting pipe 5 is divided into two sections. One section of the connecting pipe 5 is located between the engine cooling system and the inlet of the insulation pipe 3, and the other section of the connecting pipe 5 is located between the engine cooling system and the outlet of the insulation pipe 3. The connection between the insulation pipe 3 and the engine cooling system is achieved by setting the connecting pipe 5. The soft connecting pipe 5 can improve the assembly efficiency and adaptability between the insulation pipe 3 and the engine cooling system.
[0048] The vehicle of the embodiment of the utility model comprises a turbocharger and an engine cooling system. The turbocharger is the turbocharger of any one of the above embodiments. The engine cooling system is connected to the insulation pipe 3 .
[0049] The vehicle of the embodiment of the utility model adopts the turbocharger of the above embodiment. By arranging a heat preservation pipe 3 on the housing 1 of the supercharger and letting the engine coolant flow into the heat preservation pipe 3, since the temperature of the engine coolant is between 80°C and 100°C during the operation of the engine, the coolant can be used to insulate the pressure end 11 of the supercharger, thereby increasing the temperature of the housing 1, thereby reducing or avoiding the generation of condensation and ice at the pressure end 11 of the supercharger.
[0050] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the 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 a limitation on the present invention.
[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0053] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0054] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A turbocharger, characterized in that: include: A casing, wherein the casing has a pressure end and a vortex end, and the pressure end has an impeller; An EGR joint, the EGR joint is connected to the housing and is arranged adjacent to the pressure end; The insulation pipe is connected to the outside of the shell and is located on a side of the impeller close to the EGR joint in the axial direction of the impeller. The insulation pipe is suitable for passing engine coolant.
2. The turbocharger according to claim 1, characterized in that: The thermal insulation pipe surrounds the circumference of the shell.
3. The turbocharger according to claim 1, characterized in that: The heat preservation pipe has a plurality of fins inside, and the plurality of fins are arranged at intervals in the extending direction of the heat preservation pipe.
4. The turbocharger according to claim 3, characterized in that: The fins extend obliquely in a direction away from the inner wall of the thermal insulation pipe.
5. The turbocharger according to claim 3 or 4, characterized in that: The fins and the thermal insulation pipe are integrally formed.
6. The turbocharger according to claim 1, characterized in that: The thermal insulation pipe is integrally formed with the shell.
7. The turbocharger according to claim 1, characterized in that: It also includes a connector, which is connected to the thermal insulation pipe and is suitable for being connected to an engine cooling system.
8. The turbocharger according to claim 7, characterized in that: The connector is integrally formed with the thermal insulation pipe or is detachably connected to the thermal insulation pipe.
9. The turbocharger according to claim 7 or 8, characterized in that: It also includes a connecting pipe, one end of which is connected to the connecting head, and the other end of which is suitable for being connected to an engine cooling system.
10. A vehicle, characterized in that: include: A turbocharger, wherein the turbocharger is the turbocharger according to any one of claims 1 to 9; An engine cooling system is connected to the thermal insulation pipe.