Turbocharger, power system and vehicle
By setting an annular elastic sleeve between the turbocharger intermediate housing and the actuation disc, the problems of high machining precision and difficult installation of the limit pin are solved, achieving low cost, easy maintenance and reliable use.
Patent Information
- Application Number
- CN202520425354.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Existing turbocharger limit pins have high machining precision, high cost, are difficult to install, difficult to maintain, and are prone to falling off, affecting normal use.
An annular elastic sleeve is used between the intermediate shell and the actuating disc. The annular elastic sleeve provides radial elastic contact to avoid hard friction. The annular receiving groove enables quick assembly and positioning. Heat-resistant elastic materials such as high-speed steel or high-carbon chromium stainless steel are used.
It reduces the machining precision requirements and costs of turbochargers, simplifies the installation process, facilitates maintenance, prevents parts from falling off, and ensures normal and safe use.
Smart Images
Figure CN223923141U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile accessories, especially to a turbocharger, power system and vehicle. BACKGROUND
[0002] As shown in Figure 1 and Figure 2 , a common turbocharger 100 is a turbocharger with a variable cross-section nozzle ring, the turbocharger 100 includes an intermediate casing 10, a dial plate 20 and nozzle ring blades 40, the state of the nozzle ring blades 40 can be adjusted by driving the dial plate 20, so that the effective flow area in the turbine nozzle can be changed, and the exhaust flow to the turbine is adjusted by controlling the position of the nozzle ring blades 40. In this way, the power output of the turbine can be adjusted, which makes the control range of the engine power output larger.
[0003] As shown in Figure 1 and Figure 2 , the dial plate 20 and the intermediate casing 10 are both metal parts, the intermediate casing 10 is fixed on the engine, the dial plate 20 will rotate relatively during work, and the dial plate 20 and the intermediate casing 10 will rub. The dial plate 20 needs to use a material with high hardness and wear resistance due to its special performance, and the intermediate casing 10 should be made of a material with sufficient hardness to resist the corresponding friction. Since the intermediate casing 10 generally uses cast iron parts, has a large volume and needs to be machined in many sizes, the intermediate casing 10 cannot use a material with high hardness and wear resistance in practice. Therefore, the turbocharger 100 further includes a limiting pin 50, the limiting pin 50 is embedded in the intermediate casing 10, the outer periphery of the limiting pin 50 abuts against the inner ring of the dial plate 20, and the limiting pin 50 and the dial plate 20 both use a material with high hardness and wear resistance. When the turbocharger 100 operates, the dial plate 20 preferentially rubs the surface of the limiting pin 50, reducing the friction loss.
[0004] However, since the limiting pin 50 has a small structure, the limiting pin 50 requires high machining precision, and the turbocharger 100 has high machining precision and high cost. In addition, the limiting pin 50 and the intermediate casing 10 need to be assembled by interference, so the limiting pin 50 and the intermediate casing 10 are difficult to install and difficult to maintain. In addition, when the turbocharger 100 works, the limiting pin 50 has the risk of falling off the intermediate casing 10 and falling into the interior of the turbocharger 100, affecting the normal and safe use of the turbocharger 100.
[0005] Therefore, it is urgent to design a new turbocharger, power system and vehicle to improve the problems of high machining precision requirement, high cost, difficult installation, difficult maintenance and easy failure of the turbocharger. UTILITY MODEL CONTENTS
[0006] The first purpose of the utility model lies in providing a turbocharger, which has low machining precision requirement, low cost, simple installation, convenient maintenance and is not prone to failure.
[0007] To achieve the purpose, the utility model adopts the following technical solutions:
[0008] A turbocharger comprises:
[0009] An intermediate shell;
[0010] A dial plate is sleeved on the outer periphery of the intermediate shell; and
[0011] An annular elastic sleeve is sleeved on the outer periphery of the intermediate shell and located between the intermediate shell and the dial plate, and the intermediate shell and the dial plate elastically abut along the radial direction through the annular elastic sleeve.
[0012] As an optional scheme, at least one of the intermediate shell and the dial plate is provided with an annular accommodating groove, and at least part of the annular elastic sleeve is accommodated in the annular accommodating groove.
[0013] As an optional scheme, the annular accommodating groove has an opening and a bottom surface, and the width of the longitudinal section of the annular accommodating groove presents a decreasing trend from the opening to the bottom surface.
[0014] As an optional scheme, the longitudinal section of the annular accommodating groove comprises a guide section and an accommodating section, and the guide section and the accommodating section are sequentially connected from the opening to the bottom surface.
[0015] As an optional scheme, the annular elastic sleeve is made of heat-resistant elastic material.
[0016] As an optional scheme, the heat-resistant elastic material is high-speed steel or high-carbon chromium stainless steel.
[0017] As an optional scheme, the annular elastic sleeve is provided with a notch.
[0018] As an optional scheme, the notch is linear or zigzag-shaped.
[0019] The second purpose of the utility model lies in providing a power system, which has low machining precision requirement, low cost, simple installation, convenient maintenance and is not prone to failure.
[0020] To achieve the purpose, the utility model adopts the following technical solutions:
[0021] A power system comprises an engine, and further comprises the turbocharger as described above, and the turbocharger is connected with the engine.
[0022] The third purpose of the utility model provides a vehicle, low processing precision requirement, low cost, simple installation, convenient maintenance and not prone to failure.
[0023] In order to achieve the purpose, the utility model adopts the following technical scheme:
[0024] A vehicle comprises the turbocharger or the power system.
[0025] The utility model discloses beneficial effects:
[0026] The utility model provides a turbocharger, the turbocharger includes intermediate shell, dial disc and annular elastic sleeve, dial disc is set in the outer periphery of intermediate shell, and annular elastic sleeve is set in the outer periphery of intermediate shell and is located between intermediate shell and dial disc, and intermediate shell and dial disc are elastically contacted along the radial direction through annular elastic sleeve, and annular elastic sleeve is elastically deformed in the radial direction, and simultaneously, annular elastic sleeve has elastic support effect, can avoid the hard friction between intermediate shell and dial disc.
[0027] Compared with the limit pin of prior art, the annular elastic sleeve structure is relatively larger, so the processing precision requirement of annular elastic sleeve is relatively lower, and the processing cost of turbocharger is lower.In addition, only need to assemble annular elastic sleeve between intermediate shell and dial disc, can realize the quick assembly of annular elastic sleeve, intermediate shell and dial disc, and it is convenient to realize the maintenance of turbocharger.In addition, the volume of annular elastic sleeve is relatively large, and annular elastic sleeve will not have the risk of falling off from intermediate shell and falling into the inside of turbocharger, can guarantee that turbocharger is normally, safely and reliably used.
[0028] The power system provided by the utility model, through the application of the above-mentioned turbocharger, low processing precision requirement, low cost, simple installation, convenient maintenance and not prone to failure.
[0029] The vehicle provided by the utility model, through the application of the above-mentioned turbocharger or power system, low processing precision requirement, low cost, simple installation, convenient maintenance and not prone to failure. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 It is the explosion map of the turbocharger provided by prior art;
[0031] Figure 2 It is the partial enlarged view of the turbocharger provided by prior art;
[0032] Figure 3 It is the explosion map of the turbocharger provided by the utility model embodiment;
[0033] Figure 4 It is the first partial sectional view of the turbocharger provided by the utility model embodiment;
[0034] Figure 5 Figure 2 is a second partial sectional view of the turbocharger provided by the embodiments of the present application;
[0035] Figure 6 Figure 3 is a structural schematic view of a first annular elastic sleeve provided by the embodiments of the present application;
[0036] Figure 7 Figure 4 is a structural schematic view of a second annular elastic sleeve provided by the embodiments of the present application.
[0037] In the drawings:
[0038] 100, turbocharger;
[0039] 10, intermediate shell; 11, annular accommodating groove; 111, guide section; 1111, open end; 112, accommodating section; 1121, bottom surface;
[0040] 20, actuating disc;
[0041] 30, annular elastic sleeve; 33, notch;
[0042] 40, nozzle ring blade;
[0043] 50, limiting pin. DETAILED DESCRIPTION
[0044] The technical solutions of the present application will be further described below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, not all.
[0045] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0046] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but is in contact through other feature between them.Moreover, first feature is in second feature "on", "above" and "on" include that first feature is in second feature directly above and obliquely above, or just indicate that first feature horizontal height is higher than second feature.First feature is in second feature "under", "below" and "under" include that first feature is in second feature directly below and obliquely below, or just indicate that first feature horizontal height is less than second feature.
[0047] In the description of the embodiments of the present disclosure, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0048] The present embodiment relates to a kind of vehicles, vehicle includes car body and power system, power system is arranged in car body, power system can provide power for vehicle, ensure that vehicle can normally travel, wherein, vehicle can be passenger car, passenger car, truck, special vehicle etc., all types of vehicles are within the protection scope of the present disclosure embodiment.
[0049] Specifically, the power system includes an engine and a turbocharger, wherein the engine is mainly used to provide power for the vehicle, and the engine converts chemical energy into mechanical energy by burning gasoline or diesel fuel, thereby driving the vehicle to travel. The performance of the engine directly affects the acceleration ability, maximum speed and fuel economy of the vehicle. The turbocharger increases the intake amount of air into the engine cylinder by compressing air, thereby improving the power and torque of the engine. The turbocharger drives the turbine using the exhaust gas discharged from the engine, thereby driving the compressor to compress air and increase the intake amount. This way significantly improves the power performance of the engine without increasing the displacement of the engine.
[0050] As shown in Figure 1 and Figure 2 A common turbocharger 100 is a turbocharger with a variable cross-section nozzle ring, which includes an intermediate casing 10, a dial plate 20 and nozzle ring blades 40. By driving the dial plate 20, the state of the nozzle ring blades 40 can be adjusted, thereby changing the effective flow area in the turbine nozzle. By controlling the position of the nozzle ring blades 40, the exhaust gas flow to the turbine can be adjusted. In this way, the power output of the turbine can be adjusted, which makes the control range of the engine power output larger.
[0051] The toggle plate 20 and the intermediate shell 10 are metal components, the intermediate shell 10 is fixed on the engine, the toggle plate 20 rotates relatively during work, and the toggle plate 20 and the intermediate shell 10 will rub. The toggle plate 20 needs to be made of high-hardness and wear-resistant material due to its special performance, and the intermediate shell 10 should be made of material with sufficient hardness to resist corresponding friction. Since the intermediate shell 10 is generally made of cast iron, has a large volume and needs to be machined in many sizes, the intermediate shell 10 cannot be made of high-hardness and wear-resistant material in practice. Therefore, the turbocharger 100 further comprises a limiting pin 50 embedded in the intermediate shell 10, the outer circumferential surface of the limiting pin 50 abuts against the inner ring of the toggle plate 20, and the limiting pin 50 and the toggle plate 20 are made of high-hardness and wear-resistant material. When the turbocharger 100 is running, the toggle plate 20 preferentially rubs against the surface of the limiting pin 50, reducing friction loss.
[0052] However, since the limiting pin 50 has a small structure, the limiting pin 50 requires high machining precision, and the turbocharger 100 has high machining precision and high cost. In addition, the limiting pin 50 and the intermediate shell 10 need to be assembled by interference, so the limiting pin 50 and the intermediate shell 10 are difficult to install and difficult to maintain. In addition, when the turbocharger 100 is working, the limiting pin 50 has the risk of falling off the intermediate shell 10 and falling into the interior of the turbocharger 100, affecting the normal and safe use of the turbocharger 100.
[0053] To solve the above problems, as shown in Figures 3 to 5 The turbocharger 100 of the embodiment of the present disclosure comprises an intermediate shell 10, a toggle plate 20, and a ring-shaped elastic sleeve 30. The toggle plate 20 is sleeved on the outer periphery of the intermediate shell 10, and the ring-shaped elastic sleeve 30 is sleeved on the outer periphery of the intermediate shell 10 and located between the intermediate shell 10 and the toggle plate 20. The intermediate shell 10 and the toggle plate 20 elastically abut along the radial direction through the ring-shaped elastic sleeve 30. The ring-shaped elastic sleeve 30 elastically deforms in the radial direction, and at the same time, the ring-shaped elastic sleeve 30 has an elastic supporting effect, which can avoid hard friction between the intermediate shell 10 and the toggle plate 20.
[0054] Compared with the limiting pin 50 of the prior art, the ring-shaped elastic sleeve 30 has a relatively larger structure, so the ring-shaped elastic sleeve 30 has a relatively lower machining precision requirement, and the turbocharger 100 has a lower machining cost. In addition, only the ring-shaped elastic sleeve 30 needs to be assembled between the intermediate shell 10 and the toggle plate 20, which can realize the rapid assembly of the ring-shaped elastic sleeve 30, the intermediate shell 10 and the toggle plate 20, and facilitate the maintenance of the turbocharger 100. In addition, the ring-shaped elastic sleeve 30 has a relatively large overall volume, so the ring-shaped elastic sleeve 30 will not fall off the intermediate shell 10 and fall into the interior of the turbocharger 100, which can ensure the normal, safe and reliable use of the turbocharger 100.
[0055] In an optional embodiment, as shown in Figures 3 to 5 The intermediate shell 10 is provided with a ring-shaped accommodating groove 11, and at least part of the ring-shaped elastic sleeve 30 is accommodated in the ring-shaped accommodating groove 11. Through the arrangement of the ring-shaped accommodating groove 11, the ring-shaped elastic sleeve 30 can be quickly and accurately assembled with the intermediate shell 10. The ring-shaped accommodating groove 11 can achieve better limiting effect on the ring-shaped elastic sleeve 30, and can avoid the ring-shaped elastic sleeve 30 from falling off the intermediate shell 10.
[0056] In an optional embodiment, the dial 20 can also be provided with a ring-shaped accommodating groove 11, and at least part of the ring-shaped elastic sleeve 30 is accommodated in the ring-shaped accommodating groove 11. Through the arrangement of the ring-shaped accommodating groove 11, the ring-shaped elastic sleeve 30 can be quickly and accurately assembled with the dial 20. The ring-shaped accommodating groove 11 can achieve better limiting effect on the ring-shaped elastic sleeve 30, and can avoid the ring-shaped elastic sleeve 30 from falling off the dial 20.
[0057] In an optional embodiment, the intermediate shell 10 and the dial 20 can be simultaneously provided with a ring-shaped accommodating groove 11, and at least part of the ring-shaped elastic sleeve 30 is accommodated in the ring-shaped accommodating groove 11. Through the arrangement of the ring-shaped accommodating groove 11, the ring-shaped elastic sleeve 30 can be quickly and accurately assembled with the intermediate shell 10 and the dial 20, respectively. The ring-shaped accommodating groove 11 can achieve better limiting effect on the ring-shaped elastic sleeve 30, and can avoid the ring-shaped elastic sleeve 30 from falling off the intermediate shell 10 or the dial 20.
[0058] In an optional embodiment, as shown in Figure 4 and Figure 5 The ring-shaped accommodating groove 11 has an opening 1111 and a bottom surface 1121. From the opening 1111 to the bottom surface 1121, the width of the longitudinal section of the ring-shaped accommodating groove 11 shows a decreasing trend. Through the arrangement of the opening 1111, the ring-shaped elastic sleeve 30 can be quickly and gradually corrected and aligned with the ring-shaped accommodating groove 11. Through the arrangement of the ring-shaped accommodating groove 11 with this shape, the ring-shaped elastic sleeve 30 can be quickly and accurately installed with the intermediate shell 10.
[0059] In an optional embodiment, as shown in Figure 4 and Figure 5 The longitudinal section of the ring-shaped accommodating groove 11 includes a guide segment 111 and a containing segment 112. The guide segment 111 and the containing segment 112 are connected in sequence from the opening 1111 to the bottom surface 1121. Through the guide segment 111, the ring-shaped accommodating groove 11 can be quickly and accurately aligned with the ring-shaped elastic sleeve 30. The arrangement of the containing segment 112 can achieve effective containing effect on the ring-shaped elastic sleeve 30.
[0060] In an optional embodiment, as shown in Figures 3 to 5As shown, the annular elastic sleeve 30 is made of heat-resistant elastic material, which can ensure better elastic deformation effect of the annular elastic sleeve 30, and can also ensure better use effect and longer service life of the annular elastic sleeve 30 in high-temperature gas environment. For example, the heat-resistant elastic material can be high-speed steel, high-carbon chromium stainless steel, etc. The aforementioned materials have better stability in high-temperature environment, and the high-speed steel and high-carbon chromium stainless steel also have better elastic deformation performance.
[0061] In an optional embodiment, as shown in Figure 6 and Figure 7 As shown, the annular elastic sleeve 30 is provided with a notch 33, which can make the annular elastic sleeve 30 have better elastic deformation performance, and can also realize quick assembly of the annular elastic sleeve 30 and the intermediate shell 10.
[0062] In an optional embodiment, as shown in Figure 6 The shape of the notch 33 can be linear, and the linear notch 33 is more conducive to quick processing of the notch 33.
[0063] In an optional embodiment, as shown in Figure 7 The shape of the notch 33 can be a broken line, and the broken-line notch 33 can avoid excessive deformation of the annular elastic sleeve 30.
[0064] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A turbocharger, characterized in that, include: Intermediate shell (10); The actuating disc (20) is fitted around the outer periphery of the intermediate shell (10); as well as An annular elastic sleeve (30) is sleeved on the outer periphery of the intermediate shell (10) and located between the intermediate shell (10) and the actuating disk (20). The intermediate shell (10) and the actuating disk (20) are radially elastically abutted by the annular elastic sleeve (30).
2. The turbocharger according to claim 1, characterized in that, At least one of the intermediate shell (10) and the actuating disc (20) is provided with an annular receiving groove (11), and at least part of the annular elastic sleeve (30) is received in the annular receiving groove (11).
3. The turbocharger according to claim 2, characterized in that, The annular receiving groove (11) has an opening (1111) and a bottom surface (1121). From the opening (1111) to the bottom surface (1121), the width of the longitudinal section of the annular receiving groove (11) decreases.
4. The turbocharger according to claim 3, characterized in that, The longitudinal section of the annular receiving groove (11) includes a guide section (111) and a receiving section (112), and the guide section (111) and the receiving section (112) are connected sequentially from the opening (1111) to the bottom surface (1121).
5. The turbocharger according to any one of claims 1 to 4, characterized in that, The annular elastic sleeve (30) is made of heat-resistant elastic material.
6. The turbocharger according to claim 5, characterized in that, The heat-resistant elastic material is high-speed steel or high-carbon chromium stainless steel.
7. The turbocharger according to any one of claims 1 to 4, characterized in that, The annular elastic sleeve (30) has a notch (33).
8. The turbocharger according to claim 7, characterized in that, The shape of the notch (33) is either straight or broken.
9. A power system, comprising an engine, characterized in that, The power system further includes a turbocharger as described in any one of claims 1 to 8, wherein the turbocharger is connected to the engine.
10. A vehicle, characterized in that, Includes the turbocharger as described in any one of claims 1 to 8 or the power system as described in claim 9.