Opening degree adjusting assembly for automobile nozzle ring

Abstract

The invention belongs to the technical field of turbocharging, and discloses an opening degree adjusting assembly for an automobile nozzle ring, which comprises a compression mechanism, and further comprises a turbine assembly fixedly arranged on the compression mechanism; and the variable air guide assembly is arranged in the turbine assembly. In the working process of the engine, the connecting ring drives the first arc-shaped guide vane to be gradually opened, a waste gas circulation channel is expanded, and when the engine is in the high-speed working condition, the connecting ring, the first arc-shaped guide vane and the second arc-shaped guide vane axially move to enter the containing annular groove in the turbine exhaust part; at the moment, the waste gas enters the turbine exhaust part to be in direct contact with the turbine unit, so that the turbine unit and the compressor unit are pushed to work, the phenomena of vibration and local kinetic energy loss caused by vortex and wake of the waste gas due to the influence of guide vanes of the nozzle ring are avoided in the process, and meanwhile, the waste gas guide efficiency of the engine is improved.

Description

Technical Field

[0001] This invention belongs to the field of turbocharging technology, specifically a component for adjusting the opening of an automotive nozzle ring. Background Technology

[0002] A turbocharging system consists of a turbine (driven by exhaust gas) and a compressor (for intake gas pressurization), connected by a shaft. Exhaust gas drives the turbine to rotate, which in turn drives the coaxial compressor to force more air into the cylinders, resulting in more complete fuel combustion and increased power output. Variable geometry turbocharger nozzle rings are an advanced turbocharging technology that optimizes engine performance across all operating conditions by dynamically adjusting the turbine's intake cross-sectional area. They consist of a set of rotatable guide vanes (nozzle rings) surrounding the turbine inlet, with the vane angle adjusted in real-time via electronic or hydraulic actuators. By changing the flow cross-sectional area of ​​exhaust gas entering the turbine, the exhaust gas velocity and turbine speed are adjusted, thus matching the boost demand at different engine speeds. At low speeds, the vane angle decreases, narrowing the airflow channel and increasing the exhaust gas velocity to quickly drive the turbine (reducing turbo lag). At high speeds, the vane angle increases, widening the channel, reducing exhaust back pressure, preventing over-boosting, and improving efficiency.

[0003] Currently, the nozzle ring of a variable geometry turbocharger consists of a set of rotatable guide vanes. However, when the engine is operating at high speed, the guide vanes are fully open to expand the channel and reduce exhaust back pressure. Even when the vanes are fully deployed, their physical thickness and trailing edge shape will still generate vortices and wakes in the airflow, resulting in local kinetic energy loss. At the same time, it will also cause vibration and increase the vibration of the turbocharger. When the high-speed airflow flows on the surface of the vanes, it will cause boundary layer separation, increase turbulence intensity, and reduce guide efficiency. Therefore, an opening adjustment component for automotive nozzle rings is proposed. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides an opening adjustment component for an automotive nozzle ring, which solves the problem in the prior art that when the engine blades are fully deployed at high speeds, vortices and wakes are generated in the airflow, resulting in local kinetic energy loss, vibration, and reduced flow guiding efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an opening adjustment assembly for an automotive nozzle ring, comprising a compression mechanism, and further comprising: A turbine assembly, which is fixedly mounted on the compression mechanism; A variable air guide assembly, wherein the variable air guide assembly is disposed inside the turbine assembly; The turbine assembly is fixedly mounted on the compression mechanism as a turbine exhaust component. The turbine exhaust component has a receiving annular groove inside, and the side of the turbine exhaust component has a second slot and a sliding groove that communicate with the receiving annular groove. The variable air guide assembly includes a connecting ring placed in a receiving annular groove, and the side of the connecting ring is fixed with first arc-shaped guide vanes that pass through the slide groove. The side of the connecting ring is provided with an annular groove, and a second arc-shaped guide vane is provided in the second slot. The second arc-shaped guide vane slides in the annular groove through the connector. Preferably, when the engine is operating at high speed, the first arc-shaped guide vane rotates to coincide with the second arc-shaped guide vane, and the connecting ring, the first arc-shaped guide vane and the second arc-shaped guide vane move axially into the receiving annular groove in the turbine exhaust component.

[0006] Preferably, the number of the first arc-shaped guide vanes corresponds to the number of the second arc-shaped guide vanes; Initially, the first arc-shaped guide vane is located in the groove and forms an annulus with the second arc-shaped guide vane, and the inner wall of the second arc-shaped guide vane is attached to the outer side of the first arc-shaped guide vane.

[0007] Preferably, a first slot is provided on the periphery of the connecting ring, a C-shaped connector is engaged in the first slot, and a first electronically controlled actuator is fixedly mounted on the outside of the turbine exhaust component; The output end of the first electronically controlled actuator is hinged to the C-shaped connector and used to pull the connecting ring to rotate.

[0008] Preferably, the inner wall of the second arc-shaped guide vane is provided with an arc-shaped groove, and the outer side of the first arc-shaped guide vane slides in the arc-shaped groove by a slider; As the engine operating conditions improve, the first arc-shaped guide vane gradually overlaps with the second arc-shaped guide vane, and an exhaust gas passage is formed between the first arc-shaped guide vane and the second arc-shaped guide vane.

[0009] Preferably, a slot is provided on the periphery of the connecting ring, and a second electronically controlled actuator is fixedly mounted on the outside of the turbine exhaust component. The output end of the second electronically controlled actuator is fixedly mounted with a connecting clip that engages with the slot.

[0010] Preferably, the air guide assembly includes an annular dispersion tube fixed to the outside of the turbine exhaust component, and the annular dispersion tube communicates with a receiving annular groove inside the turbine exhaust component; The annular dispersion tube and the annular groove inside the turbine exhaust component are connected at the same point as the first arc-shaped guide vane and the second arc-shaped guide vane.

[0011] Preferably, the turbine exhaust component has an intake pipe for connecting to the automobile engine on its exterior, and an exhaust pipe on its side. The exhaust gas from a car engine enters the turbine exhaust system through the intake manifold to drive the turbine, and is then discharged through the exhaust pipe.

[0012] Preferably, the turbine exhaust component has an exhaust channel on its side, the exhaust channel is located in the inner circumference of the first arc-shaped guide vane, and a stabilizing ring is fixedly installed at the end of the second arc-shaped guide vane; When the connecting ring, the first arc-shaped guide vane, the second arc-shaped guide vane, and the stabilizing ring move axially into the annular groove for receiving turbine exhaust components, the stabilizing ring blocks the second slot and the sliding groove.

[0013] Preferably, the annular dispersion tube is connected to the air inlet tube through an air guide tube, and the air guide tube is equipped with a solenoid valve for controlling the on / off state. The engine exhaust gas in the intake pipe enters the turbine exhaust component receiving annular groove through the air guide pipe and the annular dispersion pipe, flows to both ends along the outside of the second arc-shaped guide vane, and is discharged through the exhaust channel.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a connecting ring to gradually open the first arc-shaped guide vane during engine operation, expanding the exhaust gas flow channel. As the engine operates at high speed, the first and second arc-shaped guide vanes overlap. The connecting ring, the first and second arc-shaped guide vanes move axially into the receiving annular groove within the turbine exhaust component. At this point, the exhaust gas enters the turbine exhaust component and directly contacts the turbine unit, thereby driving the turbine unit and compressor unit to operate. This process avoids the vibration caused by eddies and wakes in the exhaust gas due to the influence of the nozzle ring guide vane, as well as the phenomenon of local kinetic energy loss, while improving the efficiency of engine exhaust gas guidance. This invention improves the guidance of exhaust gas by using arc-shaped first and second arc-shaped guide vanes. The exhaust gas comes into contact with the surfaces of the first and second arc-shaped guide vanes. Unburned carbon deposits in the exhaust gas adhere to the surfaces of the first and second arc-shaped guide vanes. The surface of the first arc-shaped guide vane is in contact with the inner wall of the second arc-shaped guide vane. During the rotation of the first arc-shaped guide vane and its alignment with the inner wall of the second arc-shaped guide vane, the carbon deposits adhering to the surface of the first arc-shaped guide vane are scraped off by one end of the second arc-shaped guide vane, thereby ensuring the stability of the operation of the first arc-shaped guide vane and avoiding jamming. This invention uses a first and a second electronically controlled actuator to drive the first and second arc-shaped guide vanes into the receiving annular groove of the turbine exhaust component. Meanwhile, a stabilizing ring is attached to the side of the turbine exhaust component to block the second slot and the sliding groove. At this time, the solenoid valve on the air guide pipe opens, and part of the exhaust gas in the intake pipe enters the receiving annular groove of the turbine exhaust component through the air guide pipe and the annular dispersion pipe. It then flows along the periphery of the second arc-shaped guide vane. The high-temperature exhaust gas contacts the surface of the second arc-shaped guide vane, cleaning the carbon deposits on the surface at high temperature, thereby ensuring the stability of the second arc-shaped guide vane operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the compression mechanism and turbine assembly of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the external structure of the variable air guide assembly of the present invention; Figure 5 This is a schematic diagram of the disassembled structure of the variable air guide assembly of the present invention; Figure 6 This is a schematic diagram showing the disassembled structure of the first arc-shaped guide vane and the second arc-shaped guide vane of the present invention; Figure 7 This is a schematic diagram showing the disassembled structure of the C-shaped connector, connecting clip, and connecting ring of the present invention; Figure 8 This is a schematic diagram of the motion structure of the first arc-shaped guide vane and the second arc-shaped guide vane of the present invention; Figure 9 This is a schematic diagram of the mating structure of the air guide assembly and the turbine exhaust component of the present invention; Figure 10 This is a schematic diagram of the structure of the first arc-shaped guide vane, the second arc-shaped guide vane, and the turbine exhaust component of the present invention. Figure 11 This is a schematic diagram of the structure of the first arc-shaped guide vane, the second arc-shaped guide vane, and the exhaust channel of the present invention.

[0016] In the diagram: 1. Compression mechanism; 3. Air guide assembly; 31. Air guide pipe; 32. Annular dispersion pipe; 33. Exhaust channel; 4. Variable air guide assembly; 41. Connecting ring; 42. Groove; 43. First slot; 44. C-shaped connector; 45. Connecting clip; 46. First electronic actuator; 47. Second electronic actuator; 411. First arc-shaped guide vane; 412. Slider; 413. Stabilizing ring; 414. Second arc-shaped guide vane; 415. Arc-shaped groove; 416. Connector; 5. Turbine assembly; 51. Turbine exhaust component; 52. Second slot; 53. Groove; 54. Exhaust pipe; 55. Intake pipe. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 11 As shown, the present invention provides an opening adjustment assembly for an automotive nozzle ring, including a compression mechanism 1, and further comprising: Turbine assembly 5, which is fixedly mounted on compression mechanism 1; Variable air guide assembly 4 is disposed inside the turbine assembly 5; Among them, the turbine assembly 5 is fixedly mounted on the compression mechanism 1, the turbine exhaust component 51 is provided with a receiving annular groove, and the side of the turbine exhaust component 51 is provided with a second slot 52 and a sliding groove 53 that are connected to the receiving annular groove. The variable air guide assembly 4 includes a connecting ring 41 placed in a receiving annular groove, and a first arc-shaped guide vane 411 passing through the slide groove 53 is fixedly mounted on the side of the connecting ring 41 at equal intervals. The side of the connecting ring 41 is provided with an annular groove, and the second arc-shaped guide vane 414 is provided in the second slot 52. The second arc-shaped guide vane 414 slides in the annular groove through the connector 416. When the engine is operating at high speed, the first arc-shaped guide vane 411 rotates to coincide with the second arc-shaped guide vane 414, and the connecting ring 41, the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414 move axially into the receiving annular groove in the turbine exhaust component 51.

[0019] During engine operation, the connecting ring 41 drives the first arc-shaped guide vane 411 to gradually open, expanding the exhaust gas flow channel. When the engine is at high speed, the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414 overlap. The connecting ring 41, the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414 move axially into the receiving annular groove in the turbine exhaust component 51. At this time, the exhaust gas enters the turbine exhaust component 51 and directly contacts the turbine unit, thereby driving the turbine unit and the compressor unit to work. In this process, the vibration caused by vortices and wakes caused by the nozzle ring guide vane is avoided, as well as the phenomenon of local kinetic energy loss. At the same time, the efficiency of engine exhaust gas guidance is improved.

[0020] like Figures 4-8 As shown, the number of the first arc-shaped guide vane 411 corresponds to the number of the second arc-shaped guide vane 414; Initially, the first arc-shaped guide vane 411 is located in the groove 53 and forms an annulus with the second arc-shaped guide vane 414. The inner wall of the second arc-shaped guide vane 414 is attached to the outer side of the first arc-shaped guide vane 411. A first slot 43 is provided on the periphery of the connecting ring 41, and a C-shaped connector 44 is engaged in the first slot 43. A first electronically controlled actuator 46 is fixedly mounted on the outside of the turbine exhaust component 51. The output end of the first electronically controlled actuator 46 is hinged to the C-shaped connector 44 and is used to pull the connecting ring 41 to rotate. The inner wall of the second arc-shaped guide vane 414 is provided with an arc-shaped groove 415, and the outer side of the first arc-shaped guide vane 411 slides in the arc-shaped groove 415 through the slider 412. As the engine operating conditions improve, the first arc-shaped guide vane 411 gradually overlaps with the second arc-shaped guide vane 414, forming an exhaust gas passage between the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414.

[0021] The control unit detects the engine's operating condition and controls the first electronically controlled actuator 46 to cooperate with the first slot 43 on the outside of the connecting ring 41 through the C-shaped connector 44 to pull the connecting ring 41 and the first arc-shaped guide vane 411 to rotate. The first arc-shaped guide vane 411 gradually overlaps with the second arc-shaped guide vane 414, and an engine exhaust gas flow channel is formed between the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414. The exhaust gas flow channel drives the turbine and compressor to work, thereby achieving the purpose of boosting.

[0022] Meanwhile, since both the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414 are arc-shaped, the guidance of the exhaust gas is improved. The exhaust gas comes into contact with the surfaces of the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414. Unburned carbon deposits in the exhaust gas adhere to the surfaces of the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414. The surface of the first arc-shaped guide vane 411 is in contact with the inner wall of the second arc-shaped guide vane 414. During the rotation of the first arc-shaped guide vane 411 and its overlap with the inner wall of the second arc-shaped guide vane 414, the carbon deposits adhering to the surface of the first arc-shaped guide vane 411 are scraped off by one end of the second arc-shaped guide vane 414, thereby ensuring the stability of the operation of the first arc-shaped guide vane 411 and avoiding jamming.

[0023] like Figures 5-7 As shown, a slot 42 is provided on the periphery of the connecting ring 41, and a second electronic actuator 47 is fixedly mounted on the outside of the turbine exhaust component 51. A connecting clip 45 that engages with the slot 42 is fixedly mounted on the output end of the second electronic actuator 47.

[0024] When the car engine is operating at high speed, the control unit, based on the engine's operating status, controls the first electronically controlled actuator 46 to pull the connecting ring 41 and the first arc-shaped guide vane 411 to rotate and overlap with the first arc-shaped guide vane 411 via the C-shaped connector 44. During the rotation, the connecting ring 41 slides along the connecting clip 45, ensuring that the connecting clip 45 and the slot 42 are always engaged. When the engine is operating at high speed, the control unit controls the second electronically controlled actuator 47 to pull the connecting ring 41, the first arc-shaped guide vane 411, and the second arc-shaped guide vane 414 along the vortex... The turbine moves axially, causing it to be housed in the annular groove inside the turbine exhaust component 51. As the connecting ring 41 moves axially along the turbine, it slides along the C-shaped connector 44 through the first slot 43, ensuring that the C-shaped connector 44 is always engaged in the first slot 43, thus ensuring that the connecting ring 41 can work normally. At the same time, as the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414 move axially along the turbine, the carbon deposits attached to the inner wall of the first arc-shaped guide vane 411 and the outer wall of the second arc-shaped guide vane 414 are scraped off through the second slot 52 and the sliding groove 53.

[0025] like Figures 8-11 As shown, the air guide assembly 3 includes an annular dispersion pipe 32 fixed to the outside of the turbine exhaust component 51, and the annular dispersion pipe 32 is connected to the receiving annular groove inside the turbine exhaust component 51. The annular dispersion tube 32 and the annular groove inside the turbine exhaust component 51 are connected to the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414. The turbine exhaust component 51 has an intake pipe 55 for connecting to the automobile engine on its exterior, and an exhaust pipe 54 on its side. The exhaust gas from the car engine enters the turbine exhaust component 51 through the intake pipe 55 to drive the turbine, and is discharged through the exhaust pipe 54. The turbine exhaust component 51 has an exhaust channel 33 on its side, which is located inside the first arc-shaped guide vane 411. The end of the second arc-shaped guide vane 414 is fixed with a stabilizing ring 413. When the connecting ring 41, the first arc-shaped guide vane 411, the second arc-shaped guide vane 414 and the stabilizing ring 413 move axially to the turbine exhaust component 51 and are housed in the annular groove, the stabilizing ring 413 blocks the second slot 52 and the sliding groove 53. The annular dispersion tube 32 is connected to the air inlet tube 55 through the air guide tube 31, and the air guide tube 31 is equipped with a solenoid valve to control the on / off state. Engine exhaust gas in the intake pipe 55 enters the turbine exhaust component 51 and is collected in the annular groove through the air guide pipe 31 and the annular dispersion pipe 32. It flows to both ends along the outside of the second arc-shaped guide vane 414 and is discharged through the exhaust channel 33.

[0026] When the engine is operating at high speed, the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414 are driven by the first electronic control actuator 46 and the second electronic control actuator 47 to move into the receiving annular groove of the turbine exhaust component 51. Meanwhile, the stabilizing ring 413 is attached to the side of the turbine exhaust component 51 to block the second slot 52 and the sliding groove 53. At this time, the solenoid valve on the air guide pipe 31 is opened, and part of the exhaust gas in the intake pipe 55 enters the receiving annular groove of the turbine exhaust component 51 through the air guide pipe 31 and the annular dispersion pipe 32, and flows along the periphery of the second arc-shaped guide vane 414. The high-temperature exhaust gas comes into contact with the surface of the second arc-shaped guide vane 414, and the carbon deposits attached to the surface are cleaned at high temperature. The cleaned carbon deposits are discharged from the exhaust channel 33 with the exhaust gas, thereby ensuring the stability of the operation of the second arc-shaped guide vane 414.

[0027] Working principle and usage process of this invention: The control unit detects the engine's operating condition and controls the first electronically controlled actuator 46 to cooperate with the first slot 43 on the outside of the connecting ring 41 through the C-shaped connector 44 to pull the connecting ring 41 and the first arc-shaped guide vane 411 to rotate. The first arc-shaped guide vane 411 gradually overlaps with the second arc-shaped guide vane 414, and an engine exhaust gas flow channel is formed between the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414. The exhaust gas flow channel drives the turbine and compressor to work, thereby achieving the purpose of boosting. Meanwhile, since both the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414 are arc-shaped, the guidance of the exhaust gas is improved. The exhaust gas comes into contact with the surfaces of the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414. The unburned carbon deposits in the exhaust gas adhere to the surfaces of the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414. The surface of the first arc-shaped guide vane 411 is in contact with the inner wall of the second arc-shaped guide vane 414. During the rotation of the first arc-shaped guide vane 411 and its overlap with the inner wall of the second arc-shaped guide vane 414, the carbon deposits adhering to the surface of the first arc-shaped guide vane 411 are scraped off by one end of the second arc-shaped guide vane 414. When the car engine is operating at high speed, the control unit controls the first electronically controlled actuator 46 to pull the connecting ring 41 and the first arc-shaped guide vane 411 to rotate and overlap with the first arc-shaped guide vane 411 through the C-shaped connector 44. During the rotation of the connecting ring 41, it slides along the connecting clip 45 to ensure that the connecting clip 45 and the slot 42 are always in the engaged state. When the engine is operating at high speed, the control unit controls the second electronically controlled actuator 47 to pull the connecting ring 41, the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414 to move along the turbine axis, so that they move into the annular groove inside the turbine exhaust part 51. During this process, the exhaust gas is prevented from being affected by the nozzle ring guide vane, resulting in vortex and wake vibration, as well as local kinetic energy loss. At the same time, the efficiency of the engine exhaust gas diversion is improved. When the connecting ring 41 moves along the turbine axis, it slides along the C-shaped connector 44 through the first slot 43, ensuring that the C-shaped connector 44 is always engaged in the first slot 43, ensuring that the connecting ring 41 can work normally. At the same time, during the movement of the first arc-shaped guide vane 411 and the second arc-shaped guide vane 414 along the turbine axis, the carbon deposits attached to the inner wall of the first arc-shaped guide vane 411 and the outer wall of the second arc-shaped guide vane 414 are scraped off through the second slot 52 and the sliding groove 53.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An opening adjustment assembly for an automotive nozzle ring, comprising a compression mechanism (1), characterized in that, Also includes: Turbine assembly (5), which is fixedly mounted on the compression mechanism (1); A variable air guide assembly (4) is disposed inside the turbine assembly (5); The turbine assembly (5) is fixedly mounted on the turbine exhaust component (51) of the compression mechanism (1). The turbine exhaust component (51) has a receiving annular groove, and the side of the turbine exhaust component (51) has a second slot (52) and a sliding groove (53) that are connected to the receiving annular groove. The variable air guide assembly (4) includes a connecting ring (41) placed in a receiving annular groove, and the side of the connecting ring (41) is fixed with a first arc-shaped guide vane (411) passing through the slide groove (53). The side of the connecting ring (41) is provided with an annular groove, and the second slot (52) is provided with a second arc-shaped guide vane (414). The second arc-shaped guide vane (414) slides in the annular groove through the connector (416).

2. The opening adjustment assembly for an automotive nozzle ring according to claim 1, characterized in that: When the engine is in high-speed operation, the first arc-shaped guide vane (411) rotates to coincide with the second arc-shaped guide vane (414), and the connecting ring (41), the first arc-shaped guide vane (411) and the second arc-shaped guide vane (414) move axially into the receiving annular groove in the turbine exhaust component (51).

3. The opening adjustment assembly for an automotive nozzle ring according to claim 1, characterized in that: The number of the first arc-shaped guide vane (411) corresponds to the number of the second arc-shaped guide vane (414); Initially, the first arc-shaped guide vane (411) is located in the groove (53) and forms an annulus with the second arc-shaped guide vane (414), and the inner wall of the second arc-shaped guide vane (414) is attached to the outside of the first arc-shaped guide vane (411).

4. The opening adjustment assembly for an automotive nozzle ring according to claim 2, characterized in that: The outer periphery of the connecting ring (41) is provided with a first slot (43), and a C-shaped connector (44) is engaged in the first slot (43). The turbine exhaust component (51) is externally fixed with a first electronically controlled actuator (46). The output end of the first electronically controlled actuator (46) is hinged to the C-shaped connector (44) to pull the connecting ring (41) to rotate.

5. The opening adjustment assembly for an automotive nozzle ring according to claim 1, characterized in that: The inner wall of the second arc-shaped guide vane (414) is provided with an arc-shaped groove (415), and the outer side of the first arc-shaped guide vane (411) slides in the arc-shaped groove (415) through a slider (412); As the engine operating conditions improve, the first arc-shaped guide vane (411) gradually overlaps with the second arc-shaped guide vane (414), and an exhaust gas passage is formed between the first arc-shaped guide vane (411) and the second arc-shaped guide vane (414).

6. The opening adjustment assembly for an automotive nozzle ring according to claim 5, characterized in that: The connecting ring (41) has a slot (42) on its periphery. The turbine exhaust component (51) is fixedly fitted with a second electronic actuator (47). The output end of the second electronic actuator (47) is fixedly fitted with a connecting clip (45) that engages with the slot (42).

7. The opening adjustment assembly for an automotive nozzle ring according to claim 1, characterized in that: The air guide assembly (3) includes an annular dispersion tube (32) fixed to the outside of the turbine exhaust component (51), and the annular dispersion tube (32) is connected to the receiving annular groove inside the turbine exhaust component (51). The annular dispersion tube (32) and the annular groove inside the turbine exhaust component (51) correspond to the first arc-shaped guide vane (411) and the second arc-shaped guide vane (414).

8. The opening adjustment assembly for an automotive nozzle ring according to claim 7, characterized in that: The turbine exhaust component (51) is provided with an intake pipe (55) for connecting to the automobile engine on its exterior, and an exhaust pipe (54) is provided on the side of the turbine exhaust component (51). The exhaust gas from the car engine enters the turbine exhaust component (51) through the intake pipe (55) to drive the turbine to work, and is discharged through the exhaust pipe (54).

9. The opening adjustment assembly for an automotive nozzle ring according to claim 8, characterized in that: The turbine exhaust component (51) has an exhaust channel (33) on its side. The exhaust channel (33) is located in the inner circumference of the first arc-shaped guide vane (411). The end of the second arc-shaped guide vane (414) is fixed with a stabilizing ring (413). When the connecting ring (41), the first arc-shaped guide vane (411), the second arc-shaped guide vane (414) and the stabilizing ring (413) move axially into the annular groove of the turbine exhaust component (51), the stabilizing ring (413) blocks the second slot (52) and the sliding groove (53).

10. The opening adjustment assembly for an automotive nozzle ring according to claim 9, characterized in that: The annular dispersion tube (32) is connected to the air inlet tube (55) through the air guide tube (31), and the air guide tube (31) is equipped with a solenoid valve for controlling the on / off state. The engine exhaust gas in the intake pipe (55) enters the turbine exhaust component (51) and is collected in the annular groove through the air guide pipe (31) and the annular dispersion pipe (32). It flows to both ends along the outside of the second arc-shaped guide vane (414) and is discharged through the exhaust channel (33).

Images