CN220890271U - Turbocharger with improved heat insulation structure - Google Patents
Turbocharger with improved heat insulation structure Download PDFInfo
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- CN220890271U CN220890271U CN202322937284.4U CN202322937284U CN220890271U CN 220890271 U CN220890271 U CN 220890271U CN 202322937284 U CN202322937284 U CN 202322937284U CN 220890271 U CN220890271 U CN 220890271U
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- heat insulation
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- assembly
- inclined section
- turbocharger
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- 238000009413 insulation Methods 0.000 title claims abstract description 102
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008093 supporting effect Effects 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model relates to a turbocharger with an improved heat insulation structure, which comprises a compressor component, a turbine component and a central shell arranged between the compressor component and the turbine component, wherein a shafting component is arranged in the central shell, and two ends of the shafting component are respectively provided with a compressor impeller and a turbine impeller; a nozzle ring assembly is arranged between the central housing and the turbine assembly, the nozzle ring assembly comprises a nozzle ring, a heat insulation assembly is arranged between the nozzle ring and the central housing, and the heat insulation assembly comprises a first heat insulation disc and a second heat insulation disc which are concentrically arranged. The turbocharger provided by the utility model has the advantages that the unique double-layer heat insulation disc structure is adopted, the heat insulation effect is good, and the elastic support function is strong through the cooperation with the assembly structure.
Description
Technical Field
The utility model belongs to the technical field of turbochargers, and particularly relates to a turbocharger with an improved heat insulation structure.
Background
The turbine in the turbine box is driven by the energy such as heat energy, kinetic energy, pressure energy and the like in the exhaust gas discharged during the working of the engine, the turbine drives the coaxial impeller to form a rotor assembly, and the impeller compresses the air sent by the air filter pipeline, so that the air enters the combustion chamber of the engine after being pressurized. As an important device applied to automobiles, reliability, running stability, and the like of a turbocharger are required to be focused.
In turbochargers having an adjustable vane arrangement, the adjustable vanes are rotatably mounted to a nozzle ring that is mounted directly or indirectly in the center housing, and in order to reduce heat transfer, a thermal shield is also required between the nozzle ring and the center housing. In the prior art, most of heat insulation sheet structures are single-layer structures, the heat insulation sheet structures are simple in structure and poor in elasticity and supporting capacity, and the heat insulation structure is further improved and designed according to the problems.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model provides the turbocharger with the improved heat insulation structure, which adopts a unique double-layer heat insulation disc structure, has good heat insulation effect, and has strong elastic supporting function through the cooperation with an assembly structure.
The utility model is solved by the following technical scheme.
The turbocharger comprises a compressor component, a turbine component and a central shell arranged between the compressor component and the turbine component, wherein a shafting component is arranged in the central shell, and two ends of the shafting component are respectively provided with a compressor impeller and a turbine impeller; a nozzle ring assembly is arranged between the central shell and the turbine assembly, the nozzle ring assembly comprises a nozzle ring, a heat insulation assembly is arranged between the nozzle ring and the central shell, the heat insulation assembly comprises a first heat insulation disc and a second heat insulation disc which are concentrically arranged, the first heat insulation disc is positioned at one side facing the central shell, and the second heat insulation disc is positioned at one side facing the turbine wheel; the outer edges of the first heat insulation plate and the second heat insulation plate are propped against each other, the inner edges of the first heat insulation plate and the second heat insulation plate are separated, and the diameter of a circle formed by the inner edges of the first heat insulation plate is larger than that of a circle formed by the inner edges of the second heat insulation plate; the inner edges of the first heat insulation disc and the second heat insulation disc are respectively abutted against the first step and the second step on the central shell, and the outer edge of the second heat insulation disc is abutted against the nozzle ring.
In the turbocharger, a double-layer heat insulation disc structure consisting of the first heat insulation disc and the second heat insulation disc is adopted, the heat insulation effect is good, the assembly is convenient, the stable assembly can be realized by abutting against the first step, the second step and the nozzle ring, the turbocharger has elasticity after the assembly, the pressure of high-pressure gas at the turbine end can be born, and the capability of adapting to a high-pressure working state is stronger.
In a preferred embodiment, an inner ring boss protruding inwards is arranged on the inner surface of the nozzle ring, a concave cavity is arranged on the inner ring boss, and the outer edge of the second heat insulation plate is arranged in the concave cavity. The structure makes the assembly of the heat insulation assembly more convenient, and is stable after assembly and not easy to deviate from.
In a preferred embodiment, a gap is formed between the inner surface of the concave cavity in the radial direction and the outer surface of the second heat insulation plate in the radial direction, and the gap can provide a space required by the extrusion deformation of the second heat insulation plate without being blocked, so that the whole assembly structure is more stable.
In a preferred embodiment, the first heat insulation plate is sequentially provided with an outer edge section, a first inclined section, a second inclined section and an inner edge section from outside to inside; the outer edge section and the inner edge section are provided with surfaces parallel to the radial direction of the rotating shaft, the first inclined section and the second inclined section incline towards the direction of the central shell, and the inclination of the first inclined section is larger than that of the second inclined section; and the length of the second inclined section is 6-8 times the length of the first inclined section. The structure of the first heat insulation plate with the unique structure is convenient to process, and the elastic supporting effect is better after assembly.
In a preferred embodiment, the second heat insulating plate is provided with a flat section, an outer inclined section and an inner inclined section in sequence from outside to inside, the flat section is parallel to the radial direction of the rotating shaft, the outer inclined section is inclined towards the direction of the turbine wheel, the inner inclined section is inclined towards the direction of the central shell, and a convex structure towards the direction of the turbine wheel is formed between the outer inclined section and the inner inclined section. The second heat insulation plate with the unique structure is high in strength, can bear larger elastic pressure, and is better in elastic supporting effect after assembly.
In a preferred embodiment, the length of the inner inclined section is 5-7 times of that of the outer inclined section, so that the stability of the whole assembly structure is ensured, and the heat insulation effect is good.
In a preferred embodiment, the length of the flat section is 2-3 times of that of the outer inclined section, so that the nozzle is convenient to assemble, and has large contact area and high stability after being propped against the nozzle ring.
In a preferred embodiment, one surface of the outer rim section abuts against a surface of the flat section to effect a contact press fit.
In a preferred embodiment, the inclination of the inner inclined section is smaller than the inclination of the second inclined section, ensuring a sufficient elastic deformation space.
In a preferred embodiment, the diameter of the outer edge of the first heat insulation plate is smaller than that of the outer edge of the second heat insulation plate, so that the outer edge of the first heat insulation plate cannot interfere with other assembly structures after assembly.
Compared with the prior art, the utility model has the following beneficial effects: the turbocharger with the improved heat insulation structure adopts a unique double-layer heat insulation disc structure, has good heat insulation effect, and has strong elastic support function through the cooperation with an assembly structure.
Drawings
Fig. 1 is a schematic view of a turbocharger in the present application.
Fig. 2 is a cross-sectional view of the turbocharger in the present application.
Fig. 3 is a cross-sectional view of a center housing and its upper structure of the turbocharger of the present application.
Fig. 4 is an enlarged view of area a in fig. 3.
Fig. 5 is a perspective view of an insulation assembly according to the present application.
Fig. 6 is a side view of an insulation structure in accordance with the present application.
Fig. 7 is a cross-sectional view of an insulation structure in accordance with the present application.
Fig. 8 is an enlarged view of region B in fig. 7.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
In the following embodiments, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout, and the embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
In the description of the present utility model, it is to be understood that the terms: the directions of the center, the longitudinal, the lateral, the length, the width, the thickness, the upper, the lower, the front, the rear, the left, the right, the vertical, the horizontal, the top, the bottom, the inner, the outer, the clockwise, the counterclockwise, etc. indicate the directions or the positional relationship based on the directions or the positional relationship shown in the drawings, are merely for convenience of description and simplification of the description, and therefore, should not be construed as limiting the present utility model. Furthermore, the term: first, second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of features shown. In the description of the present utility model, unless explicitly specified and defined otherwise, the terms: mounting, connecting, etc. should be construed broadly and the specific meaning of the terms in the present application will be understood by those skilled in the art in view of the specific circumstances.
Referring to fig. 1 to 8, a turbocharger with an improved heat insulation structure according to the present application includes a compressor assembly 1, a turbine assembly 3, and a center housing 2 disposed between the compressor assembly 1 and the turbine assembly 3, wherein a shafting assembly 6 is disposed in the center housing 2, and compressor impellers 61 and turbine impellers 62 are disposed at both ends of the shafting assembly 6, respectively; a nozzle ring assembly is arranged between the central housing 2 and the turbine assembly 3, the nozzle ring assembly comprises a nozzle ring 4, an insulation assembly is arranged between the nozzle ring 4 and the central housing 2, the insulation assembly comprises a first insulation disc 51 and a second insulation disc 52 which are concentrically arranged, the first insulation disc 51 is positioned at one side facing the central housing 2, and the second insulation disc 52 is positioned at one side facing the turbine wheel 62; the outer edges of the first heat insulation plate 51 and the second heat insulation plate 52 are propped against each other, the inner edges of the first heat insulation plate 51 and the second heat insulation plate 52 are separated, and the diameter of a circle formed by the inner edges of the first heat insulation plate 51 is larger than that of a circle formed by the inner edges of the second heat insulation plate 52; the inner edges of the first and second insulating discs 51, 52 respectively abut against the first and second steps 21, 22 on the center housing 2, and the outer edges of the second insulating discs 52 abut against the nozzle ring 4.
Specifically, as can be seen from fig. 4, an inner ring boss 41 protruding inwards is provided on the inner surface of the nozzle ring 4, a cavity 42 is provided on the inner ring boss 41, and the outer edge of the second heat insulation plate 52 is placed in the cavity 42. The structure makes the assembly of the heat insulation assembly more convenient, and is stable after assembly and not easy to deviate from. And, the inner surface of the cavity 42 in the radial direction is spaced from the outer surface of the second insulating plate 52 in the radial direction, and the space required for the extrusion deformation of the second insulating plate 52 can be provided by the gap, so that the whole assembly structure is more stable.
As can be seen from fig. 8, in the present application, the first heat insulation plate 51 is sequentially provided with an outer edge section 511, a first inclined section 512, a second inclined section 513 and an inner edge section 514 from outside to inside; the outer edge section 511 and the inner edge section 514 have surfaces parallel to the radial direction of the rotation shaft, the first inclined section 512 and the second inclined section 513 are inclined toward the center housing 2, and the inclination of the first inclined section 512 is larger than the inclination of the second inclined section 513; and the length of the second inclined section 513 is 6-8 times the length of the first inclined section 512. The structure of the first heat insulation plate 51 with the unique structure is convenient to process, and the elastic supporting effect is better after assembly.
Further, as can be seen from fig. 8, in the present application, the second insulating disk 52 is formed of a flat section 521, an outer inclined section 522, and an inner inclined section 523 in this order from the outside to the inside, the flat section 521 is parallel to the radial direction of the rotation shaft, the outer inclined section 522 is inclined toward the turbine wheel 62, the inner inclined section 523 is inclined toward the center housing 2, and a convex structure is formed between the outer inclined section 522 and the inner inclined section 523 toward the turbine wheel 62. The second insulating disc 52 with the unique structure has high strength, can bear larger elastic pressure, and has better elastic supporting effect after assembly.
In addition, in the application, the length of the inner inclined section 523 is 5-7 times of that of the outer inclined section 522, so that the stability of the whole assembly structure is ensured, and the heat insulation effect is good. The length of the flat section 521 is 2-3 times of the length of the outer inclined section 522, the assembly is convenient, the contact area is large after the flat section 521 is propped against the nozzle ring 4, and the stability is high. One surface of the outer rim section 511 abuts against the surface of the flat section 521 to achieve a contact press fit.
Further, in the present application, the inclination of the inner inclined section 523 is smaller than that of the second inclined section 513, ensuring a sufficient elastic deformation space. The diameter of the outer edge of the first heat insulation plate 51 is smaller than that of the outer edge of the second heat insulation plate 52, so that the outer edge of the first heat insulation plate 51 cannot interfere with other assembly structures after assembly.
As can be seen from the above description, in the turbocharger according to the present application, the double-layer heat-insulating disc structure composed of the first heat-insulating disc 51 and the second heat-insulating disc 52 is adopted, so that the heat-insulating effect is good, the assembly is convenient, the stable assembly can be realized by abutting against the first step 21, the second step 22 and the nozzle ring 4, the turbocharger has elasticity after the assembly, can bear the pressure of the high-pressure gas at the turbine end, and has stronger capability of adapting to the high-pressure working state.
In the above, the turbocharger with the improved heat insulation structure provided by the utility model adopts a unique double-layer heat insulation disc structure, has a good heat insulation effect, and has a strong elastic supporting function through the cooperation with an assembly structure.
The scope of the present utility model includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the utility model.
Claims (10)
1. The turbocharger with the improved heat insulation structure comprises a compressor assembly (1), a turbine assembly (3) and a central shell (2) arranged between the compressor assembly (1) and the turbine assembly (3), wherein a shafting assembly (6) is arranged in the central shell (2), and two ends of the shafting assembly (6) are respectively provided with a compressor impeller (61) and a turbine impeller (62);
A nozzle ring assembly is arranged between the central housing (2) and the turbine assembly (3), the nozzle ring assembly comprises a nozzle ring (4), and a heat insulation assembly is arranged between the nozzle ring (4) and the central housing (2), and the turbine assembly is characterized in that:
The heat insulation assembly comprises a first heat insulation plate (51) and a second heat insulation plate (52) which are concentrically arranged, wherein the first heat insulation plate (51) is positioned on one side facing the central shell (2), and the second heat insulation plate (52) is positioned on one side facing the turbine wheel (62);
The outer edges of the first heat insulation plate (51) and the second heat insulation plate (52) are propped against each other, the inner edges of the first heat insulation plate (51) and the second heat insulation plate (52) are separated, and the diameter of a circle formed by the inner edges of the first heat insulation plate (51) is larger than the diameter of a circle formed by the inner edges of the second heat insulation plate (52);
The inner edges of the first heat insulation plate (51) and the second heat insulation plate (52) respectively prop against a first step (21) and a second step (22) on the central shell (2),
The outer edge of the second heat insulation disc (52) is abutted against the nozzle ring (4).
2. Turbocharger with improved heat insulation structure according to claim 1, characterized in that the inner surface of the nozzle ring (4) is provided with an inwardly protruding inner ring boss (41), the inner ring boss (41) is provided with a cavity (42), and the outer edge of the second heat insulation disc (52) is placed in the cavity (42).
3. The turbocharger with improved insulation structure of claim 2, wherein the radially inner surface of the cavity (42) is spaced from the radially outer surface of the second insulating disc (52) by a gap.
4. The turbocharger with improved heat insulating structure according to claim 1, wherein the first heat insulating plate (51) is an outer edge section (511), a first inclined section (512), a second inclined section (513), an inner edge section (514) in this order from the outside to the inside;
The outer edge section (511) and the inner edge section (514) are provided with surfaces parallel to the radial direction of the rotating shaft, the first inclined section (512) and the second inclined section (513) are inclined towards the direction of the central shell (2), and the inclination of the first inclined section (512) is larger than that of the second inclined section (513);
And the second inclined section (513) has a length 6-8 times the length of the first inclined section (512).
5. The turbocharger with improved heat insulating structure according to claim 4, wherein the second heat insulating disk (52) is a flat section (521), an outer inclined section (522), an inner inclined section (523) in this order from outside to inside, the flat section (521) being parallel to the radial direction of the rotation shaft, the outer inclined section (522) being inclined toward the direction of the turbine wheel (62), the inner inclined section (523) being inclined toward the direction of the center housing (2), and a convex structure being formed between the outer inclined section (522) and the inner inclined section (523) toward the direction of the turbine wheel (62).
6. The turbocharger with improved insulation structure of claim 5, wherein the length of the inner diagonal section (523) is 5-7 times the length of the outer diagonal section (522).
7. The turbocharger with improved insulation structure of claim 6, wherein the flat section (521) has a length that is 2-3 times the length of the outer inclined section (522).
8. The turbocharger with improved insulation as recited in claim 7, wherein one surface of the outer rim section (511) abuts against a surface of the flat section (521).
9. The turbocharger with improved insulation structure of claim 8, wherein the inclination of the inner inclined section (523) is smaller than the inclination of the second inclined section (513).
10. The turbocharger with improved insulation structure of claim 9, wherein the diameter of the outer edge of the first insulation disc (51) is smaller than the diameter of the outer edge of the second insulation disc (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322937284.4U CN220890271U (en) | 2023-10-31 | 2023-10-31 | Turbocharger with improved heat insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322937284.4U CN220890271U (en) | 2023-10-31 | 2023-10-31 | Turbocharger with improved heat insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220890271U true CN220890271U (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322937284.4U Active CN220890271U (en) | 2023-10-31 | 2023-10-31 | Turbocharger with improved heat insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220890271U (en) |
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2023
- 2023-10-31 CN CN202322937284.4U patent/CN220890271U/en active Active
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