CN215109056U - A multi-claw type elastic support for 1050 ℃ supercharger nozzle ring - Google Patents

Abstract

The utility model discloses a multi-claw elastic support of a 1050 ℃ resistant supercharger nozzle ring, which comprises a VGT component, a toggle disc and a volute assembly, wherein the toggle disc is coaxially arranged with the mounting disc, and the volute assembly comprises a connecting end; the connecting end is connected with an intermediate body, a connecting bulge is arranged at one end of the intermediate body, which is connected with the mounting disc, a supporting piece is sleeved on the connecting bulge and comprises a supporting ring sleeved on the connecting bulge, a plurality of elastic pieces are distributed at one end of the supporting ring along the circumference, a V-shape is formed between each elastic piece and the side surface of the supporting ring, and one end of each elastic piece is abutted against the mounting disc; increase support piece in the booster, strengthen VGT subassembly axial elastic support, variable cross section booster assembly accomplishes the back, and many claw type elastic support piece can be by elastic compression, and the size of compression volume satisfies VGT subassembly axial and does not have the rocking, reduces the probability of failure.

Description

Multi-claw elastic support of 1050 ℃ resistant supercharger nozzle ring

Technical Field

The utility model belongs to the technical field of the booster and specifically relates to a many claw type elastic support piece of resistant 1050 ℃ booster nozzle cascade.

Background

With the development of technology, the requirements of people for automobile engines are more and more demanding, and the automobile engines not only have strong power, but also have extremely high efficiency and sufficiently clean emission. This requires the engine to reach its most efficient operating state under various operating conditions, and therefore the requirement for the intake air amount in each operating state of the engine must be satisfied. This requires that the various components of the engine be "variable" to meet the conditions under different operating conditions. Such as variable valve timing/lift technology, which is well known to those skilled in the art, as is variable intake manifold technology. There are also VGT variable area turbocharging techniques common on diesel engines.

In order to solve turbo lag and ensure that a turbocharged engine can ensure good supercharging effect at high and low rotating speeds, variable Geometry turbocharger (vgt) or variable Geometry turbocharger (VNT) technology is developed. In the field of diesel engines, the VGT variable-section turbocharging technology has already been widely applied. Because the exhaust temperature of a gasoline engine is far higher than that of a diesel engine and reaches about 1000 ℃ (about 600 ℃) and the hardware material used by the VGT is difficult to bear the high-temperature environment, the technology cannot be applied to the gasoline engine in time. In recent years, the bogehuna and keshift union have overcome this difficulty, and have successfully developed the first gasoline engine equipped with a variable-section turbocharger by using a high-temperature resistant aircraft material technology, which is called vtg (variable Turbine geometry) variable Turbine blade technology by the keshift union.

The exhaust temperature requirement of the variable-section turbocharger is higher, the material requirement of the heat shield between the nozzle ring and the intermediate body is higher, the prior art is difficult to find a scheme with the advantages, and the axial elastic support and the stability of the VGT component are weak.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract of the specification and the title of the application may be somewhat simplified or omitted to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplification or omission may not be used to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems occurring in the prior art.

Therefore, the utility model aims to solve the technical problem that variable cross section turbo charger's row's temperature requirement is higher and higher, and the material that the heat exchanger between nozzle ring and midbody required also is higher and higher, and hardly finds the scheme that possesses this kind of advantage among the prior art, and VGT subassembly axial elastic support and stability are more weak.

In order to solve the technical problem, the utility model provides a following technical scheme: a multi-claw type elastic support of a 1050 ℃ resistant supercharger nozzle ring comprises a VGT component, a connecting rod, a driving shaft and a driving shaft, wherein the VGT component comprises a mounting disc, a toggle disc and a volute assembly, the toggle disc is coaxially mounted with the mounting disc, and the volute assembly comprises a connecting end; the connecting end is connected with an intermediate body, a V-shaped sealing ring A is arranged between the connecting end and the intermediate body, a connecting bulge is arranged at one end of the intermediate body connected with the mounting disc, a supporting piece is sleeved on the connecting bulge and comprises a supporting ring sleeved on the connecting bulge, a plurality of elastic pieces are distributed at one end of the supporting ring along the circumference, a V shape is formed between each elastic piece and the side surface of the supporting ring, and one end of each elastic piece is abutted against the mounting disc; the support ring is internally provided with a limiting boss, the connecting bulge is axially provided with a limiting groove, and the limiting boss is embedded into the limiting groove.

As a preferred scheme of the many claw type elastic support of resistant 1050 ℃ booster nozzle cascade, wherein: the volute assembly further comprises a positioning boss positioned on the inner side of the connecting end and an installation boss positioned inside the volute assembly, the installation plate is positioned in the positioning boss, the poking plate is positioned on one side of the positioning boss, and the volute assembly is integrally formed.

As a preferred scheme of the many claw type elastic support of resistant 1050 ℃ booster nozzle cascade, wherein: the installation boss with the mounting disc is coaxial to be set up, the installation boss with evenly be provided with a plurality of blade along the circumference between the mounting disc, the blade with clearance fit between the installation boss.

As a preferred scheme of the many claw type elastic support of resistant 1050 ℃ booster nozzle cascade, wherein: the blade is provided with a blade shaft, and the blade shaft penetrates through the mounting disc.

As a preferred scheme of the many claw type elastic support of resistant 1050 ℃ booster nozzle cascade, wherein: a shifting fork is fixedly connected to one end, penetrating through the mounting disc, of the blade shaft, a limiting boss is arranged at one end, far away from the blade shaft, of the shifting fork, a plurality of shifting grooves are uniformly formed in the shifting disc along the circumference, and the limiting boss is embedded into the shifting grooves;

one end of the elastic piece is located between the two adjacent shifting forks.

As a preferred scheme of the many claw type elastic support of resistant 1050 ℃ booster nozzle cascade, wherein: the mounting disc is provided with a mounting hole, a distance sleeve is fixedly connected in the mounting hole, and the other end of the distance sleeve abuts against the end face of the mounting boss.

As a preferred scheme of the many claw type elastic support of resistant 1050 ℃ booster nozzle cascade, wherein: the middle body is in clearance fit with the mounting disc, a first pin hole is formed in the mounting disc, a second pin hole corresponding to the first pin hole is formed in the middle body, a rolling pin is fixedly connected to the first pin hole, and the other end of the rolling pin is embedded into the second pin hole.

As a preferred scheme of the many claw type elastic support of resistant 1050 ℃ booster nozzle cascade, wherein: still include to separate the heat exchanger, it is located to separate the heat exchanger the mounting disc with between the midbody, it is the disc structure to separate the heat exchanger.

As a preferred scheme of the many claw type elastic support of resistant 1050 ℃ booster nozzle cascade, wherein: a turbine is mounted within the VGT assembly.

As a preferred scheme of the many claw type elastic support of resistant 1050 ℃ booster nozzle cascade, wherein: the rolling pins are at least provided in two.

The utility model has the advantages that: the supporting piece is added in the supercharger to reinforce the axial elastic support of the VGT component, after the assembly of the variable cross-section supercharger is completed, the multi-claw type elastic supporting piece can be elastically compressed, the size of the compression amount meets the requirement that the VGT component does not shake axially, and the failure probability is reduced; a positioning bulge and a groove are arranged between the supporting piece and the intermediate body, so that the incorrect assembly can be prevented, and the multi-claw type elastic supporting piece can be prevented from axially rotating; the supporting piece is arranged between the intermediate body and the mounting disc, and the advantage of relatively low temperature at the position is utilized, so that more expensive materials are avoided, and the cost is saved; the inner cylindrical surface of the supporting piece is in interference fit with the outer cylindrical surface of the intermediate body, one end of the multi-claw elastic supporting piece in the axial direction is in contact with the end surface of the intermediate body, and the other end of the multi-claw elastic supporting piece is in contact with the end surface of the mounting disc, so that the radial stability is ensured, and the axial stability of the VGT component is effectively controlled; the supporting piece is made of INCOL718 or similar materials, and meets the requirement of exhaust temperature of the engine at 1050 ℃.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic view of an installation structure of a multi-claw type elastic support of a 1050 ℃ resistant supercharger nozzle ring in a supercharger according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an intermediate body in a multi-claw elastic support of a nozzle ring of a 1050 ℃ resistant supercharger according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a support member in a multi-claw type elastic support member of a nozzle ring of a 1050 ℃ resistant supercharger according to an embodiment of the present invention;

fig. 4 is an exploded view of the multi-claw type elastic support of the nozzle ring of the 1050 ℃ resistant supercharger according to the embodiment of the present invention;

fig. 5 is a schematic structural view of a VGT assembly in a multi-claw type elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a volute assembly in the multi-claw elastic support of the nozzle ring of the 1050 ℃ tolerant supercharger according to the embodiment of the present invention;

fig. 7 is a schematic view of an internal structure of a VGT assembly in a multi-claw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger according to an embodiment of the present invention;

fig. 8 is a schematic front view of a VGT assembly in a multi-claw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of illustration, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Further still, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Examples

Referring to fig. 1 to 8, the present embodiment provides an elastic support system for a VGT assembly of a variable geometry turbocharger, including a VGT assembly 100, which includes a mounting plate 101 and a toggle plate 102 coaxially mounted with the mounting plate 101, where the toggle plate 102 is a circular ring structure that does not move around a fixed axis in a full circle, and the mounting plate 101 serves as a mounting carrier for the entire VGT assembly 100.

Further, the VGT assembly comprises a volute assembly 200 integrated with a rear cover in the prior VGT assembly 100, that is, the rear cover in the prior VGT assembly 100 and the original volute are integrated into a whole, the volute assembly 200 comprises a connecting end 201, a positioning boss 202 positioned at the inner side of the connecting end 201, and an installation boss 203 positioned inside the volute assembly 200, the installation disc 101 is positioned in the positioning boss 202, the dial disc 102 is positioned at one side of the positioning boss 202, and the volute assembly 200 is integrally formed; connecting end 201 is connected with midbody 300, is provided with V type sealing ring between connecting end 201 and the midbody 300, and V type sealing ring A's mounting groove comprises connecting end 201 and the face on the midbody 200, adopts radial big clearance fit's mode between the inner cylinder face of mounting disc 101 and the midbody 300 outer cylinder face, and also is radial big clearance fit with the inner cylinder face of volute assembly 200, and big clearance fit can avoid causing the phenomenon that the part was stung and is difficult to disassemble because of the heat altered shape that thermal stress produced.

Further, a connecting protrusion 302 is arranged at one end of the middle body 300 connected with the mounting disc 101, a support 303 is sleeved on the connecting protrusion 302, the support 303 comprises a support ring 303a sleeved on the connecting protrusion 302, the support ring 303a is in interference fit with the outer diameter of the connecting protrusion 302, a plurality of elastic pieces 303b are distributed at one end of the support ring 303a along the circumference, a V-shape is formed between the elastic pieces 303b and the side surface of the support ring 303a, wherein the elastic pieces 303b extend from one end of the support ring 303a close to the connecting protrusion 302, the tail end of the elastic pieces 303b is bent and abutted against the mounting disc 101, the bending of the tail end of the elastic pieces 303b is tangential to the end surface of the mounting disc 101, one axial side of the support ring 303a is in contact with the end surface of the middle body, the other axial side of the support ring 303a is in contact with the end surface of the VGT assembly, so that radial stability is ensured, the axial stability of the VGT assembly is effectively controlled.

Preferably, a limiting boss 303c is arranged in the support ring 303a, a limiting groove 302a is axially arranged on the connecting protrusion 302, and the limiting boss 303c is embedded in the limiting groove 302a, so that the error assembly can be prevented, and the circumferential offset of the support member 303 is limited.

Further, the installation boss 203 and the installation disc 101 are coaxially arranged, a plurality of blades 103 are uniformly arranged between the installation boss 203 and the installation disc 101 along the circumference, and the blades 103 are in clearance fit with the installation boss 203. The blade 103 is provided with a blade shaft 103a, and the blade shaft 103a passes through the mounting disk 101. Blade shaft 103a passes one end fixedly connected with shift fork 104 of mounting disc 101, and the one end that blade shaft 103a was kept away from to shift fork 104 is provided with spacing boss 104a, and dial 102 evenly is provided with a plurality of along the circumference and stirs groove 102a, and spacing boss 104a imbeds in stirring groove 102 a.

It should be noted that one end of the elastic piece 303b is located between two adjacent shift forks 104, so as to prevent interference with the shift forks 104.

That is, when the dial plate 102 rotates, the dial groove 102a drives the limit boss 104a, so that the dial plate 104 rotates around the vane shaft 103 a.

In this embodiment, the back lid of VGT subassembly is integrative with the volute, saves the sealing ring structure between back lid and the volute, and reduce cost improves the booster performance. The multi-claw type elastic supporting piece is added in the supercharger to reinforce the axial elastic support of the VGT component, after the assembly of the variable cross-section supercharger is completed, the multi-claw type elastic supporting piece can be elastically compressed, the size of the compression amount meets the requirement that the VGT component does not shake axially, and the failure probability is reduced; the supporting piece is arranged between the intermediate body and the mounting disc, and the advantage of relatively low temperature at the position is utilized, so that more expensive materials are avoided, and the cost is saved; the supporting piece adopts non-circumferential symmetric support, so that the interference with the elastic coiling pin and the large shifting fork is effectively avoided; the supporting piece is made of INCOL718 or similar materials, and meets the requirement of exhaust temperature of the engine at 1050 ℃.

Further, be provided with mounting hole 101a on the mounting disc 101, the rigid coupling has distance cover 105 in the mounting hole 101a, wherein, mounting hole 101a can be blind hole or through-hole, distance cover 105's the other end is contradicted on installation boss 203 terminal surface, distance cover 105 and mounting hole 101a interference fit, the riveting is replaced in the interference pressure equipment, reduce assembly cost, distance cover 105 on the VGT subassembly and volute assembly 200's installation boss 203 be integrated back lid face contact promptly, reduce the vibration of VGT subassembly in the axial direction. At the same time, the material requirement for the distance sleeve is reduced compared with the structure that the front cover and the rear cover are arranged on the vgt. As rivets tend to fail at high temperatures, resulting in reduced supercharger performance. The existing structure only needs the distance sleeve to have a contact force with the mounting boss 203 of the volute assembly 200, and the requirement is low.

Furthermore, the intermediate body 300 is in clearance fit with the mounting plate 101, and the large clearance fit can avoid the phenomenon that parts are jammed and difficult to disassemble due to thermal deformation caused by thermal stress. The mounting plate 101 is provided with a first pin hole 101b, the intermediate body 300 is provided with a second pin hole 301 corresponding to the first pin hole 101b, the first pin hole 101b is fixedly connected with a rolling pin 106, and the other end of the rolling pin 106 is embedded into the second pin hole 301. The mounting plate 101, the middle body 300 and the rolling pin 106 are connected together in an interference fit mode, the radial and circumferential freedom degrees of the VGT are limited, and the rolling pin has the effect of reducing vibration; the rolling pins are distributed in an approximately axisymmetric mode, so that the circumferential anti-torsion force of the VGT assembly is improved, two rolling pins are adopted in the embodiment, the number of the rolling pins can be increased properly according to the anti-torsion force and the assembly condition, and at least two rolling pins 106 are arranged.

Further, a heat shield 400 is further included, the heat shield 400 is located between the mounting plate 101 and the middle body 300, and the heat shield 400 has a disk-shaped structure and plays a role of axial elastic support through the heat shield.

It should be noted that relevant parts of the VGT not mentioned in the embodiments are all in the prior art and are not described again; a turbine 107 is mounted within the VGT assembly 100. The engine exhaust enters the cavity radially through the turbocharger volute assembly 200, pushes the turbine 107 to rotate and apply work, and then is discharged from the turbine axially along the volute.

In the embodiment, the intermediate body and the VGT assembly are limited in the radial direction and the circumferential direction by two (a plurality of) rolling pins, so that the flexibility of the VGT assembly in the radial direction and the circumferential direction is ensured, and a failure mode generated by vibration impact is reduced; the VGT component is pressed on the volute assembly through the elastic force of the heat shield in the axial direction, and a distance sleeve on the VGT component is in contact with the rear cover surface integrated with the volute so as to reduce the vibration of the VGT component in the axial direction; the two rolling pins are distributed on the VGT close to the axial symmetry position of the VGT as much as possible (the symmetry position is +/-40 degrees), or a plurality of rolling pins are arranged, so that the circumferential anti-torsion force of the VGT component is improved, the radial size of the mounting disc of the VGT component is reduced, the manufacturing cost is reduced, the overall volume of the supercharger is reduced due to the reduction of the structure of the VGT component, and the effects of reducing weight and cost are achieved; the VGT back cover is integrated as an organic whole with the volute, saves the seal ring structure simultaneously, has reduced the cost of manufacture, improves the booster performance.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a multijaw type elastic support of resistant 1050 ℃ booster nozzle ring which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

VGT assembly (100) comprising a mounting disc (101), a dial plate (102) mounted coaxially with the mounting disc (101),

a volute assembly (200), said volute assembly (200) including a connection end (201);

the mounting structure is characterized in that the connecting end (201) is connected with a middle body (300), a V-shaped sealing ring (A) is arranged between the connecting end (201) and the middle body (300), a connecting bulge (302) is arranged at one end of the middle body (300) connected with the mounting disc (101), a supporting piece (303) is sleeved on the connecting bulge (302), the supporting piece (303) comprises a supporting ring (303 a) sleeved on the connecting bulge (302), a plurality of elastic pieces (303 b) are distributed at one end of the supporting ring (303 a) along the circumference, a V shape is formed between the elastic pieces (303 b) and the side surface of the supporting ring (303 a), and the tail end of each elastic piece (303 b) is bent and abutted against the mounting disc (101);

a first limiting boss (303 c) is arranged in the support ring (303 a), a limiting groove (302 a) is axially arranged on the connecting protrusion (302), and the first limiting boss (303 c) is embedded into the limiting groove (302 a).

2. The multi-jaw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger of claim 1, wherein: the volute assembly (200) further comprises a positioning boss (202) located on the inner side of the connecting end (201) and an installation boss (203) located inside the volute assembly (200), the installation disc (101) is located in the positioning boss (202), the poking disc (102) is located on one side of the positioning boss (202), and the volute assembly (200) is integrally formed.

3. The multi-jaw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger of claim 2, wherein: the mounting boss (203) and the mounting disc (101) are coaxially arranged, a plurality of blades (103) are uniformly arranged between the mounting boss (203) and the mounting disc (101) along the circumference, and the blades (103) are in clearance fit with the mounting boss (203).

4. The multi-jaw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger of claim 3, wherein: the blade (103) is provided with a blade shaft (103 a), and the blade shaft (103 a) penetrates through the mounting disc (101).

5. The multi-jaw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger of claim 4 wherein: one end, penetrating through the mounting disc (101), of the blade shaft (103 a) is fixedly connected with a shifting fork (104), one end, far away from the blade shaft (103 a), of the shifting fork (104) is provided with a second limiting boss (104 a), the shifting disc (102) is uniformly provided with a plurality of shifting grooves (102 a) along the circumference, and the second limiting boss (104 a) is embedded into the shifting groove (102 a);

one end of the elastic piece (303 b) is positioned between two adjacent shifting forks (104).

6. The multi-jaw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger of claim 5, wherein: be provided with mounting hole (101 a) on mounting disc (101), the rigid coupling has distance cover (105) in mounting hole (101 a), the other end of distance cover (105) is contradicted on installation base (203) terminal surface.

7. The multi-jaw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger of claim 6 wherein: the middle body (300) and the mounting disc (101) are in clearance fit, be provided with first pinhole (101 b) on the mounting disc (101), be provided with on the middle body (300) with first pinhole (101 b) corresponding second pinhole (301), first pinhole (101 b) rigid coupling has roll system round pin (106), roll system round pin (106) other end embedding in second pinhole (301).

8. The multi-jaw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger of claim 7 wherein: the heat insulation structure further comprises a heat insulation cover (400), wherein the heat insulation cover (400) is located between the mounting plate (101) and the middle body (300), and the heat insulation cover (400) is of a disc-shaped structure.

9. The multi-jaw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger of claim 8, wherein: a turbine (107) is mounted within the VGT assembly (100).

10. The multi-jaw elastic support of a nozzle ring of a 1050 ℃ tolerant supercharger of claim 9 wherein: at least two rolling pins (106) are provided.

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