KR20110115510A - Insert for a turbo-machine and turbo-machine equipped with the insert - Google Patents

Abstract

The present invention relates to a turbomachine insert and a turbomachine (1) with the insert, the turbomachine (1) having a radial blade wheel (50), the insert (30) of the base body (31). The base body 31 has a first axial end 32 provided to form an axial first flow passage S1, and, together with the hub 51 of the blade wheel, is enlarged in a bow and radial direction. A second axial end 33 provided to form an outwardly deflected second flow passage S2, wherein an annular strip 36 is provided at the second axial end from the outside, the strip being axially Extending toward the first axial end 32, the strip 36 is interrupted by slots 37 in the circumferential direction, and fixed means extending radially outwardly are provided on the outer circumference of the base body; By means of the fastening means the insert Can be fixed to the housing 10 of the turbomachine, the fixing means having a plurality of fixing ribs 34 spaced apart from each other in the circumferential direction, the base body extending in the circumferential direction between the fixing ribs adjacent to each other. And a slit portion 39 which divides the wall of the base body in the axial direction.

Description

Inserts for turbomachines and turbomachines with these inserts {INSERT FOR A TURBO-MACHINE AND TURBO-MACHINE EQUIPPED WITH THE INSERT}

The present invention relates to an insert according to the preamble of claim 1 and to a turbomachine with said insert.

An insert of this type, and a turbomachine formed as a compressor, with the insert and the radial blade wheel, is known from DE 10 2005 039 820 A1. The insert disclosed in this publication is provided by a slot provided in an annular strip, whereby the second axial end is deformed mushroom-like or radially outwardly upon the rupture of the blade wheel towards the spiral housing of the turbomachine and the strip is conical in the inner rib of the spiral housing. The frictional engagement in the slot allows the energy released upon rupture of the blade wheel to be converted into strain energy.

In the insert disclosed in DE 10 2005 039 820 A1, the forces of the radially outwardly debris of the blade wheel, which are released upon rupture of the blade wheel, are converted into strain energy. However, the torsional force of the fragments of the blade wheel that is released during the rupture of the rotating blade wheel at high speed is converted by the insert's structural design to only a small degree of deformation energy with respect to the insert's deformation, so that the torsional force is the rupture safety or containment of the turbomachine. The degree of safety can be lowered.

The object of the present invention is to provide an insert according to the preamble of claim 1, which realizes a higher burst safety for turbomachined inserts by means of improved properties relating to the conversion of the force released upon rupture of the blade wheel of the turbomachinery. To provide. Moreover, the subject of this invention is providing the turbo machine provided with such an insert.

The problem is solved by an insert according to claim 1 and a turbo machine according to claim 12. Improvements of the invention are given in the dependent claims.

According to a first aspect of the invention there is provided an insert for a turbomachine with a radial blade wheel, said insert comprising a hollow cylindrical base body, said base body having an axial first flow for the working fluid of the turbomachine. A first axial end provided to form a passageway, and radially outwardly extending and together with the hub of the blade wheel, to form a second flow passageway for the working fluid that is connected to the first flow passageway and bent radially outwardly. An provided second axial end, wherein an annular strip is provided at the outer circumference of the base body at the second axial end, the strip extending in the axial direction toward the first axial end, the strip in the circumferential direction; Interrupted by slots of the support and supported by the support means toward the outer periphery of the base body, the outer periphery of which is axially spaced from the strip. Fastening means extending radially outwardly, by means of which the insert can be fastened to the housing of the turbomachine. The insert according to the invention has a plurality of fixing ribs in which the fixing means are spaced apart from each other in the circumferential direction, and the base body extends in the circumferential direction between the fixing ribs adjacent to each other to divide the wall of the base body in the axial direction. It is characterized by having a portion.

By providing a slit portion for axially dividing the wall of the base body according to the invention, the base body is structurally slit between itself from the debris of the blade wheel and the torsional force released upon rupture of the blade wheel rotating at high rotational speeds. It is weakened to such an extent that it can be delivered to the stationary ribs comprising the portion and converted to strain energy by deformation of the stationary rib. Thus, a high burst safety for a turbomachine with an insert according to the invention is obtained.

The thickness of the fixing ribs may be set according to a predetermined deformation of the fixing ribs or according to the energy absorbed by the fixing ribs.

According to an embodiment of the invention the insert is an insert for a radial compressor.

According to an embodiment of the insert according to the invention, the base body is provided with a slit portion extending in the circumferential direction and axially dividing the wall of the base body, respectively, between all the fixing ribs adjacent to each other.

According to this embodiment of the present invention, the base body is further structurally weakened so that the torsional force is better transmitted to the stationary rib and its more severe deformation results in greater torsional force reduction.

According to another embodiment of the insert according to the invention, the fixing ribs are integrally formed on the outer circumference of the base body and the slit portion is radially up to each foot region of the fixing rib forming a connection with the base body. By extension, structural weakening of the foot area is achieved.

For example, by the slit portion formed up to the foot region of the fixed ribs by cutting, the structural strength of the fixed ribs is further weakened, so that the fixed ribs can be more easily deformed, so that the conversion of the torsional force to the deformation energy It can be made smooth and uniform, further increasing the burst safety of the turbomachine.

According to another embodiment of the insert according to the invention, each slit portion divides the wall of the base body in the axial direction, thereby occupying at least half of the axial length of the base body and having a base body having a first axial end thereof. And a second axial portion of the base body, which occupies less than half of the first axial portion of the base body, and has a second axial end thereof.

According to this embodiment of the invention, each slit portion is disposed relatively close to the annular strip provided at the second axial end, mushroom-like at the rupture of the blade wheel or towards the first axial end of the base body and radially outward. Deformation of the second axial end of the furnace base body is facilitated, since an articulated joint is formed by structural weakening in the slit partial region. Due to this, the force from the fragments of the blade wheel, which is released upon rupture of the blade wheel and acts radially outwardly, can be more easily converted into strain energy.

It is preferred that the split is made such that the axial length of the first axial portion completely comprises the first flow passage and the axial length of the second axial portion comprises the second flow passage.

According to an embodiment of the insert according to the invention, the first axial portion occupies approximately two thirds of the axial length of the base body and the second axial portion occupies approximately one third of the axial length of the base body. do.

According to an embodiment of the insert according to the invention, there is provided a slit comprising all the slit portions in the area of the fixing ribs in the base body and extending over the circumference and dividing the wall of the base body in the axial direction, wherein the fixing ribs are The slits each have a width that bridges in the axial direction.

In this embodiment of the present invention, the torsional stiffness of the second axial portion of the insert, which is provided with torsional force at the time of rupture, is determined only by the foot portion of the fixing ribs connecting the annular slit, so that the torsional force is better with the fixing ribs. Can be transmitted and more torsional force reduction can be achieved by its more severe deformation.

According to an embodiment of the insert according to the invention, the slots interrupting the annular strip are symmetrically distributed in the circumferential direction, so that slotless portions of the annular strip are formed with equally sized projections symmetrically distributed in the circumferential direction.

By this embodiment of the annular strip, mushrooming or deformation of the second axial end or the second axial portion of the base body towards and towards the first axial end of the base body is preferably This is easy because the slots provide a lateral movement space for the protrusions when mushrooming the second axial end or the second axial portion. Since the slots are distributed symmetrically, the movement of the projection is done uniformly in the circumferential direction, whereby a mushroom-like deformation of the second axial end or the second axial portion is made uniform in the circumferential direction.

According to another embodiment of the insert according to the invention, the slots are each formed mirror-shaped with respect to the shape of the projection.

Preferably the shape of the slot appears along the mirror axis extending along each free end of the projection perpendicular to the central longitudinal axis of the base body.

By forming the slots in the mirror image relative to the shape of the protrusion, the stresses occurring in the annular strip upon deformation of the second axial end or the second axial portion are taken into account, thereby making mushroom-like deformation easier.

According to another embodiment of the insert according to the invention, the slots stopping the annular strip are designed to be the same size together to occupy about 50% of the annular strip.

Due to this, only the material in the form of protrusions is required to support and fix the second axial end or the second axial part of the insert in the inner circumference of the housing in the category of deformation, as disclosed in DE 10 2005 039 820 A1. Because of this, mushroom-like deformations become easier.

Preferably each projection has exactly the same size as each slot.

According to an embodiment of the insert according to the invention, each projection has as support means a support rib extending from the center of the projection to the circumference of the base body in relation to the circumferential width of the projection.

By means of the support ribs, the protrusions can be supported on the inner circumference of the housing as a support member, without bending radially inwards during mushroom deformation.

According to another embodiment of the insert according to the invention, the number of support ribs is equal to the number of fixed ribs, each supporting rib being aligned with respect to exactly one fixed rib in the axial direction.

By this symmetrical alignment arrangement of the fixing ribs and the supporting ribs, which are desirable in terms of casting technology, the stresses occurring in the base body upon deformation of the second axial end or the second axial portion are further considered, thereby making the mushroom deformation more Easier

According to a second aspect of the invention, an insert according to one of the above-described embodiments of the present invention, any combination of any of the above-described embodiments or all of the above-described embodiments, a housing having an inner circumference into which the insert is inserted, of an insert Connecting means to which fixed ribs are fixed, a shaft axially supported in the housing and extending axially into an inner chamber defined by the base body in an axial direction coinciding with the central longitudinal axis of the base body of the insert, and the interior A blade wheel disposed on the shaft in the chamber and having a hub and a plurality of blades disposed on the hub, wherein the first axial end of the base body defines an axial first flow passage for the working fluid and And a second axial end of the base body, together with a hub of a blade wheel, is connected to the first flow passage and radius As it forms a second flow passage for the working medium that is deflected outwardly, the working fluid must flow radially through the blades of the blade wheels, and the housing has a specific radial distance from the strip in the region of the annular strip of the insert at its inner circumference. Having an engaging engagement means, by which engagement the strip can be brought into form-fitting engagement, which implements radial and axial support for the strip, the insert being ruptured by the blade wheel during operation. A turbo machine is provided, which is designed such that the second axial end of the base body can be deformed towards the first axial end of the base body and outward in the engaged state of the engagement means with the strip.

An insert according to the invention is provided in a turbomachine, wherein the base body of the insert is structurally secured in that the torsional force released upon rupture of the rotating blade wheel comprises a slit portion between them from the fragments of the blade wheel. By deliberately weakening so that it can be transferred to ribs and converted into strain energy by deformation of the stationary rib, the turbomachine has a higher burst safety.

According to an embodiment of the invention, the turbo machine is formed as a radial flow compressor.

According to an embodiment of the turbomachine according to the invention, the engagement means have a first support surface for the strip towards the annular strip, which extends perpendicularly to the longitudinal center axis of the base body of the insert, the first support surface It is arranged at specific axial intervals from the strip.

By means of the arrangement according to the invention of the first support surface, the strip is in the second axial or second axial direction of the base body, towards the first axial end of the base body and towards the radially outward direction. Upon deformation of the part, it is in shape fit engagement with it and can be supported on it in the axial direction. As a result, the axial displacement of the second axial end or the second axial portion is reliably limited and the bursting force is reliably absorbed in the housing.

According to another embodiment of the turbomachine according to the invention, the housing has a plurality of reinforcing ribs arranged circumferentially spaced from one another on its inner circumference and axially aligned with respect to the supporting means of the strip. Engaging means are formed in each of the reinforcing ribs in the form of a stepped recess.

Preferably each of the support ribs of the protrusion of the strip is aligned with respect to exactly one reinforcing rib.

By the preferred intentional arrangement of the supporting means of the strip relative to the reinforcing ribs, the force is optimally transmitted from the second axial end or the second axial portion of the base body to the reinforcing ribs. As a result, the second axial end or the second axial portion is optimally deformed therein.

The protrusions preferably have a width in the circumferential direction which reliably strikes their associated reinforcing ribs even in the case of severe torsional deformation of the insert.

According to an embodiment of the turbomachine according to the invention, each stepped recess extends perpendicularly to the longitudinal center axis of the base body of the insert and a first support surface for the strip facing the annular strip, and the first support And a second support face for the strip which is connected directly to the face and extends parallel to the longitudinal central axis and towards the second axial end.

By the provision of a second support surface in combination with the first support surface, the strip or respective projections can be reliably supported in the housing in an axially and radially shape-fitting manner.

According to the invention, due to the improved properties associated with the conversion of the force released upon rupture of the blade wheel of the turbomachine, the turbomachine with inserts has a higher burst safety.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a longitudinal sectional view of a turbomachine according to an embodiment of the present invention;
FIG. 2 is a perspective view of the insert of the turbo machine of FIG. 1. FIG.
3 is a perspective cross-sectional view of a portion of the insert of FIG. 2.
4 is another perspective cross-sectional view of the portion shown in FIG. 3 of the insert;

1 to 4, a turbo machine 1 according to an embodiment of the invention, which is formed as a radial flow compressor of an exhaust gas turbocharger, is described here.

The turbo machine 1 comprises a housing 10, a shaft 20 (shown schematically only) rotatably supported by the housing 10, an insert 30 inserted into the housing 10, and a compressor here. A blade wheel 50 formed as a blade wheel, the blade wheel being configured to rotate relative to the hub 51 and the plurality of blades 52 disposed on the hub 51. Have

(Bearing) The housing 10 is screwed with the spiral housing 11.

The insert 30 comprises a circular hollow cylindrical base body 31. The base body 31 has a first axial end 32 and a second axial end 33, the first axial end 32 extending in an axial direction (axial direction AR). The first flow passage S1 for the working fluid 1) is formed, and the second axial end 33 extends radially outward in the radial direction (radial RR) and the hub 51 of the blade wheel 50. And a second flow passage S2 for the radially curved working fluid connected to the first flow passage S1, so that the working fluid must flow through the blade 52 of the blade wheel 50 in the radial direction. do.

At the second axial end 33 of the base body 31 an annular strip 36 is arranged on the outer circumference 31a of the base body 31, which strip 36 is arranged in the axial direction with a first axial end ( Extending toward 32, the strip 36 being interrupted by a plurality of slots 37 spaced apart from one another in the circumferential direction (circumferential direction UR), integral with the strip 36, spaced apart from each other in the circumferential direction. It is supported by the outer circumference 31a of the base body 31 by a support rib 38 which forms a plurality of support means.

The outer circumference 31a of the base body 31 is integrally provided with a plurality of fixing ribs 34 which are formed axially spaced apart from the strip 36 and which extend radially outwardly and are spaced apart from each other in the circumferential direction. And the fixing ribs end together at an annular flange 35 arranged radially outward of the base body 31, by means of which the insert 30 uses a screw 35a to form a turbo machine 1. It is fixed to the spiral housing 11 of).

The circumferential thickness of the fixed ribs 34 is realized according to the rupture energy absorbed by the predetermined ribs or fixed ribs of the fixed ribs.

In particular, as shown in FIG. 2, the number of support ribs 38 is equal to the number of stationary ribs 34, with each support rib 38 being positioned relative to exactly one stationary rib 34 in the axial direction. Aligned.

The spiral housing 11 of the housing 10 has an inner circumference 12 into which the insert 30 is inserted and has a connecting flange 13 which provides a connecting means. The annular flange 35 of the fixing rib 34 of the insert 30 is fixed to the connecting flange by a screw 35a.

The shaft 20 is rotatably supported by the housing 10 and formed by the base body 31 in accordance with the central longitudinal axis of the base body 31 of the insert 30 (not shown separately). Extending axially into 31b), the blade wheel 50 is disposed in the inner chamber 31b.

The spiral housing 11 of the housing 10 is arranged in its inner circumference 12 in the region of the annular strip 36 of the insert 30, spaced from one another in the circumferential direction and having a certain radial distance from the strip 36. It has a plurality of reinforcing ribs 14 which form engagement means each axially aligned with respect to one of the support ribs 38 of 36. The reinforcing ribs 14 are each provided with one stepped recess 15.

Each stepped recess 15 extends perpendicular to the longitudinal center axis of the base body 31 of the insert 30 and faces the annular strip 36 and has a specific axial spacing from the strip 36. A strip directly connected to the first support surface 15a to the strip 36 and to the first support surface 15a and parallel to the longitudinal center axis and extending towards the second axial end 33. And a second support surface 15b for 36.

In particular, as shown in FIG. 1, the strip 36 faces toward the first axial end 32 of the mushroom-shaped or insert 30 and radially outwards caused by rupture of the blade wheel 50. In the deformation of the second axial end 33, it is shaped with a stepped recess 15 of the reinforcing rib 14 of the spiral housing 11, which realizes axial support and radial support for the strip 36. It will be in a state of fit engagement. The strip 36 is supported on the first support surface 15a in the axial direction and is supported on the second support surface 15b in the radial direction.

The insert 30 has the first axial end of the insert 30 in a state where the second axial end 33 is engaged with the strip 36 and the recess 15 due to the rupture of the blade wheel 50 during operation. 32 and deformable outward in the radial direction.

In order to improve the deformability of the insert 30, the base body 31 extends in the circumferential direction between the fixing ribs 34 adjacent to each other and the slit portion 39 which divides the wall of the base body 31 in the axial direction. 3 and 4). In the above-described embodiment of the present invention, a slit portion 39 extending circumferentially between all the fixed ribs 34 adjacent to each other and dividing the wall of the base body 31 in the axial direction is provided in the base body 31. Is provided.

In particular, as shown in FIG. 1, in the above-described embodiment of the present invention all the slit portions 39 together form a slit 40 extending throughout the circumference and dividing the wall of the base body 31 in the axial direction. Form. The fixed ribs 34 have an axial width that bridges the slit 40 in the axial direction, respectively, as shown in FIGS. 2 to 4.

In particular, as shown in FIGS. 1, 3 and 4, the slit 40 including each slit portion 39 or all of the slit portions 39 has a fixed rib 34 connected to the base body 31. Since it extends in the radial direction to the foot region 34a of), structural weakening of the foot region 34a is obtained.

As best seen in FIG. 1, the slit portions 39 or slits 40 divide the wall of the base body 31 in the axial direction, thereby occupying more than half of the axial length of the base body 31. The second axial end 33, having a first axial end 32, occupies less than half of the first axial portion 32a of the base body 31, and the axial length of the base body 31. A second axial portion 33a of the base body 31 is formed. According to the above-described embodiment of the present invention, the first axial portion 32a occupies about two thirds of the axial length of the base body 31, and the second axial portion 33a is the base body 31. Occupies about one third of its axial length.

In particular, as shown in FIG. 2, the slots 37 interrupting the annular strip 36 are symmetrically distributed in the circumferential direction, whereby a projection 36a is formed in the slotless portion of the annular strip 36. The slots 37 that interrupt the annular strip 36 are designed to be equally sized to occupy about 50 percent of the annular strip 36 together, with the slots 37 each mirrored to the shape of the projection 36a. Is formed. In other words, the shape of the slot 37 appears along a mirror axis (not shown) that extends along each free end of the projection 36a perpendicular to the central longitudinal axis of the base body 31.

Each projection 36a is integrally formed with one support rib 38 extending radially inwardly toward the outer circumference 31a of the base body 31 at the center with respect to the circumferential width of the projection 36a. do.

Rupture of the blade wheel 50 and the resulting mushrooming or second axial direction of the base body 31 towards the first axial end 32 of the base body 31 and radially outwardly. Upon deformation of the end 33 or the second axial portion 33a, each of the protrusions 36a of the strip 36 is in shape fit engagement in the recess 15 of the reinforcing rib 14, and the protrusions 36a ) Is supported on the first support surface 15a of the recess 15 in the axial direction and on the second support surface 15b in the radial direction.

1: turbo machine
10: housing / bearing housing
11: spiral housing
12: next week
13: connection flange
14: reinforcement rib
15: recess
15a: first support surface
15b: second support surface
20: shaft
30: Insert
31: Base Body
31a: Outsourcing
31b: inner chamber
32: first axial end
32a: first axial direction portion
33: second axial end
33a: second axial direction portion
34: fixed rib
34a: foot area
35: ring flange
35a: screw
36: strip
37: slot
38: support rib
39: slit part
40: slit
50: blade wheel
51: Hub
52: blade
S1: first flow passage
S2: second flow passage
AR: axis direction
RR: radial direction
UR: circumferential direction

Claims (15)

Insert 30 for a turbomachine with radial blade wheel 50, the insert 30 having a hollow cylindrical base body 31, the base body 31 actuating the turbo machine 1. The first axial end 32 provided to form an axial first flow passage S1 for the fluid, and with the hub 51 of the blade wheel 50 extending radially outwardly, A second axial end 33 provided in connection with flow passage S1 to form a second flow passage S2 for the working fluid that is curved radially outward,
An annular strip 36 is provided on the second axial end 33 at the outer circumference 31a of the base body 31, the strip 36 extending the first axial end 32 in the axial direction. Extending in the circumferential direction, the strip 36 is interrupted by a plurality of slots 37 in the circumferential direction and supported by the support means towards the outer circumference 31a,
The outer circumference 31a is provided with fastening means extending radially outwardly, by which the insert 30 can be fastened to the housing 10 of the turbomachine 1. In the insert,
The fixing means has a plurality of fixing ribs 34 spaced apart from each other in the circumferential direction, and the base body 31 extends in the circumferential direction between the fixing ribs 34 adjacent to each other so that the base body 31. An insert for a turbomachine, characterized in that it has a slit portion (39) for dividing the wall in the axial direction. The base body (31) according to claim 1, wherein each one of the slit portions (39) extending circumferentially between all the fixing ribs (34) adjacent to each other to divide the wall of the base body (31) in the axial direction. Insert for turbo machine, characterized in that provided in). 3. The fixing ribs 34 of claim 1 or 2 are formed integrally with the outer circumference 31a of the base body 30, and the slit portion 39 forms a connection with the base body. Insertion for a turbomachine, characterized in that the structural weakening of the foot region (34a) is achieved by extending radially to each foot region (34a) of the fixing ribs (34). 3. The slit portion 39 according to claim 1 or 2, wherein each slit portion 39 divides the wall of the base body 31 in the axial direction, thus occupying at least half of the axial length of the base body 31 and A first axial portion 32a of the base body 31 including a first axial end 32, and less than half of the axial length of the base body 31 and the second axial end Insert for turbomachine, characterized in that a second axial portion (33a) of the base body (31) with (33) is formed. 5. The method of claim 4, wherein the first axial portion 32a occupies two thirds of the axial length of the base body 31, and the second axial portion 33a is of the base body 31. An insert for a turbomachine, characterized by occupying one third of the axial length. 3. The method according to claim 1, wherein all of the slit parts (39) are included in the area of the fixing ribs (34) in the base body (31) and extend over the circumference of the base body (31). A slit (40) is provided for dividing the wall in the axial direction, and the fixing ribs (34) have a width for bridging the slit (40), respectively, in the axial direction. 3. The slots (37) according to claim 1 or 2, wherein the slots (37) for interrupting the annular strip (36) are symmetrically distributed in the circumferential direction, and projections (36a) are formed in the slotless portion of the annular strip (36). Insert for turbomachines, characterized in that the. 8. Insert according to claim 7, characterized in that the slots (37) are each mirror-shaped with respect to the shape of the projection (36a). 3. Turbomachinery according to claim 1 or 2, characterized in that the slots (37) for interrupting the annular strip (36) are designed to be equally sized to occupy 50% of the annular strip (36) together. insert. 8. A support rib according to claim 7, wherein each projection 36a is a support means and extends from the center of the projection to the outer circumference 31a of the base body 31 in relation to the circumferential width of the projection 36a. An insert for a turbomachine, characterized by having (38). 11. The method of claim 10 wherein the number of support ribs 38 is equal to the number of the fixed ribs 34, and each support rib 38 is in relation to exactly one fixed rib 34 in the axial direction. Inserts for turbomachines characterized in that they are aligned. As the turbo machine 1,
Insert 30 according to any one of the preceding claims,
A housing 10 having an inner circumference 12 into which the insert 30 is inserted, connecting means to which the fixing ribs 34 of the insert 30 are fixed,
A shaft rotatably supported in the housing 10 and extending axially into an inner chamber 31b defined by the base body 31 coincident with the central longitudinal axis of the base body 31 of the insert 30. 20, and
A blade wheel 50 disposed on the shaft 20 in the inner chamber 31b, the blade wheel 50 having a hub 51 and a plurality of blades 52 disposed on the hub 51;
The first axial end 32 of the base body 31 forms an axial first flow passage S1 for working fluid, and the second axial end 33 of the base body 31 The working fluid is formed together with the hub 51 of the blade wheel 50 to form a second flow passage S2 for the working fluid which is connected to the first flow passage S1 and bent radially outward. Must flow through the blade 52 of the blade wheel 50 in a radial direction,
The housing 10 has engaging means at its inner circumference 12 in the region of the annular strip 36 of the insert 30, by means of which the strip 36 is connected to the strip 36. Can be in a shape fit engagement that implements axial and radial support for
The insert 30 is operated in such a state that the second axial end 33 of the base body 31 is engaged with the strip 36 and the engagement means due to rupture of the blade wheel 50 during operation. A turbomachine, characterized in that it is designed to be deformable towards the first axial end (32) of the body (31) and radially outward. 13. The first support for the strip 36 according to claim 12, wherein the engagement means extends perpendicularly to the longitudinal center axis of the base body 31 of the insert 30 and faces the annular strip 36. Turbo machine having a face (15a). 14. The housing (10) according to claim 13 has a plurality of reinforcing ribs (14) arranged on its inner circumference (12) spaced from one another in the circumferential direction and aligned with respect to the support means of the strip (36) in the axial direction. And said engaging means are formed in each of said reinforcing ribs (14) in the form of a stepped recess (15). 15. The strip according to claim 14, wherein each stepped recess (15) extends perpendicularly to the longitudinal center axis of the base body (31) of the insert (30) and faces the annular strip (36). A first support face 15a for (36), and the strip connected directly to the first support face 15a and extending parallel to the longitudinal center axis and towards the second axial end 33 Turbo machine having a second support surface (15b).

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