Module for a fluid flow machine

Abstract

The present invention relates to a module for a turbomachine, comprising a guide vane assembly, a seal carrier arranged radially within an inner platform of the guide vane assembly, seal carrier walls, namely a first and a second seal carrier wall, a sliding body, and a connecting element, wherein the first seal carrier wall and the seal carrier are formed integrally, and wherein the seal carrier walls are multi-part relative to each other, and the second seal carrier wall is attached to the first seal carrier wall and the seal carrier via the connecting element, wherein the sliding body holds the seal carrier walls spaced apart from each other in such a way that they axially define a gap in which the guide vane assembly engages with a radially inwardly extending guide pin.wherein the second sealing support wall is spaced away from the axially oriented wall surface of the first sealing support wall and from the sealing support.

Description

Technical area

[0001] The present invention relates to a module for a turbomachine. State of the art

[0002] The turbomachine could be a jet engine, for example, a turbofan engine. Functionally, the turbomachine is divided into a compressor, a combustion chamber, and a turbine. In the case of a jet engine, for example, the intake air is compressed by the compressor and burned in the downstream combustion chamber with added kerosene. The resulting hot gas, a mixture of combustion gas and air, flows through the downstream turbine and expands. In the process, the turbine extracts a proportion of the hot gas's energy to drive the compressor. The turbine and compressor are typically constructed in multiple stages, with each stage having a guide vane and a rotor blade ring.

[0003] The present invention relates to a module with a guide vane arrangement and a seal carrier. The guide vanes of the guide vane arrangement extend radially between a radially outer outer platform and a radially inner inner platform. The seal carrier is arranged radially within this inner platform and forms part of the so-called Inner Air Seal (IAS). The seal carrier helps reduce or prevent gas losses, which is beneficial for the efficiency of the turbomachine. The goal is to allow as much or as much of the fluid or gas as possible to flow through the gas channel of the turbomachine. Description of the invention

[0004] The present invention is based on the technical problem of providing a particularly advantageous module for a turbomachine.

[0005] This is achieved according to the invention with a module according to claim 1. In this module, the seal carrier and the guide vane arrangement are mounted relative to one another by means of a first and a second seal carrier wall, for which purpose the seal carrier walls axially define an intermediate space into which the guide vane arrangement engages from the radial outside with at least one guide pin. The second seal carrier wall is provided in multiple pieces with the first seal carrier wall, i.e. it is assembled with the first seal carrier wall as a previously separate part and fastened thereto. This fastening is realized with a connecting element, wherein a sliding body arranged in the intermediate space keeps the seal carrier walls at the defined distance so that they define the intermediate space.

[0006] Although the second seal support wall is attached to the first seal support wall and thus also to the seal support via the sliding body and the connecting element, it is spaced apart from the axially facing wall surface of the first seal support wall and also from the seal support itself. Said wall surface of the first seal support wall faces the second seal support wall, thus, in other words, delimits the intermediate space in the axial direction. The second seal support wall is spaced apart from this wall surface and also from the seal support itself, thus, in other words, it rests neither on this wall surface nor on the seal support itself.

[0007] The spacing can be advantageous, for example, in that it can reduce or prevent axial force input into the connecting element, which can, for example, increase the robustness of the multi-part structure or create opportunities for weight reduction. On the other hand, the spacing from the seal carrier can reduce or prevent radial force input into the seal carrier, thus preventing, for example, tilting of the seal carrier.

[0008] Such a situation could occur temporarily, for example, due to transient temperature changes and then potentially result in permanent leaks. In summary, the spacing allows for a design that is advantageous in terms of robustness and tightness, despite the multi-piece seal carrier walls.

[0009] The multi-piece design of the seal support walls can be advantageous, for example, in terms of manufacturing. For example, if two seal support walls are formed monolithically with the seal support and a material-removing production process were used, the space between them would have to be exposed by a comparatively deep cut. Irrespective of this, the multi-piece design can also open up possibilities in material selection and thickness. For example, the second seal support wall can be thinner, particularly in the form of a sheet metal, thus creating scope for weight optimization. The seal support is designed as a single piece with the first seal support wall, which in turn can create stability (despite the multi-piece seal support walls).

[0010] Preferred embodiments can be found in the dependent claims and the entire disclosure, although the presentation of the features does not always distinguish in detail between the module and the turbomachine or corresponding methods or uses. The disclosure should be read with regard to all claim categories.

[0011] In the context of this disclosure, the term "one-piece" means not non-destructively separable, thus generally referring, for example, to two parts joined, perhaps welded, together in a joining process. However, the one-piece design preferably involves a monolithic construction, meaning that the parts in question, e.g., the seal carrier and the first seal carrier wall (or, for example, a seal carrier wall and its axial section / web, see below), are formed from the same, uninterrupted material. In other words, "monolithic" means an integral design without a material boundary between them.

[0012] The first seal support wall and the seal support are formed integrally, preferably monolithically. Since the second seal support wall is attached separately and the gap thus does not need to be considered during the manufacture of the seal support, the monolithic manufacture of the seal support and the first seal support wall can be simplified, for example, by casting. The gap therefore does not need to be created by laborious material removal, for example, see above.

[0013] In general, within the context of this disclosure, "axial" and "axial direction" refer to the longitudinal axis of the module, i.e., the longitudinal axis of the turbomachine. This longitudinal axis can, for example, coincide with a rotational axis around which the rotor blades assigned to the guide vane arrangement rotate during operation. "Radial" refers to the radial directions perpendicular to it, pointing away from the longitudinal axis, and "rotation" and "rotational direction" refer to a rotation around the longitudinal axis. "Inner" and "outer" refer to the radial direction unless expressly stated otherwise; thus, "inner" is closer to the longitudinal axis than "outer." Reference to an axial section refers to a sectional plane containing the longitudinal axis.

[0014] The seal carrier can, for example, carry a sealing element radially inward, which can seal inwardly against a sealing structure, such as a sealing tip, which rotates together with the shaft or the rotor blades during operation. The sealing element can be, for example, a brush seal or a so-called honeycomb seal, or more generally, a run-in lining. As explained in detail below, the first seal carrier wall can preferably be formed monolithically with the seal carrier, wherein the two can then form, in particular, a T-shape when viewed in an axial section (i.e., the first seal carrier wall is spaced from the axial ends of the seal carrier).

[0015] The connecting element can generally be a screw or a bolt, for example, but is preferably implemented in the form of a rivet. Irrespective of this, the seal support walls can be fastened to one another with several connecting elements (and sliding elements) distributed along the circumference, and these sliding elements can, in particular, form a so-called spoke centering element, see below for details. In general, "a" and "an" are to be read as indefinite articles in the context of this disclosure, unless expressly stated otherwise, and thus always also as "at least one" and "at least one."

[0016] In a preferred embodiment, the first and second seal support walls together form a contactless labyrinth seal and / or the second seal support wall and the seal support together form a contactless labyrinth seal. The first and second seal support walls then do not touch each other ("contactless"), yet a good sealing effect can be achieved with the labyrinth seal, for example, by (multiple) redirection of a leakage flow. This can generally be achieved by an overlap in the axial and / or radial direction; for example, viewed in an axial section, an axially perpendicular line can pass through both the first and second seal support walls and / or an axially parallel line can pass through both a seal support wall and the seal support.

[0017] According to a preferred embodiment, at least one of the seal support walls comprises an axial section that protrudes in the axial direction relative to the other seal support wall and is part of the contactless labyrinth seal or forms the latter. Viewed in an axial section, the axial section can define an axially extending channel of the labyrinth seal. Preferably, both the first and the second seal support walls can each be provided with a corresponding axial section, wherein the axial sections can mutually define the axial channel.

[0018] Where reference is made to an "axial section" of the respective seal support wall in the context of the labyrinth seal or below in connection with the radial contact, this section is preferably formed integrally, in particular monolithically, with the respective seal support wall. Viewed in an axial section, the axial section can be provided in the form of a web, for example, having a greater extension in the axial direction than in the radial direction.

[0019] According to a preferred embodiment, at least one of the seal support walls is formed with a step when viewed in an axial section. This step can also delimit the labyrinth seal, for example together with an axial section of the other seal support wall. Viewed in the axial section, the above-mentioned axially perpendicular straight line can, for example, first pass through the step and then the axial section of the other seal support wall from radially inside to radially outside; preferably, it can then pass through the seal support wall with the step again. In other words, the seal support wall with the step can additionally have an axial section which, together with the step, forms an axially oriented U-shape into which the other seal support wall engages with an axial section.

[0020] To form the contactless labyrinth seal between the second seal support wall and the seal support, the latter can have a radially extending flank, for example, on a step or, in particular, a radial section that rises radially outward. This flank, together with the second seal support wall, can define the labyrinth seal, i.e., a radially extending channel of the labyrinth seal. The radial section can preferably be provided integrally, in particular monolithically, with the seal support, for example, as a web that rises radially outward.

[0021] According to an alternative embodiment to the contactless labyrinth seal, the second seal support wall is spaced apart from the seal support and also axially spaced from the wall surface of the first seal support wall, but still maintains radial contact with the first seal support wall. "Radial contact" here means that the two are pressed radially against each other, i.e., radial compression increases the contact pressure in the contact surface (whereas radial separation would decrease the contact pressure in the contact surface).

[0022] Viewed in an axial section, the contact surface where the radial contact occurs is preferably aligned essentially parallel to the axis, i.e., tilted by no more than 20°, 10°, or 5° to the longitudinal axis, preferably actually parallel to the axis. Regardless of these details, the radial contact creates a contact area, meaning the seal is achieved through a tight fit between the seal carrier walls. These may be frictionally engaged, but are not, for example, firmly bonded to one another, which can reduce mechanical stresses, for example.

[0023] The second seal carrier wall is spaced from the seal carrier; accordingly, the radial contact is offset radially outwards compared to the seal carrier. This radial offset makes it possible to reduce the introduction of forces into the seal carrier despite the frictional fit, thus preventing, for example, tilting (see above). The first seal carrier wall preferably comprises an axial section protruding axially towards the second seal carrier wall, in particular a web formed integrally / monolithically therewith (see above), which forms the radial contact with the second seal carrier wall. The axial section is offset radially outwards relative to the seal carrier. In general, the second seal carrier wall can also be designed to be radially shortened, i.e. with its radially inner end directly abutting (sitting, so to speak) against the axial section of the first seal carrier wall.

[0024] In a preferred embodiment, however, the second seal support wall also has an axial section, which can in particular be designed as a web provided integrally / monolithically therewith (see above) and is also offset radially outward (relative to the seal support). The axial section of the second seal support wall protrudes toward the first seal support wall and forms the radial contact with its axial section. The axial section of the second seal support wall can be arranged radially inside or outside the axial section of the first seal support wall, i.e., it can abut it from the radial inside or radial outside.

[0025] According to a preferred embodiment, which can relate to both the contactless labyrinth seal and the radial contact, the seal carrier is positioned exclusively by the first seal carrier wall. Viewed in an axial section, for example, an axially parallel straight line that lies radially outside the seal carrier (i.e., no longer penetrating the seal carrier) can only penetrating the first seal carrier wall, and not the second seal carrier wall. An axially parallel straight line located radially further outward, in the area of ​​the intermediate space, will then, of course, penetrating both seal carrier walls. In other words, there can be an annular space radially between the seal carrier and the second seal carrier wall, in which exclusively the first seal carrier wall is present.

[0026] Preferably, the seal carrier has no radially outwardly extending / protruding sections. Viewed in an axial section, apart from the first seal carrier wall, no sections or similar extend radially outward from the seal carrier, thus forming, for example, a simple T-shape. In other words, preferably only the integral / monolithic first seal carrier wall protrudes radially outward from the seal carrier.

[0027] With reference to the flow of the working gas through the module's gas channel, which, for example, flows around the rotor blades of the rotor blade arrangement, "front" means upstream and "rear" means downstream. In a preferred embodiment, the first seal support wall is arranged at the front and the second seal support wall at the rear, i.e., the first seal support wall is arranged upstream and the second downstream. In the present disclosure, reference is generally made to the first and second seal support walls, with "first" always also being interpreted as "front" and "second" as "rear."

[0028] In general, the sliding body can also be provided monolithically with one of the seal support walls, i.e., the first or, in particular, the second seal support wall. In a preferred embodiment, however, it is formed in multiple pieces relative to the seal support walls, and the connecting element extends axially through it. The latter is also preferred in the case of a monolithic design, but not mandatory. The connecting element, which extends through the multi-piece sliding body, holds it radially between the seal support walls in a form-fitting manner, and the sliding body is then additionally clamped axially, for example.

[0029] In a preferred embodiment, the second seal support wall has a smaller thickness than the first seal support wall, thus utilizing the multi-piece design to optimize weight. The thicknesses are each viewed in an axial section, with an average value being used in the case of a thickness that varies across the length of the respective seal support wall.

[0030] According to a preferred embodiment, the second seal support wall is formed from a sheet metal, which can allow for a particularly thin design and / or simple production. The sheet metal can generally be segmented in the circumferential direction, i.e., provided in multiple parts. However, a continuous design in the circumferential direction, i.e., not divided / segmented, is preferred.

[0031] The guide pin, with which the guide vane arrangement engages in the intermediate space, extends radially inward from its inner platform. Relative to the direction of rotation, the guide pin preferably abuts the sliding body, i.e., on the circumferential side. In a preferred embodiment, it encloses the sliding body together with another guide pin, which abuts the opposite side of the sliding body in the direction of rotation. This is thus held between the guide pins, which is also referred to as Seaweed ("pliers"). The guide pins and the sliding body can still slide radially against each other, with several correspondingly held sliding bodies distributed around the circumference, thus representing a spoke centering arrangement.

[0032] The invention also relates to a turbine for a turbomachine, in particular for an aircraft engine, which has a module disclosed here. Short description of the drawings

[0033] In the following, the invention is explained in more detail using an exemplary embodiment, whereby the individual features within the scope of the independent claims can also be essential to the invention in other combinations and no distinction is made in detail between the different claim categories.

[0034] In detail, Figure 1 shows a jet engine in an axial section; Figure 2 shows a first module according to the invention with a guide vane arrangement and a seal carrier in an axial section; Figure 3 shows a second module according to the invention with a guide vane arrangement and a seal carrier; Figure 4 shows a third module according to the invention with guide vane arrangements and a seal carrier; Figure 5 shows a fourth module according to the invention with a guide vane arrangement and a seal carrier; Figure 6 shows a fifth module according to the invention with a guide vane arrangement and a seal carrier; Figure 7 shows a sixth module according to the invention with a guide vane arrangement and a seal carrier. Preferred embodiment of the invention

[0035] Fig. 1shows a schematic view of a turbomachine 1, specifically a jet engine. The turbomachine 1 is functionally divided into a compressor 1a, a combustion chamber 1b, and a turbine 1c. Both the compressor 1a and the turbine 1c are each constructed from several stages; each stage consists of a guide vane ring and a rotor blade ring or comprises a rotor blade ring (axially forward or rearward). In the case of the turbine 1c and / or the compressor 1a, a rotor blade ring can be arranged downstream of the associated guide vane ring, provided the respective stage comprises a guide vane ring. During operation, the rotor blades rotate around the longitudinal axis 2.

[0036] Fig. 2shows, as module 20, a section of the turbine 1c, again in an axial section. In detail, a guide vane arrangement 21 with a guide vane blade 21a and an inner platform 21b, as well as a guide pin 21c, can be seen. The guide vane blade 21a is arranged radially on the outside of the inner platform 21b, and the guide pin 21c extends radially inside it into an intermediate space 22. This intermediate space 22 is axially delimited between a first, front seal support wall 31 and a second, rear seal support wall 32. The first seal support wall 31 is located upstream of a flow 15 of the module 20, and the second seal support wall 32 is located downstream.

[0037] The first seal support wall 31 is monolithically formed with a seal support 41; both can be manufactured, for example, as a cast part. A sealing element 42, e.g., a honeycomb seal, is provided radially inward on the seal support 41. The sealing element 42 seals against a sealing structure 43, which is only schematically shown as a contour here and rotates together with the shaft during operation.

[0038] The second seal support wall 32 is provided in multiple pieces with the first seal support wall 31 and is attached thereto via a connecting element 35, in this case a rivet. The connecting element 35 passes through a sliding body 36, which maintains the seal support walls 31, 32 at the defined axial distance. Relative to an axial direction 17, the first seal support wall 31 has a wall surface 31a facing away from the intermediate space 22, which in this case faces upstream, and a wall surface 31b facing the intermediate space 22, which in this case faces downstream.

[0039] The second seal support wall 32 is spaced apart from the wall surface 31b of the first seal support wall 31 in the axial direction 17. A gap 24 thus exists between the axial section 32.1 of the second seal support wall 32, which in the present example is formed at its radially inner end, and the first seal support wall 31 or wall surface 31b. However, this gap is comparatively small and therefore not visible in detail in the present illustration. This allows, for example, a reduction in the force applied to the connecting element 35 (see the above details).

[0040] Furthermore, the second seal carrier wall 32 is also spaced from the seal carrier 41, i.e., provided at a distance therefrom in the radial direction 18. This can, as explained above, prevent, for example, the introduction of force into the seal carrier and thus tilting. The seal carrier walls 31, 32 together form a contactless labyrinth seal 25, in this case through the overlap between the axial section 32.1 of the second seal carrier wall 32 and an axial section 31.1 of the first seal carrier wall 31. Despite the gap 24 between the axial section 31.1 and the seal carrier wall 32, as well as the gap 24 between the axial section 32.1 and the first seal carrier wall 31, a relative seal can be achieved with the contactless labyrinth seal 25 by deflecting the leakage flow.

[0041] Figure 3 shows a Figure 2alternative design, whereby the following illustration primarily emphasizes the differences, which also applies to all other embodiments. In general, within the scope of this disclosure, the same reference numerals designate the same part or parts with the same function, and in this respect, reference is always made to the description of the respective other figures. Also in the embodiment according to Figure 3 the second seal support wall 32 is spaced apart in the axial direction 17 from the wall surface 31b of the first seal support wall 31, so that a gap 24 is present between the wall surface 31b and the axial section 32.1 of the second seal support wall 32 (not shown in detail).

[0042] The same applies to the axial section 31.1 of the first seal support wall 31 and the second seal support wall 32, where a gap 24 is also present. With the axial sections 31.1, 32.1, the seal support walls 31, 32 again form a contactless labyrinth seal 25. Since the axial section 32.1 is smaller than in the variant according to Figure 2 is offset further radially inwards, it also forms a contactless labyrinth seal 125 with the seal carrier 41, despite the radial gap 26 therebetween.

[0043] In the embodiment according to Figure 4The first seal support wall 31 is formed with a step 31.2, i.e., viewed in the axial section, with an axial offset. This step 31.2, together with the axial section 32.1 of the second seal support wall 32, forms the contactless labyrinth seal 25. In the present example, the first seal support wall 31 is additionally formed with an axial section 31.1, which, together with the step 31.2, forms a U-shaped recess into which the axial section 32.1 engages. Despite the gaps between the axial sections 31.1, 32.1 and the respective other seal support walls 31, 32, which are not referenced in detail here for the sake of clarity, a good seal can be achieved.

[0044] Even in the embodiment according to Figure 5The seal support walls 31, 32 together form a contactless labyrinth seal 25, specifically via the axial section 32.1 of the second seal support wall 32. Furthermore, any leakage path is further extended by the contactless labyrinth seal 125 between the seal support 41 and the second seal support wall 32. For this purpose, the seal support 41 is formed with a radial section 41.1 that rises radially outward. The radial section 41.1 does not rest against the second seal support wall 32, neither axially nor radially (column not referenced in detail for the sake of clarity).

[0045] The embodiment according to Figure 6 corresponds to the previously discussed variants in terms of its basic structure with the seal support walls 31, 32, which are secured relative to each other via the sliding body 36 and the connecting element 35. Furthermore, in this case, too, as in the Figures 2-4, both the first seal support wall 31 and the second seal support wall 32 are each provided with an axial section 31.1, 32.1. In contrast to the variants discussed so far, however, these axial sections 31.1, 32.1 are not spaced apart from one another, but rather are provided in radial contact 65. They thus abut one another in the radial direction 18 and thus form a seal 66, although a certain relative offset is possible in the axial direction 17. This prevents the introduction of axial forces, while simultaneously creating a seal.

[0046] The variant according to Figure 7 corresponds in its basic structure to that according to Figure 6 , the seal carrier walls 31, 32 are in radial contact 65 with each other via a respective axial section 31.1, 32.1. In contrast to Figure 6In this case, the second seal support wall is made of sheet metal and the axial section 32.1 is created by bending a radially inner section. The same applies to the embodiment according to Figure 8 , in which the axial section 32.1 formed from the sheet metal, in contrast to Figure 7 not from the radial outside, but from the radial inside against the axial section 31.1 of the first seal carrier wall 31.

[0047] For illustration, Figure 8further referenced are a front and a rear sealing plate 81, 82, which are assembled as multi-piece parts to form the seal support walls 31, 32 and are also held together by the connecting element 35. The front sealing plate 81, together with the inner platform 21b and an inner platform 85 (shown only schematically as a contour) of the upstream rotor blade arrangement, forms a so-called fish mouth seal 91, while the rear sealing plate 82, together with the inner platform 21b and the inner platform 86 (shown only schematically as a contour) of the downstream rotor blade arrangement, forms a fish mouth seal 92. Although also shown in the other figures, the sealing plates 81, 82 are optional; the module 20 can also be provided without a fish mouth seal or, alternatively, only with a front or a rear sealing plate. LIST OF REFERENCE SYMBOLS

[0048] Turbomachine 1 compressor 1a combustion chamber 1b turbine 1c Longitudinal axis 2 Flow 15 axial direction 17 Radial direction 18 module 20 Guide vane arrangement 21 guide vane blade 21a Indoor platform 21b guide pin 21c Indoor platform 21b space 22 gap 24 contactless labyrinth seal 25 radial gap 26 first, front seal carrier wall 31 opposite wall surface 31a facing wall surface 31b second, rear seal carrier wall 32 axial section 32.1 connecting element 35 sliding body 36 Seal carrier 41 Sealing element 42 Sealing structure 43 radial contact 65 Sealing sheets 81, 82 Indoor platform 85 Indoor platform 86 Fish mouth seals 91, 92 contactless labyrinth seal 125

Claims

1. A module (20) for a turbomachine (1), comprising a guide vane arrangement (21), a seal carrier (41) arranged radially within an inner platform (21b) of the guide vane arrangement (21), seal carrier walls (31, 32), namely a first (31) and a second seal carrier wall (32), a sliding body (36), and a connecting element (35), wherein the first seal carrier wall (32) and the seal carrier (41) are formed integrally with one another, and wherein the seal carrier walls (31, 32) are made of multiple pieces relative to one another, and the second seal carrier wall (32) is fastened to the first seal carrier wall (31) and the seal carrier (41) via the connecting element (35), wherein the sliding body (36) keeps the seal carrier walls (31, 32) spaced apart from one another in such a way that they axially define an intermediate space (22) between them,in which the guide vane arrangement (21) engages with a radially inwardly extending guide pin (21c), wherein the second seal carrier wall (32) is spaced from the wall surface (31b) of the first seal carrier wall (31) facing in the axial direction (17) and from the seal carrier (41).

2. Module (20) according to claim 1, wherein the first seal support wall (31) and the second seal support wall (32) form a contactless labyrinth seal (25) with each other.

3. Module (20) according to claim 1 or 2, wherein the second seal carrier wall (32) and the seal carrier (41) form a contactless labyrinth seal (125) with each other.

4. Module (20) according to claim 2 or 3, wherein the second seal support wall (32) comprises an axial section (32.1) projecting in the axial direction to the first seal support wall (31) for forming the contactless labyrinth seal (25, 125).

5. Module (20) according to one of claims 2 to 4, wherein at least one of the seal support walls (31, 32) viewed in an axial section is shaped with a step (31.2) to form the contactless labyrinth seal (25, 125).

6. Module (20) according to claim 1, wherein the first seal carrier wall (31) comprises an axial section (31.1) projecting in the axial direction (17) towards the second seal carrier wall (32), which is offset radially to the seal carrier (41) and forms a seal (66) with the second seal carrier wall (32) by means of a radial contact (65) therewith.

7. Module (20) according to claim 6, wherein the second seal carrier wall (32) comprises an axial section (31.1) projecting in the axial direction towards the first seal carrier wall (31), which is offset radially to the seal carrier (41) and forms the radial contact (65) with the axial section of the first seal carrier wall (31).

8. Module (20) according to one of the preceding claims, in which the seal carrier (41) is positioned exclusively by the first seal carrier wall (31) and, in the intended arrangement, is otherwise free of contact with other components radially outward and / or does not comprise any further radially outwardly projecting sections.

9. Module (20) according to one of the preceding claims, in which, with respect to a flow (15) through the module (20), the first seal support wall (31) is arranged upstream and the second seal support wall (32) is arranged downstream.

10. Module (20) according to one of the preceding claims, in which the sliding body (36) is made up of several pieces relative to the seal support walls (31, 32) and the connecting element (35) passes through the sliding body (36).

11. Module (20) according to one of the preceding claims, wherein the second seal support wall (32) has a smaller thickness than the first seal support wall (31).

12. Module (20) according to claim 11, wherein the second seal support wall (32) is formed from a sheet metal which is preferably provided continuously in the circumferential direction without interruption.

13. Module (20) according to one of the preceding claims, wherein the first seal carrier wall (31) is formed monolithically with the seal carrier (41), in particular forms a T-shape with the seal carrier (41) in cross section.

14. Turbine (1c) for a turbomachine (1), in particular an aircraft engine, with a module (20) according to one of the preceding claims.

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