Turbomachine sealing assembly and associated assembly method

FR3158532A1Pending Publication Date: 2025-07-25SAFRAN AIRCRAFT ENGINES SAS
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Patent Information

Application Number
FR2024000574
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-19
Publication Date
2025-07-25

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Abstract

A sealing assembly for a turbomachine (100), comprising: a first ring sector (70) and a second ring sector (70), each comprising a connecting face (70a) facing each other, the connecting faces (70a) each comprising a groove (75; 75b) facing each other so as to form a housing (76; 76b), a sealing tab (8) being mounted in the housing (76; 76b) so as to provide a seal between the circumferentially adjacent first ring sector (70) and second ring sector (70), the sealing tab (8) being mounted in an elastically deformed manner in the housing (76; 76b) so as to apply to walls (77) of the housing (76; 76b) a force opposing the escape of the sealing tab (8) from the housing (76; 76b). Figure for the abstract: Fig. 4
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Claims

first turbine stage comprising a first distributor (2) and a first bladed wheel (3), and a second turbine stage comprising a second distributor (2), the turbine (160) comprising a sealing assembly according to one of claims 1 to 9 located axially between the first distributor (2) and the second distributor (2), the sealing assembly extending around the first bladed wheel (3).

11. Method of mounting a sealing assembly according to one of claims 1 to 9, comprising the following steps: - mounting (El) of the first ring sector (70; 70a) and of the second ring sector (70; 70a) circumferentially end-to-end around an axis (X) on an external casing (4) of a turbomachine; - elastic deformation (E2) of the sealing tab (8) by pinching the external longitudinal end portion (85) of the external branch (81) and the internal longitudinal end portion (87) of the internal branch (82), - mounting (E3) of the sealing tab (8) by inserting said sealing tab into the housing (76; 76b); - releasing (E4) the pinching of the external longitudinal end portion (85) and of the internal longitudinal end portion (87) so that the sealing tab (8) applies to the walls (77) of the housing (76; 76b) a force opposing the escape of the sealing tab (8) from the housing (76; 76b). [Fig. 1] Fig. 1 [Fig. 2] Fig.2 [Fig. 3] Fig. 3

Citation Information

Patent Citations

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    EP0896128B1

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    US20070297900A1

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    US9267385B2

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