Mounting tubes for pressurizing an internal enclosure in a turbomachine
AssigneeSnecma
InventorsChristian LARGILLIER, Francois Marie Paul Marlin, Regis Eugene Henri Servant
Life of this patent
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Abstract
A turbomachine comprising high- and low-pressure compressor shafts guided in bearings isolated from an internal enclosure by a sealing end plate, and radial pressurization tubes connecting the enclosure to an air passage passing through the intermediate casing, the ends of these tubes being engaged in sealed manner in radial ducts of the intermediate casing and in radial chimneys of the sealing end plate, the chimneys being of a length is sufficient to enable the ends of the tubes to be moved in translation therein between a service position and a mounting position for the tubes.
Claims9
A turbomachine compressor module comprising a low-pressure compressor and a high-pressure compressor having shafts that are guided in bearings that are isolated from an internal enclosure containing the compressor shafts by labyrinth seals mounted on a sealing end plate carried by an intermediate casing, and radial tubes for pressurizing the internal enclosure, connecting said enclosure to a compressed air passage passing through the intermediate casing, the ends of these tubes being engaged in sealed manner in radial ducts of the intermediate casing and in radial chimneys of the sealing end plate, means being provided to hold the ends of the tubes stationary in the radial ducts of the intermediate casing, wherein the chimneys of the sealing end plate are of radial size or length that is sufficient to enable the radially inner ends of the tubes to be moved therein in translation between a service position in which the radially outer ends of the tubes are mounted in sealed manner in the ducts of the intermediate casing, and a mounting position in which the radially outer ends of the tubes are not in the ducts of the intermediate casing.
Dependencies are inferred from the claim text.