Abstract:
A turbine seal system comprises an annular structural frame, a circumferential ring, a fairing and a seal. The circumferential ring is joined to the annular structural frame. The fairing is disposed within the annular structural frame and is engaged with the circumferential ring to limit circumferential rotation of the fairing with respect to the annular structural frame. The seal extends between the fairing and the circumferential ring. In one embodiment, the structural component comprises a ring-strut-ring turbine exhaust case.
Abstract:
A gas turbine engine includes a casing, a probe, and a fairing. The probe extends through the casing and the fairing is disposed within the casing. The fairing is engaged by the probe to prevent circumferential movement of the fairing relative to the casing.
Abstract:
A fairing (118) comprises an inner platform (122), an outer platform (120), a plurality of vane bodies (124), and a flange (126). The inner and outer rings define radially inner and outer boundaries of an airflow path. The vane bodies extend radially from the inner platform to the outer platform. The flange extends radially outward from the outer platform, and is defined by a frustoconical surface (S) extending radially inward and axially aft from a substantially radial upstream surface.
Abstract:
An assembly for a gas turbine engine includes a seal and a flow diverter. The flow diverter is disposed adjacent the seal to direct a secondary gas flow that passes across the seal away from a rotor cavity such that the secondary gas flow travels back toward a main gas flow path of the gas turbine engine.
Abstract:
An assembly for a gas turbine engine includes a first module, a second module, and a finger seal. The second module is connected to the first module along a joint. The finger seal is connected to the first module at a fixed end and has a free end that cantilevers from the fixed end to contact the second module. The finger seal acts to seal the joint between the first module and second module from an ingestion gas flow of the gas turbine engine.
Abstract:
A method of forming an airfoil with an integrated platform includes: a) providing an airfoil core; b) wrapping a first overwrap ply around the airfoil core; c) darting a first end of the first overwrap ply to allow the overwrap ply to extend perpendicular to the airfoil core to form a first platform; d) filling the darted parts filler plies; e) wrapping a second overwrap ply around the first overwrap ply; f) darting a first end of the second overwrap ply to allow the second overwrap ply to extend adjacent to the first overwrap ply to form the first platform; g) filling the darted parts of the second overwrap ply with one or more filler plies; and h) placing a cap ply in the shape of the platform adjacent to at least one of the first and second overwrap plies. An airfoil with an integrated platform is also disclosed.
Abstract:
An assembly (20) includes a hydrostatic non-contact seal device (32) having a plurality of seal shoes (76) arranged about an axial centerline (22) in an annular array. The assembly (20) also includes a seal base (74) and a plurality of spring elements (78). The seal base (74) circumscribes the annular array of the seal shoes (76). A threaded base aperture (84) extends axially through the seal base (74). Each of the spring elements (78) is radially between and connects a respective one of the seal shoes (76) with the seal base (74). The spring elements (78) are formed integral with the seal base (74) and the seal shoes (76) as a unitary body. A method includes providing a tool (116) and mating a threaded shaft (118) of the tool (116) with the threaded base aperture (84), and using the tool (116) to remove the hydrostatic non-contact seal device (32).
Abstract:
A seal assembly (10) includes a side ring (18) and a cartridge (20). The side ring (18) comprises an annular piece of solid material. The cartridge (20) is affixed to the side ring (18) and comprises a shoulder (54), a beam (24) connected to and extending from the shoulder (54), a shoe (22) attached to an end of the beam (24), and a rotary seal (38) disposed on a bottom portion of the shoe (22).