Abstract:
A non-contact seal assembly (28) includes a plurality of seal shoes (54) arranged about a centerline (22) in an annular array, the seal shoes (54) including a first seal shoe (54) extending axially along the centerline (22) between a first shoe end (70) and a second shoe end (72). The non-contact seal assembly (28) may comprise a seal base (52) circumscribing axially offset from the annular array of the seal shoes (54). The non-contact seal assembly (28) may further comprise a plurality of spring elements (56), each of the spring elements (56) radially distal from and connecting to a respective one of the seal shoes (54), and each of the plurality of spring elements (56) is axially adjacent to the seal base (52).
Abstract:
An assembly (20) includes 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.
Abstract:
An assembly (20) includes a monolithic carrier structure (44) and a seal assembly (30). The monolithic carrier structure (44) includes a carrier base (46) and a support ring (48). The carrier base (46) extends axially along the centerline (22). The support ring (48) projects radially inward from the carrier base (46). The seal assembly (30) is nested radially within the carrier base (46) and axially next to the support ring (48). The seal assembly (30) includes a seal base (72), a plurality of spring elements (76) and a plurality of seal shoes (74) arranged about the centerline (22) in an annular array. The seal base (72) circumscribes the annular array of the seal shoes (74). Each of the spring elements (76) is radially between and connects a respective one of the seal shoes (74) with the seal base (72).
Abstract:
An assembly for a gas turbine engine includes a strut and a heat shield. The heat shield is disposed adjacent the strut and the heat shield and is adapted to contain a cooling air flow that passes along first cavity between the heat shield and the strut.
Abstract:
A method of calculating a throat area (66) of a section of a machinery includes outlining a boundary (68) of the throat area (66) of the section, selecting a plurality of inspection points (OD1-N, ID1-N, SS1-N, PS1-N) along the boundary (68) of the throat area (66), dividing the throat area (66) into a plurality of sections (S1-S8), calculating an individual area of each of the plurality of sections (S1-S8) and summing the individual areas of each of the plurality of sections (S1-S8) to calculate the throat area (66).
Abstract:
An assembly for a gas turbine engine includes a component, a fairing, and a seal. The fairing is disposed adjacent to the component and defines a primary gas flow path. The fairing has a rib that is located outside of the primary flow path and extends from an outer surface of the fairing. The seal is disposed between the rib and the component.
Abstract:
A turbine exhaust case comprises a frame, a fairing, a heat shield and a mechanical linkage. The frame comprises an outer ring, an inner ring, and a plurality of struts joining the outer ring and the inner ring. The fairing comprising a ring-strut-ring structure disposed within the frame. The heat shield is disposed between the frame and the fairing. The mechanical linkage couples the heat shield to the fairing. In one embodiment, the heat shield comprises a multi-piece heat shield that inhibits heat transfer between the frame and the fairing. In various embodiments, the mechanical linkage comprises a slip joint or a fixed joint for coupling the heat shield to the fairing.
Abstract:
An assembly for a gas turbine engine includes a strut and a heat shield. The heat shield is disposed adjacent the strut and the heat shield and is adapted to contain a cooling air flow that passes along first cavity between the heat shield and the strut.
Abstract:
A gas turbine engine assembly includes a second module connected axially to a first module along a joint, and an annular cavity defined between the first module and the second module. The seal assembly is disposed proximate the cavity, and includes a seal support ring, a first finger seal, and a second finger seal. The support ring has a backing portion secured to a radial wall of to the first module, and a first seal land extending axially into the cavity away from the first module. The first finger seal has a free end adapted to contact an inner side of the first seal land. The second finger seal is adapted to seal a radially outer portion of the annular cavity.