Abstract:
An apparatus for a gas turbine engine includes an airfoil (22) defining a leading edge (28) and a trailing edge (30), a root (26) located adjacent to the airfoil (22), a vapor cooling system, and a film cooling system for cooling the airfoil in conjunction with the vapor cooling system. The vapor cooling system includes a vaporization section (36) located within the airfoil (22) and a condenser (40) section located within the root (26).
Abstract:
An inner diameter vane seal (42) for a gas turbine engine (10) comprises an annular, ring-like body having inner and outer diameter rims (56, 54), forward and aft faces (47A, 47B) and an air passage (74). The outer diameter rim (54) extends circumferentially for engaging inner diameter ends (73) of stator vanes (38). The inner diameter rim (56) extends circumferentially and is spaced radially from the outer diameter rim (54). The forward and aft faces (47A, 47B) extend radially between the outer diameter rim (54) and the inner diameter rim (56). The air passage (74) extends from the forward face (47A) to the aft face (47B) between the inner and outer diameter rims (56, 54).
Abstract:
A spacer (62C) for a gas turbine engine includes a rotor ring (84) defined along an axis of rotation. The rotor ring (84) defines a forward circumferential flange (92) which defines a first thickness and an aft circumferential flange (94) which defines a second thickness, the first thickness different than the second thickness. A plurality of core gas path seals (82) which extend from the rotor ring (84) opposite the flanges (92, 94).
Abstract:
A gas turbine engine system (10) includes a fan assembly (12), a low pressure compressor (14), a low pressure turbine (16), a plurality of engine cores (30-1 to 30-n) including a first engine core and a second engine core, and a control assembly (36). A primary flowpath (F P ) is defined through the fan assembly (12), the low pressure compressor (14), the low pressure turbine (16), and the active engine cores. Each engine core includes a high pressure compressor (40), a combustor (38) downstream from the high pressure compressor (40), and a high pressure turbine (42) downstream from the combustor (38). The control assembly (36) is configured to control operation of the plurality of engine cores (30-1 to 30-n) such that in a first operational mode the first and the second engine cores are active to generate combustion products and in a second operational mode the first engine core is active to generate combustion products while the second engine core is idle.
Abstract:
An oil supply system for a gearbox (22) in a gas turbine engine includes a holding container (50) which holds a quantity of oil to be delivered to a pump. The holding container includes a flexible barrier (60). One side of the flexible barrier (60) is in communication with a source of pressurized fluid through a connection (31). The other side is in communication with the oil supply.
Abstract:
A cooling system for a gas turbine engine includes a non-rotating component (32) extending into an engine flowpath, a vapor cooling assembly (26) configured to transport thermal energy from a vaporization section (34) to a condenser section (36) through cyclical evaporation and condensation of a working medium sealed within the vapor cooling assembly (26), wherein the vaporization section (34) is located at least partially within the non-rotating component (32), and wherein the condenser section (36) is located outside the non-rotating component (32) and away from the engine flowpath.
Abstract:
A hybrid cooling system for a gas turbine engine (10) includes a vapor cooling assembly (26) and a cooling air cooling assembly (16). The cooling air cooling assembly (16) is configured to remove thermal energy from cooling air used to cool a first component (12) of the gas turbine engine (10). The vapor cooling assembly (26) configured to transport thermal energy from a vaporization section (52) to a condenser section (54) through cyclical evaporation and condensation of a working medium sealed within the vapor cooling assembly (26). The vaporization section (52) is located at least partially within a second component (14) of the gas turbine engine, and the condenser section (54) is located outside the second component (14).
Abstract:
A gas turbine engine (10) includes a gear system (25) driven by a first and second counter rotating low pressure shaft (14) and a fan (20) driven by the gear system (25).
Abstract:
A gas turbine engine (10) includes a gear system (25) driven by a first and second counter rotating low pressure shaft (14) and a fan (20) driven by the gear system (25).