Integrally bladed rotor disk for a turbine
AssigneeMTU Aero Engines AG
InventorsHans-Peter Borufka, Frank Stiehler, Hernan Victor Arrieta, Patrick Prokopczuk, Joachim Lorenz
Life of this patent
Estimating the term…
Abstract
An integrally bladed rotor disk (20) for a turbine, including rotor blades (40), which are joined in a substance-to-substance bond to a disk element (30), and a sealing device (60) for preventing or reducing the extent to which cooling air is able to flow from a high-pressure side (12) of the rotor disk (20) through openings (24) on the rotor disk (20) to a low-pressure side (14) of the rotor disk (20).
Claims20
1-17. (canceled)
An integrally bladed rotor disk for a turbine, comprising:
- a disk element;
- a plurality of rotor blades joined in a substance-to-substance bond to the disk element;
- and
- a seal for preventing or reducing an extent to which cooling air is able to flow from a high-pressure side of the rotor disk through openings on the rotor disk to a low-pressure side of the rotor disk.
An integrally bladed rotor disk for a turbine, comprising:
- a disk element;
- a plurality of rotor blades joined in a substance-to-substance bond to the disk element;
- and
- a finger cover plate for directing cooling air to the rotor blades, the finger cover plate having an outer periphery and having, at the outer periphery, finger-like radial protuberances and radial notches therebetween, a distance to the outer peripheral edge of the finger cover plate from a midpoint of the finger cover plate being greater at the finger-shaped radial protuberances than at the radial notches.
An integrally bladed rotor disk for a turbine, comprising:
- a disk element;
- a plurality of rotor blades joined in a substance-to-substance bond to a disk element, the rotor blades having cooling channel therein, entry orifices to the cooling channels being configured at sides of the rotor blades that face a high-pressure side of the rotor disk, and/or at other sides of the rotor blades that face a low-pressure side of the rotor disk.
An integrally bladed rotor disk for a turbine, comprising:
- a disk element;
- a plurality of rotor blades joined in a substance-to-substance bond to the disk element, each rotor blade having a shaft and a blade and a platform between the shaft and the blade;
- and
- seals for preventing or reducing a mass flow in the radial direction between the platforms, the seals each being configured in an opening between the shafts of adjacent rotor blades on the platforms.
A finger cover plate for an integrally bladed rotor disk for a turbine comprising:
- at the outer periphery of the finger cover plate, finger-like radial protuberances and radial notches therebetween, a distance to the outer peripheral edge of the finger cover plate from the midpoint thereof being greater at the finger-shaped radial protuberances than at the radial notches.
Dependencies are inferred from the claim text.