Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Blade received in well or slot
Patent
1998-04-06
2000-12-26
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Blade received in well or slot
416204A, 416204, 416219R, F04D 2944
Patent
active
061649171
ABSTRACT:
A lightweight high temperature multiproperty rotor disk and method of manufacture for use in a gas turbine engine. The rotor disk of a nickel super alloy and having a plurality of lightweight high temperature single crystal blade attachment lugs bonded thereto. The single crystal high temperature rotor blade attachment lugs being cast in a substantially rectangular shape and bonded to the circumference of the disk. A method of manufacturing the rotor includes positioning the plurality of single crystal attachment lugs on a positioning ring that has locating nests formed thereon. Subsequently, the rotor disk is placed within the bonding ring and a restraining ring is placed around the entire subassembly. Upon subjecting the assembly to high temperature the rotor disk, having a coefficient of thermal expansion greater than the coefficient of thermal expansion of the restraining member, forces the components into a mating relationship. Upon completion of the bonding cycle, the restraining ring is removed from the assembly and the bonding ring is machined away.
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Frasier Christine M.
Muskat James C.
Teague Charles J.
Allison Engine Company, Inc.
Barton Rhonda
Look Edward K.
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