Stress resistant hybrid radial turbine wheel

Details Stress resistant hybrid radial turbine wheel Stress resistant hybrid radial turbine wheel

1980-01-16

1982-06-22

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

416213R, 416241R, 416244A, F01D 514

Patent

active

043359973

ABSTRACT:
A hybrid dual property radial turbine rotor for a gas turbine engine includes an airfoil shell having a plurality of radially outwardly directed airfoils thereon joined to a continuously circumferentially formed inner periphery including a constant diameter axially extending portion and a radially outwardly flared skirt portion thereon into which is fitted a preformed hub plug of dense stress resistant material having an axially extending nose portion thereon with a controlled constant circumference surface throughout its length of a precision dimensioned diameter and further including a conical end thereon with a surface thereon of a slope that is congruent with the slope of the flared skirt portion of the cast metal rotor shell and wherein the slope of the flared skirt portion is configured to optimize the location of the high strength hub material and to achieve optimum blade and hub stress levels.

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patent: 3940268 (1976-02-01), Catlin
patent: 4096615 (1978-06-01), Cross
patent: 4152816 (1979-05-01), Ewing et al.
patent: 4188169 (1980-02-01), Mowill
patent: 4221540 (1980-09-01), Savonuzzi
patent: 4273512 (1981-06-01), Weiler

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