F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
170/72
F01D 5/34 (2006.01) F01D 11/00 (2006.01)
Patent
CA 1083969
TURBINE WHEEL WITH SHEAR CONFIGURED STRESS DISCONTINUITY Abstract of the Disclosure: An integrally cast turbine blade and wheel assembly has a plurality of circumferentially spaced radially outwardly directed blades on a peripheral rim that is connected by a wheel web to a central hub having a bore therethrough. The assembly includes a plurality of circumferentially spaced, pairs of grooves to define a plurality of weakened sections in the wheel rim and web that will selectively crack in shear to relieve stresses during either a tensile or compressive phase of wheel assembly operation produced during thermal cycling of an associated engine; and wherein resultant stress relief cracks define a labyrinth seal path to control gas bypass across the blade row.
280319
General Motors Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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