Fluid reaction surfaces (i.e. – impellers) – With weight-balancing means – Self-shifting or selectively adjustable mass
Patent
1988-12-14
1989-10-10
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With weight-balancing means
Self-shifting or selectively adjustable mass
416193A, 416220R, 416500, F01D 526
Patent
active
048728101
ABSTRACT:
Damping of a turbine rotor is attained by a weighted member trapped between pockets formed in the neck of adjacent blades at one end and a space between the disk and TOBI rotor seal and forward extending blade lug at the other end. The feather seal which is a curved plate fits over the top of the weighted member and is trapped between nubs formed on the front and rear underside of the blade platform. The front face of the rim of the disk at the disk cavity is open ended and blocked off at the rear face. This assembly allows for individual blade removal and viewing from the rear face by removing a single rim cavity cover without disturbing the remaining components of the assembly. The inverted ring supports take up the axial loads alleviating the loads heretofore taken up by the TOBI rotor seal, allowing for a lighter weight installation.
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Brown Wesley D.
Hill Edward C.
Vercellone Peter T.
Friedland Norman
Powell Jr. Everette A.
United Technologies Corporation
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