Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1991-08-28
1993-07-06
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 53, 4151735, 4151745, F16J 15447
Patent
active
052247139
ABSTRACT:
A labyrinth seal for use in a gas turbine engine and placed between adjacently lying differently pressurized compartments where leakage may occur from the higher to the lower pressure compartment, the seal includes a stationary annular abradable shroud and a rotor with teeth and with channels formed between adjacent teeth, a pumping passage formed in the rotor for supplying an additional pressure component during rotation from the lower pressure compartment into the channel lying between the last pair of teeth downstream toward the lower pressure compartment.
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Cuchlinski Jr. William A.
Cummings Scott W.
General Electric Company
Rafter John R.
Squillaro Jerome C.
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