Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing
Patent
1993-01-22
1993-08-10
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Axially extending shroud ring or casing
416189, 4151701, F04D 2908
Patent
active
052343189
ABSTRACT:
A tip seal arrangement is provided for steam and gas turbines that allows the tip seals to be mounted on shrouds in such a way as to be easily replaceable while ensuring a minimum of contact between tenons and particles carried by leaking turbine fluid.
The invention is practiced by multiple segments that clip to the shrouds so as to provide a full circle with a stand-up radial seal that projects outwardly from the shroud to provide a small clearance with the stationary diaphragm or casing that surrounds the rotating blades with the individual segments being relatively easy to remove and replace.
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