Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Patent
1997-08-13
1999-04-06
Ryznic, John E.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
277303, 277420, F01D 520, F01D 1108, F03B 1100
Patent
active
058908730
ABSTRACT:
A labyrinth bucket tip to stator segment seal is provided. The bucket cover includes radially outwardly projecting labyrinth teeth while the fixed segment contains radially inwardly projecting labyrinth teeth. The teeth are arranged in groups thereof with end teeth or repeating patterns of groups lying in radial registration with one another while teeth between the end teeth are radially misaligned to provide a vernier type arrangement. The inner teeth groups have reduced radial clearance relative to conventional practice. End teeth are provided for each array of teeth which project beyond the gap between the tips of the groups of teeth to form a conventional seal with radially opposing lands and conventional radial clearance. This design results in an improved labyrinth bucket tip seal having reduced leakage and minimal risk of performance deterioration due to rubs.
REFERENCES:
patent: 1505647 (1924-08-01), Junggren
patent: 3085809 (1963-04-01), Cooper
patent: 4420161 (1983-12-01), Miller
"Thirty Years Experience with Integrally Shrouded Blades" Neumann et al.; 1989 Joint Power Generation Conference, Dallas, Texas.
General Electric Co.
Ryznic John E.
LandOfFree
Labyrinth seal for a turbine bucket cover does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Labyrinth seal for a turbine bucket cover, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Labyrinth seal for a turbine bucket cover will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1365134