Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Erodable or permanently deformable
Patent
1986-12-03
1988-08-30
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Erodable or permanently deformable
415170R, F01D 1102
Patent
active
047672676
ABSTRACT:
A seal assembly for reducing fluid leakage around a circumferential periphery of an annular nozzle stage in a gas turbine engine includes an abradable annular steel member having an annular attachment ring attached to an outer surface, the ring including a radially extending flange portion. The side of the seal member opposite the attachment ring forms a conventional labyrinth seal with a rotating member extending from a turbine wheel. The nozzle stage includes an annular portion extending inward towards the seal member and having an axially facing area for abutting the attachment ring. The member depending from the nozzle stage in conjunction with the attachment ring forms a radially slidable seal. Tabs are provided attached to one side of the seal member for engaging the depending member from the nozzle stage for holding the seal member in sliding contact against the nozzle stage. The radial sliding relationship between the seal assembly and the nozzle stage permits differential radial movement between the attachment ring and the nozzle stage to thereby maintain the sealing relationship under differential operating temperatures.
REFERENCES:
patent: 3018085 (1962-01-01), Welsh
patent: 3046648 (1962-07-01), Kelly
patent: 3079128 (1963-02-01), Burge
patent: 3343806 (1967-09-01), Bobo et al.
patent: 3365173 (1968-01-01), Lynch et al.
patent: 3423070 (1969-01-01), Corrigan
patent: 3558237 (1971-01-01), Wall, Jr.
patent: 3603599 (1971-09-01), Laird
patent: 3694882 (1972-10-01), Desmond
patent: 3829233 (1974-08-01), Scalzo et al.
patent: 3880435 (1975-04-01), Thornbald
patent: 3941500 (1976-03-01), Glenn
patent: 3990807 (1976-11-01), Sifford
patent: 4087199 (1978-05-01), Hemsworth et al.
patent: 4177004 (1979-12-01), Riedmiller et al.
patent: 4239451 (1980-12-01), Bouru
patent: 4247248 (1981-01-01), Chaplin et al.
patent: 4251185 (1981-02-01), Karstensen
patent: 4295785 (1981-10-01), Lardellier
patent: 4354687 (1982-10-01), Holland et al.
patent: 4449714 (1984-05-01), Meier
patent: 4507052 (1985-03-01), Thompson
patent: 4645424 (1987-02-01), Peters
patent: 4655683 (1987-04-01), Chaplin
Abbott David R.
Korzun Ronald W.
Salt Jonathan G. L.
Conte Francis L.
Garrett Robert E.
General Electric Company
Kwon John T.
Lawrence Derek P.
LandOfFree
Seal assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Seal assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seal assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2085019