Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Patent
1989-11-22
1991-10-08
Kwon, John T.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
415126, F01D 1108
Patent
active
050549979
ABSTRACT:
A clearance control apparatus has a positioning mechanism for controlling clearance between rotor blade tips and a shroud segment of a gas turbine engine casing. The positioning mechanism is supported by the casing, coupled to the shroud segment, and actuatable for moving the shroud segment toward and away from the rotor blade tips to reach a position at which a desired clearance is established. The mechanism includes a shaft and a bellcrank actuating assembly. The shaft is mounted through a passage defined by a mounting structure on the casing for radial movement along a longitudinal axis of the shaft toward and away from the rotor axis and is coupled at its inner end to the shroud segment. The bellcrank actuating assembly is coupled to an outer end of the shaft and mounted to the casing adjacent the shaft for pivotal movement about an axis spaced from and extending transverse to the longitudinal axis of the shaft. The pivotal movement of the bellcrank actuating assembly produces radial movement of the shaft and shroud segment therewith toward and away from the rotor blade tips.
REFERENCES:
patent: 3039737 (1962-06-01), Kothoff, Jr.
patent: 3062497 (1962-11-01), Howes et al.
patent: 3085398 (1963-04-01), Ingleson
patent: 3520635 (1970-07-01), Killmann et al.
patent: 3623736 (1971-11-01), Petrie et al.
patent: 3966354 (1974-12-01), Patterson
patent: 4005946 (1975-06-01), Brown et al.
patent: 4050843 (1977-09-01), Needham et al.
patent: 4230436 (1980-10-01), Dauson
patent: 4264274 (1981-04-01), Benedict
patent: 4330234 (1982-05-01), Colley
patent: 4332523 (1982-06-01), Smith
patent: 4343592 (1982-08-01), May
patent: 4384819 (1983-05-01), Baker
patent: 4419044 (1983-12-01), Barry et al.
patent: 4632635 (1986-12-01), Thoman et al.
patent: 4657479 (1987-04-01), Brown et al.
patent: 4683716 (1987-08-01), Wright et al.
patent: 4714404 (1987-12-01), Lardellier
patent: 4773817 (1988-09-01), Stangalini
Technical Report Afapl-TK-79-2087, entitled "Thermal Response Turbine Shroud Study" by E. J. Kawecki of Pratt & Whitney; Jul. 1979.
Corsmeier Robert J.
Petsche Joseph
General Electric Company
Kwon John T.
Squillaro Jerome C.
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