Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1997-06-09
1999-03-30
Denion, Thomas E.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
415115, 415116, 416219R, 416 95, F01D 508
Patent
active
058880496
ABSTRACT:
A gas turbine engine rotor disc (20) is provided with a plurality of cooling air supply passages (32) which are generally radially extending but are inclined in the downstream direction. Each passage (32) has a cross-sectional configuration which renders the ends (34) of the passages (32) less likely than normal to act as the site of hoop-stress induced cracks.
REFERENCES:
patent: 3014269 (1961-12-01), Graham et al.
patent: 3918835 (1975-11-01), Yamarik et al.
patent: 4344738 (1982-08-01), Kelly et al.
patent: 4626169 (1986-12-01), Hsing et al.
patent: 4923371 (1990-05-01), Ben-Amoz
patent: 5700130 (1997-12-01), Barbot et al.
Avery Peter
Broadhead Peter
Hoptroff John
Denion Thomas E.
Rolls-Royce plc
Taltavull W. Warren
Woo Richard
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