Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1998-10-27
2000-05-23
Verdier, Christopher
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 95, 416 96R, 416220R, 415115, F01D 518, F01D 904
Patent
active
060659327
ABSTRACT:
A turbine (10) for a gas turbine engine includes an annular array of turbine aerofoil blades (12) which are mounted on a disc (19). Each of the aerofoil blades (12) is provided with a radially inner platform (21). Each platform (21) includes a passage (37) into which leaked cooling air flows. The passages (37) are disposed in a direction having a circumferential component so that cooling air is exhausted from them in a direction that is generally opposite to that in which the disc (19) operationally rotates.
REFERENCES:
patent: 4453888 (1984-06-01), Hovan et al.
patent: 5800124 (1998-09-01), Zelesky
Rolls-Royce plc
Taltavull W. Warren
Verdier Christopher
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