Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing
Patent
1983-05-10
1985-01-08
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Axially extending shroud ring or casing
416215, F01D 530
Patent
active
044925212
ABSTRACT:
An aerofoil blade/disc assembly suitable for the compressor or turbine of a gas turbine engine comprising a rotor disc which has a circumferential, part-circular cross-section channel provided in its periphery for the reception of the correspondingly part-circular cross-section roots of an annular array of aerofoil blades. The arrangement is such that upon disc rotation, the aerofoil blades pivot with respect thereto until their platforms sealingly engage a circumferential radially extending flange provided on the disc periphery. A seal is provided between the aerofoil blades and the disc which reduces the leakage of gases between the aerofoil blade roots and their retaining channel.
REFERENCES:
patent: 1891948 (1932-12-01), Rice
patent: 2414278 (1947-01-01), Soderberg
patent: 2683018 (1954-07-01), Schorner
patent: 2936155 (1960-05-01), Howell et al.
patent: 3053504 (1962-09-01), Shelley
patent: 3073569 (1963-01-01), Wagner
patent: 3584971 (1971-06-01), Ortolano
patent: 3610772 (1971-10-01), Wagle
patent: 3881844 (1975-05-01), Hennessey et al.
patent: 4415310 (1983-11-01), Bouiller et al.
Brett Clive E.
Pask George
Powell Jr. Everette A.
Rolls-Royce Limited
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