Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing
Patent
1990-11-21
1992-09-08
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Axially extending shroud ring or casing
416217, 416230, F01D 522, F01D 530
Patent
active
051453193
ABSTRACT:
An axial flow turbomachine rotor comprises a disc having a plurality of annular flanges extending outwardly from its periphery, a plurality of blades secured to the disc and extending radially outwardly from the periphery thereof, each of the blades having its root notched to define heels which are received in the grooves formed between the annular flanges of the disc, and a plurality of separate platforms which are secured to the disc and are disposed between the blades to define the inner boundary of the fluid flow path through the rotor, the blades each being fixed to the disc by two parallel pins which are equidistance from the axis of the disc and are received in corresponding bores passing through the annular flanges and the heels of the blade, the pins also serving to secure the platforms to the disc.
REFERENCES:
patent: 2326145 (1943-08-01), Kroon
patent: 2514408 (1950-07-01), Mierley
patent: 2928653 (1960-03-01), Robertson
patent: 2999668 (1961-09-01), Howald et al.
patent: 3694104 (1972-09-01), Erwin
patent: 3860361 (1975-11-01), McMurtry et al.
patent: 4361416 (1982-11-01), Rossmann
patent: 4460316 (1984-07-01), Partington
patent: 4621979 (1986-11-01), Zipps et al.
patent: 4696623 (1987-09-01), Bost
Larson James A.
Look Edward K.
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
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