Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing
Patent
1992-07-16
1993-03-16
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Axially extending shroud ring or casing
416219R, 416244R, 416241R, 416248, F01D 522
Patent
active
051939827
ABSTRACT:
A separate inter-blade platform for a bladed rotor disk of a turbo-machine comprises a first part in the form of a four-sided frame of generally trapezoidal shape and made of a laminated material, the frame having smaller and larger ends for location on the upstream and downstream sides respectively of the rotor disk, and two lateral sides interconnecting said ends for location between successive blades of the rotor, and a second part made of a relatively flexible and self-adhesive material of the polyurethane type attached to the first part, the second part defining a plate capping the frame over the greater part of its two lateral sides and leaving the smaller and larger end portions free, a portion enclosing the two lateral sides of the frame in line with the plate, and a plurality of evenly spaced, transverse reinforcing ribs which are integral with said enclosing portion and the underside of the plate.
REFERENCES:
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patent: 2873088 (1959-02-01), Neumann
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patent: 3640640 (1972-02-01), Palfreyman
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patent: 3712757 (1973-01-01), Goodwin
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patent: 5049035 (1991-09-01), Marlin
Inizan Gerard F.
Jourdain Gerard E. A.
Pabion Philippe
Payen Jean-Michel
Ruffier Christine J. G.
Look Edward K.
Sgantzos Mark
Societe Nationale d'Etude et de Construction de Moteurs D'Aviati
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