Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Blade received by continuous circumferential channel
Patent
1995-09-11
1996-11-19
Larson, James
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Blade received by continuous circumferential channel
416219R, F01D 530
Patent
active
055756239
ABSTRACT:
In a drum rotor (1) for an axial-flow turbomachine, the blades are fastened with their roots (3) in rows in encircling blade grooves (10) having lateral supporting prongs. At least the first blade groove (10), on the inlet side of the working medium, is shaped in an axially asymmetrical manner by a plurality of radii (R1-R4). The preceding radius (R1) in each case is larger than the following radius (R2), and the circular arcs (21-24) formed by the radii (R1-R4) have a common tangent (T) at their contact points.
REFERENCES:
patent: 5236308 (1993-08-01), Czeratzki
patent: 5474423 (1995-12-01), Seeley et al.
Christensen Flemming
Nguyen Uy-Liem
ABB Management AG
Larson James
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