Device for axial securing of blade feet of a gas turbine disk

Details Device for axial securing of blade feet of a gas turbine disk Device for axial securing of blade feet of a gas turbine disk

1983-04-07

1984-09-11

Marcus, Stephen

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416219R, F01D 532

Patent

active

044707568

ABSTRACT:
The device has two ring segments (13) held in a circumferential score (11) provided in one edge of the upper surface (8) of the rotor disk. These ring segments consist of a portion of a cylindrical band (17) on whose edges are provided two collars (18, 19) of unequal thickness. The thicker collar (18) is placed between the upper wall of the transverse score (7) made in the projection (6) and the upper wall (8) of the rotor (1). The cylindrical band (17) works in conjunction with the bottom of the circumferential score (11). The thinnest collar (19) leans against the upper wall of the groove. The two segments placed end to end leave between them a space corresponding to the width of one axial notch. By displacing the ring segments in the score, the space is brought opposite the blade to be changed. The locking ring has two pins (21) which engage between the ends of the ring segments and block them in position. Other types of applications are described.

REFERENCES:
patent: 3023998 (1962-03-01), Sanderson
patent: 3096074 (1963-07-01), Pratt
patent: 3397865 (1968-08-01), Catlow
patent: 3936234 (1976-02-01), Tucker et al.
patent: 4349318 (1982-09-01), Libertini et al.
patent: 4405285 (1983-09-01), Surdi

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