Device for axially securing moving blades and for eliminating ro

Details Device for axially securing moving blades and for eliminating ro Device for axially securing moving blades and for eliminating ro

1994-01-13

1995-06-20

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

With weight-balancing means

416220R, 416221, F01D 526

Patent

active

054256216

ABSTRACT:
A device for axially securing a moving blade and for eliminating rotor unbalances is provided. The moving blade has a blade base. A wheel disk has circumferentially distributed axial grooves. The blade base is anchored in one of the axial grooves wherein the axial groove encloses an indentation formed between a bottom of the axial groove and an end of the blade base. A filler piece operatively arranged on the bottom of the axial groove, and a securing plate having two ends, are insertable into the indentation. The securing plate is arranged to bridge a gap formed between the end of the blade base and the filler piece along an axial length of the indentation with the two ends projecting beyond the indentation. The securing plate is bent at each of its two ends in a mutually opposite manner with respect to end faces of the filler piece, wheel disk and blade base. One rotor unbalance of the blade is compensated by at least one filler piece.

REFERENCES:
patent: 2843356 (1958-07-01), Hull, Jr.
patent: 3076634 (1963-02-01), Boyle et al.
patent: 3653781 (1972-04-01), Cooper
patent: 4102602 (1978-07-01), Rottenkolber
patent: 4477226 (1984-10-01), Carreno
patent: 4898514 (1990-02-01), McCracken

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