Locking device for turbine blades

Details Locking device for turbine blades Locking device for turbine blades

2005-04-07

2008-10-28

Edgar, Richard A. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

C029S889210

Reexamination Certificate

active

07442011

ABSTRACT:
A turbine blade locking device axially retains a turbine blade (1) inserted in an axial, profiled slot (10) of a turbine disk (6). The turbine disk (6) is provided with a locking groove (8) passing through the slot (10) and extending radially in the plane of the turbine disk (6). A locking pin (4) is inserted in the locking groove (8) and the blade root (3) is provided at its bottom side with a notch (9) aligning with the locking groove (8). A portion of an elastic element (5) is arranged radially below the locking pin (4) to pre-load the locking pin (4) in a radially outward direction and into the notch (9).

REFERENCES:
patent: 2846183 (1958-08-01), Morgan
patent: 2912223 (1959-11-01), Hull
patent: 3986779 (1976-10-01), Beckershoff
patent: 4820127 (1989-04-01), Cohen et al.
patent: 5720596 (1998-02-01), Pepperman
patent: 1090231 (1961-03-01), None
patent: 1159964 (1964-07-01), None
patent: 2433043 (1975-12-01), None
patent: 980656 (1965-01-01), None

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