Axial locking device for turbine blades

Details Axial locking device for turbine blades Axial locking device for turbine blades

2007-12-18

2007-12-18

Edgar, Richard A. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

C416S20400A, C416S248000

Reexamination Certificate

active

11443475

ABSTRACT:
A turbine blade locking device for axial retention of a turbine blade (1) having a blade root (3) inserted in an axially extending profiled lobe slot (5) of a turbine disk (4), wherein, a sealing fin of a blade platform (10) includes, over part of its axial length, a retaining groove (6) featuring a semicircular cross-section, a disk lobe (7) of the turbine disk (4) is provided with a semi-spherical recess (8), and a ball (2) is fitted into the recess (8) and the retaining groove (6).

REFERENCES:
patent: 2846183 (1958-08-01), Morgan
patent: 3759633 (1973-09-01), Tournere
patent: 3853425 (1974-12-01), Scalzo et al.
patent: 22 00 515 (1972-07-01), None
patent: 44 41 233 (1996-05-01), None
patent: 9 76 790 (1951-03-01), None

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