Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Turbo machine
Reexamination Certificate
2006-11-14
2006-11-14
Kershteyn, Igor (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Turbo machine
C416S21400A
Reexamination Certificate
active
07134843
ABSTRACT:
A turbine wheel for a turbomachine, the disk of which comprises upstream and downstream ribs extending in the annular direction around an axis, each blade segment installed on the disk being retained by the disk in an external radial direction using upstream engagement part forming part of the segment root and cooperating with complementary upstream engagement part forming an external radial end of the upstream rib, and downstream engagement part forming part of the root and capable of cooperating with complementary downstream engagement part forming an external radial end of the downstream rib. Furthermore, the upstream and downstream ribs are movable from a separated engagement position to a close position, and vice versa, so that each blade segment can be assembled on the turbine disk.
REFERENCES:
patent: 819106 (1906-05-01), Wilkinson
patent: 2401826 (1946-06-01), Halford
patent: 2857132 (1958-10-01), McDowall
patent: 3281116 (1966-10-01), Keenan
patent: 4415310 (1983-11-01), Bouiller et al.
patent: 5174720 (1992-12-01), Gradl
patent: 1 247 335 (1967-08-01), None
Kershteyn Igor
Snecma Moteurs
LandOfFree
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