Retention capacity of a blade having an asymmetrical...

Details Retention capacity of a blade having an asymmetrical... Retention capacity of a blade having an asymmetrical...

2006-07-25

2006-07-25

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received by continuous circumferential channel

C416S216000, C416S22000A

Reexamination Certificate

active

07080974

ABSTRACT:
The invention relates to a bladed disk for a turbomachine, the disk including blades which extend into a conical stream and which are held in a peripheral groove of said disk by hammerhead type fasteners, each of said blades further including a platform whose radially-outer face defines the boundary of the gas flow stream and whose radially-inner face presents an upstream rib and a downstream rib disposed in planes that are perpendicular to the axis of rotation of said disk and that are radially adjacent respectively to an upstream ring and a downstream ring formed at the periphery of said disk on either side of said groove in order to provide leaktightness in these zones, wherein the thickness of the downstream rib in the axial direction is greater than the thickness of the upstream ring.

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patent: 5622475 (1997-04-01), Hayner et al.
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patent: 0 530 097 (1993-03-01), None
patent: 0 921 272 (1999-06-01), None
patent: 2 812 906 (2002-02-01), None

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