Annular platform for a nozzle of a low-pressure turbine of a...

Details Annular platform for a nozzle of a low-pressure turbine of a... Annular platform for a nozzle of a low-pressure turbine of a...

2006-02-28

2006-02-28

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

C415S191000, C415S211200

Reexamination Certificate

active

07004721

ABSTRACT:
An annular platform for the nozzle of a low-pressure turbine in a turbomachine, said nozzle having a longitudinal axis and comprising at least one fixed vane disposed downstream from at least one moving blade of a high-pressure turbine, said platform comprising a downstream portion supporting said fixed vane radially defining an aerodynamic channel which extends longitudinally between a leading edge of said fixed vane and a trailing edge of said moving blade, said platform further comprising an upstream portion extending longitudinally beyond the leading edge of said fixed vane towards the trailing edge of said moving blade so as to lengthen said aerodynamic channel.

REFERENCES:
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patent: 5217347 (1993-06-01), Miraucourt et al.
patent: 6227798 (2001-05-01), Demers et al.
patent: 6394749 (2002-05-01), Yu et al.
patent: 0 698 723 (1996-02-01), None

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