Blade tip shroud with circular grooves

Details Blade tip shroud with circular grooves Blade tip shroud with circular grooves

2011-08-02

2011-08-02

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between blade edge and static part

C415S115000, C415S173400, C415S176000, C415S178000

Reexamination Certificate

active

07988410

ABSTRACT:
A blade tip shroud segment for a gas turbine engine in which the shroud segment is cooled and sealed using a combination of vortex cooling air flow and cooling air discharge film cooling. The shroud segment includes a row of vortex chambers formed within the shroud segment and a row of circumferential circular grooves formed on the hot gas flow surface of the shroud segment, where each groove is connected to a vortex chamber through a slot. Cooling air is to the vortex chambers from individual cooling air feed slots or through inter-linking channels connecting adjacent vortex chambers.

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