Blade outer seal with micro axial flow cooling system

Details Blade outer seal with micro axial flow cooling system Blade outer seal with micro axial flow cooling system

2007-12-11

2007-12-11

Nguyen, Hoang (Department: 3748)

Rotary kinetic fluid motors or pumps

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

C415S116000, C415S173100

Reexamination Certificate

active

11025172

ABSTRACT:
A turbine blade outer air seal assembly includes a hot side exposed to a combustion hot gas flow, and a back side that is exposed to a supply of cooling air. The outer air seal segment includes a trailing edge cavity and a leading edge cavity separated by a divider. The cavities are feed cooling air through a plurality of inlet openings disposed transverse to the gas flow. The cooling air enters the cavities and flows toward a plurality of outlets at the leading edge and a plurality of outlets along the trailing edge. A plurality of pedestals within each of the cavities disrupts cooling air flow to increase heat absorption capacity and to increase the surface area capable of transferring heat from the hot side.

REFERENCES:
patent: 4573866 (1986-03-01), Sandy et al.
patent: 5375973 (1994-12-01), Sloop et al.
patent: 5486090 (1996-01-01), Thompson et al.
patent: 5584651 (1996-12-01), Pietraszkiewicz et al.
patent: 6139257 (2000-10-01), Proctor et al.
patent: 6368054 (2002-04-01), Lucas

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