Aerodynamic fastener shield for turbomachine

Details Aerodynamic fastener shield for turbomachine Aerodynamic fastener shield for turbomachine

2007-07-31

2007-07-31

Kim, Ted (Department: 3746)

Power plants

Combustion products used as motive fluid

Having mounting or supporting structure

C415S112000, C415S116000, C060S039830

Reexamination Certificate

active

10941213

ABSTRACT:
A fastener shield for use in a fluid flow path within a gas turbine engine for reducing fluid drag and heating generated by fluid flow over a plurality of circumferentially spaced fasteners. The fastener shield has a radially-extending, downstream-facing mounting flange with a plurality of circumferentially spaced bolt holes positioned to receive respective engine mounting bolts therethrough and to attach the mounting flange to elements of the turbine engine. A curved, upstream-facing fastener shield cover is positioned in spaced-apart relation to the mounting flange for at least partially covering and separating an exposed, upstream-facing portion of the bolts from the fluid flow to thereby reduce drag and consequent heating of the bolts.

REFERENCES:
patent: 4190397 (1980-02-01), Schilling et al.
patent: 4320903 (1982-03-01), Ayache et al.
patent: 4662821 (1987-05-01), Kervistin et al.
patent: 4668163 (1987-05-01), Kervistin
patent: 4904156 (1990-02-01), Touze
patent: 5090865 (1992-02-01), Ramachandran et al.
patent: 5118253 (1992-06-01), Balkcum, III
patent: 7094020 (2006-08-01), Dong et al.

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