Outer casing for a turbomachine fan conduit

The engine (10) has an external cylindrical cover (20) i.e. outer fan duct, mounted in downstream of an intermediate hood (16) and externally defining an annular space discharging a flow around the engine. The cover has a trellis framework (30) and detachable shielding plates (32) that are fixed at...

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Main Authors DERENES, JACKY RAPHAEL MICHEL, REGARD, SEBASTIEN, DIJOUD, DELPHINE, EDITH
Format Patent
LanguageEnglish
French
German
Published 11.02.2009
Subjects
BLASTING
COMBUSTION ENGINES
ENGINE PLANTS IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
JET-PROPULSION PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Summary:The engine (10) has an external cylindrical cover (20) i.e. outer fan duct, mounted in downstream of an intermediate hood (16) and externally defining an annular space discharging a flow around the engine. The cover has a trellis framework (30) and detachable shielding plates (32) that are fixed at the framework. The framework has an upstream annular fixation plate (34) and a downstream annular connection plate (36) that are connected with each other by inclined and longitudinal rigid beams (42, 46). The rigid beam (42) is inclined with respect to axis (44). Turboréacteur à double flux (10), comprenant une enveloppe cylindrique (20) délimitant extérieurement un espace annulaire d'écoulement d'un flux secondaire (28), caractérisé en ce que l'enveloppe cylindrique (20) est formée d'une ossature en treillis (30) et de panneaux de carénage amovibles (32) fixés sur l'ossature, celle-ci comprenant une bride annulaire amont (34) de fixation à un carter intermédiaire (16), une bride annulaire aval (36) de liaison à un carter d'échappement, et des poutres rigides (42, 46) parallèles ou inclinées par rapport à l'axe (44) du turboréacteur, reliant les deux brides (34, 36) entre elles.
Bibliography:Application Number: EP20080159832