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- Patents > 2009-03-05 > SECTION F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING > COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS > JET-PROPULSION PLANTS
ACTUATING DEVICE, BYPASS AIR BLEED SYSTEM EQUIPPED THEREWITH, AND TURBOJET ENGINE COMPRISING THESE
The actuating device for opening and closing at least one shutter in a gas turbine engine such as a turbojet engine, comprises at least one actuator made of a two-way shape memory alloy having a first stable state at a first given temperature (1, 3) in which state it actuates either the opening or the closing of the shutter, and a second stable state at a second given temperature (2, 4), in which state it actuates either the closing or the opening of the shutter, respectively.
Filed on: 2008-09-04; Application Number: 12204347