F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
F15B 11/036 (2006.01) B64C 13/36 (2006.01) F41H 5/06 (2006.01)
Patent
CA 2650292
A hydraulic actuator has an armored section having concentric cylinders and an unarmored section having a cylinder with a frangible piston and a frangible upper gland nut. The hydraulic actuator may have leakage vents adapted to prevent leakage between hydraulic systems used to power the cylinders. The hydraulic actuator also may have a gland seal for sealing an end of the cylinder of the unarmored section and a sensing port adapted for allowing detection of fluid leaking due to damage of the gland seal.
L'invention concerne un actionneur hydraulique comprenant une section armée qui possède des cylindres concentriques et une section non armée qui possède un cylindre à piston frangible et un écrou libre supérieur frangible. L'actionneur hydraulique peut comprendre des évents de fuite conçu pour prévenir les fuites entre les systèmes hydrauliques utilisés pour alimenter les cylindres. Il peut également comprendre un presse-étoupe destiné à étanchéifier une extrémité du cylindre de la section non armée et un orifice de détection conçu de manière à permettre la détection de fuite de fluide due à des dommages du presse-étoupe.
Barber John R. Jr.
Fenny Carlos A.
Ross Brent C.
Bell Helicopter Textron Inc.
Hill & Schumacher
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