TURBINE ENGINE MOUNTING BRACKET ASSEMBLY

A mounting bracket assembly (12) particularly suited for installation in an aircraft having outboard turbine engines (E) to isolate the aircraft cabin from engine noises. The bracket assembly (12) includes a base (13) fastened below the wing pylon and a pair of arms (20,21) extending in spaced paral...

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Bibliographic Details
Main Author HERBST,PAUL T
Format Patent
LanguageEnglish
Published 10.01.1990
Edition4
Subjects
AIRCRAFT
ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT
AVIATION
BLASTING
COSMONAUTICS
ENGINEERING ELEMENTS AND UNITS
EQUIPMENT FOR FITTING IN OR TO AIRCRAFT
FLYING SUITS
FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MEANS FOR DAMPING VIBRATION
MECHANICAL ENGINEERING
PARACHUTES
PERFORMING OPERATIONS
SHOCK-ABSORBERS
SPRINGS
STANDS OR SUPPORTS
THERMAL INSULATION IN GENERAL
TRANSPORTING
WEAPONS
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Summary:A mounting bracket assembly (12) particularly suited for installation in an aircraft having outboard turbine engines (E) to isolate the aircraft cabin from engine noises. The bracket assembly (12) includes a base (13) fastened below the wing pylon and a pair of arms (20,21) extending in spaced parallel relation below the base. The forward ends of the arms (20,21) are connected to the engine (E), and the aft ends are interconnected by a torque tube (22) which is resiliently fastened to the mounting bracket base (13) by an elastomeric bearing assembly (26). The elastomeric bearing assembly (26) includes a series of laminations of elastic (27,29,31) and inelastic (28,30) layers which extend along diametrically opposite upper and lower sides of the torque tube (22) to mount the arms (20,21) in resilient cantilever fashion to the base (13). The elastomeric bearing assembly (26) permits the arms (20,21) to rock about a pivot axis (A) through the torque tube (22) while accommodating other motions of the arms, such as vertical translations and relative angular displacements imposed under certain engine operating conditions.
Bibliography:Application Number: EP19880307229