Aeronautics and astronautics – Aircraft power plants – Mounting
Reexamination Certificate
2007-12-03
2010-06-01
Ellis, Christopher P (Department: 3644)
Aeronautics and astronautics
Aircraft power plants
Mounting
C248S557000
Reexamination Certificate
active
07726602
ABSTRACT:
Arrangement for mounting a propulsive system on an aircraft airframe by an external pylon which connects the engine with the airframe, the pylon4comprising a plurality of spars intruding into the airframe and units for attaching the spars to the internal airframe structure, the cited units being dampers, shock absorbers or active actuators with characteristics chosen so that the units are particularly suited for the efficient reduction of attachment and internal dynamic loads arising mainly but not only from hard landing events and aircraft flight manoeuvres, and for damping sustained vibrations of the propulsive system-airframe assembly, the arrangement allowing the easy removal of the pylon4from the rest of the airframe and the interchangeability of the pylon4between different aircrafts, being also the cited arrangement tolerant to damage or complete failure of at least one of the spars.
REFERENCES:
patent: 4044923 (1977-08-01), Gardner
patent: 4821980 (1989-04-01), Clausen et al.
patent: 4854525 (1989-08-01), Chee
patent: 5064144 (1991-11-01), Chee
patent: 5065959 (1991-11-01), Bhatia et al.
patent: 5443229 (1995-08-01), O'Brien et al.
patent: 6938855 (2005-09-01), Marche
Airbus Espana S.L.
Ellis Christopher P
Ladas and Parry LLP
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