Aeronautics and astronautics – Aircraft power plants – Auxiliary
Patent
1996-12-20
1998-10-13
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft power plants
Auxiliary
B64D 4100
Patent
active
058200746
ABSTRACT:
The invention is directed to a deployment apparatus for an extendable ram air turbine of an aircraft. The ram air turbine is movable from a stowed inoperable position within the aircraft to a deployed and extended operable position externally of and in an airstream of the aircraft. The deployment apparatus includes an ejection member secured at one end to the aircraft and pivotally coupled to a non-extendable portion of a strut assembly. The non-extendable strut portion is pivotally secured at one end to the aircraft and receives at its other end in a telescoping manner one end of an extendable strut portion which has at its other end an air turbine driven power unit. An extendable strut portion control arrangement is responsive to a preset strut assembly deployed position and the presence of a predetermined power output level provided by the air turbine driven power unit to thereby ensure that the extendable strut and air turbine are extended only upon deployment of the strut assembly and activation of the air driven power unit.
REFERENCES:
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patent: 3451648 (1969-06-01), Pabst et al.
patent: 4630788 (1986-12-01), Veaux et al.
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patent: 4991796 (1991-02-01), Peters et al.
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patent: 5564903 (1996-10-01), Eccles et al.
Grant John David
Trommer William Charles
Barefoot Galen L.
Sundstrand Corporation
Williamson Harold A.
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