Guide system for nacelle assembly
A guide system for translating components of an aircraft engine nacelle includes a track assembly and a slider assembly. The track assembly includes a track guide member having a track channel. The slider assembly translatably engages the track assembly. The slider assembly includes a slider body configured to be received within the track channel. The slider assembly further includes a slider arm member pivotably coupled to the slider body with a hinge joint disposed within the track channel. The slider arm member extends from the body portion and outwardly of the track assembly. Associated apparatuses are also provided.
1. A guide system for translating components of an aircraft engine nacelle, the guide system comprising:
a track assembly adapted to operably engage a first portion of a nacelle, the track assembly comprising a track guide member having a track channel; and
a slider assembly configured to translatably engage the track assembly, the slider assembly comprising a slider body configured to be received within the track channel, the slider assembly further comprising a slider arm member pivotably coupled to the slider body with a hinge joint disposed within the track channel, the slider arm member extending from the a portion of the slider body and outwardly of the track assembly.
2. The guide system according to claim 1 wherein the slider arm member comprises a plurality of spaced-apart annular members, each annular member defining a slider arm aperture, the annular members being arranged in serial alignment such that the slider arm apertures are aligned along a longitudinal axis of the slider arm member, and the slider body comprises a plurality of spaced-apart annular portions, each annular portion defining a slider body aperture, the annular portions being arranged in serial alignment such that the slider body apertures are aligned along a longitudinal axis of the slider body, each annular member of the slider arm member being configured for positioning between a pair of adjacent annular portions of the slider body such that the slider arm apertures and the slider body apertures are aligned along a longitudinal axis of the slider assembly to define a hinge bore, the slider assembly further comprising a hinge pin configured to be received in the hinge bore so as to hingedly couple the slider body to the slider arm member.
3. The guide system according to claim 1 wherein the track assembly further comprises at least one track liner member operably engaged with the track guide member about the track channel.
4. The guide system according to claim 1 wherein the track assembly further comprises first and second track liner members operably engaged with the track guide member in opposing relationship within first and second channel portions, respectively, of the track channel.
5. The guide system according to claim 1 wherein the slider arm member of the slider assembly extends outwardly of the track assembly via a slot defined by the track guide member, the slot being configured to permit rotation therewithin of the slider arm member substantially between about +/−5 degrees of a longitudinal axis of the track guide member.
6. The guide system according to claim 1 wherein the track assembly further comprises at least one track bearing layer operably engaged with the at least one track liner member about an interior surface thereof, the at least one track bearing layer being comprised of a low friction bearing material.
7. The guide system according to claim 1 wherein the slider assembly further comprises at least one slider bearing layer operably engaged with the slider body about an exterior surface portion thereof, the at least one slider bearing layer being comprised of a low friction bearing material.
8. The guide system according to claim 1 wherein the at least one track liner member is removably engaged with the track guide member.
9. A nacelle for a turbofan aircraft engine, the nacelle comprising:
a first nacelle portion;
a track assembly adapted to operably engage the first nacelle portion, the track assembly comprising a track guide member having a track channel;
a slider assembly configured to translatably engage the track assembly, the slider assembly comprising a slider body configured to be received within the track channel, the slider assembly further comprising a slider arm member pivotably coupled to the slider body with a hinge joint disposed within the track channel, the slider arm member extending from the a portion of the slider body and outwardly of the track assembly; and
a second nacelle portion operably engaged with the slider arm member of the slider assembly.
10. The nacelle according to claim 9 wherein the slider arm member comprises a plurality of spaced-apart annular members, each annular member defining a slider arm aperture, the annular members being arranged in serial alignment such that the slider arm apertures are aligned along a longitudinal axis of the slider arm member, and the slider body comprises a plurality of spaced-apart annular portions, each annular portion defining a slider body aperture, the annular portions being arranged in serial alignment such that the slider body apertures are aligned along a longitudinal axis of the slider body, each annular member of the slider arm member being configured for positioning between a pair of adjacent annular portions of the slider body such that the slider arm apertures and the slider body apertures are aligned along a longitudinal axis of the slider assembly to define a hinge bore, the slider assembly further comprising a hinge pin configured to be received in the hinge bore so as to hingedly couple the slider body to the slider arm member.
11. The nacelle according to claim 9 wherein the track assembly further comprises at least one track liner member operably engaged with the track guide member about the track channel.
12. The nacelle according to claim 9 wherein the track assembly further comprises first and second track liner members operably engaged with the track guide member in opposing relationship within first and second channel portions, respectively, of the track channel.
13. The nacelle according to claim 9 wherein the slider arm member of the slider assembly extends outwardly of the track assembly via a slot defined by the track guide member, the slot being configured to permit rotation therewithin of the slider arm member substantially between about +/−5 degrees of a longitudinal axis of the track guide member.
14. The nacelle according to claim 9 wherein the track assembly is translatable with respect to the slider assembly.
15. The nacelle according to claim 14 wherein the first nacelle portion is one of a translatable variable area fan nozzle section and a translatable thrust reverser sleeve.
16. The nacelle according to claim 9 wherein the slider assembly is translatable with respect to the track assembly.
17. The nacelle according to claim 16 wherein the second nacelle portion is one of a translatable variable area fan nozzle section and a translatable thrust reverser sleeve.
18. A nacelle for a turbofan aircraft engine, the nacelle comprising:
a stationary first nacelle portion;
a stationary track assembly operably engaged with the stationary first nacelle portion, the track assembly comprising a track guide member having a track channel;
means for slidably engaging one of a translatable variable area fan nozzle section and a translatable thrust reverser sleeve to the stationary track assembly;
means for pivoting, within the track channel, the means for slidably engaging the one of a translatable variable area fan nozzle section and a translatable thrust reverser sleeve to the stationary track assembly; and
means for actuating the means for slidably engaging the one of the translatable variable area fan nozzle section and the translatable thrust reverser sleeve.
19. The nacelle according to claim 18 wherein the means for slidably engaging the one of the translatable variable area fan nozzle section and the translatable thrust reverser sleeve comprises a slider assembly configured to slidably engage the track assembly, the slider assembly comprising a slider body configured to be received within the track channel, the slider assembly further comprising a slider arm member pivotably coupled to the slider body with a hinge joint disposed within the track channel, the slider arm member extending from the slider body and outwardly of the track assembly, and the slider arm member being operably engaged with the one of the translatable variable area fan nozzle section and the translatable thrust reverser sleeve.
20. The nacelle according to claim 19 wherein the means for pivoting, within the track channel, the means for slidably engaging the one of the translatable variable area fan nozzle section and the translatable thrust reverser sleeve to the stationary track assembly comprises a plurality of spaced-apart annular members formed on the slider arm member, each annular member defining a slider arm aperture, the annular members being arranged in serial alignment such that the slider arm apertures are aligned along a longitudinal axis of the slider arm member, and the slider body comprises a plurality of spaced-apart annular portions, each annular portion defining a slider body aperture, the annular portions being arranged in serial alignment such that the slider body apertures are aligned along a longitudinal axis of the slider body, each annular member of the slider arm member being configured for positioning between a pair of adjacent annular portions of the slider body such that the slider arm apertures and the slider body apertures are aligned along a longitudinal axis of the slider assembly to define a hinge bore, the slider assembly further comprising a hinge pin configured to be received in the hinge bore so as to hingedly couple the slider body to the slider arm member.