Double-walled duct assembly for aircraft anti-icing conduit syst

Details Double-walled duct assembly for aircraft anti-icing conduit syst Double-walled duct assembly for aircraft anti-icing conduit syst

1996-06-17

1999-12-21

Grant, William

Aeronautics and astronautics

Aircraft structure

Ice prevention

2395871, 285300, 285302, B64D 1504

Patent

active

060038144

ABSTRACT:
Disclosed is a duct assembly for conducting compressed air from a fixed component to a component that is movable with respect to the fixed component. The duct assembly contains at least two telescoping, tubular conduit sections with seals between adjacent sections. An upstream transitional joint rotatably interconnects the outermost conduit section with an air supply duct, while a downstream transitional joint rotatably interconnects the innermost conduit section with an air delivery duct. A tubular double-wall spaced apart from the inner surface of the innermost conduit section forms an annular airspace between the tubular double-wall and the innermost conduit section. A second double-wall forms a second annular airspace between its downstream end and the upstream transitional joint. The annular airspaces created by the double-walls protect the seals.

REFERENCES:
patent: 1513315 (1924-10-01), Cook
patent: 3495630 (1970-02-01), Hansen et al.
patent: 4543677 (1985-10-01), Haglund et al.
patent: 4615499 (1986-10-01), Knowler
patent: 4652020 (1987-03-01), Gilroy
patent: 4674714 (1987-06-01), Cole et al.
patent: 4757963 (1988-07-01), Cole
patent: 5400984 (1995-03-01), Arnold et al.

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