Decoupled ducting for twin-engine reaction rotor drive

Details Decoupled ducting for twin-engine reaction rotor drive Decoupled ducting for twin-engine reaction rotor drive

2006-06-20

2009-12-01

Carone, Michael (Department: 3641)

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and helicopter sustained

C244S062000, CD12S327000

Reexamination Certificate

active

07624942

ABSTRACT:
An engine system for an aircraft capable of operating in a helicopter-type flight mode and a fixed-wing flight mode and is capable of transitioning between those flight modes while in-flight includes first and second engines, and a ducting assembly. The ducting assembly includes a first exhaust subassembly in fluid communication with the first engine and a second exhaust subassembly in fluid communication with the second engine. The first exhaust subassembly permits fluid transfer substantially independent of fluid transfer within the second exhaust subassembly.

REFERENCES:
patent: 3792827 (1974-02-01), Girard
patent: 5454530 (1995-10-01), Rutherford et al.
patent: 7014142 (2006-03-01), Barocela et al.
patent: 7275711 (2007-10-01), Flanigan
patent: 7412825 (2008-08-01), Muylaert
Official Search Report of the European Patent Office in counterpart foreign Application No. 07252470.5-2422 filed Jun. 18, 2007.
Office Action dated Oct. 22, 2008, from the European Patent Office in counterpart foreign Application No. 07 252 470.5, filed Jun. 18, 2007.

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