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US 10,598,129 B2Granted
Fragmenting nozzle system
AssigneeAerojet Rocketdyne, Inc.
InventorDouglass McPherson, Sr.
Life of this patent
Estimating the term…
Abstract
A fragmenting nozzle system includes a first nozzle at least partially disposed within a second nozzle. The first nozzle includes an ablative shell, a syntactic foam support disposed between the ablative shell and the second nozzle, and an ignition system disposed at least partially within the syntactic foam support. For example, the ignition system is operable to generate a controlled-energy deflagration pressure wave that fragments the first nozzle but not the second nozzle.
Claims20
A fragmenting nozzle system comprising:
- a first nozzle at least partially disposed within a second nozzle,
- the first nozzle including an ablative shell, a syntactic foam support disposed between the ablative shell and the second nozzle, and an ignition system disposed at least partially within the syntactic foam support.
A fragmenting nozzle system comprising:
- inner and outer convergent-divergent nozzles, the inner convergent-divergent nozzle lining an interior of the outer convergent-divergent nozzle and defining an initial nozzle throat geometry;
- and
- an ignition system operable to trigger a controlled-energy deflagration pressure wave across the inner and outer convergent-divergent nozzles,
- the inner convergent-divergent nozzle being formed of a fragmenting material with respect to the deflagration pressure wave and the outer convergent-divergent nozzle being formed of a fragment-resistant material with respect to the deflagration pressure wave such that upon triggering of the deflagration pressure wave, the inner convergent-divergent nozzle fragments and exposes a secondary, different nozzle throat geometry of the outer convergent-divergent nozzle.
1 more element
A fragmenting nozzle system comprising:
- inner and outer convergent-divergent nozzles, the inner convergent-divergent nozzle lining an interior of the outer convergent-divergent nozzle and defining an initial nozzle throat geometry;
- and
- an ignition system operable to trigger a controlled-energy detonation pressure wave across the inner and outer convergent-divergent nozzles,
- the inner convergent-divergent nozzle being formed of a fragmenting material with respect to the detonation pressure wave and the outer convergent-divergent nozzle being formed of a fragment-resistant material with respect to the detonation pressure wave such that upon triggering of the detonation pressure wave, the inner convergent-divergent nozzle fragments and exposes a secondary, different nozzle throat geometry of the outer convergent-divergent nozzle.
1 more element
Dependencies are inferred from the claim text.