Direct impingement cook-off mechanism and system
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsBenjamin M. Blazek, Lee R. Hardt
Life of this patent
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Abstract
Embodiments are directed to direct impingement cook-off mitigation systems. As assembled, a munition fuzewell is torqued into the aft end of a munition. During a cook-off event, the expanding gases from the booster energetic will burn instead of detonating. The hot expanding booster gases are vented to the munition's main fill energetic causing the main fill energetic to burn concurrently with the booster energetic. The combined expanding gases from both the booster and main fill energetics are then vented through longitudinal vents.
Claims10
In the aft end of a munition, a direct impingement cook-off mitigation system, comprising:
- a hollow fuzewell having a proximal end, a distal end, an inner surface, an outer surface, and a wall defined by said inner surface and said outer surface, said hollow fuzewell centered about a central longitudinal axis, said inner surface defining a fuzewell inner envelope having a first inner portion, a second inner portion, and a third inner portion, wherein said first inner portion is located at said proximal end, said third inner portion is located at said distal end, wherein said second inner portion separating said first and third inner portions;
- a fuzewell liner affixed to said second inner portion, said fuzewell liner having a plurality of longitudinal grooves parallel to said central longitudinal axis;
- a threaded release ring concentric about said hollow fuzewell;
- and
- a munition case concentric about said threaded release ring, said munition case configured to house a main fill energetic.
Dependencies are inferred from the claim text.