Patent ID: 11927433
Assignee: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A cook-off mitigation system, comprising:
a munition having an aft end and a hollow fuzewell torqued into said aft end;
said 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 outer surface having a first outer portion and a second outer portion, said first outer portion corresponding to said proximal end, said second outer portion corresponding to said distal end, said first and second outer portions separated by a flared region;
a booster housing inside said hollow fuzewell at said proximal end, wherein said booster housing is concentric about a thermally-softening booster cup;
a booster energetic housed in said thermally-softening booster cup;
a plurality of longitudinal vents circumferentially-spaced at equal distance in said wall, said plurality of longitudinal vents spanning longitudinally, parallel to said central longitudinal axis, from said outer surface at said flared region and through said wall to said distal end;
a plurality of radial apertures, each radial aperture in said plurality of radial apertures having a proximal end at said inner surface and a distal end at said flared region of said outer surface;
a threaded release ring concentric about said hollow fuzewell;
a munition case concentric about said threaded release ring, said munition case configured to house a main fill energetic;
wherein said munition case having an inner surface and a threaded outer surface, said inner surface having a munition case liner; and
an ullage space defined by said flared region, said plurality of radial apertures, said plurality of longitudinal vents, said threaded release ring, said inner surface of said munition case, said munition case liner, and said main fill energetic;
wherein during a cook-off event, decomposition projects from said booster energetic vent to said inner surface, through said plurality of radial apertures, into said ullage space, and impinge on said main fill energetic, said impingement igniting a subsonic burn of said main fill energetic.