Importance

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Abstract

A fire suppressant system, including: a nozzle having a passage wall that defines a converging-diverging passage, having: an inlet, an outlet downstream of the inlet, and a throat region that includes a converging portion and a diverging portion; a cone within the passage, having an upstream apex located within the diverging portion and a downstream end located within the passage and adjacent to the outlet, the cone has a radial outer wall that defines an exhaust passage with the passage wall, and the cone has a plurality of axial segments with differing segment cone angles, including: a first segment at the upstream apex of the cone that has a first cone angle such that the exhaust passage narrows along the first segment; and a second segment that is adjacent to the first segment and that has a second cone angle such that the exhaust passage expands along the second segment.

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First Claim