FIRE-EXTINGUSHING SPRAY NOZZLE AND FIRE-EXTINGUISHING EQUIPMENT
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United States of America Patent
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Issued Date -
Sep 9, 2010
app pub date -
Jun 16, 2008
filing date -
Jun 16, 2008
priority date (Note) -
Abandoned
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Abstract
Low-pressure fire-extinguishing liquid is converted into mist. A fire-extinguishing spray nozzle (10) comprises a main body (30) and an obstacle (36). The main body (30) has a port (40) for radially injecting the fire-extinguishing liquid. The obstacle (36) has an opposing surface (60) and is opposite to the port (40). The opposing surface (60) is arranged within a radial-injection region (102) of the fire-extinguishing liquid radially injected from the port (40). One part of the fire-extinguishing liquid radially injected from the port (40) collides with the opposing surface (60) and is reflected therefrom. The other part of the fire-extinguishing liquid radially injected from the port (40) passes around the opposing surface (60). The one part of the fire-extinguishing liquid is reflected from the opposing surface (60) and the other part passes around the opposing surface (60). In consequence, the fire-extinguishing liquid (72) reflected from the opposing surface (60) collides with the fire-extinguishing liquid (70) passing around the supposing surface (60). The collision between the fire-extinguishing liquids produces mist (74).
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