FIRE-EXTINGUISHING SPRAY NOZZLE AND FIRE-EXTINGUISHING EQUIPMENT
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United States of America Patent
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Issued Date -
Jul 22, 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) is arranged within a radial injection region (102) of the fire-extinguishing liquid radially injected from the port (40). The obstacle (36) has an outer peripheral surface formed in the shape of a truncated-conical inclined surface (62). This enables the fire-extinguishing liquid (70) radially injected from the port (40) and passing around the obstacle (36) to collide with the fire-extinguishing liquid (72) radially injected from the port (40) and reflected from the inclined surface (62) so as to produce mist (74) of fire-extinguishing liquid. When producing the mist (74) by such an action, the fire-extinguishing liquid radially injected from the port (40) may have a low pressure. As a result, it is possible to provide a fire-extinguishing spray nozzle (10) which converts the low-pressure fire-extinguishing liquid into mist.
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