Fluid sprinkling – spraying – and diffusing – Flow deflecting or rotation controlling means – Deflector and terminal flow element
Patent
1994-11-02
1996-04-09
Merritt, Karen B.
Fluid sprinkling, spraying, and diffusing
Flow deflecting or rotation controlling means
Deflector and terminal flow element
169 37, A62C 3102
Patent
active
055053831
ABSTRACT:
A fire protection nozzle has a base, an orifice, defined by the base and having a predetermined diameter, through which fire-retardant fluid can flow, a inlet section having an upstream end and defining a conduit for flow of the fire-retardant fluid along a conduit axis and leading to an upstream end of the orifice, a diffuser element positioned coaxially with and downstream of the orifice, and one or more arms extending from the base and supporting the diffuser element in a position, where, when flow of the fire-retardant fluid from the inlet section through the orifice is established, the fire-retardant fluid emerges from the orifice in a stream which impinges on a diffuser surface defined by the diffuser element to be distributed in a spray pattern. The diffuser surface defined by the diffuser element is generally spherical in shape in a region extending from an upstream end closest to the orifice to at least downstream of an equatorial plane of the diffuser element transverse to the conduit axis.
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"Fire Test Status Report on the Evaluation of the Aquamist.TM. . . . Machinery Spaces"; by Jerome S. Pepi, Grinnell Cororation; Prepared for Society of Fire Protection . . . Halon Alternatives; Univ. of Tennessee Conference Center; Knoxville, TN; pp. 1-18; Jun. 28, 1994.
Grinnell Corporation
Merritt Karen B.
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