Fluid sprinkling – spraying – and diffusing – Combining of separately supplied fluids – Liquid flow induces atmospheric air
Patent
1996-09-30
1998-09-22
Morris, Lesley D.
Fluid sprinkling, spraying, and diffusing
Combining of separately supplied fluids
Liquid flow induces atmospheric air
239499, 239542, B05B 134
Patent
active
058102612
ABSTRACT:
A zero velocity head nozzle for effecting aerated discharge of water is disclosed which produces constant maximized zero velocity aerated water flow from a high pressure source. Two hollow, opposed and non-perforate hemispherical chambers are separated by a discharge gap at an equator separating the opposed hemispherical chambers. High pressure water inflow is introduced at the pole of one hemisphere, impacts the opposite pole of the opposed hemisphere, and thereafter sets up a generally toroidal energy dissipating flow path between the opposed hemispherical sections. At the same time, the underside of the hemisphere opposed to the input defines a convenient aeration input to the energy dissipating toroidal flow path. As a direct consequence, water flowing in the toroidal flow path is visibly entrained with miniature bubbles. Outflow of water intermixed with the bubbles occurs at the discharge gap between the opposed hemispherical sections with only a slight upward flow occurring toward the input. This slight upward flow is reversed at flow shield extending over the equatorial discharge gap with the result that zero velocity head discharge occurs with uniform distribution about the discharge gap. As a result, zero velocity head aerated water is conveniently discharged from the nozzle.
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