Fluid sprinkling – spraying – and diffusing – With means to vibrate or jiggle discharge
Patent
1976-03-23
1976-10-19
Love, John J.
Fluid sprinkling, spraying, and diffusing
With means to vibrate or jiggle discharge
310 81, 310 82, B05B 1706
Patent
active
039866696
ABSTRACT:
A tubular section is constructed for radial and axial resonance. The tubular resonator is clamped along a line of clamping engagement near one end of the tubular section and is driven by means of radially directed oscillatory force applied at a line of driving engagement spaced from the line of clamping engagement. The oscillatory force is obtained from a driver which is formed of an annulus of piezoelectric crystal polarized in a radial direction, having an inner base ring and outer annular driver wedge, triangular in cross section. Since the frequency of radial resonance is a function of the radius of the tubular section, and the frequency of axial resonance is a function of the length of the tubular section, the two frequencies of resonance are made to coincide by proper selection of tube radius and length and the resonant frequencies therefore made to reinforce one another. The clamp in one embodiment contains a manifold for receiving a liquid and has a plurality of conduits leading therefrom to an eflux position proximate to the surface of the tubular resonator.
The method of atomizing a liquid includes the steps of forcing a node near one end of the tubular resonator and driving the resonator tube into radial and axial resonance. Thereafter the process includes impinging the liquid on the surface of the resonator tube to form a liquid film thereon and perturbating the film with the vibratory motion of the surface until the liquid separates into droplets and is thrown from the resonating surface in atomized form.
REFERENCES:
patent: 3147146 (1964-09-01), Sedlacsik, Jr.
patent: 3214101 (1965-10-01), Perron
patent: 3663841 (1972-05-01), Parker
patent: 3804329 (1974-04-01), Martner
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