Plessey Handel Und Investments A.g.

Dennis Harvey

Barrie J Martin

Peter Stanwell

A vibratory atomizer for atomizing a liquid, which atomizer comprises a nozzle portion from which the liquid is ejected, a body portion having vibration means, and a liquid inlet pipe which is attached to the body portion and which is made a number of half wave lengths long for the speed of sound in the pipe whereby in use of the vibratory atomizer energy radiated into the pipe reflects back into the body portion in phase.

Vibratory atomizer

An arrangement for supporting a vibratory atomizer for liquids, in which a nozzle for ejecting the liquid forms the end of a longitudinal passage in a decreasing-diameter resonant vibration-amplifier horn that extends from a body portion equipped with a generator for longitudinal vibrations, in a supporting structure with a minimum of interference with either the longitudinal vibrations or radial vibrations which accompany these longitudinal vibrations. The atomizer is clamped axially between two annular resilient support members one of which acts upon a flange-like shoulder surface of the atomizer perpendicular to the longitudinal vibration at the larger-diameter base of the amplifier horn and permits relatively unrestricted radial movement of the shoulder surface, while the other engages the horn surface in the vicinity of this plane along a line at which the horn surface intersects a nodal zone of zero radial vibration, where it acts to centralize the atomizer in addition to supporting it axially. Both annular supporting members may be formed as O-ring seals, and the space between the two O-ring seals may be utilized as a chamber through which liquid is supplied to the axial bore via a passage leading to that bore from the surface of the horn.

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Tilbury, United Kingdom

Dennis Harvey