Orifice valve for an ultrasonic liquid atomizer

An ultrasonic liquid atomizer, comprising:

• an ultrasonic oscillator formed of a body having a piezoelectric transducer attached therewith and wherein a portion of the body is formed as an atomizer plate;
• axial bore means in the body of the oscillator and atomizer plate for liquid supply onto a surface of the atomizer plate;
• impact body means for deflecting and distributing supplied liquid on the atomizer plate, said impact body means being approximately centered over said axial bore means;
• stem means attached to the impact body means and passing through the axial bore means;
• tube means for supplying liquid through the axial bore means;
• means for transmitting a reciprocating motion to said impact body means via the stem means passing through the axial bore means;
• an orifice opening formed at the surface of the atomizer plate between the atomizer plate and impact body means being openable and closable via the stem means by said reciprocating motion;
• and the tube means comprising first and second tube portions, the first tube portion having the stem means connected therewith and being movable, and wherein an elastic hose part means connects the first and second tube portions, the second tube portion being stationary.

An ultrasonic liquid atomizer with an orifice valve, comprising:

• an ultrasonic oscillator having an atomizer plate;
• axial bore means in the oscillator and atomizer plate for liquid supply onto a surface of the atomizer plate;
• impact body means for deflecting and distributing supplied liquid on the atomizer plate;
• the impact body means having a stem which is situated in the axial bore means of the oscillator and of the atomizer plate, the impact body means being approximately centered over said bore means;
• the stem of the impact body means being continued in the form of a retaining wire extending beyond the oscillator at a side opposite the atomizer plate;
• a tube means for supplying liquid to the axial bore means, said tube means comprising first and second tube portions, the first portion having the retaining wire attached therewith and being movable, and wherein an elastic hose part means connects the first and second tube portions, the second tube portion being stationary;
• whereby when the first tube portion is moved a motion of the impact body means is executed relative to the atomizer plate such that an orifice opening at the surface of the atomizer plate between the atomizer plate and impact body means can be closed via the retaining wire and the stem of the impact body means.