초록 ▼

An atomizing nozzle for use in a fluidized coating bed includes an elongated hollow tube defining a chamber therein, the tube including an atomizing end in fluid communication with the chamber and a supply end; an air supply port at the supply end in fluid communication with the chamber; a coating l

An atomizing nozzle for use in a fluidized coating bed includes an elongated hollow tube defining a chamber therein, the tube including an atomizing end in fluid communication with the chamber and a supply end; an air supply port at the supply end in fluid communication with the chamber; a coating liquid supply port at the supply end, the coating liquid supply port being separated from the air supply port; and a flow control tube extending within the hollow tube between the liquid supply port and the atomizing end, for supplying the coating liquid to be atomized to the atomizing end, the flow control tube having an reduced diameter inner bore providing a controlled flow constriction to the liquid travelling from the liquid supply port to the atomizing end so as to supply the coating liquid from the coating liquid supply port to the atomizing end with a controlled flow constriction, such that there is no need to provide a metering pump or flow meter for each atomizing nozzle of the fluidized coating bed and control of the flow through each atomizing nozzle is readily accomplished by varying the internal bore size of the flow control tubes.

대표청구항 ▼

An atomizing nozzle comprising: (a) elongated hollow tube defining a chamber therein, said tube including opposite atomizing and supply ends, both in fluid communication with said chamber; (b) a supply housing connected at the supply end of said tube, said supply housing including: (i) an air supply

An atomizing nozzle comprising: (a) elongated hollow tube defining a chamber therein, said tube including opposite atomizing and supply ends, both in fluid communication with said chamber; (b) a supply housing connected at the supply end of said tube, said supply housing including: (i) an air supply port in fluid communication with said chamber, (ii) a liquid supply port in fluid communication with said chamber, said liquid supply port being separated from said air supply port; and (iii) a passageway interconnecting said air and liquid supply ports; (c) flow constriction means for supplying said liquid from said liquid supply port to said atomizing end with a controlled flow constriction, said flow constriction means including flow control tube means, extending within said hollow tube between said liquid supply port and said atomizing end, for supplying said liquid to be atomized to said atomizing end, said flow control tube means having an inner bore providing said flow constriction to said liquid travelling from said liquid supply port to said atomizing end, said flow control tube means including a supply end and an atomizing end, said supply end removably extending within said passageway in a fluid sealing manner so as to fluidly separate said air supply port and said liquid supply port; (d) an air cap removably secured to the atomizing end of said elongated hollow tube and having a central atomizing opening; (e) said flow control tube means being dimensioned to permit removal and replacement of said flow control tube means through said atomizing end of said hollow tube when said air cap is removed therefrom; and (f) wherein said liquid is supplied from said flow control tube means through the atomizing end thereof, and air is supplied from said chamber through an annular gap defined between said flow control tube means and said air cap for atomizing the liquid exiting from said flow control tube means.