Patent ID: 6746185
Filing Date: 2004-06-08
Classification: B23Q,Y02P,Y10T

Abstract:
A nozzle for applying a metalworking fluid to a workpiece and metalworking tool during metalworking of the workpiece, said metalworking fluid comprising an amount of at least one oil-containing liquid and an amount of a non-flammable gas, whereby effective cooling and lubrication of the workpiece and the tool occurs, said nozzle comprising:(a) a tip having an inner wall and an outer wall, and a front end and a back end, said inner wall of at least a first and second diameter; wherein said inner wall of first diameter forms a chamber and said inner wall of second diameter forms a passage way of a smaller diameter than said chamber connecting said chamber and the front end of said tip, wherein said oil-containing liquid and said non-flammable gas mix in said passage way; (b) a valve body having a valve body inner wall and a valve body outer wall, and a front end and a back end, the front end of said valve body being attached to the back end of said tip; said valve body inner wall being of varying diameter and having at least a first and second diameter and forming a valve body chamber, with said valve body inner wall first diameter of a larger diameter than said valve body inner wall second diameter, said inner wall having an oil-containing liquid inlet located in said valve body inner wall first diameter, and said valve body having at least one non-flammable gas conduit located between said inner and outer walls extending from said valve body back end to said valve body front end; and, (c) a hollow needle fitted into the portion of said valve body chamber formed by said valve body inner wall second diameter, said needle projecting away from the front end of said valve body into said tip chamber.