DEVICES FOR GAS COOLING PLASMA ARC TORCHES AND RELATED SYSTEMS AND METHODS Russian patent published in 2018 - IPC H05H1/28 

FIELD: heating.

SUBSTANCE: invention relates to devices for gas cooling plasma arc torches. In the claimed invention, the nozzles can include a nozzle body having a proximal end and a distal end that define a nozzle body length and a longitudinal axis. Body can include an exit orifice defined by the distal end; a plenum extending from the proximal end to a plenum floor, while the distance from the plenum floor to the distal end defining a plenum floor thickness, and a distance from the plenum floor to the proximal end defining a proximal end height; and a bore extending from the plenum floor to the exit orifice that has a bore length and a bore width. Housing also includes an opening extending from the bottom of the pressure chamber to the outlet nozzle. Length of the nozzle body is greater than its width, and the ratio of the height of the proximal end to the thickness of the bottom of the pressure chamber is less than 2.0.

EFFECT: improvement of cooling efficiency, improvement of the cutting performance, the possibility of creating more stable plasma arcs and increasing the life of consumables.

38 cl, 8 dwg