PLASMA-ARC CUTTING SYSTEM, INCLUDING FIXING CAPACITORS AND OTHER CONSUMABLE COMPONENTS AND RELATED WORKING METHODS Russian patent published in 2018 - IPC H05H1/28 H05H1/34 

FIELD: heating.

SUBSTANCE: invention relates to an inner cap for a liquid-cooled plasma torch. Inner cap for the liquid-cooled plasma torch comprises a substantially hollow body having a longitudinal axis, a first end and a second end, the first end including an annular region configured to be positioned in close proximity to the top of the plasma torch; a fluid passageway formed in the body and having a shape enabling fluid to be transported therethrough, the fluid passage including a first group of openings formed in the annular region; and a gas passage formed in the body and having a shape allowing gas to be transported therethrough, the gas passage including a second group of openings formed in the annular region, wherein the annular region is configured in such a way that the subgroups of openings in the first group of openings direct fluid in a radial direction with respect to the longitudinal axis and alternate in a circumferential direction about the longitudinal axis with subgroups of openings in the second group of openings that guide the gas in a direction substantially parallel to the longitudinal axis.

EFFECT: invention minimizes the driving force necessary to advance the coolant through the burner.

21 cl, 3 dwg