Patent ID: 9016076
Filing Date: 2015-04-28
Classification: F25D,G05D

Abstract:
1. A method comprising: supplying a throttling gas to a contact zone using a gas supply assembly; supplying a cryogenic fluid to the contact zone using a cryogenic fluid assembly; discharging a resultant fluid from the contact zone through a nozzle; measuring a first temperature, the first temperature being a temperature of the resultant fluid or a temperature of a material onto which the resultant fluid is discharged; and maintaining the first temperature within a first predetermined range of a set-point temperature by regulating a flow rate at which the throttling gas is supplied to the contact zone, wherein the supplying a cryogenic fluid step comprises supplying the cryogenic fluid to the contact zone using a supply line having a return line, an outer line located within the return line and an inner line located within the outer line, wherein the inner line is adapted to supply the cryogenic fluid to the contact zone, and wherein the return line, the outer line, and the inner line are all coaxial.