CRYOGENIC FLUID STREAM DISPENSING DEVICE WITH POLYMER JOINT HAVING GIVEN EXPANSION COEFFICIENT

摘要

The invention relates to a device for dispensing at least one high-pressure cryogenic fluid stream, said device including a movable tool (3), comprising one or more fluid-dispensing nozzles (18) for dispensing one or more high-pressure cryogenic fluid streams, and a line (2, 5) for supplying high-pressure cryogenic fluid from the movable tool (3), said line including a stationary upstream portion (5) and a movable downstream portion (2) that is connected to the movable tool (3), said stationary upstream portion (5) and movable downstream portion (2) being fluidly connected to each other by means of a rotatable system (1) including a rotating joint (20). The rotating joint (20) includes a polymer material having a heat expansion coefficient between 10 x 106 and 160 x 10"6/K.