LIQUID NITROGEN FILLING APPARATUS AND ITS FILLING NOZZLE ASSEMBLY

摘要

PROBLEM TO BE SOLVED: To provide a liquid nitrogen filling apparatus and its filling nozzle assembly which can be used for both a flow down filling system and a spray filling system in common simply by mounting or dismounting a few parts.;SOLUTION: This relates to a filling nozzle assembly of a liquid nitrogen filling device for filling liquid nitrogen into a container. The tip end of a needle 1 is structured in two stages, a sharp angle part 3 and an obtuse angle part 4. A valve seat 2 is formed with a cone shape hole, a flow down nozzle mounting hole and a spray nozzle mounting hole one after another from the top end part facing the needle tip end part. In case of a flow down filling system, a flow down nozzle 10 is mounted in the flow down nozzle mounting hole, and in case of a spray filling system, a spray nozzle 15 is screwed on the spray nozzle mounting hole. In this way, one filling nozzle assembly can be used for both flow down system and spray system in common.;COPYRIGHT: (C)2003,JPO