초록 ▼

This invention relates to an arrangement for the automatic distribution in free air of metered quantities of the liquid phase of a cryogenic fluid, and comprises a container to hold the liquid phase, a system to control the supply to the said container, metering means, forced discharge means, means

This invention relates to an arrangement for the automatic distribution in free air of metered quantities of the liquid phase of a cryogenic fluid, and comprises a container to hold the liquid phase, a system to control the supply to the said container, metering means, forced discharge means, means for distributing the cryogenic liquid, and a system for controlling the said metering member and the said discharge means. The invention is applicable in particular to the casting of metals, to the production of articles formed from different metals, and to the moulding of articles in series.

대표청구항 ▼

An arrangement for injecting a predetermined quantity of the liquid phase of a cryogenic fluid stored in a storage tank, said arrangement comprising in combination: a container to hold the liquid phase, means including a supply valve connected to said container for supplying cryogenic fluid thereto

An arrangement for injecting a predetermined quantity of the liquid phase of a cryogenic fluid stored in a storage tank, said arrangement comprising in combination: a container to hold the liquid phase, means including a supply valve connected to said container for supplying cryogenic fluid thereto from said tank, a system connected to the supply valve for controlling said supply valve, which system is sensitive to the level of liquid in said container, at least one metering member having a discharge valve, means including a filling valve communicating with the holding container for feeding liquid from said holding container to said metering member, said member being arranged to receive said predetermined quantity of said liquid, liquid distributing means connected to said discharge valve, and control means for selectively opening and closing said filling valve and said discharge valve to thereby control the filling and emptying of said metering member.