L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des

L'air Liquide

Jean-Marie Disdier

Jean-Pierre Germain

A solenoid valve is provided that includes a valve body (14) having an inlet duct (18), an outlet duct (24) and a plurality of sequentially operated solenoid actuators arranged in a circular configuration for selectively bringing these two ducts into communication with each other. The valve body includes at least two separate passages (19, 20) which connect the inlet duct to the outlet duct, and each of the solenoid actuators operates to periodically and selectively close off one of said passages. The solenoid valve finds particular application in inerting and pressurizing bottles containing still liquids with nitrogen.

Solenoid valve and its application to an apparatus for delivering

A head (14) intended to be mounted on the end of a transfer line comprising a downstream outlet orifice (39) for liquid. The device comprises an insulating central nozzle (40) in which there is formed a through-opening (44, 45) for the passage of the liquid, an outer chassis (56, 58) surrounding the central nozzle (40) and in which the latter can slide, means (16) of securing the chassis and the transfer line (12) together, and means (84) of elastic return which, in service, press the upstream end (45) of the through-opening (44, 45) of the nozzle against the periphery (38) of the downstream orifice (39) of the transfer line (12). Application to the distribution of liquid nitrogen into cans of preserves.

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Paris, France

Jean-Marie Disdier