Patent ID: 11904343
Assignee: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
Field: Chemical engineering (Chemistry)
Classification: CPC B  F  A | IPC A  B  F

Claim 0:
1. A device for injecting a cryogenic fluid, the device comprising
a fluid feed head;
a fluid dispensing body mounted in a detachable manner on said feed head, said feed head comprising a fluid flow groove, feeding said body, said groove being closed in a mounted position of the body on the feed head and said groove being open in a separated position of said feed head and said body;
a seal configured to close said groove;
a delivery valve that is forced against said body by a spring; and
a stop, mounted on a stem of the delivery valve, said spring bearing against said stop, said spring comprising a plurality of turns, said stop and said spring being configured such that the stop comes into contact with the body before the turns of the spring are brought into contact with one another during actuation of the delivery valve, wherein said stop comprises a first part, intended to be constant, and a second part, intended to be specific to each application, wherein said stem comprises a portion of reduced diameter and said stop comprises a mounting ring, said stem and said mounting ring being mutually configured so as to allow said ring to be snap-fastened on said stem at said portion of reduced diameter in order to axially position said first and/or second parts of the stop along said stem.