An apparatus for adjusting the partial pressure of gaseous mixtures comprises a housing and piston. The housing defines a chamber coupled to an oxygen metering orifice, diluent metering orifice, vent port and gas outlet. The oxygen metering orifice provides oxygen to the chamber and the diluent metering orifice provides diluent gas to the chamber. The piston is movably positioned in the chamber and includes first and second sealing devices. The chamber is sectioned into a mixing chamber, a diluent chamber and a reference chamber located between the mixing chamber and diluent chamber. The diluent chamber receives a diluent gas referenced at ambient pressure and the reference chamber is charged with a gas having a reference pressure. The piston changes positions within the chamber depending on a force balance created by a pressure differential between the reference pressure and ambient pressure.


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    Titel :

    SEMI-CLOSED CIRCUIT UNDERWATER BREATHING APPARATUS RATIO REGULATOR


    Weitere Titelangaben:

    VERHÄLTNISREGLER FÜR UNTERWASSERATMUNGSVORRICHTUNG MIT HALBGESCHLOSSENEM KREISLAUF
    RÉGULATEUR DE PROPORTION D'UN APPAREIL RESPIRATOIRE SOUS-MARIN À CIRCUIT SEMI-FERMÉ


    Beteiligte:
    BYRD GARY (Autor:in) / FELLNER CHRIS (Autor:in) / DOWDAL MISTY (Autor:in)

    Erscheinungsdatum :

    2022-03-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen



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