SYSTEM FOR GAS DISTRIBUTION AND MASS FLOW MEASUREMENT

A gas distribution system may include a gas mass flow sensor (206, 506) with a resistive element (230) configured to be heated, a thermally conductive shell (228, 528) surrounding the resistive element and heat-transfer control elements. The shell may include a leading surface (236, 536) oriented su...

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Bibliographische Detailangaben
Hauptverfasser:	FACINELLI, William, KANG, Alan, SHEORAN, Yogendra Yogi, EARL, Andrew, ISOBE, Jun
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS CONTROLLING DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL MECHANICAL ENGINEERING METERING BY VOLUME PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TAPS TESTING THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A gas distribution system may include a gas mass flow sensor (206, 506) with a resistive element (230) configured to be heated, a thermally conductive shell (228, 528) surrounding the resistive element and heat-transfer control elements. The shell may include a leading surface (236, 536) oriented substantially orthogonal to a direction of gas flow. At least one thermal insulator (244, 550) is positioned on a non-leading surface (240, 242, 540, 542, 552) of the shell to focus heat transfer from the resistive element through the leading surface of the shell, so that a rate of heat transfer is independent from the variations in flow configuration. Flow guidance elements (534) may additionally be positioned to provide a flow path focused on the leading surface of the shell.