FLUIDIC-TYPE GAS METER

PROBLEM TO BE SOLVED: To provide a compact fluidic-type gas meter with a small instrumental error. SOLUTION: In the gas meter, a projection 53 that is 5.0 mm or less is provided on an external-wall inner surface 55 to provide a screw hole 51 that airtightly screws a lid body via packing onto an exte...

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Bibliographische Detailangaben
Hauptverfasser:	TOMOTA KEIICHI, OKABAYASHI MAKOTO, OKADA SHUICHI, IMAZAKI MASASHIGE, NAMIMOTO MASANOBU
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a compact fluidic-type gas meter with a small instrumental error. SOLUTION: In the gas meter, a projection 53 that is 5.0 mm or less is provided on an external-wall inner surface 55 to provide a screw hole 51 that airtightly screws a lid body via packing onto an external wall 50 of a gas storage part 25 for introducing gas to a fluidic element 1. Also, the shape of a gas flow direction downstream end part 54 of the gas storage part 25 is set to an arc being tangential to the external-wall inner surface 55 and a wall surface 56 at right angle to a direction for introducing the gas of the fluidic element 1, and the radius R is set to 2.5 to 4.5 times larger than width W of a nozzle 2.