ADJUSTED GAS FLOWMETER - IWATANI INT CORP

Title:

ADJUSTED GAS FLOWMETER

Document Type and Number:

Japanese Patent JP2017181214

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a gas dispenser which can accurately measure a gas flow rate over a wide range (wide pressure range and a wide flow rate range).SOLUTION: An adjusted gas dispenser according to the present invention is corrected and priced by a standard gas flowmeter 1 having at least two critical flow nozzles 4 with different throat diameters and on-off valves 7 corresponding to the critical flow nozzles 4.SELECTED DRAWING: Figure 5

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Inventors:

MORIOKA TOSHIHIRO
ITO MASARU
FUJIKAWA SEIICHI
INOUE GOICHI

Application Number:

JP2016066865A

Publication Date:

October 05, 2017

Filing Date:

March 29, 2016

Export Citation:

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Assignee:

IWATANI INT CORP
AIST

International Classes:

G01F1/00; G01F1/36; G01F1/84; G01F3/22

Domestic Patent References:

JP2011515660A	2011-05-19
JP2004361392A	2004-12-24

Attorney, Agent or Firm:

Makoto International Patent Office

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