JPS5566714A - Gas flow measuring device - Google Patents

Gas flow measuring device

Info

Publication number
JPS5566714A
JPS5566714A JP14018578A JP14018578A JPS5566714A JP S5566714 A JPS5566714 A JP S5566714A JP 14018578 A JP14018578 A JP 14018578A JP 14018578 A JP14018578 A JP 14018578A JP S5566714 A JPS5566714 A JP S5566714A
Authority
JP
Japan
Prior art keywords
electric heater
stripe pattern
flow
electric
measuring tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14018578A
Other languages
Japanese (ja)
Inventor
Tokio Kohama
Hideki Obayashi
Hisashi Kawai
Tsuneyuki Egami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soken Inc
Original Assignee
Nippon Soken Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP14018578A priority Critical patent/JPS5566714A/en
Priority to US06/092,517 priority patent/US4304129A/en
Publication of JPS5566714A publication Critical patent/JPS5566714A/en
Pending legal-status Critical Current

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  • Measuring Volume Flow (AREA)

Abstract

PURPOSE: To minimize fluctuation of gas flow measuring accuracy, by attaching two resistance wires, which constitute an electric heater and a thermo-electric resistance, in a stripe pattern and in such a direction that they cross one another as seen from the front side.
CONSTITUTION: An electric heater 10 to be provided in a flow-measuring tube 9 is to consist of platinum resistance wire 10b attached on a ring-like print board 10a in an equal-spaced lateral stripe pattern. On the other hand, No.1 and No.2 temperature dependence resistances 11 and 12, which are located on the downstream of and in the vicinity of the electric heater 10 and on the upstream side of and apart from the electric heater 10 in the dlow measuring tube 9 are made in such a manner that platinum resistance wires are attached on ring-like print boards 11a and 12a in an equal-spaced lateral stripe pattern. By attaching the resistance lines to the electric heater 10 and also to No.1 and No.2 thermo-electric resistances 11 and 12 in such a manner that they cross one another, it becomes possible to eliminate an extremely small heat distribution from the flow-measuring tube and also to minimize fluctuation of flow measuring accuracy to such an extent as not to cause any problem to the actual operation.
COPYRIGHT: (C)1980,JPO&Japio
JP14018578A 1978-11-13 1978-11-13 Gas flow measuring device Pending JPS5566714A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14018578A JPS5566714A (en) 1978-11-13 1978-11-13 Gas flow measuring device
US06/092,517 US4304129A (en) 1978-11-13 1979-11-08 Gas flow measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14018578A JPS5566714A (en) 1978-11-13 1978-11-13 Gas flow measuring device

Publications (1)

Publication Number Publication Date
JPS5566714A true JPS5566714A (en) 1980-05-20

Family

ID=15262873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14018578A Pending JPS5566714A (en) 1978-11-13 1978-11-13 Gas flow measuring device

Country Status (1)

Country Link
JP (1) JPS5566714A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57114146U (en) * 1981-01-05 1982-07-15
EP0756157A1 (en) * 1995-07-24 1997-01-29 C.R.F. Società Consortile per Azioni Method for measuring the air flow fed to an electronic injection internal combustion engine
EP0847787A1 (en) * 1996-12-13 1998-06-17 C.R.F. Società Consortile per Azioni Filter for fluids, including a flowmeter
JP2003510593A (en) * 1999-09-28 2003-03-18 インベント フロー コントロール システムズ ジーエムビーエッチ Gas flow rate measurement sensor and method of manufacturing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256214A (en) * 1975-11-01 1977-05-09 Nippon Soken Inc Air intake capacity detector for internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256214A (en) * 1975-11-01 1977-05-09 Nippon Soken Inc Air intake capacity detector for internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57114146U (en) * 1981-01-05 1982-07-15
EP0756157A1 (en) * 1995-07-24 1997-01-29 C.R.F. Società Consortile per Azioni Method for measuring the air flow fed to an electronic injection internal combustion engine
EP0847787A1 (en) * 1996-12-13 1998-06-17 C.R.F. Società Consortile per Azioni Filter for fluids, including a flowmeter
JP2003510593A (en) * 1999-09-28 2003-03-18 インベント フロー コントロール システムズ ジーエムビーエッチ Gas flow rate measurement sensor and method of manufacturing the same

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