JPS53131865A - Air flowmeter for automobiles - Google Patents

Air flowmeter for automobiles

Info

Publication number
JPS53131865A
JPS53131865A JP4564977A JP4564977A JPS53131865A JP S53131865 A JPS53131865 A JP S53131865A JP 4564977 A JP4564977 A JP 4564977A JP 4564977 A JP4564977 A JP 4564977A JP S53131865 A JPS53131865 A JP S53131865A
Authority
JP
Japan
Prior art keywords
automobiles
air flowmeter
change
air
flowmeter
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
JP4564977A
Other languages
Japanese (ja)
Inventor
Satoshi Suzuki
Kiichi Hoshi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4564977A priority Critical patent/JPS53131865A/en
Publication of JPS53131865A publication Critical patent/JPS53131865A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
    • G01F1/325—Means for detecting quantities used as proxy variables for swirl
    • G01F1/3273—Means for detecting quantities used as proxy variables for swirl for detecting fluid speed oscillations by thermal sensors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To achieve the stabilization of detection outputs by causing the amplitude of detection signal to change in correspondence to the magnitude of air flow rate in an air flowmeter which detects von Karman's vortex street as the change in frequency of electric signal by using a thermistor.
JP4564977A 1977-04-22 1977-04-22 Air flowmeter for automobiles Pending JPS53131865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4564977A JPS53131865A (en) 1977-04-22 1977-04-22 Air flowmeter for automobiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4564977A JPS53131865A (en) 1977-04-22 1977-04-22 Air flowmeter for automobiles

Publications (1)

Publication Number Publication Date
JPS53131865A true JPS53131865A (en) 1978-11-17

Family

ID=12725211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4564977A Pending JPS53131865A (en) 1977-04-22 1977-04-22 Air flowmeter for automobiles

Country Status (1)

Country Link
JP (1) JPS53131865A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814448U (en) * 1971-07-01 1973-02-17
JPS4926449A (en) * 1972-07-07 1974-03-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814448U (en) * 1971-07-01 1973-02-17
JPS4926449A (en) * 1972-07-07 1974-03-08

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