JPS5531979A - Measuring unit for suctioned air flow of internal combustion engine - Google Patents

Measuring unit for suctioned air flow of internal combustion engine

Info

Publication number
JPS5531979A
JPS5531979A JP10637078A JP10637078A JPS5531979A JP S5531979 A JPS5531979 A JP S5531979A JP 10637078 A JP10637078 A JP 10637078A JP 10637078 A JP10637078 A JP 10637078A JP S5531979 A JPS5531979 A JP S5531979A
Authority
JP
Japan
Prior art keywords
air
suctioned
combustion engine
internal combustion
flow
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.)
Granted
Application number
JP10637078A
Other languages
Japanese (ja)
Other versions
JPS5847644B2 (en
Inventor
Kazuyuki Mizuta
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP53106370A priority Critical patent/JPS5847644B2/en
Publication of JPS5531979A publication Critical patent/JPS5531979A/en
Publication of JPS5847644B2 publication Critical patent/JPS5847644B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

PURPOSE: To increase the measuring accuracy and to make small the unit in size, by restricting the pulsive delivery of suctioned air.
CONSTITUTION: At the upper stream of the throttle valve 5 in the suction air guide tube 1, the vortex production pole 2 is orthogonally placed to the direction of flow a of suctioned air, and at the lower stream, the oscillator 3 for ultrasonic oscillator 3a and the receiver 4 of the processing circuit 4a are provided, and at the lower stream, the connection hole 6 is placed to commonly connect the air chamber 7 and the variable volume chamber 10. Thus, the air suctioned with the suctioned air guide tube 1 is suctioned to the internal combustion engine via the throttle valve 5 while producing Karman vortex having the number corresponding to the flow of the rear part of the eddy production pole 2, and the ultrasonic wave from the oscillator 3 is emitted to the Karman vortex b and received with the receiver 4. It is converted into a voltage corresponding to the suctioned air flow at the processing circuit 4a, and the negative pressure surge produced from the internal combustion engine is disappeared at the air chamber 7 and the variable volume chamber 10, to restrict the pulsation of air flow speed at the eddy producing pole 2, allowing to perform accurate measurement even with low speed and full open running.
COPYRIGHT: (C)1980,JPO&Japio
JP53106370A 1978-08-30 1978-08-30 Internal combustion engine intake air flow measurement device Expired JPS5847644B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53106370A JPS5847644B2 (en) 1978-08-30 1978-08-30 Internal combustion engine intake air flow measurement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53106370A JPS5847644B2 (en) 1978-08-30 1978-08-30 Internal combustion engine intake air flow measurement device

Publications (2)

Publication Number Publication Date
JPS5531979A true JPS5531979A (en) 1980-03-06
JPS5847644B2 JPS5847644B2 (en) 1983-10-24

Family

ID=14431827

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53106370A Expired JPS5847644B2 (en) 1978-08-30 1978-08-30 Internal combustion engine intake air flow measurement device

Country Status (1)

Country Link
JP (1) JPS5847644B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5754076A (en) * 1980-08-14 1982-03-31 De Beers Ind Diamond
JPS60239627A (en) * 1984-05-09 1985-11-28 ローベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Method and device for protecting air measuring mechanism mounted in suction pipe for engine from vibration of air column in suction pipe
DE4013351A1 (en) * 1989-04-25 1990-10-31 Mitsubishi Motors Corp Vortex flow meter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02225765A (en) * 1989-02-27 1990-09-07 Tokyo Seikan:Kk Trowel for plasterer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5754076A (en) * 1980-08-14 1982-03-31 De Beers Ind Diamond
JPS60239627A (en) * 1984-05-09 1985-11-28 ローベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Method and device for protecting air measuring mechanism mounted in suction pipe for engine from vibration of air column in suction pipe
DE4013351A1 (en) * 1989-04-25 1990-10-31 Mitsubishi Motors Corp Vortex flow meter
US5029465A (en) * 1989-04-25 1991-07-09 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Vortex flowmeter

Also Published As

Publication number Publication date
JPS5847644B2 (en) 1983-10-24

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