JPS5535253A - Measuring instrument for quantity of suction air - Google Patents

Measuring instrument for quantity of suction air

Info

Publication number
JPS5535253A
JPS5535253A JP10872878A JP10872878A JPS5535253A JP S5535253 A JPS5535253 A JP S5535253A JP 10872878 A JP10872878 A JP 10872878A JP 10872878 A JP10872878 A JP 10872878A JP S5535253 A JPS5535253 A JP S5535253A
Authority
JP
Japan
Prior art keywords
flow
downstream
air
vortex
suction
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
JP10872878A
Other languages
Japanese (ja)
Inventor
Mitsuyou Nakamura
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP10872878A priority Critical patent/JPS5535253A/en
Publication of JPS5535253A publication Critical patent/JPS5535253A/en
Pending 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 improve flow-rate measurement precision with the disorder of a Karman vortex prevented by arranging a rotary blade wheel at the upstream or downstream of a vortex generating body arranged at the suction air intake of an engine and by suppressing the propagating of a suction-air pulsation to a flow-rate detection part effectively.
CONSTITUTION: In conduction duct 7 between air-cleaner case 5 of air suction passage 1 and duct 6 connected to a throttle chamber, Karman-vortex type flow-rate detection part 4 is provided. At the upstream and downstream of vortex generating body 8 of flow-rate detection part 4, rectifiers 11 and 12 are arranged to stabilize the generation of a Karman vortex street, thereby measuring a flow rate with high precision. Then, rotary blade wheel 13 is arranged close to rectifier 12 at the downstream so as to cover the passage section of duct 7 with projection surfaces of several blades 14 without making a gap, so that propagation of an air suction pulsation from the downstream will effectively be cut off.
COPYRIGHT: (C)1980,JPO&Japio
JP10872878A 1978-09-05 1978-09-05 Measuring instrument for quantity of suction air Pending JPS5535253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10872878A JPS5535253A (en) 1978-09-05 1978-09-05 Measuring instrument for quantity of suction air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10872878A JPS5535253A (en) 1978-09-05 1978-09-05 Measuring instrument for quantity of suction air

Publications (1)

Publication Number Publication Date
JPS5535253A true JPS5535253A (en) 1980-03-12

Family

ID=14492025

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10872878A Pending JPS5535253A (en) 1978-09-05 1978-09-05 Measuring instrument for quantity of suction air

Country Status (1)

Country Link
JP (1) JPS5535253A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4013351A1 (en) * 1989-04-25 1990-10-31 Mitsubishi Motors Corp Vortex flow meter
US4984456A (en) * 1988-12-19 1991-01-15 Toyota Jidosha Kabushiki Kaisha Device for detecting a mass flow of air fed into an engine cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984456A (en) * 1988-12-19 1991-01-15 Toyota Jidosha Kabushiki Kaisha Device for detecting a mass flow of air fed into an engine cylinder
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

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