DE3934759C2 - - Google Patents

Info

Publication number
DE3934759C2
DE3934759C2 DE3934759A DE3934759A DE3934759C2 DE 3934759 C2 DE3934759 C2 DE 3934759C2 DE 3934759 A DE3934759 A DE 3934759A DE 3934759 A DE3934759 A DE 3934759A DE 3934759 C2 DE3934759 C2 DE 3934759C2
Authority
DE
Germany
Prior art keywords
flow channel
air
conical section
main flow
air 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.)
Expired - Fee Related
Application number
DE3934759A
Other languages
German (de)
English (en)
Other versions
DE3934759A1 (de
Inventor
Toshifumi Katsuta Jp Usui
Atsushi Hitachi Jp Hokita
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
Hitachi Automotive Systems Engineering Co Ltd
Original Assignee
Hitachi Automotive Engineering Co Ltd
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 Automotive Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Automotive Engineering Co Ltd
Publication of DE3934759A1 publication Critical patent/DE3934759A1/de
Application granted granted Critical
Publication of DE3934759C2 publication Critical patent/DE3934759C2/de
Granted 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
    • G01F1/68—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 thermal effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F5/00—Measuring a proportion of the volume flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor
    • 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
    • G01F1/68—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 thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6842—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow with means for influencing the fluid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Volume Flow (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
DE3934759A 1988-10-18 1989-10-18 Luftmengenmesser fuer eine brennkraftmaschine Granted DE3934759A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63260469A JPH0654251B2 (ja) 1988-10-18 1988-10-18 内燃機関用空気流量計

Publications (2)

Publication Number Publication Date
DE3934759A1 DE3934759A1 (de) 1990-04-19
DE3934759C2 true DE3934759C2 (US07217764-20070515-C00002.png) 1993-07-01

Family

ID=17348382

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3934759A Granted DE3934759A1 (de) 1988-10-18 1989-10-18 Luftmengenmesser fuer eine brennkraftmaschine

Country Status (4)

Country Link
US (1) US4986116A (US07217764-20070515-C00002.png)
JP (1) JPH0654251B2 (US07217764-20070515-C00002.png)
KR (1) KR0163415B1 (US07217764-20070515-C00002.png)
DE (1) DE3934759A1 (US07217764-20070515-C00002.png)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0718726B2 (ja) * 1989-08-28 1995-03-06 株式会社日立製作所 内燃機関用空気流量計及びその製造方法
FR2674908B1 (fr) * 1991-04-08 1994-03-04 Jaeger Dispositif de controle d'admission d'air pour un systeme d'injection de vehicules comprenant une thermistance, ensemble pour la realisation de ce dispositif et procede de fabrication de cet ensemble.
DE19647086A1 (de) * 1996-11-14 1998-05-28 Bosch Gmbh Robert Vorrichtung zur Messung der Masse eines strömenden Mediums
DE19815656A1 (de) * 1998-04-08 1999-10-14 Bosch Gmbh Robert Meßvorrichtung zum Messen der Masse eines strömenden Mediums
JP6140985B2 (ja) * 2012-11-19 2017-06-07 トヨタ紡織株式会社 内燃機関の吸気管構造

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676012A (en) * 1979-11-27 1981-06-23 Hitachi Ltd Measuring device of suction air quantity
JPS5677716A (en) * 1979-11-29 1981-06-26 Hitachi Ltd Detector for amount of sucked air
JPS57104817A (en) * 1980-12-22 1982-06-30 Hitachi Ltd Air quantity measuring apparatus for internal combustion engine
JPS58105013A (ja) * 1981-12-18 1983-06-22 Hitachi Ltd 熱線式流量計
JPS58109815A (ja) * 1981-12-23 1983-06-30 Hitachi Ltd エアフロ−メ−タ
JPS58109816A (ja) * 1981-12-23 1983-06-30 Hitachi Ltd エアフロ−メ−タ
DE3203641A1 (de) * 1982-02-03 1983-08-11 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur verhinderung einer beschaedigung eines in einem stroemungsquerschnitt angeordneten temperaturabhaengigen widerstandes durch ueberhitzung und luftmassenmessvorrichtung zur durchfuehrung des verfahrens
JPS58135916A (ja) * 1982-02-08 1983-08-12 Hitachi Ltd 内燃機関用熱式流量計
JPS6165053A (ja) * 1984-09-07 1986-04-03 Hitachi Ltd 空気流量計
JPH0672793B2 (ja) * 1986-01-08 1994-09-14 株式会社日立製作所 流量検出装置
US4873641A (en) * 1986-07-03 1989-10-10 Nissan Motor Company, Limited Induction volume sensing arrangement for an internal combustion engine or the like
US4870857A (en) * 1986-07-28 1989-10-03 Airsensors, Inc. Throttle body with internally mounted anemometer
US4776213A (en) * 1987-03-18 1988-10-11 Ford Motor Company Mass airflow meter
KR950009044B1 (ko) * 1987-06-17 1995-08-14 가부시키가이샤 히타치세이사쿠쇼 발열저항식 공기유량측정장치

Also Published As

Publication number Publication date
KR0163415B1 (ko) 1999-03-30
JPH02108920A (ja) 1990-04-20
US4986116A (en) 1991-01-22
JPH0654251B2 (ja) 1994-07-20
DE3934759A1 (de) 1990-04-19
KR900006656A (ko) 1990-05-08

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8181 Inventor (new situation)

Free format text: USUI, TOSHIFUMI, KATSUTA, JP HOKITA, ATSUSHI, HITACHI, JP

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee