JPS5723818A - Suction mechanism with hot-wire flow meter - Google Patents

Suction mechanism with hot-wire flow meter

Info

Publication number
JPS5723818A
JPS5723818A JP9903480A JP9903480A JPS5723818A JP S5723818 A JPS5723818 A JP S5723818A JP 9903480 A JP9903480 A JP 9903480A JP 9903480 A JP9903480 A JP 9903480A JP S5723818 A JPS5723818 A JP S5723818A
Authority
JP
Japan
Prior art keywords
hot
wire
pipe
air
flow meter
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
JP9903480A
Other languages
Japanese (ja)
Inventor
Tadao Kakizaki
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 Unisia Automotive Ltd
Original Assignee
Japan Electronic Control Systems 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 Japan Electronic Control Systems Co Ltd filed Critical Japan Electronic Control Systems Co Ltd
Priority to JP9903480A priority Critical patent/JPS5723818A/en
Publication of JPS5723818A publication Critical patent/JPS5723818A/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
    • G01F1/68—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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

PURPOSE:To prevent a suction mechanism from being influenced by suction pulsation by arranging a hot-wire flow meter on the upstream of a slottle room close to the room and forming the inwall of a cylindrical member in which a hot wire is supported like a orifice shape. CONSTITUTION:A air suction pipe 11 forms a circulation passage for sucked air. A slottle valve 1 to control the quantity of air to be fed to an engine is attached to the downstream of the inside of the air suction pipe 11. A hot-wire flow meter is fitted to the upperstream of the slottle room including the slottle valve 1 close to the slottle valve and connected to the inwall of the air suction pipe 11. A hot-wire pipe 8 is fitted to the center of the flow meter so as to be parallel with the circulation passage of air. A hot wire is attached to the inside of the hot-wire pipe 8 vetically to the flow direction of sucked air and the inwall is shaped like orifice. A ring venturi part 13 is attached to the inwall surface of the air suction pipe 11 at the downstream of the hot-wire pipe 8 close to the pipe 8.
JP9903480A 1980-07-19 1980-07-19 Suction mechanism with hot-wire flow meter Pending JPS5723818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9903480A JPS5723818A (en) 1980-07-19 1980-07-19 Suction mechanism with hot-wire flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9903480A JPS5723818A (en) 1980-07-19 1980-07-19 Suction mechanism with hot-wire flow meter

Publications (1)

Publication Number Publication Date
JPS5723818A true JPS5723818A (en) 1982-02-08

Family

ID=14236100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9903480A Pending JPS5723818A (en) 1980-07-19 1980-07-19 Suction mechanism with hot-wire flow meter

Country Status (1)

Country Link
JP (1) JPS5723818A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739651A (en) * 1986-07-28 1988-04-26 Air Sensors, Inc. Throttle body with internally mounted anemometer
US4870857A (en) * 1986-07-28 1989-10-03 Airsensors, Inc. Throttle body with internally mounted anemometer
EP0354649A2 (en) * 1988-08-11 1990-02-14 General Motors Corporation Close-coupled mass airflow meter and throttle plate assembly
EP0660090A2 (en) * 1987-06-17 1995-06-28 Hitachi, Ltd. Hot-wire type air-flow meter for internal combustion engines
US6240775B1 (en) * 1998-05-11 2001-06-05 Mitsubishi Denki Kabushiki Kaisha Flow rate sensor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739651A (en) * 1986-07-28 1988-04-26 Air Sensors, Inc. Throttle body with internally mounted anemometer
US4870857A (en) * 1986-07-28 1989-10-03 Airsensors, Inc. Throttle body with internally mounted anemometer
EP0660090A2 (en) * 1987-06-17 1995-06-28 Hitachi, Ltd. Hot-wire type air-flow meter for internal combustion engines
EP0660090B1 (en) * 1987-06-17 2001-09-12 Hitachi, Ltd. Hot-wire type air-flow meter arrangement for internal combustion engines
EP0354649A2 (en) * 1988-08-11 1990-02-14 General Motors Corporation Close-coupled mass airflow meter and throttle plate assembly
EP0354649A3 (en) * 1988-08-11 1991-12-18 General Motors Corporation Close-coupled mass airflow meter and throttle plate assembly
US6240775B1 (en) * 1998-05-11 2001-06-05 Mitsubishi Denki Kabushiki Kaisha Flow rate sensor
DE19852015B4 (en) * 1998-05-11 2010-09-23 Mitsubishi Denki K.K. Flow rate sensor

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