JPS55119925A - Hot-wire type air-flow meter for internal combustion engine - Google Patents

Hot-wire type air-flow meter for internal combustion engine

Info

Publication number
JPS55119925A
JPS55119925A JP2558079A JP2558079A JPS55119925A JP S55119925 A JPS55119925 A JP S55119925A JP 2558079 A JP2558079 A JP 2558079A JP 2558079 A JP2558079 A JP 2558079A JP S55119925 A JPS55119925 A JP S55119925A
Authority
JP
Japan
Prior art keywords
hot
wires
bypass passage
air
duct
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
JP2558079A
Other languages
Japanese (ja)
Inventor
Mineo Kashiwatani
Tadahiko Otani
Kiyomi Morita
Yoshikazu Aochi
Takao Teranishi
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 JP2558079A priority Critical patent/JPS55119925A/en
Publication of JPS55119925A publication Critical patent/JPS55119925A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Abstract

PURPOSE:To prevent sticking of carbon powder and the like to hot-wires by providing hot-wires on the way of a bypass passage branched from an air conducting to a throttle chamber for reducing the pressure at the time of backfiring within the airduct. CONSTITUTION:A throttle chamber 10 is connected with an air cleaner 16 by an air duct 17. A bypass passage 19 is provided between the above duct 17 and the upper stream side wall of throttle valves 14 and 15 in a suction passage 11, and the air that has passed through the air cleaner 16 is partly conducted into the suction passage 11. At this stage, the connecting position S of the bypass passage 19 branched from the duct 17 is determined at a position which permits a space capacity able to reduce the pressure down to such degree as to kill the pressure influence at the time of backfiring essentially. On the way of this bypass passage 19, hot-wires 20 and 21 are arranged closely, and connected to a control unit 23 via lead wires 22.
JP2558079A 1979-03-07 1979-03-07 Hot-wire type air-flow meter for internal combustion engine Pending JPS55119925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2558079A JPS55119925A (en) 1979-03-07 1979-03-07 Hot-wire type air-flow meter for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2558079A JPS55119925A (en) 1979-03-07 1979-03-07 Hot-wire type air-flow meter for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS55119925A true JPS55119925A (en) 1980-09-16

Family

ID=12169850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2558079A Pending JPS55119925A (en) 1979-03-07 1979-03-07 Hot-wire type air-flow meter for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS55119925A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054887A2 (en) * 1980-12-22 1982-06-30 Hitachi, Ltd. Air flow meter assembly
EP0065771A2 (en) * 1981-05-22 1982-12-01 Hitachi, Ltd. Fuel injection apparatus
US4579098A (en) * 1982-12-16 1986-04-01 Robert Bosch Gmbh Method of and device for controlling the burn-off of a measuring resistor
JP2019152190A (en) * 2018-03-06 2019-09-12 愛三工業株式会社 Engine system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054887A2 (en) * 1980-12-22 1982-06-30 Hitachi, Ltd. Air flow meter assembly
US4495802A (en) * 1980-12-22 1985-01-29 Hitachi, Ltd. Air flow meter assembly
EP0065771A2 (en) * 1981-05-22 1982-12-01 Hitachi, Ltd. Fuel injection apparatus
US4579098A (en) * 1982-12-16 1986-04-01 Robert Bosch Gmbh Method of and device for controlling the burn-off of a measuring resistor
JP2019152190A (en) * 2018-03-06 2019-09-12 愛三工業株式会社 Engine system
WO2019171671A1 (en) * 2018-03-06 2019-09-12 愛三工業株式会社 Engine system

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