JPS5578164A - Air/fuel mixture supply device - Google Patents

Air/fuel mixture supply device

Info

Publication number
JPS5578164A
JPS5578164A JP15009978A JP15009978A JPS5578164A JP S5578164 A JPS5578164 A JP S5578164A JP 15009978 A JP15009978 A JP 15009978A JP 15009978 A JP15009978 A JP 15009978A JP S5578164 A JPS5578164 A JP S5578164A
Authority
JP
Japan
Prior art keywords
path
air
throttle valve
valve
primary
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
JP15009978A
Other languages
Japanese (ja)
Inventor
Mineo Kashiwatani
Taiji Hasegawa
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 JP15009978A priority Critical patent/JPS5578164A/en
Publication of JPS5578164A publication Critical patent/JPS5578164A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To compensate the air/fuel ratio variation particularly at the idle time and improve the operational performance, by the structure wherein a valve which determines the amount of fuel ejection in accordance with the signal from an air flow detector is provided in the suction path of a multicylinder engine, and an air path is connected to the suction path in the upper and lower streams of a throttle valve.
CONSTITUTION: Primary path 15 having primary throttle valve 3 and secondary path 16 having secondary throttle valve 4 are provided inside suction path 1. Primary path 15 in the lower stream of primary throttle valve 3 is provided with electromagnetic fuel ejecting valve 8. Function generator 7 receives signals from air flow detector 6, which is provided in the upper stream of venturi 2, and controls the opening and closing of this ejecting valve 8. Ejecting valve 8 is provided with auxiliary air path 9, which is used for atomizing fuel and which bypasses primary throttle valve 3. Further, idle air path 10 having adjusting screw 11 is provided in the upper stream of venturi 2 and in secondary path 16 in the lower stream of secondary throttle valve 4, and thereby air/fuel ratio compensation at the idle time is operated.
COPYRIGHT: (C)1980,JPO&Japio
JP15009978A 1978-12-06 1978-12-06 Air/fuel mixture supply device Pending JPS5578164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15009978A JPS5578164A (en) 1978-12-06 1978-12-06 Air/fuel mixture supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15009978A JPS5578164A (en) 1978-12-06 1978-12-06 Air/fuel mixture supply device

Publications (1)

Publication Number Publication Date
JPS5578164A true JPS5578164A (en) 1980-06-12

Family

ID=15489481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15009978A Pending JPS5578164A (en) 1978-12-06 1978-12-06 Air/fuel mixture supply device

Country Status (1)

Country Link
JP (1) JPS5578164A (en)

Cited By (1)

* 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833231A (en) * 1971-09-04 1973-05-08
JPS5137326A (en) * 1974-07-25 1976-03-29 Bosch Gmbh Robert
JPS5266116A (en) * 1975-12-01 1977-06-01 Hitachi Ltd Air amount control device in injection carburetor
JPS52151419A (en) * 1976-06-11 1977-12-15 Nissan Motor Co Ltd Exhaust clarifying system of internal combustion engine for automobile
JPS53134116A (en) * 1977-04-27 1978-11-22 Toyota Motor Corp Fuel feeder for internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833231A (en) * 1971-09-04 1973-05-08
JPS5137326A (en) * 1974-07-25 1976-03-29 Bosch Gmbh Robert
JPS5266116A (en) * 1975-12-01 1977-06-01 Hitachi Ltd Air amount control device in injection carburetor
JPS52151419A (en) * 1976-06-11 1977-12-15 Nissan Motor Co Ltd Exhaust clarifying system of internal combustion engine for automobile
JPS53134116A (en) * 1977-04-27 1978-11-22 Toyota Motor Corp Fuel feeder for internal combustion engine

Cited By (1)

* 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

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