JPS5768557A - Fuel supplying device for internal combustion engine - Google Patents

Fuel supplying device for internal combustion engine

Info

Publication number
JPS5768557A
JPS5768557A JP14248080A JP14248080A JPS5768557A JP S5768557 A JPS5768557 A JP S5768557A JP 14248080 A JP14248080 A JP 14248080A JP 14248080 A JP14248080 A JP 14248080A JP S5768557 A JPS5768557 A JP S5768557A
Authority
JP
Japan
Prior art keywords
passage
valve
branch pipe
fuel injection
throttle valve
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
JP14248080A
Other languages
Japanese (ja)
Inventor
Yuko Suai
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 JP14248080A priority Critical patent/JPS5768557A/en
Publication of JPS5768557A publication Critical patent/JPS5768557A/en
Pending legal-status Critical Current

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  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE: To promote atomization and mixing of fuel in an intake system for an internal combustin engine in which a fuel injection valve is provided in each branch pipe of an intake manifold, by dividing the inner space of each branch pipe into two passages, and providing a fuel injection valve, auxiliary air intake port, and auxiliary throttle valve in each of the two passages.
CONSTITUTION: The inner space of each branch pipe 5a of an intake manifold 5 is divided into a first passage 5b and a second passage 5c larger than the first passage 5b. A fuel injection port 6a of a fuel injection valve 6 formed in the first passage 5b in the manner that it is directed toward the head 4a of an intake valve 4 and a venturi 9 is provided at the front of the injection port 6a, while an auxiliary throttle valve 10 is provided in the second passage 5c. The venturi 9 is formed with an annular groove 9b around the outer circumference of its throat part 9a. The annular groove 9b is communicated via an auxiliary air intake port 9c to an auxiliary air intake passage 5d formed in the branch pipe 5a and then to an up-stream part of a throttle valve 7 in a throttle body 8 via a pipe 11. On the other hand, the throttle valve 10 is fixed to a shaft 12 and applied with the biasing force of a spring 13 so that it is closed normally.
COPYRIGHT: (C)1982,JPO&Japio
JP14248080A 1980-10-14 1980-10-14 Fuel supplying device for internal combustion engine Pending JPS5768557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14248080A JPS5768557A (en) 1980-10-14 1980-10-14 Fuel supplying device for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14248080A JPS5768557A (en) 1980-10-14 1980-10-14 Fuel supplying device for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS5768557A true JPS5768557A (en) 1982-04-26

Family

ID=15316292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14248080A Pending JPS5768557A (en) 1980-10-14 1980-10-14 Fuel supplying device for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5768557A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5551401A (en) * 1994-05-31 1996-09-03 Suzuki Motor Corporation Air suction system for internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5551401A (en) * 1994-05-31 1996-09-03 Suzuki Motor Corporation Air suction system for internal combustion engine

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