JPS56146015A - Suction device of internal combustion engine - Google Patents

Suction device of internal combustion engine

Info

Publication number
JPS56146015A
JPS56146015A JP4944980A JP4944980A JPS56146015A JP S56146015 A JPS56146015 A JP S56146015A JP 4944980 A JP4944980 A JP 4944980A JP 4944980 A JP4944980 A JP 4944980A JP S56146015 A JPS56146015 A JP S56146015A
Authority
JP
Japan
Prior art keywords
load
diameter suction
fuel
combustion chamber
air mixture
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.)
Granted
Application number
JP4944980A
Other languages
Japanese (ja)
Other versions
JPS6363726B2 (en
Inventor
Hidetaka Nohira
Hideaki Matsui
Masayuki Furuya
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP4944980A priority Critical patent/JPS56146015A/en
Publication of JPS56146015A publication Critical patent/JPS56146015A/en
Publication of JPS6363726B2 publication Critical patent/JPS6363726B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE: To improve combustion and reduce specific fuel consumption by causing swirling currents at the times of low load and high load and of tiny turbulences at the time of mediun load to intaken air respectively in the suction device provided with two suction holes per one cylinder.
CONSTITUTION: Venturi negative pressure is not generated at the time of low-load operation and a control valve 10 in a large-diameter suction pipe 7a is kept closed through the intermediary of a diaphragm device 11 and a link 13. Accordingly, the whole fuel-air mixture is supplied into a combustion chamber 25 through a small- diameter suction pipe 8a and a small-diameter suction port 8b, forming the strong swirling currents in the combustion chamber 25. Next, at the time of medium-load operation, the venturi negative pressure increases and introduced into a chamber 20 through the intermediary of a pipe 19, whereby a diaphragm 12 is made to move to the left and the control valve 10 is opened. Therefore, a certain quantity of the fuel- air mixture is supplied into the combustion chamber 25 through the large-diameter suction pipe 7a and a helical-type large-diameter suction port 7b and collides with the current of the fuel-air mixture from the port 8b, whereby tiny turbulent currents are caused.
COPYRIGHT: (C)1981,JPO&Japio
JP4944980A 1980-04-14 1980-04-14 Suction device of internal combustion engine Granted JPS56146015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4944980A JPS56146015A (en) 1980-04-14 1980-04-14 Suction device of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4944980A JPS56146015A (en) 1980-04-14 1980-04-14 Suction device of internal combustion engine

Publications (2)

Publication Number Publication Date
JPS56146015A true JPS56146015A (en) 1981-11-13
JPS6363726B2 JPS6363726B2 (en) 1988-12-08

Family

ID=12831441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4944980A Granted JPS56146015A (en) 1980-04-14 1980-04-14 Suction device of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS56146015A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186128U (en) * 1982-06-07 1983-12-10 トヨタ自動車株式会社 Flow path control device for helical intake port
JPS59108823A (en) * 1982-12-14 1984-06-23 Daihatsu Motor Co Ltd Internal-combustion engine
JPS60152027U (en) * 1984-03-21 1985-10-09 いすゞ自動車株式会社 direct injection diesel engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5491513U (en) * 1977-12-13 1979-06-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5491513U (en) * 1977-12-13 1979-06-28

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186128U (en) * 1982-06-07 1983-12-10 トヨタ自動車株式会社 Flow path control device for helical intake port
JPS6323548Y2 (en) * 1982-06-07 1988-06-28
JPS59108823A (en) * 1982-12-14 1984-06-23 Daihatsu Motor Co Ltd Internal-combustion engine
JPS60152027U (en) * 1984-03-21 1985-10-09 いすゞ自動車株式会社 direct injection diesel engine

Also Published As

Publication number Publication date
JPS6363726B2 (en) 1988-12-08

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