JPS57146043A - Exhaust gas re-circulating device for internal-combustion engine - Google Patents

Exhaust gas re-circulating device for internal-combustion engine

Info

Publication number
JPS57146043A
JPS57146043A JP56031237A JP3123781A JPS57146043A JP S57146043 A JPS57146043 A JP S57146043A JP 56031237 A JP56031237 A JP 56031237A JP 3123781 A JP3123781 A JP 3123781A JP S57146043 A JPS57146043 A JP S57146043A
Authority
JP
Japan
Prior art keywords
suction air
passage
primary
exhaust gas
passages
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
JP56031237A
Other languages
Japanese (ja)
Other versions
JPS64589B2 (en
Inventor
Hiroshi Yokoyama
Atsuji Ishida
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.)
Suzuki Motor Corp
Original Assignee
Suzuki 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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP56031237A priority Critical patent/JPS57146043A/en
Publication of JPS57146043A publication Critical patent/JPS57146043A/en
Publication of JPS64589B2 publication Critical patent/JPS64589B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M11/00—Multi-stage carburettors, Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve
    • F02M11/02—Multi-stage carburettors, Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve with throttling valve, e.g. of flap or butterfly type, in a later stage opening automatically

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE:To improve the mixing of suction air and exhaust gas and enable to miniaturize a primary suction air passage by a method wherein a part of the exhaust gas is re-circulated to the primary and secondary suction air passages, in an engine equipped with the primary suction air passage for a light load and the secondary suction air passage for a heavy load. CONSTITUTION:In the internal-combustion engine, of which carburetter is consisting of a primary carburetter 2 for the light load and a secondary carburetter 4 for the heavy load, exhaust gas reflux ports 33, 34 are opened near the choke valves 6, 8 of the suction air passages 10, 12 for respective carburetters 2, 4 and both reflux ports 33, 34 are communicated with and connected to an introducing port 22 opened in an exhaust passage 20 through EGR passages 31, 32, a three-way passage 26 and a reflux passage 24. The three-way passage 26 is provided with EGR control valves 28, 30 concerned to respective passages 31, 32 and respective valves 28, 30 are operated so as to be opened by a negative pressure introduced from sensing ports 40, 42 near the choke valves 6, 8 for respective suction air passages 10, 12. According to this constitution, a load to supply the reflux gas in the primary suction air passage 10 may be lightened and miniaturizing of the latter may be made possible.
JP56031237A 1981-03-06 1981-03-06 Exhaust gas re-circulating device for internal-combustion engine Granted JPS57146043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56031237A JPS57146043A (en) 1981-03-06 1981-03-06 Exhaust gas re-circulating device for internal-combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56031237A JPS57146043A (en) 1981-03-06 1981-03-06 Exhaust gas re-circulating device for internal-combustion engine

Publications (2)

Publication Number Publication Date
JPS57146043A true JPS57146043A (en) 1982-09-09
JPS64589B2 JPS64589B2 (en) 1989-01-06

Family

ID=12325787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56031237A Granted JPS57146043A (en) 1981-03-06 1981-03-06 Exhaust gas re-circulating device for internal-combustion engine

Country Status (1)

Country Link
JP (1) JPS57146043A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127019U (en) * 1978-02-24 1979-09-04
JPS5515632A (en) * 1978-07-19 1980-02-02 Eiichi Uratani Dehumidifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127019U (en) * 1978-02-24 1979-09-04
JPS5515632A (en) * 1978-07-19 1980-02-02 Eiichi Uratani Dehumidifier

Also Published As

Publication number Publication date
JPS64589B2 (en) 1989-01-06

Similar Documents

Publication Publication Date Title
JPS5644418A (en) Device for improving combustion of mixture in four-cycle internal combustion engine
JPS57146043A (en) Exhaust gas re-circulating device for internal-combustion engine
JPS5672250A (en) Controller for exhaust gas recirculation in engine
GB1184525A (en) Improvements in or relating to Internal Combustion Engines.
JPS5644419A (en) Device for improving combustion of mixture in four-cycle internal combustion engine
JPS5783650A (en) Air-fuel ratio control device
JPS5647651A (en) Egr apparatus for diesel engine
JPS57183549A (en) Exhaust gas recirculating device for compound intake internal combustion engine
JPS5481420A (en) Exhaust gas purifying equipment for internal combustion engine
JPS57168020A (en) Suction device for internal combustion engine
JPS5641446A (en) Negative pressure modulator valve and exhaust gas recirculation system using it
JPS57186036A (en) Cylinder quantity controlled engine
JPS5525524A (en) Electronic control device for internal combustion engine
JPS56113038A (en) Exhaust recirculation control for engine
JPS56104144A (en) Exhasut reflux control
JPS5762921A (en) Intake device for internal combustion engine
JPS55134744A (en) Air-fuel ratio controlling device for multicylinder internal combustion engine
JPS5718438A (en) Fuel-air ratio controller for internal combustion engine
JPS5718449A (en) Exhaust gas recirculating device
JPS551413A (en) Mixer for liquefied gas engine
JPS6432059A (en) Combustion controller for engine
JPS57153925A (en) Intake device of internal combustion engine
JPS5650208A (en) Engine
JPS5632068A (en) Ehaust-gas purifying system
JPS5732047A (en) Method for controlling recycle of exhaust gas