JPS57173548A - Exhaust gas recirculation controller - Google Patents

Exhaust gas recirculation controller

Info

Publication number
JPS57173548A
JPS57173548A JP57005581A JP558182A JPS57173548A JP S57173548 A JPS57173548 A JP S57173548A JP 57005581 A JP57005581 A JP 57005581A JP 558182 A JP558182 A JP 558182A JP S57173548 A JPS57173548 A JP S57173548A
Authority
JP
Japan
Prior art keywords
egr
valve
opening
negative pressure
passage
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
JP57005581A
Other languages
Japanese (ja)
Other versions
JPS5853193B2 (en
Inventor
Shunichi Aoyama
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 JP57005581A priority Critical patent/JPS5853193B2/en
Publication of JPS57173548A publication Critical patent/JPS57173548A/en
Publication of JPS5853193B2 publication Critical patent/JPS5853193B2/en
Expired 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/55—Systems for actuating EGR valves using vacuum actuators
    • F02M26/56—Systems for actuating EGR valves using vacuum actuators having pressure modulation valves

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)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE:To perform effective reduction of NOx of an engine and ensure its drivability and fuel consumption, by interlocking an exhaust gas recirculation (EGR) control valve to a choke valve, providing the EGR control valve in an EGR passage and reducing an opening of said EGR valve when the choke valve is closed. CONSTITUTION:At normal operation, a choke valve 6 is opened, and a diaphragm 7b in a negative pressure control device 4 is moved upward in accordance with a pressure difference between chambers 8b, 8c to reduce an opening of an atmospheric air introducing passage 13a. In consequence, control negative pressure in a negative pressure passage 13b is increased, and a diaphragm 26 in a control valve 3 is moved upward to increase an opening of an exhaust gas recirculation (EGR) passage 1. If the choke valve 6 is closed at cold start operation of an engine, increased Venturi negative pressure Pv is applied to the chamber 8b, the control negative pressure tends to increase an opening of the control valve 3. However an EGR control valve 50 operates to interlock to the choke valve 6 and tend to decrease an opening of the EGR passage 1, as a result, an EGR rate can be low adjusted.
JP57005581A 1982-01-18 1982-01-18 Exhaust recirculation control device Expired JPS5853193B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57005581A JPS5853193B2 (en) 1982-01-18 1982-01-18 Exhaust recirculation control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57005581A JPS5853193B2 (en) 1982-01-18 1982-01-18 Exhaust recirculation control device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP9340576A Division JPS5320018A (en) 1976-08-05 1976-08-05 Exhaust reflux controller

Publications (2)

Publication Number Publication Date
JPS57173548A true JPS57173548A (en) 1982-10-25
JPS5853193B2 JPS5853193B2 (en) 1983-11-28

Family

ID=11615197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57005581A Expired JPS5853193B2 (en) 1982-01-18 1982-01-18 Exhaust recirculation control device

Country Status (1)

Country Link
JP (1) JPS5853193B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60147199A (en) * 1984-01-10 1985-08-03 東芝テック株式会社 Pc board mounting device
JPH0534147Y2 (en) * 1986-07-10 1993-08-30
JPH0381690U (en) * 1989-12-11 1991-08-21

Also Published As

Publication number Publication date
JPS5853193B2 (en) 1983-11-28

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