[go: up one dir, main page]

JPS5677543A - Exhaust gas recirculation controller - Google Patents

Exhaust gas recirculation controller

Info

Publication number
JPS5677543A
JPS5677543A JP15504879A JP15504879A JPS5677543A JP S5677543 A JPS5677543 A JP S5677543A JP 15504879 A JP15504879 A JP 15504879A JP 15504879 A JP15504879 A JP 15504879A JP S5677543 A JPS5677543 A JP S5677543A
Authority
JP
Japan
Prior art keywords
valve
egr
negative pressure
control valve
egr control
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
JP15504879A
Other languages
Japanese (ja)
Inventor
Tadahisa Osanawa
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 JP15504879A priority Critical patent/JPS5677543A/en
Publication of JPS5677543A publication Critical patent/JPS5677543A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE: To maintain the flow rate of an exhaust gas recirculation device EGR at a constant level during the vehicle being decelerated by supplying air from an air introduction valve into a pressure chamber defined in an EGR passage between an EGR control valve and an orifice member provided downstream of the EGR control valve so as to flow off solid matters attaching to the inner wall of the EGR passage.
CONSTITUTION: When a throttle valve 5 is opened with its tip end overpassing a negative pressure port 15, an intake negative pressure is introduced into a negative pressure chamber 13 of the EGR control valve 7 through a duct 16. Consequently, a valve body 9 of the EGR control valve 7 is lifted up to open a valve port 8. Then, the pressure within the pressure chamber 18 defined within the EGR passage 6 by the orifice member 17 is increased and when it exceeds a predetermined value, a valve body 21 of a negative pressure regulating valve 19 moves leftwards through a diaphragm 24 to open a valve port 20. As a result, the atmospheric air is introduced into the duct 16 through an air filter 28 so that the valve body 21 is displaced in the closing direction for the purpose of maintaining the flow rate of the EGR to be constant.
COPYRIGHT: (C)1981,JPO&Japio
JP15504879A 1979-11-29 1979-11-29 Exhaust gas recirculation controller Pending JPS5677543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15504879A JPS5677543A (en) 1979-11-29 1979-11-29 Exhaust gas recirculation controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15504879A JPS5677543A (en) 1979-11-29 1979-11-29 Exhaust gas recirculation controller

Publications (1)

Publication Number Publication Date
JPS5677543A true JPS5677543A (en) 1981-06-25

Family

ID=15597524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15504879A Pending JPS5677543A (en) 1979-11-29 1979-11-29 Exhaust gas recirculation controller

Country Status (1)

Country Link
JP (1) JPS5677543A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2351563A (en) * 1998-06-04 2001-01-03 Ford Motor Co Air/fuel ratio control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2351563A (en) * 1998-06-04 2001-01-03 Ford Motor Co Air/fuel ratio control system
GB2351563B (en) * 1998-06-04 2001-06-27 Ford Motor Co Air/fuel ratio control system

Similar Documents

Publication Publication Date Title
JPS54117826A (en) Additional fluid controller for internal combustion engine
JPS5537504A (en) Exahust recycling device for engine
JPS5677543A (en) Exhaust gas recirculation controller
JPS54160927A (en) Device for correcting intaken air amount for engine
JPS5677544A (en) Exhaust gas recirculation controller
JPS5620752A (en) Recirculator for exhaust gas
JPS5724444A (en) Exhaust gas recirculating valve
JPS5677541A (en) Device for controlling recirculation of exhaust gas
JPS5783622A (en) Device for preventing counter flow of exhaust gas in secondary air feeder of engine
JPS5749037A (en) Controlling device for air-fuel ratio of internal-combustion engine
JPS5669453A (en) Exhaust gas recirculating device in engine
JPS5491619A (en) Exhaust gas recirculation apparatus
JPS55148950A (en) Exhaust-gas recirculating device
JPS5551936A (en) Air-fuel ratio controller for internal combustion engine
JPS5677540A (en) Device for controlling recirculation of exhaust gas
JPS5535163A (en) Exhaust gas return device for engine
JPS55131560A (en) Recirculating exhaust gas amount controller
JPS5540219A (en) Exhaust gas recycling device in engine
JPS56162219A (en) System for supplying secondary air for engine
JPS57157050A (en) Exhaust gas recirculation system
JPS54155311A (en) Exhaust gas controller
JPS5459522A (en) Exhaust gase recirculation controller
JPS557909A (en) Exhaust gas recirculation controlling apparatus of internal combustion engine
JPS55131559A (en) Recirculating exhaust gas amount controller
JPS5696144A (en) Exhaust gas recirculator