JPS5786552A - Egr controller - Google Patents

Egr controller

Info

Publication number
JPS5786552A
JPS5786552A JP56149012A JP14901281A JPS5786552A JP S5786552 A JPS5786552 A JP S5786552A JP 56149012 A JP56149012 A JP 56149012A JP 14901281 A JP14901281 A JP 14901281A JP S5786552 A JPS5786552 A JP S5786552A
Authority
JP
Japan
Prior art keywords
negative pressure
path
egr
chamber
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.)
Granted
Application number
JP56149012A
Other languages
Japanese (ja)
Other versions
JPS6143544B2 (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 JP56149012A priority Critical patent/JPS5786552A/en
Publication of JPS5786552A publication Critical patent/JPS5786552A/en
Publication of JPS6143544B2 publication Critical patent/JPS6143544B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE: To improve the drivability and the fuel consumption by providing an electromagnetic valve which opens/closes in accordance to the car speed in the path section for leading the negative pressure of an EGR controller thereby performing the higher gas return during the street travelling while reducing the EGR during the urban travelling.
CONSTITUTION: An EGR path 2 having an EGR valve 5 is provided while conducting between a suction path 1 and an exhaust path not shown. The suction negative pressure at the downstream of a throttle valve 12 is led through the negative pressure paths 11, 14, 13 to the negative pressure chamber 7 in a control valve 5. A negative pressure regulator 15 for regulating path 11. The device 15 comprises a chamber 23 for leading the negative pressure of a Venturi 29 through the negative pressure paths 27, 28, a chamber 24 in which the exhaust gas pressure from the EGR path 2 will be applied, etc. and driven in accordance to the differential pressure. An electromagnetic valve 39 which opens the atmospheric side for the car speed higher than predetermined level is provided in the negative pressure paths 27, 28 to lead the atmospheric air into the negative pressure path 11 thus to close the control valve 5.
COPYRIGHT: (C)1982,JPO&Japio
JP56149012A 1981-09-21 1981-09-21 Egr controller Granted JPS5786552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56149012A JPS5786552A (en) 1981-09-21 1981-09-21 Egr controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56149012A JPS5786552A (en) 1981-09-21 1981-09-21 Egr controller

Publications (2)

Publication Number Publication Date
JPS5786552A true JPS5786552A (en) 1982-05-29
JPS6143544B2 JPS6143544B2 (en) 1986-09-27

Family

ID=15465739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56149012A Granted JPS5786552A (en) 1981-09-21 1981-09-21 Egr controller

Country Status (1)

Country Link
JP (1) JPS5786552A (en)

Also Published As

Publication number Publication date
JPS6143544B2 (en) 1986-09-27

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