JPS5464225A - Exhaust gas recirculation device - Google Patents

Exhaust gas recirculation device

Info

Publication number
JPS5464225A
JPS5464225A JP12530077A JP12530077A JPS5464225A JP S5464225 A JPS5464225 A JP S5464225A JP 12530077 A JP12530077 A JP 12530077A JP 12530077 A JP12530077 A JP 12530077A JP S5464225 A JPS5464225 A JP S5464225A
Authority
JP
Japan
Prior art keywords
exhaust gas
recirculation
load running
during
gas recirculation
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
JP12530077A
Other languages
Japanese (ja)
Inventor
Tatsumi Yamazaki
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 JP12530077A priority Critical patent/JPS5464225A/en
Publication of JPS5464225A publication Critical patent/JPS5464225A/en
Pending legal-status Critical Current

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  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE: To improve the drivability by effecting the exhaust gas recirculation at a higher recirculation rate during intermediate and high load running cinditions than that during a light load running condition.
CONSTITUTION: An exhaust gas recirculation device is composed: a recirculation control valve 1 which is mounted in a recirculation exhaust gas passage 13 such that its opening is controlled by a diaphragm 9; first and second ports 13 and 28 which are located upstream of a throttle valve 12 for taking out the intake vacuum established at the open position in accordance with the opening of the valve 12; first and second conduits 14 and 29 through which the respective ports 13 and 28 have communication with a diaphragm chamber 8; and a vacuum regulating valve 15 which is mounted midway of the first conduit 14 for regulating the intake vacuum in the first conduit 14 in accordance with the exhaust pressure. During the intermediate and high load running operations having the second port 28 opened, the intake vacuum is introduced directly into the diaphragm chamber 8 to increase the opening of the control valve 1 so that the exhaust gas recirculation may be accomplished at a higher recirculation rate than that during the light load running condition.
COPYRIGHT: (C)1979,JPO&Japio
JP12530077A 1977-10-19 1977-10-19 Exhaust gas recirculation device Pending JPS5464225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12530077A JPS5464225A (en) 1977-10-19 1977-10-19 Exhaust gas recirculation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12530077A JPS5464225A (en) 1977-10-19 1977-10-19 Exhaust gas recirculation device

Publications (1)

Publication Number Publication Date
JPS5464225A true JPS5464225A (en) 1979-05-23

Family

ID=14906661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12530077A Pending JPS5464225A (en) 1977-10-19 1977-10-19 Exhaust gas recirculation device

Country Status (1)

Country Link
JP (1) JPS5464225A (en)

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