JPS5776253A - Exhaust gas recirculating device - Google Patents
Exhaust gas recirculating deviceInfo
- Publication number
- JPS5776253A JPS5776253A JP55152786A JP15278680A JPS5776253A JP S5776253 A JPS5776253 A JP S5776253A JP 55152786 A JP55152786 A JP 55152786A JP 15278680 A JP15278680 A JP 15278680A JP S5776253 A JPS5776253 A JP S5776253A
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- primary
- egr
- pipes
- 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.)
- Pending
Links
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
PURPOSE: To accomplish the maximum exhaust gas recirculation (EGR) and secure the highest NOx reduction effect by a method wherein the valve body of an EGR controlling valve is actuated by means of two diaphragms, in negative pressure chambers defined with which the negative pressure controlled with a controller is induced.
CONSTITUTION: The valve body 21 of the EGR controlling valve 20 insertedly provided in an EGR pipe 2 can move in turn due to the primary and the secondary diaphragms 22 and 24, by which the primary and the secondary negative presssure chambers 23 and 25 are defined. The primary and the secondary negative pressure chambers 23 and 25 are connected respectively through negative pressure pipes 31 and 32 to a vacuum pump 30. A primary and a secondary solenoid valves 40 and 60 are insertedly provided respectively in the negative pressure pipes 31 and 32 and as well as a thermo-valve 50 is insertedly provided in a negative pressure pipe connecting the pump 30 with the junction of the both pipes 31 and 32. The solenoid valves 40 and 60 are controlled, respectively based on the outputs of a rotary sensor 81 and of position sensors (load sensors) 90, which detect the positions of fuel levers 91, by means of a controller 70 in accordance with the predetermined form.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55152786A JPS5776253A (en) | 1980-10-30 | 1980-10-30 | Exhaust gas recirculating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55152786A JPS5776253A (en) | 1980-10-30 | 1980-10-30 | Exhaust gas recirculating device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5776253A true JPS5776253A (en) | 1982-05-13 |
Family
ID=15548110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55152786A Pending JPS5776253A (en) | 1980-10-30 | 1980-10-30 | Exhaust gas recirculating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5776253A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5629050A (en) * | 1979-08-15 | 1981-03-23 | Toyota Motor Corp | Controller for recirculation of exhaust gas for internal combustion engine |
-
1980
- 1980-10-30 JP JP55152786A patent/JPS5776253A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5629050A (en) * | 1979-08-15 | 1981-03-23 | Toyota Motor Corp | Controller for recirculation of exhaust gas for internal combustion engine |
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