JPS5786552A - Egr controller - Google Patents
Egr controllerInfo
- 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
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
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) |
-
1981
- 1981-09-21 JP JP56149012A patent/JPS5786552A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6143544B2 (en) | 1986-09-27 |
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