JPS5718449A - Exhaust gas recirculating device - Google Patents
Exhaust gas recirculating deviceInfo
- Publication number
- JPS5718449A JPS5718449A JP8366781A JP8366781A JPS5718449A JP S5718449 A JPS5718449 A JP S5718449A JP 8366781 A JP8366781 A JP 8366781A JP 8366781 A JP8366781 A JP 8366781A JP S5718449 A JPS5718449 A JP S5718449A
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- passage
- negative pressure
- egr
- flow 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
Links
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
PURPOSE: To obtain the proper return of exhaust gas for low load operation to promote the drivability by providing a bypass control valve in an EGR passage to introduce the suction negative pressure at the time of opening of a throttle valve part for making up for the insufficient flow of return operation on the basis of EGR negative pressure.
CONSTITUTION: In this EGR device, EGR exhaust gas is returned to a suction passage 4 via a return passage 7, the first and the second flow control valve 8 and 9 arranged in parallel, a return passage 10, the third flow control valve 11, and a return passage 12. At this stage, the first and the second flow control valve 8 and 9 are controlled for opening and closing by introducing a disboost negative pressure and an EGR negative pressure at negative ports 24 and 23 provided to face to positions of an end part 5a of the throttle valve 5 at opening angles of about 20 and 10° respectively into negative pressure chambers 13 and 14. The scond flow control valve 9 is provided to open and close a bypass flow passage 22 smaller in its flow passage area than the valve 8. The third flow control valve 11 is controlled via a link 27 in accordance with the opening degree of the throttle valve 5.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8366781A JPS5718449A (en) | 1981-05-30 | 1981-05-30 | Exhaust gas recirculating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8366781A JPS5718449A (en) | 1981-05-30 | 1981-05-30 | Exhaust gas recirculating device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14160276A Division JPS5367024A (en) | 1976-11-25 | 1976-11-25 | Exhaust gas reflux device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5718449A true JPS5718449A (en) | 1982-01-30 |
Family
ID=13808813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8366781A Pending JPS5718449A (en) | 1981-05-30 | 1981-05-30 | Exhaust gas recirculating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5718449A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4951418A (en) * | 1972-08-25 | 1974-05-18 | ||
JPS5196923A (en) * | 1975-02-22 | 1976-08-25 |
-
1981
- 1981-05-30 JP JP8366781A patent/JPS5718449A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4951418A (en) * | 1972-08-25 | 1974-05-18 | ||
JPS5196923A (en) * | 1975-02-22 | 1976-08-25 |
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