JPS55131559A - Recirculating exhaust gas amount controller - Google Patents
Recirculating exhaust gas amount controllerInfo
- Publication number
- JPS55131559A JPS55131559A JP3996779A JP3996779A JPS55131559A JP S55131559 A JPS55131559 A JP S55131559A JP 3996779 A JP3996779 A JP 3996779A JP 3996779 A JP3996779 A JP 3996779A JP S55131559 A JPS55131559 A JP S55131559A
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- pressure chamber
- engine
- passage
- control 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
Abstract
PURPOSE: To effectively reduce production of Nox especially during acceleration and during high load running of an engine in which Nox is produced in maximum quantity by incorporating in an exhaust gas recirculation system of the engine a device for causing recirculating gas to be increased during acceleration and during high load running of the engine.
CONSTITUTION: Suction and exhaust pipes 2, 3 of an engine 1 are connected to each other by means of an exhaust gas recirculation passage 4. The passage 4 has a constant pressure chamber 6 formed therein and has a valve body 14 disposed therein and adapted to be actuated by a flow control valve 7. A negative pressure chamber 10 through which suction pipe negative pressure is communicated to a negative pressure chamber 9 of the control valve 7 has a pressure control valve 11 disposed therein. The control valve 11 has a partition plate 18 disposed therein which is actuated by the pressure in the constant pressure chamber 6 for opening and closing operations of an atmosphere introducing opening 19 to regulate negative pressure in the negative pressure chamber 9. Besides, the recirculation passage 4 has a bypass passage 20 provided thereto and having an opening and closing mechanism 21 which is responsive to a change of negative pressure introduced into a negative pressure chamber 26 thereof during acceleration and during high load running of the engine to open the passage 20 thereby to increase the recirculation gas.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3996779A JPS55131559A (en) | 1979-04-03 | 1979-04-03 | Recirculating exhaust gas amount controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3996779A JPS55131559A (en) | 1979-04-03 | 1979-04-03 | Recirculating exhaust gas amount controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55131559A true JPS55131559A (en) | 1980-10-13 |
Family
ID=12567715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3996779A Pending JPS55131559A (en) | 1979-04-03 | 1979-04-03 | Recirculating exhaust gas amount controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55131559A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5277927A (en) * | 1975-12-25 | 1977-06-30 | Nissan Motor Co Ltd | Egr controller for engine |
| JPS5230522B2 (en) * | 1971-09-25 | 1977-08-09 |
-
1979
- 1979-04-03 JP JP3996779A patent/JPS55131559A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5230522B2 (en) * | 1971-09-25 | 1977-08-09 | ||
| JPS5277927A (en) * | 1975-12-25 | 1977-06-30 | Nissan Motor Co Ltd | Egr controller for engine |
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