JPS55148951A - Controller for return amount of exhaust gas in engine - Google Patents
Controller for return amount of exhaust gas in engineInfo
- Publication number
- JPS55148951A JPS55148951A JP5693679A JP5693679A JPS55148951A JP S55148951 A JPS55148951 A JP S55148951A JP 5693679 A JP5693679 A JP 5693679A JP 5693679 A JP5693679 A JP 5693679A JP S55148951 A JPS55148951 A JP S55148951A
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- negative pressure
- exhaust
- exhaust gas
- engine
- 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 increase the return amount of exhaust gas in accordance with the increase of the number of revolutions of an engine and reduce noxious ingredients in the exhaust gas effectively by transmitting negative pressures in a suction monifold and a Venturi tube alternatively to an exhaust-gas return control valve.
CONSTITUTION: Suction and exhaust pipes 1 and 2 are connected by a return passage 3 provided with an exhaust-gas return control valve 7. The first control valve 12 is connected to a diaphragm 9 on which a control valve 7 is fixed. A device 23 is divided into three chambers 8, 13 and 22. A negative pressure near a throttle valve 4 is introduced into the chamber 8, and the control valve 7 and the first control valve 12 are opened. As the result, a manifold negative pressure is introduced into a negative pressure chamber 16 of the second control valve 15 via chambers 22 and 13 to draw up a diaphragm 15'. Consequently, a negative pressure in a Venturi tube 20 is introduced into the chamber 8 via passages 19 and 6, increasing the opening degree of the control valve 7.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5693679A JPS55148951A (en) | 1979-05-11 | 1979-05-11 | Controller for return amount of exhaust gas in engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5693679A JPS55148951A (en) | 1979-05-11 | 1979-05-11 | Controller for return amount of exhaust gas in engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55148951A true JPS55148951A (en) | 1980-11-19 |
Family
ID=13041400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5693679A Pending JPS55148951A (en) | 1979-05-11 | 1979-05-11 | Controller for return amount of exhaust gas in engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55148951A (en) |
-
1979
- 1979-05-11 JP JP5693679A patent/JPS55148951A/en active Pending
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