JPS5765829A - Exhaust gas puridier for internal combustion engine - Google Patents
Exhaust gas puridier for internal combustion engineInfo
- Publication number
- JPS5765829A JPS5765829A JP55140775A JP14077580A JPS5765829A JP S5765829 A JPS5765829 A JP S5765829A JP 55140775 A JP55140775 A JP 55140775A JP 14077580 A JP14077580 A JP 14077580A JP S5765829 A JPS5765829 A JP S5765829A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- secondary air
- passage
- control valve
- pressure
- 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
- Output Control And Ontrol Of Special Type Engine (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
PURPOSE: To simplify a construction of an engine which is equipped with an exhaust gas recirculator and a secondary air supply device by applying one passage for a combination usage as an exhaust gas recirculation passage running to a suction system and a secondary air passage to exhaust and suction systems.
CONSTITUTION: A passage 7 applied for a combination of recirculation of an exhaust gas and supply of a secondary air is removable to be connected to an exhaust passage 2, opening to a recirculation control valve 8 and a secondary air supply device 9. At idling where a throttle valve 2 is closed, a pressure in each port of a carburetor 5 is reduced up to an atmospheric pressure so that the recirculation control valve 8 is ceased. The resultant pressure is lowered to a great negative pressure, which acts on a diaphragm 41 inside a secondary air control valve 34 to open a port 38. A check valve 33 is opened or closed in response to a pulsation in the exhaust passage 2. In operation nearly to the full throttle, the pressure is sent through an exhaust gas pressure regulation valve 15 to open the recirculation control valve 8. A secondary air control valve is placed under a control of an air fuel ratio sensor 49 and a thermo-sensor 50 of an exhaust gas purifier 3.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55140775A JPS5765829A (en) | 1980-10-06 | 1980-10-06 | Exhaust gas puridier for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55140775A JPS5765829A (en) | 1980-10-06 | 1980-10-06 | Exhaust gas puridier for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5765829A true JPS5765829A (en) | 1982-04-21 |
JPS6119813B2 JPS6119813B2 (en) | 1986-05-19 |
Family
ID=15276454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55140775A Granted JPS5765829A (en) | 1980-10-06 | 1980-10-06 | Exhaust gas puridier for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5765829A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63130811U (en) * | 1987-02-18 | 1988-08-26 |
-
1980
- 1980-10-06 JP JP55140775A patent/JPS5765829A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6119813B2 (en) | 1986-05-19 |
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