JPS5493713A - Secondary air controller - Google Patents
Secondary air controllerInfo
- Publication number
- JPS5493713A JPS5493713A JP45878A JP45878A JPS5493713A JP S5493713 A JPS5493713 A JP S5493713A JP 45878 A JP45878 A JP 45878A JP 45878 A JP45878 A JP 45878A JP S5493713 A JPS5493713 A JP S5493713A
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- secondary air
- chamber
- engine
- 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 After Treatment (AREA)
Abstract
PURPOSE: To promote an improvement of performance, by such means that, simultaneously with a supply of the secondary air blocked to the exhaust path at high load operation of the engine, with a supply of the secondary air blocked to the exhaust path at speed deceleration of the engine, those of the above blocking operations be controlled by one negative pressure actuator.
CONSTITUTION: At the time of high load operation of the engine, the throttle valve is made fully open, with a negative pressure PB becoming a level of the atmospheric pressure. And a negative pressure, within a negative pressure chamber D of a valve assembly unit 20, goes down through passages 49, (C), 51, 55, 56, 57, 67, 86, J, L, 87, 68, 69 getting near the atmospheric pressure, with an elasticity of a spring 36 working to move down a diaphragm 34, stem 37, and a valve 38, and a valve hole 24 is closed with a second chamber B, linked to the atmosphere, and a first chamber A made blocking and a secondary air not supplied to an exhaust path 8. At the time of deceleration, the throttle valve 6 is shifted to a close-direction, with the negative pressure PB leading toward a direction of the negative pressure chamber D through a joint 49, and a high negative pressure PB is inducted into a first negative pressure chamber H from an outlet (D).
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45878A JPS5493713A (en) | 1978-01-06 | 1978-01-06 | Secondary air controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45878A JPS5493713A (en) | 1978-01-06 | 1978-01-06 | Secondary air controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5493713A true JPS5493713A (en) | 1979-07-25 |
| JPS621087B2 JPS621087B2 (en) | 1987-01-12 |
Family
ID=11474348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45878A Granted JPS5493713A (en) | 1978-01-06 | 1978-01-06 | Secondary air controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5493713A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5371717A (en) * | 1976-12-09 | 1978-06-26 | Toyota Motor Corp | Exhaust gas purifier for internal combustion engine |
-
1978
- 1978-01-06 JP JP45878A patent/JPS5493713A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5371717A (en) * | 1976-12-09 | 1978-06-26 | Toyota Motor Corp | Exhaust gas purifier for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS621087B2 (en) | 1987-01-12 |
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