JPS5449417A - After-burn preventer for engine equipped with air pump - Google Patents
After-burn preventer for engine equipped with air pumpInfo
- Publication number
- JPS5449417A JPS5449417A JP1825278A JP1825278A JPS5449417A JP S5449417 A JPS5449417 A JP S5449417A JP 1825278 A JP1825278 A JP 1825278A JP 1825278 A JP1825278 A JP 1825278A JP S5449417 A JPS5449417 A JP S5449417A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust pipe
- secondary air
- chamber
- burn
- air pump
- 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 After Treatment (AREA)
Abstract
PURPOSE: To prevent after-burn from taking place in an exhaust pipe, by detecting the acceleration or deceleration of engine and stopping the supply of secondary air to the exhaust pipe at appropriate time without delay.
CONSTITUTION: When a throttle valve is quickly opened during the accleration of engine, the boost pressure of an intake manifold 6 falls drastically and the negative pressure of a chamber of an acceleration and deceleration detector A decreases but the decrease in the negative pressure of another chamber 1a is delayed by the resistance of an orifice 4. As a result, the pressure differs between the chambers 1a, 1b and a diaphragm 2 is pushed leftward and a magnet 8 is moved leftward. Thereby, a reed type switch 8 is turned on and a solenoid valve 10 is energized. Then, a part of the secondary air 19 discharged from an air pump 12 flows to a chamber 14a through a pipe 11 to push up a diaphragm 16 to hold the secondary air from flowing to the exhaust pipe 13c
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1825278A JPS5449417A (en) | 1978-02-20 | 1978-02-20 | After-burn preventer for engine equipped with air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1825278A JPS5449417A (en) | 1978-02-20 | 1978-02-20 | After-burn preventer for engine equipped with air pump |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1825073A Division JPS49107310A (en) | 1973-02-16 | 1973-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5449417A true JPS5449417A (en) | 1979-04-18 |
Family
ID=11966482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1825278A Pending JPS5449417A (en) | 1978-02-20 | 1978-02-20 | After-burn preventer for engine equipped with air pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5449417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112017000564T5 (en) | 2016-01-29 | 2018-10-31 | Asahi Kasei Microdevices Corporation | Angle detection device and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5318251A (en) * | 1976-07-31 | 1978-02-20 | Hachiya Kougiyou Kk | Treating method of sludge of excrement and purifying tank |
-
1978
- 1978-02-20 JP JP1825278A patent/JPS5449417A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5318251A (en) * | 1976-07-31 | 1978-02-20 | Hachiya Kougiyou Kk | Treating method of sludge of excrement and purifying tank |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112017000564T5 (en) | 2016-01-29 | 2018-10-31 | Asahi Kasei Microdevices Corporation | Angle detection device and method |
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