JPS5572644A - Device to prevent jet-clogging of egr valve and egr device - Google Patents
Device to prevent jet-clogging of egr valve and egr deviceInfo
- Publication number
- JPS5572644A JPS5572644A JP14702478A JP14702478A JPS5572644A JP S5572644 A JPS5572644 A JP S5572644A JP 14702478 A JP14702478 A JP 14702478A JP 14702478 A JP14702478 A JP 14702478A JP S5572644 A JPS5572644 A JP S5572644A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- egr
- injection nozzle
- air injection
- jet
- 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 prevent clogging by carbon sludge by placing an air injection nozzle in series with an EGR valve.
CONSTITUTION: EGR valve 1 and air injection nozzle 2 are connected in such a way that valves 14 and 33 are connected in series and further that air injection nozzle 2 lies between EGR valve 1 and exhaust manifold 38. On the outer side of path 28 is provided solenoid 32. Cylindrical valve 33, which can move up and down, is provided at the inner side of solenoid inside path 28. When valve 33 closes hole 36 and valve 29 moves away from valve seat 27, the air which flows from hole 22 provided on case 20 of air injection nozzle 2 flows in a jet to paths 28 and 11. This jet flow blows away the carbon sludge attached to valve seat 15 and jet 35.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14702478A JPS5572644A (en) | 1978-11-28 | 1978-11-28 | Device to prevent jet-clogging of egr valve and egr device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14702478A JPS5572644A (en) | 1978-11-28 | 1978-11-28 | Device to prevent jet-clogging of egr valve and egr device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5572644A true JPS5572644A (en) | 1980-05-31 |
Family
ID=15420811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14702478A Pending JPS5572644A (en) | 1978-11-28 | 1978-11-28 | Device to prevent jet-clogging of egr valve and egr device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572644A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4950049A (en) * | 1972-09-13 | 1974-05-15 |
-
1978
- 1978-11-28 JP JP14702478A patent/JPS5572644A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4950049A (en) * | 1972-09-13 | 1974-05-15 |
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