JPS5572644A - Device to prevent jet-clogging of egr valve and egr device - Google Patents

Device to prevent jet-clogging of egr valve and egr device

Info

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
Application number
JP14702478A
Other languages
Japanese (ja)
Inventor
Taketo Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP14702478A priority Critical patent/JPS5572644A/en
Publication of JPS5572644A publication Critical patent/JPS5572644A/en
Pending legal-status Critical Current

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
JP14702478A 1978-11-28 1978-11-28 Device to prevent jet-clogging of egr valve and egr device Pending JPS5572644A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4950049A (en) * 1972-09-13 1974-05-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4950049A (en) * 1972-09-13 1974-05-15

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