JPS54142416A - Diesel engine air supply device with exhaust gas feedback valve - Google Patents

Diesel engine air supply device with exhaust gas feedback valve

Info

Publication number
JPS54142416A
JPS54142416A JP4998378A JP4998378A JPS54142416A JP S54142416 A JPS54142416 A JP S54142416A JP 4998378 A JP4998378 A JP 4998378A JP 4998378 A JP4998378 A JP 4998378A JP S54142416 A JPS54142416 A JP S54142416A
Authority
JP
Japan
Prior art keywords
exhaust gas
valve
intake pipe
amount
bypass
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
JP4998378A
Other languages
Japanese (ja)
Inventor
Akiyasu Kuwabara
Shozo Yanagisawa
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4998378A priority Critical patent/JPS54142416A/en
Priority to US06/033,270 priority patent/US4231337A/en
Priority to DE19792917166 priority patent/DE2917166A1/en
Publication of JPS54142416A publication Critical patent/JPS54142416A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exhaust-Gas Circulating Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE: To reduce production of NOx by feeding back the adquet amount of exhaust gas to an intake pipe according to the amount of air through an exhaust gas feedback valve which is provided in the intake pipe in a diesel engine coinciding with a regulation valve which opens or closes according to the opening of a throttle valve.
CONSTITUTION: A regulation valve 3 is provided in an intake pipe 1, using a lever 5 and rod 4 to coincide with a throttle valve not illustrated. An exhaust gas feedback valve 8 moves with the regulation valve 3, which opens or closes an exhaust gas feedback outlet port 6. Exhaust gas whose amount varies from opening of the throttle valve is fed back into the intake pipe 1 from an exhaust gas recirculation passage 7 laid on the outside of the intake pipe 1. Both currents upstream and down stream the regulation valve 3 are communicated by a bypass 9 aside the intake pipe 1. An electromagnetic valve 10 is provided above the passage 9, which makes the bypass 9 through only when an engine is cold. Under the cold state, air is fed from the bypass 9 to reduce the amount of recirculated exhaust gas.
COPYRIGHT: (C)1979,JPO&Japio
JP4998378A 1978-04-28 1978-04-28 Diesel engine air supply device with exhaust gas feedback valve Pending JPS54142416A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4998378A JPS54142416A (en) 1978-04-28 1978-04-28 Diesel engine air supply device with exhaust gas feedback valve
US06/033,270 US4231337A (en) 1978-04-28 1979-04-25 Air intake system for diesel engine
DE19792917166 DE2917166A1 (en) 1978-04-28 1979-04-27 AIR INLET SYSTEM FOR A DIESEL ENGINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4998378A JPS54142416A (en) 1978-04-28 1978-04-28 Diesel engine air supply device with exhaust gas feedback valve

Publications (1)

Publication Number Publication Date
JPS54142416A true JPS54142416A (en) 1979-11-06

Family

ID=12846242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4998378A Pending JPS54142416A (en) 1978-04-28 1978-04-28 Diesel engine air supply device with exhaust gas feedback valve

Country Status (1)

Country Link
JP (1) JPS54142416A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176639U (en) * 1981-04-30 1982-11-08
JPS57191837U (en) * 1981-05-31 1982-12-04

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176639U (en) * 1981-04-30 1982-11-08
JPH029080Y2 (en) * 1981-04-30 1990-03-06
JPS57191837U (en) * 1981-05-31 1982-12-04
JPH0212286Y2 (en) * 1981-05-31 1990-04-06

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