JPS57146047A - Safety device for fuel injection pump - Google Patents

Safety device for fuel injection pump

Info

Publication number
JPS57146047A
JPS57146047A JP56031681A JP3168181A JPS57146047A JP S57146047 A JPS57146047 A JP S57146047A JP 56031681 A JP56031681 A JP 56031681A JP 3168181 A JP3168181 A JP 3168181A JP S57146047 A JPS57146047 A JP S57146047A
Authority
JP
Japan
Prior art keywords
passage
fuel
electromagnetic valve
fuel injection
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.)
Granted
Application number
JP56031681A
Other languages
Japanese (ja)
Other versions
JPS6123385B2 (en
Inventor
Shigefumi Yasuhara
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP56031681A priority Critical patent/JPS57146047A/en
Priority to DE3142750A priority patent/DE3142750C2/en
Priority to US06/331,328 priority patent/US4437444A/en
Publication of JPS57146047A publication Critical patent/JPS57146047A/en
Publication of JPS6123385B2 publication Critical patent/JPS6123385B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE:To prevent the runaway of an engine by a method wherein a bypass passage is provided so as to bypass an electromagnetic valve provided in a fuel passage and the fuel is supplied to the engine through only the bypass passage when some trouble is caused in the control system of the fuel injection pump. CONSTITUTION:An auxiliary passage 30, to serve as a passage bypassing a main passage 29, and the main passage 29 are formed on the way of a fuel passage 28 for introducing the fuel from a fuel tank 24 to an inlet port 1 for a feed pump 3 while the electromagnetic valve 31 to open or close the main passage is provided in the main passage 29. Provided on the way of the auxiliary passage 30 is an orifice 34 having a predetermined opening area. In operation, the electromagnetic valve 31 is fully opened under a normal driving and the fuel pressurized by the feed pump 3 is introduced into the pump chamber 5 through a pressure regulating valve 4. On the other hand, when some trouble is caused in the control system of the fuel injection pump, the charging of the electromagnetic valve 31 is cut by releasing an emergency switch, the same valve 31 is closed totally and thereby supplying some flow rate of the fuel, which is regulated by the orifice 34, into the pump chamber 5.
JP56031681A 1980-12-19 1981-03-05 Safety device for fuel injection pump Granted JPS57146047A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP56031681A JPS57146047A (en) 1981-03-05 1981-03-05 Safety device for fuel injection pump
DE3142750A DE3142750C2 (en) 1980-12-19 1981-10-28 Fuel injection pump for a diesel internal combustion engine
US06/331,328 US4437444A (en) 1980-12-19 1981-12-16 Fuel injection pump for a diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56031681A JPS57146047A (en) 1981-03-05 1981-03-05 Safety device for fuel injection pump

Publications (2)

Publication Number Publication Date
JPS57146047A true JPS57146047A (en) 1982-09-09
JPS6123385B2 JPS6123385B2 (en) 1986-06-05

Family

ID=12337836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56031681A Granted JPS57146047A (en) 1980-12-19 1981-03-05 Safety device for fuel injection pump

Country Status (1)

Country Link
JP (1) JPS57146047A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0255855A (en) * 1988-08-17 1990-02-26 Honda Motor Co Ltd Fuel injection quantity controller for diesel engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0255855A (en) * 1988-08-17 1990-02-26 Honda Motor Co Ltd Fuel injection quantity controller for diesel engine

Also Published As

Publication number Publication date
JPS6123385B2 (en) 1986-06-05

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