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JPS57131858A - Fuel supply unit for diesel engine - Google Patents

Fuel supply unit for diesel engine

Info

Publication number
JPS57131858A
JPS57131858A JP56017270A JP1727081A JPS57131858A JP S57131858 A JPS57131858 A JP S57131858A JP 56017270 A JP56017270 A JP 56017270A JP 1727081 A JP1727081 A JP 1727081A JP S57131858 A JPS57131858 A JP S57131858A
Authority
JP
Japan
Prior art keywords
fuel
return
temperature
tank
main filter
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
JP56017270A
Other languages
Japanese (ja)
Inventor
Katsuji Otsubo
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
Toyota Jidosha Kogyo KK
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, Toyota Jidosha Kogyo KK filed Critical Toyota Motor Corp
Priority to JP56017270A priority Critical patent/JPS57131858A/en
Publication of JPS57131858A publication Critical patent/JPS57131858A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • 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
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • F02M37/0035—Thermo sensitive valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To prevent the hazard of wax deposition by providing a control valve in a fuel return channel from an injection pump and an injection nozzle and by returning a return fuel to a filter or a tank in response to the temperature of fuel. CONSTITUTION:A switch-over valve 40 provided with a return pipe 36 serving as a branch channel is installed between return pipes 32 and 34 for return fuel from an injection nozzle 30 to a tank 20. The port 44 is connected to the tank 22 while the port 46 is connected to a main filter 26. The temperature of fuel in the main filter 26 is detected by a temperature detection sensor 48. By the action of a solenoid 50, a switch-over valve 40 is automatically selected so that the entire return fuel returns to the main filter 26 before attaining a specified temperature and the entire return fuel returns to the tank after attaining said temperature. With this construction, therefore, a relatively high temperature of oil can be maintained.
JP56017270A 1981-02-06 1981-02-06 Fuel supply unit for diesel engine Pending JPS57131858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56017270A JPS57131858A (en) 1981-02-06 1981-02-06 Fuel supply unit for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56017270A JPS57131858A (en) 1981-02-06 1981-02-06 Fuel supply unit for diesel engine

Publications (1)

Publication Number Publication Date
JPS57131858A true JPS57131858A (en) 1982-08-14

Family

ID=11939271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56017270A Pending JPS57131858A (en) 1981-02-06 1981-02-06 Fuel supply unit for diesel engine

Country Status (1)

Country Link
JP (1) JPS57131858A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780567A1 (en) * 1995-12-18 1997-06-25 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Fuel feed system
JP2005140106A (en) * 2003-11-04 2005-06-02 Hyundai Motor Co Ltd Fuel supply system of diesel engine vehicle for reducing fuel pressure loss
EP1319821A3 (en) * 2001-12-11 2007-10-31 Denso Corporation Fuel injection system having fuel recirculating structure
JP2013189939A (en) * 2012-03-14 2013-09-26 Kubota Corp Device for supplying fuel to engine
US10519908B2 (en) 2012-03-14 2019-12-31 Kubota Corporation Device for supplying fuel to engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780567A1 (en) * 1995-12-18 1997-06-25 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Fuel feed system
EP1319821A3 (en) * 2001-12-11 2007-10-31 Denso Corporation Fuel injection system having fuel recirculating structure
JP2005140106A (en) * 2003-11-04 2005-06-02 Hyundai Motor Co Ltd Fuel supply system of diesel engine vehicle for reducing fuel pressure loss
JP2013189939A (en) * 2012-03-14 2013-09-26 Kubota Corp Device for supplying fuel to engine
US10519908B2 (en) 2012-03-14 2019-12-31 Kubota Corporation Device for supplying fuel to engine

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