ATE264998T1 - COMMON RAIL FUEL SUPPLY DEVICE FOR DIESEL ENGINES - Google Patents

COMMON RAIL FUEL SUPPLY DEVICE FOR DIESEL ENGINES

Info

Publication number
ATE264998T1
ATE264998T1 AT01980345T AT01980345T ATE264998T1 AT E264998 T1 ATE264998 T1 AT E264998T1 AT 01980345 T AT01980345 T AT 01980345T AT 01980345 T AT01980345 T AT 01980345T AT E264998 T1 ATE264998 T1 AT E264998T1
Authority
AT
Austria
Prior art keywords
conduit
chamber
supply device
fuel supply
fuel
Prior art date
Application number
AT01980345T
Other languages
German (de)
Inventor
Marino Nobile
Marino Sorgo
Original Assignee
Waertsilae Italia S P A
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 Waertsilae Italia S P A filed Critical Waertsilae Italia S P A
Application granted granted Critical
Publication of ATE264998T1 publication Critical patent/ATE264998T1/en

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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/442—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means preventing fuel leakage around pump plunger, e.g. fluid barriers
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • 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
    • F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
    • 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
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

Pump for common-rail accumulator, comprising: - a pump casing with an inner housing (2) and containing a sliding plunger (4) adapted to compress and deliver the fuel to said high-pressure accumulator; (1) - a sliding piston (6) adapted to slide in a contiguous portion of said housing; - a first chamber (7) comprised between said plunger and said sliding piston; - a second chamber (8) adjacent to said sliding piston; (6) - a first conduit (9) adapted to convey a flow of fuel from a suitable low-pressure tank (10) to said second chamber; (8) - a second conduit, (21) or delivery conduit, adapted to convey said fuel from said second chamber (8) to said high-pressure accumulator, (1) in which there is provided a third conduit (15) adapted to inject oil under pressure, in synchronization with the movement of said plunger, (4) onto the inner surface of said housing. (2) Said third conduit (15) is connected to a hydraulic pressure amplifier (40).
AT01980345T 2000-10-20 2001-09-06 COMMON RAIL FUEL SUPPLY DEVICE FOR DIESEL ENGINES ATE264998T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000PN000066A ITPN20000066A1 (en) 2000-10-20 2000-10-20 POWER SUPPLIES PERFECTED IN DIESEL ENGINES NAMED "COMMON RAIL"
PCT/EP2001/010263 WO2002035084A1 (en) 2000-10-20 2001-09-06 Improved fuel-supply devices in diesel engines of the common-rail type

Publications (1)

Publication Number Publication Date
ATE264998T1 true ATE264998T1 (en) 2004-05-15

Family

ID=11453189

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01980345T ATE264998T1 (en) 2000-10-20 2001-09-06 COMMON RAIL FUEL SUPPLY DEVICE FOR DIESEL ENGINES

Country Status (6)

Country Link
EP (1) EP1327071B1 (en)
AT (1) ATE264998T1 (en)
AU (1) AU2002212209A1 (en)
DE (1) DE60102939T2 (en)
IT (1) ITPN20000066A1 (en)
WO (1) WO2002035084A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006000834A1 (en) * 2006-01-05 2007-07-19 Linde Ag Ionically lubricated injection valve
WO2011159183A1 (en) * 2010-06-16 2011-12-22 Zuev Boris Konstantinovich High-pressure fuel pump
JP5927979B2 (en) * 2012-02-23 2016-06-01 浜名湖電装株式会社 Evaporative fuel purge device
CN109695566B (en) * 2019-01-18 2024-12-03 王淑平 A sealing and lubricating structure of a plunger pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB724986A (en) * 1953-04-02 1955-02-23 Crossley Premier Engines Ltd Improvements relating to fuel oil injection pumps of internal combustion engines
GB852884A (en) * 1958-08-28 1960-11-02 Su Carburetter Co Ltd Improvements relating to fuel-injection pumps for compression-ignition internal combustion engines
US4036195A (en) * 1975-11-24 1977-07-19 Caterpillar Tractor Co. Unit fuel injector
DE2952218A1 (en) * 1979-12-22 1981-07-02 Robert Bosch Gmbh, 7000 Stuttgart IC engine fuel injector for non-lubricating fuel - has oil supply duct to chamber contg. spring loading needle-operating pressure plunger
FI84093C (en) * 1989-08-30 1991-10-10 Waertsilae Diesel Int INSPRUTNINGSPUMP FOER BRAENSLE.

Also Published As

Publication number Publication date
WO2002035084A1 (en) 2002-05-02
ITPN20000066A1 (en) 2002-04-20
EP1327071A1 (en) 2003-07-16
EP1327071B1 (en) 2004-04-21
DE60102939T2 (en) 2004-11-04
AU2002212209A1 (en) 2002-05-06
DE60102939D1 (en) 2004-05-27

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Legal Events

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