IT1305511B1 - INJECTION DEVICE PERFECTED IN DIESEL CALLED COMMON RAIL ENGINES - Google Patents

INJECTION DEVICE PERFECTED IN DIESEL CALLED COMMON RAIL ENGINES

Info

Publication number
IT1305511B1
IT1305511B1 IT1998PN000046A ITPN980046A IT1305511B1 IT 1305511 B1 IT1305511 B1 IT 1305511B1 IT 1998PN000046 A IT1998PN000046 A IT 1998PN000046A IT PN980046 A ITPN980046 A IT PN980046A IT 1305511 B1 IT1305511 B1 IT 1305511B1
Authority
IT
Italy
Prior art keywords
fuel
chambers
conduit
chamber
diesel
Prior art date
Application number
IT1998PN000046A
Other languages
Italian (it)
Inventor
Marino Sorgo
Marino Nobile
Original Assignee
Diesel Ricerche Spa
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 Diesel Ricerche Spa filed Critical Diesel Ricerche Spa
Priority to IT1998PN000046A priority Critical patent/IT1305511B1/en
Priority to AT99110390T priority patent/ATE287499T1/en
Priority to DE69923256T priority patent/DE69923256T2/en
Priority to EP99110390A priority patent/EP0967388B1/en
Publication of ITPN980046A1 publication Critical patent/ITPN980046A1/en
Application granted granted Critical
Publication of IT1305511B1 publication Critical patent/IT1305511B1/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
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated 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)

Abstract

Fuel injector for an internal combustion engine, comprising a valve body provided with an inner housing, a therein sliding plunger, in which there are arranged at least a first and a second chamber, three distinct conduits adapted to convey a flow of fuel from a high-pressure source to one of said chambers and a flow of fuel from one of said chambers to the needle valve, in which the outer walls of the plunger are slidably adhering to inner walls of said housing so as to prevent fuel from anyhow leaking or seeping between said two chambers through passages between the plunger and said walls. The outflow section connecting said first conduit with said third conduit within the second chamber is of the same order of magnitude as the outflow section of said needle valve and is further significantly smaller than the outflow section connecting said second conduit within the first chamber. <IMAGE>
IT1998PN000046A 1998-06-22 1998-06-22 INJECTION DEVICE PERFECTED IN DIESEL CALLED COMMON RAIL ENGINES IT1305511B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT1998PN000046A IT1305511B1 (en) 1998-06-22 1998-06-22 INJECTION DEVICE PERFECTED IN DIESEL CALLED COMMON RAIL ENGINES
AT99110390T ATE287499T1 (en) 1998-06-22 1999-05-28 IMPROVED INJECTION DEVICE FOR DIESEL ENGINES WITH COMMON RAIL
DE69923256T DE69923256T2 (en) 1998-06-22 1999-05-28 Improved injector for diesel engines with common rail
EP99110390A EP0967388B1 (en) 1998-06-22 1999-05-28 Improved injection device in diesel engines of the common-rail type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1998PN000046A IT1305511B1 (en) 1998-06-22 1998-06-22 INJECTION DEVICE PERFECTED IN DIESEL CALLED COMMON RAIL ENGINES

Publications (2)

Publication Number Publication Date
ITPN980046A1 ITPN980046A1 (en) 1999-12-22
IT1305511B1 true IT1305511B1 (en) 2001-05-09

Family

ID=11395396

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1998PN000046A IT1305511B1 (en) 1998-06-22 1998-06-22 INJECTION DEVICE PERFECTED IN DIESEL CALLED COMMON RAIL ENGINES

Country Status (4)

Country Link
EP (1) EP0967388B1 (en)
AT (1) ATE287499T1 (en)
DE (1) DE69923256T2 (en)
IT (1) IT1305511B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60321273D1 (en) 2002-07-01 2008-07-10 Mitsubishi Heavy Ind Ltd Fuel injector and diesel engine equipped therewith
DE10241445A1 (en) * 2002-09-06 2004-03-18 Daimlerchrysler Ag Fuel injection control valve has first valve component which with regard to HP flow direction is installed before first sealing face and second valve component with regard to LP flow direction is located after second sealing face
IT1403006B1 (en) * 2010-12-06 2013-09-27 O M T Ohg Torino S P A HIGH-LIFE OPERATING PULVERIZER FOR HIGH-PRESSURE MECHANICAL INJECTORS OPERATING WITH HEAVY FUEL

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5094215A (en) * 1990-10-03 1992-03-10 Cummins Engine Company, Inc. Solenoid controlled variable pressure injector
GB2295881A (en) * 1994-11-29 1996-06-12 Lucas Ind Plc Control valve
DE4445980C2 (en) * 1994-12-22 1999-12-30 Mtu Friedrichshafen Gmbh Injection system
GB9503341D0 (en) * 1995-02-21 1995-04-12 Lucas Ind Plc Valve

Also Published As

Publication number Publication date
EP0967388A2 (en) 1999-12-29
ATE287499T1 (en) 2005-02-15
EP0967388B1 (en) 2005-01-19
DE69923256T2 (en) 2005-06-23
EP0967388A3 (en) 2003-03-12
ITPN980046A1 (en) 1999-12-22
DE69923256D1 (en) 2005-02-24

Similar Documents

Publication Publication Date Title
WO1999000595A3 (en) Fuel injection system
DE60034417D1 (en) Fuel injection valve for reciprocating internal combustion engine
DE59003995D1 (en) Fuel injector.
EP1063398A3 (en) Piston for a direct injection gasoline engine
DE59608924D1 (en) FUEL INJECTION
ES2195442T3 (en) DURATION CONTROL FOR COMMON RAIL INJECTORS.
ATE309463T1 (en) HIGH PRESSURE FUEL STORAGE
GB2333327B (en) High pressure pump for the purpose of supplying fuel in fuel injection systems of internal combustion engines
FI20000985A0 (en) Procedure for locating fuel leakage at an internal combustion engine
ATE314573T1 (en) FUEL SYSTEM
ATE285035T1 (en) FUEL INJECTION SYSTEM
ATE360139T1 (en) COMMON RAIL INJECTOR
WO2002063162A3 (en) Device for damping pressure pulsations in high-pressure injection systems
ATE458909T1 (en) FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE WITH DIRECT FUEL INJECTION
DE69107405D1 (en) High pressure sealing system for the control valve of an electromagnetic fuel injector for internal combustion engines.
ATE455956T1 (en) FUEL INJECTOR
IT1305511B1 (en) INJECTION DEVICE PERFECTED IN DIESEL CALLED COMMON RAIL ENGINES
AU4798497A (en) Method and device for fuel injection in a combustion engine
US20040211394A1 (en) Fuel return passage for an internal combustion engine
FI102314B1 (en) Device for controlling the flow of hydraulic pressure medium, in particular for injecting fuel into an internal combustion piston engine
DE60113033D1 (en) Fuel Injector Body for Direct Injection Internal Combustion Engine
ATE286208T1 (en) STROKE AND PRESSURE CONTROLLED INJECTOR WITH DOUBLE SLIDE
ATE247226T1 (en) COMBUSTION ENGINE WITH EXHAUST GAS RECIRCULATION
IT1275765B1 (en) VALVE ARRANGEMENT IN AN INTERNAL COMBUSTION ENGINE
DE10346209A1 (en) Injector for fuel injection system of internal combustion engine, especially for directing injecting diesel engines, comprises nozzle needle which is in direct working connection with the piezo-actuator