ATE314575T1 - FUEL SYSTEM - Google Patents

FUEL SYSTEM

Info

Publication number
ATE314575T1
ATE314575T1 AT01303137T AT01303137T ATE314575T1 AT E314575 T1 ATE314575 T1 AT E314575T1 AT 01303137 T AT01303137 T AT 01303137T AT 01303137 T AT01303137 T AT 01303137T AT E314575 T1 ATE314575 T1 AT E314575T1
Authority
AT
Austria
Prior art keywords
fuel
valve needle
control
control valve
fuel system
Prior art date
Application number
AT01303137T
Other languages
German (de)
Inventor
Martin Burnell Roper
James Martin Anderton Askew
William John Milroy
Raymond Frederick Fairs
Mahesh Patel
Original Assignee
Woodward Governor Co
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 Woodward Governor Co filed Critical Woodward Governor Co
Application granted granted Critical
Publication of ATE314575T1 publication Critical patent/ATE314575T1/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
    • 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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
    • 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
    • F02M63/0005—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 valves actuated by fluid 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
    • F02M63/02—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
    • F02M63/0205—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 for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine

Abstract

A fuel system comprising a fuel injector (13) having a delivery chamber (18) for fuel, a valve needle (16) which is engageable with a seating to control fuel delivery through an outlet opening (20) and a control valve arrangement (28) for controlling communication between a source (10) of pressurised fuel and the delivery chamber (28). The fuel system further comprises means (34, 64) for applying a force to a surface of the valve needle (16) so as to urge the valve needle against the seating should the control valve arrangement (28) fail. The fuel system may be arranged such that, upon opening or closing movement of a control valve member (30) of the control valve arrangement (28), pressurised fuel is applied to a surface associated with the valve needle (16). This provides the advantage that opening or closing movement of the valve needle (16) is delayed, thereby enabling control and consistency of the injection of small amounts of fuel to be improved. <IMAGE>
AT01303137T 2000-04-07 2001-04-02 FUEL SYSTEM ATE314575T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0008598.5A GB0008598D0 (en) 2000-04-07 2000-04-07 Fuel system

Publications (1)

Publication Number Publication Date
ATE314575T1 true ATE314575T1 (en) 2006-01-15

Family

ID=9889443

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01303137T ATE314575T1 (en) 2000-04-07 2001-04-02 FUEL SYSTEM

Country Status (4)

Country Link
EP (1) EP1143139B1 (en)
AT (1) ATE314575T1 (en)
DE (1) DE60116173T2 (en)
GB (1) GB0008598D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI114502B (en) 2001-05-14 2004-10-29 Waertsilae Finland Oy Fuel Injection Arrangement
US7278593B2 (en) 2002-09-25 2007-10-09 Caterpillar Inc. Common rail fuel injector
US7021565B2 (en) 2004-02-10 2006-04-04 Caterpillar Inc. Pressure modulated common rail injector and system
US7111614B1 (en) 2005-08-29 2006-09-26 Caterpillar Inc. Single fluid injector with rate shaping capability

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548610A1 (en) * 1995-12-23 1997-06-26 Bosch Gmbh Robert Flow limiting valve for fuel injection system
DE19706467C1 (en) * 1997-02-19 1998-03-26 Daimler Benz Ag Fuel injector for multi-cylinder IC engines
DE19717419C1 (en) * 1997-04-25 1998-07-30 Daimler Benz Ag Injector valve for internal combustion engine of vehicle
ES2171038T3 (en) * 1997-07-16 2002-08-16 Wartsila France Sas FUEL INJECTION DEVICE FOR DIESEL ENGINES.
DE19742073A1 (en) * 1997-09-24 1999-03-25 Bosch Gmbh Robert Fuel injection arrangement for internal combustion engines
GB9905896D0 (en) * 1999-03-16 1999-05-05 Lucas Ind Plc Fuel injector arrangement
DE60022991T2 (en) * 1999-03-18 2006-07-13 Delphi Technologies, Inc., Troy FUEL INJECTOR

Also Published As

Publication number Publication date
EP1143139B1 (en) 2005-12-28
DE60116173T2 (en) 2006-08-31
EP1143139A1 (en) 2001-10-10
DE60116173D1 (en) 2006-02-02
GB0008598D0 (en) 2000-05-31

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