EP0826877A3 - Elektro-hydraulisch betätigtes Kraftstoffeinspritzventil mit einer Düsennadel, die direkt angesteuert wird - Google Patents

Elektro-hydraulisch betätigtes Kraftstoffeinspritzventil mit einer Düsennadel, die direkt angesteuert wird Download PDF

Info

Publication number
EP0826877A3
EP0826877A3 EP97306118A EP97306118A EP0826877A3 EP 0826877 A3 EP0826877 A3 EP 0826877A3 EP 97306118 A EP97306118 A EP 97306118A EP 97306118 A EP97306118 A EP 97306118A EP 0826877 A3 EP0826877 A3 EP 0826877A3
Authority
EP
European Patent Office
Prior art keywords
needle
actuation fluid
needle valve
injector
hydraulically
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
EP97306118A
Other languages
English (en)
French (fr)
Other versions
EP0826877A2 (de
EP0826877B1 (de
Inventor
Shikui K. Chen
Gregory W. Hefler
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.)
Caterpillar Inc
Original Assignee
Caterpillar Inc
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
Priority claimed from US08/707,804 external-priority patent/US5687693A/en
Priority claimed from US08/768,014 external-priority patent/US5826562A/en
Application filed by Caterpillar Inc filed Critical Caterpillar Inc
Priority to EP01117614A priority Critical patent/EP1152145B1/de
Priority to EP01117613A priority patent/EP1152144B1/de
Publication of EP0826877A2 publication Critical patent/EP0826877A2/de
Publication of EP0826877A3 publication Critical patent/EP0826877A3/de
Application granted granted Critical
Publication of EP0826877B1 publication Critical patent/EP0826877B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • F02M57/026—Construction details of pressure amplifiers, e.g. fuel passages or check valves arranged in the intensifier piston or head, particular diameter relationships, stop members, arrangement of ports or conduits
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
    • 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
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • 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
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • 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
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0028—Valves characterised by the valve actuating means hydraulic
    • F02M63/0029—Valves characterised by the valve actuating means hydraulic using a pilot valve controlling a hydraulic chamber
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • F02M63/0042—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing combined with valve seats of the lift valve type
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0045—Three-way valves
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0049—Combined valve units, e.g. for controlling pumping chamber and injection valve
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
    • F02M2200/502—Springs biasing the valve member to the open position
EP19970306118 1996-08-30 1997-08-12 Elektro-hydraulisch betätigtes Kraftstoffeinspritzventil mit einer Düsennadel, die direkt angesteuert wird Expired - Lifetime EP0826877B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01117614A EP1152145B1 (de) 1996-08-30 1997-08-12 Elektro-hydraulisch betätigtes Kraftstoffeinspritzventil mit einer Düsennadel, die direkt angesteuert wird
EP01117613A EP1152144B1 (de) 1996-08-30 1997-08-12 Elektro-hydraulisch betätigtes Kraftstoffeinspritzventil mit einer Düsennadel, die direkt angesteuert wird

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US707804 1996-08-30
US08/707,804 US5687693A (en) 1994-07-29 1996-08-30 Hydraulically-actuated fuel injector with direct control needle valve
US768014 1996-12-13
US08/768,014 US5826562A (en) 1994-07-29 1996-12-13 Piston and barrell assembly with stepped top and hydraulically-actuated fuel injector utilizing same
US864606 1997-05-28
US08/864,606 US5738075A (en) 1994-07-29 1997-05-28 Hydraulically-actuated fuel injector with direct control needle valve

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP01117613A Division EP1152144B1 (de) 1996-08-30 1997-08-12 Elektro-hydraulisch betätigtes Kraftstoffeinspritzventil mit einer Düsennadel, die direkt angesteuert wird
EP01117614A Division EP1152145B1 (de) 1996-08-30 1997-08-12 Elektro-hydraulisch betätigtes Kraftstoffeinspritzventil mit einer Düsennadel, die direkt angesteuert wird

Publications (3)

Publication Number Publication Date
EP0826877A2 EP0826877A2 (de) 1998-03-04
EP0826877A3 true EP0826877A3 (de) 1998-05-06
EP0826877B1 EP0826877B1 (de) 2003-03-26

Family

ID=27418832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970306118 Expired - Lifetime EP0826877B1 (de) 1996-08-30 1997-08-12 Elektro-hydraulisch betätigtes Kraftstoffeinspritzventil mit einer Düsennadel, die direkt angesteuert wird

Country Status (3)

Country Link
EP (1) EP0826877B1 (de)
JP (1) JPH10110658A (de)
DE (3) DE69729333T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6129072A (en) * 1999-04-02 2000-10-10 Caterpillar Inc. Hydraulically actuated device having a ball valve member
DE19937713C1 (de) * 1999-08-10 2001-03-15 Siemens Ag Steuerventilanordnung zum Einsatz in einem Kraftstoffinjektor für Verbrennungsmotoren
JP2001304072A (ja) 2000-04-20 2001-10-31 Toyota Industries Corp コモンレール式燃料噴射装置
DE10126685A1 (de) * 2001-06-01 2002-12-19 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung mit Druckverstärker
JP4710853B2 (ja) * 2007-03-05 2011-06-29 株式会社デンソー 燃料噴射装置
EP2478210A4 (de) * 2009-09-17 2013-06-05 Int Engine Intellectual Prop Hochdruckbrennstoffeinspritzer
CN109695511B (zh) * 2019-02-21 2024-01-09 重油高科电控燃油喷射系统有限公司 多缸发动机共轨燃油喷射系统
DE102021206997A1 (de) * 2021-07-05 2023-01-05 Robert Bosch Gesellschaft mit beschränkter Haftung Injektor und Anordnung mit einem Injektor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837324A (en) * 1972-03-22 1974-09-24 Bosch Gmbh Robert Fuel injection system for internal combustion engines
JPS59141763A (ja) * 1983-02-03 1984-08-14 Nissan Motor Co Ltd 燃料噴射装置
DE4118237A1 (de) * 1990-06-08 1991-12-12 Avl Verbrennungskraft Messtech Einspritzsystem fuer brennkraftmaschinen
US5143291A (en) * 1992-03-16 1992-09-01 Navistar International Transportation Corp. Two-stage hydraulic electrically-controlled unit injector
US5271371A (en) * 1991-10-11 1993-12-21 Caterpillar Inc. Actuator and valve assembly for a hydraulically-actuated electronically-controlled injector
EP0641931A1 (de) * 1993-09-06 1995-03-08 Servojet Electronic Systems, Ltd. Speicher-Kraffstoffeinspritzsystem
US5522545A (en) * 1995-01-25 1996-06-04 Caterpillar Inc. Hydraulically actuated fuel injector
DE19523878A1 (de) * 1995-06-30 1997-01-09 Mtu Friedrichshafen Gmbh Vorrichtung und Verfahren zum Einspritzen von Kraftstoff und einem zweiten Fluid in einen Brennraum eines Dieselmotors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121730A (en) 1991-10-11 1992-06-16 Caterpillar Inc. Methods of conditioning fluid in an electronically-controlled unit injector for starting
US5297523A (en) 1993-02-26 1994-03-29 Caterpillar Inc. Tuned actuating fluid inlet manifold for a hydraulically-actuated fuel injection system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837324A (en) * 1972-03-22 1974-09-24 Bosch Gmbh Robert Fuel injection system for internal combustion engines
JPS59141763A (ja) * 1983-02-03 1984-08-14 Nissan Motor Co Ltd 燃料噴射装置
DE4118237A1 (de) * 1990-06-08 1991-12-12 Avl Verbrennungskraft Messtech Einspritzsystem fuer brennkraftmaschinen
US5271371A (en) * 1991-10-11 1993-12-21 Caterpillar Inc. Actuator and valve assembly for a hydraulically-actuated electronically-controlled injector
US5143291A (en) * 1992-03-16 1992-09-01 Navistar International Transportation Corp. Two-stage hydraulic electrically-controlled unit injector
EP0641931A1 (de) * 1993-09-06 1995-03-08 Servojet Electronic Systems, Ltd. Speicher-Kraffstoffeinspritzsystem
US5522545A (en) * 1995-01-25 1996-06-04 Caterpillar Inc. Hydraulically actuated fuel injector
DE19523878A1 (de) * 1995-06-30 1997-01-09 Mtu Friedrichshafen Gmbh Vorrichtung und Verfahren zum Einspritzen von Kraftstoff und einem zweiten Fluid in einen Brennraum eines Dieselmotors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 270 (M - 344) 11 December 1984 (1984-12-11) *

Also Published As

Publication number Publication date
DE69720123D1 (de) 2003-04-30
DE69720123T2 (de) 2004-01-29
EP0826877A2 (de) 1998-03-04
DE69727713D1 (de) 2004-03-25
EP0826877B1 (de) 2003-03-26
DE69729333D1 (de) 2004-07-01
JPH10110658A (ja) 1998-04-28
DE69729333T2 (de) 2004-09-23
DE69727713T2 (de) 2004-11-25

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