ES2167680T3 - Sistema de inyeccion de combustible. - Google Patents

Sistema de inyeccion de combustible.

Info

Publication number
ES2167680T3
ES2167680T3 ES97302711T ES97302711T ES2167680T3 ES 2167680 T3 ES2167680 T3 ES 2167680T3 ES 97302711 T ES97302711 T ES 97302711T ES 97302711 T ES97302711 T ES 97302711T ES 2167680 T3 ES2167680 T3 ES 2167680T3
Authority
ES
Spain
Prior art keywords
spring
hole
injection system
nozzle
fuel injection
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.)
Expired - Lifetime
Application number
ES97302711T
Other languages
English (en)
Inventor
Martin Paul Hardy
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies 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
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Application granted granted Critical
Publication of ES2167680T3 publication Critical patent/ES2167680T3/es
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
    • 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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • 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
    • F02M45/06—Pumps peculiar thereto
    • 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
    • F02M45/08—Injectors peculiar thereto
    • 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
    • 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
    • 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
    • F02M2200/505—Adjusting spring tension by sliding spring seats

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

UN SISTEMA DE INYECCION DE COMBUSTIBLE INCLUYE UN EMBOLO DE BOMBEO (12) DESLIZANTE DENTRO DE UN AGUJERO (11) Y DISPUESTO PARA SUMINISTRAR COMBUSTIBLE A UNA BOQUILLA DE INYECTOR (15). UNA VALVULA DE DERRAME (32) SE COMUNICA CON EL AGUJERO (11) PARA CONTROLAR LA PRESION DE COMBUSTIBLE APLICADA A LA BOQUILLA (15). LA BOQUILLA (15) INCLUYE UN ELEMENTO DE VALVULA POLARIZADA EN EL ACOPLAMIENTO CON UN ASIENTO POR UN MUELLE (24), ACOPLANDO EL MUELLE (24) UN ELEMENTO DE PISTON (27) AL MENOS PARTE DEL EXTREMO DEL CUAL ALEJADO DEL MUELLE (24) SE EXPONE A LA PRESION DE COMBUSTIBLE EN EL AGUJERO (11). LA VALVULA DE DERRAME (32) INCLUYE UNA CONEXION DE FLUJO (36) QUE SE COMUNICA MEDIANTE UN DISPOSITIVO DE LIMITACION CON UN DRENAJE. EL DISPOSITIVO DE LIMITACION SE FORMA POR EL ELEMENTO DE PISTON (27) Y UN CILINDRO (26) DENTRO DEL CUAL SE PUEDE DESLIZAR EL ELEMENTO DE PISTON (27).
ES97302711T 1996-05-03 1997-04-21 Sistema de inyeccion de combustible. Expired - Lifetime ES2167680T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9609382.8A GB9609382D0 (en) 1996-05-03 1996-05-03 Fuel injection system

Publications (1)

Publication Number Publication Date
ES2167680T3 true ES2167680T3 (es) 2002-05-16

Family

ID=10793214

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97302711T Expired - Lifetime ES2167680T3 (es) 1996-05-03 1997-04-21 Sistema de inyeccion de combustible.

Country Status (5)

Country Link
US (1) US5871154A (es)
EP (1) EP0805271B1 (es)
DE (1) DE69709571T2 (es)
ES (1) ES2167680T3 (es)
GB (1) GB9609382D0 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2325024B (en) * 1996-07-25 1999-10-13 Cummins Engine Co Inc A fuel injection system and a unit fuel injector
US6145762A (en) * 1998-10-19 2000-11-14 Cummins Engine Company, Inc. Variable rate spring for a fuel injector
DE10116635A1 (de) * 2001-04-04 2002-10-17 Bosch Gmbh Robert Verfahren zum Betreiben einer Pumpe-Düse-Einheit sowie Pumpe-Düse-Einheit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105406B (en) * 1981-09-05 1985-02-27 Lucas Ind Plc Fuel injection nozzle systems for compression ignition engines
DE3409924A1 (de) * 1983-03-31 1984-10-11 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH, Prof. Dr.Dr.h.c. Hans List, Graz Duesenhalter fuer eine kraftstoffeinspritzduese
JP2523759B2 (ja) * 1987-02-04 1996-08-14 フエスト − アルピネ オウトモチブ ゲゼルシャフト ミットベシュレンクテル ハフツンク 燃料噴射ノズル
GB8828157D0 (en) * 1988-12-02 1989-01-05 Lucas Ind Plc Fuel injection nozzles
US5335852A (en) * 1993-01-28 1994-08-09 Cummins Engine Company, Inc. Lubrication oil controlled unit injector
DE4341546A1 (de) * 1993-12-07 1995-06-08 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
US5632444A (en) * 1995-04-13 1997-05-27 Caterpillar Inc. Fuel injection rate shaping apparatus for a unit injector
US5673853A (en) * 1995-09-13 1997-10-07 Cummins Engine Company, Inc. Electromagnetic fuel injector control valve

Also Published As

Publication number Publication date
EP0805271A1 (en) 1997-11-05
DE69709571T2 (de) 2002-08-08
EP0805271B1 (en) 2002-01-16
US5871154A (en) 1999-02-16
DE69709571D1 (de) 2002-02-21
GB9609382D0 (en) 1996-07-10

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