EP0375130A3 - Fuel injection nozzle - Google Patents

Fuel injection nozzle Download PDF

Info

Publication number
EP0375130A3
EP0375130A3 EP19890311383 EP89311383A EP0375130A3 EP 0375130 A3 EP0375130 A3 EP 0375130A3 EP 19890311383 EP19890311383 EP 19890311383 EP 89311383 A EP89311383 A EP 89311383A EP 0375130 A3 EP0375130 A3 EP 0375130A3
Authority
EP
European Patent Office
Prior art keywords
valve member
restrictor
fuel
piston
injection nozzle
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.)
Withdrawn
Application number
EP19890311383
Other languages
German (de)
French (fr)
Other versions
EP0375130A2 (en
Inventor
Paul Buckley
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of EP0375130A2 publication Critical patent/EP0375130A2/en
Publication of EP0375130A3 publication Critical patent/EP0375130A3/en
Withdrawn legal-status Critical Current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
    • 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

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

An inwardly opening fuel injection nozzle has a valve member which is biased into contact with a seating (15) by a spring (30). The force of the spring is transmitted to the valve member by a piston (22) slidable in a cylinder (21) formed in the valve member. A restrictor (27) communicates fuel under pressure from an inlet (26) to act on a surface (20) of the valve member to lift the valve member from the seating to allow the fuel flowing through the restrictor to flow through an outlet orifice (17). The piston (22) is also subject to the pressure downstream of the restrictor and when the pressure attains a predetermined value the piston moves relative to the valve member to uncover a port (28) which by-passes the restrictor to allow unrestricted flow of fuel through the outlet orifice.
EP19890311383 1988-12-20 1989-11-02 Fuel injection nozzle Withdrawn EP0375130A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888829699A GB8829699D0 (en) 1988-12-20 1988-12-20 Fuel injection nozzles
GB8829699 1988-12-20

Publications (2)

Publication Number Publication Date
EP0375130A2 EP0375130A2 (en) 1990-06-27
EP0375130A3 true EP0375130A3 (en) 1991-02-06

Family

ID=10648810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890311383 Withdrawn EP0375130A3 (en) 1988-12-20 1989-11-02 Fuel injection nozzle

Country Status (2)

Country Link
EP (1) EP0375130A3 (en)
GB (1) GB8829699D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408253B (en) * 1992-03-02 2001-10-25 Avl Verbrennungskraft Messtech Injection nozzle for an internal combustion engine
AT1624U1 (en) * 1995-03-30 1997-08-25 Avl Verbrennungskraft Messtech STORAGE INJECTION SYSTEM WITH PRE-INJECTION FOR AN INTERNAL COMBUSTION ENGINE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1342357A (en) * 1970-06-24 1974-01-03 Cav Ltd Fuel injection systems
GB1433513A (en) * 1972-07-18 1976-04-28 Bosch Gmbh Robert Fuel injection nozzle for internal combustion engines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1342357A (en) * 1970-06-24 1974-01-03 Cav Ltd Fuel injection systems
GB1433513A (en) * 1972-07-18 1976-04-28 Bosch Gmbh Robert Fuel injection nozzle for internal combustion engines

Also Published As

Publication number Publication date
GB8829699D0 (en) 1989-02-15
EP0375130A2 (en) 1990-06-27

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