EP1033488A3 - Fuel injector - Google Patents

Fuel injector Download PDF

Info

Publication number
EP1033488A3
EP1033488A3 EP00301797A EP00301797A EP1033488A3 EP 1033488 A3 EP1033488 A3 EP 1033488A3 EP 00301797 A EP00301797 A EP 00301797A EP 00301797 A EP00301797 A EP 00301797A EP 1033488 A3 EP1033488 A3 EP 1033488A3
Authority
EP
European Patent Office
Prior art keywords
seating
bore
fuel injector
valve member
engageable
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
EP00301797A
Other languages
German (de)
French (fr)
Other versions
EP1033488B1 (en
EP1033488A2 (en
Inventor
Malcom David Dick Lambert
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
Priority claimed from GBGB9904938.9A external-priority patent/GB9904938D0/en
Priority claimed from GBGB9911145.2A external-priority patent/GB9911145D0/en
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1033488A2 publication Critical patent/EP1033488A2/en
Publication of EP1033488A3 publication Critical patent/EP1033488A3/en
Application granted granted Critical
Publication of EP1033488B1 publication Critical patent/EP1033488B1/en
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
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F02M61/163—Means being injection-valves with helically or spirally shaped grooves
    • 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
    • F02M45/086—Having more than one injection-valve controlling discharge orifices
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-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
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for

Abstract

A fuel injector comprising a nozzle body (10) provided with a first bore (11) and defining a first seating (12), a valve member (13) engageable with the first seating (12) to control fuel flow from the first bore (11) towards an outlet opening (14) located downstream of the first seating (12), the valve member (13) being provided with a second bore (15) defining a second seating (17). A valve needle (16) is slidable within the second bore (15) and is engageable with the second seating (17) to control fuel flow from the second bore (15) towards a second outlet opening (18,28) provided in the valve member (13). The fuel injector also includes a transmission arrangement whereby movement of the valve needle (16) beyond a predetermined position is transmitted to the valve member (13).
EP20000301797 1999-03-04 2000-03-06 Fuel injector Expired - Lifetime EP1033488B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9904938 1999-03-04
GBGB9904938.9A GB9904938D0 (en) 1999-03-04 1999-03-04 Fuel injector
GBGB9911145.2A GB9911145D0 (en) 1999-05-14 1999-05-14 Fuel injector
GB9911145 1999-05-14

Publications (3)

Publication Number Publication Date
EP1033488A2 EP1033488A2 (en) 2000-09-06
EP1033488A3 true EP1033488A3 (en) 2002-03-06
EP1033488B1 EP1033488B1 (en) 2005-10-19

Family

ID=26315219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000301797 Expired - Lifetime EP1033488B1 (en) 1999-03-04 2000-03-06 Fuel injector

Country Status (2)

Country Link
EP (1) EP1033488B1 (en)
DE (1) DE60023203T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155227A1 (en) * 2001-11-09 2003-05-22 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
EP1498601A1 (en) * 2003-07-16 2005-01-19 Delphi Technologies, Inc. Fuel nozzle
DE102005001284A1 (en) * 2005-01-11 2006-07-20 Siemens Ag Fuel injector for internal combustion engine, has nozzle unit including needle guiding body with borehole such that inner nozzle needle is guided in borehole, and borehole is partially designed as inner needle guidances for inner needle
DE102005037956A1 (en) * 2005-08-11 2007-02-15 Robert Bosch Gmbh Split injection valve member with double seat
DE102005046665A1 (en) * 2005-09-29 2007-04-05 Robert Bosch Gmbh Fuel injection valve for e.g. self-ignition internal combustion engine, has inclined groove formed at valve seat near guide section of inner needle, such that tangential force is exerted on needle during flow of fuel
CN109812364B (en) * 2019-04-22 2019-07-16 常州江苏大学工程技术研究院 A kind of valve seat and spiral inclined in type nozzle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284687B (en) * 1967-10-18 1968-12-05 Bosch Gmbh Robert Fuel injection valve for pilot and main injection
DD102198A1 (en) * 1973-02-02 1973-12-05
US4202500A (en) * 1977-03-09 1980-05-13 Maschinenfabrik Augsburg-Nuernberg Aktiengesellschaft Multi-hole injection nozzle
US4339080A (en) * 1977-11-04 1982-07-13 Robert Bosch Gmbh Fuel injection nozzle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284687B (en) * 1967-10-18 1968-12-05 Bosch Gmbh Robert Fuel injection valve for pilot and main injection
DD102198A1 (en) * 1973-02-02 1973-12-05
US4202500A (en) * 1977-03-09 1980-05-13 Maschinenfabrik Augsburg-Nuernberg Aktiengesellschaft Multi-hole injection nozzle
US4339080A (en) * 1977-11-04 1982-07-13 Robert Bosch Gmbh Fuel injection nozzle

Also Published As

Publication number Publication date
EP1033488B1 (en) 2005-10-19
DE60023203T2 (en) 2006-08-24
EP1033488A2 (en) 2000-09-06
DE60023203D1 (en) 2006-03-02

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