DE10344000A1 - Injection nozzle for internal combustion engine has activatable and deactivatable force generator that reduces or eliminates second closing force for second nozzle needle in activated state - Google Patents

Injection nozzle for internal combustion engine has activatable and deactivatable force generator that reduces or eliminates second closing force for second nozzle needle in activated state Download PDF

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Publication number
DE10344000A1
DE10344000A1 DE2003144000 DE10344000A DE10344000A1 DE 10344000 A1 DE10344000 A1 DE 10344000A1 DE 2003144000 DE2003144000 DE 2003144000 DE 10344000 A DE10344000 A DE 10344000A DE 10344000 A1 DE10344000 A1 DE 10344000A1
Authority
DE
Germany
Prior art keywords
force
deactivatable
activatable
eliminates
nozzle needle
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Withdrawn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
DE2003144000
Other languages
German (de)
Inventor
Matthias Schnell
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE2003144000 priority Critical patent/DE10344000A1/en
Priority to PCT/DE2004/001713 priority patent/WO2005038230A1/en
Publication of DE10344000A1 publication Critical patent/DE10344000A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/46—Valves, e.g. injectors, with concentric valve bodies

Abstract

The device has a nozzle body (2) with at least one first and second spray hole (5, 6), a first nozzle needle (8) in the form of a hollow needle, with which the injection of fuel via the at least one first spray hole can be controlled, a second nozzle needle (9) coaxial to the first for controlling fuel injection through the at least one second spray hole, a first spring (26) for introducing a first closing force in the closing direction of the first nozzle needle, a second spring (29) for introducing a second closing force in the closing direction of the second nozzle needle and an activatable and deactivatable force generator (34) that reduces or eliminates the second closing force in the activated state.
DE2003144000 2003-09-23 2003-09-23 Injection nozzle for internal combustion engine has activatable and deactivatable force generator that reduces or eliminates second closing force for second nozzle needle in activated state Withdrawn DE10344000A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2003144000 DE10344000A1 (en) 2003-09-23 2003-09-23 Injection nozzle for internal combustion engine has activatable and deactivatable force generator that reduces or eliminates second closing force for second nozzle needle in activated state
PCT/DE2004/001713 WO2005038230A1 (en) 2003-09-23 2004-07-30 Injection nozzle for an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003144000 DE10344000A1 (en) 2003-09-23 2003-09-23 Injection nozzle for internal combustion engine has activatable and deactivatable force generator that reduces or eliminates second closing force for second nozzle needle in activated state

Publications (1)

Publication Number Publication Date
DE10344000A1 true DE10344000A1 (en) 2005-04-21

Family

ID=34353017

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003144000 Withdrawn DE10344000A1 (en) 2003-09-23 2003-09-23 Injection nozzle for internal combustion engine has activatable and deactivatable force generator that reduces or eliminates second closing force for second nozzle needle in activated state

Country Status (2)

Country Link
DE (1) DE10344000A1 (en)
WO (1) WO2005038230A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104533684A (en) * 2014-11-26 2015-04-22 中国北方发动机研究所(天津) Double-control-valve multi-sealing-tape fuel nozzle
DE102020212697A1 (en) 2020-10-08 2022-04-14 Ford Global Technologies, Llc Method for increasing the proportion of oxidizable components in an exhaust gas stream of a 4-stroke diesel engine, injector, diesel engine and motor vehicle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59147862A (en) * 1983-02-12 1984-08-24 Toyota Motor Corp Fuel injection valve for diesel engine
JPS60228766A (en) * 1984-04-26 1985-11-14 Nissan Motor Co Ltd Fuel injection nozzle of direct-injection type diesel engine
US5899389A (en) * 1997-06-02 1999-05-04 Cummins Engine Company, Inc. Two stage fuel injector nozzle assembly
US6705543B2 (en) * 2001-08-22 2004-03-16 Cummins Inc. Variable pressure fuel injection system with dual flow rate injector
DE10141678A1 (en) * 2001-08-25 2003-05-08 Bosch Gmbh Robert Fuel injection device for an internal combustion engine
DE10141679A1 (en) * 2001-08-25 2003-03-06 Bosch Gmbh Robert Fuel injection device for an internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104533684A (en) * 2014-11-26 2015-04-22 中国北方发动机研究所(天津) Double-control-valve multi-sealing-tape fuel nozzle
CN104533684B (en) * 2014-11-26 2017-07-28 中国北方发动机研究所(天津) A kind of many band fuel nozzles of double control valve
DE102020212697A1 (en) 2020-10-08 2022-04-14 Ford Global Technologies, Llc Method for increasing the proportion of oxidizable components in an exhaust gas stream of a 4-stroke diesel engine, injector, diesel engine and motor vehicle
DE102020212697B4 (en) 2020-10-08 2022-08-25 Ford Global Technologies, Llc injector, diesel engine and motor vehicle

Also Published As

Publication number Publication date
WO2005038230A1 (en) 2005-04-28

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination