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DE10346210A1 - Fuel injection unit for internal combustion engine of motor vehicle, comprises flow section between pressure chamber and the connection to the release section - Google Patents

Fuel injection unit for internal combustion engine of motor vehicle, comprises flow section between pressure chamber and the connection to the release section Download PDF

Info

Publication number
DE10346210A1
DE10346210A1 DE2003146210 DE10346210A DE10346210A1 DE 10346210 A1 DE10346210 A1 DE 10346210A1 DE 2003146210 DE2003146210 DE 2003146210 DE 10346210 A DE10346210 A DE 10346210A DE 10346210 A1 DE10346210 A1 DE 10346210A1
Authority
DE
Germany
Prior art keywords
section
pressure chamber
connection
combustion engine
internal combustion
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Withdrawn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
DE2003146210
Other languages
German (de)
Inventor
Henning Hermes
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 DE2003146210 priority Critical patent/DE10346210A1/en
Priority to PCT/DE2004/001769 priority patent/WO2005045227A1/en
Publication of DE10346210A1 publication Critical patent/DE10346210A1/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Withdrawn legal-status Critical Current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
    • 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
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
    • F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations

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

A flow section is provided between the pressure chamber (40) and the connection (52) to the release section (24). The flow section is dependent on the lift of the injection valve member (28) by a slide valve (58). When the injection valve member is arranged in the closed position, only a small flow rate section which forms a throttle point (59) is freed. When the injection valve member is moved in the opening direction (29), a larger flow section is freed.
DE2003146210 2003-10-06 2003-10-06 Fuel injection unit for internal combustion engine of motor vehicle, comprises flow section between pressure chamber and the connection to the release section Withdrawn DE10346210A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2003146210 DE10346210A1 (en) 2003-10-06 2003-10-06 Fuel injection unit for internal combustion engine of motor vehicle, comprises flow section between pressure chamber and the connection to the release section
PCT/DE2004/001769 WO2005045227A1 (en) 2003-10-06 2004-08-06 Fuel injection device for an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003146210 DE10346210A1 (en) 2003-10-06 2003-10-06 Fuel injection unit for internal combustion engine of motor vehicle, comprises flow section between pressure chamber and the connection to the release section

Publications (1)

Publication Number Publication Date
DE10346210A1 true DE10346210A1 (en) 2005-04-21

Family

ID=34353325

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003146210 Withdrawn DE10346210A1 (en) 2003-10-06 2003-10-06 Fuel injection unit for internal combustion engine of motor vehicle, comprises flow section between pressure chamber and the connection to the release section

Country Status (2)

Country Link
DE (1) DE10346210A1 (en)
WO (1) WO2005045227A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60132065A (en) * 1983-12-20 1985-07-13 Nissan Motor Co Ltd Fuel injection nozzle
US5299919A (en) * 1991-11-01 1994-04-05 Paul Marius A Fuel injector system
DE4211651B4 (en) * 1992-04-07 2004-11-18 Robert Bosch Gmbh Fuel injection device, in particular pump nozzle for internal combustion engines
US6161773A (en) * 1994-05-31 2000-12-19 Caterpillar Inc. Fuel injector nozzle with guide to check clearance passage providing injection rate shaping
GB9623469D0 (en) * 1996-11-12 1997-01-08 Lucas Ind Plc Injector

Also Published As

Publication number Publication date
WO2005045227A1 (en) 2005-05-19

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee