EP1598547A3 - Pump injector - Google Patents

Pump injector Download PDF

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Publication number
EP1598547A3
EP1598547A3 EP05010741A EP05010741A EP1598547A3 EP 1598547 A3 EP1598547 A3 EP 1598547A3 EP 05010741 A EP05010741 A EP 05010741A EP 05010741 A EP05010741 A EP 05010741A EP 1598547 A3 EP1598547 A3 EP 1598547A3
Authority
EP
European Patent Office
Prior art keywords
nozzle
pump
vorabsteuervolumen
chamber
pump injector
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Withdrawn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
EP05010741A
Other languages
German (de)
French (fr)
Other versions
EP1598547A2 (en
Inventor
Ralf Marohn
Peter Dr. Voigt
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.)
Continental Mechatronic Germany GmbH and Co KG
Original Assignee
Volkswagen Mechatronic GmbH and Co KG
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 Volkswagen Mechatronic GmbH and Co KG filed Critical Volkswagen Mechatronic GmbH and Co KG
Publication of EP1598547A2 publication Critical patent/EP1598547A2/en
Publication of EP1598547A3 publication Critical patent/EP1598547A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • F02M59/468—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means using piezoelectric operating means
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0049—Combined valve units, e.g. for controlling pumping chamber and injection valve
    • 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)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Es wird eine Pumpe-Düse-Einheit mit einem Vorabsteuervolumen beschrieben, dass nahe dem Ventilsitz des Steuerventils (7) angeordnet ist. Zur Ausbildung des Vorabsteuervolumens ist eine Drossel (23) vorgesehen, die das Vorabsteuervolumen mit den Kraftstoffleitungen, dem Druckraum (5) der Pumpe (2) und dem Düsenraum (10) der Düsennadel (11) verbindet. Durch das Vorabsteuervolumen werden geringere Druckschwankungen in der Kraftstoffleitung und im Düsenraum erzeugt. Dadurch wird die Geräuschemission der Pumpe-Düse-Einheit reduziert.

Figure imgaf001
A pump-nozzle unit having a pilot control volume located near the valve seat of the control valve (7) will be described. To form the Vorabsteuervolumens a throttle (23) is provided, which connects the Vorabsteuervolumen with the fuel lines, the pressure chamber (5) of the pump (2) and the nozzle chamber (10) of the nozzle needle (11). The Vorabsteuervolumen be produced less pressure fluctuations in the fuel line and in the nozzle chamber. This reduces the noise emission of the unit injector.
Figure imgaf001
EP05010741A 2004-05-19 2005-05-18 Pump injector Withdrawn EP1598547A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410024926 DE102004024926A1 (en) 2004-05-19 2004-05-19 Pump-nozzle unit
DE102004024926 2004-05-19

Publications (2)

Publication Number Publication Date
EP1598547A2 EP1598547A2 (en) 2005-11-23
EP1598547A3 true EP1598547A3 (en) 2006-03-15

Family

ID=34936631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05010741A Withdrawn EP1598547A3 (en) 2004-05-19 2005-05-18 Pump injector

Country Status (2)

Country Link
EP (1) EP1598547A3 (en)
DE (1) DE102004024926A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3700355A1 (en) * 1987-01-08 1988-07-21 Bosch Gmbh Robert Fuel injection device for internal combustion engines, especially a unit fuel injector
US20030111051A1 (en) * 2001-11-10 2003-06-19 Robert Bosch Gmbh Fuel injection apparatus for an internal combustion engine
WO2003067074A1 (en) * 2002-02-07 2003-08-14 Volkswagen Mechatronic Gmbh & Co. Kg Method and device for controlling a control valve of a pump-nozzle unit
WO2004003374A1 (en) * 2002-06-29 2004-01-08 Robert Bosch Gmbh Common rail injection system comprising a variable injector and booster device
DE10237593A1 (en) * 2002-08-16 2004-03-11 Robert Bosch Gmbh Fuel injector for internal combustion engine has cam working piston of pump connected to control valves and control system and includes pressure limiting valve
DE10246208A1 (en) * 2002-10-04 2004-04-15 Robert Bosch Gmbh Surge suppression device for storage injection system has equalizing device between high pressure storage cavity and fuel injector
US20040076530A1 (en) * 2000-12-07 2004-04-22 Spoolstra Gregg R. Pump system with high pressure restriction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10121891A1 (en) * 2001-05-05 2002-11-07 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
DE10131953A1 (en) * 2001-07-02 2003-01-23 Siemens Ag Control module for an injector of a storage injection system
DE10217592A1 (en) * 2002-04-19 2003-11-06 Siemens Ag Injector for the injection of fuel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3700355A1 (en) * 1987-01-08 1988-07-21 Bosch Gmbh Robert Fuel injection device for internal combustion engines, especially a unit fuel injector
US20040076530A1 (en) * 2000-12-07 2004-04-22 Spoolstra Gregg R. Pump system with high pressure restriction
US20030111051A1 (en) * 2001-11-10 2003-06-19 Robert Bosch Gmbh Fuel injection apparatus for an internal combustion engine
WO2003067074A1 (en) * 2002-02-07 2003-08-14 Volkswagen Mechatronic Gmbh & Co. Kg Method and device for controlling a control valve of a pump-nozzle unit
WO2004003374A1 (en) * 2002-06-29 2004-01-08 Robert Bosch Gmbh Common rail injection system comprising a variable injector and booster device
DE10237593A1 (en) * 2002-08-16 2004-03-11 Robert Bosch Gmbh Fuel injector for internal combustion engine has cam working piston of pump connected to control valves and control system and includes pressure limiting valve
DE10246208A1 (en) * 2002-10-04 2004-04-15 Robert Bosch Gmbh Surge suppression device for storage injection system has equalizing device between high pressure storage cavity and fuel injector

Also Published As

Publication number Publication date
DE102004024926A1 (en) 2005-12-15
EP1598547A2 (en) 2005-11-23

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