EP1598547A3 - Pump injector - Google Patents
Pump injector Download PDFInfo
- 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- Withdrawn
Links
- 239000000446 fuel Substances 0.000 abstract 2
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. 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.
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)
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)
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 |
-
2004
- 2004-05-19 DE DE200410024926 patent/DE102004024926A1/en not_active Withdrawn
-
2005
- 2005-05-18 EP EP05010741A patent/EP1598547A3/en not_active Withdrawn
Patent Citations (7)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
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AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
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AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F02M 63/00 20060101ALI20060124BHEP Ipc: F02M 59/46 20060101ALI20060124BHEP Ipc: F02M 59/36 20060101ALI20060124BHEP Ipc: F02M 57/02 20060101AFI20050727BHEP |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB IT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20060916 |