EP1252432A2 - Direktgesteuerte kraftstoffeinspritzeinrichtung für eine kolbenbrennkraftmaschine - Google Patents
Direktgesteuerte kraftstoffeinspritzeinrichtung für eine kolbenbrennkraftmaschineInfo
- Publication number
- EP1252432A2 EP1252432A2 EP00988800A EP00988800A EP1252432A2 EP 1252432 A2 EP1252432 A2 EP 1252432A2 EP 00988800 A EP00988800 A EP 00988800A EP 00988800 A EP00988800 A EP 00988800A EP 1252432 A2 EP1252432 A2 EP 1252432A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- fuel injection
- injection device
- valve
- piston
- 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
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
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable pressure
-
- 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
- F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
-
- 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
- F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
- F02M63/0005—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using valves actuated by fluid pressure
-
- 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
- F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
- F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves
Definitions
- a ⁇ d ⁇ D DJ cn H s: cn ⁇ - 3 n £ ⁇ cn x- y ⁇ ⁇ ⁇ h- 1 ⁇ - ⁇ - ⁇ a 3
- valve system forming the other hand is connected and which can be adjusted via the actuator.
- the arrangement of such a pressure divider in the control part makes it possible to dynamically set the injection pressure desired in each case.
- the arrangement can be such that, depending on the type of actuator used, the injection pressure in front of a pressure-controlled injection nozzle can be adjusted via the actuating path of the actuator or via the force of the actuator.
- 1 is a circuit diagram of a fuel injection device
- FIG. 2 shows an exemplary embodiment of a fuel injection valve with a nozzle part and control part
- FIG. 6 shows a modified embodiment with a pressure divider integrated in the control part
- Fig. 7 shows the pressure divider. 6 on a larger scale
- control part 7 for example as a throttle valve, there is thus the possibility of influencing the volume flow flowing out of the high-pressure duct 8 into the connecting duct 6 by appropriately setting the opening cross section in the control part 7. Since the nozzle part 5 designed as an injection valve opens completely in the illustrated example when pressure is applied, the volume flow supplied to the nozzle part 5 can be varied during the opening period of the injection nozzle 13 by a corresponding change in the setting of the control part 7.
- control part 7 The structure and function of the control part 7 will be explained in more detail below using various exemplary embodiments.
- the actuator 20 is advantageously designed as a so-called solid-state actuator.
- a piezoelectric actuator is preferably used, which is designed to be voltage-proportional in relation to its travel or, due to its mechanical flexibility, its positioning force.
- a piezoelectric actuator it is also possible to use a magneto-strictive actuator which is designed to be proportional to the current in relation to its travel.
- solid-state actuators of this type are distinguished by a high switching speed, good controllability of the actuating travel and also large actuating forces and, moreover, act directly or possibly via a hydraulic stroke ratio on the actuating part in the control part 7, this also results in only short opening times for the nozzle part designed as an injection valve 5 the possibility of a targeted shaping of the injection rate, d. H. a targeted change in the volume flow introduced into the combustion chamber of the cylinder in question during the opening time of the injection valve.
- the passage cross section at the annular space 27.5 is then released so that the pressure in the connecting channel 6 can be reduced.
- the arrangement is dimensioned such that the release of the passage cross section to the annular space 27.5 is released practically simultaneously with the seating of the blocking part 23.2 on the valve seat 22.
- Relief valve 27 can be designed by appropriate dimensioning of the pressure reduction on the injection valve so that vapor bubbles are avoided. In the embodiment described in FIG. 4, this can be achieved by an additional pressure relief valve connected to line 17.
- control part 7 described with reference to FIGS. 3 and 4 can be used in the same way as described with reference to FIG. 2, namely as a structural unit combined with a nozzle part 5.
- schematic diagram gem. 1 it can be seen that for all designs of the control part 7 there is an arrangement in which the control part 7 is arranged separately from the nozzle part 5. Accordingly, according to the schematic representation. Fig. 1 the branch line 26 leading to the control part 7 indicated by dash-dotted lines.
- FIGS. 6 to 9 a modified embodiment of the injection nozzle according to FIG. Fig. 2 in the form of a
- a so-called pressure divider 30 is connected upstream of the valve arrangement 21.0.
- An embodiment of the pressure divider 30 is shown on a larger scale.
- the pressure divider consists essentially of a piston body 31 which is operatively connected at its upper end to the actuator 20 (arrow 20 in FIG. 7) and which is supported at its lower end via a spring plate 32 on a return spring 33.
- the piston body 31 is provided with a valve body 34 which interacts with a first valve seat 35.1. In the pressure-relieved state, the valve body 34 is pressed onto the first valve seat 35.1 by the return spring 33.
- valve body 34 On its side facing the return spring 33, the valve body 34 is assigned a second valve seat 35.2 which connects the annular space 37 to the outflow space 39 and which the valve body 34 closes the more the further it moves in the direction of the arrow 20.
- the valve body 34 thus forms with the valve seats 35.1 and 35.2 a 3/2-way proportional valve with 100% negative overlap.
- the pressure in the annular space 37 increases approximately linearly with the steep path of the valve body 34 from 0 bar when the valve body bears against the valve seat 35.1 up to the pressure prevailing in line 8 when the valve body bears against the valve seat 35.2.
- Valve seat 35.2 the pressure in the annular space 37 is fed back to the actuator 20, so that an electromagnetic actuator can also be used.
- the valve seat 35.2 can be designed as a barrel seat in order to minimize the requirements for manufacturing accuracy.
- a first annular space 36 is assigned to the valve body 34, into which a branch line 8.1 of the high-pressure line opens and which is closed by the closed position defined by the valve seat 35.1.
- the valve body 35 is arranged in a second annular space 37 which is connected to a pressure space 38 via an overflow line 8.2 OJ J to to 1
- a hydraulic path converter 43 as has already been described with reference to the embodiment of FIGS. 2 and 3.
- the unavoidable leakage losses in the hydraulic space of the hydraulic path translator are compensated for via a feed line 44.
- the path translation described can be combined with all the described variants of the injection system.
- FIG 10 shows an embodiment of the injection valve with a nozzle needle 9 that can be opened in two stages.
- the nozzle needle 9 is supported on a first soft
- the injection valve opens only by one stroke corresponding to dimension a. If the pressure chamber 10 is subjected to a pressure that is greater than the restoring force of the closing spring 16.2, the nozzle needle 9 is pushed back correspondingly far and the injection valve is opened completely.
- FIG. 11 shows a modification of the embodiment according to FIG. Fig. 10 shown.
- the closing spring 16 is supported on an evasive piston 16.5, which on its side remote from the closing spring has a pressure chamber 16.6, which is connected to the connecting channel 6 via a throttle 16.7.
- pressure-dependent dynamic guidance of the opening movement of the nozzle needle 9 is possible.
- a fuel injection device of the type according to the invention it is possible, even with high-speed diesel engines, in particular diesel engines for passenger cars, which can have speeds of 4,000 to 4,500 revolutions per minute under full load and which have high injection pressures of about 1,500 to 2,000 bar, short injection times of For example, to implement 1.5 milliseconds by direct control of the control part.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10001828A DE10001828A1 (de) | 2000-01-18 | 2000-01-18 | Direktgesteuerte Kraftstoffeinspritzeinrichtung für eine Kolbenbrennkraftmaschine |
DE10001828 | 2000-01-18 | ||
PCT/EP2000/012777 WO2001053688A2 (de) | 2000-01-18 | 2000-12-15 | Direktgesteuerte kraftstoffeinspritzeinrichtung für eine kolbenbrennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1252432A2 true EP1252432A2 (de) | 2002-10-30 |
EP1252432B1 EP1252432B1 (de) | 2005-11-09 |
Family
ID=7627829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00988800A Expired - Lifetime EP1252432B1 (de) | 2000-01-18 | 2000-12-15 | Direktgesteuerte kraftstoffeinspritzeinrichtung für eine kolbenbrennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6811103B2 (de) |
EP (1) | EP1252432B1 (de) |
JP (1) | JP2003520325A (de) |
AT (1) | ATE309461T1 (de) |
DE (2) | DE10001828A1 (de) |
WO (1) | WO2001053688A2 (de) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
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US20050039724A1 (en) * | 2001-10-16 | 2005-02-24 | Hiroyuki Ishida | Fuel injection device and diesel engine having the same, and fuel injection device controlling method |
DE10315016A1 (de) * | 2003-04-02 | 2004-10-28 | Robert Bosch Gmbh | Kraftstoffinjektor mit leckagefreiem Servoventil |
DE10342698A1 (de) * | 2003-09-16 | 2005-04-28 | Bosch Gmbh Robert | Druckgesteuerter CR-Injektor |
DE102004057610A1 (de) * | 2004-11-29 | 2006-06-01 | Fev Motorentechnik Gmbh | Kraftstoff-Injektor |
EP1744050B1 (de) * | 2005-07-13 | 2008-04-09 | Delphi Technologies, Inc. | Einspritzdüse |
US7111614B1 (en) * | 2005-08-29 | 2006-09-26 | Caterpillar Inc. | Single fluid injector with rate shaping capability |
DE102007002760A1 (de) * | 2007-01-18 | 2008-07-24 | Robert Bosch Gmbh | Kraftstoffinjektor mit integriertem Druckverstärker |
DE102007012604B4 (de) | 2007-03-13 | 2019-12-12 | FEV Europe GmbH | Verfahren zum Regeln einer Einspritzung eines Injektors einer direkteinspritzenden Verbrennungskraftmaschine und direkteinspritzende Verbrennungskraftmaschine |
CN102278248B (zh) | 2007-05-09 | 2013-08-28 | 斯德曼数字系统公司 | 具有主动针控制器的多级增强型喷射器的喷射方法 |
US8365700B2 (en) | 2008-01-07 | 2013-02-05 | Mcalister Technologies, Llc | Shaping a fuel charge in a combustion chamber with multiple drivers and/or ionization control |
US8225768B2 (en) | 2008-01-07 | 2012-07-24 | Mcalister Technologies, Llc | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
US8733331B2 (en) | 2008-01-07 | 2014-05-27 | Mcalister Technologies, Llc | Adaptive control system for fuel injectors and igniters |
US8413634B2 (en) | 2008-01-07 | 2013-04-09 | Mcalister Technologies, Llc | Integrated fuel injector igniters with conductive cable assemblies |
US8387599B2 (en) | 2008-01-07 | 2013-03-05 | Mcalister Technologies, Llc | Methods and systems for reducing the formation of oxides of nitrogen during combustion in engines |
US8074625B2 (en) | 2008-01-07 | 2011-12-13 | Mcalister Technologies, Llc | Fuel injector actuator assemblies and associated methods of use and manufacture |
US7628137B1 (en) | 2008-01-07 | 2009-12-08 | Mcalister Roy E | Multifuel storage, metering and ignition system |
US8561598B2 (en) | 2008-01-07 | 2013-10-22 | Mcalister Technologies, Llc | Method and system of thermochemical regeneration to provide oxygenated fuel, for example, with fuel-cooled fuel injectors |
US8635985B2 (en) | 2008-01-07 | 2014-01-28 | Mcalister Technologies, Llc | Integrated fuel injectors and igniters and associated methods of use and manufacture |
US20100012745A1 (en) | 2008-07-15 | 2010-01-21 | Sturman Digital Systems, Llc | Fuel Injectors with Intensified Fuel Storage and Methods of Operating an Engine Therewith |
DE102008047074B4 (de) * | 2008-09-12 | 2013-01-24 | Kendrion (Villingen) Gmbh | Rückschlagventilanordnung und Verfahren zum Betreiben einer Common-Rail-Rückschlagventilanordnung |
WO2010121634A1 (de) * | 2009-04-24 | 2010-10-28 | Fev Motorentechnik Gmbh | Kraftstoffeinspritzvorrichtung für eine verbrennungskraftmaschine, verbrennungskraftmaschine und verfahren zur kraftstoffeinspritzung in eine verbrennungskraftmaschine |
EP2470770B1 (de) * | 2009-08-27 | 2015-02-18 | McAlister Technologies, LLC | Brennstoffeinspritz-aktuatorbaugruppen sowie entsprechende verfahren zu ihrer herstellung und verwendung |
CN102713244A (zh) | 2009-08-27 | 2012-10-03 | 麦卡利斯特技术有限责任公司 | 在具有多个驱动器和/或电离控制的燃烧室中成形供应燃料 |
KR101179798B1 (ko) * | 2009-08-27 | 2012-09-04 | 맥알리스터 테크놀로지즈 엘엘씨 | 세라믹 절연체 및 이의 이용 및 제조방법 |
CN102712540B (zh) | 2009-08-27 | 2014-12-17 | 麦卡利斯特技术有限责任公司 | 陶瓷绝缘体及其使用和制造方法 |
CN102844540A (zh) | 2010-02-13 | 2012-12-26 | 麦卡利斯特技术有限责任公司 | 用于自适应地冷却发动机中的燃烧室的方法和系统 |
US20110297753A1 (en) | 2010-12-06 | 2011-12-08 | Mcalister Roy E | Integrated fuel injector igniters configured to inject multiple fuels and/or coolants and associated methods of use and manufacture |
EP2534364A4 (de) | 2010-02-13 | 2014-04-23 | Mcalister Technologies Llc | Brennstoffeinspritzbaugruppen mit akustischen kraftverstärkern sowie verfahren zu ihrer verwendung und herstellung |
US8528519B2 (en) | 2010-10-27 | 2013-09-10 | Mcalister Technologies, Llc | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
US8091528B2 (en) | 2010-12-06 | 2012-01-10 | Mcalister Technologies, Llc | Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and associated methods of use and manufacture |
EP2660460B1 (de) * | 2010-12-28 | 2017-03-08 | Hyundai Heavy Industries Co., Ltd. | Elektronisch gesteuertes kraftstoffeinspritzventil |
US8820275B2 (en) | 2011-02-14 | 2014-09-02 | Mcalister Technologies, Llc | Torque multiplier engines |
EP2742218A4 (de) | 2011-08-12 | 2015-03-25 | Mcalister Technologies Llc | Systeme und verfahren zur verbesserten motorkühlung und energieerzeugung |
WO2013025626A1 (en) | 2011-08-12 | 2013-02-21 | Mcalister Technologies, Llc | Acoustically actuated flow valve assembly including a plurality of reed valves |
US20140131466A1 (en) | 2012-11-12 | 2014-05-15 | Advanced Green Innovations, LLC | Hydraulic displacement amplifiers for fuel injectors |
US9309846B2 (en) | 2012-11-12 | 2016-04-12 | Mcalister Technologies, Llc | Motion modifiers for fuel injection systems |
US9181890B2 (en) | 2012-11-19 | 2015-11-10 | Sturman Digital Systems, Llc | Methods of operation of fuel injectors with intensified fuel storage |
US9255450B2 (en) | 2013-04-17 | 2016-02-09 | Baker Hughes Incorporated | Drill bit with self-adjusting pads |
DE102013220584A1 (de) * | 2013-10-11 | 2015-04-16 | Robert Bosch Gmbh | Steuerventil |
US10041305B2 (en) * | 2015-09-11 | 2018-08-07 | Baker Hughes Incorporated | Actively controlled self-adjusting bits and related systems and methods |
US10273759B2 (en) | 2015-12-17 | 2019-04-30 | Baker Hughes Incorporated | Self-adjusting earth-boring tools and related systems and methods |
US10633929B2 (en) | 2017-07-28 | 2020-04-28 | Baker Hughes, A Ge Company, Llc | Self-adjusting earth-boring tools and related systems |
DE102018208859A1 (de) * | 2018-06-06 | 2019-12-12 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Kraftstoffinjektors, Kraftstoffinjektor |
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DE4341546A1 (de) * | 1993-12-07 | 1995-06-08 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
US5526791A (en) | 1995-06-07 | 1996-06-18 | Diesel Technology Company | High-pressure electromagnetic fuel injector |
GB9616521D0 (en) * | 1996-08-06 | 1996-09-25 | Lucas Ind Plc | Injector |
DE19706467C1 (de) * | 1997-02-19 | 1998-03-26 | Daimler Benz Ag | Speichereinspritzsystem für eine mehrzylindrige Brennkraftmaschine |
DE29708369U1 (de) * | 1997-05-09 | 1997-07-10 | Fev Motorentech Gmbh & Co Kg | Steuerbares Einspritzventil für die Kraftstoffeinspritzung an Brennkraftmaschinen |
DE29717649U1 (de) * | 1997-10-02 | 1997-11-20 | Fev Motorentech Gmbh & Co Kg | Direktgesteuertes Einspritzventil, insbesondere Kraftstoffeinspritzventil |
-
2000
- 2000-01-18 DE DE10001828A patent/DE10001828A1/de not_active Withdrawn
- 2000-12-15 JP JP2001553525A patent/JP2003520325A/ja not_active Withdrawn
- 2000-12-15 AT AT00988800T patent/ATE309461T1/de not_active IP Right Cessation
- 2000-12-15 WO PCT/EP2000/012777 patent/WO2001053688A2/de active IP Right Grant
- 2000-12-15 EP EP00988800A patent/EP1252432B1/de not_active Expired - Lifetime
- 2000-12-15 DE DE50011592T patent/DE50011592D1/de not_active Expired - Lifetime
- 2000-12-15 US US10/181,570 patent/US6811103B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0153688A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2001053688A2 (de) | 2001-07-26 |
US6811103B2 (en) | 2004-11-02 |
ATE309461T1 (de) | 2005-11-15 |
DE10001828A1 (de) | 2001-07-19 |
WO2001053688A3 (de) | 2002-05-23 |
EP1252432B1 (de) | 2005-11-09 |
US20030146305A1 (en) | 2003-08-07 |
JP2003520325A (ja) | 2003-07-02 |
DE50011592D1 (de) | 2005-12-15 |
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