EP1206638A1 - Method for dosing a fuel injection valve - Google Patents
Method for dosing a fuel injection valveInfo
- Publication number
- EP1206638A1 EP1206638A1 EP00963875A EP00963875A EP1206638A1 EP 1206638 A1 EP1206638 A1 EP 1206638A1 EP 00963875 A EP00963875 A EP 00963875A EP 00963875 A EP00963875 A EP 00963875A EP 1206638 A1 EP1206638 A1 EP 1206638A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- valve
- control signal
- internal combustion
- combustion engine
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 174
- 238000002347 injection Methods 0.000 title claims abstract description 48
- 239000007924 injection Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims description 12
- 230000001419 dependent effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 10
- 230000006870 function Effects 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000003831 deregulation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D41/2096—Output circuits, e.g. for controlling currents in command coils for controlling piezoelectric injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2464—Characteristics of actuators
- F02D41/2467—Characteristics of actuators for injectors
-
- 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
- F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements
Definitions
- the invention relates to a fuel injector according to the preamble of the main claim.
- a control unit causes the setting parameters to be varied until the smooth running of the internal combustion engine is adjusted to the desired value.
- the setting parameters on which the target value is reached are then identified in the operating point as new, optimized values of the Injection map and replace the previous setting parameters.
- the method known from DE 196 42 653 C1 for metering fuel with a fuel injection valve has the disadvantage that the internal combustion engine must first be run in to determine the injection map.
- the optimization of the valve lift and the injection period depend essentially on the setpoints of the control unit, so that an ideal operating point may not be reached under certain circumstances. It can also be used in a z. B. age-related decrease in the smooth running of the internal combustion engine due to a measured, but not based on the setting parameters, deviation of the smooth running of the internal combustion engine from a desired value to deregulation of the setting parameters at the operating point of the internal combustion engine.
- the smooth running of the internal combustion engine depends on numerous factors, such as. B. from the composition and the temperature of the supplied air or the engine temperature, so that the specification of the setpoint values assigned to the injection map is problematic.
- Another disadvantage is that for each combination of speed and load, both the valve lift and the injection time must be stored, which requires a large amount of memory in a non-volatile memory.
- DE 40 05 455 AI discloses a fuel injection valve with a piezoelectric actuator and a valve closing body which can be actuated by the actuator with a valve lift and which cooperates with a valve seat surface provided on a valve seat carrier to form a sealing seat. To open the sealing seat, a voltage is applied to the actuator, which is switched off to close the sealing seat.
- the fuel injector has a fuel inlet connection, via which fuel is fed into the fuel injector. With a fuel pump that is in the fuel injector passed fuel with a fuel inlet pressure.
- the fuel injector known from DE 40 05 455 AI has the following disadvantages.
- a high fuel inlet pressure is required for the given stroke of the valve needle and a given maximum switching time.
- the switching time of the fuel injector can first be shortened. Since fuel is also sprayed out of the fuel injector during the opening and closing process, short switching times which are in the range of the opening and closing times of the fuel injector result in a non-reproducible delivery of fuel. For e.g. B. required in idle small amounts of fuel, the amount of fuel delivered can therefore no longer be adjusted by the switching time.
- the fuel inlet pressure In order to be able to dispense the required minimum quantity, the fuel inlet pressure must therefore be reduced. The situation is particularly problematic in the case of supercharged engines, since the short maximum injection time means that extremely short switching times are required, and a pressure reduction may still have to be provided.
- Another disadvantage is that the opening angle of the injected fuel jet is determined by the seat geometry and cannot be changed during the operation of the fuel injector.
- the method according to the invention for metering fuel with a fuel injection valve with the characterizing features of the main claim has the advantage that the fuel flow can be determined depending on some settings of the control signal a compensation curve characterizing the design of the fuel injector results, so that any fuel flow can be set with the control signal using the compensation curve.
- the amount of fuel that is injected from the fuel injector can be determined.
- a predetermined fuel flow can thus be set by the control signal at each operating point of the internal combustion engine.
- a setpoint can thus be set directly without the need for special regulation.
- an engine-specific fluctuation can be easily compensated for.
- an opening angle of a fuel jet sprayed from the fuel injection valve is varied by varying the control signal. This makes it possible to specify the area in which the fuel is mixed with the combustion air.
- the opening angle of the fuel jet sprayed from the fuel injection valve is measured as a function of the control signal for generating a characteristic curve and that a predetermined opening angle of the fuel jet is set with the control signal using the characteristic curve.
- a setpoint of the opening angle can be set directly without any special regulation being necessary, and moreover an engine-specific fluctuation can be easily compensated for.
- the fuel supplied to the fuel injector is at least approximately constant over time Fuel inlet pressure applied. This simplifies the control of the fuel injector.
- the fuel is injected directly into a combustion chamber of an internal combustion engine and the control signal is influenced by at least one control variable of the internal combustion engine.
- the control variable z. B. be the torque or speed of the internal combustion engine, or the control variable may depend on the composition of an exhaust gas generated by the internal combustion engine. This enables cylinder matching and optimization of engine behavior to be achieved. A long-term drift of the fuel injector can also be compensated for. It is particularly advantageous if the control variable is determined individually for each individual cylinder of the internal combustion engine, as a result of which a different behavior of the individual cylinders can be detected quickly.
- Fig. 1 shows a schematic embodiment
- FIG. 2 shows section II in FIG. 1 in a first operating position
- Fig. 3 shows the detail II in Fig. 1 in a second
- Fig. 4 is a diagram for explaining the method according to the invention. Description of the embodiments
- fuel injector 1 shows an arrangement for explaining the method according to the invention for metering fuel with a fuel injector 1.
- the fuel injector 1 is designed here as an internal fuel injector 1, but the method is also suitable for an external fuel injector 1.
- fuel injector 1 is used for direct injection of fuel, in particular gasoline, into a combustion chamber 2 of a mixture-compressing, spark-ignited
- Internal combustion engine 3 as a so-called gasoline direct injection valve.
- the fuel injection valve 1 according to the invention is also suitable for other applications.
- the fuel injector 1 is connected to a control unit 5 via an electrical cable 4.
- the fuel injector 1 is connected to a fuel umpe 7 via a fuel line 6.
- valve housing 10 of the fuel injection valve 1 has a valve seat body 11 at one end; at the other end the valve housing 10 is closed with a valve cover 12.
- a valve seat surface 13 is formed, which cooperates with a truncated cone-shaped valve closing body 14 tapering in the spray direction, which is actuated by a valve needle 15 and is formed in one piece with the latter in the exemplary embodiment shown, to form a sealing seat.
- the fuel injection valve 1 is actuated by an actuator 16, which is designed to be piezoelectric or magnetostrictive.
- the actuator 16 has a central recess through which the valve needle 15 penetrates, so that the actuator 16 encloses the valve needle 15 at least in sections.
- the actuator 16 is located in an actuator space 17, which a sealing plate 18 is separated from a fuel chamber 19.
- the valve needle 15 is connected to a pressure plate 20.
- the actuator 16 is supported on the one hand on the pressure plate 20 and on the other hand on the sealing plate 18.
- the sealing plate 18 guides the valve needle 15.
- the valve closing body 14 is pressed via the valve needle 15 and the pressure plate 20 by a compression spring 21 into the valve seat surface 13 of the valve seat body 11, whereby the sealing seat is closed.
- the fuel injector 1 is actuated by a control signal generated by the control unit 5, which is fed to the actuator 16 via the electrical cable 4 and an electrical feed line 25.
- the actuator 16 When the actuator 16 is actuated, it expands against the force of the compression spring 21, as a result of which a valve lift of the valve needle 15 is generated and the valve closing body 14 lifts off the valve seat surface 13.
- the resulting gap between the valve closing body 14 and the valve seat surface 13 results in fuel escaping from the fuel chamber 19 into an injection channel 26, as a result of which fuel is injected into the combustion chamber 2 of the internal combustion engine 3.
- Fuel is fed into the fuel chamber 19 via the fuel line 6 and the fuel pump 7.
- the fuel pump 7 is used for variably adjusting the fuel inlet pressure prevailing in the fuel chamber 19.
- the fuel line 6 is connected to the valve housing 10 of the fuel injector 1 by a connecting element 27 via a thread 28.
- the fuel pump 7 is connected to a fuel tank, not shown, from which it pumps fuel into the fuel chamber 19.
- a valve needle stroke of the valve needle 15 is generated, so that a gap is created between the valve closing body 14 and the valve seat surface 13, its cross-sectional area depends on the size of the valve needle stroke.
- a fuel jet is sprayed out of the fuel injection valve 1 through the resulting gap.
- the sprayed-off fuel jet is characterized by a fuel flow which results from the amount of fuel derived over time. The amount of fuel injected during an actuation cycle of the fuel injection valve 1 therefore results from the fuel flow integrated over the injection cycle.
- the actuator 16 is actuated with a variable control signal, so that the fuel injection valve 1 only partially opens.
- the opening cross section generated thereby between the valve closing body 14 and the valve seat surface 13 of the valve seat body 11 can then be kept constant for a certain time, after which the sealing seat is closed again by the control signal. In this way, even the smallest amounts of fuel can be injected into the combustion chamber 2.
- These small amounts of fuel can also be generated at a constant level generated by the fuel pump 7 in the fuel chamber 19 Fuel inlet pressure to be metered.
- the control device 5 is connected to a drive shaft measuring device 30 and an exhaust gas measuring device 31, for which purpose connections 32, 33 are provided.
- the drive shaft measuring device 30 is connected to a drive shaft sensor 34, which measures the torque and / or the rotational speed of the internal combustion engine.
- the drive shaft sensor 34 can act on the drive shaft 38 or it can also act on another device suitable for determining the torque or the speed of the internal combustion engine.
- the exhaust gas measuring device 31 has an exhaust gas sensor 35, which is introduced into an exhaust gas line 36 of the internal combustion engine 3.
- the exhaust gas sensor 35 is connected to the exhaust gas measuring device 31 via a connecting piece 37.
- the exhaust gas sensor 35 can lie before the combination of the exhaust gases generated by the individual cylinders of the internal combustion engine 3 or after the combination of the combustion gases generated by the individual cylinders of the internal combustion engine 3.
- control variables generated by the drive shaft measuring device 30 and the exhaust gas measuring device 31 are passed to the control unit 5 via the connections 32, 33 and processed further in the context of an engine control.
- the Adjust cylinder Through a cylinder-specific control, the Adjust cylinder to each other; A long-term drift of the injection behavior of the fuel injection valve 1 can also be corrected.
- FIG. 2 and 3 show the section designated II in FIG. 1, the fuel injection valves 1 being controlled differently. Elements already described are provided with the same reference numerals.
- a fuel flow is generated at the sealing seat formed by the valve closing body 14 and the valve seat surface 13, as a result of which a frustoconical fuel jet 40 is sprayed out of the spray channel 26 of the fuel injection valve 1.
- the fuel jet 40 has an opening angle ⁇ which is dependent on the size of the fuel flow.
- control signal sets a larger valve needle stroke than in FIG. 2, as a result of which the fuel flow increases and a larger opening angle ⁇ of the conical fuel jet 40 is achieved.
- the opening angle of the fuel jet 40 sprayed off by the fuel injection valve 1 can therefore be varied by varying the control signal.
- FIG. 4 shows a series of measurements which represents the fuel flow Q and the opening angle ⁇ of the fuel jet 40 as a function of a valve stroke h of the fuel injector 1.
- the valve lift h results from the expansion of the actuator 16 as a function of the control signal of the control unit 5. Instead of the valve lift h, the physical quantity, z. B. the electrical voltage, the control signal.
- the valve stroke h is varied by varying the control signal, with a fixed valve stroke h resulting in a static fuel flow Q after a short time.
- a compensation curve is placed through the measuring points 45a-45e, which, for. B. can be given by a 2nd degree polynomial.
- the compensation curve can also by connecting two adjacent measuring points, for. B. 45b, 45c can be given by a straight line.
- the required valve lift h or the required size of the control signal can then be determined for a specific fuel flow Q with the aid of the compensation curve 46.
- a control signal of the size determined in this way is sent to the fuel injection valve 1, as a result of which the desired fuel flow Q is set at the fuel injection valve 1.
- This calibration and control algorithm can, for. B. with a microprocessor of the control unit 5.
- the opening angle ⁇ is determined in the same way as a function of the valve lift h or the size of the control signal.
- the measurement points 47a-47d result.
- Two adjacent measuring points z. B. 47b, 47c are with a straight line z. B. 48b, which results in the characteristic 48a - 48c.
- the required valve lift h or the required size of the control signal can be determined with the aid of the characteristic curve 48a-48c at a desired opening angle ⁇ , the desired opening angle ⁇ being obtained by actuating the fuel injector 1 with a corresponding control signal .
- the compensation curve and characteristic curve 46 and 48a-48c can also be determined in another way, in particular by interpolation or approximation.
- the fuel inlet pressure of the fuel can also be varied by the fuel pump 7.
- the result is a two-dimensional map in which the fuel flow Q and the opening angle ⁇ are dependent of the valve lift or the size of the control signal and the
- Fuel inlet pressure are shown. To a desired combination of fuel flow and opening angle
- the control unit 5 is connected to the fuel pump 7 by a connection (50, FIG. 1).
- the invention is suitable for any fuel injection valves 1 that allow variable control of the valve lift.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19936944 | 1999-08-05 | ||
DE19936944A DE19936944A1 (en) | 1999-08-05 | 1999-08-05 | Method for metering fuel using a fuel injector |
PCT/DE2000/002620 WO2001011228A1 (en) | 1999-08-05 | 2000-08-03 | Method for dosing a fuel injection valve |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1206638A1 true EP1206638A1 (en) | 2002-05-22 |
EP1206638B1 EP1206638B1 (en) | 2005-03-23 |
Family
ID=7917307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00963875A Expired - Lifetime EP1206638B1 (en) | 1999-08-05 | 2000-08-03 | Method for dosing a fuel injection valve |
Country Status (8)
Country | Link |
---|---|
US (1) | US6679222B1 (en) |
EP (1) | EP1206638B1 (en) |
JP (1) | JP4536978B2 (en) |
KR (1) | KR20020023417A (en) |
CN (1) | CN1165682C (en) |
BR (1) | BR0013019A (en) |
DE (2) | DE19936944A1 (en) |
WO (1) | WO2001011228A1 (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10208650A1 (en) | 2001-03-15 | 2002-09-19 | Bosch Gmbh Robert | Synchronization of at least one subscriber of bus system involves adapting division factor to synchronize local clock period to system clock period by adding or subtracting matching value |
DE10147814A1 (en) * | 2001-09-27 | 2003-05-08 | Bosch Gmbh Robert | Method, computer program and control and / or regulating device for operating an internal combustion engine, and internal combustion engine |
DE10149960C1 (en) * | 2001-10-10 | 2003-02-27 | Bosch Gmbh Robert | IC engine operating method uses set of functions for determining required control energy for each fuel injector piezoactuator |
DE10152416A1 (en) * | 2001-10-24 | 2003-06-18 | Bosch Gmbh Robert | Fuel injector |
DE10212508A1 (en) * | 2002-03-21 | 2003-10-02 | Bosch Gmbh Robert | Method and device for controlling the fuel metering in an internal combustion engine |
DE10317684B4 (en) * | 2003-04-17 | 2015-02-12 | Robert Bosch Gmbh | Method and control device for operating an internal combustion engine |
DE10346970B3 (en) * | 2003-10-09 | 2004-11-18 | Siemens Ag | Controlling internal combustion engine involves determining fuel quantity base value from load parameter, corrected with value dependent on fuel pressure in feed device and nozzle needle displacement |
US7604023B2 (en) * | 2003-10-14 | 2009-10-20 | Buckner Lynn A | Utility valve access and performance evaluation means |
EP1526267A3 (en) * | 2003-10-21 | 2010-07-28 | Continental Automotive GmbH | Method and device for compensating the drift of an injector for an internal combustion engine with direct injection |
DE102004027291B4 (en) * | 2004-06-04 | 2009-11-26 | Continental Automotive Gmbh | Method and device for controlling a valve |
DE102005004093A1 (en) * | 2004-12-09 | 2006-06-22 | BSH Bosch und Siemens Hausgeräte GmbH | dishwasher |
DE102005004442B4 (en) * | 2005-01-31 | 2006-11-16 | Siemens Ag | Method and device for controlling an internal combustion engine |
DE102006027823B4 (en) * | 2006-06-16 | 2008-10-09 | Continental Automotive Gmbh | Method and device for adjusting the valve characteristic of a fuel injection valve |
FR2917137B1 (en) * | 2007-06-06 | 2013-10-11 | Renault Sas | ADAPTER FOR INJECTOR TESTING. |
JP4858345B2 (en) * | 2007-07-25 | 2012-01-18 | 株式会社デンソー | Fuel injection control device and fuel injection system using the same |
JP4623066B2 (en) * | 2007-08-31 | 2011-02-02 | 株式会社デンソー | Injection control device for internal combustion engine |
DE102009004572B4 (en) * | 2009-01-14 | 2010-08-19 | Abb Technology Ag | Method and electronic device for compensating the drift behavior in a pneumatic actuator during operation |
JP5482532B2 (en) * | 2010-07-16 | 2014-05-07 | 株式会社デンソー | Fuel injection control device |
US8387900B2 (en) * | 2011-06-24 | 2013-03-05 | Weidlinger Associates, Inc. | Directly-actuated piezoelectric fuel injector with variable flow control |
US20130068200A1 (en) * | 2011-09-15 | 2013-03-21 | Paul Reynolds | Injector Valve with Miniscule Actuator Displacement |
US20130081376A1 (en) * | 2011-10-03 | 2013-04-04 | Paul Reynolds | Pulse Detonation Engine with Variable Control Piezoelectric Fuel Injector |
US9103294B2 (en) | 2011-12-02 | 2015-08-11 | Cummins Inc. | Fuel drift estimation and compensation for operation of an internal combustion engine |
EP2662555A1 (en) * | 2012-05-10 | 2013-11-13 | Continental Automotive GmbH | Method for monitoring an injection valve |
WO2014039800A1 (en) * | 2012-09-08 | 2014-03-13 | Purdue Research Foundation | Rapid estimation of piezoelectric fuel injection events |
US20150052905A1 (en) * | 2013-08-20 | 2015-02-26 | General Electric Company | Pulse Width Modulation for Control of Late Lean Liquid Injection Velocity |
DE102014007963A1 (en) * | 2014-06-04 | 2015-12-17 | Man Diesel & Turbo Se | Method for operating an internal combustion engine and engine control unit |
US11073105B2 (en) | 2018-10-02 | 2021-07-27 | Rohr, Inc. | Acoustic torque box |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4649886A (en) | 1982-11-10 | 1987-03-17 | Nippon Soken, Inc. | Fuel injection system for an internal combustion engine |
JPS61237861A (en) * | 1985-04-15 | 1986-10-23 | Nippon Soken Inc | Control device of fuel injection valve |
US4732129A (en) | 1985-04-15 | 1988-03-22 | Nippon Soken, Inc. | Control apparatus for electroexpansive actuator enabling variation of stroke |
JPS63143361A (en) * | 1986-12-04 | 1988-06-15 | Aisan Ind Co Ltd | Controlling method for injector valve |
DE4005455A1 (en) | 1989-02-28 | 1990-08-30 | Volkswagen Ag | Dosing valve for vehicle IC engine fuel injection - has piezoelectric actuator and spring membrane seal for closing force |
DE4325904C2 (en) * | 1993-08-02 | 1995-07-20 | Daimler Benz Ag | Fuel injection system provided for a diesel internal combustion engine with a high-pressure pump delivering the fuel into a common supply line (common rail) for all injection nozzles |
US5740777A (en) | 1995-05-16 | 1998-04-21 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | In-cylinder injection internal combustion engine |
DE19642653C5 (en) | 1996-10-16 | 2008-02-21 | Daimler Ag | Process for forming an ignitable fuel / air mixture |
JPH10159626A (en) * | 1996-11-29 | 1998-06-16 | Aisin Seiki Co Ltd | Engine fuel feeder |
JPH10213041A (en) | 1997-01-31 | 1998-08-11 | Yamaha Motor Co Ltd | Liquid injector for internal combustion engine |
JP2000027725A (en) | 1998-07-08 | 2000-01-25 | Isuzu Motors Ltd | Common rail type fuel injection device |
-
1999
- 1999-08-05 DE DE19936944A patent/DE19936944A1/en not_active Withdrawn
-
2000
- 2000-08-03 US US10/049,008 patent/US6679222B1/en not_active Expired - Lifetime
- 2000-08-03 WO PCT/DE2000/002620 patent/WO2001011228A1/en not_active Application Discontinuation
- 2000-08-03 BR BR0013019-2A patent/BR0013019A/en not_active Withdrawn
- 2000-08-03 KR KR1020027001562A patent/KR20020023417A/en not_active Application Discontinuation
- 2000-08-03 CN CNB008113335A patent/CN1165682C/en not_active Expired - Fee Related
- 2000-08-03 DE DE50009880T patent/DE50009880D1/en not_active Expired - Lifetime
- 2000-08-03 JP JP2001515452A patent/JP4536978B2/en not_active Expired - Fee Related
- 2000-08-03 EP EP00963875A patent/EP1206638B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0111228A1 * |
Also Published As
Publication number | Publication date |
---|---|
BR0013019A (en) | 2002-04-16 |
EP1206638B1 (en) | 2005-03-23 |
CN1369035A (en) | 2002-09-11 |
DE50009880D1 (en) | 2005-04-28 |
US6679222B1 (en) | 2004-01-20 |
JP4536978B2 (en) | 2010-09-01 |
DE19936944A1 (en) | 2001-02-08 |
WO2001011228A1 (en) | 2001-02-15 |
KR20020023417A (en) | 2002-03-28 |
JP2003506625A (en) | 2003-02-18 |
CN1165682C (en) | 2004-09-08 |
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