WO2006008201A1 - Kraftstoffinjektor mit zweistufigem übersetzer - Google Patents
Kraftstoffinjektor mit zweistufigem übersetzer Download PDFInfo
- Publication number
- WO2006008201A1 WO2006008201A1 PCT/EP2005/052208 EP2005052208W WO2006008201A1 WO 2006008201 A1 WO2006008201 A1 WO 2006008201A1 EP 2005052208 W EP2005052208 W EP 2005052208W WO 2006008201 A1 WO2006008201 A1 WO 2006008201A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- translator
- face
- nozzle needle
- fuel injector
- actuator
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 title abstract description 7
- 238000002347 injection Methods 0.000 claims abstract description 42
- 239000007924 injection Substances 0.000 claims abstract description 42
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 230000007423 decrease Effects 0.000 description 13
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 206010011469 Crying Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004904 shortening Methods 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection 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
- 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
-
- 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
- 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
- F02M2200/704—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with actuator and actuated element moving in different directions, e.g. in opposite directions
Definitions
- a control valve is actuated by an actuator.
- the actuator is for example a piezoelectric actuator or an electromagnetic actuator.
- the control valve opens or closes a connection from a pressurized control chamber into a low-pressure line.
- One side of the control chamber is bounded by an end face of the nozzle needle, which opens or closes the at least one injection nozzle.
- the pressure in the control room decreases.
- the pressure force acting on the nozzle needle decreases.
- the nozzle needle moves into the control space and thus releases the at least one injection opening.
- the control valve is closed again, whereby the pressure in the control chamber increases again.
- the nozzle needle moves in the direction of the injection opening and closes it.
- this structure of the fuel injector causes the piezoelectric actuator to be energized when the injection nozzles are closed, thereby experiencing a longitudinal expansion. Only to open the injectors, the voltage is taken from the piezoelectric actuator. The actuator is therefore constantly energized in the closed state.
- a further disadvantage of the fuel injectors known from the prior art is that, due to the high ratio of the actuator to the nozzle needle of 1: 4, the rigidity of the injector system is reduced, in particular in the lower part, so that injection molding formation is not possible.
- the inventively embodied fuel injector comprises an injector housing with a bore, in which a nozzle needle is received.
- the bore expands into a nozzle space which is supplied by a high pressure accumulator with high pressure fuel.
- the nozzle needle is enclosed by an annular gap. The fuel passes through this gap with the injection valve open to the injection opening.
- the Einspritzöfmung is closed and there is no fuel in the combustion chamber.
- high-pressure fuel passes from the annular gap to the injection nozzle and is injected into the combustion chamber.
- the nozzle needle expands to form an end face pointing in the direction of the injection opening.
- the end face of the nozzle needle and each one end face of a first translator and an end face of a second translator define one side of a Steuerraurns.
- Another limitation of the control chamber is formed by an end face of a lower housing part. Mit ⁇ means of an actuator, the end face of the first translator and the end face of the second translator are moved into the control room or moved out of this.
- the actuator acts on a first end face of a Steu ⁇ erkolbens.
- a second face of the spool acts on the first translator.
- the second translator Upon further movement of the actuator in the direction of the injection openings, the second translator abuts against a rib on the control piston and is thus likewise pushed into the control chamber. one moves. As a result, the pressure in the control room continues to increase, whereby the nozzle needle is opened further.
- the movement of the control piston is due to the fact that a spring element designed as a compression spring, which surrounds the rib of the control piston and is supported on one side against a contact surface arranged on the rib of the control piston and on the other side against the second translator, is compressed.
- the actuator is moved back in the opposite direction.
- the control piston moves away from the Einspritzöffhung, whereby the first and the second translator are moved out of the control room.
- the rib on the control piston enclosing the spring element is relieved.
- the movement of the second translator is stopped as soon as the pressure and spring forces acting on the second translator are compensated.
- the movement of the first translator is ended as soon as the actuator is no longer moved.
- a fixed stop for terminating the movement of the second translator has the disadvantage that density differences occurring due to temperature fluctuations can not be compensated.
- a density increase leads to a pressure drop and a decrease in density leads to an increase in pressure in the control chamber. This results in undesirable changes in the injection behavior due to the different forces required to open and close the nozzle needle.
- the injection opening is opened quickly and precisely with high rigidity and with a small ratio. As soon as the first translator and the second translator enter the control room, the translation increases. This results in a large opening travel being achieved with a small actuator stroke.
- the nozzle needle, the first translator and the second translator are rotationally symmetrical, wherein the first translator is the The end of the nozzle needle encloses and the first translator is enclosed by the second translator.
- a pot-shaped recess is formed in the widened end of the nozzle needle on the side facing away from the injection opening.
- the cup-shaped recess is accommodated by a spring element, which is preferably designed as a spiral spring, which is supported with one side against the bottom of the cup-shaped recess and with the other side against the first translator.
- the second translator of an annular element um ⁇ closed, which is placed with a biting edge in the lower housing part.
- the ringförmi ⁇ ge element forms with the inside of the lateral boundary of the control room.
- the second translator is enclosed by a spring element designed as a compression spring, which is supported with one side against one of the biting edge opposite end face of the annular element and the second side against a rib on the second translator.
- the spring element is compressed, whereby the spring force increases.
- the second translator is again moved out of the control chamber due to the spring force of the spring element.
- Figure 2 shows the time course of Aktorhübs and the needle stroke of an inventively designed fuel injector.
- FIG. 1 shows a section through a fuel injector designed according to the invention.
- a fuel injector 1 comprises an upper housing part 2 and a lower housing part 3.
- a bore 4 is executed, in which a nozzle needle 5 is guided.
- the nozzle needle 5 By means of the nozzle needle 5 at least one Einspritzöfmung 7 is released or closed.
- the nozzle needle 5 is placed in a valve seat 6.
- a connection is released from a nozzle chamber 8 via an annular gap 9 to the injection opening 7, via which the fuel flows.
- a high-pressure line 10 which is connected to a similar Druckstof ⁇ roch- pressure accumulator shown.
- the supply of the fuel from the high-pressure fuel storage to the high pressure line 10 is marked with the arrow 11.
- a stepped enlargement 12 is formed on the nozzle needle 5.
- the step-shaped enlargement 12 has, at its end facing the at least one injection opening 7, an end face 13 which delimits a side of a control chamber 18 with an end face 14 of a first translator 15 and an end face 16 of a second translator 17.
- the first translator 15 encloses the stepped enlargement 12 of the nozzle needle 5.
- the first translator 12 is enclosed by the second translator 17.
- the second translator 17 is surrounded by an annular element 19, which is employed with a biting edge 20 on an upper end face 21 * of the lower housing part 3.
- annular element 19 By exerting a compressive force on one of the biting edge 20 opposite end face 22 of the annular member 19, the annular member 19 is liquid-tightly connected to the upper end face 21 of the lower housing part 3.
- a pot-shaped recess 24 is formed on the side facing away from the at least one Einspritzöfmung 7 side.
- the step-shaped widening 12 of the nozzle needle 5 together with the cup-shaped recess 24 and the first translator 15 enclose a second control chamber 25.
- a first spring element 26 is accommodated, which faces the bottom 27 of the cup-shaped recess 24 and 14 at one side supported with the second side against the first translator 15.
- the first translator is 15 cup-shaped, so that the first spring element 26 is supported against the bottom 28 of the cup-shaped first translator 15.
- the first spring element 26 is preferably a spiral spring acting as a compression spring, but it is also possible to use any other spring spring variant known to the person skilled in the art.
- the second translator 17 is surrounded by a second spring element 29.
- the second spring element 29 is supported on one side against the end face 22 of the annular element 19 and on the second side against an end face 30 of a rib 31 which is formed on the end of the second translator 17 remote from the at least one injection opening 7.
- the second control chamber 25 is supplied with fuel under high pressure.
- fuel can flow out of the control chamber 25 via the bypass 32, 33, so that the pressure in the second control chamber 25 remains constant.
- an actuator 34 is arranged in the fuel injector 1.
- the actuator 34 is preferably a piezoelectric actuator.
- the actuator 34 acts on an upper end face 35 of a control piston 36.
- With a lower end face 37 of the control piston 36 acts on an upper end face 38 of the first translator 15.
- a tube spring 41 is attached to the rib 39 in a form-fitting manner.
- a rib 52 with a contact surface 53 adjoins the tubular spring 41 in the embodiment shown here, against which a third spring element 54 designed as a compression spring is supported with one side. With the other side, the third spring element 54 is supported against the second translator 17.
- the spring element 54 surrounds the control piston 36.
- the spring element 54 is preferably a helical spring, but any other compression spring variant known to those skilled in the art can also be used as the spring element 54.
- the actuator 34 To open the at least one Einspritzöfmung 7 of the actuator 34 is energized. As a result, the actuator 34 experiences a longitudinal extension in the direction of the at least one input. Spriteöffhung 7. Due to the linear expansion of the actuator 34, the control piston 36 and thus the first translator 15 is moved in the direction of Einspritzöfmung. The movement of the first translator 15 in the direction of the at least one injection opening 7 leads to the end face 14 of the first translator 15 being moved into the control space 18. This reduces the volume of the control chamber 18.
- the control chamber 18 is filled with high pressure fuel. Due to the reduction in the volume of the control chamber 18, the pressure in the control chamber 18 increases. Due to the increasing pressure in the control chamber 18, the pressure force acting on the end face 13 of the stepped extension 12 increases.
- the first spring element 26 When opening the nozzle needle 5, the first spring element 26 is compressed.
- the movement of the nozzle needle 5 in the direction of the control piston 36 is completed at the latest when the spring element 26 can not be further compressed.
- the ratio is calculated as long as only the first translator 15 is moved from the difference of the diameter di of the nozzle needle 5 in the bore 4 and the diameter d 2 of the nozzle needle 5 in the region of the stepped Er ⁇ extension 12 to the difference of the outer diameter d 3 of the first translator 15 and the diameter d 2 of the stepped extension 12.
- the transmission ratio d 2 - di: d 3 - d 2 is in the range of 1: 1 to 1: 1.5. Due to this crying translation, the nozzle needle 5 is quickly and precisely opened with high rigidity.
- the transmission ratio is calculated from the difference between the diameter d 2 of the stepped extension 12 and the diameter di of the nozzle needle 5 in the region of the bore 4 to the difference between the outer diameter ⁇ U of the second translator 17 and the diameter d 2 of the stepped extension 12.
- the ratio d 2 - di: d4 - d 2 is in the range of 1: 4 to 1: 7. Due to the high ratio already leads a small movement ⁇ tion of the first translator 15 and the second translator 17 in the control chamber 18 to a strong pressure increase and a large movement of the nozzle needle 5. For this reason, already a small Hüb of the actuator 34 is sufficient to open the nozzle needle 5 wide. Due to the increasing spring force in the first spring element 26 as a result of the opening of the nozzle needle 5, the opening speed decreases with increasing opening of the nozzle needle 5.
- the injection curve can be optimally adapted to the combustion in the combustion chamber 43 by setting the time at which the second translator 17 is moved.
- a further advantage of the structure of the fuel injector 1 according to the invention with the two translators 15, 17 is that, due to the movement of the translators 15, 17 into the control chamber 18 to open the at least one injection opening 7, the actuator 34 is supplied with voltage for opening and to close the voltage from the actuator 34 is taken.
- the voltage is taken from the actuator 34.
- the actuator 34 is shortened in the direction of the at least one injection opening 7 by contracting the piezocrystal stack and the control piston 36, supported by the tubular spring 41.
- the first translator 15 and the second translator 17 first move out of the control chamber 18, respectively. This leads to an increase in the volume in the control chamber 18 and thus to a pressure decrease.
- the pressure decrease in the control room 18 in turn causes the Compressive force acting on the end face 13 of the stepped extension 12 of the nozzle needle 5, decreases.
- the nozzle needle 5 moves in the direction of the at least one injection opening 7.
- the movement of the second translator 17 in the direction of the actuator 34 is supported by the second spring element 29.
- the second spring element 29 is compressed by the movement of the second translator 17 into the control chamber 18.
- the spring force acting on the end face 30 of the rib 31 on the second translator 17 and the end face 22 of the annular member 19 increases.
- This spring force of the second spring element 29 acts on closing the at least one Einspritzöffhung on the end face 30 of the rib 31 and thus supports the movement of the second translator 17 in the direction of the actuator 34.
- the spring element 29 is preferably designed as a helical spring compression spring. However, it is also possible to use any further compression spring arrangement known to the person skilled in the art as a spring element 29.
- the third spring element 54 is relieved again. The movement of the second translator 17 is stopped at the starting position by balancing the forces acting on the end faces 16, 40 compressive forces and the spring forces of the second spring element 29 and the third spring element 54.
- the first translator 15 also moves in the direction of the actuator 34, supported by the spring force of the first spring element 26.
- the end face 14 of the first translator 15 moves further out of the control space 18 out, which leads to an increase in the volume of the control space Vo ⁇ 18 and thus to a pressure decrease in the control chamber 18.
- the further pressure decrease in the control chamber 18 leads to a further movement of the nozzle needle 5 in the direction of the at least one Einspritzöffhung 7 until the nozzle needle 5 is placed in the valve seat and so the at least one Einspritzöffhung 7 is closed.
- FIG. 2 shows the time course of the actuator stroke and the time profile of the opening stroke of the nozzle needle.
- the time t is plotted on the abscissa and the stroke h is plotted on the ordinate.
- the actuator 34 is energized. As soon as a voltage is applied to the actuator 34, its piezocrystal stack begins to expand. With the beginning of the expansion of the actuator 34 to the time ti, the first Ü bersetzer 15 is moved into the control chamber 18. At the time ti beats the face 42 of the rib 39 on the upper end face 40 of the second translator 17 and begins to move it also in the direction of the control chamber 18. The increase in length of the actuator 34 is indicated by reference numeral 44. As soon as the actuator 34 has reached its maximum length and remains energized, it no longer changes its length.
- the time period of the maximum stroke of the actuator 34 is designated by reference numeral 45.
- the voltage at the actuator 34 is withdrawn. Hier ⁇ by shortens its piezocrystal stack back to the original length. This is shown in the diagram in FIG. 2 by the curve section 46.
- the nozzle needle 5 begins to lift out of the valve seat 6.
- the rapid opening movement of the nozzle needle 5 is represented by the curve section 47.
- the opening speed of the nozzle needle 5 decreases. This is shown by the flatter curve 48. The decrease in the opening speed results from the increasing force acting on the actuator 34. This causes the speed at which the piezo crystals expand to decrease.
- the ⁇ ffhungsvorgang the nozzle needle 5 is stopped by the compression of the first Federele ⁇ element 26 or by striking a stop, not shown here. For this reason, as shown by reference numeral 49, the stroke of the nozzle needle 5 initially does not change further.
- the nozzle needle 5 begins to move again in the direction of the injection opening 7.
- the nozzle needle 5 moves slowly as shown by reference numeral 50.
- the closing speed of the nozzle needle continues to increase as soon as only the first translator 15 is moved out of the control chamber 18. This is shown in the curve section with reference numeral 51.
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
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502005009096T DE502005009096D1 (de) | 2004-07-21 | 2005-05-13 | Kraftstoffinjektor mit zweistufigem übersetzer |
EP05749967A EP1771650B1 (de) | 2004-07-21 | 2005-05-13 | Kraftstoffinjektor mit zweistufigem übersetzer |
US11/632,971 US7484673B2 (en) | 2004-07-21 | 2005-05-13 | Fuel injector with two-stage booster |
JP2006524373A JP2007502384A (ja) | 2004-07-21 | 2005-05-13 | 2段式の変換器を備えた燃料インジェクタ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004035313A DE102004035313A1 (de) | 2004-07-21 | 2004-07-21 | Kraftstoffinjektor mit zweistufigem Übersetzer |
DE102004035313.1 | 2004-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006008201A1 true WO2006008201A1 (de) | 2006-01-26 |
Family
ID=34969383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/052208 WO2006008201A1 (de) | 2004-07-21 | 2005-05-13 | Kraftstoffinjektor mit zweistufigem übersetzer |
Country Status (6)
Country | Link |
---|---|
US (1) | US7484673B2 (de) |
EP (1) | EP1771650B1 (de) |
JP (1) | JP2007502384A (de) |
CN (1) | CN101023261A (de) |
DE (2) | DE102004035313A1 (de) |
WO (1) | WO2006008201A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007098975A1 (de) * | 2006-02-24 | 2007-09-07 | Robert Bosch Gmbh | Kraftstoffeinspritzvorrichtung für eine brennkraftmaschine |
US20100021646A1 (en) * | 2007-02-09 | 2010-01-28 | Dürr Systems GmbH | Deflecting air ring and corresponding coating process |
EP1831540B1 (de) * | 2004-12-23 | 2010-10-13 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkt angesteuertem einspritzventilglied |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005015732B4 (de) * | 2005-04-06 | 2017-02-09 | Robert Bosch Gmbh | Kraftstoffinjektor mit hydraulischem Mitnehmer |
DE102005016794B4 (de) * | 2005-04-12 | 2017-02-02 | Robert Bosch Gmbh | Kraftstoffinjektor mit Hubumkehr |
DE102005025953A1 (de) * | 2005-06-06 | 2006-12-07 | Siemens Ag | Einspritzventil und Ausgleichselement für ein Einspritzventil |
DE102005041996B4 (de) * | 2005-09-05 | 2017-07-27 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkt betätigbarem Einspritzventilglied und Verfahren zur Ansteuerung des Einspritzventilgliedes |
DE102005041994B4 (de) * | 2005-09-05 | 2017-12-14 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkt betätigbarem Einspritzventilglied und zweistufiger Übersetzung |
DE102006036782B4 (de) * | 2006-08-07 | 2017-12-14 | Robert Bosch Gmbh | Injektor |
DE102006036780A1 (de) | 2006-08-07 | 2008-02-21 | Robert Bosch Gmbh | Krafstoffinjektor mit direkter Nadelsteuerung und Servoventil-Unterstützung |
JP4270292B2 (ja) | 2007-03-05 | 2009-05-27 | 株式会社デンソー | 燃料噴射弁 |
JP4270291B2 (ja) | 2007-03-05 | 2009-05-27 | 株式会社デンソー | インジェクタ |
JP4270293B2 (ja) * | 2007-03-05 | 2009-05-27 | 株式会社デンソー | 燃料噴射弁 |
JP4386928B2 (ja) | 2007-04-04 | 2009-12-16 | 株式会社デンソー | インジェクタ |
DE102008040680A1 (de) * | 2008-07-24 | 2010-01-28 | Robert Bosch Gmbh | Kraftstoff-Injektor |
DE102009024596A1 (de) | 2009-06-10 | 2011-04-07 | Continental Automotive Gmbh | Einspritzventil mit Übertragungseinheit |
DE102009024595A1 (de) * | 2009-06-10 | 2011-03-24 | Continental Automotive Gmbh | Einspritzventil mit Übertragungseinheit |
DE102010040938A1 (de) | 2010-09-17 | 2012-03-22 | Robert Bosch Gmbh | Kraftstoffinjektor |
US9284930B2 (en) * | 2011-06-03 | 2016-03-15 | Michael R. Harwood | High pressure piezoelectric fuel injector |
DE102012204297A1 (de) * | 2012-03-19 | 2013-09-19 | Robert Bosch Gmbh | Einspritzventil |
DE102012212266B4 (de) * | 2012-07-13 | 2015-01-22 | Continental Automotive Gmbh | Fluidinjektor |
DE102012212264B4 (de) | 2012-07-13 | 2014-02-13 | Continental Automotive Gmbh | Verfahren zum Herstellen eines Festkörperaktuators |
AU2013334273B2 (en) | 2012-10-25 | 2016-03-10 | Briggs & Stratton, Llc | Fuel injection system |
US10094349B2 (en) * | 2014-05-08 | 2018-10-09 | Hitachi, Ltd. | Fluid valve assembly |
JP6443109B2 (ja) * | 2015-02-17 | 2018-12-26 | 株式会社Soken | 燃料噴射弁 |
JP6462546B2 (ja) * | 2015-10-02 | 2019-01-30 | 株式会社Soken | 燃料噴射弁 |
CN109312735A (zh) | 2016-05-12 | 2019-02-05 | 布里格斯斯特拉顿公司 | 燃料输送喷射器 |
US10947940B2 (en) | 2017-03-28 | 2021-03-16 | Briggs & Stratton, Llc | Fuel delivery system |
US11668270B2 (en) | 2018-10-12 | 2023-06-06 | Briggs & Stratton, Llc | Electronic fuel injection module |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4306073C1 (de) * | 1993-02-26 | 1994-06-01 | Siemens Ag | Zumeßvorrichtung für Fluide |
DE19519191A1 (de) * | 1995-05-24 | 1996-12-19 | Siemens Ag | Einspritzventil |
WO2001029403A1 (de) * | 1999-10-21 | 2001-04-26 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5033442A (en) * | 1989-01-19 | 1991-07-23 | Cummins Engine Company, Inc. | Fuel injector with multiple variable timing |
-
2004
- 2004-07-21 DE DE102004035313A patent/DE102004035313A1/de not_active Withdrawn
-
2005
- 2005-05-13 US US11/632,971 patent/US7484673B2/en not_active Expired - Fee Related
- 2005-05-13 JP JP2006524373A patent/JP2007502384A/ja active Pending
- 2005-05-13 CN CNA2005800246053A patent/CN101023261A/zh active Pending
- 2005-05-13 WO PCT/EP2005/052208 patent/WO2006008201A1/de active Application Filing
- 2005-05-13 DE DE502005009096T patent/DE502005009096D1/de active Active
- 2005-05-13 EP EP05749967A patent/EP1771650B1/de not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4306073C1 (de) * | 1993-02-26 | 1994-06-01 | Siemens Ag | Zumeßvorrichtung für Fluide |
DE19519191A1 (de) * | 1995-05-24 | 1996-12-19 | Siemens Ag | Einspritzventil |
WO2001029403A1 (de) * | 1999-10-21 | 2001-04-26 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1831540B1 (de) * | 2004-12-23 | 2010-10-13 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkt angesteuertem einspritzventilglied |
WO2007098975A1 (de) * | 2006-02-24 | 2007-09-07 | Robert Bosch Gmbh | Kraftstoffeinspritzvorrichtung für eine brennkraftmaschine |
US8146839B2 (en) | 2006-02-24 | 2012-04-03 | Robert Bosch Gmbh | Fuel injection device for an internal combustion engine |
US20100021646A1 (en) * | 2007-02-09 | 2010-01-28 | Dürr Systems GmbH | Deflecting air ring and corresponding coating process |
US8481124B2 (en) * | 2007-02-09 | 2013-07-09 | Durr Systems Gmbh | Deflecting air ring and corresponding coating process |
US8642131B2 (en) | 2007-02-09 | 2014-02-04 | Durr Systems Gmbh | Deflecting air ring and corresponding coating process |
Also Published As
Publication number | Publication date |
---|---|
DE502005009096D1 (de) | 2010-04-08 |
US7484673B2 (en) | 2009-02-03 |
JP2007502384A (ja) | 2007-02-08 |
US20080093482A1 (en) | 2008-04-24 |
EP1771650B1 (de) | 2010-02-24 |
DE102004035313A1 (de) | 2006-02-16 |
EP1771650A1 (de) | 2007-04-11 |
CN101023261A (zh) | 2007-08-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1771650B1 (de) | Kraftstoffinjektor mit zweistufigem übersetzer | |
EP1636484B1 (de) | Einspritzdüse für brennkraftmaschinen | |
EP2499350B1 (de) | Verfahren zum herstellen eines kraftstoffeinspritzventils | |
EP2536942B1 (de) | Hochdruck-kraftstoff-einspritzventil für einen verbrennungsmotor | |
EP1759114A1 (de) | Kraftstoffinjektor mit variabler aktorhubübersetzung | |
DE19946827C1 (de) | Ventil zum Steuern von Flüssigkeiten | |
DE102005009147A1 (de) | Kraftstoffinjektor für Verbrennungskraftmaschinen | |
EP1705365B1 (de) | Kraftstoffinjektor mit direkter Steuerung des Einspritzventilglieds und variabler Übersetzung | |
EP1520099B1 (de) | Druckübersetzer kraftstoffinjektor mit schnellem druckabbau bei einspritzende | |
DE10218904A1 (de) | Kraftstoffeinspritzeinrichtung | |
EP1342005B1 (de) | Kraftstoffeinspritzsystem für brennkraftmaschinen | |
EP1183460B1 (de) | Einspritzeinrichtung mit einem aktor zur nadelhubsteuerung | |
EP1853813A1 (de) | Einspritzdüse | |
EP1387937B1 (de) | Kraftstoffeinspritzventil für brennkraftmaschinen mit einem druckschwingungen reduzierenden dämpfungsraum | |
EP1872008B1 (de) | Zweistufig öffnender kraftstoffinjektor | |
WO2005040595A1 (de) | Kraftstoffinjektor mit mehrteiligem, direktgesteuertem einspritzventilglied | |
WO2001029409A1 (de) | Einspritzeinrichtung und verfahren zum einspritzen von fluid | |
EP1392967A1 (de) | Kraftstoffeinspritzeinrichtung | |
CH689267A5 (de) | Einspritzventil fuer eine Kraftstoffeinspritzanlage einer Brennkraftmaschine, insbesondere eines Dieselmotors. | |
WO2001014729A1 (de) | Ventileinrichtung | |
DE10218635A1 (de) | Kraftstoffeinspritzeinrichtung | |
DE10019767A1 (de) | Ventil zum Steuern von Flüssigkeiten | |
WO2007033861A1 (de) | Kraftstoffeinspritzvorrichtung | |
WO2001053689A1 (de) | Ventil zum steuern von flüssigkeiten | |
DE10338768A1 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2005749967 Country of ref document: EP |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006524373 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11632971 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580024605.3 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2005749967 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 11632971 Country of ref document: US |