EP1519036A1 - Brennstoffeinspritzventil - Google Patents
Brennstoffeinspritzventil Download PDFInfo
- Publication number
- EP1519036A1 EP1519036A1 EP04104634A EP04104634A EP1519036A1 EP 1519036 A1 EP1519036 A1 EP 1519036A1 EP 04104634 A EP04104634 A EP 04104634A EP 04104634 A EP04104634 A EP 04104634A EP 1519036 A1 EP1519036 A1 EP 1519036A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injection
- flexible portion
- injection valve
- valve
- length
- 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 51
- 238000002347 injection Methods 0.000 title claims description 34
- 239000007924 injection Substances 0.000 title claims description 34
- 238000002485 combustion reaction Methods 0.000 claims abstract description 6
- 230000036316 preload Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims 1
- 230000004323 axial length Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
Images
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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/167—Means for compensating clearance or thermal expansion
-
- 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
- F02M47/04—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure using fluid, other than fuel, for injection-valve actuation
- F02M47/046—Fluid pressure acting on injection-valve in the period of injection to open it
-
- 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
Definitions
- the invention is based on a fuel injection valve according to the preamble of the main claim.
- a Fuel injection valve with a piezoelectric actuator known which in operative connection with a valve needle stands.
- the valve needle has at its discharge end a valve closing body, which with a Valve seat surface cooperates to a sealing seat.
- Two in the essential corrugated, axially flexible and radial rigid flexible sections serve to seal within the fuel injection valve, in particular a mixing to prevent fuel with the hydraulic medium which for the operation of an integrated Hubüber GmbHs- and Compensating device serves, and for sealing Fuel against the actuator.
- the flexible sections be from the rest position, which is the unloaded length corresponds, in only one direction, either only stretched or only upset and are without bias in the Fuel injector arranged.
- a disadvantage of the above-mentioned document known fuel injection valve is in particular that the durability and reliability of the flexible Sections is insufficient if no pretension is present, because the flexible sections by the extension or Compression in only one direction increased maximum Must withstand stress loads, which increases in the Area of the outer surface of the flexible sections occur. This can lead to cracks and leaking, for example, In addition, the valve dynamics is unfavorable affected.
- the fuel injection valve according to the invention with the characterizing features of the main claim has In contrast, the advantage that the maximum in operation occurring stresses within the flexible section are significantly reduced and thus the reliability of the Fuel injector and the durability increased are. In addition, the maximum on the actuation strand reduced acting forces, bringing the valve dynamics is improved.
- Fuel injection valve is the Vorspannbone or Preload selected so that at an example in Resting position with a compression built-in flexible section this undergoes an extension in operation, so that the is passed through unloaded length.
- Vorspannner or Preload selected so that at an example in Resting position with a compression built-in flexible section this undergoes an extension in operation, so that the is passed through unloaded length.
- One with an in Resting position with a stretch built-in flexible section should be analogous to a compression experienced.
- the Stress loads can be further extended to reduce.
- the amount equals that of the flexible one Section is compressed, about the amount by which the flexible section is stretched. The stress loads will be further minimized.
- the flexible section corrugated tube or formed bellows-shaped and made of steel.
- the Flexibility and radial rigidity is thereby improved, the flexible section cost can be produced.
- 1 is a fuel injection valve 1 according to FIG the prior art in its essential components for better understanding of the invention briefly explained.
- FIG. 1 One shown in Fig. 1 in an axial sectional view generic fuel injection valve 1 according to the state The technique is used in particular for direct injection of Fuel into a combustion chamber of a mixture-compacting, spark ignition internal combustion engine.
- An actuator 2, preferably made of disk-shaped piezoelectric or magnetostrictive elements 3 is constructed in a bipartite hollow cylindrical actuator housing 4 arranged.
- the actuator 2 rests on the inflow end, inside a first upper, inflow-side Aktorgeophuseteils 4a with a first end face 5 and lies with a second End face 6 on an actuator head 7 at.
- a biasing spring 8 is at a first end to the actuator head 7 and is from a second actuator housing part 4b, at which the second end 10 of the biasing spring 8 is supported, sleeve-shaped surround.
- the two Aktorgekorusemaschine 4a and 4b are z. B. welded together.
- the second actuator housing part 4b is firmly connected to a valve housing 13, for. B. welded.
- the actuator head 7 settles in an actuator piston 11, which is surrounded by the biasing spring 8, away.
- a housing 15 of the Lifting device 14 consists of a stationary section 42, the between a first bellows-shaped flexible Section 22 and a second bellows shaped second flexible portion 24 is arranged.
- the stationary Section 42 is preferably via a weld 18 on Valve housing 13 fixed.
- the first flexible portion 22 surrounds a first one Lifting piston 21, is spray side with the stationary Section 42 and at the other end with the first Lifting piston 21 welded.
- the second flexible section 24 surrounds a second piston 23 and is provided with a flange 19 a valve needle 20 welded.
- the second flexible Section 24 is also with the stationary section 42 welded.
- the first piston 21 is made in two parts and consists from an intermediate piece 25, which on the actuator piston 11th hinged and with the first corrugated gasket 22 in Compound stands, and a tubular piston 26 which in the likewise tubular fixed portion 42 out is.
- the second piston 23 passes through a recess 27 in discharge side end of the fixed portion 42 and guided in the piston 26.
- the second piston 23 is with the widened to the flange 19 end of the valve needle 20th connected.
- the reciprocating piston 21 and 23 are move in opposite directions and are by a closing spring 28th pushed apart within the piston 26, whereby the Fuel injection valve 1 remains closed.
- the first flexible section 22 encloses a first Compensation space 29.
- the second flexible section 24 encloses a second equalization space 30 Compensation spaces 29 and 30 are via a bore 31a in Intermediate piece 25 and a bore 31b in the second piston 23 and via a central recess 32 with each other connected.
- the hydraulic medium can thus be free in the Balance lifting device 14.
- the flexible sections 22 and 24 are in the axial direction flexible, but much stiffer in the radial direction.
- the axial length changes of the flexible portions 22 and 24 have no influence on their design Pressure conditions inside and outside the flexible Sections 22 and 24.
- the first piston 21, the second piston 23 and the stationary section 42 of the housing 15 enclose a annular transfer volume 39, which with the Hydraulic medium is felt. It serves the momentum transfer from the actuator 2 to the valve needle 20, the stroke ratio of a small Aktorhubs on a larger Ventilnadelhub and the Compensation of temperature-induced expansion processes of the actuator 2 and the lifting device 14.
- a leakage gap 40 of defined size, between the housing 15 and the Piston 26 is formed, allows the outflow of Hydraulic medium from the transfer volume 39 in the Compensation spaces 29 and 30 at slow, temperature-related Movements of the reciprocating piston 21 and 23.
- valve closing body 33rd formed with a valve seat surface 34 to a Tight fit together.
- a valve seat body 35 the is made in one piece with the valve housing 13 is a Spray opening 36 is formed.
- the fuel is over a laterally formed in the valve housing 13 Fuel supply 37 supplied and over a gap 38 between the valve needle 20 and the valve housing 13 for Tight fit.
- Fig. 2 shows a fragmentary schematic representation a first embodiment of an inventive Fuel Injector 1.
- the one shown here Fuel injection valve 1 has a tubular Nozzle body 44 which is connected to the valve housing 13 is.
- the valve needle 20 engages in the nozzle body 44.
- the valve closing body 33rd formed with the valve seat surface 34 to a Tight fit together.
- the valve seat body 35 the is executed here in one piece with the nozzle body 44 is at least one spray opening 36 is formed.
- the Fuel is on the side in the nozzle body 44th trained fuel supply 37 and fed via a Interspace 38 between the valve needle 20 and the Nozzle body 44 led to the sealing seat.
- an annular connecting body 46 arranged and for example by a welded joint joined with the nozzle body 44.
- the closing spring 28 is between the connecting body 46 and a first flange 48, which in the region of the discharge end of the Valve needle 20 is fixed, clamped, with the Closing spring 28 at one of the connecting body 46th trained shoulder 47 is supported.
- the closing spring 28 presses in this embodiment in the rest position the Valve-closing body 33 against the valve seat surface 34 and thus seals the sealing seat of the outward opening Fuel injector 1 from.
- Abspritz matter of the first flange 48 is an in Diameter smaller second flange 49 on the valve needle 20 fixed.
- Within the spiral closing spring 28 is between the second flange 49 and the connecting body 46 the second flexible portion 24 is arranged, this discharge side on the inside of the connecting body 46th and Abspritzfern with the second flange 49 hermetically sealed connected is.
- a sleeve-shaped guide body 45 arranged to guide the valve needle 20.
- the Guide body 45 serves at the same time for damping Pressure fluctuations of the fuel, so that they are not or only attenuated in the substantially of the second flexible section 24 impact enclosed space can.
- the actuator 2 If the actuator 2 is energized, it presses the valve needle 20 against the bias of the closing spring 28 in Abspritzetti, whereupon the valve closing body 33 of the Valve seat 34 lifts and opens the sealing seat.
- the valve closing body 33 of the Valve seat 34 lifts and opens the sealing seat.
- the second flange 49 moves with the valve needle 20 and shortens the axial extent of the second flexible Section 24, since that on the connecting body 46th attached end of the second flexible portion 24 not moved with the valve needle 20 in Abspritzetti.
- the example of steel existing second flexible Section 24 has an unloaded length that occurs would, if the second flexible portion 24 only at one End attached and the other end would be unloaded. in the the embodiment shown is the unloaded length of second flexible portion 24 smaller than the axial Length, which is at unaffected actuator 2, ie at unactuated fuel injection valve 1, adjusts. Of the second flexible section 24 is therefore with a Preload caused by an extension of the unloaded Length of the second flexible portion 24 by one Preload length is generated in the non-actuated Fuel injector 1 installed.
- the amount of the second flexible section 24 applied biasing force is much smaller than that applied by the closing spring 28 biasing force, wherein the directions of force in this embodiment each other are directed against.
- the preload length is chosen in that upon actuation of the fuel injection valve 1, for example, in Vollhub réelle or Operahub réelle, the unloaded length of the second flexible portion 24th reached and fallen below, so that's the second flexible Section 24, compared to the unloaded length, at compressed compressed open seat.
- Fig. 3 shows a fragmentary schematic representation a second embodiment of an inventive Fuel injection valve 1, similar to the first Embodiment of Fig. 2.
- the ejection end of the Nozzle body 44, the valve housing and the actuator housing. 4 are not shown.
- the connecting body 46th sleeve-shaped and radially surrounds the second bellows-shaped flexible section 24.
- the second flexible Section 24 is with its discharge end over the compared to Fig. 2 Abspritzpurer, approximately at height the discharge-side end of the connecting body 46, arranged second flange 49 on the valve needle 20th fixed, the guide body 45 is missing and the leadership by the second flange 49 sliding in the nozzle body 44 is taken over.
- the Abspritzferne end of the second flexible Section 24 is over a sleeve 50 in the area of Abspritzfernen end of the connecting body 46 to this fixed axially immovable, for example, cohesively through a weld.
- the example of steel existing second flexible Section 24 has an unloaded length that occurs would, if the second flexible portion 24 only at one End attached and the other end would be unloaded. in the the embodiment shown is the unloaded length of second flexible portion 24 greater than the axial length, in the case of an energized actuator 2, that is to say in the case of unconfirmed actuator 2 Fuel injection valve 1, sets.
- the second flexible portion 24 is therefore with a Preload caused by a compression of the unloaded Length of the second flexible portion 24 by one Preload length is generated in the non-actuated Fuel injector 1 installed.
- the amount of through the second flexible portion 24 applied Preload force is much smaller than that through the Closing spring 28 applied biasing force, the Force directions in this embodiment the same Direction sense.
- the preload length is selected so that upon actuation of the Fuel injection valve 1, for example at Full lift or partial lift, the unloaded length reaches the second flexible portion 24 and is exceeded, so that the second flexible section 24, compared to unloaded length, with open Seating is stretched.
- the leader length is chosen so that the amount of length to the second flexible section 24 is compressed, the amount is equal to the second flexible portion 24 upon actuation of the Fuel injection valve 1 is stretched.
- the invention is not limited to those shown Embodiments limited and z. B. also for internal opening fuel injectors are used.
- the features of the embodiments are in any Way combined with each other.
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
- Fig. 1
- eine schematische axiale Schnittdarstellung durch ein Brennstoffeinspritzventil gemäß dem Stand der Technik,
- Fig. 2
- eine ausschnittsweise schematische Darstellung eines ersten Ausführungsbeispiels eines erfindungsgemäßen Brennstoffeinspritzventils und
- Fig. 3
- eine ausschnittsweise schematische Darstellung eines zweiten Ausführungsbeispiels eines erfindungsgemäßen Brennstoffeinspritzventils.
Claims (8)
- Brennstoffeinspritzventil (1), insbesondere zum direkten Einspritzen von Brennstoff in einen Brennraum einer Brennkraftmaschine, mit einem piezoelektrischen, elektrostriktiven oder magnetostriktiven Aktor (2), und einer mit dem Aktor (2) in Wirkverbindung stehenden Ventilnadel (20), welche einen Ventilschließkörper (33) aufweist, der mit einer Ventilsitzfläche (34) zu einem Dichtsitz zusammenwirkt, wobei zur Abdichtung innerhalb des Brennstoffeinspritzventils (1) zumindest ein flexibler Abschnitt (22, 24) angeordnet ist,
dadurch gekennzeichnet, daß der flexible Abschnitt (22, 24) mit einer Vorspannung, die durch eine Stauchung oder Streckung der unbelasteten Länge des flexiblen Abschnitts (22, 24) um eine Vorspannlänge erzeugt ist, beaufschlagt ist. - Brennstoffeinspritzventil nach Anspruch 1,
dadurch gekennzeichnet, daß die Vorspannlänge so gewählt ist,
daß in den im Betrieb auftretenden Zuständen, der flexible Abschnitt (22, 24) bei einer durch die Vorspannlänge erzeugten Stauchung im Vergleich zur unbelasteten Länge gestreckt wird oder
daß der flexible Abschnitt (22, 24) bei einer durch die Vorspannlänge erzeugten Streckung im Vergleich zur unbelasteten Länge gestaucht wird. - Brennstoffeinspritzventil nach Anspruch 2,
dadurch gekennzeichnet, daß der Betrag der Länge um die der flexible Abschnitt (22, 24) gestaucht wird in etwa dem Betrag gleicht, um die der flexible Abschnitt (22, 24) gestreckt wird. - Brennstoffeinspritzventil nach einem der vorangegangenen Ansprüchen,
dadurch gekennzeichnet, daß der flexible Abschnitt (22, 24) wellrohr- bzw. wellbalgförmig ist. - Brennstoffeinspritzventil nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, daß der flexible Abschnitt (22, 24) wenigstens teilweise aus Metall, insbesondere aus Stahl, besteht. - Brennstoffeinspritzventil nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, daß der flexible Abschnitt (22, 24) mit einem Ende axial bewegungsfest an der Ventilnadel (20) fixiert ist. - Brennstoffeinspritzventil nach Anspruch 6,
dadurch gekennzeichnet, daß der flexible Abschnitt (22, 24) über einen Flansch (49) an der Ventilnadel (20) fixiert ist. - Brennstoffeinspritzventil nach einem der Ansprüche 6 oder 7,
dadurch gekennzeichnet, daß das jeweils andere Ende des flexiblen Abschnitts (22, 24) an einem Verbindungskörper (46), welcher gegenüber der Ventilnadel (20) axial beweglich ist, fixiert ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10344880 | 2003-09-26 | ||
| DE2003144880 DE10344880A1 (de) | 2003-09-26 | 2003-09-26 | Brennstoffeinspritzventil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1519036A1 true EP1519036A1 (de) | 2005-03-30 |
| EP1519036B1 EP1519036B1 (de) | 2007-05-30 |
Family
ID=34177980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04104634A Expired - Lifetime EP1519036B1 (de) | 2003-09-26 | 2004-09-23 | Brennstoffeinspritzventil |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1519036B1 (de) |
| DE (2) | DE10344880A1 (de) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010112275A1 (de) * | 2009-03-31 | 2010-10-07 | Siemens Aktiengesellschaft | Hydraulischer hubübertrager |
| CN101649796B (zh) * | 2008-08-16 | 2013-08-07 | 柳州福尔曼汽车电子有限公司 | 磁致伸缩元件驱动的无背压电控柴油喷油器 |
| JP2013539838A (ja) * | 2010-10-14 | 2013-10-28 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 燃料噴射装置 |
| CN113738540A (zh) * | 2021-09-04 | 2021-12-03 | 重庆红江机械有限责任公司 | 一种气体机用预燃室燃气喷嘴 |
| EP4459122A1 (de) * | 2023-05-04 | 2024-11-06 | MAN Energy Solutions SE | Kraftstoffinjektor einer brennkraftmaschine und brennkraftmaschine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005025952B4 (de) * | 2005-06-06 | 2009-01-29 | Continental Automotive Gmbh | Verfahren zum Herstellen eines Ventils |
| CN101649797B (zh) * | 2008-08-16 | 2013-05-29 | 柳州福尔曼汽车电子有限公司 | 一种磁致伸缩元件驱动的无背压电控柴油喷油器 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10030232A1 (de) * | 2000-06-20 | 2002-01-17 | Siemens Ag | Vorrichtung zum Übertragen einer Bewegung mit Spielausgleich |
| DE10035168A1 (de) * | 2000-07-19 | 2002-02-07 | Siemens Ag | Stellantrieb, Ventil sowie Verfahren zum Herstellen eines Stellantriebs |
| US6435430B1 (en) * | 1999-03-20 | 2002-08-20 | Robert Bosch Gmbh | Fuel injection valve |
| WO2003006820A1 (de) * | 2001-07-09 | 2003-01-23 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| WO2003089781A1 (de) * | 2002-04-22 | 2003-10-30 | Siemens Aktiengesellschaft | Dosiervorrichtung für fluide, insbesondere kraftfahrzeug-einspritzventil |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19950760A1 (de) * | 1999-10-21 | 2001-04-26 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| DE10159749A1 (de) * | 2001-12-05 | 2003-06-12 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
-
2003
- 2003-09-26 DE DE2003144880 patent/DE10344880A1/de not_active Withdrawn
-
2004
- 2004-09-23 EP EP04104634A patent/EP1519036B1/de not_active Expired - Lifetime
- 2004-09-23 DE DE200450003928 patent/DE502004003928D1/de not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6435430B1 (en) * | 1999-03-20 | 2002-08-20 | Robert Bosch Gmbh | Fuel injection valve |
| DE10030232A1 (de) * | 2000-06-20 | 2002-01-17 | Siemens Ag | Vorrichtung zum Übertragen einer Bewegung mit Spielausgleich |
| DE10035168A1 (de) * | 2000-07-19 | 2002-02-07 | Siemens Ag | Stellantrieb, Ventil sowie Verfahren zum Herstellen eines Stellantriebs |
| WO2003006820A1 (de) * | 2001-07-09 | 2003-01-23 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| WO2003089781A1 (de) * | 2002-04-22 | 2003-10-30 | Siemens Aktiengesellschaft | Dosiervorrichtung für fluide, insbesondere kraftfahrzeug-einspritzventil |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649796B (zh) * | 2008-08-16 | 2013-08-07 | 柳州福尔曼汽车电子有限公司 | 磁致伸缩元件驱动的无背压电控柴油喷油器 |
| WO2010112275A1 (de) * | 2009-03-31 | 2010-10-07 | Siemens Aktiengesellschaft | Hydraulischer hubübertrager |
| US8905334B2 (en) | 2009-03-31 | 2014-12-09 | Siemens Aktiengesellschaft | Hydraulic stroke transmitter |
| JP2013539838A (ja) * | 2010-10-14 | 2013-10-28 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 燃料噴射装置 |
| CN113738540A (zh) * | 2021-09-04 | 2021-12-03 | 重庆红江机械有限责任公司 | 一种气体机用预燃室燃气喷嘴 |
| EP4459122A1 (de) * | 2023-05-04 | 2024-11-06 | MAN Energy Solutions SE | Kraftstoffinjektor einer brennkraftmaschine und brennkraftmaschine |
| US12404827B2 (en) | 2023-05-04 | 2025-09-02 | Everllence Se | Fuel injector of an internal combustion engine and combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004003928D1 (de) | 2007-07-12 |
| DE10344880A1 (de) | 2005-04-14 |
| EP1519036B1 (de) | 2007-05-30 |
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