EP0961025A1 - Brennstoffeinspritzdüse - Google Patents

Brennstoffeinspritzdüse Download PDF

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Publication number
EP0961025A1
EP0961025A1 EP98810500A EP98810500A EP0961025A1 EP 0961025 A1 EP0961025 A1 EP 0961025A1 EP 98810500 A EP98810500 A EP 98810500A EP 98810500 A EP98810500 A EP 98810500A EP 0961025 A1 EP0961025 A1 EP 0961025A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
nozzle head
fuel injection
valve seat
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98810500A
Other languages
German (de)
English (en)
French (fr)
Inventor
David Imhasly
Hans-Jürg Hartmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wartsila NSD Schweiz AG
Original Assignee
Wartsila NSD Schweiz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wartsila NSD Schweiz AG filed Critical Wartsila NSD Schweiz AG
Priority to EP98810500A priority Critical patent/EP0961025A1/de
Priority to JP11075253A priority patent/JP2000064930A/ja
Priority to PL99333388A priority patent/PL333388A1/xx
Priority to KR1019990019352A priority patent/KR19990088618A/ko
Publication of EP0961025A1 publication Critical patent/EP0961025A1/de
Withdrawn legal-status Critical Current

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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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/043—Injectors with heating, cooling, or thermally-insulating means with cooling means other than air cooling
    • 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
    • F02M61/166—Selection of particular materials
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F2007/0097—Casings, e.g. crankcases or frames for large diesel engines

Definitions

  • the invention relates to a fuel injector for a diesel engine according to the preamble of the independent claim. Especially The invention relates to a fuel injector for a two-stroke large diesel engine such as that used to power ships is used.
  • the cylinder head is typically so thick designed that the nozzle heads, which are in the immediate vicinity of the Combustion chamber, can hardly be cooled and therefore in the Operation are exposed to very high temperatures.
  • the nozzle head must be sufficiently supported to withstand the pressure loads resulting from the high injection pressures result in being able to absorb.
  • the nozzle heads with sufficient robustness to design. Therefore, the nozzle head must be mechanically very stable be connected to the nozzle body so that the pressure loads on the Can transfer body. For this it is known, for example, the Press the nozzle head into a corresponding hole in the nozzle body.
  • the fuel injector that solves this problem is characterized by the features of independent claim 1.
  • a fuel injector for one Diesel engine in particular a large two-stroke diesel engine, proposed the one nozzle body and one connected to the nozzle body Includes nozzle head, which is provided with a longitudinal bore, and the has at least one nozzle hole emanating from the longitudinal bore, through which the fuel can escape into a combustion chamber.
  • nozzle head in the Inside the nozzle body is a nozzle needle, which extends into the Longitudinal bore of the nozzle head extends and the end with an in Nozzle head provided valve seat cooperates so that it is on Valve seat opens or closes the passage to the nozzle hole.
  • the Nozzle head is detachably connected to the nozzle body.
  • the nozzle head can be removed, for example with the help of a screw connection, with the nozzle body connect results in a significant simplification and a reduction of the Effort and the cost of replacing the nozzle head.
  • Complicated Steps like the violent knocking out of a pressed one Nozzle head with any necessary post-processing or that Pressing in a new nozzle head is no longer necessary.
  • the nozzle head is preferably connected to the nozzle body in such a way that it can be removed from the nozzle body in the closing direction of the nozzle needle is. This makes replacing the nozzle head even easier because it is not necessary other components that are inside the nozzle body disassemble.
  • the nozzle head to be replaced becomes easier Way, e.g. B. by loosening a screw, from the nozzle body removed and does not need for example through the interior of the To be removed through the nozzle body.
  • this is with the valve seat cooperating end of the nozzle needle essentially spherical curved, in particular designed as a hemisphere. From this measure results in a significant reduction in the effort involved in processing the Nozzle head without making concessions to the reliable function the fuel injector must be made. This is particularly so important if the nozzle head needs to be replaced. Through the spherical configuration of the end of the nozzle needle is namely a significantly lower accuracy in the manufacture of the nozzle head necessary.
  • the axis of the longitudinal bore in the Nozzle head after its assembly not exactly with the longitudinal axis of the Nozzle needle this has no negative effects on the function of the Fuel injector because of the offset of the two axes by the spherically curved end of the nozzle needle is compensated so that nevertheless a reliable seal on the valve seat is guaranteed. So is perfect even after replacing the nozzle head Interaction with the other components of the injector.
  • this is with the Valve seat cooperating end of the nozzle needle conical and the valve seat as a conical seat, which so at the conical end of the nozzle needle is adapted that in the closed position a sealing surface is available. This also makes it very good and special realize permanent sealing function.
  • valve seat in the To be placed near the nozzle hole is the volume that is located between the second valve seat and the nozzle hole, especially small, so that the injection process by closing the passage at the valve seat can be terminated practically immediately, without that more fuel in poorly atomized form in the combustion chamber can reach, which leads to additional pollution of the exhaust gas as well to deposits of unburned fuel on old parts of the Combustion chamber and the exhaust gas-carrying components would lead.
  • the fuel injector according to the invention is suitable for Diesel engines, especially for large two-stroke diesel engines such as these can be used for example in shipbuilding.
  • Fig. 1 shows in a longitudinal section for understanding the invention essential parts of a first embodiment of the Fuel injection nozzle according to the invention, the total with the Reference number 1 is provided.
  • the fuel injector 1 is for installation in the cylinder head of a two-stroke large diesel engine, for example, a ship engine. In the assembled state protrudes the lower end of the fuel injector 1 as shown in the Combustion chamber of a cylinder of the diesel engine.
  • the fuel injection nozzle 1 comprises a nozzle body 2 and one with the nozzle body 2 connected nozzle head 3, which has a longitudinal bore 32 is provided.
  • the nozzle head 3 In the area of its lower end, the nozzle head 3 at least one nozzle hole 31, typically e.g. B. five nozzle holes 31, which each emanate from the longitudinal bore 32 and through which the Fuel can leak into the combustion chamber.
  • the Nozzle needle 7 extends into the longitudinal bore 32 of the nozzle head 3 lower end 73 acts in this way with one provided in the nozzle head 3 Valve seat 6 together that there is passage to the valve seat 6 Nozzle holes 31 opens or closes. That with the valve seat 6 cooperating end 73 of the nozzle needle 7 is part of a ball, especially designed as a hemisphere.
  • the valve seat 6 in the nozzle head 3 is preferably in the immediate vicinity, that is arranged just above, the uppermost nozzle hole 31.
  • the measure is the blind hole volume 20, which is located downstream of the Valve seat 6 is particularly small, so that the injection process by closing the passage on the valve seat 6 practically immediately can be ended without further fuel in the Combustion chamber can drip.
  • the nozzle needle 7 has an upper, thicker area 71, which by a appropriately dimensioned axial bore is guided in the nozzle body 2, and a lower, thinner area 72 which extends into the longitudinal bore 32 extends in the nozzle head 3.
  • the diameter of the thinner area is 72 smaller than the diameter of the longitudinal bore 32, so that the nozzle needle 7 is guided in the longitudinal bore 32 of the nozzle head 3.
  • the nozzle needle 7 is in a known manner, for. B. via a pestle 11 and a plunger plate 12 which is spring-loaded by a compression spring 13, biased against the valve seat 6.
  • a pressure chamber 8 is provided, which surrounds the nozzle needle 7.
  • the Pressure chamber 8 opens a feed line 9 for the fuel.
  • the connection of the nozzle head 3 with the nozzle body 2 takes place in this Embodiment by means of a holding sleeve 4 and a screw that is designed as a union nut 5.
  • the holding sleeve 4 tapers on her lower end to the longitudinal axis A of the fuel injector 1 so that it has a shoulder 41 here.
  • the shoulder 41 is supported on the Nozzle head 3.
  • the upper end of the holding sleeve 4 is from the Union nut 5 added, which in turn with the nozzle body 2nd is screwed.
  • the fuel injector 1 is supported with the Shoulder 41 on or in the cylinder cover, so that on the Nozzle head 3 acting pressure loads on the shoulder 41 of the Cylinder cover or the nozzle body 2 are added.
  • This is a mechanically robust connection between the nozzle head 3 and the Nozzle body 2 and a sufficiently stable support of the nozzle head 3 guaranteed. Because of the mechanically robust connection, it is not more necessary to press the nozzle head 3 into the nozzle body 2 what considerably easier assembly and disassembly of the nozzle head 3 enables. It only requires loosening the union nut 5 in order to Remove the nozzle head 3 from the nozzle body 2.
  • the nozzle head 3 provides consequently represents an easily replaceable unit of the fuel injector 1.
  • the end 73 of the nozzle needle 7 is cooperates with the valve seat 6, essentially spherically curved designed.
  • the valve seat 6 is preferably a conical seat, that is to say in Shape of a cone or a truncated cone.
  • Fig. 1 shows the fuel injector 1 in the closed state
  • the fuel injector 1 hydraulically operated as follows.
  • the fuel is e.g. B. by means of a not Injection pump shown through the feed line 9 into the pressure chamber 8 promoted and acts on the nozzle needle 7.
  • Preload opening pressure
  • the nozzle needle 7 is raised and opens thus the passage to the nozzle holes 31 on the valve seat 6, so that the Injection begins, which means that the fuel passes through the Nozzle holes 31 in the combustion chamber of the cylinder.
  • the fuel pressure in the pressure chamber 8 decreases.
  • the nozzle needle 7 is pressed into the valve seat 6. This will make the Passage to the nozzle holes 31 on the valve seat 6 closed and the Injection process ended. Since the blind hole volume 20 downstream of the Valve seat 6 is negligibly small, can after the end of Injection process practically no fuel in the combustion chamber drops.
  • Fig. 2 shows a second embodiment of the inventive Fuel injector 1, being identical or of function equivalent parts are provided with the same reference numerals as for the first embodiment. In contrast to the first 1 are in the second The embodiment according to FIG. 2 means for cooling the nozzle head 3 intended.
  • An additional sleeve 42 is located between the holding sleeve 4a and the nozzle head 3 arranged, which surrounds the nozzle head 3 such that between the Inner wall of the additional sleeve 42 and the outer wall of the nozzle head 3 annular cooling space 43 is formed.
  • the additional sleeve 42 is supported in the Shoulders 41a of the holding sleeve 4a.
  • the nozzle head 3 is supported in the Additional sleeve 42 from.
  • a cooling line 44 is also provided, which opens into the cooling space 43 and through which a coolant, e.g. B water or a cooling oil in which Cooling space 43 can be introduced.
  • the cooling line 44 is preferably a bore educated.
  • the second cooling line not visible in FIG. 2, the is also preferably configured as a bore and into the cooling space 43 opens, the coolant can be removed from the cooling space 43. This measure allows the nozzle head 3, which is in the operating state exposed to the highest thermal loads, effectively cooling, with what its lifespan can be increased.
  • the nozzle head 3 in very easily remove from the nozzle body 2 by the Union nut 5 is loosened and then the nozzle head 3 together with the additional sleeve 42, the holding sleeve 4a and the union nut 5 in Closing direction of the nozzle needle 7, i.e. downwards, from the nozzle body 2 is removed.
  • Fig. 3 shows a sectional view of the lower region of a third Embodiment of the fuel injector 1 according to the invention the nozzle head 3.
  • valve seat 6a cooperating end 73a of the nozzle needle 7 is substantially conical configured and the valve seat 6a is designed as a conical seat, which is connected to the conical end 73a of the nozzle needle 7 is adapted that in the closed position - which is shown in FIG. 3 - a sealing surface 67 between the conical end 73a of the nozzle needle 7 and the valve seat 6a is available.
  • This surface contact between the nozzle needle 7 and the Valve seat 6a forms a particularly reliable and durable seal on the valve seat 6a, preferably the valve seat 6a is lapped to a best possible surface contact between the nozzle needle and the valve seat To achieve 6a.
  • the third embodiment also means for Cooling of the nozzle head 3 can have, analogous to how it is related was explained with the second embodiment.
  • FIGS. 4-6 show variants for the configuration of the nozzle head 3 shown, which are suitable for all three embodiments.
  • the nozzle head 3 has at least one Part of its outer surface on a heat protection layer 33, which consists of a Material with a small coefficient of thermal conductivity, preferably one Ceramic like silicon oxide is made. This measure also leaves the nozzle head protect itself against the high thermal loads.
  • a heat protection layer 33 which consists of a Material with a small coefficient of thermal conductivity, preferably one Ceramic like silicon oxide is made. This measure also leaves the nozzle head protect itself against the high thermal loads.
  • a heat protection layer 33 which consists of a Material with a small coefficient of thermal conductivity, preferably one Ceramic like silicon oxide is made. This measure also leaves the nozzle head protect itself against the high thermal loads.
  • a heat protection layer 33 which consists of a Material with a small coefficient of thermal conductivity, preferably one Ceramic like silicon oxide is made. This measure also leaves the nozzle head protect itself against the high thermal loads.
  • the heat protection layer 33 surrounds the heat protection layer 33 Nozzle head 3 along its entire circumference. In the axial direction seen, the heat protection layer 33
  • the heat protection layer 33 then extends preferably only over a part, for example half, of the circumference of the nozzle head 3, this part on the nozzle holes 31st facing away from the nozzle head 3.
  • the longitudinal bore 32 of the nozzle head 3 at least over part of its longitudinal extent of one Thermal protection layer 34 bounded by a material with a small Thermal conductivity coefficient, preferably a ceramic is made.
  • This Thermal protection layer 34 can be configured, for example, as a sleeve be inserted into the longitudinal bore 32 of the nozzle head 3. This measure, in particular, allows thermal stress of the thinner area 72 of the nozzle needle 7 significantly reduce what to leads to an increased lifespan.
  • Cooling holes 35 are provided through which a coolant in the operating state such as water or a cooling oil is passed to cool the nozzle head 3 and thus increasing its lifespan.
  • the nozzle head 3 can have two Have heat protection layers, namely both a heat protection layer 33 - as in Fig. 4- on its outer surface, as well as a heat protection layer 34 on its inner surface delimiting the longitudinal bore 32 - as in FIG. 5 shown. It is also possible in addition to the or Heat protection layer (s) cooling holes 35 in the wall of the nozzle head 3 to be provided as described in connection with FIG. 6.
  • the nozzle head 3 consists of a heat-resistant material that withstands the high thermal loads that come from withstand the immediate proximity to the combustion chamber can. Suitable materials are, for example, nickel-based alloys or cobalt hard alloys
  • the entire nozzle head out of one ceramic, such as producing silicon oxide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP98810500A 1998-05-29 1998-05-29 Brennstoffeinspritzdüse Withdrawn EP0961025A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP98810500A EP0961025A1 (de) 1998-05-29 1998-05-29 Brennstoffeinspritzdüse
JP11075253A JP2000064930A (ja) 1998-05-29 1999-03-19 燃料噴射ノズル
PL99333388A PL333388A1 (en) 1998-05-29 1999-05-26 Fuel injection nozzle
KR1019990019352A KR19990088618A (ko) 1998-05-29 1999-05-28 연료분사노즐

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98810500A EP0961025A1 (de) 1998-05-29 1998-05-29 Brennstoffeinspritzdüse

Publications (1)

Publication Number Publication Date
EP0961025A1 true EP0961025A1 (de) 1999-12-01

Family

ID=8236117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810500A Withdrawn EP0961025A1 (de) 1998-05-29 1998-05-29 Brennstoffeinspritzdüse

Country Status (4)

Country Link
EP (1) EP0961025A1 (ko)
JP (1) JP2000064930A (ko)
KR (1) KR19990088618A (ko)
PL (1) PL333388A1 (ko)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004085828A2 (de) * 2003-03-27 2004-10-07 Siemens Aktiengesellschaft Direkt-einspritzventil in einem zylinderkopf
WO2004106725A1 (de) * 2003-06-03 2004-12-09 Man B & W Diesel Ag Kraftstoffeinspritzdüse
WO2005008059A1 (de) * 2003-07-17 2005-01-27 Ganser-Hydromag Ag Brennstoffeinspritzventil für brennkraftmaschinen
WO2006021014A1 (de) * 2004-08-24 2006-03-02 Robert Bosch Gmbh Einspritzdüse für brennkraftmaschinen
EP1682768A1 (en) * 2003-09-26 2006-07-26 Westport Research Inc. A fuel injection system and method of operation for a gaseous fuelled engine with liquid pilot fuel ignition
GB2435303A (en) * 2006-02-15 2007-08-22 Delphi Tech Inc Clamping arrangement for an i.c. engine fuel injector assembly
GB2416571B (en) * 2003-04-25 2007-09-12 Cummins Inc Fuel injector having a cooled lower nozzle body
EP2397682A1 (en) * 2010-06-18 2011-12-21 Caterpillar Motoren GmbH & Co. KG Injection Nozzle System and Ceramic Nozzle Hood
WO2011157375A1 (en) * 2010-06-18 2011-12-22 Caterpillar Motoren Gmbh & Co. Kg Injection nozzle system and ceramic nozzle hood
EP2487361A1 (en) 2011-02-14 2012-08-15 Caterpillar Motoren GmbH & Co. KG Nozzle needle for a fuel injector and fuel injector
DE102013009418A1 (de) * 2013-06-05 2014-12-24 Man Diesel & Turbo Se Kraftstoffeinspritzdüse
DE102013012496A1 (de) * 2013-07-26 2015-01-29 L'orange Gmbh Kraffstoffinjektor
CN104343608A (zh) * 2013-07-26 2015-02-11 曼柴油机和涡轮机欧洲股份公司 燃料喷射嘴
DE102015215943A1 (de) * 2015-08-20 2017-02-23 Robert Bosch Gmbh Kraftstoffinjektor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPQ671500A0 (en) * 2000-04-05 2000-05-04 Orbital Engine Company (Australia) Proprietary Limited Fuel injector nozzles
DE102009032305A1 (de) * 2009-07-09 2011-01-13 Man Diesel & Turbo Se Kraftstoffversorgungsanlage einer Brennkraftmaschine
CN109736990B (zh) * 2019-04-03 2019-07-16 常州江苏大学工程技术研究院 一种龙卷风式喷嘴

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH285899A (de) * 1950-11-13 1952-09-30 S A Durex Einspritzventil mit Kegelsitz für Brennkraftmaschinen.
FR1082680A (fr) * 1952-04-12 1954-12-31 Bosch Gmbh Robert Injecteur de combustible
GB755316A (en) * 1953-11-12 1956-08-22 Burmeister & Wains Mot Mask Fuel injection valves for internal combustion engines
JPS58143161A (ja) * 1982-02-17 1983-08-25 Isuzu Motors Ltd 燃料噴射弁
JPS62298658A (ja) * 1986-06-19 1987-12-25 Diesel Kiki Co Ltd 燃料噴射ノズル
JPH04103871A (ja) * 1990-08-22 1992-04-06 Isuzu Motors Ltd 燃料噴射ノズル及びその製造方法
WO1992013189A1 (en) * 1991-01-19 1992-08-06 Kabushiki Kaisha Komatsu Seisakusho Fuel injection valve for diesel engine
US5271563A (en) * 1992-12-18 1993-12-21 Chrysler Corporation Fuel injector with a narrow annular space fuel chamber

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH285899A (de) * 1950-11-13 1952-09-30 S A Durex Einspritzventil mit Kegelsitz für Brennkraftmaschinen.
FR1082680A (fr) * 1952-04-12 1954-12-31 Bosch Gmbh Robert Injecteur de combustible
GB755316A (en) * 1953-11-12 1956-08-22 Burmeister & Wains Mot Mask Fuel injection valves for internal combustion engines
JPS58143161A (ja) * 1982-02-17 1983-08-25 Isuzu Motors Ltd 燃料噴射弁
JPS62298658A (ja) * 1986-06-19 1987-12-25 Diesel Kiki Co Ltd 燃料噴射ノズル
JPH04103871A (ja) * 1990-08-22 1992-04-06 Isuzu Motors Ltd 燃料噴射ノズル及びその製造方法
WO1992013189A1 (en) * 1991-01-19 1992-08-06 Kabushiki Kaisha Komatsu Seisakusho Fuel injection valve for diesel engine
US5271563A (en) * 1992-12-18 1993-12-21 Chrysler Corporation Fuel injector with a narrow annular space fuel chamber

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 261 (M - 257) 19 November 1983 (1983-11-19) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 190 (M - 704) 3 June 1988 (1988-06-03) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 343 (M - 1285) 24 July 1992 (1992-07-24) *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004085828A3 (de) * 2003-03-27 2005-02-17 Siemens Ag Direkt-einspritzventil in einem zylinderkopf
WO2004085828A2 (de) * 2003-03-27 2004-10-07 Siemens Aktiengesellschaft Direkt-einspritzventil in einem zylinderkopf
US7418947B2 (en) 2003-03-27 2008-09-02 Siemens Aktiengesellschaft Direct injection valve in a cylinder head
GB2416571B (en) * 2003-04-25 2007-09-12 Cummins Inc Fuel injector having a cooled lower nozzle body
WO2004106725A1 (de) * 2003-06-03 2004-12-09 Man B & W Diesel Ag Kraftstoffeinspritzdüse
US7963461B2 (en) 2003-06-03 2011-06-21 Man B&W Diesel Ag Fuel injection nozzle
WO2005008059A1 (de) * 2003-07-17 2005-01-27 Ganser-Hydromag Ag Brennstoffeinspritzventil für brennkraftmaschinen
EP1682768A4 (en) * 2003-09-26 2009-01-21 Westport Power Inc FUEL INJECTION SYSTEM AND METHOD FOR OPERATING A GAS ENGINE WITH LIQUID PILOT FUEL IGNITION
EP1682768A1 (en) * 2003-09-26 2006-07-26 Westport Research Inc. A fuel injection system and method of operation for a gaseous fuelled engine with liquid pilot fuel ignition
US7383794B2 (en) 2004-08-24 2008-06-10 Robert Bosch Gmbh Injection nozzle for internal combustion machines
WO2006021014A1 (de) * 2004-08-24 2006-03-02 Robert Bosch Gmbh Einspritzdüse für brennkraftmaschinen
GB2435303A (en) * 2006-02-15 2007-08-22 Delphi Tech Inc Clamping arrangement for an i.c. engine fuel injector assembly
EP2397682A1 (en) * 2010-06-18 2011-12-21 Caterpillar Motoren GmbH & Co. KG Injection Nozzle System and Ceramic Nozzle Hood
WO2011157375A1 (en) * 2010-06-18 2011-12-22 Caterpillar Motoren Gmbh & Co. Kg Injection nozzle system and ceramic nozzle hood
EP2487361A1 (en) 2011-02-14 2012-08-15 Caterpillar Motoren GmbH & Co. KG Nozzle needle for a fuel injector and fuel injector
WO2012110209A1 (en) 2011-02-14 2012-08-23 Caterpillar Motoren Gmbh & Co. Kg Nozzle needle for a fuel injector, method to manufacture the nozzle needle and fuel injector
DE102013009418A1 (de) * 2013-06-05 2014-12-24 Man Diesel & Turbo Se Kraftstoffeinspritzdüse
DE102013012496A1 (de) * 2013-07-26 2015-01-29 L'orange Gmbh Kraffstoffinjektor
CN104343608A (zh) * 2013-07-26 2015-02-11 曼柴油机和涡轮机欧洲股份公司 燃料喷射嘴
DE102015215943A1 (de) * 2015-08-20 2017-02-23 Robert Bosch Gmbh Kraftstoffinjektor

Also Published As

Publication number Publication date
PL333388A1 (en) 1999-12-06
KR19990088618A (ko) 1999-12-27
JP2000064930A (ja) 2000-03-03

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