CN113202673A - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

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Publication number
CN113202673A
CN113202673A CN202110126346.6A CN202110126346A CN113202673A CN 113202673 A CN113202673 A CN 113202673A CN 202110126346 A CN202110126346 A CN 202110126346A CN 113202673 A CN113202673 A CN 113202673A
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CN
China
Prior art keywords
sealing surface
nozzle body
nozzle
face
supply line
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
Application number
CN202110126346.6A
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Chinese (zh)
Other versions
CN113202673B (en
Inventor
T·克劳阿
R·迈尔
H·沙尔
S·克恩
C·史托兹
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.)
MAN Energy Solutions SE
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MAN Energy Solutions SE
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Filing date
Publication date
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Publication of CN113202673A publication Critical patent/CN113202673A/en
Application granted granted Critical
Publication of CN113202673B publication Critical patent/CN113202673B/en
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    • 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
    • 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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
    • 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/077—Injectors having cooling or heating means

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

A fuel injection valve has: a nozzle body accommodating the nozzle needle, wherein at least one fuel supply line is introduced into the nozzle body; a nozzle holder, wherein at least one fuel supply line is introduced into the nozzle holder, which at least one fuel supply line communicates with a respective fuel supply line of the nozzle body; and a clamping nut that axially clamps the nozzle body and the nozzle holder together. A coolant supply line and a coolant discharge line communicating with each other are introduced into the nozzle body and the nozzle holder. On the end face of the nozzle body and/or on the end face of the nozzle holder adjoining the end face of the nozzle body, an outer sealing surface and at least one inner sealing surface separated from the outer sealing surface by at least one recess are formed, wherein the respective inner sealing surface seals the respective communicating fuel supply line in the region of the mutually adjoining end faces and the respective outer sealing surface seals the respective communicating coolant line in the region of the mutually adjoining end faces.

Description

Fuel injection valve
Technical Field
The present invention relates to a fuel injection valve.
Background
A fuel injection valve for an internal combustion engine is known from DE 19827628 a 1. Thus, DE 19827628 a1 discloses a fuel injection valve having a nozzle body, a nozzle holder and a clamping nut, wherein the nozzle body and the nozzle holder are clamped together axially via the clamping nut. The nozzle body accommodates a nozzle needle, wherein at least one fuel supply line leading to a pressure chamber for fuel surrounding the nozzle body of the nozzle needle is introduced into the nozzle body. At least one fuel supply line is likewise attached in the nozzle holder, which is clamped axially together with the nozzle body via a clamping nut, which fuel supply line communicates with the fuel supply line of the nozzle body, i.e. directly without the interposition of an adapter between the nozzle holder and the nozzle body. The end faces of the nozzle body and of the nozzle holder of the fuel injection valve abutting against one another are pressed against one another via the clamping nut as a result of the axial clamping, in order thus to provide a seal at the abutting end faces.
According to DE 19827268 a1, the recess is introduced into the end face of the nozzle body, as a result of which a radially outer sealing surface is formed on the end face of the nozzle body. The radially outer sealing surface seals the communicating fuel supply line in the region of the nozzle body and the end face of the nozzle holder. Fuel migrating through the sealing surface may leak to the outside.
A further fuel injection valve for an internal combustion engine is known from DE 19914720B 4. The fuel injection valve includes a union nut that accommodates a plurality of injector modules, i.e., an injector head, a servo body, a split body, an adapter body, and a nozzle body, disposed one on another. A recess is introduced on the end face of the injector head forming an outer sealing surface and an inner sealing surface. The inner sealing surface seals the fuel delivery line against the recess on the end face.
In the case of cooled injection valves, the sealing of the fuel line and the coolant line has hitherto posed difficulties.
Disclosure of Invention
Starting from this, the invention is based on the object of creating a new fuel injection valve with reduced fuel and coolant leakage.
This object is solved by a fuel injection valve according to claim 1. According to the invention, a coolant supply line and a coolant discharge line which communicate with one another are introduced into the nozzle body, into the nozzle holder and into the optional adapter, via which coolant can be supplied to and discharged from the nozzle body for cooling the nozzle body. On the end face of the nozzle body and/or on the end face of the nozzle holder or adapter adjoining the end face of the nozzle body, an outer sealing surface and at least one inner sealing surface separated from the outer sealing surface by at least one recess are formed, wherein the respective inner sealing surface seals the respective communicating fuel supply line in the region of the mutually adjoining end faces, and wherein the respective outer sealing surface seals the respective communicating coolant line in the region of the mutually adjoining end faces.
In the fuel injection valve according to the present invention, separate sealing surfaces are formed separately from each other for sealing of the fuel line and for sealing of the coolant line. The respective inner sealing surface is separated from the respective outer sealing surface by at least one recess, wherein the respective inner sealing surface seals the fuel supply line in the region of the mutually adjoining respective end faces and the respective outer sealing surface seals the coolant line of the mutually adjoining assembly of fuel injection valves. Fuel leakage is trapped in the area of the recess and cannot reach the outside via the respective outer sealing surface. The coolant leakage may also migrate into the respective recess or to the outside. This allows a particularly advantageous sealing of the fuel injection valve while reducing fuel leakage and coolant leakage.
Preferably, the respective recess communicates with a leakage drain channel in the region of the nozzle holder, via which leakage collected in the region of the recess can be drained. In this way, leakage which collects in the region of the respective recess can be discharged particularly advantageously from the fuel injection valve.
According to a first version, the respective outer sealing surface is separated from the respective inner sealing surface by a common recess for fuel leakage and coolant leakage. According to a second version, the respective outer sealing surface is separated from the respective inner sealing surface by a separate recess for fuel leakage and coolant leakage. The first type of providing a common recess for fuel leakage and coolant leakage is relatively simple in design. The second version with separate recesses for fuel leakage and coolant leakage is more complex in design but allows separate draining of fuel leakage and coolant leakage.
Further preferred developments of the invention result from the dependent claims and the following description. Exemplary embodiments of the present invention are illustrated in more detail by the accompanying drawings without being limited thereto.
Drawings
The figures show:
FIG. 1 shows an axial cross-section through a fuel injection valve;
fig. 2 shows detail II of fig. 1; and
fig. 3 shows a cross section III-III of fig. 1.
Detailed Description
The present invention relates to a fuel injection valve. Fig. 1 shows an axial section through a fuel injection valve 10 for an internal combustion engine. The fuel injection valve 10 of the exemplary embodiment shown in fig. 1 includes a nozzle body 11, a nozzle holder 12, and a clamp nut 13.
The nozzle body 11 accommodates a nozzle needle 14. The nozzle needle 14 is axially movably guided in a recess of the nozzle body 11. In the nozzle body 11, at least one fuel supply line 15 is introduced, via which at least one fuel supply line 15 fuel can be supplied to a pressure chamber 16 of the nozzle body 11 partially surrounding the nozzle needle 14.
The nozzle body 11 is clamped axially together with the nozzle holder 12 via the clamping nut 13, wherein at least one fuel supply line 17 is likewise introduced into the nozzle holder 12, which at least one fuel supply line 17 communicates with a corresponding fuel supply line 15 of the nozzle body 11.
The nozzle holder 12 houses a spring 18, which spring 18 supports itself at a first end on a spring disc 19 and at an opposite second end on a spring disc 20. On the spring plate 20, a push rod 21 is formed, which acts on the nozzle needle 14 and abuts against the nozzle needle 14.
The spring force provided by the spring element 18 is transmitted to the nozzle needle 14 via the push rod 21, and has a tendency to close the nozzle body 11 via the nozzle needle 14. Against this spring force provided by the spring member 18, the nozzle needle 14 may be axially moved to open the nozzle body 11 when a force depending on the pressure in the pressure chamber 16 is greater than the spring force of the spring member 18.
In the exemplary embodiment shown, the nozzle body 11 and the nozzle holder 12 are directly axially clamped together via the clamping nut 13, the end face 11a of the nozzle body 11 and the end face 12a of the nozzle holder 12, which are positioned opposite one another, thus abutting directly against one another, so that the fuel supply lines 15, 17 communicate directly with one another.
In contrast to this, it is also possible to arrange an adapter (not shown) between the nozzle body 11 and the nozzle holder 12, wherein the nozzle body 11 subjected to the intervention of the adapter and the nozzle holder 12 are indirectly clamped together via the clamping nut 13, wherein the end face 11a of the nozzle body 11 then seals against a first abutting end face of the adapter and the opposite second end face of the adapter seals against the end face 12a of the nozzle holder 12.
In particular when such an adapter is present, it is clear that at least one fuel supply line is also introduced into the adapter, so that the respective fuel supply line 15 of the nozzle body 11 then communicates indirectly with the respective fuel supply line 17 of the nozzle holder 12, i.e. via the fuel supply line of the adapter, not shown, extending in between.
FIG. 3 shows a view of the cross section III-III of FIG. 1 and thus the end face 11a of the nozzle body 11. It is clear from fig. 3 that two fuel supply lines 15 are introduced in the nozzle body 11, via which two fuel supply lines 15 fuel can be supplied to the pressure chamber 16 of the nozzle body 11. Thus, two fuel supply lines are then also introduced into the nozzle holder 12, which are in direct or indirect communication with the fuel supply line 15 of the nozzle body 11.
A coolant supply line and a coolant discharge line which communicate with one another are also introduced into the nozzle body 11 and the nozzle holder 12 and, in the case of an optional adapter arranged between the nozzle body 11 and the nozzle holder 12, into the adapter, wherein fig. 3 shows the coolant supply line 22 and the coolant discharge line 23 of the nozzle body 11 in the region of an end face 11a at which, in order to cool the nozzle body 11, coolant can be supplied to the nozzle body 11 and discharged from the nozzle body 11.
These coolant lines 22, 23 of the nozzle body 11 communicate with corresponding coolant lines (not shown) of the nozzle holder 12 and, when an adapter is present, with corresponding coolant lines of the adapter.
In order to seal the fuel lines 15, 17 on the one hand and the coolant lines 22, 23 in the region of the mutually adjoining end faces on the other hand, a recess 24 is introduced into the end face 11a of the nozzle body 11 in the exemplary embodiment shown, which recess 24 separates an outer sealing surface 25 of the end face 11a from at least one inner sealing surface 26 of the end face 11 a. In the exemplary embodiment shown in fig. 3, there are two inner sealing surfaces 26 separated from the outer sealing surface 25 by a recess 24.
The respective inner sealing surfaces 26 of the end face 11a seal the respective communicating fuel lines 15, 17 of the nozzle body 11 and the nozzle holder 12 in the region of the end faces 11a, 12a abutting against one another. If fuel leaks to flow in the area of these inner sealing surfaces 26, it enters the area of the recess 24.
The outer sealing surface 25 of the end face 11a sealingly communicates with the coolant lines 22, 23 in the region of the end faces 11a, 12a of the nozzle body 11 and the nozzle holder 12 abutting one another, wherein coolant leakage flowing via the outer sealing surface 25 can flow on the one hand inwardly into the region of the recess 24 and on the other hand outwardly in the direction of the clamping nut 13.
In the illustrated exemplary embodiment, in which the nozzle body 11 and the nozzle holder 12 are directly axially clamped together without an adapter, the sealing surfaces 25 and 26, i.e., the outer sealing surface 25 and the inner sealing surface 26, are formed on the end face 11a of the nozzle body 11. However, it is also possible to alternatively or additionally form these sealing surfaces 25, 26 on the end face 12a of the nozzle holder 12. However, in order to reduce the production cost, the sealing surfaces 25, 26 described above are mentioned to be provided only on the end surface 11a of the nozzle body 11.
The respective inner sealing surface 26 thus seals the respective fuel supply line 15, 17 with respect to the respective recess 24 along the respective inner sealing surface 26. Fuel leaks into the area of the recess 24.
The respective outer sealing surface 25 seals the respective coolant line 22, 23 with respect to the recess 24 and towards the outside. Thus, coolant leakage may also enter the area of the recess 24.
As shown in fig. 3, especially when a common recess is formed between the outer sealing surface 25 and the inner sealing surface 26, leakage of fuel enters the recess 24 in conjunction with leakage of coolant, and can be discharged without pressure from the recess 24 via a leakage drain 27.
The leakage drain 27 extends in this case in the region of the nozzle holder 12 radially outward past the tappet 21, through the opening 28 of the valve disk 20, along the spring element 18 in the direction of the opening 29 in the valve disk 19, in order to be discharged from the fuel injection valve 10 via the leakage drain opening 30.
The respective inner sealing surface 26 is a high pressure sealing surface for the respective fuel supply line 15, 17. The outer sealing surface 25 is a low pressure sealing surface for the respective coolant line 22, 23.
In the region of the respective inner sealing surface 26, a snap edge can be formed. Such snap edges plastically deform during clamping together of the assembly being axially clamped together via the clamping nut and thus enhance the sealing effect.
Although in the exemplary embodiment shown a common recess 24 is provided for fuel and coolant leakage, in contrast to this it is also possible to introduce separate recesses into the region of the end face 11a which separate the outer sealing surface 25 from the inner sealing surface 26, wherein the first recess then serves for collecting fuel leakage and the second recess serves for collecting coolant leakage in order to drain these leakages from the fuel injection valve 10 via separate leakage drains, respectively.
In contrast to the exemplary embodiment shown, in particular when the adapter is located between the nozzle body 11 and the nozzle holder 12 and thus the nozzle body 11 and the nozzle holder 12 are clamped axially indirectly together with the interposition of the adapter, the sealing surfaces 25, 26 described with reference to fig. 3 can be formed on the end face 11a of the nozzle body 11 on the one hand and on the end face of the adapter facing away from the nozzle body 11, which comes to rest against the end face 12a of the nozzle holder 12, on the other hand.
It is likewise possible to form the sealing surfaces 25, 26 on both end faces of the adapter which are positioned opposite one another, so that the end faces 11a and 12a of the nozzle body 11 and the nozzle holder 12 which abut against the end faces of the adapter are then formed conventionally, i.e. without recesses which are formed and separate the sealing surfaces 25, 26 from one another.
The recesses 28 shown in fig. 3 are holes for receiving dowel pins which, during assembly, serve for the alignment of the nozzle body 11 with the nozzle holder 12, in order to align the fuel lines 15, 17 and the coolant lines 22, 23 running in the nozzle body 11 and the nozzle holder 12 precisely and in a defined manner relative to one another.
The invention therefore proposes a coolant-cooled fuel injection valve in which the fuel line is sealed off from the coolant line by means of spatially and functionally separate sealing surfaces. Preventing fuel leakage into the surroundings. Fuel leakage and coolant leakage can be discharged in a defined manner.

Claims (10)

1. A fuel injection valve (10) for an internal combustion engine,
having a nozzle body (11) which accommodates a nozzle needle (14), wherein at least one fuel supply line (15) is introduced into the nozzle body (11), wherein the at least one fuel supply line (15) opens in a pressure chamber (16) of the nozzle body (11) which partially surrounds the nozzle needle (14),
having a nozzle holder (12), wherein at least one fuel supply line (17) is introduced into the nozzle holder (12), which at least one fuel supply line (17) communicates directly or indirectly via a respective coolant supply line of an adapter with a respective fuel supply line (15) of the nozzle body (11),
having a clamping nut (13) via which clamping nut (13) the nozzle body (11) and the nozzle holder (12) are clamped together axially either directly or indirectly via the adapter while the sealing end faces (11a, 12a) abut against one another,
it is characterized in that the preparation method is characterized in that,
a coolant supply line (22) and a coolant discharge line (23) which communicate with one another are introduced into the nozzle body (11), into the nozzle holder (12) and into an optional adapter, via which coolant for cooling the nozzle body (11) can be supplied to the nozzle body (11) and discharged from the nozzle body (11) via the coolant supply line (22) and the coolant discharge line (23) which communicate with one another,
on the end face (11a) of the nozzle body (11) and/or on the end face (12a) of the nozzle holder (12) or of an adapter adjoining the end face (11a) of the nozzle body (11), an outer sealing surface (25) and at least one inner sealing surface (26) separated from the outer sealing surface (25) by at least one recess (24) are formed, wherein the respective inner sealing surface (26) seals the respective communicating fuel supply line (15, 17) in the region of the mutually adjoining end faces (11a, 12a), and wherein the respective outer sealing surface (25) seals the respective communicating coolant line (22, 23) in the region of the mutually adjoining end faces (11a, 12 a).
2. The fuel injection valve as claimed in claim 1, characterized in that the outer sealing surface (25) and the corresponding inner sealing surface (26) are formed on the end face (11a) of the nozzle body (11) directly adjoining the end face (12a) of the nozzle holder (12), in particular when the nozzle body (11) and the nozzle holder (12) are directly clamped axially together.
3. Fuel injection valve according to claim 1, characterized in that an outer sealing surface and a corresponding inner sealing surface in each case are formed on an end face of the nozzle body directly adjoining a first end face of the adapter and on an opposite second end face of the adapter directly adjoining an end face of the nozzle holder, in particular when the nozzle body and nozzle holder are indirectly clamped together axially via the adapter.
4. The fuel injection valve according to claim 1, characterized in that the outer sealing surface and the respective inner sealing surface are formed on a first end face of the adapter directly adjoining an end face of the nozzle body and on a second end face of the adapter located opposite the end face directly adjoining the nozzle holder, in particular when the nozzle body and a nozzle holder are indirectly clamped axially together via the adapter.
5. The fuel injection valve according to any one of claims 1 to 4, characterized in that the respective recess (24) communicates with a leakage drain (30) in the region of the nozzle holder (12), via which leakage drain (30) leakage that collects in the region of the respective recess (24) can be discharged from the fuel injection valve.
6. The fuel injection valve according to any one of claims 1 to 5, characterized in that the respective inner sealing surface (26) seals the respective fuel supply line (15, 17) with respect to the respective recess (24) along the respective inner sealing surface (26).
7. The fuel injection valve according to one of claims 1 to 6, characterized in that the respective outer sealing surface (26) seals the respective coolant line (22, 23) outwardly with respect to the respective recess (24) along the respective outer sealing surface (25).
8. The fuel injection valve as recited in any one of claims 1 to 6, characterized in that the respective outer sealing surface (25) seals against the outside a respective recess (24) along the respective outer sealing surface (25).
9. The fuel injection valve according to one of claims 1 to 8, characterized in that the respective outer sealing surface (25) and the respective inner sealing surface (26) are separated by a common recess (24) for fuel leakage and coolant leakage.
10. The fuel injection valve of any one of claims 1 to 8 wherein the respective outer sealing surface is separated from the respective inner sealing surface by a respective recess for fuel leakage and coolant leakage.
CN202110126346.6A 2020-01-30 2021-01-29 Fuel injection valve Active CN113202673B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020102194.1 2020-01-30
DE102020102194.1A DE102020102194A1 (en) 2020-01-30 2020-01-30 Fuel injector

Publications (2)

Publication Number Publication Date
CN113202673A true CN113202673A (en) 2021-08-03
CN113202673B CN113202673B (en) 2024-04-23

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Application Number Title Priority Date Filing Date
CN202110126346.6A Active CN113202673B (en) 2020-01-30 2021-01-29 Fuel injection valve

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EP (1) EP3859142B1 (en)
JP (1) JP2021120569A (en)
KR (1) KR20210097638A (en)
CN (1) CN113202673B (en)
DE (1) DE102020102194A1 (en)
FI (1) FI3859142T3 (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1210381A (en) * 1967-01-13 1970-10-28 Bryce Berger Ltd Liquid fuel injection nozzle units for internal combustion engines
DE2707003A1 (en) * 1976-02-20 1977-09-01 Semt DEVICE FOR AVOIDING INJECTION FUEL LOSS TO THE COOLING CIRCUIT OF THE INJECTION NOZZLE OF A DIESEL ENGINE
JPH08326629A (en) * 1995-05-31 1996-12-10 Mitsubishi Motors Corp Fluid injection device
US6142122A (en) * 1998-06-20 2000-11-07 Daimlerchrysler Ag Fuel injection valve for internal combustion engines
EP1165961A1 (en) * 1999-03-31 2002-01-02 Siemens Aktiengesellschaft Fuel injector for an internal combustion engine
CN1578876A (en) * 2001-11-02 2005-02-09 株式会社博世汽车*** Fuel passage sealing structure of fuel injection nozzle
WO2005113977A1 (en) * 2004-05-17 2005-12-01 Siemens Aktiengesellschaft Injection valve for internal combustion engines
CN1796767A (en) * 2004-12-24 2006-07-05 株式会社电装 Injector
CN1815009A (en) * 2005-01-31 2006-08-09 株式会社电装 Fluid injection valve
CN103423052A (en) * 2012-05-15 2013-12-04 曼柴油机和涡轮机欧洲股份公司 Injector for a fuel supply system of an internal combustion engine and fuel supply system
CN103814208A (en) * 2011-06-14 2014-05-21 西港能源有限公司 Dual fuel injection valve

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1210381A (en) * 1967-01-13 1970-10-28 Bryce Berger Ltd Liquid fuel injection nozzle units for internal combustion engines
DE2707003A1 (en) * 1976-02-20 1977-09-01 Semt DEVICE FOR AVOIDING INJECTION FUEL LOSS TO THE COOLING CIRCUIT OF THE INJECTION NOZZLE OF A DIESEL ENGINE
JPH08326629A (en) * 1995-05-31 1996-12-10 Mitsubishi Motors Corp Fluid injection device
US6142122A (en) * 1998-06-20 2000-11-07 Daimlerchrysler Ag Fuel injection valve for internal combustion engines
EP1165961A1 (en) * 1999-03-31 2002-01-02 Siemens Aktiengesellschaft Fuel injector for an internal combustion engine
CN1578876A (en) * 2001-11-02 2005-02-09 株式会社博世汽车*** Fuel passage sealing structure of fuel injection nozzle
WO2005113977A1 (en) * 2004-05-17 2005-12-01 Siemens Aktiengesellschaft Injection valve for internal combustion engines
CN1796767A (en) * 2004-12-24 2006-07-05 株式会社电装 Injector
CN1815009A (en) * 2005-01-31 2006-08-09 株式会社电装 Fluid injection valve
CN103814208A (en) * 2011-06-14 2014-05-21 西港能源有限公司 Dual fuel injection valve
CN103423052A (en) * 2012-05-15 2013-12-04 曼柴油机和涡轮机欧洲股份公司 Injector for a fuel supply system of an internal combustion engine and fuel supply system

Also Published As

Publication number Publication date
DE102020102194A1 (en) 2021-08-05
KR20210097638A (en) 2021-08-09
EP3859142A1 (en) 2021-08-04
JP2021120569A (en) 2021-08-19
EP3859142B1 (en) 2023-12-20
FI3859142T3 (en) 2024-03-14
CN113202673B (en) 2024-04-23

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