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CN113202673B - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

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Publication number
CN113202673B
CN113202673B CN202110126346.6A CN202110126346A CN113202673B CN 113202673 B CN113202673 B CN 113202673B CN 202110126346 A CN202110126346 A CN 202110126346A CN 113202673 B CN113202673 B CN 113202673B
Authority
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.)
Active
Application number
CN202110126346.6A
Other languages
Chinese (zh)
Other versions
CN113202673A (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
Original Assignee
MAN Energy Solutions SE
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 MAN Energy Solutions SE filed Critical MAN Energy Solutions SE
Publication of CN113202673A publication Critical patent/CN113202673A/en
Application granted granted Critical
Publication of CN113202673B publication Critical patent/CN113202673B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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

Landscapes

  • 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 a 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, the at least one fuel supply line being in communication 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, which are in communication 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 198 27 628a 1. Thus, DE 198 27 628a1 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 is introduced into the nozzle body, which leads to a pressure chamber for the fuel of the nozzle body surrounding the nozzle needle. Also attached in the nozzle holder is at least one fuel supply line which is clamped together axially 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 intervention of an adapter between the nozzle holder and the nozzle body. The end faces of the nozzle body and the nozzle holder of the mutually abutting fuel injection valve are pressed against each other by axial clamping via the clamping nut, so that a seal is thus provided at the mutually abutting end faces.
According to DE 198 27 268a1, a 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 end faces of the nozzle body and the nozzle holder. The fuel leakage migrating through the sealing surface can reach the outside.
Another fuel injection valve for an internal combustion engine is known from DE 199 14 720b 4. The fuel injection valve includes a union nut that houses a plurality of injector modules, i.e., an injector head, a servo body, a transfer case, an adapter body, and a nozzle body, one on top of the other. 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 a recess on the end face.
In the case of cooled injection valves, sealing of the fuel line and the coolant line has hitherto created 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 the invention. According to the present invention, the coolant supply line and the coolant discharge line, which are in communication with each other, are introduced into the nozzle body, the nozzle holder is introduced and the optional adapter is introduced, and in order to cool the nozzle body, the coolant can be supplied to and discharged from the nozzle body via the coolant supply line and the coolant discharge line, which are in communication with each other. 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 invention, separate sealing surfaces are formed, separate from each other, for the sealing of the fuel line and for the 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 respective end surfaces adjoining each other and the respective outer sealing surface seals the coolant line of the assembly of the fuel injection valve adjoining each other. The fuel leakage is trapped in the area of the recess and cannot reach the outside via the respective outer sealing surface. Coolant leakage may also migrate into the corresponding 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 in the region of the nozzle holder, via which leakage drain the leakage collected in the region of the recess can be discharged. In this way, leakage collected in the region of the respective recess can be discharged from the fuel injection valve particularly advantageously.
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 separate recesses for fuel leakage and coolant leakage. The first version, which provides a common recess for fuel leakage and coolant leakage, is simpler in design. The second version with separate recesses for fuel leakage and coolant leakage is more complex in design, but allows separate venting of the fuel leakage and coolant leakage.
Further preferred developments of the invention emerge 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 drawings show:
FIG. 1 shows an axial section through a fuel injection valve;
Fig. 2 shows a 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 example 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 guided axially movably 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 that partly surrounds the nozzle needle 14.
The nozzle body 11 is clamped together axially 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 accommodates 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 disk 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 element 18, the nozzle needle 14 can be moved axially, so that the nozzle body 11 is opened when the force dependent on the pressure in the pressure chamber 16 is greater than the spring force of the spring element 18.
In the exemplary embodiment shown, the nozzle body 11 and the nozzle holder 12 are clamped together directly axially 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 to each other, thus directly abut against each other, so that the fuel supply lines 15, 17 are in direct communication with each other.
In contrast thereto, an adapter (not shown) may also be arranged between the nozzle body 11 and the nozzle holder 12, wherein the nozzle body 11 and the nozzle holder 12, which are subject to the intervention of the adapter, are indirectly clamped together via the clamping nut 13, wherein the end face 11a of the nozzle body 11 is then sealed against a first abutment end face of the adapter and an opposite second end face of the adapter is sealed against the end face 12a of the nozzle holder 12.
In particular when such an adapter is present, it is also obvious that at least one fuel supply line is 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 a fuel supply line of the adapter, not shown, extending in the middle.
Fig. 3 shows a view of the cross section III-III of fig. 1 and thus of 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 are in communication with each other, are also introduced into the nozzle body 11 and the nozzle holder 12, and in the case where an optional adapter is arranged between the nozzle body 11 and the nozzle holder 12, the coolant supply line and the coolant discharge line are also introduced 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 the end face 11a, at which end face 11a coolant can be supplied to the nozzle body 11 and discharged from the nozzle body 11 in order to cool 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 also with corresponding coolant lines of the adapter when present.
In order to seal the fuel lines 15, 17 on the one hand and the coolant lines 22, 23 on the other hand in the region of the mutually adjoining end faces, 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 surfaces 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 surfaces 11a, 12a abutting each other against each other. If fuel leaks flow in the region of these inner sealing surfaces 26, they enter the region of the recess 24.
The outer sealing surface 25 of the end face 11a seals the communicating coolant lines 22, 23 in the region of the end faces 11a, 12a of the nozzle body 11 and the nozzle holder 12 abutting against one another, wherein coolant leakage flowing via the outer sealing surface 25 can flow inwards on the one hand into the region of the recess 24 and outwards on the other hand 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, sealing surfaces 25 and 26, i.e., an outer sealing surface 25 and an inner sealing surface 26, are formed on the end face 11a of the nozzle body 11. However, it is also possible alternatively or additionally to form these sealing surfaces 25, 26 on the end face 12a of the nozzle holder 12. However, in order to reduce production costs, it is mentioned that the above-described sealing surfaces 25, 26 are provided only on the end face 11a of the nozzle body 11.
The respective inner sealing surface 26 thus seals the respective fuel supply line 15, 17 against the respective recess 24 along the respective inner sealing surface 26. Fuel leaks into the area of recess 24.
The respective outer sealing surface 25 seals the respective coolant line 22, 23 against the recess 24 and towards the outside. Thus, coolant leakage may also enter the region of recess 24.
As shown in fig. 3, particularly 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 together with leakage of coolant, and results from the recess 24 being dischargeable without pressure via the leakage drain 27.
The leakage drain 27 extends in this case radially outwards through the plunger 21 in the region of the nozzle holder 12, through the bore 28 of the valve disk 20 in the direction of the bore 29 in the valve disk 19 along the spring element 18, in order to be discharged from the fuel injection valve 10 there via a leakage drain bore 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-in edge may be formed. Such snap edges are plastically deformed during clamping together of the assembly axially clamped together via the clamping nut and thus enhance the sealing effect.
Although in the exemplary embodiment shown the common recess 24 is provided for fuel leakage and coolant leakage, in contrast to this it is also possible to introduce separate recesses separating the outer sealing surface 25 from the inner sealing surface 26 into the region of the end face 11a, wherein the first recess is then used for collecting fuel leakage and the second recess is used for collecting coolant leakage, in order to drain these leakage 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 indirectly clamped together axially, subject to the intervention of the adapter, the sealing surfaces 25, 26 described with reference to fig. 3 can be formed on the one hand on the end face 11a of the nozzle body 11 and on the other hand on the end face of the adapter facing away from the nozzle body 11, which end face reaches against the end face 12a of the nozzle holder 12.
It is also possible to form the sealing surfaces 25, 26 on both end faces of the adapter located opposite to each other, so that the end faces 11a and 12a of the nozzle body 11 and the nozzle holder 12 which abut on the end faces of the adapter are then conventionally formed, i.e. without forming recesses separating the sealing surfaces 25, 26 from each other.
The recess 28 shown in fig. 3 is a hole for receiving a locating pin for alignment of the nozzle body 11 with the nozzle holder 12 during assembly in order to accurately and in a defined manner align the fuel lines 15, 17 and the coolant lines 22, 23 extending in the nozzle body 11 and the nozzle holder 12 with respect to each other.
The invention therefore proposes a coolant-cooled fuel injection valve in which the fuel line is sealed from the coolant line via spatially and functionally separate sealing surfaces. Preventing leakage of fuel into the surroundings. The fuel leakage and the 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), the at least one fuel supply line (15) opening 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), the at least one fuel supply line (17) being in communication with a respective fuel supply line (15) of the nozzle body (11) directly or indirectly via a respective fuel supply line of an adapter,
Having a clamping nut (13), via which clamping nut (13) the nozzle body (11) and the nozzle holder (12) are clamped together axially directly or indirectly via the adapter while the sealing end faces (11 a, 12 a) abut against each other,
It is characterized in that the method comprises the steps of,
A coolant supply line (22) and a coolant discharge line (23) which communicate with each other are introduced into the nozzle body (11), the nozzle holder (12) is introduced and an optional adapter is introduced, the 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 each other,
On the end face (11 a) of the nozzle body (11) and/or on the end face (12 a) of the nozzle holder (12) or the end face of the adapter adjoining the end face (11 a) 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 (11 a, 12 a), 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 (11 a, 12 a).
2. A fuel injection valve according to claim 1, characterized in that the outer sealing surface (25) and the corresponding inner sealing surface (26) are formed on an end face (11 a) of the nozzle body (11) directly adjoining an end face (12 a) of the nozzle holder (12) when the nozzle body (11) and the nozzle holder (12) are directly clamped together axially.
3. The fuel injection valve of claim 1 wherein when the nozzle body and nozzle holder are indirectly clamped together axially via the adapter, 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 an opposite second end face of the adapter directly adjoining an end face of the nozzle holder.
4. The fuel injection valve of claim 1 wherein said outer and corresponding inner sealing surfaces are formed on a first end face of said adapter directly adjacent an end face of said nozzle body and on a oppositely positioned second end face of said adapter directly adjacent an end face of said nozzle holder when said nozzle body and nozzle holder are indirectly axially clamped together via said 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) the leakage collected 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 4, wherein 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. A fuel injection valve according to any one of claims 1-4, characterized in that the respective outer sealing surface (26) seals the respective coolant line (22, 23) against the respective recess (24) along the respective outer sealing surface (25) and towards the outside.
8. A fuel injection valve according to any one of claims 1 to 4, wherein the respective outer sealing surface (25) seals outwardly along the respective recess (24) of the respective outer sealing surface (25).
9. A fuel injection valve according to any one of claims 1-4, characterized in that the respective outer sealing surface (25) is separated from the respective inner sealing surface (26) by a common recess (24) for fuel leakage and coolant leakage.
10. The fuel injection valve of any one of claims 1 to 4 wherein the respective outer sealing surface is separated from the respective inner sealing surface by respective recesses 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
DE102020102194.1A DE102020102194A1 (en) 2020-01-30 2020-01-30 Fuel injector
DE102020102194.1 2020-01-30

Publications (2)

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

Family

ID=74347027

Family Applications (1)

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

Country Status (6)

Country Link
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 株式会社博世汽车系统 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 Ejector
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 株式会社博世汽车系统 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 Ejector
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
EP3859142A1 (en) 2021-08-04
CN113202673A (en) 2021-08-03
DE102020102194A1 (en) 2021-08-05
FI3859142T3 (en) 2024-03-14
KR20210097638A (en) 2021-08-09
EP3859142B1 (en) 2023-12-20
JP2021120569A (en) 2021-08-19

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