EP3329115A1 - Method for producing a nozzle body for a fluid injection valve, and fluid injection valve - Google Patents
Method for producing a nozzle body for a fluid injection valve, and fluid injection valveInfo
- Publication number
- EP3329115A1 EP3329115A1 EP16734610.5A EP16734610A EP3329115A1 EP 3329115 A1 EP3329115 A1 EP 3329115A1 EP 16734610 A EP16734610 A EP 16734610A EP 3329115 A1 EP3329115 A1 EP 3329115A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle body
- blind hole
- wall
- injection hole
- diameter
- 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
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
- F02M61/04—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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- 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
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/1833—Discharge orifices having changing cross sections, e.g. being divergent
-
- 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
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/1846—Dimensional characteristics of discharge orifices
Definitions
- the invention relates to a method for producing a nozzle body for a fluid injection valve and a fluid injection valve for a motor vehicle, which are suitable for metering fluid, in particular of fuel.
- the fluid penetration is given by a distribution of the fluid spray after a predetermined delay time, starting from a start time of the injection into the combustion chamber.
- the fluid penetration along an added auditory axis of the respective injection hole dimensioned and re ⁇ presents a distance from an outer mouth of the injection hole, which is the combustion chamber of the internal combustion engine ⁇ turned to, for example, up to a predetermined deceleration point.
- a method for producing a nozzle body for a fluid injection valve comprises providing a raw nozzle body having a longitudinal axis and, with respect to the longitudinal axis, a first axial end and a second axial end.
- the second axial end has a nozzle body tip.
- the method further comprises introducing a nozzle body recess from the first axial end into the raw nozzle body and thereby forming a wall between the nozzle body recess and an outer surface of the raw nozzle body.
- the method comprises providing geometry data of at least one injection hole to be provided, which is intended to penetrate the wall outwardly from the nozzle body recess, with an inner orifice facing the nozzle body recess and an outer orifice facing the outer surface.
- the method of the outer mouth of each injection hole comprises determining a height of a blind hole stage of a blind hole to be formed in response to a predetermined fluid penetration starting the environment of the SI ⁇ sen stressess.
- the shape of a spray cone of the fluid delivered by means of the injection hole is predetermined, and the height of the blind hole stage is determined as a function of the shape of the spray cone.
- the "environment" of the nozzle body is, in particular, the space adjoining the outer surface of the wall and remote from the nozzle body recess.
- the method comprises adapting a part of the shape of an inner surface of the wall and thereby forming the blind hole with the blind hole stage with the determined height with respect to the longitudinal axis in a region of the second axial end of the Rohdüsen stressess.
- the method comprises introducing the at least one injection hole with the provided geometry data in a region of the blind hole between a blind hole end that faces the second axial end and the nozzle body tip such that the at least one injection hole penetrates the wall.
- an inner and / or outer contour of the nozzle body is first produced, for example.
- the raw nozzle body already has a prefabricated inner and / or outer contour of the nozzle body.
- the trainee blind hole stage of the associated blind hole is not yet introduced as desired.
- the height of the blind hole stage is determined prior to introduction into the provided and optionally prefabricated Rohdüsen endeavor depending on a given fluid penetration for the nozzle body or an associated fluid injection valve and subsequently, for example by means of drilling or milling, formed a blind hole contour of the blind hole.
- the introduction of the blind hole contour with the determined height of the blind hole level on an inside of Rohdüsen emotionss performed, for example before introducing the at least one injection hole, which is for example likewise drilled in the about fer ⁇ term nozzle body and / or milled.
- the term "blind hole contour" is at least a part of the shape of an inner surface of the wall. In this way, the fluid penetration can be controlled without, for example, promoting sooting of the nozzle body tip.
- Forming the sack stage having the detected height may affect the fluid penetration for all injection holes to be formed, for example, because the blind hole stage is located in front of the inner mouth of the respective injection hole with respect to a flow direction of a flowing fluid.
- An individual adaptation of the fluid penetration of a respective injection hole can be achieved, for example, by adjusting the
- Diameter and / or a cone-shaped forming the injection hole can be realized.
- the blind hole stage is formed, for example, substantially parallel to the longitudinal axis of the nozzle body.
- the blind hole stage may also have a predetermined inclination to the longitudinal axis and thereby influence the Fluidpe ⁇ netration.
- the height of the blind hole stage then refers, for example, to a projection of its geometric length parallel to the longitudinal axis.
- blind hole stage refers to a blind-hole portion in which the inner surface of the wall is cylindrical
- the fluid penetration is selectively controlled by geometry data, which are essentially controlled within the nozzle body possibly also abbreviated to the term "geometry".
- the injection hole is formed such that it penetrates the wall from the nozzle body recess to the outer surface of the nozzle body unthreatened.
- the risk of coking in the injection hole is particularly low.
- a nozzle body and a fluid injection valve can be realized, which counteract an increased deposition of carbon and help to keep pollutant emissions low in an associated internal combustion engine.
- a length and a diameter are determined as the geometry of the at least one injection hole as a function of the predetermined fluid penetration.
- a desired fluid penetration can be specifically achieved by forming and interacting with a plurality of geometric parameters and optimized depending on the application and combustion chamber become.
- a fluid penetration for each injection hole can be adjusted individually and / or specifications for a fluid penetration can be met, which would not be achieved by the geometry of the blind hole stage alone.
- the height of the blind hole stage is determined as a function of the determined length and the determined diameter of the at least one injection hole.
- Such a method takes into account that the fluid penetration is dependent on an interaction of the length and the diameter of the respective injection hole and the height of the blind hole stage. Depending on these parameters can be matched to one another from one another such that a desired fluid penetration it is sufficient ⁇ .
- the requirements of the fluid penetration should preferably be achieved by forming the blind hole stage.
- a value for the height of the blind hole stage is determined, which can be realized only with difficulty in the context of a manufacturing process. Then it is useful, for example, to determine a value for the height of the blind stage additionally depending on the geometry of the injection hole, so as to achieve the desired Fluidpe ⁇ netration and to allow a simple manufacturing process.
- adjusting the part of the shape of the inner surface of the wall and thereby forming the blind hole with the blind hole stage with the determined height by the wall thickness of a portion of the wall between the nozzle body and the outer surface is reduced.
- the wall thickness is reduced by means of a material-removing method, such as drilling or milling.
- nozzle bodies are made of the same raw nozzle bodies different spray cones can be produced without modifications of the outer surface of the nozzle body - for example in the form of stepped holes - would be required. The production can be done so particularly inexpensive.
- the height of the blind hole stage is expediently chosen such that when forming the blind hole, the blind hole stage reduces the wall thickness between the inner surface and the outer surface to such an extent that when inserting the injection hole with the determined length and the outer mouth in the outer surface inner mouth is positioned in the inner surface.
- the method comprises providing a cone-shaped geometry of the at least one injection hole, the geometry data comprising a first and a second diameter.
- the method further comprises determining the first diameter and the second diameter of the at least one injection hole in dependence on the predetermined fluid penetration, wherein the first diameter of the inner orifice and the second diameter of the outer orifice is associated.
- a cone-shaped injection hole has a truncated cone shape. This can be beneficial to fluid penetration impact. Depending on the particular application and the respective combustion chamber of the associated internal combustion engine, a cone-shaped injection hole or a cylindrical injection hole may be advantageous for achieving the specifications for a desired fluid penetration.
- a value for the height of the blind hole stage is determined, which can only be realized with difficulty in the context of a production method and in combination with a cylindrical injection hole. Then it may be useful to provide a cone-shaped geometry of the injection hole and to determine the length and the first and second diameter of the at least one injection hole depending on the desired fluid penetration.
- the first diameter and the second diameter of the at least one injection hole are additionally determined as a function of the determined height.
- the fluid penetration is dependent on an interaction of the length and the two diameter of the cone-shaped injection hole. It can also be dependent on the height of the blind hole stage. Depending on each other, these parameters can be coordinated so that a desired fluid penetration is achieved. So it is also possible that the height of the blind hole stage depends on the cone-shaped geometry of the injection hole is determined because the dependence exists on both sides.
- adjusting a part of the shape of the inner surface of the wall comprises forming a seat region for a nozzle needle adjacent to the blind hole step in the direction of the first axial end.
- One such method includes forming a seat area for a nozzle needle that prevents or otherwise releases fluid flow in a fluid injection valve in a closed position in contact with the seating area.
- adjusting a part of the shape of the inner surface of the wall comprises forming a guide region for guiding a nozzle needle in the region of the first axial end in the direction of the second axial end.
- This process step also enables a further Substituted ⁇ staltung of the nozzle body for use in a fluid injection valve to permit a controlled metering of fluid by means of the nozzle body and the associated fluid-injection valve.
- the adaptation of a part of the shape of the inner surface of the wall for forming the seat region and / or the guide region can take place in the context of the method temporally before or after or simultaneously with the adaptation of a part of the shape of the inner surface of the wall to form the blind hole.
- an apparatus for a fluid injection valve includes a nozzle body made according to any of the methods of manufacturing the nozzle body described above, and a valve body coupled to the nozzle body.
- a device realizes a possible intermediate stage between the production of the nozzle body and a fluid injection valve, which comprises an embodiment of the nozzle body.
- the above-described objective properties and functions of the method for producing the nozzle body also apply to the device.
- the nozzle body is positively and / or positively and / or materially coupled to the valve body.
- Such a device realizes possible types of coupling of the nozzle body with the valve body, in which the nozzle body produced as described be ⁇ example, in a further process step with the valve body is connected conclusively.
- the valve body may be formed integrally with the nozzle body.
- a valve body is also formed which is suitable, for example, for receiving further components of the fluid injection valve.
- the raw nozzle body provided in the method for producing a nozzle body also comprises the valve body to be formed, and the described nozzle body substantially forms the tip of the valve body.
- a fluid injection valve for a motor vehicle is specified.
- This can have a nozzle body or the device with the nozzle body.
- it has a nozzle needle, which is arranged at least partially axially movable in the nozzle body recess with respect to the longitudinal axis and which is designed to prevent a fluid flow in a closed position in cooperation with a seating area and otherwise release it.
- a fluid injection valve has in particular the previously described properties of the device or of the nozzle body, which is produced according to one of the methods described above.
- FIG. 1 shows a flowchart for a method for producing a nozzle body
- FIG. 1 shows an example of a flowchart for a
- Method for producing a nozzle body 1 for a fluid injection valve which is started in a step S1 and in which a raw nozzle body is provided having a longitudinal axis A and a first axial end 3 and a second axial end 5 with a nozzle body tip 20 with respect to the longitudinal axis A. having .
- a nozzle body recess 7 is introduced into the raw nozzle body starting from the first axial end 3, thereby forming a wall 9 between the nozzle body recess 7 and an outer surface 11 of the raw nozzle body.
- the nozzle body recess 7 is drilled and / or rotated, for example, in the Rohdüsenigen.
- a geometry of at least one injection hole 17 to be provided is provided which is intended to penetrate the wall 9 outwardly from the nozzle body 7, with an inner mouth 18, that of the nozzle body recess 7 facing, and an outer mouth 19, which faces the outer surface 11.
- the provided geometry includes, for example, a diameter and a length L and a diameter for a cylindrical injection hole 17 to be formed.
- the geometry provided includes a first diameter Dl, a second diameter D2, and a length L for a cone-shaped injection hole 17 to be formed 17 provided for the nozzle body 1, if necessary, some injection holes 17 are cylindrical and some conical.
- the provided geometric data for each injection hole 17 additionally comprise at least one element from the following group: distance from the longitudinal axis A, axial position with respect to the longitudinal axis A, angular position with respect to the longitudinal axis A, inclination with respect to the longitudinal axis A.
- step S6 the to be provided geometry determined in dependence on a predetermined fluid penetration, starting from the outer mouth 19 of the respective injection hole 17 to the outside of the nozzle body 1. For example, values for diameter Dl and D2 and length L of a cone-shaped injection hole 17 are determined, which make a contribution to a to achieve desired fluid penetration.
- a nozzle body 1 which has a blind hole contour determined as a function of a desired fluid penetration, thus enables reliable operation of a fluid injection valve, which comprises the nozzle body 1 to be manufactured, and contributes to an increased service life.
- the formation of the sack stage 15 with the determined height H has an effect on the fluid penetration for all injection holes 17 to be introduced, since the blind hole stage 15 is in front of the inner one with respect to a flow direction of a flowing fluid
- Mouth 18 of the respective injection hole still to be introduced 17 is arranged.
- the respective injection hole 17 is then arranged downstream of the blind hole stage 15 with respect to the direction of flow of a fluid.
- the at least one intended injection hole 17 is formulated between a blind-end step end
- the height H of the blind hole stage 15 is additionally in dependence of the provided and optionally ermit ⁇ telten geometry of the trainees at least detects an injection hole 17th
- the fluid penetration is dependent on an interaction, for example, the length L and the diameter of a cylindrical injection hole 17 and the height H of the blind hole stage 15.
- these parameters can be coordinated so that a desired fluid penetration is achieved. For example, requirements for the fluid penetration can thus be met, which are only difficult to realize by means of forming the blind hole 15 alone.
- the blind hole stage 15 is formed substantially parallel to the longitudinal axis A of the nozzle body 1.
- the blind hole 15 but also have a tendency to the longitudinal axis A and thereby affect the fluid penetration.
- the height H of the blind hole stage 15 then relates, for example, to a projection of its geometrical length parallel to the longitudinal axis A.
- the adaptation of a part of the shape of the inner surface of the wall 9, for example, also includes forming a seat region 21 for a nozzle needle adjacent to the blind hole 15 in the direction of the first axial end 3 and thus facing away from the Nozzle body tip 20.
- the seating area 21 in cooperation with a sealing seat of the nozzle needle, prevents fluid flow and otherwise releases it in an open position.
- Optionally includes adjusting a portion of the shape of the inner face of the wall 9 In ⁇ also forming a guide portion 23 for guiding the nozzle needle in the region of the first axial end 3 towards the second axial end. 5
- Sil is the at least one A ⁇ injection hole 17 provided with the geometry data and, if appropriate ration function of the predetermined Fluidpenet- and / or the height determined H of the blind section 15 in an area of the blind hole 13 between the blind hole step end 16, the second axial end 15 faces, and introduced the nozzle body tip 20.
- the at least one injection hole 17 is introduced by drilling and / or turning in the Rohdüsenanalysis and so the nozzle body 1 is formed.
- a step S13 the method for manufacturing the nozzle body for a fluid injection valve is ended.
- the determination of the height H in dependence on the given geometry data - for example, as a function of length L, the inclination and the distance from the longitudinal axis - and the shape of the Rohdü- sen stressess takes place.
- the height H is selected such that the blind hole stage 15 reduces the wall thickness of the wall 9 in such a way that the injection hole 17 introduced into the wall 9 according to the geometry data provided, the wall downstream of the blind hole 15 from its inner surface 10 bis to the outer surface 11 of the nozzle body 1 - in particular continuously - penetrates.
- FIG. 2 shows a sectional illustration of an exemplary embodiment of the nozzle body 1 which has been produced, for example, by means of the method described in FIG.
- the nozzle body 1 has the first axial end 3, the second axial end 5 and the longitudinal axis A and is formed substantially rotationally symmetrical.
- the wall 9 forms the nozzle body recess 7 and comprises the guide region 23, the seating area 21 and a blind hole contour of the blind hole 13 with the blind hole stage 15, which is formed with the height H determined as a function of the predetermined fluid penetration.
- the blind hole 15 is formed cylindrical-shell-shaped coaxially to the longitudinal axis A.
- the blind hole 15 optionally has an inclination to the longitudinal axis A, so that the nozzle body 1 comprises a frustoconical blind hole stage 15.
- the first diameter D 1 is assigned to the inner opening 18 and is smaller than the second diameter D 2, which is assigned to the outer opening 19 of the injection hole 17.
- the injection hole 17 has a cone angle K, which can affect the fluid penetration.
- the cone angle K is determined by the two diameters D1 and D2 and the length L of the injection hole 17 and is the geometry of the injection hole 17 in the context of producing the nozzle body 1 provided and optionally determined as a function of ge ⁇ desired fluid penetration.
- the nozzle body 1 allows in a simple manner by means of the controlled trained blind hole 15 with the determined height H a desired fluid penetration and thereby reliable operation of an associated fluid injection valve. It helps to keep pollutant emissions low in an internal combustion engine.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015214306.6A DE102015214306A1 (en) | 2015-07-29 | 2015-07-29 | A method of manufacturing a nozzle body for a fluid injection valve and fluid injection valve |
PCT/EP2016/065131 WO2017016778A1 (en) | 2015-07-29 | 2016-06-29 | Method for producing a nozzle body for a fluid injection valve, and fluid injection valve |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3329115A1 true EP3329115A1 (en) | 2018-06-06 |
EP3329115B1 EP3329115B1 (en) | 2019-08-07 |
EP3329115B8 EP3329115B8 (en) | 2019-12-18 |
Family
ID=56345107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16734610.5A Active EP3329115B8 (en) | 2015-07-29 | 2016-06-29 | Method for producing a nozzle body for a fluid injection valve, and fluid injection valve |
Country Status (6)
Country | Link |
---|---|
US (1) | US20180149128A1 (en) |
EP (1) | EP3329115B8 (en) |
KR (1) | KR102113932B1 (en) |
CN (1) | CN107850028B (en) |
DE (1) | DE102015214306A1 (en) |
WO (1) | WO2017016778A1 (en) |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8817774D0 (en) * | 1988-07-26 | 1988-09-01 | Lucas Ind Plc | Fuel injectors for i c engines |
GB9203658D0 (en) * | 1992-02-19 | 1992-04-08 | Lucas Ind Plc | Fuel injection nozzles |
US6908049B2 (en) * | 2003-11-14 | 2005-06-21 | Alfred J. Buescher | Diesel injection nozzle |
DE102006013962A1 (en) * | 2006-03-27 | 2007-10-04 | Robert Bosch Gmbh | Injection nozzle with injection channels and method for introducing channels |
DE102006043460A1 (en) * | 2006-09-15 | 2008-03-27 | Man Diesel Se | Method for optimizing injection nozzle for internal combustion engine, involves sliding nozzle body and needle axially in bore of body, where particle swarm optimization is used for geometric arrangement of nozzle |
GB0625770D0 (en) * | 2006-12-22 | 2007-02-07 | Delphi Tech Inc | Fuel injector for an internal combustion engine |
CN201007251Y (en) * | 2007-01-16 | 2008-01-16 | 郭义成 | Pin valve body with seat face stepdouble cones structure |
DE102008039920A1 (en) * | 2008-08-27 | 2010-03-04 | Continental Automotive Gmbh | Nozzle body, nozzle assembly and fuel injector, and method of making a nozzle body |
DE102008055069A1 (en) * | 2008-12-22 | 2010-07-01 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines, has valve body, in which pressure chamber is formed, and valve needle is arranged in longitudinally sliding manner in pressure chamber |
JP2011127487A (en) * | 2009-12-16 | 2011-06-30 | Denso Corp | Fuel injection valve |
DE102010032050B4 (en) * | 2010-07-23 | 2017-12-21 | Continental Automotive Gmbh | Nozzle body with blind hole |
JP5537512B2 (en) * | 2011-07-25 | 2014-07-02 | 日立オートモティブシステムズ株式会社 | Fuel injection valve |
DE102011089512A1 (en) * | 2011-12-22 | 2013-06-27 | Continental Automotive Gmbh | Method for manufacturing nozzle assembly of injection valve used for combustion engine of motor car, involves introducing conical stepped recess into die casing, based on cone angle of recess |
DE102012006127A1 (en) * | 2012-03-20 | 2013-09-26 | Sitec Automation Gmbh | Method for electrochemical processing of cross-sections of holes and openings in workpiece, involves applying electrolyte beam to hole such that beam is passed through inlet cross-section of hole toward outlet cross-section |
US9151259B2 (en) * | 2012-06-11 | 2015-10-06 | Continental Automotive Systems, Inc. | Stepped orifice hole |
JP6166168B2 (en) * | 2013-12-11 | 2017-07-19 | 株式会社デンソー | Fuel injection valve |
EP2905457B1 (en) * | 2014-01-15 | 2018-08-29 | Continental Automotive GmbH | Valve assembly and fluid injector for a combustion engine |
JP5943060B2 (en) * | 2014-12-18 | 2016-06-29 | 株式会社デンソー | Fuel injection device |
-
2015
- 2015-07-29 DE DE102015214306.6A patent/DE102015214306A1/en not_active Withdrawn
-
2016
- 2016-06-29 CN CN201680044448.0A patent/CN107850028B/en active Active
- 2016-06-29 WO PCT/EP2016/065131 patent/WO2017016778A1/en active Application Filing
- 2016-06-29 KR KR1020187005886A patent/KR102113932B1/en active IP Right Grant
- 2016-06-29 EP EP16734610.5A patent/EP3329115B8/en active Active
-
2018
- 2018-01-29 US US15/882,499 patent/US20180149128A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE102015214306A1 (en) | 2017-02-02 |
EP3329115B1 (en) | 2019-08-07 |
CN107850028A (en) | 2018-03-27 |
US20180149128A1 (en) | 2018-05-31 |
KR102113932B1 (en) | 2020-05-21 |
EP3329115B8 (en) | 2019-12-18 |
CN107850028B (en) | 2021-06-08 |
WO2017016778A1 (en) | 2017-02-02 |
KR20180034625A (en) | 2018-04-04 |
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