EP3365548A1 - Injecteur de carburant - Google Patents
Injecteur de carburantInfo
- Publication number
- EP3365548A1 EP3365548A1 EP16787766.1A EP16787766A EP3365548A1 EP 3365548 A1 EP3365548 A1 EP 3365548A1 EP 16787766 A EP16787766 A EP 16787766A EP 3365548 A1 EP3365548 A1 EP 3365548A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- movable
- effective diameter
- bore
- cylinder
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
- F02M51/066—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
-
- 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
- F02M55/002—Arrangement of leakage or drain conduits in or from injectors
-
- 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
- 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
- F02M61/1873—Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal
-
- 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
- F02M2200/46—Valves, e.g. injectors, with concentric valve bodies
-
- 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
- F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
-
- 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
- F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
- F02M2200/502—Springs biasing the valve member to the open position
Definitions
- the present invention relates to a fuel injector more
- the injector itself being provided with a nozzle whose needle is directly open or closed by a coil electromagnetic actuator.
- a prior art fuel injector includes a coil and magnetic armature actuator acting directly on a valve member to open or close fuel injection holes.
- Such an injector imposes a valve member that is hydraulically balanced, or almost balanced, so that the relatively weak force exerted by
- ⁇ solenoid actuator is sufficient to move said valve member.
- the present invention aims to remedy the disadvantages mentioned above by proposing a simple and economical solution.
- the invention proposes a movable valve member adapted to be arranged in the nozzle body of a fuel injector, the mobile member extending along a main axis between an upper end and a lower end provided with a movable valve seat arranged to cooperate along a circular line of effective diameter with a fixed seat arranged on the inner face of the nozzle body.
- the movable member is adapted to slide between a closed position in which the two valve seats are in sealing contact along said circular line preventing fuel injection and an open position in which the two valve seats are remote. one of the other allowing said injection .;
- the mobile member advantageously comprises a piston formed of a first male cylinder of effective diameter forming the upper end of the mobile member and a second cylinder of larger outer diameter provided with an internal cylindrical bore of effective diameter extending axially in the second cylinder to a bottom and a shutter member formed of a cylindrical body comprising a male cylindrical shaft of effective diameter slidably fitted with clearance in the internal bore of the piston and, of a male pointed cylindrical member of larger diameter than the effective diameter, the pointed cylindrical member extending to an end in tip provided with the movable valve seat and forming the lower end of the movable member.
- the movable valve member is
- the movable member further comprises a first compressed spring between the piston and the obturator member and continuously urging the piston and the obturator member towards an extension of the movable member.
- the shutter member further comprises a disc flange substantially arranged between the cylindrical shaft and the pointed cylinder, said flange extending radially from the cylindrical body of the shutter member to a peripheral edge provided to fit sliding against the inner face of the injector nozzle body.
- the flange has an upper face opposite the piston and an opposite lower face facing the valve seat.
- Said flange further defines a first restricted orifice and a second restricted orifice extending between the opposite faces of the flange and allowing pressurized fuel to pass at a reduced speed from one side to the other of the flange. creating a pressure difference between the faces of the collar.
- the piston is further provided with a return channel extending from the bottom of the internal bore and opening at the top end of the first cylinder.
- the bore comprises a first section of diameter wider than the effective diameter and a second section of effective diameter so that the piston comprises a circular end forming a sealing lip cooperating with a circular annular surface of the upper face of the collar.
- the first restricted orifice being arranged outside of said circular annular surface and, the second restricted orifice being arranged inside said circular annular surface.
- the movable member is limited in extension by a mooring means preventing the shutter member from disengaging the piston and, in compression by the sealing lip in sealing abutment on the upper face of the collar.
- the invention also relates to an injection nozzle of a high-pressure fuel injector, the nozzle comprising a movable valve member produced according to the preceding paragraphs.
- the nozzle also includes a nozzle body elongate along the major axis, the body having a cylindrical lateral peripheral wall fused at one end and an upper wall at the other end.
- the upper wall is provided with a pressurized fuel inlet port and an axial bore opening annular guide of effective diameter and the tapered end is provided on the inner face of the wall of the nozzle body of the seat fixed valve arranged near injection holes extending through the peripheral wall.
- the movable member is arranged axially sliding in the interior space of the nozzle body, the first cylinder of the piston being slidably fitted with play in the opening annular guide, so that the movable valve seat cooperates with the fixed valve seat and that the movable assembly is slidable along the main axis between the closed position and the open position in which the movable seat is away from the fixed seat.
- the invention also extends to a fuel injector comprising an actuator and a nozzle made as previously described, the actuator being an electromagnet comprising a fixed coil and a movable magnetic armature directly attached to the piston.
- FIG. 1 is an overview of an injector according to the invention.
- FIG. 2 is a diagram of the nozzle of the injector of FIG. 1.
- FIGS. 3, 4 and 5 are identical to FIG. 2 and illustrate various operating phases of the injector nozzle.
- a fuel injector 10 shown in FIG. 1 is described
- the injector 10 extends along a main axis XI, and comprises an actuator assembly 12, drawn at the top of the figure, and a nozzle assembly 14, drawn below.
- the actuator assembly 12 comprises a substantially cylindrical body 16 extending from an injector head 18 to a lower transverse face 20 and, in a bore 22 provided for this purpose, the body 16 encloses an electromagnet 24 comprising a coil 26 fixed in the body 16 and a movable magnetic armature 28 along the main axis XI.
- the nozzle assembly 14 also comprises a body 30 arranged in axial extension of the actuator body 16 and whose peripheral wall 32 defines an internal space V.
- the nozzle body 30 extends axially in a cylindrical portion from an upper face. 34 transmits in sealed surface contact with the lower face 20 of the injector body, to a portion of smaller section ending in a pointed end 36 provided with injection holes 38 extending through the peripheral wall 32 from an inlet on the inner face 40 to an outlet on the outer face 42.
- the nozzle body 30 comprises a fuel inlet 44, said orifice 44 being arranged in the upper face 34 and at the other end of the body 30, the inner face 40 of the peripheral wall is provided, just above the entries of the injection holes 38, with a fixed valve seat 46.
- a movable valve member 48 also referred to as a needle by professionals, is slidably arranged along the main axis XI.
- the mobile member 48 is telescopic comprising mainly a cylindrical piston 50 and a shutter member 52 arranged sliding relative to each other.
- the piston 50 emerges by a bore 54 of the upper face 34 of the nozzle body, this emerging part out of the nozzle body being integral with the magnetic armature 28 and, on the other hand on the opposite side, on the pointed end 36, the shutter member is provided with a movable seat of valve 56 cooperating with the fixed seat 46.
- the movable valve member 48 moves axially between a closed position PF in which the movable valve seat 56 is in sealing contact against the fixed valve seat 46 along a circular line of effective diameter DE and an open position PO in which the two seats are distant from each other.
- PF closed position
- PO open position
- the nozzle body 30 forms a small volume known to those skilled in the art as the bag S in which open the injection holes 38.
- the actuator assembly 12 and the nozzle assembly 14 are secured to one another by an injector nut 58 which, threaded around the nozzle body 30 and resting on an outer shoulder, is screwed tightly onto the body. actuator 16.
- the injector 10 further comprises a high pressure channel 60 extending into the actuator body 16 from an inlet mouth into the lower face 20 where it communicates with the fuel inlet port 44 in the body. nozzle.
- the fuel F enters the interior space V the nozzle body and occupies all the available volume of said space V.
- the nozzle assembly 14 is now described in more detail with reference to FIG. 2 and following.
- the piston 50 of the movable valve member 48 is a cylindrical piece comprising a first thin cylinder 62 of outside diameter equal to the effective diameter DE and, below in the arbitrary direction of the figure, a second cylinder 64 of larger external diameter, the first and second cylinders 62, 64 joining in a transverse shoulder 66.
- the second cylinder 64 of the piston is provided with a bore 68 opening into the lower face limiting the lower end to a bevelled annular surface forming sealing lip 70. From this lip 70, the bore 68 extends axially in the second cylinder 64 in a first section 72 of diameter D72 greater than the effective diameter DE and then in a second section 74 of diameter equal to the effective diameter DE.
- the two sections of the bore 72, 74 are connected along an inner shoulder of which the second section 74 extends to a bottom face 76 from which a return channel 78 which extends axially in the first cylinder 72 to open into the emerging part of the body nozzle.
- the shutter member 52 of the movable valve member 48 comprises three coaxial cylindrical parts, the central portion of which is a transverse disc flange 80, sometimes referred to by its English name "boost flange", whose outer diameter is slidably adjusted to the face internal 40 of the body 30. From the center of the upper face 82 of the flange 80 extends a cylindrical shaft 84 of diameter equal to the effective diameter DE, said cylindrical shaft 84 extending firstly through the first section 72 of the boring the piston and then engaging slidably fitted in the second section 74 of the piston bore.
- a pointed cylindrical shaft 88 of diameter D88 greater than the effective diameter DE From the center of the lower face 86 of the flange 80 extends a pointed cylindrical shaft 88 of diameter D88 greater than the effective diameter DE, said pointed cylindrical shaft 88 being provided at its pointed end with the movable valve seat 56 cooperating with the fixed seat. 46 valve of the nozzle body 30.
- the flange 80 is provided on its upper face 82 with an annular sealing surface 90 cooperating with the sealing lip 70 of the piston and with two restricted orifices passing through the flange 80 between its upper face 82 and its lower face 86.
- the first restricted orifice 94 is arranged outside the annular sealing surface 90, that is to say between the annular surface 86 and the peripheral edge of the flange, while the second restricted orifice 96 is at the outside. inside the annular sealing surface 90.
- the flange 80 separates the interior space V from the nozzle body into an upstream space VI situated above the collar 80, on the side of the upper face 82 and the fuel inlet port 44 in the nozzle body and, a downstream space V2 located below the collar 80, on the lower face side 86 and the holes injection 38 opening in the bag S.
- the restricted orifices 94, 96 thus create fluid communications between the upstream VI and downstream V2 spaces.
- the cylindrical shaft 88 of diameter DE passes through the first section 72 which defines a annular chamber C1 in which opens the second restricted orifice 94 establishing a fluid communication with the downstream space V2.
- bottom face 76 of the second bore of the piston and the end of the cylindrical shaft 84 define a return chamber C2 in which is compressed a spring 92 which tends to move the two parts 50, 52, one of them. on the other and lengthen the movable valve member 48.
- a docking means 98 shown diagrammatically in the figure by two annular protuberances complementary to each other and limiting said elongation of the movable valve member 48.
- the first cylinder 62 of the piston is axially guided in the bore 54 of the upper face of the nozzle body.
- the bore 54 has a diameter D54 slightly greater than the effective diameter DE of the piston and an independent annular guide 100 fitted around the first cylinder 62 guarantees the seal.
- the annular guide 100 has an inner diameter equal to the effective diameter DE and is held pressed against the nozzle body 30 by a second spring 102 compressed between the annular guide 100 and the shoulder 66 of the piston.
- the second spring 102 therefore permanently urges the piston downwardly from the figure and plates the annular guide 100 against the top of the nozzle body.
- the face of the guide 100 in contact with the nozzle body 30 is beveled and forms another sealing lip.
- the diameters and the games are represented exaggeratedly different.
- the annular guide 100 is integrated in a top guide 104 comprising the upper transverse face 34 of the nozzle body, face provided with the fuel inlet orifice 44, from the center of which extends the annular guide 100.
- Said top guide 104 is held in place compressed between the nozzle body 30 and the actuator body 16 by the injector nut 58.
- Said other spring 102 is then compressed between the top guide 104 and the shoulder 66 of the piston.
- the first cylinder 62 of the piston is slidable in the annular guide 100 and the cylindrical shaft 84 is slid into the second section 74 of the bore in the piston.
- the skilled person will then understand that these sliding adjustments of male cylinders and females requires a set of operating J of a few microns, which does not prevent writing that all male and female cylinders have a diameter equal to the effective diameter OF said diameter being the nominal diameter.
- the injector 10 is arranged within a common rail type fuel injection equipment supplying fuel with several injectors. By the inlet mouth of the injector therefore enters pressurized fuel F and, in a contemporary diesel injection equipment the
- Diesel fuel pressurization can reach 2000 or 3000 bar. To illustrate this operation it is arbitrarily chosen that the fuel pressure at the inlet of the injector is 2500 bars.
- the fuel F enters the nozzle body 30 and occupies all the internal space V available.
- ⁇ electromagnet 24 is not energized, the second spring 102 pushes the piston 50 to the shutter member 52 and the shutter member 52 is itself pushed by the first spring 92 in the closed position PF, that is to say that the sealing lip 70 of the piston is in sealing contact against the annular surface 90 arranged on the upper face of the collar and the movable valve seat 56 is in leaktight contact against the fixed seat 46 along the circular line of effective diameter DE.
- the bag S is isolated from the volume V2.
- the annular chamber C1 is in communication only with the downstream space V2 via the second restricted orifice 96.
- the fuel F entering the upstream space VI via the inlet port 44 passes into the downstream space V2 via the first restricted orifice 94 and then back into the annular chamber C1 via the second restricted orifice 96.
- the fuel passage F through the restricted orifices allows the filling of the three spaces VI, V2, C1 with fuel F at high pressure. A slight pressure difference may exist between these three spaces.
- the pressure in the downstream space V2 may be only 2200 bar and the pressure in the bag S of 2100 bar.
- the pressure in the annular chamber C1 is substantially equal to that in the space downstream V2 and, the return chamber C2 is permanently in communication with the low pressure, no particular pressure prevails.
- electromagnet 24 begins to be energized, magnetic armature 28 is attracted by the magnetic field M generated by coil 26 and, driven by the magnetic armature, piston 50 has begun to raise.
- the second spring 102 compresses as the first spring 92 expands, the forces of the two springs partially compensating for each other, and the electromagnet 24 then only has to overcome the difference between the spring forces.
- the first spring 92 holds the shutter member 52 in the closed position PF while the docking means 98 of the piston 50 and the shutter member 52 is just actuated so that the movable member 48 can not further elongate.
- the annular chamber C1 is in fluid communication with the upstream space VI and pressurized fuel F can pass from the upstream space VI at the downstream space V2 via the two restricted orifices 94, 96, which contributes to balancing the pressures in the upstream VI and downstream V2 spaces.
- a third phase illustrated in FIG. 5 the power supply of the electromagnet 24 is maintained and the piston 50 continues to rise.
- the piston 50 drives the shutter member 52 so that the valve seat 46, 56, opens and allows fuel F under pressure to be injected via the injection holes 38
- the pressure in the bag S then increases and contributes to the opening force of the shutter member 52.
- the flow of fuel F passing through the first and second restricted orifices 94, 96 creates a slight differential pressure, the pressure in the upstream space VI being slightly greater than the pressure in the downstream space V2 so as to generate a force which opposes the force of opening the pressure in the bag S.
- the shutter member 52 thus remains hydraulically balanced and ,
- ⁇ electromagnet has only a small effort to provide to continue the opening of the shutter member.
- the pressure in the downstream space V2 is about 2400 bars and the pressure in the bag S is about 2300 bars.
- the pressure in the annular chamber C1 is equal to that in the upstream space VI and, the return chamber C2 is still in communication with the low pressure, no particular pressure prevails.
- the length of the first spring 92 does not vary since in the second phase described above the docking means 98 is actuated and the solenoid 24 has to overcome only the compression force of the second spring 102.
- a fourth closing phase the supply of ⁇ electromagnet is interrupted and the piston 50, under the influence of the second spring 102, descends in sealing abutment against the upper face of the collar.
- the pressurized fuel F can no longer pass from the upstream space VI to the downstream space V2 than through the first restricted orifice 94.
- the continuous injection and the pressurized fuel F can no longer move from the upstream space VI to the downstream space V2 that the first restricted orifice 94, a large pressure differential is created, the upstream pressure is the most important. important. This pressure difference causes the shutter member 52 towards the closure PF of the valve seat and stopping the injection.
- the pressure in the downstream space V2 may be only 2200 bars and the pressure in the bag S of 2100 bars.
- the pressure in the annular chamber C1 is substantially equal to that in the downstream space V2 and, the return chamber C2 is permanently in communication with the low pressure, no particular pressure prevails.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1560122A FR3042822B1 (fr) | 2015-10-23 | 2015-10-23 | Injecteur de carburant |
| PCT/EP2016/074983 WO2017067930A1 (fr) | 2015-10-23 | 2016-10-18 | Injecteur de carburant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3365548A1 true EP3365548A1 (fr) | 2018-08-29 |
| EP3365548B1 EP3365548B1 (fr) | 2020-12-09 |
Family
ID=54848795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16787766.1A Active EP3365548B1 (fr) | 2015-10-23 | 2016-10-18 | Injecteur de carburant |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10502170B2 (fr) |
| EP (1) | EP3365548B1 (fr) |
| CN (1) | CN108138717B (fr) |
| FR (1) | FR3042822B1 (fr) |
| WO (1) | WO2017067930A1 (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2674608B1 (fr) * | 2012-06-13 | 2015-08-12 | Delphi International Operations Luxembourg S.à r.l. | Injecteur à carburant |
| GB2567191B (en) * | 2017-10-05 | 2020-04-29 | Delphi Tech Ip Ltd | Fuel injector |
| US11035332B2 (en) * | 2017-12-19 | 2021-06-15 | Caterpillar Inc. | Fuel injector having dual solenoid control valves |
| GB2574841A (en) * | 2018-06-19 | 2019-12-25 | Rklab Ag | Injector apparatus |
| JP7143715B2 (ja) * | 2018-10-05 | 2022-09-29 | 株式会社デンソー | 燃料噴射弁およびエンジンシステム |
| CN109720604B (zh) * | 2019-01-31 | 2024-05-24 | 北京星际荣耀空间科技股份有限公司 | 介质供应结构、姿轨控动力系统及火箭 |
| CN112879177B (zh) * | 2021-02-05 | 2022-07-08 | 中国空气动力研究与发展中心空天技术研究所 | 一种高超声速机械传动式气液两用脉冲喷射装置及方法 |
| CN120007466B (zh) * | 2025-02-12 | 2025-08-19 | 安徽星河动力装备科技有限公司 | 针栓喷注器及火箭动力装置 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4306680A (en) * | 1980-05-12 | 1981-12-22 | General Motors Corporation | Compression operated injector |
| DE4142940C2 (de) * | 1991-12-24 | 1994-01-27 | Bosch Gmbh Robert | Elektrisch gesteuerte Pumpedüse |
| GB9404260D0 (en) * | 1994-03-05 | 1994-04-20 | Lucas Ind Plc | Fuel injection nozzles |
| JP3938970B2 (ja) * | 1997-04-17 | 2007-06-27 | 株式会社日本自動車部品総合研究所 | 蓄圧式燃料噴射装置 |
| DE19954802A1 (de) | 1999-11-13 | 2001-05-17 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| US7051993B2 (en) | 2004-03-10 | 2006-05-30 | Eaton Corporation | Solenoid operated valve and method of making same |
| CN100368679C (zh) * | 2004-04-30 | 2008-02-13 | 株式会社电装 | 具有用于控制喷嘴喷针的结构的喷射器 |
| JP2011190798A (ja) * | 2010-02-17 | 2011-09-29 | Denso Corp | 燃料噴射弁 |
| DE102011083260A1 (de) * | 2010-09-29 | 2012-03-29 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für Brennkraftmaschinen |
-
2015
- 2015-10-23 FR FR1560122A patent/FR3042822B1/fr not_active Expired - Fee Related
-
2016
- 2016-10-18 EP EP16787766.1A patent/EP3365548B1/fr active Active
- 2016-10-18 WO PCT/EP2016/074983 patent/WO2017067930A1/fr not_active Ceased
- 2016-10-18 US US15/770,394 patent/US10502170B2/en active Active
- 2016-10-18 CN CN201680061635.XA patent/CN108138717B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3365548B1 (fr) | 2020-12-09 |
| US20180313316A1 (en) | 2018-11-01 |
| CN108138717A (zh) | 2018-06-08 |
| WO2017067930A1 (fr) | 2017-04-27 |
| CN108138717B (zh) | 2020-03-13 |
| US10502170B2 (en) | 2019-12-10 |
| FR3042822B1 (fr) | 2017-12-22 |
| FR3042822A1 (fr) | 2017-04-28 |
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