EP3060789B1 - Injecteur de carburant - Google Patents

Injecteur de carburant Download PDF

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Publication number
EP3060789B1
EP3060789B1 EP14777325.3A EP14777325A EP3060789B1 EP 3060789 B1 EP3060789 B1 EP 3060789B1 EP 14777325 A EP14777325 A EP 14777325A EP 3060789 B1 EP3060789 B1 EP 3060789B1
Authority
EP
European Patent Office
Prior art keywords
fuel injector
guide element
injector according
guide
weakening
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
EP14777325.3A
Other languages
German (de)
English (en)
Other versions
EP3060789A1 (fr
Inventor
Henning Kreschel
Stefan Haug
Angel Susvilla
Alexander Madlener
Andreas Rettich
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3060789A1 publication Critical patent/EP3060789A1/fr
Application granted granted Critical
Publication of EP3060789B1 publication Critical patent/EP3060789B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • F02M63/0042—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing combined with valve seats of the lift 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way valves
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0073—Pressure balanced valves
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F02M63/008—Hollow valve members, e.g. members internally guided
    • 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
    • F02M2200/02—Fuel-injection apparatus having means for reducing wear
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/003—Valve inserts containing control chamber and valve piston

Definitions

  • the invention relates to a fuel injector according to the preamble of claim 1.
  • Such a fuel injector is from the DE 10 2008 003 348 A1 the applicant known.
  • the fuel injector serving as a component of a common-rail injection system in self-igniting internal combustion engines has a nozzle needle whose end facing away from the injection openings dips into a valve piece in the valve housing.
  • a control chamber is formed, which is relieved via a drain hole in a low pressure region of the fuel injector.
  • the movement of the nozzle needle for opening or closing the injection openings is controlled in a known manner.
  • a valve element which is arranged on the low-pressure side of the fuel injector, and which closes the drain hole in a lowered position or releases it in a raised position.
  • the valve element is integrally formed in the known fuel injector as an extension of a substantially disc-shaped or sleeve-shaped magnet armature, which cooperates with a magnetic coil, which causes a lifting of the valve element from its closing the drain hole position when energized.
  • the magnet armature is subjected to a force by a compression spring in the direction of the closed position of the valve element to ensure that no fuel can flow out of the control chamber when the solenoid is de-energized or the nozzle needle is in its position closing the injection openings.
  • the armature is axially guided in a pin-shaped guide element, which passes through a partially formed in the magnet armature through hole.
  • the invention has the object, a fuel injector according to the preamble of claim 1 such that when the occurrence of shear forces on the guide element or the cooperating with the guide element components increased wear is avoided, at the same time no or only a relatively small increase in friction between the components should occur to ensure a slight axial movement of the valve member.
  • This object is achieved in a fuel injector with the features of claim 1, characterized in that axially spaced from the first weakening region at the guide region of the guide element at least a second weakened region is arranged, in which the cross section of the guide element is reduced.
  • the axial distance between the two weakened areas based on the length of the guide element outside the guide section in the valve element between 50% and 80% of said length is. This makes it possible even with a relatively small deflection or a relatively small tilt angle of an intermediate portion of the guide element that relatively large transverse movements of the valve element can be realized or due to the relatively large transverse movement, the frictional force in the guide of the valve element is relatively low.
  • the intermediate portion of the guide element between the two weakened areas is not guided radially. This is understood to mean that, irrespective of the deflection of the guide element, the deflected intermediate section is not in contact with a component, so that, in particular, no undefined forces can act on the guide element.
  • the guide element has a flat end face on the side facing the housing element.
  • a particularly simple and accurate production of the guide element can be achieved if the guide element is cylindrical and has a constant cross-section, with the exception of the at least two weakened areas.
  • the at least two weakened areas in the guide element can be formed in a particularly simple manner if the weakened areas are designed in the form of radially encircling annular grooves. Moreover, this has the additional advantage that, regardless of the angular position of the guide element in all directions, a movement or tilting of the guide element is made possible.
  • the weakened areas are formed in the form of notches or notches.
  • asymmetrical properties with regard to the bending characteristic of the guide element can be achieved, that is to say that the guide element can be deflected particularly easily in one direction, whereas deflection in another direction is made more difficult.
  • it may be provided to arrange the guide element rotationally fixed.
  • the weakened areas are rounded or provided with a radius.
  • the invention is preferably used in fuel injectors in which the pressure in the control chamber is at least 2000 bar. At such high control pressures or system pressures, such a high axial compressive force on the Guide element generates that the effects mentioned in terms of increased friction or wear without the inventive training are particularly significant or pronounced.
  • the Indian Fig. 1 Sectionally illustrated fuel injector 10 is part of a common rail injection system for injecting fuel in a combustion chamber, not shown, a self-igniting internal combustion engine.
  • the force pressure provided by the fuel injection system is more than 2000 bar.
  • the fuel injector 10 has an injector housing 11, which is penetrated by a longitudinal bore 12, wherein the longitudinal bore 12 has bore portions with different diameters.
  • a valve member 15 At a shoulder 13 of the longitudinal bore 12 is axially a valve member 15 with a shoulder 16.
  • the valve member 15 is disposed on the opposite side of the paragraph 13 in operative connection with a clamping screw 17 whose outer thread cooperates with a corresponding internal thread in the longitudinal bore 12.
  • the valve piece 15 has on the clamping screw 17 side facing away from a blind hole 18 into which an axial end portion 19 of a nozzle needle 20 formed as an injection member is immersed.
  • the blind hole 18 leads the end portion 19 radially and also allows axial movement of the nozzle needle 20 in the direction of the longitudinal axis 22 of the nozzle needle 20.
  • lowered position of the nozzle needle 15 closes this at least one, in practice, however, a plurality of injection openings in the injector housing 11 (not shown) to prevent the injection of fuel from a formed in the injector 11 in the nozzle needle 20 high pressure chamber 25.
  • the at least one injection opening in the injector housing 11 is released at a raised position of the nozzle needle 20, not shown in the figures, so that fuel is discharged from the high-pressure chamber 25 into the combustion chamber of the internal combustion engine or injected.
  • the high-pressure chamber 25 is connected hydraulically via a connection 26, which is shown only symbolically, in the injector housing 11 and a fuel supply line 27 to a fuel reservoir (rail) 28, which supplies the high-pressure chamber 25 with the fuel at system pressure.
  • a variable volume control chamber 35 which is connected via a near the bottom of the blind hole 18 formed connecting bore 36 with an inlet throttle 37 hydraulically connected to the high-pressure chamber 25, so that Fuel from the high-pressure chamber 25 can flow into the control chamber 35.
  • the control chamber 35 is used, as is known and therefore not explained in more detail, the control of the movement of the nozzle needle 20 for releasing or closing the at least one injection opening in the injector 11 via a control of the fuel pressure in the control chamber 35.
  • the drain hole 30 is at least indirectly can be closed by means of a valve element 40 to prevent outflow of fuel from the control chamber 35 via the drain hole 30 into a low-pressure chamber 42 of the injector housing 11.
  • the low-pressure chamber 42 is hydraulically connected via a further connection 43 in the injector housing 11 and a return line 44, for example with a return tank (tank) 45.
  • the valve element 40 is part of a magnet armature and has a sleeve-shaped first region 46, to which on the side facing away from the valve piece 15, a disc-shaped or annular anchor region 48 connects.
  • the armature region 48 or the valve element 40 cooperates with a magnetic coil 50 embedded in an annular magnetic core 49, which draws the valve element 40 in the direction of the magnetic core 49 when energized.
  • the magnet core 49 abuts axially on a closure plate 51 of the injector housing 11 on the side facing away from the valve element 40.
  • the magnetic core 49 has a through hole 53, in the region of which a disc-shaped support plate 55 bears in a stationary manner against the closure plate 51 axially.
  • a compression spring 56 which is also disposed within the through hole 53, axially supported on the one hand against the support plate 55, and on the other hand against the facing end face of the anchor portion 48 of the valve element 40, such that the compression spring 56, the valve member 40 in the in the Fig. 1 shown lowered position in which a sealing edge 57 of the sleeve-shaped portion 46 of the valve member 40 abuts a conical mating surface 58 of the valve member 15 to form a sealing seat to prevent leakage of fuel from the drain hole 30 in the low-pressure space 42.
  • the compression spring 56 surrounds the guide member 65 at a radial distance.
  • the valve element 40 is penetrated by a through hole 60 of constant diameter.
  • a guide portion 61 of a pin-shaped guide member 65 is immersed on the side facing away from the valve piece 15.
  • a pin-shaped extension 63 of the valve member 15 preferably emerges with radial play, in which a flattening 64 is formed for the outflow of fuel in the direction of the sealing edge 57.
  • the outer diameter of the guide element 65 is matched to the bore diameter of the through hole 60, on the one hand at least virtually leak-free radial guidance of the valve member 40 on the guide portion 61 is enabled, and on the other hand, the axial mobility of the valve member 40 in the direction of the double arrow 66 (parallel to the longitudinal axis 22) is ensured with relatively low friction.
  • the guide member 65 On the valve piece 15 facing end face 67 of the guide member 65 always acts on the hydraulic pressure, which acts on the end face 67 via the control chamber 35 and the return line 30. This, acting in the direction of the support plate 55 axial force acts on the in the Fig. 1 shown planar second end face 68 of the guide member 65 on the support plate 55 and thus the closure plate 51 of the injector 11. It is essential to the invention that the guide member 65 has two axially spaced weakening regions 71, 72. The first weakening region 71 is located immediately after the guide section 61 of the guide element 65 axially still within the valve element 40. The second weakening section 72 is located near the support plate 55.
  • the two weakened areas 71, 72 thereby form the guide element 65 into a total of three sections divided:
  • the guide portion 61 which is guided with a relatively tight fit within the through hole 60 of the valve member 40
  • the average distance a between the two weakening regions 71, 72 is between 50% and 80% of the length A of the guide element 65 without its guide section 61.
  • the two weakening areas 71, 72 are formed in the illustrated embodiment by a respective radially circumferential annular groove 75, which is preferably provided with a rounding or a radius 76.
  • a respective radially circumferential annular groove 75 which is preferably provided with a rounding or a radius 76.
  • the cross-section in the region of the weakening regions 71, 72 (whose cross-section is in each case preferably identical in size) is reduced or formed by straight-cut, milled or the like.
  • Fig. 2 is opposite Fig. 1 modified guide element 65a shown, in which the support portion 74a on the support plate 55 facing side is crowned or formed with a rounding 77, so that the guide member 65a punctiform bears against the support plate 55.
  • transverse forces F may occur, which in the illustration of Fig. 3 act in the drawing plane from left to right.
  • These transverse forces F cause that on the one hand the guide portion 61 is guided at least almost without an additional transverse force within the through hole 53 of the valve member 40, and on the other hand, the support portion 74 due to the pressure prevailing in the control chamber 35 hydraulic pressure over the entire surface or in a vertical orientation on the support plate 55 is present.
  • the transverse forces F thus act as deformation forces on the guide element 65, 65a and, in particular, cause no increased wear or increased friction between the through-bore 60 and the guide section 61 with respect to non-existing transverse forces F.
  • the fuel injector 10 described so far can be modified or modified in many ways, without departing from the spirit of the invention.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (12)

  1. Injecteur de carburant (10), avec un carter d'injecteur (11), dans lequel un élément d'injection (20) est disposé de façon à pouvoir être déplacé dans le sens de la longueur le long d'un axe longitudinal (22), avec une chambre de commande (35) reliée de façon hydraulique à une chambre de haute pression (25) du carter d'injecteur (11) pouvant être déchargé de façon hydraulique via un alésage d'évacuation (30) en direction d'une chambre de basse pression (42) du carter d'injecteur (11), le débit passant à travers l'alésage d'évacuation (30) pouvant être commandé par des moyens de pression à l'aide d'un élément de soupape (40), l'élément de soupape (40) étant disposé de façon à pouvoir être déplacé dans le plan axial sur un élément de guidage (65 ; 65a) de préférence en forme de barre, ledit élément de guidage (65 ; 65a) plongeant dans un alésage (60) de l'élément de soupape (40) et appuyant, sur le côté opposé à l'élément de soupape (40), contre un élément de carter (55) fixe sur place et l'élément de guidage (65 ; 65a) comportant, dans une zone située entre une section de guidage (61) de l'élément de guidage (65) dans l'élément de soupape (40) et l'élément de carter (55) fixe sur place, une première zone de rupture (71) dans laquelle la section transversale de l'élément de guidage (65 ; 65a) est réduite ;
    caractérisé en ce qu'à une certaine distance axiale (a) de la première zone de rupture (71), au niveau de l'élément de guidage (65 ; 65a), au moins une deuxième zone de rupture (72) est réalisée dans laquelle la section transversale de l'élément de guidage (65 ; 65a) est réduite.
  2. Injecteur de carburant selon la revendication 1, caractérisé en ce que la distance axiale (a) entre les deux zones de rupture (71, 72) est comprise entre 50 % et 80 % de la longueur (A), par rapport à la longueur (A) de l'élément de guidage (65 ; 65a) à l'extérieur de la section de guidage (61).
  3. Injecteur de carburant selon la revendication 1 ou 2, caractérisé en ce qu'au moins une section intermédiaire (73) disposée entre les au moins deux zones de rupture (71, 72) n'est pas guidée dans le plan radial.
  4. Injecteur de carburant selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'élément de guidage (65) comporte, sur le côté orienté vers l'élément de carter (55), une surface plane avant (68).
  5. Injecteur de carburant selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'élément de guidage (65 ; 65a) est réalisé de façon cylindrique et comporte, à l'exception des au moins deux zones de rupture (71, 72), une section transversale constante.
  6. Injecteur de carburant selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la taille de la section transversale dans la région des au moins deux zones de rupture (71, 72) est au moins pour l'essentiel identique.
  7. Injecteur de carburant selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les au moins deux zones de rupture (71, 72) sont réalisées sous la forme de rainures annulaires (75) périphériques dans le plan radial.
  8. Injecteur de carburant selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les au moins deux zones de rupture (71, 72) sont réalisées sous la forme de découpes et/ou d'encoches.
  9. Injecteur de carburant selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les au moins deux zones de rupture (71, 72) sont réalisées de façon arrondie et/ou présentent un rayon (76).
  10. Injecteur de carburant selon l'une quelconque des revendications 1 à 9, caractérisé en ce que l'élément de soupape (40) est réalisé sous la forme d'une ancre (48) actionnable à partir d'une bobine d'aimant (50) et que l'élément de guidage (65 ; 65a) est entouré à l'intérieur d'un alésage traversant (53) d'un noyau d'aimant (49) dans le plan radial et à une certaine distance d'un ressort de pression (56) appuyant dans le plan axial entre l'ancre (48) et l'élément de carter (55) fixe sur place.
  11. Injecteur de carburant selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l'alésage (60) est réalisé dans l'élément de soupape (40) sous la forme d'un alésage traversant, de telle sorte qu'au moins pour l'essentiel la pression hydraulique agisse dans l'alésage d'évacuation (30) sur le côté avant (67), plongeant dans l'alésage (60), de l'élément de guidage (65 ; 65a).
  12. Injecteur de carburant selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la pression régnant dans la chambre de commande (35) est supérieure à 2000 bar.
EP14777325.3A 2013-10-23 2014-09-30 Injecteur de carburant Active EP3060789B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310221554 DE102013221554A1 (de) 2013-10-23 2013-10-23 Kraftstoffinjektor
PCT/EP2014/070867 WO2015058929A1 (fr) 2013-10-23 2014-09-30 Injecteur de carburant

Publications (2)

Publication Number Publication Date
EP3060789A1 EP3060789A1 (fr) 2016-08-31
EP3060789B1 true EP3060789B1 (fr) 2017-06-28

Family

ID=51628134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14777325.3A Active EP3060789B1 (fr) 2013-10-23 2014-09-30 Injecteur de carburant

Country Status (4)

Country Link
EP (1) EP3060789B1 (fr)
CN (1) CN105658946B (fr)
DE (1) DE102013221554A1 (fr)
WO (1) WO2015058929A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10472386B2 (en) 2017-02-14 2019-11-12 Enanta Pharmaceuticals, Inc. Bile acid derivatives as FXR agonists and methods of use thereof
CN114165372B (zh) * 2021-12-17 2022-10-14 中国船舶集团有限公司第七一一研究所 谐振式电控喷射器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2573705Y (zh) * 2002-10-14 2003-09-17 成都飞机工业（集团）有限责任公司 一种高压柱塞偶件
DE102005053115A1 (de) * 2005-11-08 2007-05-10 Robert Bosch Gmbh Optimierte Ankergruppenführung für Magnetventile
DE102007027486A1 (de) * 2007-06-14 2008-12-18 Robert Bosch Gmbh Zentrierhilfe für Schaltventile
DE102007047425A1 (de) * 2007-10-04 2009-04-09 Robert Bosch Gmbh Steuerventil für einen Kraftstoffinjektor
DE102008003348A1 (de) * 2008-01-07 2009-07-09 Robert Bosch Gmbh Kraftstoffinjektor
DE102008005535A1 (de) * 2008-01-22 2009-07-23 Robert Bosch Gmbh Kraftstoffinjektor
DE102009029563A1 (de) * 2009-09-18 2011-03-24 Robert Bosch Gmbh Injektor
DE102009045335A1 (de) * 2009-10-05 2011-04-07 Robert Bosch Gmbh Injektor
DE102010001486A1 (de) * 2010-02-02 2011-08-04 Robert Bosch GmbH, 70469 Steuerventilanordnung eines Kraftstoffinjektors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2015058929A1 (fr) 2015-04-30
EP3060789A1 (fr) 2016-08-31
DE102013221554A1 (de) 2015-04-23
CN105658946A (zh) 2016-06-08
CN105658946B (zh) 2020-01-21

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