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EP0460125B1 - Soupape a commande electromagnetique - Google Patents

Soupape a commande electromagnetique Download PDF

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Publication number
EP0460125B1
EP0460125B1 EP90916030A EP90916030A EP0460125B1 EP 0460125 B1 EP0460125 B1 EP 0460125B1 EP 90916030 A EP90916030 A EP 90916030A EP 90916030 A EP90916030 A EP 90916030A EP 0460125 B1 EP0460125 B1 EP 0460125B1
Authority
EP
European Patent Office
Prior art keywords
valve
closing member
process step
seat body
connection part
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.)
Expired - Lifetime
Application number
EP90916030A
Other languages
German (de)
English (en)
Other versions
EP0460125A1 (fr
Inventor
Ferdinand Reiter
Rudolf Babitzka
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 EP0460125A1 publication Critical patent/EP0460125A1/fr
Application granted granted Critical
Publication of EP0460125B1 publication Critical patent/EP0460125B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
    • 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
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the fuel flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/90—Electromagnetically actuated fuel injector having ball and seat type valve

Definitions

  • the invention is based on an electromagnetically actuated valve according to the preamble of patent claim 1.
  • an electromagnetically actuated valve with axial fuel inflow is already known, in which a stop device which limits the opening travel of the valve closing member is provided for which, however, depending on the inclination or deviation of the valve needle consisting of valve closing member, rod and armature, leads to different attachment points and thus to different opening strokes of the valve closing member.
  • a stop device which limits the opening travel of the valve closing member is provided for which, however, depending on the inclination or deviation of the valve needle consisting of valve closing member, rod and armature, leads to different attachment points and thus to different opening strokes of the valve closing member.
  • the electromagnetically actuated valve according to the invention with the characterizing features of claim 1 has the advantage that the opening stroke of the valve closing member is not influenced by an inclined position of the valve needle. In addition, it does not apply a possibly required, non-magnetisable stop disc that creates a residual air gap. The large axial distance between the guide on the valve closing member and the armature guide also largely prevents the valve needle from tilting. It is also advantageous that the stop rod is connected to a displaceably mounted displacement sleeve, so that a simple and quick assembly of the stop rod as well as a problem-free fuel flow through the displacement sleeve is ensured.
  • valve closing member has a convex surface in the region touched by the stop rod in the open position of the valve, in order to ensure an exact stop location and thus a constant opening stroke of the valve closing member even in the case of larger oblique positions of the valve needle.
  • the stop rod has a convex surface on its end side facing the valve closing member.
  • the sliding sleeve has embossments which run in the axial direction and point radially inwards, form the contact surfaces between the sliding sleeve and the stop rod and thus enable the fixed connection of the two parts, be it by welding, soldering or by pressing.
  • a sliding sleeve designed in this way permits problem-free fuel flow despite its low manufacturing outlay.
  • a bearing bush which is pressed into the core downstream of the sliding sleeve and has openings in the flow direction for the stop rod and the fuel, as a system for the return spring acting on the valve closing member. This ensures that the spring force of the return spring is set independently of the insertion or screwing depth of the sliding sleeve into the core.
  • valve needle consisting of valve closing member, connecting tube and armature is inserted into a connecting part of the valve.
  • a valve seat body having the valve seat is introduced into a holding bore of the connecting part which is concentric with the longitudinal axis of the valve and is introduced onto the valve closing member, and the axial play of the valve needle consisting of the preselected sum of valve needle stroke and residual air gap is determined by the axial position of the valve seat body in the holding bore by the valve seat body is tight with the connecting part is connected.
  • the setting of the stroke of the valve closing member and thus also the amount of fuel sprayed off and the force of the return spring is carried out in a subsequent process step by screwing in or pressing in the displacement sleeve connected to the stop rod into a flow bore of the core, so that overall a simple and exact setting of Residual air gap and valve needle lift results.
  • valve needle consisting of valve closing member, connecting pipe and armature is inserted into a connecting part of the valve and in a next process step the residual air gap is determined by the screwing-in or pressing-in depth of a sliding sleeve connected to the stop rod into a flow bore of the core.
  • valve seat body having the valve seat is inserted into a holding bore of the connecting part, the axial positioning of the valve seat body serving to adjust the valve needle stroke and thus also the amount of fuel sprayed off and the force of the return spring, and in a final process step the valve seat body with the connecting part is tightly connected.
  • a bearing bush serves as a system for the return spring, it is particularly advantageous for the manufacture of a valve according to the invention if, in a first method step, a valve needle consisting of valve closing member, connecting tube and armature is inserted into a connecting part of the valve. In a next method step, a valve seat body having the valve seat is inserted into a holding bore of the connecting part, and the axial play of the valve needle consisting of the preselected sum of the valve needle stroke and residual air gap is determined by the axial position of the valve seat body in the holding bore and then the valve seat body is tightly connected to the connecting part. The force of the return spring is set in a subsequent process step by pressing the bearing bush into a flow hole in the core.
  • the stroke of the valve closing member is adjusted by the screwing-in or pressing-in depth of the sliding sleeve connected to the stop rod into the flow bore.
  • Another advantageous method for producing a valve according to the invention with a bearing bush serving as a system for the return spring can be described in that, in a first process step, the bearing bush first into a flow bore of the core and then a valve needle consisting of valve closing member, connecting pipe and armature into a connecting part of the valve is inserted. In a next process step, the residual air gap is determined by the screwing-in or press-in depth of the sliding sleeve connected to the stop rod into the flow bore. In a subsequent method step, a valve seat body having the valve seat is inserted into a holding bore of the connecting part, the axial positioning of the valve seat body serving to adjust the valve needle stroke, and then the valve seat body is tightly connected to the connecting part. The setting of the force of the return spring takes place in a further process step by changing the press-in depth of the bearing bush in the flow bore.
  • FIG. 1 shows a first embodiment of an inventive configured valve
  • Figure 2 shows an enlarged section through the sliding sleeve along the line II-II in Figure 1
  • Figure 3 shows a second embodiment of the valve designed according to the invention.
  • the electromagnetically actuated valve shown in FIG. 1, for example, in the form of an injection valve for fuel as an aggregate of a fuel injection system of a mixture-compressing spark-ignition internal combustion engine has a tubular metal core 1 made of ferromagnetic material, on the lower core end 2 of which a magnet coil 3 is arranged. At the upper end of the core 1, a fuel inlet port 5 is formed. Subsequent to the core end 2, a tubular intermediate part 6 is connected to the core 1 concentrically with the valve longitudinal axis 4, for example by soldering or welding.
  • the intermediate part 6 is made, for example, of non-magnetic sheet metal, which is deep-drawn and has a first connecting section 60, which extends coaxially to the valve longitudinal axis and with which it completely surrounds the core end 2 and is tightly connected to it.
  • the connecting section 60 has on its inner bore facing away from the fuel inlet connector 5 a sliding bore 67 provided with a smaller diameter, into which a cylindrical armature 12 projects and through which the armature 12 is guided.
  • the axial extension of the sliding bore 67 is small compared to the axial length of the armature 12, it is approximately 1/15 the length of the armature.
  • a collar 61 which extends radially outward from the first connecting section 60, leads to a second connecting section 62 of the intermediate part 6, which extends coaxially to the longitudinal valve axis 4 and partially extends beyond a tubular cylindrical connecting part 50 in the axial direction and is tight with it is connected, for example by soldering or welding.
  • the diameter of the second connecting section 62 is thus larger than the diameter of the first connecting section 60, so that in the assembled state the tubular connecting part 50 rests with an end face 70 on the collar 61.
  • the first connecting section 60 encompasses a holding shoulder 81 of the core end 2, which has a smaller outer diameter than the core 1, and the second connecting section 62 surrounds a holding shoulder 82 of the connecting part 50, which is also formed with a smaller outer diameter than in the adjacent area
  • the connecting part 50 made of ferromagnetic material has a holding bore 75 facing away from the end face 70, into which a valve seat body 8 is inserted in a sealed manner, for example by pressing in, screwing, welding or soldering.
  • the holding bore 75 merges into a transition bore 76 which extends to the end face 70.
  • the metal valve seat body 8 has a fixed valve seat 9 facing the core end 2.
  • the series of core 1, intermediate part 6, connecting part 50 and valve seat body 8 represents a rigid metal unit.
  • a valve closing member 14 is connected, which may have the shape of a sphere, a hemisphere or another shape, for example.
  • the connection between the connecting tube 36 and armature 12 and the valve closing member 14 and connecting tube 36 is advantageously made by welding or soldering.
  • a stop rod 40 projecting into the connecting tube 36 and in the open position of the valve touching the valve closing member 14, which has an arbitrary, for example circular, cross-sectional shape. is firmly connected to a sliding sleeve 22.
  • the sliding sleeve 22 has, as shown enlarged in FIG. 2 as an exemplary embodiment, axially directed, radially inwardly directed impressions 25.
  • These three impressions 25, for example, shown form contact surfaces between the sliding sleeve 22 and the stop rod 40, so that on the one hand a simple fixed connection of the two parts is made possible by welding, soldering or pressing, but on the other hand a problem-free fuel flow through the Sliding sleeve 22 is guaranteed.
  • the stop rod 40 is made of a non-magnetizable material, its surface, in particular on its surface facing the valve closing member 14, is hardened.
  • the setting of the spring force of the return spring 18 results from the axial positioning of the sliding sleeve 22 screwed or pressed into the flow bore 21.
  • At least a part of the core 1 and the magnet coil 3 are enclosed in their entire axial length by a plastic sheath 24, which also encloses at least a part of the intermediate part 6 and the connecting tube 36.
  • the plastic jacket 24 can be achieved by pouring or extrusion coating with plastic.
  • an electrical connector 26 integrally formed, via which the electrical contact of the solenoid 3 and thus the excitation takes place.
  • the magnet coil 3 is surrounded by at least one guide element 28 serving as a ferromagnetic element for guiding the magnetic field lines, which is made of ferromagnetic material and extends in the axial direction over the entire length of the magnet coil 3 and at least partially surrounds the magnet coil 3 in the circumferential direction.
  • at least one guide element 28 serving as a ferromagnetic element for guiding the magnetic field lines, which is made of ferromagnetic material and extends in the axial direction over the entire length of the magnet coil 3 and at least partially surrounds the magnet coil 3 in the circumferential direction.
  • the guide element 28 is designed in the form of a bracket, with an area 29 which is adapted to the contour of the magnetic coil and which only partially surrounds the magnetic coil 3 in the circumferential direction, and an end portion 31 which extends inwards in the radial direction and which partially encompasses the core 1.
  • 1 shows a valve with a guide element 28.
  • the fuel flows from the fuel inlet nozzle 5 through the armature 12 into an inner channel 38 of the connecting tube 36 and via radial through openings 37 into the transition bore 76 and from there to the valve seat 9, downstream of which at least one spray opening 17 is formed in the valve seat body 8, via which the fuel is formed in an intake manifold or a cylinder of an internal combustion engine is hosed down.
  • FIG 3 a second embodiment of the invention is shown, in which the same and equivalent parts are identified by substantially the same reference numerals as in 1 and 2.
  • a valve closing member 44 has a flat surface 48 in the region touched by a stop rod 45 in the open position of the valve.
  • the surface of the stop rod 45 is curved outwards on its end face facing the valve closing member 44.
  • a bearing bush 46 which is pressed into the flow bore 21 of the core 1 between the displacement sleeve 22 and the restoring spring 18 serves as a system for the return spring 18, which acts on the valve closing member 44 by means of the connecting tube 36.
  • the bearing bush 46 has a concentric with the valve longitudinal axis 4 trained opening for the stop rod 45 and at least one flow opening 47, which serves the fuel flow through the bearing bush 46.
  • the size of the residual air gap and the stroke of the valve closing member 14 influencing the amount of fuel sprayed off must be set as simply and precisely as possible. For this reason, it is advantageous in a first method step to insert a valve needle consisting of valve closing member 14, connecting tube 36 and armature 12 into the connecting part 50 connected to the intermediate part 6 and the core 1 and in a next method step to insert the valve seat body 8 into the holding bore 75 and to determine the axial play of the valve needle consisting of the preselected sum of the valve needle stroke and residual air gap by the axial position of the valve seat body 8 in the holding bore 75. Thereafter, the valve seat body 8 is tightly connected to the connecting part 50. The stroke of the valve closing member 14 and the force of the return spring 18 are adjusted in a subsequent process step by the screwing-in or pressing-in depth of the displacement sleeve 22 connected to the stop rod 40 into the flow bore 21.
  • Another method which is advantageous for the precise and simple setting of the residual air gap, the valve needle stroke and the force of the return spring 18 of a valve designed according to the invention is, in a first method step, to insert a valve needle consisting of valve closing member 14, connecting tube 36 and armature 12 into the one with the intermediate part 6 and insert the connecting part 50 connected to the core 1 and, in a next process step, fix the residual air gap into the flow bore 21 by the screwing-in or pressing-in depth of the sliding sleeve 22 connected to the stop rod 40.
  • the valve seat body 8 is first inserted into the holding bore 75, the axial positioning of the valve seat body 8 serving to adjust the valve needle stroke and thus also the amount of fuel sprayed off and the force of the return spring 18. The valve seat body 8 is then tightly connected to the connecting part 50.
  • the bearing bush 46 serves as a system for the return spring 18, it is advantageous for the assembly of the valve according to the invention, in a first process step, to insert a valve needle consisting of valve closing member 44, connecting tube 36 and armature 12 into the valve needle Introduce the connecting part 50 connected between the intermediate part 6 and the core 1 and, in a next method step, insert the valve seat body 8 into the holding bore 75 and the axial play of the valve needle consisting of the preselected sum of the valve needle stroke and residual air gap due to the axial position of the valve seat body 8 in the holding bore 75 to be determined.
  • valve seat body 8 is tightly connected to the connecting part 50.
  • force of the return spring 18 is set by pressing the bearing bush 46 into the flow bore 21 of the core 1.
  • the setting of the stroke of the valve closing member 44 is carried out in a further process step by the screwing-in or pressing-in depth of the stop rod 45 connected sliding sleeve 22 into the flow bore 21.
  • Another advantageous method for producing a valve according to the invention when using a bearing bush 46 serving as a system for the return spring 18, as shown in FIG. 3, consists in a first step of the process first of all the bearing bush 46 in the flow bore 21 and then a valve closure member 44, Insert the connecting tube 36 and armature 12 existing valve needle into the connecting part 50 connected to the intermediate part 6 and the core 1.
  • the residual air gap is determined by the screwing-in or press-in depth of the sliding sleeve 22 connected to the stop rod 45 into the flow bore 21.
  • the valve seat body 8 is first inserted into the holding bore 75, the axial positioning of the valve seat body 8 serving to adjust the valve needle stroke and thus also the amount of fuel sprayed off.
  • the valve seat body 8 is then tightly connected to the connecting part 50.
  • the setting of the force of the return spring 18 takes place in a further method step by changing the pressing-in depth of the bearing bush 46 into the flow bore 21.
  • the central stop rod 40 or 45 of the valve according to the invention allows a constant opening stroke of the valve closing member 14 or 44 and thus the allocation of an exactly metered amount of fuel, regardless of the inclination of the valve needle.
  • the sliding sleeve 22 connected to the stop rod 40 or 45 enables simple and precise adjustment of the residual air gap and the stroke of the valve closing member 14 or 44 when installed in the flow bore 21.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

Dans des soupapes à commande électromagnétique connues à amenée axiale du carburant, la voie d'ouverture de l'organe de fermeture de la soupape est délimitée par une butée annulaire. Lorsque le pointeau de la soupape est incliné, toutefois, seule une partie de la butée fait contact, de sorte que la quantité injectée est dosée avec une précision insuffisante. Cette nouvelle butée permet d'obtenir une course d'ouverture contrôlée de l'organe de fermeture de la soupape, indépendamment de la position du pointeau de la soupape. La nouvelle tige de butée (40), concentrique par rapport à l'axe longitudinal (4) de la soupape, entre en contact avec l'organe de fermeture (14) de la soupape dans la position d'ouverture de celle-ci et délimite ainsi sa course d'ouverture. La tige de butée (40) est montée au moyen de la douille mobile (22) dans l'alésage d'écoulement (21) du corps (1). Ce type de butée est particulièrement utile pour des soupapes d'injection de carburant.

Claims (10)

  1. Soupape à commande électromagnétique, notamment soupape d'injection de carburant pour installations d'injection de carburant de moteurs à combustion interne à compression de mélange et à allumage par étincelles, avec un noyau tubulaire (1) entouré par une bobine magnétique (3) et dont l'extrémité supérieure revêt la forme d'une buse d'admission de carburant (5) et avec une armature (12) tournée vers le noyau (1) et un tube de liaison (36) disposé concentriquement par rapport à l'axe longitudinal (4) de la soupape, avec une paroi qui est reliée à une de ses extrémités à l'armature (12) et à son autre extrémité, à un organe (14) de fermeture de la soupape coopérant avec un siège de soupape fixe (9), ainsi qu'avec un dispositif de butée limitant la course d'ouverture de l'organe de fermeture (14) de la soupape, soupape caractérisée en ce que le dispositif de butée revêt la forme d'une tige de butée (40, 45), concentrique à l'axe longitudinal de la soupape, faisant saillie dans le tube de liaison (36) et touchant, dans la position d'ouverture de la soupape, l'organe de fermeture (14, 44) de la soupape, cette tige étant assemblée à une douille déplaçable (22), qui est montée de façon à pouvoir être déplacée dans le noyau (1) et qui comporte des ouvertures de passage pour le carburant.
  2. Soupape selon la revendication 1, caractérisée en ce que l'organe de fermeture (14) de la soupape comporte, dans sa zone touchée par la tige de butée (40, 45) dans la position d'ouverture de la soupape, une surface convexe.
  3. Soupape selon la revendication 1, caractérisée en ce que la tige de butée (40, 45), à son extrémité frontale tournée vers l'organe de fermeture (14, 44) de la soupape, comporte une surface convexe.
  4. Soupape selon la revendication 1, caractérisée en ce que la douille déplaçable (22) comporte des empreintes (25), dirigées radialement vers l'intérieur et s'étendant en direction axiale.
  5. Soupape selon la revendication 1 ou la revendication 4, caractérisée en ce que la douille déplaçable (22) sert d'appui à un ressort de rappel (18) agissant sur l'organe de fermeture (14) de la soupape.
  6. Soupape selon la revendication 1 ou la revendication 4, caractérisée en ce que, comme appui pour le ressort de rappel (18) agissant sur l'organe de fermeture (44) de la soupape, un coussinet (46), enfoncé dans le noyau (1) en aval de la douille déplaçable (22) et comportant dans la direction d'écoulement des orifices pour la tige de butée (45) et le carburant, est utilisé.
  7. Procédé pour la réalisation d'une soupape à commande électromagnétique selon au moins une des revendications 1 à 6, caractérisé en ce que, dans une première étape, un pointeau de soupape, constitué de l'organe de fermeture (14) de la soupape, du tube de liaison (36) et de l'armature (12), est introduit dans une pièce d'assemblage (50) de la soupape, en ce que, dans une étape suivante, un corps de siège de soupape (8) comportant le siège de soupape (9) est introduit dans un alésage de retenue (75) de la pièce d'assemblage (50) en étant dirigé sur l'organe de fermeture (14) de la soupape, et le jeu axial du pointeau de soupape, consistant en la somme présélectionnée de la course du pointeau de soupape et de l'entrefer résiduel, est fixé par la position axiale du corps de siège de soupape (8) dans l'alésage de retenue (75), et ensuite le corps de siège de soupape (8) est assemblé de façon étanche avec la pièce d'assemblage (50) et en ce que dans une étape suivante, le réglage de la course de l'organe de fermeture (14) de la soupape et de la force du ressort de rappel (18) est obtenu par la profondeur d'enfoncement par vissage ou pressage, dans un alésage d'écoulement (21) du noyau (1), de la douille déplaçable (22) assemblée avec la tige de butée (40).
  8. Procédé pour la réalisation d'une soupape à commande électromagnétique selon au moins une des revendications 1 à 6, caractérisé en ce que, dans une première étape, un pointeau de soupape, constitué de l'organe de fermeture (14) de la soupape, du tube de liaison (36) et de l'armature (12), est introduit dans une pièce d'assemblage (50) de la soupape, en ce que dans une étape suivante, l'entrefer résiduel est fixé par la profondeur d'enfoncement par vissage ou pressage dans un alésage d'écoulement (21) du noyau (1) de la douille déplaçable (22) assemblée avec la tige de butée (40), en ce que dans une étape suivante, un corps de siège de soupape (8) comportant le siège de soupape (9) est introduit dans un alésage de retenue (75) de la pièce d'assemblage (50) en étant dirigé sur l'organe de fermeture (14) de la soupape, tandis que le positionnement axial du corps de siège de soupape (8) est utilisé pour le réglage de la course du pointeau de soupape et donc, également, de la quantité de carburant injectée ainsi que de la force du ressort (18), et en ce que dans une étape finale, le corps de siège de soupape (8) est assemblé de façon étanche avec la pièce d'assemblage (50).
  9. Procédé pour la réalisation d'une soupape à commande électromagnétique selon la revendication 6, caractérisé en ce que, dans une première étape, un pointeau de soupape, constitué d'un organe de fermeture (44) de la soupape, du tube de liaison (36) et de l'armature (12), est introduit dans une pièce d'assemblage (50) de la soupape, en ce que dans une étape suivante, un corps de siège de soupape (8) comportant le siège de soupape (9) est introduit dans un alésage de retenue (75) de la pièce d'assemblage (50) en étant dirigé sur l'organe de fermeture (14) de la soupape, et le jeu axial du pointeau de soupape, consistant en la somme présélectionnée de la course du pointeau de soupape et de l'entrefer résiduel, est fixé par la position axiale du corps de siège de soupape (8) dans l'alésage de retenue (75), et ensuite le corps de siège de soupape (8) est assemblé de façon étanche avec la pièce d'assemblage (50), en ce que dans une étape suivante, la force du ressort de rappel (18) est réglée en enfonçant le coussinet (46) dans un alésage d'écoulement (21) du noyau (1), et en ce que le réglage de la course de l'organe de fermeture (44) de la soupape est obtenu, dans une étape suivante, par la profondeur d'enfoncement par vissage ou pressage, dans l'alésage d'écoulement (21), de la douille déplaçable (22) assemblée avec la tige de butée (45).
  10. Procédé pour la réalisation d'une soupape à commande électromagnétique selon la revendication 6, caractérisé en ce que dans une première étape, le coussinet (46) est tout d'abord introduit dans un alésage d'écoulement (21) du noyau (1) et ensuite un pointeau de soupape, constitué de l'organe de fermeture (44) de la soupape, du tube de liaison (36) et de l'armature (12), est introduit dans une pièce d'assemblage (50) de la soupape, en ce que dans une étape suivante, l'entrefer résiduel est fixé par la profondeur d'enfoncement, par vissage ou pressage, dans l'alésage d'écoulement (21) de la douille déplaçable (22) assemblée avec la tige de butée (45), en ce que dans une étape suivante, un corps de siège de soupape (8) comportant le siège de soupape (9) est introduit dans un alésage de retenue (75) de la pièce d'assemblage (50) en étant dirigé sur l'organe de fermeture (14) de la soupape, tandis que le positionnement axial du corps de siège de soupape (8) est utilisé pour le réglage de la course du pointeau de soupape, en ce qu'ensuite le corps de siège de soupape (8) est assemblé de façon étanche avec la pièce d'assemblage (50), et en ce que le réglage de la force du ressort de rappel (18) s'effectue dans une autre étape, dans laquelle la profondeur d'enfoncement du coussinet (46) dans l'alésage d'écoulement (21), est modifiée.
EP90916030A 1989-12-21 1990-11-10 Soupape a commande electromagnetique Expired - Lifetime EP0460125B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3942306 1989-12-21
DE3942306A DE3942306A1 (de) 1989-12-21 1989-12-21 Elektromagnetisch betaetigbares ventil

Publications (2)

Publication Number Publication Date
EP0460125A1 EP0460125A1 (fr) 1991-12-11
EP0460125B1 true EP0460125B1 (fr) 1993-11-03

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Application Number Title Priority Date Filing Date
EP90916030A Expired - Lifetime EP0460125B1 (fr) 1989-12-21 1990-11-10 Soupape a commande electromagnetique

Country Status (8)

Country Link
US (1) US5143301A (fr)
EP (1) EP0460125B1 (fr)
JP (1) JP2839709B2 (fr)
KR (1) KR100187996B1 (fr)
BR (1) BR9007144A (fr)
DE (2) DE3942306A1 (fr)
ES (1) ES2046798T3 (fr)
WO (1) WO1991010061A1 (fr)

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DE4137786C2 (de) * 1991-11-16 1999-03-25 Bosch Gmbh Robert Elektromagnetisch betätigbares Einspritzventil
DE4137994C2 (de) * 1991-11-19 1999-06-02 Bosch Gmbh Robert Elektromagnetisch betätigbares Einspritzventil mit einem Düsenträger und Verfahren zur Herstellung eines Düsenträgers eines Einspritzventils
US5651501A (en) * 1993-12-23 1997-07-29 Caterpillar Inc. Fluid damping of a valve assembly
US5494223A (en) * 1994-08-18 1996-02-27 Siemens Automotive L.P. Fuel injector having improved parallelism of impacting armature surface to impacted stop surface
JPH0893947A (ja) * 1994-09-28 1996-04-12 Aisin Seiki Co Ltd 電磁弁装置およびその製造方法
DE19503821A1 (de) * 1995-02-06 1996-08-08 Bosch Gmbh Robert Elektromagnetisch betätigbares Ventil
EP0781915A1 (fr) * 1995-12-26 1997-07-02 General Motors Corporation Injecteur de carburant
US5865371A (en) * 1996-07-26 1999-02-02 Siemens Automotive Corporation Armature motion control method and apparatus for a fuel injector
JP4070042B2 (ja) * 1998-01-20 2008-04-02 三菱電機株式会社 筒内噴射用燃料噴射弁の製造方法およびそれに用いられる燃料噴射量調整装置
US6422486B1 (en) 2000-03-31 2002-07-23 Siemens Automotive Corporation Armature/needle assembly for a fuel injector and method of manufacturing same
GB0102500D0 (en) * 2001-02-01 2001-03-14 Delphi Tech Inc Method of assembling an actuator arrangement
DE10150786C2 (de) * 2001-10-15 2003-08-07 Siemens Ag Verfahren und Vorrichtung zum automatischen Einstellen von Injektoren
US7163188B1 (en) * 2004-07-30 2007-01-16 Emerson Electric Co. Solenoid valve for fluid flow
US20080210896A1 (en) * 2004-11-26 2008-09-04 Continental Teves Ag & Ohg Electromagnetically Controllable Actuator
AU2012334976A1 (en) * 2011-11-10 2014-05-29 Bray International, Inc. Biased swing check valve
JP6354651B2 (ja) * 2015-04-24 2018-07-11 株式会社デンソー 弁装置、及び、弁装置の製造装置

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Also Published As

Publication number Publication date
WO1991010061A1 (fr) 1991-07-11
DE3942306A1 (de) 1991-06-27
DE59003365D1 (de) 1993-12-09
JP2839709B2 (ja) 1998-12-16
ES2046798T3 (es) 1994-02-01
BR9007144A (pt) 1992-02-18
KR920701660A (ko) 1992-08-12
US5143301A (en) 1992-09-01
EP0460125A1 (fr) 1991-12-11
KR100187996B1 (ko) 1999-06-01

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