EP2906814A1 - Électrovalve - Google Patents

Électrovalve

Info

Publication number
EP2906814A1
EP2906814A1 EP13788687.5A EP13788687A EP2906814A1 EP 2906814 A1 EP2906814 A1 EP 2906814A1 EP 13788687 A EP13788687 A EP 13788687A EP 2906814 A1 EP2906814 A1 EP 2906814A1
Authority
EP
European Patent Office
Prior art keywords
actuator
housing
face
guide surface
solenoid valve
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.)
Ceased
Application number
EP13788687.5A
Other languages
German (de)
English (en)
Inventor
Matthias Bleeck
Bernd Gugel
Thomas KRÜGER
Andreas Mühlbauer
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.)
Aumovio Germany GmbH
Original Assignee
Continental Automotive Technologies 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 Continental Automotive Technologies GmbH filed Critical Continental Automotive Technologies GmbH
Publication of EP2906814A1 publication Critical patent/EP2906814A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • 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
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • F02M59/368—Pump inlet valves being closed when actuated
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0075—Stop members in valves, e.g. plates or disks limiting the movement of armature, valve or spring
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2087—Means to cause rotational flow of fluid [e.g., vortex generator]

Definitions

  • the invention relates to a solenoid valve having a housing, a valve actuating device and a closing element, wherein the housing has an interior with a central axis, wherein the valve actuating device comprises an actuator, which is arranged displaceably in the interior space along the central axis, wherein the actuator with the Closing element is operatively connected to open or close the solenoid valve with a displacement of the actuator along the central axis, wherein the actuator with the housing in the interior of the housing delimits a leakage space which can be filled with a fluid, in particular a fuel.
  • solenoid valves for controlling a fuel flow comprising a housing having an interior in which an actuator is arranged, which is displaceable by means of a magnetic field in the interior.
  • the actuator is coupled to a valve body which is raised or lowered by the displacement of the actuator to open or close an outlet opening of the housing.
  • the actuator forms a leakage space in the interior of the housing, which is filled with fuel during operation. Due to the displacement of the actuator in the leakage space whose volume is increased or decreased. This results in an increase in the volume, a pressure drop in the leakage chamber, which causes cavitation or formation of fuel vapor bubbles occurs in the leakage chamber.
  • the cavitation causes in a contact with the surfaces of the housing or the actuator cavitation, which roughened the surface of the housing or the actuator or long term destroyed by the high mechanical Belas ⁇ tions of cavitation on the surface. It is an object of the invention to provide an improved solenoid valve, wherein the cavitation is prevented from destroying the surfaces of the housing or of the actuator. This object is achieved by means of the features of claim 1. Advantageous embodiments are specified in the dependent claims.
  • the solenoid valve comprises a housing, ⁇ a valve actuator and a closing element.
  • the housing comprises an interior with a central axis.
  • the valve actuating device has an actuator, which is arranged displaceably in the interior space along the central axis.
  • the actuator is in operative connection with the closing element in order to open or close the magnetic valve with a displacement of the actuator along the central axis.
  • the actuator with the housing in the interior of the housing delimits a leakage space, which can be filled with a fluid, in particular a fuel.
  • at least one vortex generator which is designed to generate a fluid vortex in the leakage space, is arranged in the leakage chamber on the housing and / or on the actuator.
  • the fluidic vortex has the advantage that, for a Volumenver ⁇ enlargement, thus with a lowering movement of the actuator, and a concomitant drop in pressure in the leakage space a resulting cavitation and a concomitant formation of
  • Fuel vapor bubbles are held by the fuel vortex in its vortex core and are enclosed by a circulation of the fuel vortex, so that contact of the vapor bubbles with the solenoid valve and so avoids cavitation in the solenoid valve is avoided. Further, the steam bubbles, should they come into contact with the surfaces of the solenoid valve, have only a very short residence time at one position, as they are further torn by the circulation of the fluid vortex.
  • the housing has a housing end face, which faces the actuator, and the actuator has an actuator end face, which faces the housing end face, wherein the leakage space through the actuator end face and the Housing end surface is limited, and wherein the vortex generator is arranged on the actuator end face and / or on the housing end face. In this way, the stroke required axially for the movement of the actuator can be kept low.
  • the leakage space is delimited by an inner peripheral surface disposed on the housing, the vortex generator comprising at least a first guide surface, the first guide surface being inclined relative to the actuator end surface or the housing end surface and spaced radially inward toward the central circumferential surface in the direction of the central axis is, wherein the first guide surface is formed to deflect the fluid in its flow direction. In this way it can be ensured that by means of the first guide surface, a fluid flow flowing into the leakage chamber is deflected such that the fluid vortex can be generated by means of the first guide surface.
  • the first guide surface to the housing end face or the Aktorstirn is particularly advantageous if the first guide surface to the housing end face or the Aktorstirn synthassembly.
  • a particularly large vortex core can be provided by enclosing a large volume of fuel or cavitation bubbles.
  • the vortex generator can be produced in a particularly simple manner if the first guide surface is arranged to be rotationally symmetrical with respect to the center axis of the inner space and peripherally arranged on the vortex generator.
  • the vortex generator has at least one bulge, which protrudes from the actuator end face and / or the housing end face.
  • the first guide surface is arranged on the circumferential side of the bulge. It is also particularly advantageous if the vortex generator has at least one recess, wherein the recess has a second guide surface, wherein the second guide surface is arranged inclined relative to the actuator end face or the housing end face and radially inward in the direction of the central axis to the inner peripheral surface.
  • the recess is arranged radially spaced from the central axis of the interior.
  • the recess can be introduced into the actuator, when the recess is groove-shaped and is rotationally symmetrical circumferentially formed about the central axis of the interior.
  • the recess can be inexpensively introduced into the actuator end face and / or the housing end face by means of a conventional turning or milling method or a casting method. It has proved to be particularly advantageous if the bulge and / or the recess substantially has a cross-section of an isosceles trapezium.
  • the second guide surface of the recess is arranged radially inwardly lying relative to the central axis to the first guide surface of the bulge. In this way, it is ensured that a fluid vortexing introduced through the first guide surface of the projection leads to a circulation of the fluid vortex being continued at the second guide surface of the recess and the fluid vortex formation is supported by the second guide surface.
  • a particularly strong fluid vortex then forms when between the actuator end face or the housing end face and at least one of the first to third guide surface
  • flow-favorable is provided if a rounding is provided between the actuator end face and / or the housing end face and at least one of the first to third guide surfaces.
  • the vortex formation can also be specifically supported by the fact that a gap is provided between the inner peripheral surface of the housing and the actuator, wherein between the closing element and the actuator in the interior of the housing, a control space is formed, which is filled with the fluid, wherein the
  • Leakage space is connected to a control chamber, wherein the vortex generator and the gap are in fluid dynamic operative connection.
  • fluid can be conveyed from the valve chamber into the leakage chamber and thereby the fluid vortex formation in the leakage chamber can be promoted.
  • FIG. 1 is a schematic sectional view through a solenoid valve in a lifting movement
  • Figure 2 is a schematic plan view of an actuator of the solenoid valve
  • Figure 3 is a schematic sectional view through the solenoid valve shown in Figure 1 during a lowering movement
  • Figure 4 shows a schematic sectional view through alternative embodiments of the solenoid valve 10 shown in Figures 1 to 3 show.
  • Figure 1 shows a schematic sectional view through a solenoid valve 10 in a lifting movement.
  • Figure 2 shows a schematic plan view of an actuator 15 of the solenoid valve 10 and
  • Figure 3 shows a schematic sectional view through the solenoid valve 10 shown in Figure 1 at a lowering movement.
  • the figures 1 to 3 will be explained in context. The same components are provided with the same reference numerals.
  • the solenoid valve 10 includes a housing 20 with an interior 25. In the interior 25 of the actuator 15 is arranged.
  • the actuator 15 can be moved by means of circumferentially arranged on the housing 20 coils 26 in the interior 25 along a central axis 30 of the interior up and down.
  • the coils 26 are connected to a control device, not shown, and can be acted upon by electric current.
  • the coils 26 provide a magnetic field upon application of electric current.
  • a pole piece 27 is disposed circumferentially supported on the housing 20. Between the pole piece 27 and the housing 20 grooves 28 are provided.
  • the actuator 15 is on the underside at a first longitudinal end with a
  • Closing element 35 which is seated in a valve seat 40 in a closed position and an inlet 45, which is arranged on the underside in Figure 1, separated from a left side arranged outlet 55.
  • a spring element 36 is arranged in a receptacle 37 of the pole piece 27.
  • the spring element 36 surrounds the closing element 35 on the circumferential side and is supported by a first longitudinal end of the spring element 36 at the first longitudinal end of the actuator 15 off. With a second longitudinal end of the spring element 36, the spring element 36 is supported on a shoulder 38 which limits the receptacle 37 of the pole piece 27.
  • the spring element 36 is designed as a helical compression spring and presses the actuator 15 by means of a spring force F F from the pole piece 27 in the longitudinal direction away or in Figures 1 and 3 upwards. Furthermore, the shoulder 38 is designed to encompass the closure element 35 on the circumference and to guide the closure element 35 during the up and down movement.
  • the spring member 36 By the spring member 36, the closure member 35 is raised, a passage 50 is released below the closure member 35 so that the inlet 45 is connected to the outlet 55 of the solenoid valve 10 and thus a fuel or another fluid from the inlet 45 to the outlet 55th can flow.
  • the coils 26 are supplied with electric current, so that they generate a magnetic field.
  • the magnetic field is introduced via the housing 20 into the pole piece 27, which attracts the actuator 15 and thus provides a counterforce F G to the spring force F F. If the counterforce F G is greater than the spring force F F , the actuator 15 moves in the direction of the pole piece 26 until the actuator 15 abuts the end face of the pole piece 27 or until the closure member 35 is seated on the valve seat 40 and the inlet 45 closes.
  • the actuator 15 forms in the interior 25 at the rear at a second longitudinal end on the side facing away from the closing element 35 side, together with the housing 20 a leakage chamber 65 in the interior 25 from.
  • the actuator 15 in this case has a diameter D A , which is smaller than an inner diameter D G of the housing 20, so that between the actuator 15 and the housing 20, a gap 70 is provided through which the leakage space 65 via the grooves 28 of the pole piece 27 with a control room 75 in which the
  • Closing element 35 is arranged, is connected.
  • the control chamber 75 is thereby limited by the housing 20 and the pole piece 27.
  • the control chamber 75 is, as well as the leakage chamber 65, filled with the flowing through the inlet 45 into the solenoid valve 10 fluid.
  • the control space 75 is connected to the leakage space 65 by means of the grooves 28 and the gap 70.
  • a further gap or grooves between the closing element 35 and the shoulder 38 would be conceivable.
  • the actuator 15 and an inner peripheral surface 80 of the housing 20 are formed in the embodiment rotationally symmetrical to the central axis 30.
  • the actuator 15 and the housing 20 also have other cross sections than a circular cross section, such as a polygon, an elliptical or a rectangular cross section.
  • the leakage space 65 is also provided in the longitudinal direction, that is to say the direction of the center axis 30, through a housing end face 85 which faces the actuator 15 and an actuator end face 90 which is the one
  • a vortex generator 95 is further provided in the leakage chamber 65.
  • the vortex generator 95 comprises a bulge 100 which is arranged on the housing end face 85.
  • the vortex generator 95 comprises a recess 105, which at the
  • Actuator end face 90 is arranged.
  • the recess 105 on the housing end face 85 and the bulge 100 can be arranged on the Aktorstirn Chemistry 90.
  • the recess 105 and the bulge 100 are arranged on the same end face, for example on the actuator end face 95 or on the housing end face 85.
  • one or more recesses 105 or alternatively one or more recesses 100 are provided on the housing end face 85 and / or the actuator end face 90.
  • the bulge 100 comprises a first guide surface 110, which is arranged obliquely to the central axis 30.
  • first guide surface 110 is inclined radially inwardly away from the housing end face 85 in the direction of the longitudinal axis 30, so that the projection 100 tapers in the longitudinal direction toward the actuator end face 90.
  • the first guide surface 110 is rotationssym ⁇ metric arranged circumferentially around the central axis 30 thereby, so that the protrusion 100 has a frusto-conical formation which protrudes into the leakage space 65th
  • rotationssymmet ⁇ generic configuration of the first guide surface 110 the bulge 100 in the cross-section of an isosceles trapezoid on.
  • the first guide surface 110 is aligned with respect to a cover surface 115 of the bulge 100 such that the cover surface 115 forms a first tear-off edge 120 together with the first guide surface 100.
  • the top surface 115 is aligned perpendicular to the central axis 30 of the interior 25 and thus parallel to the housing end face, so that the tear-off edge 120 is formed circumferentially around the central axis 30.
  • the bulge 100 is arranged transversely to the central axis 30 on the housing end face 85.
  • the protrusion 100 may have a non Rotati ⁇ onssymmetrische embodiment.
  • the recess 105 has a second guide surface 125 and a third guide surface 130.
  • the recess 105 is configured groove-shaped, so that the second guide surface 125 and the third guide surface 130 form the side surface of the groove.
  • the second guide surface 125 is connected to the third guide surface 130 via a recess base 135.
  • the second guide surface 125 is arranged radially inwardly to the first guide surface 110 of the bulge.
  • the third guide surface 130 is disposed radially outward both to the first guide surface 110 and to the second guide surface 125.
  • the second guide surface 125 and the third guide surface 130 are also aligned obliquely to the central axis 30, wherein the second guide surface 125 is arranged to the third guide surface 130 on the Ausappelungsground 135, that the recess 105 opens in the direction of the housing end face 85 and thus the recess 125 at a to
  • Housing end face 85 facing the end of the recess 105 is configured wider than the recessed base 135 and thus has an isosceles trapezoidal shape in cross section.
  • the recess base 135 is directed transversely to the central axis 30 from ⁇ and extends annularly rotationally symmetrical about the central axis 30 around.
  • a second tear-off edge 145 is formed radially inward on the second guide surface 25 in the transition to an actuator end face 90.
  • a first portion 140 of the actuator end face 90 is provided.
  • the second tear-off edge 145 which is arranged centrally on the central axis 30, circular,.
  • a third tear-off edge 155 is formed between the actuator end face 90 and the third guide face 130.
  • the third tear-off edge 155 is likewise of circular design and is arranged centrally relative to the central axis 30.
  • a second portion 150 of the Aktorstirn preparation 90 is arranged. The first portion 140 and the second portion 150 of
  • Actuator end face 90 are arranged in the same plane perpendicular to the central axis 30.
  • the first portion 140 is arranged axially in the direction of the central axis 30 at a distance from the second portion 150.
  • the vortex generator 95 or by the bulge 100 and the recess 105 the fuel flow (shown by arrows in the figures) is guided in the leakage chamber 65 such that a vortex 156 in the leakage chamber 65 with a circulation 160 and a lying within the circulation 160 Fuel swivel core 165 is caused.
  • the circulation 160 is shown symbolically in FIGS. 1 and 3 schematically by means of arrows.
  • Fuel swirl core 165 is marked by dashed lines.
  • the fuel lying on the housing end face 85 flows radially inward and is directed by the first guide surface 110 in the direction of the actuator end face 90.
  • the fuel flow strikes the second guide surface 125 and is directed radially outward by the latter.
  • the fuel flow is deflected by the third guide surface 130 towards the housing end face 85 and then flows through the gap 70 in the control chamber 75. Due to the continuous flow of fuel and the configuration of the vortex generator 95, the vortex 156 has a toroidal shape on, whose central axis lies on the central axis 30 of the inner space 25.
  • the circulation 160 of the vortex 156 in both a lifting and a lowering movement between the bulge 100 and the first portion 140 and the second guide surface 125 rotates from the bulge 100 in the direction of the recess 105.
  • the circulation 160 of the fuel vortex 156 causes that a negative pressure region is formed in the fuel ⁇ vortex core 165th
  • the actuator 15 is guided to close the solenoid valve 10 in a lowering movement, so that the closing element 35 moves in the direction of the valve seat 40, the volume of the leakage space 65 is increased. Because the movements of the solenoid valve 10 or of the actuator 15 take place very quickly and at a high cycle rate, vapor bubbles 170 or cavitation are formed in the leakage chamber 65 due to the vacuum forming in the leakage chamber 65 during a lowering movement. Upon contact with the material of the actuator 15 or the inner circumferential surface 80 or the housing front side 85, the vapor bubbles 170 lead to cavitation or roughening of the surface of the actuator 15 or the housing 20.
  • Housing end 85 is guided.
  • the first guide surface 110 deflects the fuel in the direction of the actuator end face 90, so that the fuel flows from the first guide surface 110 in the direction of the second guide surface 125.
  • the second guide surface 125 leads the fuel flow to the recess base 135, so that now the fuel flow flows essentially transversely to the central axis 30 radially outward.
  • the third guide surface 130 again redirects the fuel flow such that it flows in the direction of the housing end face 85 and unites with the inflowing fuel flowing through the gap 70.
  • a rotating vortex 156 with a toroidal shape is formed between the housing end face 85 and the actuator end face 90.
  • the torus shape of the vortex 156 offers the advantage that a particularly high and large trained
  • Fuel vortex core 165 is formed annularly around the central axis 30 in the leakage space 65, so that a particularly large number of vapor bubbles 170 can be trapped there. Furthermore, the torus vortex 156 has a particularly high stability. Furthermore, energy is supplied to the vortex 156 both during the lifting and during the lowering movement of the actuator 15 so that the vortex 156 rotates stably in the leakage space 65 and has a particularly high circulation 160 due to the configuration of the vortex generator.
  • a stable fuel vortex core 165 is formed only when the guide surface 110, 125, 130 is arranged in such a manner to the housing end face 85, or the anchor end face 90, that the Kraftstoffström at the respective between the Guide surface 110, 125, 130 and the top surface 115, 140, 150 arranged tear-off edge 120, 145, 155 breaks off.
  • Figure 4 shows a schematic sectional view through an alternative embodiment of the solenoid valve 10 shown in Figures 1 to 3.
  • the solenoid valve 10 is formed substantially identical to the solenoid valve 10 shown in Figures 1 to 3.
  • the guide surfaces 110, 125, 130 are arranged parallel to the central axis 30 or perpendicular to the housing end face 85 or the anchor end face 90.
  • a rounding 185 at the respective trailing edge 120, 145, 155 provided.
  • a further rounding 190 is provided between the second and the third guide surface 125, 130 and the recess base 135.
  • Fuel flow through the gap 70 by the fourth guide surface 180 is deflected in the direction of the bulge 100 and thus an increased circulation 160 can be achieved. It is also conceivable to design the bulge 100 or the recess 105 wider or narrower than shown in the figures. Of course, it is also conceivable to provide two or more recesses 105. Instead of arranging a bulge 100 opposite a recess 105, it would also be conceivable to arrange a bulge 100 or a respective recess 105 on the housing end face 85 or on the actuator end face 90.
  • the solenoid valve 10 is filled with fuel in FIGS.
  • other fluids for filling the solenoid valve 10 in particular water, fuels or oils, conceivable.
  • the vortex generator 95 is to be designed depending on the viscosity of the fluid.
  • the first baffle 110 includes a first angle to the housing face 85.
  • the second guide surface 125 or the third guide surface 130 includes a second or third angle ⁇ , ⁇ to the actuator end face 90.
  • the angles ⁇ , ⁇ preferably have 90 ° to 160 °, in particular 120 ° to 140 °, in particular from 132 ° to 138 °.
  • the angles, ⁇ , ⁇ are the same size in the embodiments shown.
  • the angles, ß, ⁇ are also chosen different from each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Details Of Valves (AREA)

Abstract

L'invention concerne une électrovalve (10) comprenant un carter (20), un dispositif d'actionnement de valve (15, 26) et un élément obturateur (35), le carter (20) comprenant un espace interne (25) doté d'un axe central (30), le dispositif d'actionnement de valve comportant un actionneur (15) qui est disposé mobile le long de l'axe central (30) dans l'espace interne (25) ; l'actionneur (15) étant en liaison fonctionnelle avec l'élément obturateur (35) pour ouvrir ou fermer l'électrovalve (10) par déplacement de l'actionneur (15) le long de l'axe central (30) ; l'actionneur (15) délimitant avec le carter (20), dans l'espace interne (25) du carter (20), un compartiment de fuite (65) qui peut être rempli d'un fluide, notamment de carburant ; au moins un générateur de turbulences (95) étant disposé sur le carter (20) et/ou l'actionneur (15) dans le compartiment de fuite (65), ledit générateur de turbulences étant conçu pour produire des turbulences de fluide (156, 165) dans le compartiment de fuite (65).
EP13788687.5A 2012-10-12 2013-10-10 Électrovalve Ceased EP2906814A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012218667.0A DE102012218667B4 (de) 2012-10-12 2012-10-12 Magnetventil
PCT/EP2013/071111 WO2014057012A1 (fr) 2012-10-12 2013-10-10 Électrovalve

Publications (1)

Publication Number Publication Date
EP2906814A1 true EP2906814A1 (fr) 2015-08-19

Family

ID=49552320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13788687.5A Ceased EP2906814A1 (fr) 2012-10-12 2013-10-10 Électrovalve

Country Status (7)

Country Link
US (1) US9551432B2 (fr)
EP (1) EP2906814A1 (fr)
JP (1) JP6049896B2 (fr)
KR (1) KR102128130B1 (fr)
CN (1) CN104704231B (fr)
DE (1) DE102012218667B4 (fr)
WO (1) WO2014057012A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012218667B4 (de) 2012-10-12 2014-06-05 Continental Automotive Gmbh Magnetventil
USD818958S1 (en) * 2016-03-15 2018-05-29 Karl Dungs Gmbh & Co. Kg Valve drive

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE10356948A1 (de) * 2003-12-05 2005-06-30 Robert Bosch Gmbh Magnetventil, insbesondere Kraftstoffventil

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JP6049896B2 (ja) 2016-12-21
KR20150064200A (ko) 2015-06-10
US20150276085A1 (en) 2015-10-01
JP2015532403A (ja) 2015-11-09
US9551432B2 (en) 2017-01-24
DE102012218667A1 (de) 2014-04-17
CN104704231A (zh) 2015-06-10
KR102128130B1 (ko) 2020-06-30
DE102012218667B4 (de) 2014-06-05
CN104704231B (zh) 2017-05-03
WO2014057012A1 (fr) 2014-04-17

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