EP1203152A1 - Dispositif pour refouler et/ou pulveriser des substances coulantes, notamment des fluides - Google Patents

Dispositif pour refouler et/ou pulveriser des substances coulantes, notamment des fluides

Info

Publication number
EP1203152A1
EP1203152A1 EP00956307A EP00956307A EP1203152A1 EP 1203152 A1 EP1203152 A1 EP 1203152A1 EP 00956307 A EP00956307 A EP 00956307A EP 00956307 A EP00956307 A EP 00956307A EP 1203152 A1 EP1203152 A1 EP 1203152A1
Authority
EP
European Patent Office
Prior art keywords
armature
anchor
bore
cylinder
elements
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.)
Withdrawn
Application number
EP00956307A
Other languages
German (de)
English (en)
Inventor
Wolfram Hellmich
Klaus-Jürgen PETER
Robert Kotter
Liang Zhang
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.)
BRP US Inc
Original Assignee
Bombardier Motor Corp of America
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 Bombardier Motor Corp of America filed Critical Bombardier Motor Corp of America
Publication of EP1203152A1 publication Critical patent/EP1203152A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
    • 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
    • F02M51/04—Pumps peculiar thereto
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/027—Injectors structurally combined with fuel-injection pumps characterised by the pump drive electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/046—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the fluid flowing through the moving part of the motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs

Definitions

  • the invention relates to a device for conveying and / or spraying free-flowing media, in particular fluids, which works according to the energy storage principle and is designed as an electromagnetically driven reciprocating pump.
  • Such a device is known for example from WO 96/34196.
  • These injection devices work according to the solid-state energy storage principle and have an armature space delimited by an armature cylinder, in which an armature device is axially displaceably mounted as the drive device.
  • the armature cylinder is surrounded by a magnet coil which, when electrically controlled, generates the magnetic field necessary for driving the armature device.
  • the armature cylinder comprises two armature cylinder sleeves in axial succession, between which a ring element made of a magnetic non-conductor is seated.
  • the anchor device has an axially displaceable delivery piston tube and an anchor element fastened thereon. The anchor element sits with radial play in the anchor cylinder.
  • the clearance gap represents a magnetic resistance that weakens the magnetic flux and is referred to as a so-called parasitic gap.
  • the armature device absorbs kinetic energy during operation during an almost resistance-free acceleration phase, the resistance-free acceleration phase taking place through a valve closing off a pressure chamber, as a result of which the fluid to be sprayed in the pressure chamber experiences a pressure surge which spreads in the form of a pressure wave in the pressure chamber.
  • the pressure wave causes an opening of a spring-loaded injection nozzle element which closes the pressure chamber at the other end, so that the fluid located in the pressure chamber is sprayed off.
  • the anchor device in particular its delivery piston tube, is moved further in the pressure chamber, as a result of which the spraying process continues in the form of a displacing spraying.
  • the return stroke of the anchor device takes place by means of a compression spring.
  • Such fluid injection devices have e.g. Proven as fuel injection devices for internal combustion engines, especially for two-stroke internal combustion engines.
  • This increased delivery rate per work cycle and the increased volume flow can be achieved, for example, by increasing the size of the electromagnets, which, however, then also have an increased electrical energy requirement. However, this not only entails additional costs for the larger elements, but above all for more powerful generators and control circuits for the electromagnets.
  • anchor and “yoke” are used below to define the terms of two mutually movable elements between which a magnetic force acts, the “yoke” meaning the fixed of the two mutually movable elements and the “anchor” because of the magnetic force referred to with respect to the “yoke” element.
  • the working gap area is an imaginary area which results from a radial projection of an axial gap (working gaps) between an "anchor” and a corresponding "yoke” to a predetermined diameter.
  • guiding element means an element which serves for the targeted conduction or guidance of the magnetic flux.
  • a device for conveying and / or spraying flowable media, in particular fluids which works according to the energy storage principle and is designed as an electromagnetically driven reciprocating pump with at least one armature device as a drive element and the armature device has at least two armature elements and magnetically corresponding yoke elements to the armature elements assigned.
  • the effect was used that by increasing the working gap area between an armature and magnetically corresponding yoke, a higher amount of energy from the magnetic field made available by a coil is transferable to the anchor device.
  • an enlargement of the working gap area is achieved in a particularly simple manner, wherein a magnetic series connection of at least two anchor elements is provided together with corresponding yoke elements.
  • an anchor device is provided which comprises a plurality, i.e. at least two anchor elements axially spaced apart on an anchor support, e.g. carries a delivery piston tube.
  • Fixed yoke elements are respectively magnetically corresponding to the anchor elements of the anchor device and form a magnetic opposite pole for the anchor elements.
  • an armature cylinder surrounding the armature device has corresponding armature cylinder sleeves as yoke elements, which are separated from one another by magnetically non-conductive ring elements.
  • the anchor device is designed as a two anchor element device and consists of an anchor cylinder with two corresponding yoke elements, e.g. Surround armature cylinder sleeves.
  • the device according to the invention operates on the solid-state energy storage principle.
  • a device according to the invention for conveying and / or spraying free-flowing media, in particular fluids, it is advantageous that, with a given electrical energy supply, the static magnetic force on the armature device is considerably greater than in the prior art and thus also the force provided by the armature device along its stroke Work is significantly larger. In this respect, the energy transferred from the anchor device to the medium to be pumped or sprayed and thus the efficiency of the pre-invention direction significantly increased. Because the armature elements are arranged axially one behind the other in a magnetic series connection, a device according to the invention requires only a small structural volume.
  • the increased energy input into the medium to be pumped or sprayed can be used, depending on the geometric configuration of the pumping device, in the form of a higher pumping capacity per work cycle or a higher volume flow and / or a higher pressure in the medium to be pumped or sprayed. This can be done, for example, by choosing a certain diameter of the pump's media pumping devices, e.g. B. the delivery piston tube can be predetermined.
  • FIG. 1 shows a longitudinal section through an inventive device for conveying and / or spraying flowable media, in particular fluids.
  • FIG. 2 shows a detailed view of the longitudinal section of a device according to FIG. 1;
  • FIG. 3 shows schematically the field line course of the magnetic field lines of a device according to the invention according to FIG. 1.
  • the illustrated preferred embodiment of the device 1 works according to the solid-state energy storage principle and has a pot-shaped drive housing 2 and a pump housing 3 closing an open end of the pot-shaped drive housing 2.
  • the drive housing 2 and the pump housing 3 are essentially rotationally symmetrical bodies and have a common central longitudinal axis 4.
  • the pump housing 3 is arranged upstream of the drive housing 2 in a conveying direction 5 of the medium to be pumped or sprayed.
  • the drive housing 2 has a thin-walled, cylinder jacket-shaped outer wall 6 and a thin-walled bottom wall 7 which closes off the drive housing 2 at one end, so that a drive housing interior 8 is limited.
  • the bottom wall 7 is formed in two steps radially towards the central longitudinal axis 4.
  • the bottom wall 7 has a first annular end wall 9 radially from the outside inwards, a first annular step wall 10 running coaxially to the outer wall 6, a second annular end wall 11 axially set back against the conveying direction 5 with respect to the first annular end wall 9, a second annular step wall 12 and one with respect to the conveying direction 5 axially rearmost end wall 13.
  • the outer wall 6 has a recess 14 in which a connection device 15 with contact elements 16 for connecting the device 1 to a power source is seated.
  • the outer wall has a thread 17 on its inside.
  • a substantially cylindrical disk-shaped guide piece 18 is seated in its radially inner partial area, so that a bottom cavity 19 is delimited by the guide piece 18, the second annular step wall 12 and the end wall 13.
  • the guide piece 18 has a central bearing bore 20 with the central longitudinal axis 4 as the bore axis. Radially around the bearing bore 20 there are a plurality of through bores 21 which run parallel to the bearing bore 20 and which open into the base cavity 19 on the base side.
  • a first cylinder-tube-shaped anchor cylinder sleeve 22 is seated as a guide element, which extends away from the bottom wall 7 with the central longitudinal axis 4 as a central axis into the interior of the drive housing 8 protrudes.
  • the first anchor cyan sleeve 22 consists of a magnetically highly conductive material and has an interior end face 23, from which a small ring web 24 extends axially in the conveying direction 5.
  • a first cylindrical ring-shaped ring element 25 sits as a spacing element or means for interrupting the magnetic flux on its end face 23, held radially by the ring web 24.
  • the ring element 25 consists of a magnetic non-conductor, for example made of stainless steel.
  • the first yoke element is followed by a cylindrical ring-shaped second armature cylinder sleeve 26, which on its bottom end face 27 and on its pump housing end face 28 each has an axially outgoing ring web 29 or 30 on the radially inner side.
  • a second ring element 31 is seated on the end face 28 of the second armature cylinder sleeve 26 as a spacing element or means for interrupting the magnetic flux, which has the same spatial shape as the first ring element 25 and also of a magnetically non-conductive, non-magnetizable material , e.g. Stainless steel.
  • a third anchor cylinder sleeve 32 follows as the second yoke element, which has an end face 33 at its bottom end and, analogously to the second anchor cylinder sleeve 26, an annular web 34. It sits axially on one end on the second ring element 31 and sits on the other end in one piece in the form of an annular web on the bottom end face 40 of the pump housing 3.
  • the third armature cylinder sleeve 32 delimits a radial inner ring region 40a of the bottom end face 40 of the pump housing 3.
  • the armature cylinder sleeves 22, 26, 32 and the ring elements 25, 31 form an armature cylinder 35 with the central longitudinal axis 4 as the central axis, which delimits an armature space 41.
  • the armature chamber 41 is on the bottom wall side through the guide piece 18 and on the pump housing side through the inner ring region 40a of the end face 40 of the pump housing 3 limited.
  • the radial outer surfaces of the armature cylinder sleeves 22, 26, 32 and the ring elements 25, 31 are aligned with one another in the axial direction, so that a cylindrical armature cylinder outer surface is formed.
  • the ring elements 25, 31 have a somewhat smaller wall thickness than the armature cylinder sleeves 22, 26, 32, so that their inner surfaces have a greater radial distance from the central longitudinal axis 4 compared to the axially aligned inner surfaces of the armature cylinder sleeves 22, 26, 32.
  • a cable drum-shaped coil support 43 Surrounding the outer side of the armature cylinder 35, a cable drum-shaped coil support 43 is seated in the coil space 42 with a cylindrical tubular support base tube wall 44, an end-side limiting ring web 45 radially extending from this end and a pump housing Limiting ring web 46.
  • the limiting ring webs 45, 46 extend radially to just before the outer wall 6 of the drive housing 2.
  • the coil carrier 43 extends from the bottom end face 40 of the pump housing 3 to just before the first ring end wall 9 of the drive housing 2.
  • the pump housing 3 is a body which is essentially rotationally symmetrical about the central longitudinal axis 4 and has a base part 50 and a nozzle receiving cylinder 51 which is integrally formed on the base part 50 and axially extends from it in the conveying direction 5.
  • the base part 50 is in the form of a cylindrical disk and is delimited on the bottom side by the end face 40 and the inner region 40a of the end face 40 and on the opposite side by an end face 55.
  • the base part 50 has a circumferential surface 53 which has an external thread 54 corresponding to the internal thread 17 of the drive housing 2 in its bottom end region.
  • the base part 50 is screwed into the drive housing 2 so far that the armature cylinder sleeves 22, 26, 32 and the ring elements 25, 31 are pressed axially against one another and are supported on the second ring end wall 11 via the guide piece 18.
  • a sealing ring 55 for example an O-ring, is provided, which is located in one of a bottom end face of the first armature cylinder sleeve 22, the first ring step wall 10, the second ring end wall 11 and an L- shaped recess in the guide piece 18 formed sealing channel 56 sits.
  • the base part 50 has a simply stepped through bore 57 with the central longitudinal axis 4 as the central axis, which is designed as a receiving bore 57a at the bottom and opens into the armature space 41 and ends at the other end in a blind bore 58 which is delimited by the nozzle receiving cylinder 51 and is enlarged compared to the stepped through bore 57 ,
  • a guide cylinder 59 is seated in the armature-side extension of the step-through bore 57 in a form-fitting and non-positive manner, which extends tapering in two steps at the level of the inner region 40a into the armature space 41, so that an annular end face 60 and an annular projection 61 are formed.
  • the guide cylinder 59 has a stepped through bore 62 which has the central longitudinal axis 4 as the central axis, that is to say axially aligned with the bearing bore 20 of the guide piece 18.
  • the through hole 62 is at its end facing away from the armature space 41 the diameter of the through hole 57 is expanded.
  • a plurality of stop ribs 63 for a valve body 64 are distributed over their inner circumference and are arranged radially inward and spaced apart from one another. The valve body 64 sits with play in the through hole 57, so that the areas in front of and behind the valve body are hydraulically communicating.
  • a multiply tapered feed bore 65 for the medium to be pumped or sprayed out, which opens into the through bore 57.
  • a feed device 66 consisting of a hollow drilled feed nipple 67 and a check valve element 69 which is arranged radially on the inside in the feed direction 68 and which prevents a media flow against the feed direction 68.
  • a first flood bore 70 branches off diagonally from the feed bore 65, which opens into the armature space 41 and is connected to the central bore of the feed nipple 67 via a transverse bore 71.
  • a radially directed blind hole-shaped drain hole 72 is made in the pump housing 3, in which a drain nipple 73 sits as a drain device.
  • a second flood bore 74 branches off diagonally from the bottom of the drain bore 72 and also opens into the armature space 41.
  • a pressure chamber end part 80, a carrier part 81 for a standing pressure valve 82 and a spray nozzle element 83 with a spring-loaded nozzle needle 84 are seated axially in the conveying direction 5 in the blind hole 58 of the nozzle receiving cylinder 51.
  • the pressure chamber end part 80 is seated radially in a form-fitting manner in the blind hole 58 and axially on the bottom 58a of the bottom thereof and has a pressure chamber hole 85 which is coaxial with the through-hole 57 and which has one stage in the conveying direction 5 tapered to an overflow bore 86 so that an annular end face 87 is formed.
  • the pressure chamber hole 85 and the through hole 87 define a pressure chamber 88 which is the drive end closed by a spherical valve body 64 and the nozzle side in the transfer trömbohrung S 86 opens.
  • valve body 64 rests spring-loaded on the radial inner edges of the ribs 63 with a compression spring 89, the compression spring 89 being supported at one end on the valve body 64 and at the other end on the annular end face 87 of the guide cylinder 59.
  • the carrier part 81 is axially set against the pressure chamber end part 80 and also has a multiply stepped through bore 90, which initially tapers in the conveying direction 5 and then widens, so that a pressure holding chamber 91 is formed, in which the pressure valve 82 is arranged on the pressure chamber side.
  • the standing pressure valve 82 ensures a certain minimum pressure in the medium in the pressure holding chamber 91 and opens in the conveying direction 5 as soon as a pressure higher than the standing pressure prevails in the pressure chamber 88.
  • the spray nozzle element 83 has an axial through bore 92 in which the nozzle needle 84 is axially displaceably mounted.
  • the through hole 92 has düsenend character a flared sealing seat 93, which is, you tend ⁇ closed by a düsenend constitutionalen valve disc 94, which is a ⁇ part connected to a shank of the nozzle needle 84th
  • the nozzle needle 84 is seated in a known manner via a compression spring 95 and a needle plate 96 biased against the conveying direction 5 in the through hole 92, the pressure chamber side, tapered end of the nozzle element 83, the compression spring 95 and part of the nozzle needle shaft in the nozzle-side extension the through hole 90 of the carrier part 81 protrude.
  • the extension of the through bore 90 on the nozzle side is connected to the through bore 92 via an overflow bore 97.
  • the device 1 has a uniform anchor device 100 consisting of an anchor support element 101, e.g. a delivery piston tube, and a first bottom-side anchor element 102 and at a distance D (FIG. 2) spaced apart from the first anchor element 102, a second pressure element-side anchor element 103 of the same type.
  • an anchor support element 101 e.g. a delivery piston tube
  • a first bottom-side anchor element 102 and at a distance D (FIG. 2) spaced apart from the first anchor element 102, a second pressure element-side anchor element 103 of the same type.
  • the anchor support element 101 is, for. B. formed as a delivery piston tube, which is an essentially hollow cylindrical, elongated body which is axially displaceable and radially positive with a bottom end 104 in the bearing bore 20 of the guide piece 18 and the armature chamber 41 with an end 105 in the bearing bore 62 on the pressure chamber side of the guide cylinder 59 is seated.
  • the end 104 protrudes a little into the bottom cavity 19, the end 105 being approximately flush with the end of the bearing bore 62 of the guide cylinder 59 on the pressure chamber side and being a distance from the valve body 64 resting on the ribs 63.
  • the armature support element 101 has an axial through bore 106, which is flared at both ends in the manner of a phase.
  • the chamfering of the armature carrier element 101 on the pressure chamber side forms a valve seat for the valve body 64, so that the armature carrier element 101 and the valve body 64 form a valve with which the armature chamber 41 can be hydraulically separated from the pressure chamber 88.
  • the anchor elements 102, 103 are located in the anchor space and are each essentially in the form of a cylindrical ring disk and each have a central bore 107 or 108 which defines the central longitudinal axis
  • the anchor elements 102, 103 sit with the bores 107, 108 firmly on the anchor support element 101 and have an outer diameter which is slightly smaller than the inner diameter of the anchor cylinder sleeves 22, 26, 32, so that a radial clearance 109 of the width T is formed.
  • the armature elements 102, 103 are thus axially movable in the armature space 41 with radial play relative to the armature cylinder 35.
  • the armature elements 102, 103 are made of an easily magnetizable material and each have at least one overflow bore 110 running parallel to the center bores 107, 108.
  • the anchor element 102 has a bottom face 110a and a pressure face face 111, and a peripheral surface 112.
  • the end face 111 and the peripheral surface 112 form a peripheral edge 113.
  • the anchor element 103 accordingly has a bottom face 114 and a pressure face face 115 and a peripheral face 116.
  • the end face 115 and the peripheral surface 116 form a peripheral edge 117.
  • the first anchor element 102 rests with its end face 110 on the anchor space side on the guide piece 18.
  • the axial longitudinal extent of the armature element 102 is set up in such a way that it covers the part of the first armature cylinder sleeve 22 bordering the armature space 41 in the axial direction and that between its peripheral edge 113 and the annular web 29 of the second armature cylinder sleeve 26 there is a first axial gap 121 with the gap width S x is present.
  • the second anchor element 103 is spaced at a distance D from the first anchor element 102 and this in the conveying direction
  • the axial overlap of the armature elements 102, 103 and the armature cylinder sleeves 22 and 26 respectively adjacent in the initial state and the ring elements 25 and 31 respectively adjacent in the initial state is selected such that the magnetic flux is optimized.
  • the gap widths S ⁇ r S 2 are advantageously chosen to be smaller than the longitudinal extension, in particular smaller than half the longitudinal extension of the ring elements 25, 31.
  • the armature cylinder sleeves 26, 32 each form a fixed yoke element relative to the axially movable armature elements 102, 103, i.e. the fixed magnetic counterpart to the armature elements 102, 103.
  • the armature cylinder sleeves 22 and 26 each form guide elements for the magnetic flux for the armature elements 102 and 103 arranged adjacent in the starting position.
  • magnetic field lines 130 surrounding the coil body are formed in a toroidal manner (FIG. 3).
  • the regions of the armature elements 102 and 103 (end faces 111 and 115) and the armature cylinder sleeves 26 and 32 (ring webs 29 and 34) lying opposite each other at the said narrow points are magnetized with opposite polarity, so that static magnetic forces F M1 and F M2 the anchor element 102 or the anchor element 103 act.
  • the anchor elements 102, 103 thus represent anchors in the sense of the above definition and the anchor cylinder sleeves 26, 32 yoke elements in the sense of the above definition.
  • the total static magnetic force F M F M1 + F M2 , which acts on the armature device 100, is considerably higher than the resulting static one with the same use of electrical energy due to the above-described magnetic series connection of the armature elements 102, 103 and the corresponding yoke elements 26, 32 Magnetic force in an anchor device which has only a singular anchor element.
  • the work performed by the anchor device 100 over a certain distance H along a stroke direction 123 is correspondingly higher.
  • the gaps 121 and 122 extend in the working direction (stroke direction 123) of the armature device 100.
  • the width S x and S 2 of this column determine the size of the static magnetic forces currently occurring between the armature elements 102, 103 and the yoke elements (armature cylinder sleeves 26, 32), which perform work along path H of the anchor device 100. In this respect, they represent working gaps.
  • the gaps 109 extend with the width T perpendicular to the working direction (lifting direction 123) of the armature device 100. No magnetic magnetic forces occur.
  • these gaps 108 represent undesirable "magnetic resistances" and are referred to as so-called “parasitic gaps”.
  • a minimization of the width T of this parasitic column 109 is desirable, but tolerances that are unavoidable in terms of production engineering set limits.
  • the enlargement of the working gap area was achieved by a magnetic series connection of at least two armature yoke arrangements, so that at least two working gaps 121, 122 are formed. Furthermore, the moment on an anchor element 102, 103 of an anchor yoke arrangement (102, 26; 103, 34) depends on the width S of the current working column 121, 122, so that the static magnetic forces on the anchor elements 102, 103 over the stroke path H are changeable.
  • the force profile of the total force F M can be influenced via the stroke path H of the anchor device 100 via the choice of the output gap widths S 1 # S 2 , and it can thus be influenced in a simple manner, as described below, for example the spray characteristics, the pressure profile, the maximum injection volume flow or similar characteristics of the device 1. It is, of course, within the scope of the invention to select the outlet gap widths S 1 and S 2 to be the same or different sizes.
  • the anchor elements 102, 103 can be arranged on the anchor support element 101 so that they can be fixed in the axial direction.
  • a device 1 according to the invention can be used with simple means in addition to a drastically higher energy utilization of the electrical energy expended, and also an increased variability of the device 1 with regard to various characteristic parameters of a generic device.
  • the coil 47 is de-energized, the armature device 100 is located in its bottom side Starting position and the valve body 64 is seated on the ribs 57a. There is a distance between the armature support element 101 and the valve body 64.
  • the medium to be pumped or sprayed is supplied by the feed device 66, preferably pressurized with a pre-pressure, and passes through the transverse bore 71, the flood bore 70 and the bores 110 and 21 into the armature space 41 and the floor cavity 19 and into the through bore 106. Excess medium flows through the bore 74 and the drain device 73, so that the armature chamber 41 can be flushed with fresh medium.
  • a force F M acts on the armature device 100, which accelerates the armature device 100 in the conveying direction 5 with almost no resistance, wherein it stores kinetic energy.
  • the anchor device 100 suddenly hits the valve body 64 with its end 105 on the pressure chamber side.
  • the pressure chamber 88 is hydraulically separated from the anchor chamber 41 and the stored kinetic energy of the anchor device 100 hits that in front of the anchor carrier element 101 medium in the pressure chamber 88 transmitted in the form of a pressure surge.
  • the pressure surge propagates through the medium and, overcoming the stationary pressure valve 82, reaches the nozzle outlet.
  • the check valve 69 prevents the pressure surge from escaping into the feed device 66. When exceeding one Predeterminable spray pressure opens the nozzle needle 84 of the spray nozzle element 83.
  • the pressure surge delivery or spraying of the medium is followed by a displacing delivery or spraying of the medium when the armature device 100, in particular the armature carrier element 101 in the pressure chamber 88 is moved further in the conveying direction 5.
  • the armature devices 100 and the valve body 64 reach their starting position via their compression springs 120 and 89, respectively.
  • the sprayed-off quantity of media is fed to the pressure chamber 88 via the feed device 66 under pre-pressure.
  • the flow paths for the conveying or sprayed medium and the valve devices are for those for conveying or spraying free-flowing media, e.g. dusty, granular, granular or powdery media or solids-added fluids, e.g. Mud set up.
  • free-flowing media e.g. dusty, granular, granular or powdery media or solids-added fluids, e.g. Mud set up.
  • the spray nozzle device 83 can, of course, be dispensed with or, as required, by a e.g. the check valve device similar to the standing pressure valve 82 are replaced.
  • a separate drive magnet coil is assigned to each armature yoke arrangement, which can also be designed to be separately electrically controllable, if necessary.
  • the coils are expediently at an axial distance from one another which corresponds to that between the armature cylinder sleeves.
  • the armature support element 101 can be used to reduce the magnetic losses Area of the anchor elements 102, 103 made of a magnetic non-conductor, such as stainless steel, and in the pressure area end area made of an impact-resistant material. This prevents an undesired course of the magnetic field lines 130 via the armature carrier element 101.
  • the scope of the invention also includes a device for conveying and / or spraying free-flowing media, which according to the energy storage principle, e.g. works with resistance accelerated and suddenly braked medium, and is provided with a drive device with a multiple anchor-yoke arrangement.
  • a device 1 according to the invention is designed as a double-acting device for conveying and / or spraying flowable media, in particular fluids, in accordance with WO 96/34195.
  • the ring elements 25, 31 made of magnetically non-conductive material can also be designed as air gaps. It is also within the scope of the invention e.g. to design the support base tube wall 44 of the coil support as an anchor cylinder from a succession of magnetically conductive and magnetically non-conductive sleeve or ring elements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)

Abstract

L'invention concerne un dispositif permettant de refouler et/ou de pulvériser des substances coulantes, notamment des fluides, qui fonctionne selon le principe de l'accumulation d'énergie et se présente sous forme de pompe à piston alternatif à commande électromagnétique avec au moins un dispositif d'armature (100) comme élément d'entraînement. Ledit dispositif d'armature (100) comporte au moins deux éléments d'armature (102,103) et des éléments de culasse (26,32) correspondants sur le plan magnétique sont associés aux deux éléments d'armature (102,103).
EP00956307A 1999-08-11 2000-07-26 Dispositif pour refouler et/ou pulveriser des substances coulantes, notamment des fluides Withdrawn EP1203152A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19937988 1999-08-11
DE19937988A DE19937988A1 (de) 1999-08-11 1999-08-11 Vorrichtung zum Fördern und/oder Abspritzen von fliessfähigen Medien, insbesondere von Fluiden
PCT/EP2000/007210 WO2001012976A1 (fr) 1999-08-11 2000-07-26 Dispositif pour refouler et/ou pulveriser des substances coulantes, notamment des fluides

Publications (1)

Publication Number Publication Date
EP1203152A1 true EP1203152A1 (fr) 2002-05-08

Family

ID=7918013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00956307A Withdrawn EP1203152A1 (fr) 1999-08-11 2000-07-26 Dispositif pour refouler et/ou pulveriser des substances coulantes, notamment des fluides

Country Status (6)

Country Link
US (1) US7093778B1 (fr)
EP (1) EP1203152A1 (fr)
JP (1) JP2003507619A (fr)
AU (1) AU6829700A (fr)
DE (1) DE19937988A1 (fr)
WO (1) WO2001012976A1 (fr)

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Publication number Priority date Publication date Assignee Title
US7537437B2 (en) * 2004-11-30 2009-05-26 Nidec Sankyo Corporation Linear actuator, and valve device and pump device using the same
US8327827B2 (en) * 2007-10-31 2012-12-11 Brp Us Inc. Fuel-injected engine and method of assembly thereof
DE102007055183A1 (de) * 2007-11-19 2009-05-20 Robert Bosch Gmbh Kompakte Einspritzvorrichtung mit zwei Ankern
DE102007058955A1 (de) * 2007-12-07 2009-06-10 Robert Bosch Gmbh Kompakte Einspritzvorrichtung mit zwei Ankern
DE102008010073B4 (de) * 2008-02-19 2010-10-21 Thomas Magnete Gmbh System und Verfahren zum Dosieren eines Fluids
JP5658968B2 (ja) * 2010-10-15 2015-01-28 日立オートモティブシステムズ株式会社 電磁駆動型の吸入弁を備えた高圧燃料供給ポンプ
CN102095013B (zh) * 2011-03-01 2012-11-14 西安陕鼓动力股份有限公司 一种耐高污染电液伺服阀的驱动装置
CN102221108B (zh) * 2011-05-11 2013-02-27 陈国顺 自保式电动电磁动双用电磁头
DE102011111926A1 (de) 2011-08-31 2013-02-28 Thomas Magnete Gmbh Elektromegnetische Pumpe
JP5768737B2 (ja) * 2012-02-14 2015-08-26 株式会社デンソー リニアソレノイド
JP5768736B2 (ja) * 2012-02-14 2015-08-26 株式会社デンソー リニアソレノイド
DE102013112306A1 (de) * 2013-11-08 2015-05-13 Pierburg Gmbh Magnetpumpe für ein Hilfsaggregat eines Fahrzeugs sowie Verfahren zur Steuerung einer Magnetpumpe für ein Hilfsaggregat
CN110307375A (zh) * 2018-03-27 2019-10-08 浙江盾安机械有限公司 一种电磁阀及空调系统
CN110307376A (zh) * 2018-03-27 2019-10-08 浙江盾安机械有限公司 一种电磁阀及空调系统
KR20200059343A (ko) * 2018-11-20 2020-05-29 현대자동차주식회사 엔진의 연료 인젝터
CN109718955B (zh) * 2019-03-08 2024-02-27 九牧厨卫股份有限公司 一种超薄自动除垢花洒
EP3758028B1 (fr) * 2019-06-24 2023-02-15 Otis Elevator Company Actionneur
JP7381243B2 (ja) * 2019-08-05 2023-11-15 カヤバ株式会社 ソレノイド、電磁弁、及び緩衝器
CN114109806B (zh) * 2021-11-26 2022-12-13 深圳华星恒泰泵阀有限公司 流量可调的电磁泵
CN114526342B (zh) * 2022-01-13 2023-09-08 中科首望无水染色智能装备(苏州)有限公司 一种长程电磁密封闪爆装置及工作方法

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Also Published As

Publication number Publication date
DE19937988A1 (de) 2001-02-15
JP2003507619A (ja) 2003-02-25
AU6829700A (en) 2001-03-13
US7093778B1 (en) 2006-08-22
WO2001012976A1 (fr) 2001-02-22

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