EP3019736A1 - Géométrie de pointe de poussoir pour soupape de régulation de pression - Google Patents

Géométrie de pointe de poussoir pour soupape de régulation de pression

Info

Publication number
EP3019736A1
EP3019736A1 EP14736826.0A EP14736826A EP3019736A1 EP 3019736 A1 EP3019736 A1 EP 3019736A1 EP 14736826 A EP14736826 A EP 14736826A EP 3019736 A1 EP3019736 A1 EP 3019736A1
Authority
EP
European Patent Office
Prior art keywords
region
valve
plunger
tappet
recess
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Withdrawn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
EP14736826.0A
Other languages
German (de)
English (en)
Inventor
Elmar Vier
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 EP3019736A1 publication Critical patent/EP3019736A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • 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
    • 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
    • F02M63/005—Pressure relief valves
    • F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • F16K31/0665—Lift valves with valve member being at least partially ball-shaped

Definitions

  • the present invention relates to engine technology for vehicles.
  • the present invention relates to pressure control valves for diesel injection systems. More particularly, the present invention relates to a novel
  • Pressure control valves are used, inter alia, in engine technology in the context of diesel engines for the direct injection of fuel.
  • a pressure regulating valve is used in the context of common rail diesel systems.
  • a high pressure pump ensures the maintenance of a fuel pressure in a manifold.
  • a pressure control valve is now provided to adjust and maintain the pressure in the rail depending on the setpoint pressure in the control unit.
  • a valve ball is usually pressed by means of magnetic force in a valve seat to close the valve.
  • Pressure control valves in diesel injection systems based on a common rail also known as pressure control valve (PCV) are used to set and limit the rail pressure.
  • PCV pressure control valve
  • the basic construction contains a valve seat or a valve body, which by a spherical
  • Closing element the valve ball
  • the valve ball is actuated by a valve stem guided in the valve stem, which is part of a magnetic circuit, through the energization of which
  • FIGS la, b show the schematic structure of a conventional pressure control valve.
  • Pressure control valve 4 has a plunger element 2, which has a plunger tip 14 on a first side 2b, which presses a valve ball 6 into a valve seat 24 and thereby closes the pressure control valve 4.
  • the plunger element 2 itself has an elongate plunger body 2a with a central axis 2d.
  • a drive device 10 is arranged on a second side 2c.
  • Drive device 10 may for example be a magnetic drive, which in the active state, starting from the representation in Figures la, b the
  • valve body 8a is introduced into the valve housing 8b and fixed there, for example, pressed or, as shown in Figure lb, flanged.
  • FIG. 2 a shows a tappet tip 14 with a substantially planar outer surface or end region 22.
  • FIG. 2 b shows a recess 12, which conventionally has a circular depression with a defined radius
  • FIG. 3a shows the original geometry of a flat-ground plunger tip with the valve ball, which permits a radial tolerance compensation, but is not noise-optimized.
  • the valve ball 6 lies substantially at a contact point on the outer surface 22 of the plunger tip 14.
  • 3 b shows a "ball-in-ball" constellation which offers noise advantages, but causes a change in the axial position due to the ball surface of the recess when the radial play of the components is compensated. wherein regularly the radius of the recess 12, at least slightly, is formed larger than the radius of the valve ball 6. This also provides a substantially point-shaped support of the valve ball 6 on or in the recess 12.
  • valve ball 6 can deflect radially, thus to the left or to the right in FIG. 3a, without a length difference in the axial direction occurring and without substantially influencing the transmission of an axial force, in FIG. 3a, a downward force.
  • the valve ball 6 can also move slightly to the left or to the left.
  • One aspect of the present invention can thus be seen to provide a plunger element for a pressure regulating valve that is adapted to compensate for inaccuracies in the radial direction to a certain extent without changing the axial position.
  • a tappet member for a pressure regulating valve, a pressure regulating valve for a vehicle, especially an automobile, a motor element for a vehicle and a vehicle, in particular automobile according to the independent
  • valve body, disc and the recess in the valve housing which receives these parts, regularly flat bearing surfaces, which are perpendicular to the main axis of the valve.
  • this is also ground flat and thus perpendicular to the main axis, so that a radial play of the plunger element produces no effect on the axial lengths.
  • the plunger tip can be impressed prior to assembly (see FIG. This embossing has a slightly larger diameter than the valve ball and also improves the noise behavior of a pressure control valve.
  • the radial clearance of the plunger due to the circular surface of the recess in the plunger tip also affects in the axial direction, which can undesirably change the balance of power in the magnetic circuit.
  • a plunger element is now provided which is designed to compensate for radial play and for optimized noise behavior
  • Valve body and valve body should be designed so that a radial clearance between the components is minimized in the context of cost-neutral measures.
  • the tappet tip is now not spherical, but pre-embossed with a combined geometry, so that no axial effects are effective within an existing radial clearance.
  • radial play compensation and noise behavior can be combined and optimized.
  • the recess in the plunger tip on a first and a second region Both areas may be arranged concentrically with each other and in particular with respect to the center axis of the plunger element. In the first area this is essentially as a flat surface perpendicular to
  • the first region has a possibility of the valve ball a radial To provide compensation or a radial movement possibility, without this on the axial position of the plunger element or the plunger tip influence.
  • the valve ball can thus deviate on the flat surface of the first area substantially free laterally, without affecting the axial position of the plunger element.
  • Area adjacent area essentially forms a suitable transition region between the first area and the actual
  • This second region forms a suitable transition between the first region and the outer surface.
  • a surface configuration of the second region may be e.g. as an inclined plane, a truncated cone portion, a suitably curved surface, for example the surface of a spherical shape, be formed.
  • the surface of the second region preferably has a radius, comparable to the valve ball, possibly also slightly larger.
  • the spherical surface may also have a radius greater than that
  • Radius of the valve ball is, in particular significantly larger, have.
  • the nominal size, not the tolerance, of the outer diameter of the valve body can be selected such that the maximum positive fit is 0 mm.
  • the minimum fit is slightly negative, whereby the valve body is essentially to be pressed into the valve housing and thus is always arranged centrally in the recess of the valve housing. Furthermore, it can be checked whether a production of the recess in
  • Valve housing in one clamping with the central guide bore of the
  • Tappet is possible, thus can be generated in the same step, which may account for more radial tolerances on the valve body.
  • a possibly remaining radial clearance can now be determined constructively and used as the basis for the geometry of a stamping tool for the plunger tip of the plunger element.
  • the first region thus preferably has a dimension which is sufficient to compensate for an existing radial play such that an axial position of the tappet element is not influenced or changed in the radial play.
  • the recess of the plunger tip can now be preferred as a combination of a central, circular, flat flattening (first area) with a Ball (similar) form (second area) may be formed as a stamping geometry.
  • first area central, circular, flat flattening
  • Ball (similar) form second area
  • Such a combination of a substantially flat, in particular formed perpendicular to the central axis of the plunger element level and a ball-like configuration of the second region is hereinafter referred to as a flat round embossing.
  • FIGS. 2a, b show exemplary embodiments of a plunger tip 14 of a conventional pressure control valve according to the present invention
  • Figure 4 shows an exemplary embodiment of the shape of the recess of a plunger tip according to the invention.
  • FIG. 4 an exemplary embodiment of the shape of the depression of a tappet tip according to the invention is shown.
  • Tappet tip 14 shows in detail a stamping geometry with a flat-round embossing, which is formed in diameter such that the contact between the valve ball and plunger tip 14 in the recess 12 over the remaining
  • a radial movement 20a essentially a movement 18a that does not influence the axial position of the plunger element 2 is possible along the plane of the region 16a.
  • a second region 16b is arranged, by way of example the geometry is continued in a manner comparable to that of a ball embossing.
  • connection geometry of the second region 16b can be performed, for example spherical or progressive, depending on which boundary conditions of the ball stamping to be maintained.
  • the second area 16b takes place
  • the specific geometric configuration of the surface of the second region 16b of the recess 12 dependent movement 18b which in Figure 4 by way of example has a circular course and thus a movement about a center with radius R of the recess 12 in the second region 16b.
  • a movement in the second region 16b therefore, not only a radial movement 20a but also combined with a further movement in the axial direction 20b is carried out, whereby the axial position of the tappet element and thus the design of the drive device 10, in particular a magnetic circuit, changes.
  • the flat circular embossing is exaggerated in FIG. 4, in particular based on the fact that a radius of the second region 16b is substantially only slightly different from the radius of the valve ball 6. Macroscopically, a situation similar to that of the ball embossing (see Figure 3b) results in the second region 16b, whereby the noise-inhibiting effect and also the anticipated setting of the tappet element are retained. In the area of the radial clearance of the arrangement, however, there is no axial effect due to the flattening in the region 16a.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Golf Clubs (AREA)

Abstract

L'invention concerne un élément de poussoir (2), en particulier pour une soupape de régulation de pression (4). Cet élément est pourvu d'un corps de poussoir (2a), en particulier allongé, comprenant une première face (2b), une seconde face (2c) et un axe médian (2d). Une pointe de poussoir (14) est formée sur la première face (2a) et conçue pour être en contact avec une bille de soupape (6). Un dispositif d'entraînement (10) pour l'élément de poussoir (2) peut être disposé sur la seconde face (2c). La pointe (14) du poussoir présente un creux (12) destiné à être en contact avec une bille de soupape (6). L'invention est caractérisée en ce que le creux (12) présente une première zone (16a) et une seconde zone (16b), les deux zones (16a, b) étant disposées de manière concentrique par rapport à l'axe médian (2d). Dans la première zone (16a), une bille de soupape (6) est mobile (18a) sur la surface (22a) du creux (12) sensiblement dans la direction radiale (20a) perpendiculairement à l'axe médian (2d). Dans la seconde zone (16b), une bille de soupape (6) est mobile sur la surface (22b) du creux (12) en effectuant sensiblement un mouvement combiné à la fois dans la direction radiale (20a) et dans la direction axiale (20b).
EP14736826.0A 2013-07-09 2014-07-08 Géométrie de pointe de poussoir pour soupape de régulation de pression Withdrawn EP3019736A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013213419.3A DE102013213419A1 (de) 2013-07-09 2013-07-09 Neuartige Stößelspitzen-Geometrie für ein Druckregelventil
PCT/EP2014/064622 WO2015004140A1 (fr) 2013-07-09 2014-07-08 Géométrie de pointe de poussoir pour soupape de régulation de pression

Publications (1)

Publication Number Publication Date
EP3019736A1 true EP3019736A1 (fr) 2016-05-18

Family

ID=51162814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14736826.0A Withdrawn EP3019736A1 (fr) 2013-07-09 2014-07-08 Géométrie de pointe de poussoir pour soupape de régulation de pression

Country Status (6)

Country Link
US (1) US20160153319A1 (fr)
EP (1) EP3019736A1 (fr)
JP (1) JP2016520766A (fr)
CN (1) CN105358820A (fr)
DE (1) DE102013213419A1 (fr)
WO (1) WO2015004140A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014216173B4 (de) * 2014-08-14 2016-06-30 Continental Automotive Gmbh Kraftstoffhochdruckpumpe und Druckbeeinflussungseinrichtung
DE102016219151A1 (de) 2016-10-04 2018-04-05 Volkswagen Aktiengesellschaft Verfahren zum Herstellen einer Kalotte in einer Ventilnadel eines Ventils
DE102018205599A1 (de) * 2018-04-12 2019-10-17 Robert Bosch Gmbh Druckbegrenzungsventil

Citations (1)

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JP2008175085A (ja) * 2007-01-16 2008-07-31 Denso Corp 燃料噴射装置のプレッシャリミッタ

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DE3537435A1 (de) * 1985-10-21 1987-04-23 Rexroth Mannesmann Gmbh 3/2-wege-magnetventil
US4997004A (en) * 1986-01-29 1991-03-05 Bkm, Inc. High cycle solenoid valve
JPH03199789A (ja) * 1989-12-28 1991-08-30 Aisin Aw Co Ltd 電磁弁
JP3294382B2 (ja) * 1992-10-30 2002-06-24 株式会社デンソー 流量制御弁
JP2859504B2 (ja) * 1993-01-28 1999-02-17 本田技研工業株式会社 複合加工装置
US5785297A (en) * 1996-07-16 1998-07-28 Millipore Corporation Valve mechanism
JP2001208233A (ja) * 2000-01-31 2001-08-03 Aisin Seiki Co Ltd 電磁弁
JP2004324740A (ja) * 2003-04-23 2004-11-18 Mitsubishi Electric Corp 比例電磁弁及びその制御方法
US7367636B2 (en) * 2005-02-16 2008-05-06 Bendix Commercial Vehicle Systems, Llc Solenoid armature with integrated spherical soft seal
FR2889572B1 (fr) * 2005-08-03 2009-01-30 Eaton Sam Sa Monegasque Electrovanne de regulation de pression a blocs electromagnetique et hydraulique distincts
JP2007092829A (ja) * 2005-09-28 2007-04-12 Toyota Motor Corp 弁
JP2012067811A (ja) * 2010-09-22 2012-04-05 Keihin Corp 流路開閉弁
DE102010049022A1 (de) * 2010-10-21 2012-04-26 Kendrion Binder Magnete Gmbh Hochdruckregelventil
FR2973092B1 (fr) * 2011-03-25 2016-09-02 Bosch Gmbh Robert Dispositif d'obturation, regulateur de pression comportant un tel dispositif, dispositif d'injection diesel comportant un tel regulateur, moteur diesel et vehicule comportant un tel moteur

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008175085A (ja) * 2007-01-16 2008-07-31 Denso Corp 燃料噴射装置のプレッシャリミッタ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015004140A1 *

Also Published As

Publication number Publication date
DE102013213419A1 (de) 2015-01-15
WO2015004140A1 (fr) 2015-01-15
US20160153319A1 (en) 2016-06-02
CN105358820A (zh) 2016-02-24
JP2016520766A (ja) 2016-07-14

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