EP2828517A1 - Élément structural enrobé par extrusion doté d'un labyrinthe d'étanchéité - Google Patents

Élément structural enrobé par extrusion doté d'un labyrinthe d'étanchéité

Info

Publication number
EP2828517A1
EP2828517A1 EP13706215.4A EP13706215A EP2828517A1 EP 2828517 A1 EP2828517 A1 EP 2828517A1 EP 13706215 A EP13706215 A EP 13706215A EP 2828517 A1 EP2828517 A1 EP 2828517A1
Authority
EP
European Patent Office
Prior art keywords
groove
insert
encapsulation
component
undercut
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Withdrawn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
EP13706215.4A
Other languages
German (de)
English (en)
Inventor
Ralf Kromer
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 EP2828517A1 publication Critical patent/EP2828517A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0056—Provisional sheathings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0053—Producing sealings
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/166—Selection of particular materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C2063/006—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor of surfaces having irregularities or roughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8046—Fuel injection apparatus manufacture, repair or assembly the manufacture involving injection moulding, e.g. of plastic or metal
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet

Definitions

  • the present invention relates to a component which is encapsulated with a further material. Furthermore, the invention relates to a method for manufacturing a molded component and a fuel injection device for an internal combustion engine, which comprises an overmolded component according to the invention.
  • the component according to the invention according to claim 1 comprises an insert and an encapsulation.
  • the encapsulation extends at least partially around the insert. In order to prevent the ingress of gaseous or liquid media between the insert and the encapsulation, this has
  • the groove is further at least partially filled by the encapsulation, so as to seal the insert against the encapsulation.
  • Encapsulation improved on the insert Due to this anchoring of the encapsulation in the insert is also at different
  • the groove is designed spirally. In this way, the manufacturing process is simplified because the spiral shape can be produced in one step.
  • the groove is closed in itself, in particular annular, is executed.
  • a plurality of grooves are arranged parallel to each other. Therefore, this variant allows an optimal, especially for small areas to be sprayed
  • the undercut is introduced into at least one of the flanks of the groove such that the flank and the bottom surface of the groove occupy an acute angle in a sectional view.
  • both flanks of the groove form an acute angle with the bottom surface.
  • the bottom surface of the groove need not necessarily be formed planar, but can be provided as an angled arrangement, in particular with two directed to Nutau type of the bottom surface. With such an angled arrangement, the anchoring of the encapsulation is improved in the insert and thus increases the tightness.
  • the groove is completely filled by the encapsulation. Since all surfaces of the groove are thus covered by the encapsulation, the achievable tightness is maximized.
  • the insert is a
  • the insert is made of a metallic material.
  • the encapsulation is preferably made of a plastic.
  • the basic shape of a metallic insert can be extended by the plastic extrusion easy and inexpensive.
  • the invention relates to a method for producing an overmolded component, which comprises the following steps: As starting point, an insert part is provided into which a groove is introduced. The groove has an undercut on at least one flank. Subsequently, the insert is overmolded with a further material, wherein the encapsulation at least partially fills the introduced groove. The material is also injected into the undercuts of the groove, whereby the hardened
  • Encapsulation is anchored to the insert. Therefore, this method is a simple manufacturing method, can be made with the densely overmolded components.
  • the groove is spirally or annularly introduced into the lateral surface of the insert.
  • the spiral shape has the advantage, in particular with long grooves, that it can be produced in a continuous production step.
  • the ring shape is an easy-to-manufacture alternative, which can be preferably applied to small over-molded lengths. It is preferably provided that a plurality of annular grooves parallel to each other in the
  • Inserted insert wherein the tool has a blade offset, which corresponds to one or more groove intervals.
  • a blade offset which corresponds to one or more groove intervals.
  • the invention relates to a fuel injection device for a
  • Fuel injection device a device according to the invention, as described above.
  • the component according to the invention is advantageously used in the fuel injection device, since a component is required here, which has a plastic extrusion coating, wherein the plastic extrusion always has to lie tightly against the base part. In this case, the component is exposed to large temperature fluctuations, which, however, must not affect the tightness between the base part and encapsulation.
  • Figure 1 is a schematic view of the device according to a
  • FIG. 2 shows a schematic view of a groove of a component according to the preferred embodiment of the invention
  • FIG. 3 is an enlarged view of a portion of the groove of FIG. 2;
  • Figure 4 is a schematic representation of a cutting operation with a tool for introducing the groove in an insert according to the preferred embodiment of the invention.
  • FIG. 5 is a schematic representation of an injection valve
  • FIG. 1 shows a sectional view of the component 1 according to the invention, which comprises an insert part 2 and an encapsulation 3.
  • the insert 2 is preferably a rotary part made of a metallic material, while the encapsulation 3 is preferably made of a plastic.
  • a groove 4 on the insert part 2 is present. This groove 4 may either have a spiral shape, or be closed annular.
  • Encapsulation 3 and insert 2 a secure anchoring and thus increased tightness between insert 2 and encapsulation 3 achieved.
  • the component 1 is preferably used in an injection valve 100.
  • FIG. 2 shows an overview of the groove 4 according to the invention inside the insert 2.
  • the groove 4 has a spiral shape with a first end 41 and a second end 42. Furthermore, the groove 4 on two flanks on an undercut 8, wherein at the first end 41 and the second end 42, the undercut 8 is only present on a surface.
  • Figure 3 shows an enlarged view of the groove 4. It can be seen that the groove 4 has a first edge 5 and a second edge 6. Furthermore, the groove 4 has a bottom surface 7 bent in the direction of the groove outside.
  • Floor surface therefore has a first region 71 and a second region 72, which occupy an angle ⁇ to each other.
  • the angle ⁇ assumes a value of 120 °.
  • An undercut 8 was attached to both the first flank 5 and the second flank 6 of the groove 4.
  • the undercut 8 results in a first angle ⁇ between the first flank 5 and the first region 71 of the bottom surface 7 of the groove 4.
  • a second angle ⁇ results between the two second edge 6 and the second region 72 of the bottom surface 7.
  • the two angles ⁇ and ß are preferably acute angle, in particular assume a value of 60 °.
  • Figure 4 shows the spatial representation of a section of the insert element 2 with the groove according to the invention 4.
  • a tool 80 is additionally shown, which has a cutting offset of a groove length. With such a tool, it is therefore possible to produce a two-sided undercut of the groove 4.
  • a first cutting edge 9 of the tool 80 produces the first undercut 8 on the first flank 5 of the groove 4.
  • a second cutting edge 10 of the tool 9 produces the undercut 8 on the second flank 6 of the groove 4.
  • the tool 80 is ideally used to make a spiral groove. It can be seen that in this way the groove 4 can be introduced very easily and inexpensively together with the undercuts 8 on the first flank 5 and the second flank 6. Subsequently, plastic can be injected into the groove 4 thus produced, so that the encapsulation 3 of the insert 2 is anchored in the groove 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un élément structural présentant une pièce d'insertion (2) et un surmoulage (3) qui s'étend au moins en partie autour de la pièce d'insertion (2), ladite pièce d'insertion (2) comportant au moins une rainure (4) et ladite rainure (4) présentant une contre-dépouille (8) au niveau d'au moins un flanc (5, 6) et le surmoulage (3) remplissant au moins en partie ladite rainure (4).
EP13706215.4A 2012-03-19 2013-02-18 Élément structural enrobé par extrusion doté d'un labyrinthe d'étanchéité Withdrawn EP2828517A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012204302A DE102012204302A1 (de) 2012-03-19 2012-03-19 Umspritztes Bauelement mit einem Dichtlabyrinth
PCT/EP2013/053210 WO2013139546A1 (fr) 2012-03-19 2013-02-18 Élément structural enrobé par extrusion doté d'un labyrinthe d'étanchéité

Publications (1)

Publication Number Publication Date
EP2828517A1 true EP2828517A1 (fr) 2015-01-28

Family

ID=47750648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13706215.4A Withdrawn EP2828517A1 (fr) 2012-03-19 2013-02-18 Élément structural enrobé par extrusion doté d'un labyrinthe d'étanchéité

Country Status (7)

Country Link
US (1) US20150060574A1 (fr)
EP (1) EP2828517A1 (fr)
JP (1) JP2015510989A (fr)
KR (1) KR20140135991A (fr)
CN (1) CN104246206A (fr)
DE (1) DE102012204302A1 (fr)
WO (1) WO2013139546A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014226304A1 (de) 2014-12-17 2016-06-23 Robert Bosch Gmbh Kolben-Kraftstoffpumpe für eine Brennkraftmaschine
DE102014226316A1 (de) 2014-12-17 2016-06-23 Robert Bosch Gmbh Kolben-Kraftstoffpumpe für eine Brennkraftmaschine
US11376375B2 (en) * 2016-02-08 2022-07-05 Koninklijke Philips N.V. Aerosol generator
CN112180115B (zh) * 2019-07-02 2023-06-30 陆博汽车电子（曲阜）有限公司 一种磁电式轮速传感器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936426A1 (de) * 1998-08-03 2000-04-13 Caterpillar Inc Spule für eine gekapselte Wicklung einer Elektromagnetanordnung
US20090017242A1 (en) * 2007-07-13 2009-01-15 Douglas Weber Methods and systems for forming a dual layer housing
EP2589789A1 (fr) * 2011-11-02 2013-05-08 Robert Bosch Gmbh Injecteur de carburant

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5356079A (en) * 1993-11-23 1994-10-18 Siemens Automotive L.P. Fuel injector snap-lock filter-retainer
CZ194096A3 (cs) * 1995-07-03 1998-09-16 Robert Bosch Gmbh Snímač kmitání s přítlačným pouzdrem
US5820099A (en) * 1997-05-20 1998-10-13 Siemens Automotive Corporation Fluid migration inhibitor for fuel injectors
US6105884A (en) * 1999-09-15 2000-08-22 Delphi Technologies, Inc. Fuel injector with molded plastic valve guides
JP2002083917A (ja) * 2000-06-28 2002-03-22 Noge Denki Kogyo:Kk 表面に突起を有するリードフレーム、リードフレームの製造方法、半導体装置、および、半導体装置の製造方法
JP3929839B2 (ja) * 2001-06-28 2007-06-13 松下電器産業株式会社 電池及び電池パック
DE10310789A1 (de) * 2003-03-12 2004-09-23 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102005033138B4 (de) * 2005-07-15 2017-12-14 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102005037953B4 (de) * 2005-08-11 2016-12-08 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102006020689A1 (de) * 2006-05-04 2007-11-08 Robert Bosch Gmbh Magnetventil mit stoffschlüssiger Ankerverbindung
JP5115295B2 (ja) * 2008-04-11 2013-01-09 株式会社デンソー 半導体装置およびその製造方法
DE102009055087A1 (de) * 2009-12-21 2011-06-22 Robert Bosch GmbH, 70469 Einspritzventil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936426A1 (de) * 1998-08-03 2000-04-13 Caterpillar Inc Spule für eine gekapselte Wicklung einer Elektromagnetanordnung
US20090017242A1 (en) * 2007-07-13 2009-01-15 Douglas Weber Methods and systems for forming a dual layer housing
EP2589789A1 (fr) * 2011-11-02 2013-05-08 Robert Bosch Gmbh Injecteur de carburant

Also Published As

Publication number Publication date
WO2013139546A1 (fr) 2013-09-26
JP2015510989A (ja) 2015-04-13
US20150060574A1 (en) 2015-03-05
DE102012204302A1 (de) 2013-09-19
CN104246206A (zh) 2014-12-24
KR20140135991A (ko) 2014-11-27

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