EP1731750B1 - Dispositif avec jonction de perçages - Google Patents

Dispositif avec jonction de perçages Download PDF

Info

Publication number
EP1731750B1
EP1731750B1 EP06018655A EP06018655A EP1731750B1 EP 1731750 B1 EP1731750 B1 EP 1731750B1 EP 06018655 A EP06018655 A EP 06018655A EP 06018655 A EP06018655 A EP 06018655A EP 1731750 B1 EP1731750 B1 EP 1731750B1
Authority
EP
European Patent Office
Prior art keywords
screw
pressurisation means
bore
tension
solid body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP06018655A
Other languages
German (de)
English (en)
Other versions
EP1731750A2 (fr
EP1731750A3 (fr
Inventor
Christoph Klesse
Hinrich Dr. Krueger
Christian Taudt
Martin Werner
Eckbert Zander
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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 GmbH filed Critical Continental Automotive GmbH
Publication of EP1731750A2 publication Critical patent/EP1731750A2/fr
Publication of EP1731750A3 publication Critical patent/EP1731750A3/fr
Application granted granted Critical
Publication of EP1731750B1 publication Critical patent/EP1731750B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

Definitions

  • the invention relates to a device with a bore intersection
  • Bohrungsschneschneidung having solids has been reduced as far as possible by design changes.
  • Such structural changes include, for example, increasing the intersecting angle between the channels to at least 90 °, decreasing the bore diameter, and rounding the intersecting edge. But such structural changes are not applicable in many cases for a variety of reasons.
  • the object of the invention is therefore to provide a device of the type mentioned, in which the stresses occurring at a Bohrungsverschneidung can be reduced.
  • compressive stresses are introduced at this point by an essentially vertical force applied from the outside to an example, for example, an endangered point.
  • the advantage here is that in a simple manner targeted at the points of critical stress, the stress in the solid can be reduced by an external intervention. This can be done for example by a screw that presses on the channel intersection, thereby reducing the stresses that arise from the internal pressure in the channels and thus the Bohrungsverschneidung be reduced.
  • the introduction of the stresses can be realized both by an elastic, as well as by a plastic deformation.
  • the strength of the solid can be increased in a simple manner.
  • the compensating force can advantageously be used simultaneously for the attachment of certain components.
  • the stresses introduced from the outside can also be introduced by a clamping device in the solid.
  • this type of voltage reduction of critical points is advantageously used in high-pressure pumps, for example in radial piston pumps that compress fuel in common-rail systems to a high pressure of 1,500 bar and more and promote it in a fuel tank.
  • the critical points in high pressure pumps are the high pressure and intersecting fuel lines.
  • the voltage in the intersection of two or more fuel lines in the high-pressure pump is thereby reduced by applying a force from the outside to the housing containing the fuel lines.
  • the type of voltage reduction according to the invention is also used in fuel distributors, which are connected, for example, on the input side with a high-pressure pump and on the output side branching, each with a fuel storage.
  • the strain-relieving force is introduced onto the solid body substantially perpendicular to the plane formed by the respective intersecting bores.
  • FIG. 1 are in a solid state 2 three holes 4, 5, 6 introduced such that they open into one another at a point, the two holes 4 and 6 at an acute angle to each other, forming a blending edge 3.
  • the holes 4, 5, 6 form Channels for a not shown in detail in the drawing, pressurized medium, such as a gas or a liquid. Due to the pressure of the medium, compressive stresses build up in the solid 2, whose maximum occurs at the acute intersecting edge 3 of the bores 4 and 6.
  • a threaded hole 7 is introduced, in which a screw 1 is screwed as a threaded member such that by screwing the screw 1 compressive stresses in the solid 2 arise, which counteract the tensile stresses from the internal pressure of the holes 4, 5, 6 and thereby also at least reduce, if not neutralize, the stress maximum occurring at the intersection edge 3.
  • the force of the screw 1 acts in the region of the vulnerable point (bore intersection) essentially perpendicular to the plane formed by the respective intersecting bores 4, 5, 6 on the solid body 2.
  • the solid 2 is preferably part of a radial piston pump designed as a high-pressure pump.
  • FIG. 2 are two holes 13 and 14 are introduced in a solid 12, which open into each other at a certain angle in the interior of the solid 12.
  • the turn channels forming holes 13 and 14 are also subjected to a pressurized medium, whereby voltages in the solid state 12 are generated, which are at the trapped by the bores 13 and 14 intersecting edge 15 the strongest.
  • a clamping device is provided which consists of a solid body 12 annularly enclosing, rigid clamp body 10, on whose inner side an abutment 16 and on the opposite inner side a continuous threaded hole 17 is arranged. In the threaded hole 17, a screw 11 is screwed.
  • the solid body 12 is such that the connecting axis between the abutment 16 and screw 11 passes perpendicular to the Bohrungsverschneidung through this.
  • the screw 11 is tightened and exerts in conjunction with the abutment 16 a force on the solid 12. Again, the tension at the most critical point is reduced by an external force.
  • the solid body 12 is preferably part of a high pressure pump designed as a radial piston pump.
  • the compensating voltages generated by elastic deformations in the solid state 2 it is in the embodiment according to FIG. 3 the tension achieved by a plastic deformation.
  • channels 23, 24, 25 formed by corresponding bores are introduced in a solid body 22 in such a way that they open into one another at a point from the outside into the interior of the solid body. Starting from this point, the channels 24 and 25 separate at an acute angle to each other and form there an intersecting edge 26.
  • two plastic deformations 20 and 21 are provided, which are corresponding recesses in the parallel to the Holes 23, 24, 25 and mutually parallel end faces 27 and 28 of the solid 22 are formed.
  • the solid 22 is preferably part of a radial piston pump designed as a high-pressure pump.
  • FIG. 4 an embodiment is shown which is preferably used in radial piston pumps for common rail systems application.
  • a solid body such as a housing 30, three holes 31, 32, 33 incorporated. These holes connect the individual cylinders of a fuel pump not shown higher and are under high pressure during operation.
  • the high-pressure outlet of the fuel pump is a Stub 35, which is connected via a bore 34 with the bores 31, 32, 33.
  • the bores 31, 32, 33, 34 open at a certain point into one another, wherein the bores 31 and 32 are arranged at a certain angle to each other and include an intersection edge 36 with.
  • the intersection edge 36 is the location where the maximum stress occurs.
  • the bore 34 continues within the nozzle 35, which is screwed into a threaded bore 37.
  • the nozzle 35 thus serves, on the one hand, as a continuation of the bore 34, for example for the purpose of connecting a high-pressure line, and on the other hand to reduce the stress in the housing 30 and in particular at the intersection edge 36 due to the screwed into the threaded bore 37, serving as a threaded element neck 35th
  • a recess is introduced, which causes a plastic deformation in addition to the elastic deformation of the nozzle 35 and the threaded bore 37, a voltage which generates the voltage generated by the internal pressure in the housing 30 and counteracts in particular at the intersection edge 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Measuring Fluid Pressure (AREA)
  • Fuel Cell (AREA)

Claims (10)

  1. Dispositif comportant un corps solide (2; 12; 22; 30), une intersection d'alésages (3, 4, 5, 6; 13, 14, 15; 23, 24, 25, 26; 31, 32, 33, 34, 36), réalisée dans le corps solide (2; 12; 22; 30) et sur lequel est appliquée une pression interne, et des moyens de production de la pression (1, 7; 10, 11, 16, 17; 35, 37, 38) disposés à l'extérieur sur le corps solide (2; 12; 22; 30), de telle façon que ceux-ci introduisent dans le corps solide (2; 12; 22; 30) une contrainte qui s'oppose à la contrainte produite par la pression interne dans l'intersection d'alésages (3, 4, 5, 6; 13, 14, 15; 23, 24, 25, 26; 31, 32, 33, 34, 36), dans lequel la force du moyen de production de la pression (1, 7; 10, 11, 16, 17; 35, 37, 38), réduisant la contrainte, agit sur le corps solide (2; 12; 22; 30) sensiblement perpendiculairement au plan formé par les alésages s'intersectant (4, 5, 6; 13, 14; 23, 24, 25; 31, 32, 33).
  2. Dispositif suivant la revendication 1, dans lequel les moyens de production de la pression provoquent une déformation plastique produisant des contraintes de pression.
  3. Dispositif suivant l'une des revendications précédentes, dans lequel, comme moyen de production de la pression, est prévu un alésage (7; 37) et des éléments (1; 35) introduits dans celui-ci.
  4. Dispositif suivant l'une des revendications précédentes, dans lequel, comme moyen de production de la pression, est prévu un alésage (7; 37) comportant un filetage dans lequel est vissé un élément fileté (1; 35) produisant une contrainte.
  5. Dispositif suivant l'une des revendications précédentes, dans lequel, comme moyen de production de la pression, est prévu un dispositif de serrage (10, 11; 16, 17).
  6. Dispositif suivant la revendication 5, dans lequel le dispositif de serrage (10) présente un élément fileté (17), une vis vissée à l'intérieur (11) et un contre-palier (16) situé à l'opposé, relié de façon rigide au dispositif de serrage (10), et le corps solide (12) est sollicité sous pression entre la vis (11) et le contre-palier (16).
  7. Dispositif suivant l'une des revendications précédentes, dans lequel les moyens de production de la pression (1; 10, 11, 16; 35, 38) sont disposés de telle façon que la contrainte produite par les moyens de production de la pression (1; 10, 11, 16; 35, 38) est maximale là où la contrainte produite par la pression intérieure de l'intersection d'alésages (3, 4, 5, 6; 13, 14, 15; 23, 24, 25, 26; 31, 32, 33, 34, 36).
  8. Dispositif suivant l'une des revendications 4 à 7, dans lequel l'élément fileté (35) est prévu pour la fixation d'une autre pièce.
  9. Dispositif suivant l'une des revendications précédentes, dans lequel deux des canaux situés à la limite de l'intersection d'alésages (3, 4, 5, 6; 13, 14, 15; 23, 24, 25, 26; 31, 32, 33, 34, 36) se rencontrent suivant un angle aigu.
  10. Pompe haute pression, en particulier pompe à pistons radiaux, comportant un dispositif suivant l'une des revendications précédentes.
EP06018655A 1998-11-06 1999-11-05 Dispositif avec jonction de perçages Expired - Lifetime EP1731750B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998151286 DE19851286C2 (de) 1998-11-06 1998-11-06 Vorrichtung mit Bohrungsverschneidung
EP19990121000 EP0999361B1 (fr) 1998-11-06 1999-11-05 Dispositif avec jonction de perçages

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP19990121000 Division EP0999361B1 (fr) 1998-11-06 1999-11-05 Dispositif avec jonction de perçages
EP99121000.6 Division 1999-11-05

Publications (3)

Publication Number Publication Date
EP1731750A2 EP1731750A2 (fr) 2006-12-13
EP1731750A3 EP1731750A3 (fr) 2006-12-27
EP1731750B1 true EP1731750B1 (fr) 2008-06-25

Family

ID=7886962

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19990121000 Expired - Lifetime EP0999361B1 (fr) 1998-11-06 1999-11-05 Dispositif avec jonction de perçages
EP06018655A Expired - Lifetime EP1731750B1 (fr) 1998-11-06 1999-11-05 Dispositif avec jonction de perçages

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19990121000 Expired - Lifetime EP0999361B1 (fr) 1998-11-06 1999-11-05 Dispositif avec jonction de perçages

Country Status (2)

Country Link
EP (2) EP0999361B1 (fr)
DE (3) DE19851286C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10029425B4 (de) * 2000-06-15 2004-11-18 Siemens Ag Bohrungsanordnung mit einer aus mindestens drei Bohrungen gebildeten Verschneidung sowie Verfahren zu deren Herstellung
DE102009000538A1 (de) 2009-02-02 2010-08-05 Robert Bosch Gmbh Geometrie zur Festigkeitssteigerung bei Bohrungsverschneidungen im Hochdruckbereich
DE102011101770A1 (de) * 2011-05-17 2012-08-02 L'orange Gmbh Anordnung mit einem Festkörper sowie einer darin gebildeten Verschneidung zweier Hochdruck-Fluidkanäle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163561A (en) * 1978-08-15 1979-08-07 Dart Industries Inc. Fatigue resistant fittings and methods of fabrication
GB2296039A (en) * 1994-12-16 1996-06-19 Perkins Ltd Stress reduction at a high pressure fluid passage junction
JP3841369B2 (ja) * 1996-11-30 2006-11-01 臼井国際産業株式会社 コモンレール
CA2230744A1 (fr) * 1997-03-03 1998-09-03 Usui Kokusai Sangyo Kaisha Limited Rampe commune et methode de fabrication
DE19802476A1 (de) * 1998-01-23 1999-07-29 Bosch Gmbh Robert Pumpenanordnung zur Kraftstoffhochdruckversorgung

Also Published As

Publication number Publication date
EP1731750A2 (fr) 2006-12-13
DE59914263D1 (de) 2007-05-03
EP0999361A3 (fr) 2003-12-10
DE59914795D1 (de) 2008-08-07
EP0999361B1 (fr) 2007-03-21
EP0999361A2 (fr) 2000-05-10
DE19851286C2 (de) 2001-05-17
EP1731750A3 (fr) 2006-12-27
DE19851286A1 (de) 2000-05-18

Similar Documents

Publication Publication Date Title
DE19747736C1 (de) Druckspeicher für Kraftstoffversorgungssysteme
WO2018050881A1 (fr) Clapet antiretour, élément de conduite haute pression et pompe à carburant à haute pression
EP1108135B1 (fr) Raccord haute pression pour un systeme d'injection de carburant pour des moteurs a combustion interne
DE102016206456B4 (de) Kombination, umfassend ein Gehäuse und einen Flansch, und Anordnung
EP1442211B1 (fr) Procede pour produire une conduite de reservoir de carburant comprenant une piece de raccordement precontrainte
EP1114273A1 (fr) Raccord et carter, notamment accumulateur de carburant haute pression, presentant un raccord soude de maniere precontrainte, pour un systeme d'injection de carburant de moteurs a combustion interne
EP1918626B1 (fr) Accumulateur pour l'amortissement de pulsations de pression
EP3322903B1 (fr) Cylindre hydraulique à double effet
EP1502022B1 (fr) Tuyau de distribution de carburant pour dispositif d'injection de carburant, en particulier pour des systemes a rail commun
EP1114252A1 (fr) Raccord et carter pour un systeme d'injection de carburant pourvu d'un accumulateur de carburant haute pression
WO2001021955A1 (fr) Reservoir de carburant haute pression
EP1731750B1 (fr) Dispositif avec jonction de perçages
DE202004012473U1 (de) Metallischer Schneidring
EP1117923A1 (fr) Accumulateur haute pression pour carburant
EP2954190B1 (fr) Elément structural pourvu d'alésages haute pression débouchant les uns dans les autres
EP0501363B1 (fr) Raccord de tuyau
DE29521617U1 (de) Rohr mit einem Anschlußabschnitt und Rohrverbindung
DE10309311B4 (de) Kraftstoffhockdruckspeicher
EP3341607A1 (fr) Rampe commune de distribution à haute pression
EP1767440A1 (fr) Joint de connexion comprenant élément porteur, élément en plastique et vis
DE19944247B4 (de) Anschlußeinrichtung für Fluidleitungen
DE29701337U1 (de) Anordnung zur Befestigung eines Gasgenerators, insbesondere eines Rohrgasgenerators in einem Gehäuse, insbesondere in einem Diffusor eines Airbagmoduls
DE10300845A1 (de) Anschlussstutzen für Hochdruckverschraubungen
EP1359317A1 (fr) Dispositif de connexion avec ecrou avec filet à droite et filet à gauche
WO2022207379A1 (fr) Convertisseur à boulon intégré

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AC Divisional application: reference to earlier application

Ref document number: 0999361

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 20061206

AKX Designation fees paid

Designated state(s): DE FR GB IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CONTINENTAL AUTOMOTIVE GMBH

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 0999361

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59914795

Country of ref document: DE

Date of ref document: 20080807

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20090326

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20121130

Year of fee payment: 14

Ref country code: DE

Payment date: 20121130

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20121126

Year of fee payment: 14

Ref country code: GB

Payment date: 20121120

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20131105

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140603

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131105

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59914795

Country of ref document: DE

Effective date: 20140603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131105

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131202