EP1731750B1 - Dispositif avec jonction de perçages - Google Patents
Dispositif avec jonction de perçages Download PDFInfo
- 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
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)
- 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).
- Dispositif suivant la revendication 1, dans lequel les moyens de production de la pression provoquent une déformation plastique produisant des contraintes de pression.
- 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.
- 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.
- 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).
- 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).
- 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).
- Dispositif suivant l'une des revendications 4 à 7, dans lequel l'élément fileté (35) est prévu pour la fixation d'une autre pièce.
- 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.
- Pompe haute pression, en particulier pompe à pistons radiaux, comportant un dispositif suivant l'une des revendications précédentes.
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)
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)
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 |
-
1998
- 1998-11-06 DE DE1998151286 patent/DE19851286C2/de not_active Expired - Fee Related
-
1999
- 1999-11-05 DE DE59914795T patent/DE59914795D1/de not_active Expired - Lifetime
- 1999-11-05 EP EP19990121000 patent/EP0999361B1/fr not_active Expired - Lifetime
- 1999-11-05 EP EP06018655A patent/EP1731750B1/fr not_active Expired - Lifetime
- 1999-11-05 DE DE59914263T patent/DE59914263D1/de not_active Expired - Lifetime
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 |