EP0999361A2 - Vorrichtung mit Bohrungsverschneidung - Google Patents
Vorrichtung mit Bohrungsverschneidung Download PDFInfo
- Publication number
- EP0999361A2 EP0999361A2 EP99121000A EP99121000A EP0999361A2 EP 0999361 A2 EP0999361 A2 EP 0999361A2 EP 99121000 A EP99121000 A EP 99121000A EP 99121000 A EP99121000 A EP 99121000A EP 0999361 A2 EP0999361 A2 EP 0999361A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- intersection
- solid
- solid body
- generating means
- tension
- 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.)
- Granted
Links
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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
- a fuel rail is known from which go out from the radial connecting piece. To increase strength becomes the fuel rail in the radial direction or the connecting piece is deformed in the parallel direction.
- the object of the invention is therefore a device of the beginning Specify the type mentioned, in which the occurring tensions be reduced at a intersection can.
- the tension in the solid due to external intervention can be reduced.
- This can be done, for example, by a Screw happen so on the channel intersection presses that thereby the tensions resulting from the internal pressure arise in the channels and thus the intersection of holes, be reduced.
- the introduction of tensions can both by an elastic, as well as by a plastic Deformation can be realized.
- the strength of the solid even with complicated geometries can be easily increased.
- the compensating force advantageously at the same time can be used to fasten certain components.
- the external stresses can also introduced into the solid body by a clamping device become.
- this type of voltage reduction becomes critical Places advantageously used in high pressure pumps, for example in radial piston pumps in common rail systems Compress fuel to a high pressure of 1500 bar and more and pump into a fuel storage.
- the critical Places in high pressure pumps are under high pressure standing and intersecting fuel lines.
- the Tension in the intersection of two or more fuel lines in the high pressure pump it is reduced by externally on the one containing the fuel lines A force is applied to the housing.
- the type of voltage reduction according to the invention is advantageous also used in fuel distributors, for example on the input side with a high pressure pump and on the output side branched to one fuel storage each are.
- FIG. 1 In the embodiment of Figure 1 are in a solid 2 three holes 4, 5, 6 introduced such that they open into one another at one point, the two holes 4 and 6 at an acute angle to each other, an intersection edge 3 are arranged to form.
- the holes 4, 5, 6 form Channels for a not shown in the drawing, medium under pressure, such as a gas or a liquid. Build up through the pressure of the medium Compressive stresses in the solid body 2, the maximum at which sharp intersection edge 3 of the holes 4 and 6 occurs.
- a threaded hole 7 is perpendicular to the intersection of the holes introduced, in which a screw 1 as a threaded element is screwed in that by screwing in screw 1 Compressive stresses arise in the solid body 2, which are the tensile stresses counteract from the internal pressure of the holes 4, 5, 6 and thereby also that which occurs at the intersection edge 3 At least reduce the voltage maximum, if not neutralize it.
- the force of screw 1 acts in the area the endangered area (drilling intersection) essentially perpendicular to the plane of each intersecting Bores 4, 5, 6 are formed on the solid body 2 on.
- the solid body 2 is preferably part of a radial piston pump trained high pressure pump.
- the solid body 12 is such that the Connection axis between abutment 16 and screw 11 vertically leads through this for intersecting holes.
- the screw 11 is tightened and exercises in connection a force on the solid body 12 with the abutment 16.
- the solid body 12 is preferably part of a radial piston pump trained high pressure pump.
- Tensions due to elastic deformations in the solid 2 has been generated, so in the embodiment according to Figure 3, the tension due to a plastic deformation achieved.
- the tension due to a plastic deformation achieved are in a solid 22 channels 23 formed by corresponding bores, 24, 25 introduced such that these from the outside into the interior of the solid lead into one another at one point.
- Outgoing channels 24 and 25 separate from this point at an acute angle to each other and form an intersection edge there 26.
- the tension at the intersection of the holes 26 two plastic deformations are to be reduced 20 and 21 provided as corresponding depressions in parallel to the holes 23, 24, 25 and parallel to each other arranged end faces 27 and 28 of the solid body 22 are trained.
- the solid body 22 is preferably part of a radial piston pump trained high pressure pump.
- FIG. 4 shows an embodiment which is preferred in radial piston pumps for common rail systems finds.
- A serves as the high-pressure outlet of the fuel pump Stub 35, which has a bore 34 with the bores 31, 32, 33 is connected.
- the holes 31, 32, 33, 34 open a certain point in each other, the holes 31 and 32 are arranged at a certain angle to one another and include a blend edge 36.
- the intersection edge 35 is the place where the maximum tension occurs.
- the bore 34 settles inside the nozzle 35 continues, which is screwed into a threaded bore 37 is.
- the nozzle 35 consequently serves as a continuation the bore 34, for example for the purpose of connecting one High pressure line, and on the other hand to reduce voltage 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 35.
- a depression on the surface of the housing 30 which as a plastic deformation in addition to the elastic deformation by the connector 35 and the threaded bore 37 causes a tension that by internal pressure generated voltage in the housing 30 and in particular counteracts 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)
Abstract
Description
Claims (10)
- Vorrichtung mit einem Festkörper (2,12, 22, 30), einer in den Festkörper (2, 12, 22, 30) eingebrachten, mit Innendruck beaufschlagten Bohrungsverschneidung (4, 5, 6, 13, 14, 23, 24, 25, 31, 32, 33, 34) und außen am Festkörper (2, 12, 22, 30) derart angeordneten Druckerzeugungsmitteln (1, 10, 11, 16, 20, 21, 35, 38), daß diese in den Festkörper (2, 12, 22, 30) eine Spannung einbringen, die der von dem Innendruck der Bohrungsverschneidung (4, 5, 6, 13, 14, 23, 24, 25, 31, 32, 33, 34) erzeugten Spannung entgegenwirkt.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Vorrichtung als Radialkolbenpumpe ausgebildet ist.
- Vorrichtung nach Anspruch 1 oder 2, bei der als Druckerzeugungsmittel eine Druckspannungen erzeugende plastische Verformung (20, 21) vorgesehen ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, bei der als Druckerzeugungsmittel eine Bohrung (7, 37) und in diese eingeführte Elemente (1, 35) vorgesehen ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, bei der als Druckerzeugungsmittel eine Bohrung (7, 37)mit einem Gewinde vorgesehen ist, in die ein Gewindeelement (1, 35)eine Spannunng erzeugend eingedreht ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, bei der als Druckerzeugungsmittel eine Klemmeinrichtung (10, 11, 16, 17) vorgesehen ist.
- Vorrichtung nach Anspruch 6, bei der die Klemmeinrichtung (10) ein Gewindeelement (17), eine darin eingedrehte Schraube (11) und ein der Schraube (11) gegenüberliegendes, mit der Klemmvorrichtung (10)starr verbundenes Widerlager (16) aufweist und der Festkörper (12) zwischen Schraube (11)und Widerlager (16) unter Druck angeordnet ist.
- Vorrichtung nach einem der vorherigen Ansprüche, bei der die Druckerzeugungsmittel (1, 10, 11, 16, 20, 21, 35, 38) derart angeordnet sind, daß die durch die Druckerzeugungsmittel (1, 10, 11, 16, 20, 21, 35, 38) erzeugte Spannung am größten ist dort, wo auch die von dem Innendruck der Bohrungsverschneidung (4, 5, 6, 13, 14, 23, 24, 25, 31, 32, 33, 34) erzeugte Spannung am größten ist.
- Vorrichtung nach einem der vorherigen Ansprüche, bei der das Gewindelement (35) zur Befestigung eines weiteren Teils vorgesehen ist.
- Vorrichtung nach einem der vorherigen Ansprüche, bei der zwei der an die Bohrungsverschneidung (4, 5, 6, 13, 14, 23, 24, 25, 31, 32, 33, 34) grenzenden Kanäle im spitzen Winkel aufeinander treffen.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06018655A EP1731750B1 (de) | 1998-11-06 | 1999-11-05 | Vorrichtung mit Bohrungsverschneidung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19851286 | 1998-11-06 | ||
DE1998151286 DE19851286C2 (de) | 1998-11-06 | 1998-11-06 | Vorrichtung mit Bohrungsverschneidung |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06018655A Division EP1731750B1 (de) | 1998-11-06 | 1999-11-05 | Vorrichtung mit Bohrungsverschneidung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0999361A2 true EP0999361A2 (de) | 2000-05-10 |
EP0999361A3 EP0999361A3 (de) | 2003-12-10 |
EP0999361B1 EP0999361B1 (de) | 2007-03-21 |
Family
ID=7886962
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19990121000 Expired - Lifetime EP0999361B1 (de) | 1998-11-06 | 1999-11-05 | Vorrichtung mit Bohrungsverschneidung |
EP06018655A Expired - Lifetime EP1731750B1 (de) | 1998-11-06 | 1999-11-05 | Vorrichtung mit Bohrungsverschneidung |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06018655A Expired - Lifetime EP1731750B1 (de) | 1998-11-06 | 1999-11-05 | Vorrichtung mit Bohrungsverschneidung |
Country Status (2)
Country | Link |
---|---|
EP (2) | EP0999361B1 (de) |
DE (3) | DE19851286C2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10029425A1 (de) * | 2000-06-15 | 2001-12-20 | Siemens Ag | Bohrungsanordnung mit einer aus mindestens drei Bohrungen gebildeten Verschneidung sowie Verfahren zu deren Herstellung |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2296039A (en) * | 1994-12-16 | 1996-06-19 | Perkins Ltd | Stress reduction at a high pressure fluid passage junction |
DE19808807A1 (de) * | 1997-03-03 | 1998-09-24 | Usui Kokusai Sangyo Kk | Verteiler und Verfahren zur Herstellung desselben |
DE19802476A1 (de) * | 1998-01-23 | 1999-07-29 | Bosch Gmbh Robert | Pumpenanordnung zur Kraftstoffhochdruckversorgung |
Family Cites Families (2)
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 |
JP3841369B2 (ja) * | 1996-11-30 | 2006-11-01 | 臼井国際産業株式会社 | コモンレール |
-
1998
- 1998-11-06 DE DE1998151286 patent/DE19851286C2/de not_active Expired - Fee Related
-
1999
- 1999-11-05 EP EP19990121000 patent/EP0999361B1/de not_active Expired - Lifetime
- 1999-11-05 DE DE59914795T patent/DE59914795D1/de not_active Expired - Lifetime
- 1999-11-05 EP EP06018655A patent/EP1731750B1/de not_active Expired - Lifetime
- 1999-11-05 DE DE59914263T patent/DE59914263D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2296039A (en) * | 1994-12-16 | 1996-06-19 | Perkins Ltd | Stress reduction at a high pressure fluid passage junction |
DE19808807A1 (de) * | 1997-03-03 | 1998-09-24 | Usui Kokusai Sangyo Kk | Verteiler und Verfahren zur Herstellung desselben |
DE19802476A1 (de) * | 1998-01-23 | 1999-07-29 | Bosch Gmbh Robert | Pumpenanordnung zur Kraftstoffhochdruckversorgung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10029425A1 (de) * | 2000-06-15 | 2001-12-20 | Siemens Ag | Bohrungsanordnung mit einer aus mindestens drei Bohrungen gebildeten Verschneidung sowie Verfahren zu deren Herstellung |
DE10029425B4 (de) * | 2000-06-15 | 2004-11-18 | Siemens Ag | Bohrungsanordnung mit einer aus mindestens drei Bohrungen gebildeten Verschneidung sowie Verfahren zu deren Herstellung |
Also Published As
Publication number | Publication date |
---|---|
DE19851286A1 (de) | 2000-05-18 |
EP0999361A3 (de) | 2003-12-10 |
EP1731750A2 (de) | 2006-12-13 |
EP1731750A3 (de) | 2006-12-27 |
DE59914795D1 (de) | 2008-08-07 |
DE19851286C2 (de) | 2001-05-17 |
EP0999361B1 (de) | 2007-03-21 |
EP1731750B1 (de) | 2008-06-25 |
DE59914263D1 (de) | 2007-05-03 |
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