DE102006036103A1 - Tube arrangement for fuel injection system of internal-combustion engine in motor vehicle, has fluid channel in slot wall section flowing in slot of another fluid channel so that axial direction is inclined around angle of inclination - Google Patents
Tube arrangement for fuel injection system of internal-combustion engine in motor vehicle, has fluid channel in slot wall section flowing in slot of another fluid channel so that axial direction is inclined around angle of inclination Download PDFInfo
- Publication number
- DE102006036103A1 DE102006036103A1 DE200610036103 DE102006036103A DE102006036103A1 DE 102006036103 A1 DE102006036103 A1 DE 102006036103A1 DE 200610036103 DE200610036103 DE 200610036103 DE 102006036103 A DE102006036103 A DE 102006036103A DE 102006036103 A1 DE102006036103 A1 DE 102006036103A1
- Authority
- DE
- Germany
- Prior art keywords
- fluid channel
- slot
- axial direction
- channel
- wall section
- 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.)
- Ceased
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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
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- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/008—Arrangement of fuel passages inside of injectors
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- 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
- F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft eine Kanalanordnung, mit einem Körper, einem in dem Körper angeordneten ersten Fluidkanal und einem in dem Körper angeordneten zweiten Fluidkanal.The The invention relates to a channel arrangement, comprising a body in the body arranged first fluid channel and a disposed in the body second fluid channel.
Aus
der
Aufgabe der Erfindung ist es, mit einfachen Mitteln eine hochdruckfeste Kanalanordnung zu schaffen.task The invention is, with simple means a high pressure resistant To create channel arrangement.
Die Erfindung zeichnet sich aus durch eine Kanalanordnung, mit einem Körper, einem in dem Körper angeordneten, sich in einer ersten Axialrichtung erstreckenden ersten Fluidkanal, der eine in dem Körper ausgebildete Tasche aufweist, und einem in dem Körper angeordneten, sich in einer zweiten Axialrichtung erstreckenden zweiten Fluidkanal, der einen kleineren Querschnitt als der erste Fluidkanal hat. Die Tasche ist so ausgebildet und angeordnet, dass sie einen ebenen, sich in einer Radialebene des ersten Fluidkanals erstreckenden Taschenwandabschnitt in dem Körper bildet und der zweite Fluidkanal in dem Taschenwandabschnitt so in die Tasche des ersten Fluidkanals mündet, dass die zweite Axialrichtung des zweiten Fluidkanals um einen Neigungswinkel, der maximal in etwa 90° ist, gegenüber dem Taschenwandabschnitt geneigt ist.The Invention is characterized by a channel arrangement, with a Body, one in the body arranged, extending in a first axial direction first Fluid channel, one in the body formed pocket, and arranged in the body, in a second axial direction extending second fluid channel, the has a smaller cross-section than the first fluid channel. The pocket is designed and arranged so that it is a level, in a radial plane of the first fluid channel extending pocket wall portion in the body forms and the second fluid channel in the pocket wall portion so opens into the pocket of the first fluid channel that the second axial direction of the second fluid channel by an inclination angle, the maximum in is about 90 °, across from the pocket wall portion is inclined.
Dies bedeutet, dass der zweite Fluidkanal in den Taschenwandabschnitt so in die Tasche des ersten Fluidkanals mündet, dass der Taschenwandabschnitt und der zweiten Fluidkanal miteinander einen Bereich des Körpers der Kanalanordnung einschließen, der einen Winkel von in etwa größer als 90 Grad ausbildet.This means that the second fluid channel in the pocket wall portion so flows into the pocket of the first fluid channel that the pocket wall portion and the second fluid channel communicate with each other a portion of the body of the Include channel arrangement, an angle of approximately greater than 90 Degrees education.
Bei hochdruckbeanspruchten Kanalanordnungen, bei denen der zweite Fluidkanal einen kleineren Querschnitt hat als der erste Fluidkanal und in den ersten Fluidkanal mündet, erfährt der erste Fluidkanal mit dem größeren Querschnitt bei konstantem Druck eine stärkere Kraftbeaufschlagung als der zweite Fluidkanal mit dem kleineren Querschnitt. Damit erfährt ein Verschneidungsbereich zwischen dem ersten Fluidkanal und dem zweiten Fluidkanal Zug- und Druckspannungen. Ist der ebene, sich in der Radialebene des ersten Fluidkanals erstreckende Taschenwandabschnitt in dem Körper so angeordnet, dass der zweite Fluidkanal in dem Taschenwandabschnitt in die Tasche des ersten Fluidkanals mündet, so geht die Krümmung einer Verschneidungskurve zwischen dem ersten Fluidkanal und dem zweiten Fluidkanal in der Radialebene gegen Null. Ist weiter die zweite Axialrichtung des zweiten Fluidkanals mit einem Neigungswinkel, der maximal in etwa 90° ist, gegenüber dem Taschenwandabschnitt geneigt, so bewirken die Zugspannungen eine geringe Kerbwirkung im Verschneidungsbereich zwischen dem ersten Fluidkanal und dem zweiten Fluidkanal, das heißt an den Kerben im Verschneidungsbereich entstehen nur geringe lokale Spannungsspitzen. Infolgedessen kann eine hohe Druckschwellfestigkeit, das heißt eine hohe Festigkeit gegenüber häufigen Druckschwankungen, erreicht werden. Damit ist eine Beaufschlagung der Kanalanordnung mit sehr hohen Drücken erreichbar. Andererseits kann auch eine Einsparung von Material für den Körper der Kanalanordnung möglich sein, wenn die Kanalanordnung mit niedrigen Drücken beaufschlagt ist.at highly pressurized channel arrangements, in which the second fluid channel has a smaller cross section than the first fluid channel and in the first fluid channel opens, learns the first fluid channel with the larger cross section at constant pressure a stronger one Applying force as the second fluid channel with the smaller Cross-section. So learns a intersection region between the first fluid channel and the second fluid channel tensile and compressive stresses. Is the plane, itself in the radial plane of the first fluid channel extending pocket wall portion in the body arranged so that the second fluid channel in the pocket wall portion opens into the pocket of the first fluid channel, the curvature goes one Intersection curve between the first fluid channel and the second Fluid channel in the radial plane to zero. Is the second one Axial direction of the second fluid channel with an inclination angle, the maximum is about 90 °, across from tilted the pocket wall portion, so cause the tensile stresses a slight notch effect in the intersection between the first Fluid channel and the second fluid channel, that is at the notches in the intersection region only low local voltage peaks occur. As a result, can a high pressure swelling resistance, that is a high resistance to frequent pressure fluctuations, be achieved. This is an admission of the channel arrangement with very high pressures reachable. On the other hand, also a saving of material for the body the channel arrangement possible be when the channel assembly is subjected to low pressures.
Ein weiterer Vorteil der Kanalanordnung besteht darin, dass die Empfindlichkeit der Kanalanordnung gegenüber geometrischen Toleranzen des ersten Fluidkanals und des zweiten Fluidkanals sowie der Fluidkanäle zueinander gering ist. Dies wird erreicht durch eine gleich bleibend geringe Krümmung der Verschneidungskurve in Radialebene auch bei unterschiedlicher Positionierung des ersten Fluidkanals zu dem zweitem Fluidkanal.One Another advantage of the channel arrangement is that the sensitivity the channel arrangement opposite geometric tolerances of the first fluid channel and the second Fluid channels and the fluid channels is low to each other. This is achieved by a consistent slight curvature of the intersection curve in radial plane even with different positioning of the first Fluid channel to the second fluid channel.
Durch die geringe Kerbwirkung in dem Verschneidungsbereich zwischen dem ersten Fluidkanal und dem zweiten Fluidkanal besteht nur noch ein geringer Einfluss der Oberflächengüte des Verschneidungsbereichs. Es kann also auch mit einer Kanalanordnung, die keine hohe Oberflächengüte aufweist, eine hohe Druckschwellfestigkeit erreicht werden.By the low notch effect in the intersection between the first fluid channel and the second fluid channel is only one slight influence of the surface quality of the intersection area. It can therefore also with a channel arrangement, which does not have a high surface quality, a high crushing strength can be achieved.
Ein weitere Vorteil besteht darin, dass nur noch ein geringer Aufwand für die Verrundung des Verschneidungsbereichs erforderlich ist, da dise nur noch einen geringen Einfluss auf die Kerbwirkung und damit auf die Druckschwellfestigkeit der Kanalanordnung hat.One Another advantage is that only a small effort for the Rounding the intersection area is required because dise only a small influence on the notch effect and thus on the pressure threshold strength of the channel arrangement has.
Ausführungsbeispiele der Erfindung sind im Folgenden anhand der schematischen Zeichnungen näher erläutert.embodiments The invention are explained in more detail below with reference to the schematic drawings.
Es zeigen:It demonstrate:
Elemente gleicher Konstruktion oder Funktion sind figurenübergreifend mit den gleichen Bezugszeichen gekennzeichnet.elements same construction or function are cross-figurative with the same Reference number marked.
In
den
Der
zweite Fluidkanal
Die
zweite Axialrichtung A2 des zweiten Fluidkanals
Wird
die Kanalanordnung
Die
Ausführungsform
der Kanalanordnung
In
einer zweiten Ausführungsform
der Kanalanordnung
Die
Verschneidungskurven
Die
Kanalanordnung
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610036103 DE102006036103A1 (en) | 2006-08-02 | 2006-08-02 | Tube arrangement for fuel injection system of internal-combustion engine in motor vehicle, has fluid channel in slot wall section flowing in slot of another fluid channel so that axial direction is inclined around angle of inclination |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610036103 DE102006036103A1 (en) | 2006-08-02 | 2006-08-02 | Tube arrangement for fuel injection system of internal-combustion engine in motor vehicle, has fluid channel in slot wall section flowing in slot of another fluid channel so that axial direction is inclined around angle of inclination |
Publications (1)
Publication Number | Publication Date |
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DE102006036103A1 true DE102006036103A1 (en) | 2008-02-07 |
Family
ID=38884869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE200610036103 Ceased DE102006036103A1 (en) | 2006-08-02 | 2006-08-02 | Tube arrangement for fuel injection system of internal-combustion engine in motor vehicle, has fluid channel in slot wall section flowing in slot of another fluid channel so that axial direction is inclined around angle of inclination |
Country Status (1)
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DE (1) | DE102006036103A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010022909A1 (en) | 2010-06-07 | 2011-12-08 | Continental Automotive Gmbh | Fuel injector, has channel arrangement including two channels, and recess provided in intersecting portion of channels in body by electrochemical removal, where recess is formed in rectangular shape in sectional plane |
EP2808532A1 (en) * | 2013-05-30 | 2014-12-03 | Delphi International Operations Luxembourg S.à r.l. | Fuel injector |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1355759A (en) * | 1971-10-23 | 1974-06-05 | Bosch Gmbh Robert | Fuel injection nozzles for internal combustion engines |
GB1447040A (en) * | 1972-12-22 | 1976-08-25 | Cav Ltd | Liquid fuel injection nozzles for internal combsution engines |
EP0425236A1 (en) * | 1989-10-26 | 1991-05-02 | Lucas Industries Public Limited Company | Fuel injection nozzles for internal combustion engines |
DE19843953A1 (en) * | 1998-09-24 | 2000-03-30 | Siemens Ag | Fuel injection valve for an internal combustion engine |
DE10152261A1 (en) * | 2001-10-20 | 2003-04-30 | Bosch Gmbh Robert | High pressure accumulators like high pressure fuel accumulators |
DE10329052A1 (en) * | 2003-06-27 | 2005-01-13 | Robert Bosch Gmbh | Connection of high-pressure chamber in a high-pressure body of injection system for fuel, comprises cylindrical pocket or a circular groove formed in the high-pressure chamber of the body |
US20060157582A1 (en) * | 2005-01-14 | 2006-07-20 | Denso Corporation | Fuel injector reducing stress concentration |
-
2006
- 2006-08-02 DE DE200610036103 patent/DE102006036103A1/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1355759A (en) * | 1971-10-23 | 1974-06-05 | Bosch Gmbh Robert | Fuel injection nozzles for internal combustion engines |
GB1447040A (en) * | 1972-12-22 | 1976-08-25 | Cav Ltd | Liquid fuel injection nozzles for internal combsution engines |
EP0425236A1 (en) * | 1989-10-26 | 1991-05-02 | Lucas Industries Public Limited Company | Fuel injection nozzles for internal combustion engines |
DE19843953A1 (en) * | 1998-09-24 | 2000-03-30 | Siemens Ag | Fuel injection valve for an internal combustion engine |
DE10152261A1 (en) * | 2001-10-20 | 2003-04-30 | Bosch Gmbh Robert | High pressure accumulators like high pressure fuel accumulators |
DE10329052A1 (en) * | 2003-06-27 | 2005-01-13 | Robert Bosch Gmbh | Connection of high-pressure chamber in a high-pressure body of injection system for fuel, comprises cylindrical pocket or a circular groove formed in the high-pressure chamber of the body |
US20060157582A1 (en) * | 2005-01-14 | 2006-07-20 | Denso Corporation | Fuel injector reducing stress concentration |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010022909A1 (en) | 2010-06-07 | 2011-12-08 | Continental Automotive Gmbh | Fuel injector, has channel arrangement including two channels, and recess provided in intersecting portion of channels in body by electrochemical removal, where recess is formed in rectangular shape in sectional plane |
EP2808532A1 (en) * | 2013-05-30 | 2014-12-03 | Delphi International Operations Luxembourg S.à r.l. | Fuel injector |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |