EP1144854B1 - High pressure fuel storage device - Google Patents
High pressure fuel storage device Download PDFInfo
- Publication number
- EP1144854B1 EP1144854B1 EP00979440A EP00979440A EP1144854B1 EP 1144854 B1 EP1144854 B1 EP 1144854B1 EP 00979440 A EP00979440 A EP 00979440A EP 00979440 A EP00979440 A EP 00979440A EP 1144854 B1 EP1144854 B1 EP 1144854B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubular body
- basic
- weakening
- connection apertures
- cross
- 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
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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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
-
- 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
- F02M55/025—Common rails
Definitions
- the invention relates to a high-pressure fuel storage for a Common rail fuel injection system of an internal combustion engine, with a tubular base body, which is a substantially circular cylindrical, relative to the longitudinal axis of the tubular Base body, centrally arranged interior having, with several connection openings communicates, wherein the cross section the tubular body in the section areas in which the Connection openings are arranged, weakened.
- a high-pressure pump delivers possibly with the aid of a prefeed pump, the Fuel to be injected from a tank in the central High-pressure fuel storage, which is referred to as common rail. From lead the rail fuel lines to the individual injectors, the associated with the cylinders of the internal combustion engine.
- the injectors depending on the operating parameters of the Internal combustion engine individually controlled by the engine electronics to To inject fuel into the combustion chamber of the internal combustion engine. Due to the high-pressure fuel storage are the pressure generation and the Injection decoupled from each other.
- a conventional high pressure fuel storage is e.g. in DE 195 48 610 A described.
- the known High-pressure fuel storage can withstand pressures of up to about 1100 bar.
- EPC is a common rail known in which the interior the common rail in the region of the connection openings formed flat is.
- the object of the invention is the high pressure resistance of the known Fuel high pressure accumulator with simple measures to increase.
- the object is in a high-pressure fuel storage for a common rail fuel injection system an internal combustion engine after the Preamble of claim 1 solved by the Cross - sectional weakening under pressure loading an ovalization of the Basic body is achieved.
- the present invention has It turned out that in the field of intersections between the Connection openings and the tubular body under internal pressure critical tensile stresses occur. Through the targeted weakening of the tubular body is the high pressure resistance of the increased fuel high pressure accumulator according to the invention.
- connection openings are substantially tangential open into the interior of the body, and that in the area of Connection openings each a weakening of the tubular Basic body is provided.
- High-pressure fuel accumulator expands the interior of the tubular Base body under the prevailing high pressure.
- By the targeted weakening of the tubular body deforms in the unloaded state circular cross section of the interior to one Ellipse, which is also referred to as ovalization of the diameter. This is a main peak the ellipse in the area of the respective connection opening arranged.
- This will be in the area of the intersection between the tubular body and the Connection opening a compressive stress in the circumferential direction of the induced tubular body. This compressive stress compensates part of the critical tension. Thereby is the stress in the high - risk areas of the Reduced intersections.
- Another particular embodiment of the invention is characterized in that, viewed in cross section, in each case one more opposite the connection openings Weakening of the tubular body is provided. This will cause the previously described effect of ovalization the interior of the tubular body still strengthened. This leads to a further increase in the High pressure resistance of the invention Fuel high-pressure accumulator.
- connection openings in Essentially radially in the interior of the body open, and that, viewed in cross-section, opposite the Connection openings each a weakening of the tubular Basic body is provided. This will be the advance described effect of the ovalization of the interior of the tubular body even at a radial arranged connection opening achieved.
- Another particular embodiment of the invention is characterized in that the weakening of the tubular body of a bevel, a Undercut or a key surface is formed.
- These Types of cross-sectional weakening have the advantage that they can be easily made. This can also be done in conventional high-pressure fuel storage under Internal pressure occurring high voltages in the intersection area be reduced.
- the illustrated in Figure 1 first embodiment of a High-pressure fuel storage according to the invention comprises a tubular body 1.
- the tubular body 1 has the Shape of a hollow circular cylinder.
- Inside the tubular Base 1 is a longitudinal bore 2 recessed.
- the longitudinal bore 2 is concentrically arranged in the tubular body 1 and forms the storage volume of the invention Fuel high-pressure accumulator.
- connection bore 3 extends transversely to the longitudinal axis of the tubular Base body and opens tangentially into the longitudinal bore 2.
- the Bore intersection between the connection hole 3 and the Longitudinal bore 2 is indicated at 4.
- connection bore 3 In the area of the connection bore 3 is in the outer Lateral surface of the tubular base body 1 a Recess 5 provided.
- the recess 5 is in Cross-section circular arc-shaped and extends in the longitudinal direction of the tubular base body 1 only in the Area of the connection bore 3. Opposite the recess 5 is indicated at 6 a flattening.
- a high-pressure fuel storage according to the invention comprises a tubular base body 11.
- a longitudinal bore 12th spared In the tubular body 11 is a longitudinal bore 12th spared.
- a connection bore 13 opens radially into the Longitudinal bore 12. The bore intersection between the Connecting bore 13 and the longitudinal bore 12 is at 14 indicated.
- the invention can not only High-pressure fuel storage, but also on injectors and pump-nozzle body can be arranged.
- the weakenings 5, 6; 16 of the tubular body are according to the present invention on the outer Formed lateral surface of the tubular body.
Description
Die Erfindung betrifft einen Kraftstoffhochdruckspeicher für ein Common-Rail-Kraftstoffeinspritzsystem einer Brennkraftmaschine, mit einem rohrförmigen Grundkörper, der einen im Wesentlichen kreiszylinderförmigen, bezogen auf die Längsachse des rohrförmigen Grundkörpers, zentrisch angeordneten Innenraum aufweist, der mit mehreren Anschlussöffnungen in Verbindung steht, wobei der Querschnitt des rohrförmigen Grundkörpers in den Abschnittsbereichen, in denen die Anschlussöffnungen angeordnet sind, geschwächt ausgebildet ist.The invention relates to a high-pressure fuel storage for a Common rail fuel injection system of an internal combustion engine, with a tubular base body, which is a substantially circular cylindrical, relative to the longitudinal axis of the tubular Base body, centrally arranged interior having, with several connection openings communicates, wherein the cross section the tubular body in the section areas in which the Connection openings are arranged, weakened.
In Common-Rail-Einspritzsystemen fördert eine Hochdruckpumpe, eventuell unter Zuhilfenahme einer Vorförderpumpe, den einzuspritzenden Kraftstoff aus einem Tank in den zentralen Kraftstoffhochdruckspeicher, der als Common-Rail bezeichnet wird. Von dem Rail führen Kraftstoffleitungen zu den einzelnen Injektoren, die den Zylindern der Brennkraftmaschine zugeordnet sind. Die Injektoren werden in Abhängigkeit von den Betriebsparametern der Brennkraftmaschine einzeln von der Motorelektronik angesteuert, um Kraftstoff in den Brennraum der Brennkraftmaschine einzuspritzen. Durch den Kraftstoffhochdruckspeicher sind die Druckerzeugung und die Einspritzung voneinander entkoppelt.In common-rail injection systems, a high-pressure pump delivers possibly with the aid of a prefeed pump, the Fuel to be injected from a tank in the central High-pressure fuel storage, which is referred to as common rail. From lead the rail fuel lines to the individual injectors, the associated with the cylinders of the internal combustion engine. The injectors depending on the operating parameters of the Internal combustion engine individually controlled by the engine electronics to To inject fuel into the combustion chamber of the internal combustion engine. Due to the high-pressure fuel storage are the pressure generation and the Injection decoupled from each other.
Ein herkömmlicher Kraftstoffhochdruckspeicher ist z.B. in der DE 195 48 610 A beschrieben. Der bekannte Kraftstoffhochdruckspeicher hält Drücke von bis zu etwa 1100 Bar aus.A conventional high pressure fuel storage is e.g. in DE 195 48 610 A described. The known High-pressure fuel storage can withstand pressures of up to about 1100 bar.
Aus der nachveröffentlichten WO 01/29405 A1 (Stand der Technik nach Artikel 54 (3) EPÜ ist ein Common-Rail bekannt, bei dem der Innenraum des Common-Rails im Bereich der Anschlussöffnungen eben ausgebildet ist.From the subsequently published WO 01/29405 A1 (prior art Article 54 (3) EPC is a common rail known in which the interior the common rail in the region of the connection openings formed flat is.
Aus der DE 198 08 808 A1 ist ein Common-Rail bekannt, bei dem der Innenraum des Common-Rails im Bereich der Anschlussöffnungen jeweils eine Vertiefung aufweist.From DE 198 08 808 A1 discloses a common rail is known in which the Interior of the common rail in the area of the connection openings respectively having a recess.
Aufgabe der Erfindung ist es, die Hochdruckfestigkeit des bekannten Kraftstoffhochdruckspeichers mit einfachen Maßnahmen zu erhöhen.The object of the invention is the high pressure resistance of the known Fuel high pressure accumulator with simple measures to increase.
Die Aufgabe ist bei einem Kraftstoffhochdruckspeicher für ein Common-Rail-Kraftstoffeinspritzsystem einer Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1 dadurch gelöst, dass durch die Querschnittsschwächung unter Druckbelastung eine Ovalisierung des Grundkörpers erreicht wird. Im Rahmen der vorliegenden Erfindung hat sich herausgestellt, dass im Bereich der Verschneidungen zwischen den Anschlussöffnungen und dem rohrförmigen Grundkörper unter Innendruck kritische Zugspannungen auftreten. Durch die gezielte Schwächung des rohrförmigen Grundkörpers wird die Hochdruckfestigkeit des erfindungsgemäßen Kraftstoffhochdruckspeichers erhöht. The object is in a high-pressure fuel storage for a common rail fuel injection system an internal combustion engine after the Preamble of claim 1 solved by the Cross - sectional weakening under pressure loading an ovalization of the Basic body is achieved. In the context of the present invention has It turned out that in the field of intersections between the Connection openings and the tubular body under internal pressure critical tensile stresses occur. Through the targeted weakening of the tubular body is the high pressure resistance of the increased fuel high pressure accumulator according to the invention.
Eine besondere Ausführungsart der Erfindung ist dadurch gekennzeichnet, dass die Anschlussöffnungen im Wesentlichen tangential in den Innenraum des Grundkörpers münden, und dass im Bereich der Anschlussöffnungen jeweils eine Schwächung des rohrförmigen Grundkörpers vorgesehen ist. Im Betrieb des erfindungsgemäßen Kraftstoffhochdruckspeichers dehnt sich der Innenraum des rohrförmigen Grundkörpers unter dem dort herrschenden Hochdruck aus. Durch die gezielte Schwächung des rohrförmigen Grundkörpers verformt sich der im unbelasteten Zustand kreisrunde Querschnitt des Innenraums zu einer Ellipse, was auch als Ovalisierung des Durchmessers bezeichnet wird. Dabei ist ein Hauptscheitel der Ellipse im Bereich der jeweiligen Anschlussöffnung angeordnet. Dadurch wird im Bereich der Verschneidung zwischen dem rohrförmigen Grundkörper und der Anschlussöffnung eine Druckspannung in Umfangsrichtung des rohrförmigen Grundkörpers induziert. Diese Druckspannung kompensiert einen Teil der kritischen Zugspannung. Dadurch wird die Beanspruchung in den hochgefährdeten Bereichen der Verschneidungen reduziert.A particular embodiment of the invention is characterized characterized in that the connection openings are substantially tangential open into the interior of the body, and that in the area of Connection openings each a weakening of the tubular Basic body is provided. In the operation of the invention High-pressure fuel accumulator expands the interior of the tubular Base body under the prevailing high pressure. By the targeted weakening of the tubular body deforms in the unloaded state circular cross section of the interior to one Ellipse, which is also referred to as ovalization of the diameter. This is a main peak the ellipse in the area of the respective connection opening arranged. This will be in the area of the intersection between the tubular body and the Connection opening a compressive stress in the circumferential direction of the induced tubular body. This compressive stress compensates part of the critical tension. Thereby is the stress in the high - risk areas of the Reduced intersections.
Eine weitere besondere Ausführungsart der Erfindung ist dadurch gekennzeichnet, dass, im Querschnitt betrachtet, gegenüber den Anschlussöffnungen jeweils eine weitere Schwächung des rohrförmigen Grundkörpers vorgesehen ist. Dadurch wird der vorab beschriebene Effekt der Ovalisierung des Innenraums des rohrförmigen Grundkörpers noch verstärkt. Das führt zu einer weiteren Erhöhung der Hochdruckfestigkeit des erfindungsgemäßen Kraftstoffhochdruckspeichers.Another particular embodiment of the invention is characterized in that, viewed in cross section, in each case one more opposite the connection openings Weakening of the tubular body is provided. This will cause the previously described effect of ovalization the interior of the tubular body still strengthened. This leads to a further increase in the High pressure resistance of the invention Fuel high-pressure accumulator.
Eine weitere besondere Ausführungsart der Erfindung ist dadurch gekennzeichnet, dass die Anschlussöffnungen im Wesentlichen radial in den Innenraum des Grundkörpers münden, und dass, im Querschnitt betrachtet, gegenüber den Anschlussöffnungen jeweils eine Schwächung des rohrförmigen Grundkörpers vorgesehen ist. Dadurch wird der vorab beschriebene Effekt der Ovalisierung des Innenraums des rohrförmigen Grundkörpers auch bei einer radial angeordneten Anschlussöffnung erzielt.Another particular embodiment of the invention is characterized in that the connection openings in Essentially radially in the interior of the body open, and that, viewed in cross-section, opposite the Connection openings each a weakening of the tubular Basic body is provided. This will be the advance described effect of the ovalization of the interior of the tubular body even at a radial arranged connection opening achieved.
Eine weitere besondere Ausführungsart der Erfindung ist dadurch gekennzeichnet, dass die Schwächung des rohrförmigen Grundkörpers von einem Anschliff, einem Freistich oder einer Schlüsselfläche gebildet wird. Diese Arten der Querschnittsschwächung haben den Vorteil, dass sie einfach hergestellt werden können. Dadurch können auch bei herkömmlichen Kraftstoffhochdruckspeichern die unter Innendruck auftretenden hohen Spannungen im Verschneidungsbereich abgebaut werden.Another particular embodiment of the invention is characterized in that the weakening of the tubular body of a bevel, a Undercut or a key surface is formed. These Types of cross-sectional weakening have the advantage that they can be easily made. This can also be done in conventional high-pressure fuel storage under Internal pressure occurring high voltages in the intersection area be reduced.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung zwei Ausführungsbeispiele der Erfindung im Einzelnen beschrieben sind. Dabei können die in den Ansprüchen und in der Beschreibung erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein. In der Zeichnung zeigen:
- Figur 1
- ein erstes Ausführungsbeispiel der Erfindung im Querschnitt mit einer tangentialen Anschlussbohrung und
Figur 2- ein zweites Ausführungsbeispiel der Erfindung mit einer radial Anschlussbohrung.
- FIG. 1
- a first embodiment of the invention in cross section with a tangential connection bore and
- FIG. 2
- A second embodiment of the invention with a radial connection bore.
Das in Figur 1 dargestellte erste Ausführungsbeispiel eines
erfindungsgemäßen Kraftstoffhochdruckspeichers umfasst einen
rohrförmigen Grundkörper 1. Der rohrförmige Grundkörper 1 hat die
Gestalt eines hohlen Kreiszylinders. Im Inneren des rohrförmigen
Grundkörpers 1 ist eine Längsbohrung 2 ausgespart. Die Längsbohrung 2
ist konzentrisch in dem rohrförmigen Grundkörper 1 angeordnet und
bildet das Speichervolumen des erfindungsgemäßen
Kraftstoffhochdruckspeichers.The illustrated in Figure 1 first embodiment of a
High-pressure fuel storage according to the invention comprises a
tubular body 1. The tubular body 1 has the
Shape of a hollow circular cylinder. Inside the tubular
Base 1 is a
Eine Anschlussbohrung 3 verläuft quer zur Längsachse des rohrförmigen
Grundkörpers und mündet tangential in die Längsbohrung 2. Die
Bohrungsverschneidung zwischen der Anschlussbohrung 3 und der
Längsbohrung 2 ist bei 4 angedeutet.A
Im Bereich der Anschlussbohrung 3 ist in der äußeren
Mantelfläche des rohrförmigen Grundkörpers 1 eine
Ausnehmung 5 vorgesehen. Die Ausnehmung 5 ist im
Querschnitt kreisbogenförmig ausgebildet und erstreckt sich
in Längsrichtung des rohrförmigen Grundkörpers 1 nur in dem
Bereich der Anschlussbohrung 3. Gegenüber der Ausnehmung 5
ist bei 6 eine Abflachung angedeutet.In the area of the
Durch eine Vielzahl von Pfeilen in radialer Richtung am
Umfang der Längsbohrung 2 ist der im Betrieb im Inneren des
rohrförmigen Grundkörpers 1 herrschende Hochdruck
dargestellt. Die Verformung des rohrförmigen Grundkörpers 1
unter Hochdruck ist durch eine gestrichelt dargestellte
Ellipse 7 angedeutet. In Folge der Querschnittsschwächungen
an den Stellen 5 und 6 treten an der kritischen Stelle 8
zusätzliche Druckspannungen in Umfangsrichtung auf.Through a variety of arrows in the radial direction on
The circumference of the
Das in Figur 2 dargestellte zweite Ausführungsbeispiel
eines erfindungsgemäßen Kraftstoffhochdruckspeichers
umfasst einen rohrförmigen Grundkörper 11. In dem
rohrförmigen Grundkörper 11 ist eine Längsbohrung 12
ausgespart. Eine Anschlussbohrung 13 mündet radial in die
Längsbohrung 12. Die Bohrungsverschneidung zwischen der
Anschlussbohrung 13 und der Längsbohrung 12 ist bei 14
angedeutet.The illustrated in Figure 2 second embodiment
a high-pressure fuel storage according to the invention
comprises a
Der im Betrieb auftretende Innendruck ist durch eine
Vielzahl von Pfeilen in radialer Richtung am Umfang der
Längsbohrung 2 dargestellt. Durch eine gegenüber der
Anschlussbohrung 13 angeordnete Abflachung 16 verformt sich
der rohrförmige Grundkörper 11 in Form einer gestrichelt
dargestellten Ellipse 17. Dadurch wird die kritische Stelle
18 im Bereich der Bohrungsverschneidung 14 entlastet.The internal pressure occurring during operation is through a
Variety of arrows in the radial direction on the circumference of the
Durch die erfindungsgemäße Lösung werden die hohen Spannungen im Bereich der Bohrungsverschneidungen reduziert. Durch die Querschnittsschwächungen wird unter Belastung eine Ovalisierung des Durchmessers erreicht. Dadurch werden im Bereich der Verschneidungen Druckspannungen in Umfangsrichtung induziert und die kritischen Zugspannungen zu einem Teil kompensiert. Somit wird die Beanspruchung in den Bohrungsverschneidungen reduziert.By the solution according to the invention, the high Tensions in the area of the bore intersections reduced. Due to the cross-sectional weakenings is under Strain reached an ovalization of the diameter. This will be in the field of intersections Compressive stresses induced in the circumferential direction and the critical tensile stresses to a part compensated. Consequently becomes the stress in the bore intersections reduced.
Die Erfindung kann nicht nur auf Kraftstoffhochdruckspeicher, sondern auch auf Injektoren und Pumpen-Düse-Körper angeordnet werden.The invention can not only High-pressure fuel storage, but also on injectors and pump-nozzle body can be arranged.
Die Schwächungen 5, 6; 16 des rohrförmigen Grundkörpers
sind gemäß der vorliegenden Erfindung an der äußeren
Mantelfläche des rohrförmigen Grundkörpers ausgebildet.The
Claims (5)
- Fuel high-pressure accumulator for a common rail fuel injection system of an internal combustion engine, with a basic tubular body (1; 11), which has an essentially cylindrical interior chamber (2; 12) arranged concentrically with the longitudinal axis of the basic tubular body, the chamber being connected to a plurality of connection apertures (3; 13), wherein the cross section of the basic tubular body (1; 11) is of weakened construction in the sectional areas in which the connection apertures (3; 13) are arranged, characterized in that ovalization of the basic body (1, 11) is achieved by the weakening of the cross section as a result of pressure being applied.
- Fuel high-pressure accumulator according to Claim 1, characterized in that the connection apertures (3) essentially open tangentially into the interior chamber of the basic body (1), and that a weakening (5) of the basic tubular body (1) is provided in the area of each of the connection apertures (3).
- Fuel high-pressure accumulator according to Claim 2, characterized in that, viewed in cross section, a further weakening (6) of the basic tubular body (1) is provided opposite each of the connection apertures (3).
- Fuel high-pressure accumulator according to Claim 1, characterized in that the connection apertures (13) essentially open radially into the interior chamber of the basic body (11) and that, viewed in cross section, a weakening (16) of the basic tubular body (1) is provided opposite each of the connection apertures (13).
- Fuel high-pressure accumulator according to any of the preceding claims, characterized in that the weakening (5, 6; 16) of the basic tubular body (1; 11) is formed by a grind, an undercut or a flat surface.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19953577 | 1999-11-08 | ||
| DE19953577A DE19953577A1 (en) | 1999-11-08 | 1999-11-08 | High pressure fuel accumulator |
| PCT/DE2000/003695 WO2001034969A1 (en) | 1999-11-08 | 2000-10-20 | High pressure fuel storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1144854A1 EP1144854A1 (en) | 2001-10-17 |
| EP1144854B1 true EP1144854B1 (en) | 2005-08-17 |
Family
ID=7928227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00979440A Expired - Lifetime EP1144854B1 (en) | 1999-11-08 | 2000-10-20 | High pressure fuel storage device |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6427665B1 (en) |
| EP (1) | EP1144854B1 (en) |
| JP (1) | JP4593860B2 (en) |
| KR (1) | KR100703922B1 (en) |
| CN (1) | CN1165681C (en) |
| BR (1) | BR0007406B1 (en) |
| CZ (1) | CZ295456B6 (en) |
| DE (2) | DE19953577A1 (en) |
| ES (1) | ES2248151T3 (en) |
| TW (1) | TW470812B (en) |
| WO (1) | WO2001034969A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948339C1 (en) * | 1999-10-07 | 2000-12-14 | Bosch Gmbh Robert | High pressure fuel reservoir for common-rail fuel injection system for i.c. engine provided by hollow tubular body with its interiror space provided by coupled or overlapping cylindrical recesses |
| DE10056405B4 (en) * | 2000-11-14 | 2005-06-16 | Robert Bosch Gmbh | High-pressure fuel accumulator for a fuel injection system for internal combustion engines |
| DE10152261A1 (en) * | 2001-10-20 | 2003-04-30 | Bosch Gmbh Robert | High pressure accumulators like high pressure fuel accumulators |
| DE10247323A1 (en) * | 2002-10-10 | 2004-04-22 | Robert Bosch Gmbh | Component subject to internal pressure, in particular for fuel injection for internal combustion engines with a variable internal diameter |
| DE10261737A1 (en) * | 2002-12-30 | 2004-07-08 | Robert Bosch Gmbh | Component subject to internal pressure, in particular for fuel injection for internal combustion engines with a high-pressure fuel pump |
| JP2005140058A (en) * | 2003-11-07 | 2005-06-02 | Denso Corp | Common-rail |
| US8141910B2 (en) * | 2004-11-01 | 2012-03-27 | Weise Gary K | Plumbing apparatus |
| US7028668B1 (en) * | 2004-12-21 | 2006-04-18 | Robert Bosch Gmbh | Self-damping fuel rail |
| EP2320084B1 (en) | 2009-11-06 | 2012-09-12 | Delphi Technologies Holding S.à.r.l. | Housing with intersecting passages for high pressure fluid applications |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19548610A1 (en) * | 1995-12-23 | 1997-06-26 | Bosch Gmbh Robert | Flow limiting valve for fuel injection system |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0649897Y2 (en) * | 1988-01-08 | 1994-12-14 | ダイハツ工業株式会社 | Structure of fuel delivery pipe in internal combustion engine |
| JPH02286867A (en) * | 1989-04-28 | 1990-11-27 | Suzuki Motor Corp | Fuel supply device of internal combustion engine |
| JP2898384B2 (en) * | 1989-09-27 | 1999-05-31 | 臼井国際産業株式会社 | Connection structure of branch connector in high-pressure fuel rail |
| JP3778385B2 (en) * | 1996-10-03 | 2006-05-24 | 臼井国際産業株式会社 | Common rail |
| US5979945A (en) * | 1996-12-07 | 1999-11-09 | Usuikokusai Sangyo Kaisha Ltd. | Common rail |
| JPH10220320A (en) * | 1996-12-07 | 1998-08-18 | Usui Internatl Ind Co Ltd | Common rail |
| JPH10318084A (en) * | 1997-03-03 | 1998-12-02 | Usui Internatl Ind Co Ltd | Slider incorporated type member having branch hole for high pressure fluid |
| JP3846763B2 (en) * | 1997-03-03 | 2006-11-15 | 臼井国際産業株式会社 | Manufacturing method of common rail |
| GB2322922B (en) * | 1997-03-03 | 2002-03-06 | Usui Kokusai Sangyo Kk | Common rail and method of manufacturing the same |
| JP3916178B2 (en) * | 1997-03-04 | 2007-05-16 | 臼井国際産業株式会社 | Common rail |
| DE19728111A1 (en) * | 1997-07-02 | 1999-01-07 | Bosch Gmbh Robert | Fuel injection system |
-
1999
- 1999-11-08 DE DE19953577A patent/DE19953577A1/en not_active Ceased
-
2000
- 2000-10-20 WO PCT/DE2000/003695 patent/WO2001034969A1/en active IP Right Grant
- 2000-10-20 BR BRPI0007406-3A patent/BR0007406B1/en not_active IP Right Cessation
- 2000-10-20 JP JP2001536872A patent/JP4593860B2/en not_active Expired - Lifetime
- 2000-10-20 US US09/869,918 patent/US6427665B1/en not_active Expired - Lifetime
- 2000-10-20 KR KR1020017008210A patent/KR100703922B1/en not_active IP Right Cessation
- 2000-10-20 ES ES00979440T patent/ES2248151T3/en not_active Expired - Lifetime
- 2000-10-20 CN CNB008024987A patent/CN1165681C/en not_active Expired - Lifetime
- 2000-10-20 CZ CZ20012470A patent/CZ295456B6/en not_active IP Right Cessation
- 2000-10-20 DE DE50010971T patent/DE50010971D1/en not_active Expired - Lifetime
- 2000-10-20 EP EP00979440A patent/EP1144854B1/en not_active Expired - Lifetime
- 2000-10-25 TW TW089122398A patent/TW470812B/en active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19548610A1 (en) * | 1995-12-23 | 1997-06-26 | Bosch Gmbh Robert | Flow limiting valve for fuel injection system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100703922B1 (en) | 2007-04-05 |
| CN1165681C (en) | 2004-09-08 |
| WO2001034969A1 (en) | 2001-05-17 |
| KR20010093227A (en) | 2001-10-27 |
| BR0007406B1 (en) | 2008-11-18 |
| ES2248151T3 (en) | 2006-03-16 |
| DE50010971D1 (en) | 2005-09-22 |
| JP4593860B2 (en) | 2010-12-08 |
| TW470812B (en) | 2002-01-01 |
| JP2003514191A (en) | 2003-04-15 |
| CZ295456B6 (en) | 2005-08-17 |
| EP1144854A1 (en) | 2001-10-17 |
| BR0007406A (en) | 2001-10-30 |
| CN1335913A (en) | 2002-02-13 |
| CZ20012470A3 (en) | 2002-11-13 |
| DE19953577A1 (en) | 2001-05-23 |
| US6427665B1 (en) | 2002-08-06 |
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