EP1260704B1 - Speichereinspritzsystem mit erhöhter Bauteilfestigkeit von hochdruckführenden Komponenten - Google Patents
Speichereinspritzsystem mit erhöhter Bauteilfestigkeit von hochdruckführenden Komponenten Download PDFInfo
- Publication number
- EP1260704B1 EP1260704B1 EP02100463A EP02100463A EP1260704B1 EP 1260704 B1 EP1260704 B1 EP 1260704B1 EP 02100463 A EP02100463 A EP 02100463A EP 02100463 A EP02100463 A EP 02100463A EP 1260704 B1 EP1260704 B1 EP 1260704B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- manifold
- injection system
- storage
- lines
- storage injection
- 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
- 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
-
- 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 present invention relates to a storage injection system with increased component strength of high-pressure Components and in particular a common rail system.
- the known Storage injection system comprises a high-pressure pump 2, which connected via a line 15 with a manifold 17 is. From the manifold 17 lead lines 5 each to one Rail 12. The rail 12 is via lines 14 each with connected to an injector 4. The Rail 12 takes over both the distribution function of the fuel as well Storage function of the fuel. For this purpose, in the rail 12 a Longitudinal bore formed with a large diameter to one be able to record correspondingly large fuel volume. Furthermore, the manifold 17 is a pressure measuring device 16 arranged.
- a storage injection system to provide, which in a simple Structure and simple, cost-effective manufacturability a increased component strength of high-pressure components allows.
- the storage injection system according to the invention is constructed in such a way that there is a high pressure pump, one with the high pressure pump having connected distributor and a plurality of injectors.
- the injectors are each with the manifold over Lines connected.
- the lines have such a Length up to a certain fuel storage volume have to memory function in the storage injection system to fulfill.
- the memory function is through the lines accepted.
- the lines can also be a little larger Diameter than previously in storage injection systems have used lines, whereby the line length be reduced slightly for a predetermined volume can.
- the manifold has a longitudinal bore, whose diameter is equal to the diameter of the pipes or whose diameter is only slightly larger than the pipe diameter is. This ensures that problematic Pressure peaks in the distributor, in particular on Intersection between the longitudinal bore and the transverse bores do not occur. Equally possible, however, is the Using a manifold with a slightly smaller Inner diameter than that of the lines. So can eg. the inner diameter of the distributor is about 15% smaller its than the inner diameter of the lines.
- Invention is the longitudinal bore in the manifold arranged eccentrically to the distributor piece longitudinal axis.
- the lines on the manifold are preferably by means of adapters fastened, which screwed into the manifold are. This will be by screwing the adapter compressive stresses at the intersection between the longitudinal bore and the transverse bore of the distributor introduced, so that the load in the intersection area is further reduced can be.
- Invention is between the manifold according to the invention and the injectors a second manifold without Storage volume arranged.
- This is the storage injection system practically according to the known structure of Storage injection systems with a manifold and a Rail (second manifold), wherein the inventive Rail, however, does not take over storage function because the memory function of the lines of the storage injection system be taken over.
- the two distributor pieces constructed identically, so that the number increased by equal parts in the storage injection system can be, thereby reducing the manufacturing cost to let. Unused connections on the manifolds can in each case by means of plugs o.ä. be closed.
- the component strength of the high-pressure Components of the storage injection system increased Be by only components with holes with relative small diameter can be used.
- the fuel storage function is completely or partially from the lines accepted.
- the individual components be made cheaper.
- the lines in a storage injection system to provide the entire storage volume for the storage function in the storage injection system used.
- the lines take over the lines (instead of the Rails) the memory function in the system, reducing the number of components can be reduced.
- the storage injection system 1 As shown in Figure 1, the storage injection system 1 according to the first embodiment, a high-pressure pump 2, which is connected via a line 6 with a manifold 3 is. From the manifold 3 go a variety of lines 5, which in each case with an injector 4 for injection connected by fuel. The distributor piece 3 takes over only the distribution function for the fuel. The Memory function of the storage injection system is respectively taken from the lines 5, which has a predetermined length and have a predetermined diameter to this To fulfill memory function.
- the diameter of the lines 5 is not too large, not to exceed certain loads on the lines.
- the lines 5 have a diameter of about 3.0 mm.
- the distributor 3 according to the invention is in one enlarged sectional view shown.
- FIG. 2 is in the manifold 3 along the manifold longitudinal axis X-X introduced a longitudinal bore 7.
- the longitudinal bore 7 has the same diameter as the diameter of the lines 5. From the longitudinal bore 7 go more Transverse holes 8 from which also the same diameter as the longitudinal bore 7 have.
- the transverse bores 8 are thereby formed as stepped holes and have at their the longitudinal bore 7 opposite end one with a thread 9 provide area of larger diameter (see. Figure 2).
- the adapter 10 is in this threaded area 9 screwed an adapter 10 for fixing a line 5.
- the adapter 10 is thereby in the thread. 9 screwed that in the intersection between the Longitudinal bore 7 and the transverse bore 8 additional compressive residual stresses be introduced so that the component strength can be further increased in this intersection area.
- the adapter 10 is designed such that it is screwed in Condition at the bottom of the threaded stepped Bore 9 rests.
- inventive lines 5 are compared with the leads in the prior art much longer, to the entire memory function in the storage injection system to take over. This allows the high dynamic Printing requirements are met and the invention Storage injection system has a significantly extended Life on. Furthermore, it can be a time-consuming post-processing omitted the components of the storage injection system so that the manufacturing costs are significantly reduced can be.
- FIGS. 4 and 5 a storage injection system according to FIG a second embodiment of the present invention shown. Same or functionally identical parts are with the same reference numerals as in the first embodiment designated.
- second distributor pieces 13 In contrast to the first embodiment are in the second Embodiment next to the manifold 3, which directly is arranged adjacent to the high-pressure pump 2, there are also further second distributor pieces 13 (in FIG. 4) is for clarity of presentation only another second Distributor piece 13 shown).
- the second distributor 13 is arranged at the position at which in the state of Technique usually the rail is arranged. It points however, the second distributor 13 does not correspond to the rail Memory function on, but only for distribution of the fuel to the individual injectors 4.
- the second distributor 13 is similar to that in FIG. 2 shown distributor piece 3, wherein in difference
- the longitudinal bore 7 of the second manifold 13 eccentric is arranged to the distributor piece longitudinal axis X-X (see Figure 5).
- the size and thus the weight of the manifold 13 are optimized because the Longitudinal bore 7 relatively close to the outer periphery of the manifold 13 can be arranged.
- the diameter of the longitudinal bore 7 corresponds again to the diameter of the lines 5th
- FIG 4 are still connecting lines 11 between the second manifold 13 and the injectors 4 shown.
- These connecting lines 11 are the same as the Lines 5 constructed and have a length of about 300 mm on. In this case, part of the storage function of the storage injection system also taken from these lines 11 become. It should be noted, however, that the injectors 4 as possible should be arranged close to the manifold 13. However, through longer connecting lines 11 additional Degrees of freedom with regard to a more variable arrangement of the individual components.
- the present invention relates to a storage injection system with a high pressure pump 2, one with the high pressure pump 2 connected manifold 3 and multiple injectors 4.
- the injectors 4 are connected to the manifold 3 respectively connected via lines 5.
- the lines 5 have a such length as to have a predetermined fuel storage volume have and thus the memory function in the storage injection system can take over. This can be done on the Rail used in the prior art can be dispensed with.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Claims (7)
- Speichereinspritzsystem umfassend eine Hochdruckpumpe (2), ein mit der Hochdruckpumpe (2) verbundenes Verteilerstück (3) und mehrere Injektoren (4), die jeweils mit dem Verteilerstück (3) über Leitungen (5) verbunden sind, wobei das Verteilerstück (3) nur die Verteilungsfunktion für den Kraftstoff übernimmt und die Leitungen (5) eine derartige Länge aufweisen, dass sie ein vorbestimmtes Kraftstoffspeichervolumen haben, um im wesentlichen die gesamte Speicherfunktion des Speichereinspritzsystems zu übernehmen.
- Speichereinspritzsystem nach Anspruch 1, dadurch gekennzeichnet, dass das Verteilerstück (3) eine Längsbohrung (7) aufweist, deren Durchmesser dem Durchmesser der Leitungen (5) entspricht oder deren Durchmesser nur geringfügig größer als der Durchmesser der Leitungen (5) ist.
- Speichereinspritzsystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Längsbohrung (7) im Verteilerstück (3) exzentrisch zu einer Verteilerstücklängsachse (X-X) angeordnet ist.
- Speichereinspritzsystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Leitungen (5) am Verteilerstück (3) mittels Adaptern (10) befestigt sind, wobei die Adapter (10) derart in das Verteilerstück (3) eingeschraubt sind, dass Druckeigenspannungen an einer Verschneidung zwischen der Längsbohrung (7) und einer Querbohrung (8) eingebracht werden.
- Speichereinspritzsystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zwischen dem Verteilerstück (3) und den Injektoren (4) ein zweites Verteilerstück (13) zur Verteilung von Kraftstoff auf die Injektoren (4) angeordnet ist.
- Speichereinspritzsystem nach Anspruch 5, dadurch gekennzeichnet, dass das Verteilerstück (3) und das zweite Verteilerstück (13) gleich ausgebildet sind.
- Verwendung von Leitungen (5) in einem Speichereinspritzsystem für eine Bereitstellung des gesamten Speichervolumens zur Übernahme der Speicherfunktion im Speichereinspritzsystem.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10122421 | 2001-05-09 | ||
DE10122421 | 2001-05-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1260704A1 EP1260704A1 (de) | 2002-11-27 |
EP1260704B1 true EP1260704B1 (de) | 2004-08-04 |
Family
ID=7684089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02100463A Expired - Lifetime EP1260704B1 (de) | 2001-05-09 | 2002-05-08 | Speichereinspritzsystem mit erhöhter Bauteilfestigkeit von hochdruckführenden Komponenten |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1260704B1 (de) |
DE (1) | DE50200727D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101163879B (zh) * | 2005-03-21 | 2011-03-23 | 罗伯特·博世有限公司 | 用于多缸内燃机的燃料喷射装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6886537B2 (en) * | 2002-07-04 | 2005-05-03 | Denso Corporation | Accumulation type fuel injection system for engine |
DE102004021040A1 (de) * | 2004-04-29 | 2005-11-24 | Fev Motorentechnik Gmbh | Einspritzeinrichtung für eine Brennkraftmaschine |
DE102009000538A1 (de) * | 2009-02-02 | 2010-08-05 | Robert Bosch Gmbh | Geometrie zur Festigkeitssteigerung bei Bohrungsverschneidungen im Hochdruckbereich |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5887628A (en) * | 1996-04-22 | 1999-03-30 | Usui Kokusai Sangyo Kaisha Limited | High pressure fuel injection pipe for diesel internal combustion engine |
EP1045984B1 (de) * | 1998-08-18 | 2004-11-03 | Delphi Technologies, Inc. | Brennstoffeinspritzungsanordnung |
GB9824366D0 (en) * | 1998-11-07 | 1998-12-30 | Lucas Ind Plc | Fuel system |
DE19945316A1 (de) * | 1999-09-22 | 2001-04-05 | Bosch Gmbh Robert | Kraftstoffhochdruckspeicher |
-
2002
- 2002-05-08 EP EP02100463A patent/EP1260704B1/de not_active Expired - Lifetime
- 2002-05-08 DE DE50200727T patent/DE50200727D1/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101163879B (zh) * | 2005-03-21 | 2011-03-23 | 罗伯特·博世有限公司 | 用于多缸内燃机的燃料喷射装置 |
Also Published As
Publication number | Publication date |
---|---|
DE50200727D1 (de) | 2004-09-09 |
EP1260704A1 (de) | 2002-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19747736C1 (de) | Druckspeicher für Kraftstoffversorgungssysteme | |
EP1079123B1 (de) | Fluiddrucklager | |
EP1143140A1 (de) | Versorgungsvorrichtung für ein Common Rail System | |
EP2385238A2 (de) | Hochdruckinjektor | |
EP1137878B1 (de) | Kraftstoffhochdruckspeicher | |
DE10056405A1 (de) | Kraftstoffhochdruckspeicher für ein Kraftstoffeinspritzsystem für Brennkraftmaschinen | |
DE102010051004A1 (de) | Kraftstoffverteilerrohr und Kraftstoffverteilerbaugruppe | |
DE102016201082B4 (de) | Kraftstoffhochdruckpumpe | |
WO2008017544A1 (de) | Kraftstoffeinspritzsystem mit einem druckschwingungsdämpfer | |
EP1260704B1 (de) | Speichereinspritzsystem mit erhöhter Bauteilfestigkeit von hochdruckführenden Komponenten | |
WO2001033070A1 (de) | Kraftstoffeinspritzsystem für brennkraftmaschinen mit konstantem lecköldruck im injektor | |
AT518510B1 (de) | Speichereinspritzsystem für Verbrennungskraftmaschinen | |
EP2052149B1 (de) | Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine | |
EP1435454A1 (de) | Innendruckbelastetes Bauteil, insbesondere für die Kraftstoffeinspritzung für Brennkraftmaschinen mit einer Kraftstoffhochdruckpumpe | |
WO2016055293A1 (de) | Speichereinspritzsystem für verbrennungskraftmaschinen | |
EP1423601B1 (de) | Kraftstoffhochdruckspeicher für ein speichereinspritzsystem | |
DE19936685A1 (de) | Kraftstoffhochdruckspeicher | |
EP2954190B1 (de) | Bauelement mit ineinandermündenden hochdruckbohrungen | |
DE19618791C1 (de) | Brennstoffeinspritzsystem für Emulsionsbetrieb | |
EP1518050B1 (de) | Injektor für ein einspritzsystem | |
EP1359318A1 (de) | Kraftstoffhochdruckspeicher mit verbesserten Dämpfungseigenschaften | |
EP2132434B1 (de) | Kraftstoffeinspritzsystem sowie druckverstärkungseinrichtung für ein kraftstoffeinspritzsystem | |
DE10132245A1 (de) | Druckfester Hochdrucksammelraum | |
EP1256713A2 (de) | Einspritzvorrichtung für ein Speichereinspritzsystem mit Funktionstrennung von Volumenspeicher und Verteilerstück | |
DE102019209002A1 (de) | Komponente, insbesondere Brennstoffleitung oder Brennstoffverteiler, und Brennstoffeinspritzanlage |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20030120 |
|
17Q | First examination report despatched |
Effective date: 20030225 |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB IT |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
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 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040804 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50200727 Country of ref document: DE Date of ref document: 20040909 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
ET | Fr: translation filed | ||
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: 20050506 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20110825 AND 20110831 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R084 Ref document number: 50200727 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 50200727 Country of ref document: DE Owner name: VITESCO TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20200522 Year of fee payment: 19 Ref country code: DE Payment date: 20200531 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20200528 Year of fee payment: 19 Ref country code: GB Payment date: 20200527 Year of fee payment: 19 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50200727 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 50200727 Country of ref document: DE Owner name: VITESCO TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GMBH, 30165 HANNOVER, DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20210508 |
|
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: 20210508 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211201 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200508 |