EP1117924B1 - Kraftstoffhochdruckspeicher - Google Patents
Kraftstoffhochdruckspeicher Download PDFInfo
- Publication number
- EP1117924B1 EP1117924B1 EP00956116A EP00956116A EP1117924B1 EP 1117924 B1 EP1117924 B1 EP 1117924B1 EP 00956116 A EP00956116 A EP 00956116A EP 00956116 A EP00956116 A EP 00956116A EP 1117924 B1 EP1117924 B1 EP 1117924B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure fuel
- basic body
- tubular basic
- fuel accumulator
- tubular
- 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
- 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
-
- 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 a Internal combustion engine, with a tubular body, the equipped with several connections.
- Such a high-pressure fuel storage is e.g. in the DE 196 40 480 described.
- common-rail injection systems Promotes a high-pressure pump, possibly with the help a prefeed pump, the fuel to be injected a tank in the central high-pressure fuel storage, which is referred to as common rail. Lead by the rail Fuel lines to the individual injectors, the Cylinders of the internal combustion engine are assigned. The Injectors are dependent on the Operating parameters of the internal combustion engine individually from the Engine electronics driven to fuel in the combustion chamber to inject the internal combustion engine.
- the High-pressure fuel storage systems are the pressure generation and the Injection decoupled from each other.
- the rail known from DE 196 40 480 is made of a exactly matching forging blank made. For different engine variants are different Forging blanks needed.
- the object of the invention is to provide a high-pressure fuel storage to provide at the outset for a large number similar motors, e.g. common four-cylinder engines used can.
- the high-pressure fuel storage according to the invention be simple and inexpensive to produce.
- This task is in a high-pressure fuel storage for a Common rail fuel injection system of an internal combustion engine, with a tubular body, with several connections is also solved by the fact that on the tubular Base body a plurality of connecting pieces are formed, whose Dimensions in the longitudinal direction of the tubular body are larger as the space required for the connections.
- the connecting pieces can be made so wide that the position of e.g. through a produced machining process connections within the given width is freely selectable. This is Ensures that a forging blank for the production of different rails used for different engine variants can be. Thus, those for the production of forging blank required tooling costs significantly reduced.
- Another particular embodiment of the invention is characterized in that at least one den tubular body encompassing mounting flange with a fastening tab on the tubular Main body is clamped.
- the fastening tab is used for attachment of the high-pressure fuel accumulator to the Internal combustion engine.
- Another particular embodiment of the invention is characterized in that the terminal block or the Connecting piece to the tubular body forged. This will be the high pressure resistance and the life of the invention Fuel high pressure accumulator increases.
- Another particular embodiment of the invention is characterized in that a plurality of fastening tabs the tubular body are welded.
- the Welding the fastening tabs provides the advantage that the position of the attachment tabs or the Cultivation sites are freely selectable.
- tubular body has a longitudinally extending blind hole, whose open end is closed by a pressure sensor is. That gives the advantage that no extra High pressure seal is required for the pressure sensor. A plug for the open end of the Blind hole can be omitted.
- Another particular embodiment of the invention is characterized in that the pressure sensor of a Protective sleeve is surrounded.
- the protective sleeve serves to the Protect pressure sensor from mechanical damage.
- the protective sleeve can be in one piece or two pieces be educated.
- FIG. 1 is a first embodiment a fuel high pressure accumulator according to the invention in Longitudinal section shown.
- the illustrated High-pressure fuel storage comprises a tubular Base body 1.
- the tubular base body 1 is in Longitudinally provided a blind hole 2.
- the Blind hole 2 forms the storage volume of Fuel high-pressure accumulator.
- the open end of the Blind hole 2 is by a rail pressure sensor. 3 locked.
- the rail pressure sensor 3 is of a Protective sleeve 4 surrounded, which is the shape of a hollow cylinder having.
- Connecting pieces 5, 6, 7 and 8 On the outside of the tubular body 1 are four Connecting pieces 5, 6, 7 and 8 attached.
- the Connecting piece 5 to 8 is in each case a connection bore educated.
- the connecting piece 5 is a Connection hole 9 exemplified. How to get in 1, the diameter of the connection bore 9 is the diameter in the connecting piece 5 is much smaller than the width b of the Connecting piece 5. This makes it possible to Connection hole 9 at different points of the Position connecting piece 5.
- connection holes The distance between the individual connection holes in the connecting pieces 5 to 8 from each other is indicated by a.
- the connection holes each have the same distance a from each other.
- the distances between the center lines of the connection bores in the connecting pieces 5 to 8 from the closed end of the tubular base body 1 are indicated in FIG. 1 as f 1 , f 2 , f 3 and f 4 .
- the tubular basic body 1 shown in FIG. 1 is a forged part.
- the connecting pieces 5 to 8 are forged to the tubular body 1.
- the forged connecting pieces 5 to 8 are made so wide that the positions f 1 , f 2 , f 3 and f 4 of the injector connections 5 to 8 produced by machining are freely selectable within the width b.
- the forging blank can be used universally for common cylinder spacings (eg in conventional four-cylinder engines).
- two fastening tabs 10 and 11 are welded on the connecting piece 5 to 8 opposite side of the tubular body 1.
- the distances of the fastening tabs 10 and 11 from the closed end of the tubular base body 1 are indicated by d 1 and d 2 .
- the position of the welded fastening tabs 10 and 11 can be freely selected depending on the engine to be loaded.
- FIG. 2 shows a second embodiment of a device according to the invention Fuel high pressure accumulator shown.
- tubular body 21 is a Longitudinal bore 22 is arranged.
- connection part 25 On a section of the tubular Base 21 is a separate connection part 25 by means of a Clamped 28 screwed.
- the connection between the Connecting part 25 and the tubular body 21 can also byshrinking, riveting or welding done.
- the connection part 25 is as a forging, stamping or extrusion in large numbers as Supplied part.
- the position of the connecting part 25 on the tubular base body 21st is freely selectable and not tied to a forging blank.
- the Connector 25 encloses the tubular body 21.
- an opening 27 in the tubular body 21 is the connection bore 26 with the Longitudinal bore 22 in the tubular body 21 in conjunction.
- a separating flange for clamping provided the tubular body 21.
- a mounting flange 30 is shown, the connection part 25 is similar.
- a fastening tab 31 is formed, the Attachment of the invention High-pressure fuel accumulator on the internal combustion engine serves.
- the mounting flange 30 is the same as the Connecting part 25 on the tubular body 21st clamped. The clamping force required for clamping is provided by a screw connection 32.
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
- Figur 1
- eine erste Ausführungsform eines erfindungsgemäßen Kraftstoffhochdruckspeichers teilweise im Längsschnitt;
- Figur 2
- einen Ausschnitt einer zweiten Ausführungsform eines erfindungsgemäßen Kraftstoffhochdruckspeichers mit einem Anschlussteil;
- Figur 3
- das Anschlussteil aus Figur 2 in separater Darstellung in einer Seitenansicht; und
- Figur 4
- einen Befestigungsflansch ebenfalls in der Seitenansicht.
Claims (6)
- Kraftstoffhochdruckspeicher für ein Common-Rail-Kraftstoffeinspritzsystem einer Brennkraftmaschine, mit einem rohrförmigen Grundkörper (1; 21), der mit mehreren Anschlüssen (5 bis 8; 25) ausgestattet ist, dadurch gekennzeichnet, dass an dem rohrförmigen Grundkörper (1) mehrere Anschlussstutzen (5 bis 8) ausgebildet sind, deren Abmessungen (b) in Längsrichtung des rohrförmigen Grundkörpers (1) größer sind als der für die Anschlüsse (9) erforderliche Platz.
- Kraftstoffhochdruckspeicher nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein den rohrförmigen Grundkörper (21) umgreifender Befestigungsflansch (30) mit einer Befestigungslasche (31) auf dem rohrförmigen Grundkörper (21) festgeklemmt ist.
- Kraftstoffhochdruckspeicher nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Anschlussleiste bzw. die Anschlussstutzen (5 bis 8) an den rohrförmigen Grundkörper (1) geschmiedet sind.
- Kraftstoffhochdruckspeicher nach Anspruch 3, dadurch gekennzeichnet, dass mehrere Befestigungslaschen (10, 11) an den rohrförmigen Grundkörper (1) geschweißt sind.
- Kraftstoffhochdruckspeicher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der rohrförmige Grundkörper (1) eine in Längsrichtung verlaufende Sacklochbohrung (2) aufweist, deren offenes Ende durch einen Drucksensor (3) verschlossen ist.
- Kraftstoffhochdruckspeicher nach Anspruch 5, dadurch gekennzeichnet, dass der Drucksensor (3) von einer Schutzhülse (4) umgeben ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19936534A DE19936534A1 (de) | 1999-08-03 | 1999-08-03 | Kraftstoffhochdruckspeicher |
DE19936534 | 1999-08-03 | ||
PCT/DE2000/002563 WO2001009508A1 (de) | 1999-08-03 | 2000-08-01 | Kraftstoffhochdruckspeicher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1117924A1 EP1117924A1 (de) | 2001-07-25 |
EP1117924B1 true EP1117924B1 (de) | 2005-04-27 |
Family
ID=7917044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00956116A Expired - Lifetime EP1117924B1 (de) | 1999-08-03 | 2000-08-01 | Kraftstoffhochdruckspeicher |
Country Status (8)
Country | Link |
---|---|
US (1) | US6644279B1 (de) |
EP (1) | EP1117924B1 (de) |
JP (1) | JP2003506613A (de) |
KR (1) | KR100691207B1 (de) |
AT (1) | ATE294326T1 (de) |
CZ (1) | CZ296995B6 (de) |
DE (2) | DE19936534A1 (de) |
WO (1) | WO2001009508A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10128715B4 (de) * | 2001-05-04 | 2005-09-22 | Mtu Friedrichshafen Gmbh | Kraftstoffhochdruckleitung |
DE10249105B4 (de) * | 2002-10-21 | 2007-12-13 | Sls Micro Technology Gmbh | Mikrofluides System und Verfahren zur Herstellung eines solchen |
DE10249219B4 (de) * | 2002-10-22 | 2007-04-05 | Siemens Ag | Kraftstoffhochdruckspeicher |
DE10314029A1 (de) | 2003-03-28 | 2004-10-07 | Deutz Ag | Brennkraftmaschine mit einem Speichereinspritzsystem |
JP4069913B2 (ja) * | 2004-09-10 | 2008-04-02 | 株式会社デンソー | 蓄圧式燃料噴射システムに用いられる継手部材の接合方法および取付ステーの接合方法 |
DE102006017900A1 (de) * | 2006-04-13 | 2007-10-25 | Robert Bosch Gmbh | Befestigungsvorrichtung für Hochdruckleitungen an einem Hochdruckspeicher |
KR100765593B1 (ko) * | 2006-09-20 | 2007-10-09 | 현대자동차주식회사 | 엔진의 연료파이프와 슬리이브 체결구조 |
FR2950396B1 (fr) * | 2009-09-22 | 2012-04-27 | Mark Iv Systemes Moteurs Sa | Module fonctionnel integrant un repartiteur et une rampe d'injection et son procede de fabrication |
JP2011144768A (ja) * | 2010-01-15 | 2011-07-28 | Maruyasu Industries Co Ltd | 直噴エンジン用高圧燃料デリバリパイプ及びその製造方法 |
DE102012001926A1 (de) * | 2012-02-02 | 2013-08-08 | Benteler Automobiltechnik Gmbh | Kraftstoffverteilerleiste |
JP6230407B2 (ja) * | 2013-12-19 | 2017-11-15 | マルヤス工業株式会社 | 直噴エンジン用高圧燃料デリバリパイプアセンブリ |
KR101715037B1 (ko) * | 2015-04-08 | 2017-04-03 | 주식회사 세림티앤디 | 냉간단조에 의한 차량 엔진 연료레일용 보스 제조 방법 및 제조 장치 |
DE102017122301B3 (de) | 2017-09-26 | 2018-10-31 | Benteler Automobiltechnik Gmbh | Kraftstoffverteiler |
DE102019220377A1 (de) * | 2019-12-20 | 2021-06-24 | Robert Bosch Gmbh | Fluidverteiler für eine Einspritzanlage, insbesondere Brennstoffverteilerleiste für eine Brennstoffeinspritzanlage für gemischverdichtende, fremdgezündete Brennkraftmaschinen |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3223556A1 (de) * | 1982-06-24 | 1983-12-29 | Robert Bosch Gmbh, 7000 Stuttgart | Fluidleitung |
US4570602A (en) * | 1982-08-23 | 1986-02-18 | General Motors Corporation | Fuel rail |
FR2547868B1 (fr) | 1983-06-21 | 1985-12-27 | Gerard De Bruyn | Procede de fabrication d'une rampe d'injection d'essence, et rampe obtenue par ce procede |
JPS63125171U (de) * | 1987-02-09 | 1988-08-16 | ||
JPS63185988U (de) * | 1987-05-23 | 1988-11-29 | ||
CA1321806C (en) * | 1989-09-27 | 1993-08-31 | Dominique Lesquir | Connector for sap collecting system |
US5423303A (en) * | 1993-05-28 | 1995-06-13 | Bennett; David E. | Fuel rail for internal combustion engine |
JP3757432B2 (ja) * | 1994-04-13 | 2006-03-22 | 株式会社デンソー | 燃料供給装置およびデリバリパイプ |
DE19514055B8 (de) | 1994-04-13 | 2006-02-09 | Denso Corp., Kariya | Kraftstoffzuführsystem und dafür vorgesehene Versorgungsleitung |
US5513613A (en) * | 1994-07-15 | 1996-05-07 | Ford Motor Company | Automotive fuel rail end closure device with temperature sensor for returnless fuel system |
JP3384885B2 (ja) * | 1994-09-22 | 2003-03-10 | マルヤス工業株式会社 | フューエルデリバリ装置 |
US5511527A (en) * | 1995-06-28 | 1996-04-30 | Siemens Automotive Corporation | Fuel rail assembly with crossover hose |
DE19640480B4 (de) * | 1996-09-30 | 2004-04-22 | Robert Bosch Gmbh | Kraftstoffhochdruckspeicher |
US5979945A (en) | 1996-12-07 | 1999-11-09 | Usuikokusai Sangyo Kaisha Ltd. | Common rail |
JPH10205674A (ja) * | 1997-01-17 | 1998-08-04 | Usui Internatl Ind Co Ltd | コモンレール |
CA2230745A1 (en) | 1997-03-03 | 1998-09-03 | Kikuo Asada | Method for improving fatigue strength due to repeated pressure at branch hole part in member for high pressure fluid, branch hole part of member for high pressure fluid formed by the method, and member for high pressure fluid with built-in slider having the branch hole |
GB2322920B (en) | 1997-03-03 | 2002-02-27 | Usui Kokusi Sangyo Kaisha Ltd | Common rail and method of manufacturing the same |
JP3819108B2 (ja) * | 1997-04-23 | 2006-09-06 | 臼井国際産業株式会社 | コモンレール |
DE19736191A1 (de) * | 1997-08-20 | 1999-02-25 | Siemens Ag | Druckbehälter mit Anschlußbohrung |
DE19740608C2 (de) * | 1997-09-16 | 2003-02-13 | Daimler Chrysler Ag | Verfahren zur Bestimmung einer kraftstoffeinspritzbezogenen Kenngröße für einen Verbrennungsmotor mit Hochdruckspeicher-Einspritzanlage |
JPH11107873A (ja) * | 1997-10-03 | 1999-04-20 | Denso Corp | 圧力制御装置及びそれを用いた蓄圧式燃料噴射装置 |
-
1999
- 1999-08-03 DE DE19936534A patent/DE19936534A1/de not_active Ceased
-
2000
- 2000-08-01 US US09/806,677 patent/US6644279B1/en not_active Expired - Fee Related
- 2000-08-01 AT AT00956116T patent/ATE294326T1/de not_active IP Right Cessation
- 2000-08-01 DE DE50010159T patent/DE50010159D1/de not_active Expired - Lifetime
- 2000-08-01 CZ CZ20011139A patent/CZ296995B6/cs not_active IP Right Cessation
- 2000-08-01 JP JP2001513751A patent/JP2003506613A/ja active Pending
- 2000-08-01 EP EP00956116A patent/EP1117924B1/de not_active Expired - Lifetime
- 2000-08-01 KR KR1020017004070A patent/KR100691207B1/ko not_active IP Right Cessation
- 2000-08-01 WO PCT/DE2000/002563 patent/WO2001009508A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR20010075485A (ko) | 2001-08-09 |
WO2001009508A1 (de) | 2001-02-08 |
ATE294326T1 (de) | 2005-05-15 |
DE50010159D1 (de) | 2005-06-02 |
US6644279B1 (en) | 2003-11-11 |
CZ296995B6 (cs) | 2006-08-16 |
EP1117924A1 (de) | 2001-07-25 |
KR100691207B1 (ko) | 2007-03-08 |
CZ20011139A3 (cs) | 2002-01-16 |
DE19936534A1 (de) | 2001-03-01 |
JP2003506613A (ja) | 2003-02-18 |
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