EP0873472B1 - Kraftstoffeinspritzsystem - Google Patents
Kraftstoffeinspritzsystem Download PDFInfo
- Publication number
- EP0873472B1 EP0873472B1 EP97932718A EP97932718A EP0873472B1 EP 0873472 B1 EP0873472 B1 EP 0873472B1 EP 97932718 A EP97932718 A EP 97932718A EP 97932718 A EP97932718 A EP 97932718A EP 0873472 B1 EP0873472 B1 EP 0873472B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- injection system
- pressure fuel
- fuel injection
- accumulator
- 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
-
- 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
- F02M55/004—Joints; Sealings
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
Definitions
- the invention is based on a fuel injection system according to the genus of the main claim.
- a fuel injection system known from EP 0 507 191 consists of the high-pressure fuel accumulator a prefabricated pipe, pushed onto the connection sleeves are used to connect the fuel injection valves or the high pressure line coming from the high pressure fuel pump.
- Such a high-pressure fuel accumulator is proportional bulky and therefore requires a large installation space. He is also relatively heavy and his hydraulic behavior is unfavorable.
- FIG. 1 shows a section through the spherical High-pressure fuel accumulator with the fastening elements
- Figure 2 shows a detail of a connection
- 3 shows a section in a different plane than in FIG. 1.
- a high-pressure fuel accumulator 1 has the shape of a hollow sphere 2, which is composed of two hollow hemispheres 3 and 4 is. Both hemispheres 3 and 4 are in a forging process manufactured and then on their annular Contact surfaces welded together. Wearing a weld the reference number 5. The two hollow hemispheres 3 and 4 can also be screwed together in a manner not shown his.
- the two hollow hemispheres 3 and 4 have forging molded, corresponding eyelet-like Fasteners 6, 7, 8 and 9, preferably after welding with a through hole 10 or 11 are provided for fastening screws, not shown, with which the high-pressure fuel accumulator 1 in a vehicle is attachable.
- connection bores 12, 13, 14 and 15 are provided in a plane perpendicular to the weld seam 5, which are intended for connecting lines which serve to connect the high-pressure fuel accumulator 1 to electrically controlled injection valves , Neither the lines nor the injectors are shown.
- the four connection bores 12 to 15 are diametrically opposed in pairs and each have an internal thread 16 and a smaller diameter in diameter, through bore 18 adjoining the internal thread 16 via a hollow cone sealing surface 17, which has the connection to an internal storage chamber 19. These conditions are shown on an enlarged scale in FIG.
- the storage chamber 19 has, for example, a volume of approximately 33 cm 3 .
- connection bore 20 can be seen to which a Pressure feed from a high-pressure fuel delivery pump can be connected.
- the connection hole 20 opposite is still a further connection bore 21 is provided in the one Pressure sensor or a control valve can be screwed in.
- connection bores 20 and 21 are also with a Internal thread 16, with a sealing surface 17 and with a Through hole 18 provided.
- connection holes 12 to 15 and 20 and 21 are high pressure lines, not shown tight and firmly applicable, and these high pressure lines are then with the through holes 18 the storage chamber 19 connected.
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 (3)
- Kraftstoffeinspritzsystem für Brennkraftmaschinen mit einer Kraftstoffhochdruckpumpe, die einen Kraftstoffhochdruckspeicher (1) mit Kraftstoff versorgt, aus dem der Kraftstoff elektrisch gesteuerten Einspritzventilen zur Einspritzung in die Brennräume einer selbstzündenden Brennkraftmaschine zugeführt wird, wobei der Kraftstoffhochdruckspeicher (1) mit Anschlußbohrungen (12, 13, 14, 15) für die Kraftstoffzufuhr und die Kraftstoffabfuhr und mit Befestigungselementen (6, 7, 8, 9) versehen ist, dadurch gekennzeichnet, daß der Kraftstoffhochdruckspeicher (1) die Form einer Hohlkugel (2) aufweist.
- Kraftstoffeinspritzsystem nach Anspruch 1, dadurch gekennzeichnet, daß der hohlkugelförmige Kraftstoffhochdruckspeicher (1) aus zwei geschmiedeten hohlen Halbkugeln (3 und 4) hergestellt ist.
- Kraftstoffeinspritzsystem nach Anspruch 2, dadurch gekennzeichnet, daß die beiden hohlen Halbkugeln (3 und 4) an ihren ringförmigen Berührungsflächen mittels Schweißnaht (5) zusammengefügt sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19647049 | 1996-11-14 | ||
DE19647049A DE19647049A1 (de) | 1996-11-14 | 1996-11-14 | Kraftstoffeinspritzsystem |
PCT/DE1997/001383 WO1998021469A1 (de) | 1996-11-14 | 1997-07-02 | Kraftstoffeinspritzsystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0873472A1 EP0873472A1 (de) | 1998-10-28 |
EP0873472B1 true EP0873472B1 (de) | 2002-03-20 |
Family
ID=7811641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97932718A Expired - Lifetime EP0873472B1 (de) | 1996-11-14 | 1997-07-02 | Kraftstoffeinspritzsystem |
Country Status (9)
Country | Link |
---|---|
US (1) | US6095119A (de) |
EP (1) | EP0873472B1 (de) |
JP (1) | JP2000504384A (de) |
KR (1) | KR19990076925A (de) |
CN (1) | CN1075164C (de) |
DE (2) | DE19647049A1 (de) |
ES (1) | ES2176757T3 (de) |
RU (1) | RU2177076C2 (de) |
WO (1) | WO1998021469A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103644054A (zh) * | 2013-12-05 | 2014-03-19 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | 分层式燃油分配器 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2778950B1 (fr) | 1998-05-19 | 2000-08-11 | Cideb | Dispositif de distribution de carburant pour moteur a combustion interne |
GB9824366D0 (en) * | 1998-11-07 | 1998-12-30 | Lucas Ind Plc | Fuel system |
DE19948257A1 (de) * | 1999-10-07 | 2001-04-12 | Bosch Gmbh Robert | Kraftstoffhochdruckspeicher |
DE10161920A1 (de) * | 2001-12-17 | 2002-09-26 | Bosch Gmbh Robert | Modular aufgebauter Hochdruckspeicherraum |
US6929288B2 (en) * | 2001-12-20 | 2005-08-16 | Usui Kokusai Sangyo Kaisha Limited | Connecting structure of branch connector in fuel pressure accumulating container |
DE10247524B4 (de) * | 2002-10-11 | 2004-08-12 | Siemens Ag | Kraftstoffverteiler |
JP2004150316A (ja) * | 2002-10-29 | 2004-05-27 | Denso Corp | 蓄圧式燃料噴射装置 |
DE10305078A1 (de) * | 2003-02-07 | 2004-04-22 | Robert Bosch Gmbh | Kraftstoffhochdruckspeicher |
JP5236410B2 (ja) * | 2008-09-24 | 2013-07-17 | 臼井国際産業株式会社 | コモンレール |
DE102010001252A1 (de) * | 2010-01-27 | 2011-07-28 | Robert Bosch GmbH, 70469 | Kraftstoffeinspritzsystem mit integriertem Hochdruckspeicher an einem Zylinderkopf |
JP5548501B2 (ja) * | 2010-03-31 | 2014-07-16 | 本田技研工業株式会社 | V型エンジンの燃料供給装置 |
DE102011007781A1 (de) * | 2011-04-20 | 2012-10-25 | Continental Automotive Gmbh | Steckpumpe |
DE102011018429A1 (de) | 2011-04-21 | 2012-10-25 | Winkelmann Powertrain Components Gmbh & Co. Kg | Vorrichtung zum Zuführen von Kraftstoff zu Einspritzventilen einer Brennkraftmaschine |
CN103696890A (zh) * | 2014-01-10 | 2014-04-02 | 中山职业技术学院 | 一种高压共轨管 |
DE102015219415B4 (de) | 2015-10-07 | 2020-07-09 | Vitesco Technologies GmbH | Kraftstoffhochdruckpumpe sowie Kraftstoffversorgungseinrichtung für eine Verbrennungskraftmaschine, insbesondere eines Kraftwagens |
DE102015219419B3 (de) * | 2015-10-07 | 2017-02-23 | Continental Automotive Gmbh | Pumpeinrichtung sowie Kraftstoffversorgungseinrichtung für eine Verbrennungskraftmaschine und Mischeinrichtung, insbesondere für einen Kraftwagen |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5109822A (en) * | 1989-01-11 | 1992-05-05 | Martin Tiby M | High pressure electronic common-rail fuel injection system for diesel engines |
US5035221A (en) * | 1989-01-11 | 1991-07-30 | Martin Tiby M | High pressure electronic common-rail fuel injection system for diesel engines |
IT1238509B (it) * | 1989-11-07 | 1993-08-18 | Weber Srl | Collettore di carburante ad elevata pressione atto ad essere inserito tra una pompa di alimentazione del carburante ed almeno una valvola di iniezione del carburante azionata elettromagneticamente |
JP2789481B2 (ja) * | 1989-12-08 | 1998-08-20 | 臼井国際産業株式会社 | フユーエルデリバリパイプ |
EP0507191B1 (de) | 1991-04-04 | 1994-09-21 | Toyota Jidosha Kabushiki Kaisha | Kraftstoffeinspritzvorrichtung einer Brennkraftmaschine |
US5307782A (en) * | 1992-03-16 | 1994-05-03 | Davco Manufacturing Corporation | Combined pressure wave suppressor, air/vapor purge and check valve |
US5471959A (en) * | 1994-08-31 | 1995-12-05 | Sturman; Oded E. | Pump control module |
-
1996
- 1996-11-14 DE DE19647049A patent/DE19647049A1/de not_active Withdrawn
-
1997
- 1997-07-02 US US09/101,633 patent/US6095119A/en not_active Expired - Fee Related
- 1997-07-02 JP JP10522004A patent/JP2000504384A/ja active Pending
- 1997-07-02 KR KR1019980705053A patent/KR19990076925A/ko not_active Application Discontinuation
- 1997-07-02 RU RU98114977/06A patent/RU2177076C2/ru not_active IP Right Cessation
- 1997-07-02 CN CN97191631A patent/CN1075164C/zh not_active Expired - Fee Related
- 1997-07-02 EP EP97932718A patent/EP0873472B1/de not_active Expired - Lifetime
- 1997-07-02 ES ES97932718T patent/ES2176757T3/es not_active Expired - Lifetime
- 1997-07-02 DE DE59706680T patent/DE59706680D1/de not_active Expired - Lifetime
- 1997-07-02 WO PCT/DE1997/001383 patent/WO1998021469A1/de not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103644054A (zh) * | 2013-12-05 | 2014-03-19 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | 分层式燃油分配器 |
CN103644054B (zh) * | 2013-12-05 | 2016-03-30 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | 分层式燃油分配器 |
Also Published As
Publication number | Publication date |
---|---|
EP0873472A1 (de) | 1998-10-28 |
JP2000504384A (ja) | 2000-04-11 |
DE59706680D1 (de) | 2002-04-25 |
CN1075164C (zh) | 2001-11-21 |
DE19647049A1 (de) | 1998-05-20 |
CN1207158A (zh) | 1999-02-03 |
US6095119A (en) | 2000-08-01 |
WO1998021469A1 (de) | 1998-05-22 |
ES2176757T3 (es) | 2002-12-01 |
KR19990076925A (ko) | 1999-10-25 |
RU2177076C2 (ru) | 2001-12-20 |
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