EP0873472A1 - Systeme d'injection de carburant - Google Patents

Systeme d'injection de carburant

Info

Publication number
EP0873472A1
EP0873472A1 EP97932718A EP97932718A EP0873472A1 EP 0873472 A1 EP0873472 A1 EP 0873472A1 EP 97932718 A EP97932718 A EP 97932718A EP 97932718 A EP97932718 A EP 97932718A EP 0873472 A1 EP0873472 A1 EP 0873472A1
Authority
EP
European Patent Office
Prior art keywords
fuel
pressure fuel
injection system
hollow
fuel 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.)
Granted
Application number
EP97932718A
Other languages
German (de)
English (en)
Other versions
EP0873472B1 (fr
Inventor
Claus Maier
Stefan Sundermann
Antonio Balboa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0873472A1 publication Critical patent/EP0873472A1/fr
Application granted granted Critical
Publication of EP0873472B1 publication Critical patent/EP0873472B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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 preamble of the main claim.
  • the high-pressure fuel accumulator consists of a prefabricated pipe, onto which connecting sleeves are pushed for connecting the fuel injection valves or the high-pressure line coming from the high-pressure fuel pump.
  • Such a high-pressure fuel accumulator is relatively bulky and therefore requires a large installation space. It is also relatively heavy and its hydraulic behavior is unfavorable.
  • FIG. 1 shows a section through the spherical high-pressure fuel accumulator with the fastening elements
  • FIG. 2 shows a detail of a connection
  • FIG. 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. Both hemispheres 3 and 4 are produced in one forging process and then welded together on their annular contact surfaces. A weld has the reference number 5. The two hollow hemispheres 3 and 4 can also be screwed together in a manner not shown.
  • the two hollow hemispheres 3 and 4 have forged molded, mutually corresponding eyelet-like fastening elements 6, 7, 8 and 9, which are preferably provided after welding with a through hole 10 and 11 for fastening screws, not shown, with which the high-pressure fuel accumulator 1 can be fastened in a vehicle.
  • Connection bores 12, 13, 14 and 15 are provided which are intended for connecting lines which are used to connect the high-pressure fuel accumulator 1 to electrically controlled injection valves. Neither the lines nor the injection valves are shown.
  • the four connection holes 12 to 15 are diametrically opposed in pairs and each have an internal thread 16 and a through bore 18, which is smaller in diameter and connects inwards to the internal thread 16 via a hollow-cone sealing surface 17, and has the connection to an internal storage chamber 19. These conditions are shown on an enlarged scale in FIG.
  • the internal storage chamber 19 has a volume of approximately 33 cm 3 , for example.
  • FIG. 3 shows a section through the ball 2, which lies in a different plane than the section according to FIG. 1.
  • a connection bore 20 can be seen, to which a pressure inlet from a high-pressure fuel delivery pump can be connected.
  • a further connection bore 21 is provided opposite the connection bore 20, into which a
  • Pressure sensor or a control valve can be screwed in.
  • connection bores 20 and 21 are also provided with an internal thread 16, with a sealing surface 17 and with a through bore 18.
  • high-pressure lines can be inserted tightly and firmly in a manner not shown, and these high-pressure lines are then connected via the through bores 18 to the storage chamber 19.

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

La présente invention concerne un système d'injection pour moteurs à combustion interne, doté d'un réservoir de carburant haute pression (1) alimenté par une pompe d'injection haute pression. Le réservoir en question (1) se présente comme une boule creuse (2), résultant du soudage de deux demi-sphères (3) creuses. Le montage du réservoir de carburant haute pression (1) dans un véhicule se fait à l'aide d'éléments de fixation forgés (6, 7, 8, 9).
EP97932718A 1996-11-14 1997-07-02 Systeme d'injection de carburant Expired - Lifetime EP0873472B1 (fr)

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 (fr) 1996-11-14 1997-07-02 Systeme d'injection de carburant

Publications (2)

Publication Number Publication Date
EP0873472A1 true EP0873472A1 (fr) 1998-10-28
EP0873472B1 EP0873472B1 (fr) 2002-03-20

Family

ID=7811641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97932718A Expired - Lifetime EP0873472B1 (fr) 1996-11-14 1997-07-02 Systeme d'injection de carburant

Country Status (9)

Country Link
US (1) US6095119A (fr)
EP (1) EP0873472B1 (fr)
JP (1) JP2000504384A (fr)
KR (1) KR19990076925A (fr)
CN (1) CN1075164C (fr)
DE (2) DE19647049A1 (fr)
ES (1) ES2176757T3 (fr)
RU (1) RU2177076C2 (fr)
WO (1) WO1998021469A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
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
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
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)

* Cited by examiner, † Cited by third party
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 (fr) 1991-04-04 1994-09-21 Toyota Jidosha Kabushiki Kaisha Dispositif d'injection de combustible pour moteur à combustion interne
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9821469A1 *

Also Published As

Publication number Publication date
DE59706680D1 (de) 2002-04-25
WO1998021469A1 (fr) 1998-05-22
US6095119A (en) 2000-08-01
EP0873472B1 (fr) 2002-03-20
DE19647049A1 (de) 1998-05-20
RU2177076C2 (ru) 2001-12-20
JP2000504384A (ja) 2000-04-11
CN1075164C (zh) 2001-11-21
CN1207158A (zh) 1999-02-03
KR19990076925A (ko) 1999-10-25
ES2176757T3 (es) 2002-12-01

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