EP1262656A2 - Dispositif d'alimentation en combustible - Google Patents

Dispositif d'alimentation en combustible Download PDF

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Publication number
EP1262656A2
EP1262656A2 EP02100475A EP02100475A EP1262656A2 EP 1262656 A2 EP1262656 A2 EP 1262656A2 EP 02100475 A EP02100475 A EP 02100475A EP 02100475 A EP02100475 A EP 02100475A EP 1262656 A2 EP1262656 A2 EP 1262656A2
Authority
EP
European Patent Office
Prior art keywords
common rail
cross
bore
longitudinal
fuel
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.)
Withdrawn
Application number
EP02100475A
Other languages
German (de)
English (en)
Other versions
EP1262656A3 (fr
Inventor
Michael Wirkowski
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1262656A2 publication Critical patent/EP1262656A2/fr
Publication of EP1262656A3 publication Critical patent/EP1262656A3/fr
Withdrawn legal-status Critical Current

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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
    • 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 fuel supply device for an internal combustion engine with a low pressure pump and a high pressure pump via which an injection device of the direct injection type fuel can be supplied under pressure is, wherein the injection device at least one common Rail and at least one through a cross hole with the common Rail connected line includes.
  • Such a common rail injection system is known from DE 198 59 913 A1 in a fuel supply device for a Internal combustion engine known that a low pressure and a High pressure pump includes.
  • this object is achieved with a fuel supply device of the type mentioned in the beginning, that the transverse bore has a cross section which is in the circumferential direction of the common rail stretched and lengthways of the common rail is compressed.
  • An advantage of the invention is that the rail tensions arising from the operating pressure are minimized, which makes higher pressures manageable and the fatigue strength of the common rail is increased.
  • this object is achieved in that that the wall of a cross hole in a wall of the rail is funnel-shaped for the interior of the rail.
  • the measures can either be used individually, or they can be combined with a funnel-shaped or conical widening towards the central axis of the common rail Longitudinal section shape of the cross hole.
  • the invention can also be used for the common rail the injection lines discharging the injection valves as well use for a supply line, provided that this is the fuel feeds through a cross hole in the wall of the common rail.
  • Injection and supply lines under one are preferred 90 ° angle connected to the rail, but are also from it deviating acute angles permitted. Even with these leaves advocate the invention.
  • An injection device comprises a high-pressure pump 1 for Supply of fuel under high pressure to a distribution rail 2, from which the fuel via supply lines 3, 4 to two common rails 5, 6 is promoted. These become the fuel is supplied to individual valves 7 to 9 or 10 to 12.
  • the use of the distribution rail 2 is necessary if the valves of the cylinder rows are arranged far apart are, as is the case with the V-engine.
  • the Valves 7 to 12 are each via an injection line 13 connected to the common rail 5 or 6.
  • the injection lines 13 are at a 90 ° angle or an acute angle connected to the common rail 5 or 6.
  • 5 bores are provided in the rails, their cross section from the conventional circular cross section 14 differs, as in Fig. 2 by representation of two different cross sections 15 and 16 on a common rail 17th is shown with a longitudinal bore 18. It stretches the longitudinal axis L of the cross sections 15 and 16 more in the circumferential direction A than in the known cross section 14. Simultaneously the cross sections 15 and 16 are compressed in the longitudinal direction B.
  • the cross section 15 has an elliptical or oval shape, while the cross section 16 is slit-shaped and two at least substantially parallel to each other Edges 19 and rounded corners 20.
  • the cross sections 15 and 16 are sized to have the same cross-sectional area as the cross section 14 and thus through the holes with the cross sections 15 and 16 the same fuel supply performance as takes place through the bore with the cross section 14.
  • the cross-sectional shape of the cross sections 15 and 16 achieved that the cross sections 15 and 16 in the circumferential direction A as far away from a central axis M on the Longitudinal bore 18 hit and thus a wall 21 (Fig. 3) the hole with the cross section 15 or 16 more tangential into a wall 22 of the longitudinal bore 18, so closer to a tangent 23 is closer than to the central axis M extending wall 24 of the conventional bore with the circular cross-section 14 and the same cross-sectional area. It is understood that the diameter of the longitudinal bore 18 represents the maximum diameter of the cross hole.
  • a transverse bore 25 extends from an outer lateral surface 26 of a common rail 17 funnel-shaped or conical to the longitudinal bore 18 and thus completely, as shown, or approximately to the diameter of the longitudinal bore 18 is expanded. So the diameter of the cross hole goes 25 funnel-shaped into the wall 22 of the longitudinal bore 18 about.
  • feed lines 3 and 4 are also transverse to the longitudinal direction B of the common rails 5, 6 are arranged the cross-sections of the cross holes over which the fuel is then is injected into the common rail 5, 6, as shown in Figs. 2 and 3.
  • the invention provides a fuel supply device with an injection device created in the same Cross-sectional area compared to a known one circular cross-sectional area of a cross hole in one Common rail by extending the cross-sectional area in the circumferential direction and compression in the longitudinal direction of the longitudinal bore in the common rail a cross hole with an elliptical or slot-shaped cross-sectional area is created.
  • alternative or in addition to this measure is the cross hole from the outer surface of the common rail towards expanded to the longitudinal bore such that the intersection of the holes the transverse bore to the longitudinal bore in the circumferential direction is enlarged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP02100475A 2001-05-31 2002-05-10 Dispositif d'alimentation en combustible Withdrawn EP1262656A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10126617 2001-05-31
DE2001126617 DE10126617B4 (de) 2001-05-31 2001-05-31 Kraftstoffzuführvorrichtung

Publications (2)

Publication Number Publication Date
EP1262656A2 true EP1262656A2 (fr) 2002-12-04
EP1262656A3 EP1262656A3 (fr) 2004-08-25

Family

ID=7686816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02100475A Withdrawn EP1262656A3 (fr) 2001-05-31 2002-05-10 Dispositif d'alimentation en combustible

Country Status (2)

Country Link
EP (1) EP1262656A3 (fr)
DE (1) DE10126617B4 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1435454A1 (fr) * 2002-12-30 2004-07-07 Robert Bosch Gmbh Une pièce, qui soutiene une pression interne, surtout pour un moteur à explosion avec une pompe à carburant à haute pression
WO2007073984A1 (fr) * 2005-12-23 2007-07-05 Robert Bosch Gmbh Composant destine a etre utilise dans des installations d'injection de carburant
DE102008050859A1 (de) * 2008-10-08 2010-04-15 Hirschvogel Umformtechnik Gmbh Hochdruckdieseleinspritzteil
WO2012150075A1 (fr) * 2011-05-02 2012-11-08 Robert Bosch Gmbh Distributeur de carburant
FR3043750A1 (fr) * 2015-11-17 2017-05-19 Coutier Moulage Gen Ind Conduit pour fluide sous pression, procede de fabrication d’un tel conduit et procede de transport mettant en œuvre un tel conduit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004027051B4 (de) * 2004-06-03 2009-08-06 Audi Ag Kraftstoffverteileranlage zur Zudosierung von Kraftstoff zu einer Brennkraftmaschine sowie Verfahren zur Zudosierung von Kraftstoff
DE102008054805B4 (de) 2008-12-17 2022-07-07 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859913A1 (de) 1997-12-25 1999-07-08 Hitachi Ltd Kraftstoffzufuhrvorrichtung für Brennkraftmaschinen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2803383B2 (ja) * 1991-04-08 1998-09-24 トヨタ自動車株式会社 高圧流体用継手
FR2756609B1 (fr) * 1996-11-30 2002-02-15 Usui Kokusai Sangyo Kk Structure de liaison pour le montage de connecteurs de derivation sur un collecteur commun
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
DE19936685A1 (de) * 1999-08-04 2001-02-22 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
DE19948341A1 (de) * 1999-10-07 2001-04-19 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
DE19949963A1 (de) * 1999-10-16 2001-04-26 Bosch Gmbh Robert Verfahren zum Herstellen eines Kraftstoffhochdruckspeichers
DE10010944A1 (de) * 2000-03-06 2001-09-20 Bosch Gmbh Robert Kraftstoffhochdruckspeicher

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859913A1 (de) 1997-12-25 1999-07-08 Hitachi Ltd Kraftstoffzufuhrvorrichtung für Brennkraftmaschinen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1435454A1 (fr) * 2002-12-30 2004-07-07 Robert Bosch Gmbh Une pièce, qui soutiene une pression interne, surtout pour un moteur à explosion avec une pompe à carburant à haute pression
WO2007073984A1 (fr) * 2005-12-23 2007-07-05 Robert Bosch Gmbh Composant destine a etre utilise dans des installations d'injection de carburant
DE102008050859A1 (de) * 2008-10-08 2010-04-15 Hirschvogel Umformtechnik Gmbh Hochdruckdieseleinspritzteil
WO2012150075A1 (fr) * 2011-05-02 2012-11-08 Robert Bosch Gmbh Distributeur de carburant
CN103502625A (zh) * 2011-05-02 2014-01-08 罗伯特·博世有限公司 燃料分配器
CN103502625B (zh) * 2011-05-02 2017-06-09 罗伯特·博世有限公司 燃料分配器
FR3043750A1 (fr) * 2015-11-17 2017-05-19 Coutier Moulage Gen Ind Conduit pour fluide sous pression, procede de fabrication d’un tel conduit et procede de transport mettant en œuvre un tel conduit

Also Published As

Publication number Publication date
DE10126617B4 (de) 2005-05-25
EP1262656A3 (fr) 2004-08-25
DE10126617A1 (de) 2002-12-12

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