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EP1608869B1 - Moteur a combustion interne comprenant un systeme d'injection a accumulateur - Google Patents

Moteur a combustion interne comprenant un systeme d'injection a accumulateur Download PDF

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Publication number
EP1608869B1
EP1608869B1 EP04718200A EP04718200A EP1608869B1 EP 1608869 B1 EP1608869 B1 EP 1608869B1 EP 04718200 A EP04718200 A EP 04718200A EP 04718200 A EP04718200 A EP 04718200A EP 1608869 B1 EP1608869 B1 EP 1608869B1
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
high pressure
engine according
pressure
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
Application number
EP04718200A
Other languages
German (de)
English (en)
Other versions
EP1608869A1 (fr
Inventor
Kai-Uwe MÜNCH
Rolf Preuss
Jörg SCHLÜTER
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.)
Deutz AG
Original Assignee
Deutz 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 Deutz AG filed Critical Deutz AG
Publication of EP1608869A1 publication Critical patent/EP1608869A1/fr
Application granted granted Critical
Publication of EP1608869B1 publication Critical patent/EP1608869B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F02M63/023—Means for varying pressure in common rails
    • F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
    • F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail
    • 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
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/08—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by two or more pumping elements with conjoint outlet or several pumping elements feeding one engine cylinder
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • 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

Definitions

  • the invention relates to an internal combustion engine having an injection system, which is designed as a high-pressure storage system, wherein at least one high-pressure pump is connected via a high-pressure supply line with a tubular high-pressure accumulator, which laterally offset from the associated injectors arranged connecting pieces, where high pressure lines are connected, the valve-controlled Establish flow connections to injectors used in the cylinder head of the internal combustion engine, which protrude into working spaces formed by the cylinders, the piston and the cylinder head.
  • Such an internal combustion engine is known from EP-A-0 507 191.
  • This internal combustion engine has a tubular high-pressure accumulator, which is attached to the internal combustion engine and is connected via two lines of equal length with a plurality of fuel pumps. With this memory, the injection elements of the individual cylinders are also connected via lines of equal length.
  • Another internal combustion engine is known from DE 199 365 34 A1.
  • This internal combustion engine has a tubular high-pressure accumulator which is attached to the internal combustion engine.
  • the peculiarity of this tubular high-pressure accumulator is that a continuous terminal block is formed on the high-pressure accumulator or connecting pieces are formed, which are designed so wide that the holes for connecting the high-pressure lines can be positioned at various points of the connecting piece. This should enable the use of a high-pressure storage blank for similar internal combustion engines.
  • the invention has for its object to provide an internal combustion engine with a high-pressure storage system, in which the variety of parts in a simple assembly of the injection system is low.
  • the connecting pieces are arranged laterally offset from the associated injection valves, and that the absolute extent of the offset in all injectors of a row of cylinders of the internal combustion engine is the same.
  • the lateral offset of the connecting piece, relative to the associated injection valves, which are each provided with an electrically actuated control block and are preferably used centrally to the associated cylinders in the cylinder head cylinder preferably a common cylinder head allows easy installation of the components of the injection system, there For example, first the injectors with optional laterally led out of the cylinder head high-pressure line connections and the tubular high-pressure accumulator are mounted and then the corresponding high-pressure lines between the injectors or the high-pressure line connections and the high-pressure storage system can be easily used later by the lateral offset of the connections.
  • the high pressure accumulator system is located in close proximity to the injectors to keep the length of the high pressure lines short to provide a hydraulically rigid injection system. Due to the fact that the absolute extent of the offset in all cylinders of a cylinder bank is the same and, in particular, corresponds to the spacing of the injection valves in the cylinder head, the injection lines can at least all be of the same length. This is advantageous for tuning the injection system.
  • the offset in at least one end-side cylinder is different from the orientation of the offset in the other cylinders. This design ensures that the high-pressure storage system is compact and, in particular, does not extend beyond a row of cylinders.
  • two differently shaped high pressure lines for the cylinder bank of the internal combustion engine are present. This is the case when the injection valves are provided with a lateral high-pressure line connection and this is pivoted at an angle to the transverse axis of the cylinder head. If the high-pressure line connection is aligned exactly transversely to the longitudinal axis of the cylinder head, all the high-pressure lines can be shaped identically in an alternative embodiment.
  • the at least one high-pressure pump is close to the cylinder head in a housing, preferably the crankcase of the internal combustion engine, used and is actuated by an injection pump cam which is arranged on the gas exchange camshaft of the internal combustion engine.
  • two high-pressure pumps spaced next to each other, are assigned to adjacent cylinders. This makes it possible to resort to compact low-cost high-pressure pumps. Furthermore, through the use of two high-pressure pumps equalization of the pressure build-up in the high-pressure accumulator is achieved.
  • the high-pressure supply lines which connect the high-pressure pumps to the high-pressure accumulator are of the same design. As a result, the component cost is minimized here.
  • a control block for controlling or regulating the to be set in the high-pressure accumulator Fuel pressure input side of the arranged at least one high-pressure pump.
  • the control block is arranged next to a high-pressure pump or between the two high-pressure pumps.
  • the control block may be integrated in the console of the fuel filter. This design provides a very compact injector.
  • the single FIGURE shows an overall view of the essential components of the storage injection system according to the invention.
  • fuel is conveyed from a fuel tank, not shown, via a supply line 2 in the console 3 of a fuel filter 4 in cup design.
  • the fuel is introduced via a feed line 5 into a control block 6.
  • the control block 6 includes a pressure control valve and a constantly evacuating a small amount of fuel zero delivery throttle, wherein the discharged from the pressure control valve and the zero feed throttle amount of fuel is discharged into a return line 9.
  • the pressure control valve of the two high-pressure pumps 7a, 7b determined via a supply line 8 fuel quantity.
  • Abzu tenunder fuel is returned via the return line 9 in the console 3 of the fuel filter 4.
  • the high-pressure pumps 7a, 7b are connected to a tubular high-pressure accumulator 11 via similarly designed high-pressure supply lines 10a, 10b. Furthermore, connecting pieces 12a, 12b, 12c, 12d, 12e, 12f are provided on the high-pressure accumulator 11, to which high-pressure lines 13a, 13b, 13c, 13d, 13e, 13f are fastened, which are connected to injectors or high-pressure line connections, not shown.
  • the high-pressure accumulator 11 is fixed via fasteners 14a, 14b, 14c to the internal combustion engine, in particular to the cylinder head.
  • the high-pressure accumulator 11 has a connection for a pressure sensor 15 and, opposite, a connection for a diversion line 16, which is connected to the return line 9.
  • the connection for the diversion line 16 is preceded by a pressure limiting valve 17.
  • the high-pressure pumps 7a, 7b are inserted directly into the crankcase of the internal combustion engine and have roller tappets 18 which roll on injection pump cams which are arranged on the camshaft of the internal combustion engine between the gas exchange cams of a cylinder unit.
  • the gas exchange sockets, the injection pump cam and bearing areas of a cylinder unit adjacent to the gas exchange socks form a continuous unit without punctures.
  • These high-pressure pumps 7a, 7b each have a plunger actuated by the roller tappet 18, which plunger is designed without a control edge and thus always conveys a predetermined quantity of fuel when appropriately supplied.
  • the fuel pressure in the high-pressure accumulator 11 is controlled by the pressure regulating valve of the control block 6 by controlling the amount of fuel supplied to the high-pressure pumps 7a, 7b.
  • the control block 6 is arranged in the illustrated embodiment between the high-pressure pumps 7a, 7b. In an alternative embodiment, this control block 6 may also be integrated into the console 3 of the fuel filter 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (10)

  1. Moteur à combustion interne avec un système d'injection, qui est conçu sous la forme d'un système d'accumulation haute pression, au moins une pompe haute pression (7a, 7b) étant reliée via un conduit d'alimentation haute pression (10a, 10b) avec un accumulateur haute pression (11) tubulaire, qui comporte des tubulures de raccordement (12a, 12b, 12c, 12d, 12e, 12f) latéralement déportées par rapport aux injecteurs correspondants, sur lesquelles sont branchés des conduits haute pression (13a, 13b, 13c, 13d, 13e, 13f), qui commandés par des soupapes créent des liaisons par écoulement vers des injecteurs intégrés dans la culasse de cylindre du moteur à combustion interne, qui saillissent dans des espaces de travail formés par les cylindres, les pistons et la culasse de cylindre, caractérisé en ce que sur tous les injecteurs, la dimension absolue du décalage est égale à une rangée de cylindres du moteur à combustion interne.
  2. Moteur à combustion interne selon la revendication 1, caractérisé en ce que sur au moins un cylindre côté extrémité, le décalage est opposé à l'orientation du décalage sur les autres cylindres.
  3. Moteur à combustion interne selon la revendication 1 ou la revendication 2, caractérisé en ce que deux conduits haute pression de forme différente (13a, 13b, 13c, 13d, 13e, 13f) sont présents pour la rangée de cylindres.
  4. Moteur à combustion interne selon la revendication 1 ou la revendication 2, caractérisé en ce que les conduits haute pression (13a, 13b, 13c, 13d, 13e, 13f) d'une rangée de cylindres ont la même forme.
  5. Moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que la au moins une pompe haute pression (7) est intégrée à proximité de la culasse de cylindre dans un carter, de préférence le carter de vilebrequin du moteur à combustion interne et est actionnée par une came de pompe d'injection, qui est disposée sur l'arbre à cames d'échange de gaz du moteur à combustion interne.
  6. Moteur à combustion interne selon la revendication 5, caractérisé en ce que deux pompes haute pression (7a, 7b), situées côte à côte à distance sont associées à des cylindres voisins.
  7. Moteur à combustion interne selon la revendication 6, caractérisé en ce que les conduits d'alimentation haute pression (10a, 10b) ont la même forme.
  8. Moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un bloc de commande (6) pour la commande ou pour le réglage de la pression de carburant à établir dans l'accumulateur haute pression (11) est disposé côté entrée de la au moins une pompe haute pression (7).
  9. Moteur à combustion interne selon la revendication 8, caractérisé en ce que le bloc de commande (6) est disposé à côté de l'une des pompes haute pression (7) ou entre les deux pompes haute pression (7a, 7b).
  10. Moteur à combustion interne selon la revendication 8, caractérisé en ce que le bloc de commande (6) est intégré dans la console (3) d'un filtre à carburant (4) disposé entre la pompe de transport de carburant (1) et la au moins une pompe haute pression (7).
EP04718200A 2003-03-28 2004-03-06 Moteur a combustion interne comprenant un systeme d'injection a accumulateur Expired - Lifetime EP1608869B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10314029A DE10314029A1 (de) 2003-03-28 2003-03-28 Brennkraftmaschine mit einem Speichereinspritzsystem
DE10314029 2003-03-28
PCT/EP2004/002312 WO2004085830A1 (fr) 2003-03-28 2004-03-06 Moteur a combustion interne comprenant un systeme d'injection a accumulateur

Publications (2)

Publication Number Publication Date
EP1608869A1 EP1608869A1 (fr) 2005-12-28
EP1608869B1 true EP1608869B1 (fr) 2007-02-28

Family

ID=32946285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04718200A Expired - Lifetime EP1608869B1 (fr) 2003-03-28 2004-03-06 Moteur a combustion interne comprenant un systeme d'injection a accumulateur

Country Status (7)

Country Link
US (1) US7377263B2 (fr)
EP (1) EP1608869B1 (fr)
CN (1) CN1761814B (fr)
AT (1) ATE355456T1 (fr)
BR (1) BRPI0408901B1 (fr)
DE (2) DE10314029A1 (fr)
WO (1) WO2004085830A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4629724B2 (ja) * 2007-12-20 2011-02-09 三菱自動車工業株式会社 インジェクタの取付け構造
GB0803908D0 (en) * 2008-03-03 2008-04-09 Delphi Tech Inc Fuel delivery system
GB2463256B (en) * 2008-09-05 2012-10-31 Gm Global Tech Operations Inc Fuel injection apparatus for internal combustion engines
WO2010075904A1 (fr) * 2008-12-05 2010-07-08 Gm Global Technology Operations, Inc. Appareil d'injection de carburant pour moteurs à combustion interne
DE102009051065B3 (de) * 2009-10-28 2011-01-20 Benteler Automobiltechnik Gmbh Kraftstoffverteiler
EP2690281A1 (fr) * 2012-07-23 2014-01-29 Continental Automotive GmbH Ensemble de rail de carburant
DE102014223060A1 (de) * 2014-11-12 2016-05-12 Robert Bosch Gmbh Brennstoffeinspritzanlage und Brennstoffspeicher für Brennstoffeinspritzanlagen
DE102014223062A1 (de) * 2014-11-12 2016-05-12 Robert Bosch Gmbh Brennstoffeinspritzanlage und Brennstoffspeicher einer Brennstoffeinspritzanlage
JP7035577B2 (ja) * 2018-02-02 2022-03-15 マツダ株式会社 エンジンの燃料供給装置
EP3983663A4 (fr) * 2019-07-31 2023-06-14 Cummins, Inc. Architecture de système de carburant à rampe modulaire et évolutive

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507191A1 (fr) * 1991-04-04 1992-10-07 Toyota Jidosha Kabushiki Kaisha Dispositif d'injection de combustible pour moteur à combustion interne

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DE19641952C5 (de) * 1996-10-11 2005-06-02 Daimlerchrysler Ag Kraftstofführung für eine mehrzylindrige Brennkraftmaschine mit Aufnahmebohrungen für Steckpumpen
DE19731643A1 (de) 1997-07-23 1998-09-10 Daimler Benz Ag Hochdruckeinspritzsystem für eine Zylinderbänke aufweisende Dieselbrennkraftmaschine
GB9727421D0 (en) * 1997-12-30 1998-02-25 Perkins Ltd Apparatus and method for connecting a fuel pressure tube to a fuel injector of an internal combustion engine
JP3695213B2 (ja) * 1999-04-02 2005-09-14 いすゞ自動車株式会社 コモンレール式燃料噴射装置
DE19936534A1 (de) 1999-08-03 2001-03-01 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
EP1101931B1 (fr) 1999-11-19 2006-08-30 CRT Common Rail Technologies AG Système d'injection à haute pression avec common rail
DE10045280C2 (de) 2000-09-13 2003-10-02 Orange Gmbh Schwerölbetriebene Großkolben-Brennkraftmaschine
JP4442048B2 (ja) 2001-04-12 2010-03-31 トヨタ自動車株式会社 内燃機関の高圧燃料供給装置
JP4032383B2 (ja) * 2002-09-25 2008-01-16 臼井国際産業株式会社 燃料レール及び燃料レール用主管並びにこれらの製造方法
US6827065B2 (en) * 2003-04-08 2004-12-07 General Motors Corporation Diesel injection system with dual flow fuel line

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507191A1 (fr) * 1991-04-04 1992-10-07 Toyota Jidosha Kabushiki Kaisha Dispositif d'injection de combustible pour moteur à combustion interne

Also Published As

Publication number Publication date
DE10314029A1 (de) 2004-10-07
CN1761814A (zh) 2006-04-19
ATE355456T1 (de) 2006-03-15
EP1608869A1 (fr) 2005-12-28
BRPI0408901A (pt) 2006-03-28
BRPI0408901B1 (pt) 2013-04-02
DE502004003042D1 (de) 2007-04-12
CN1761814B (zh) 2011-04-27
US7377263B2 (en) 2008-05-27
US20060185649A1 (en) 2006-08-24
WO2004085830A1 (fr) 2004-10-07

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