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DE29521402U1 - Fuel injection system - Google Patents

Fuel injection system

Info

Publication number
DE29521402U1
DE29521402U1 DE29521402U DE29521402U DE29521402U1 DE 29521402 U1 DE29521402 U1 DE 29521402U1 DE 29521402 U DE29521402 U DE 29521402U DE 29521402 U DE29521402 U DE 29521402U DE 29521402 U1 DE29521402 U1 DE 29521402U1
Authority
DE
Germany
Prior art keywords
fuel
pressure
fuel injection
injection system
pressure 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.)
Expired - Lifetime
Application number
DE29521402U
Other languages
German (de)
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
Priority to DE29521402U priority Critical patent/DE29521402U1/en
Publication of DE29521402U1 publication Critical patent/DE29521402U1/en
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
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator

Landscapes

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

Description

• ··

• ··

R. 29819
20.12.95 Bö/BrR.29819
20.12.95 Gust/Br

ROBERT BOSCH GMBH, 70442 Stuttgart
10ROBERT BOSCH GMBH, 70442 Stuttgart
10

Kraftstoffeinspritzsystem
Stand der Technik Fuel injection system
State of the art

Die Erfindung geht von einem Kraftstoffeinspritzsystem nach der Gattung des Patentanspruchs aus. Bei einer solchen durch die EP 0 507 191 bekannten Kraftstoffeinspritzsystem besteht der Kraftstoffhochdruckspeicher aus einem vorgefertigten Rohr, auf das Anschlußmuffen aufgeschoben sind zum Anschluß der Kraftstoffeinspritzventile bzw. der von der Kraftstoffhochdruckpumpe kommenden Hochdruckleitung. Ein solcher Kraftstoffhochdruckspeicher ist verhältnismäßig teuer in der Herstellung und benötigt zudem wegen der aufzusetzenden Anschlußteile einen relativ großen Einbauraum.The invention is based on a fuel injection system according to the type of the patent claim. In such a fuel injection system known from EP 0 507 191, the high-pressure fuel reservoir consists of a prefabricated pipe onto which connection 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 reservoir is relatively expensive to manufacture and also requires a relatively large installation space due to the connection parts that have to be attached.

Vorteile der ErfindungAdvantages of the invention

Durch das erfindungsgemäße Kraftstoffeinspritzsystem mit den Merkmalen des Kennzeichens des Patentanspruchs erhält man nun einen Kraftstoffhochdruckspeicher, der einen geringeren Einbauraum benötigt, da die Anschlüsse wegen der Einstückigkeit mit dem rohrartigen Körper wesentlich kleiner ausgeführt werden können. Zudem nimmt der Hochdruckspeicher damit ein geringeres Gewicht ein. Durch die EP-Bl-O 266 269 ist es zwar bekannt, für Niederdruckeinspritzsysteme einenThe fuel injection system according to the invention with the features of the characterizing part of the patent claim now provides a high-pressure fuel reservoir that requires less installation space, since the connections can be made much smaller due to the fact that they are made in one piece with the tubular body. In addition, the high-pressure reservoir is therefore lighter. EP-Bl-O 266 269 does indeed make it known to use a high-pressure fuel reservoir for low-pressure injection systems.

R. 29819R.29819

rohrartigen Körper als Speicher vorzusehen, der zur Herstellung geschmiedet wurde, doch besteht dieser Speicher aus Aluminium und ist den hohen Drücken einer Kraftstoffeinspritzung für selbstentzündende Brennkraftmaschinen nicht gewachsen.It was possible to provide a tubular body as a reservoir, which was forged for production, but this reservoir is made of aluminum and cannot withstand the high pressures of fuel injection for self-igniting internal combustion engines.

Beschreibung des AusführungsbeispielsDescription of the embodiment

In der Zeichnung ist ein Kraftstoffhochdruckspeicher dargestellt, der aus einem langgestreckten, geschmiedeten rohrförmigen Körper 1 besteht, auf dessen Mantelfläche Anschlußstutzen 2 durch Schmieden angeformt sind und das auf der den Anschlußstutzen 2 diametral gegenüberliegenden Mantelfläche angeformte Befestigungselemente 3 aufweist, in Form von Befestigungsösen mit durch Bohren herzustellenden Durchgangslöchern 4. Auf seiner einen Stirnseite 5 ist der rohrförmige Körper 1 geschlossen und auf seiner anderen Stirnseite als axial gerichteter Anschlußstutzen 6 ausgebildet. Auf der Seite der Befestigungselemente 3 kann der rohrförmige Hochdruckspeicher noch einen weiteren Anschlußstutzen 7 aufweisen, in den z.B. ein Drucksensor oder ein Steuerventil eingeschraubt werden kann. Die Anschlußstutzen 2 werden in üblicher Weise mit einem Schraubgewinde 8 versehen, in die beispielsweise über eine Kegeldichtung 9 Hochdruckverbindungsleitungen dicht eingesetzt werden. Diese Leitungen sind über Radialbohrungen 11 mit dem Innenraum 10 des rohrförmigen Hochdruckspeichers 1 verbunden. Der Anschluß 6 ist zur Verbindung mit einer hier nicht weiter gezeigten Kraftstoffhochdruckförderpumpe 0 vorgesehen. Die Anschlüsse 2 dienen zur Verbindung des Kraftstoffhochdruckspeichers mit elektrisch gesteuerten Kraftstoffeinspritzventilen.The drawing shows a high-pressure fuel accumulator consisting of an elongated, forged tubular body 1, on the outer surface of which connecting pieces 2 are formed by forging and which has fastening elements 3 formed on the outer surface diametrically opposite the connecting pieces 2, in the form of fastening eyes with through holes 4 to be made by drilling. The tubular body 1 is closed on one end face 5 and is designed as an axially directed connecting piece 6 on its other end face. On the side of the fastening elements 3, the tubular high-pressure accumulator can have another connecting piece 7, into which, for example, a pressure sensor or a control valve can be screwed. The connecting pieces 2 are provided in the usual way with a screw thread 8, into which high-pressure connecting lines are tightly inserted, for example via a conical seal 9. These lines are connected to the interior 10 of the tubular high-pressure accumulator 1 via radial bores 11. The connection 6 is intended for connection to a high-pressure fuel feed pump 0 (not shown here). The connections 2 are used to connect the high-pressure fuel accumulator to electrically controlled fuel injection valves.

Claims (1)

R. 29819R.29819 20.12.95 Bö/Br20.12.95 Gust/Br ROBERT BOSCH GMBH, 70442 StuttgartROBERT BOSCH GMBH, 70442 Stuttgart AnspruchClaim Kraftstoffeinspritzsystem für Brennkraftmaschinen mit einer Kraftstoffhochdruckpumpe, die einenFuel injection system for internal combustion engines with a high-pressure fuel pump which 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 aus einem langgestrecktem rohrartigen Körper aus Stahl besteht, versehen mit Anschlüssen (2,6,7) für die Kraftstoffzufuhr und die Kraftstoffabfuhr und mit Befestigungselementen (3), dadurch gekennzeichnet, daß der rohrartige Körper durch Schmieden geformt ist, mit ebenfalls durch Schmieden angeformten Anschlußstutzen (2,6,7) und Befestigungselementen (3).High-pressure fuel reservoir (1) supplied with fuel, from which the fuel is fed to electrically controlled injection valves for injection into the combustion chambers of a self-igniting internal combustion engine, the high-pressure fuel reservoir consisting of an elongated tubular body made of steel, provided with connections (2,6,7) for the fuel supply and the fuel discharge and with fastening elements (3), characterized in that the tubular body is formed by forging, with connecting pieces (2,6,7) and fastening elements (3) also formed by forging.
DE29521402U 1995-12-23 1995-12-23 Fuel injection system Expired - Lifetime DE29521402U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29521402U DE29521402U1 (en) 1995-12-23 1995-12-23 Fuel injection system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29521402U DE29521402U1 (en) 1995-12-23 1995-12-23 Fuel injection system
DE19548611 1995-12-23

Publications (1)

Publication Number Publication Date
DE29521402U1 true DE29521402U1 (en) 1997-04-24

Family

ID=26021688

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29521402U Expired - Lifetime DE29521402U1 (en) 1995-12-23 1995-12-23 Fuel injection system

Country Status (1)

Country Link
DE (1) DE29521402U1 (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998014700A1 (en) * 1996-09-30 1998-04-09 Robert Bosch Gmbh High pressure fuel accumulator
DE19746568A1 (en) * 1997-10-22 1999-05-06 Daimler Chrysler Ag Fuel injection system for a multi-cylinder internal combustion engine with a supply line acting as a high-pressure accumulator
DE19744094A1 (en) * 1997-10-06 1999-05-27 Siemens Ag Integrated fuel-rail injection system for IC engine e.g. diesel engine
DE19945786C1 (en) * 1999-09-24 2000-11-16 Bosch Gmbh Robert High pressure fuel store for a motor common rail fuel injection system has a body containing two circular cylinder chambers with a connection between them for increased strength under high pressures
DE19923951A1 (en) * 1999-05-25 2000-11-30 Delphi Tech Inc Distributor rail for fuel injection systems has connection with insert for fastening to fuel pipe
DE19948339C1 (en) * 1999-10-07 2000-12-14 Bosch Gmbh Robert High pressure fuel reservoir for common-rail fuel injection system for i.c. engine provided by hollow tubular body with its interiror space provided by coupled or overlapping cylindrical recesses
WO2001009507A1 (en) * 1999-08-03 2001-02-08 Robert Bosch Gmbh High pressure reservoir for fuel
WO2001012980A1 (en) * 1999-08-11 2001-02-22 Robert Bosch Gmbh High-pressure fuel accumulator for fuel injection systems in internal combustion engines
DE19945316A1 (en) * 1999-09-22 2001-04-05 Bosch Gmbh Robert High pressure fuel accumulator
DE19946611A1 (en) * 1999-09-29 2001-04-12 Bosch Gmbh Robert High pressure fuel accumulator
DE19948338A1 (en) * 1999-10-07 2001-04-12 Bosch Gmbh Robert Process for processing a high-pressure fuel accumulator, high-pressure fuel accumulator and connecting piece for using the method
DE19948341A1 (en) * 1999-10-07 2001-04-19 Bosch Gmbh Robert High pressure fuel accumulator
DE19949963A1 (en) * 1999-10-16 2001-04-26 Bosch Gmbh Robert Production of fuel high pressure storage for common-rail fuel injection system of IC engine, which is equipped with hollow basic body having several connection openings
DE19949962A1 (en) * 1999-10-16 2001-04-26 Bosch Gmbh Robert Fuel high pressure storage for a common-rail fuel injection system of IC engine with hollow basic body which is equipped with several connection openings
DE10256703B3 (en) * 2002-12-04 2004-04-01 Siemens Ag Production of a fuel high pressure storage unit for a fuel injection system of an engine comprises extruding a hollow profile of a tubular base body with connecting strips and/or fixing strips
DE10247524A1 (en) * 2002-10-11 2004-04-22 Siemens Ag Automotive common rail fuel distribution unit is fabricated with transverse outlets in metal casting
DE10007131B4 (en) * 1999-02-17 2005-07-14 Usui Kokusai Sangyo Kaisha Ltd., Nagasawa Method for producing a common pressure line (common rail)
EP1674172A1 (en) * 2004-12-24 2006-06-28 Denso Corporation Method for manufacturing high-pressure piping part and structure thereof
DE10249219B4 (en) * 2002-10-22 2007-04-05 Siemens Ag High-pressure fuel storage
DE202014104466U1 (en) 2014-09-19 2014-09-25 Benteler Automobiltechnik Gmbh Fuel distributor
DE202015105989U1 (en) 2015-11-09 2015-12-02 Benteler Automobiltechnik Gmbh Fuel distributor
DE202015106569U1 (en) 2015-12-02 2016-01-07 Benteler Automobiltechnik Gmbh Fuel distributor
DE102015120962A1 (en) 2015-12-02 2017-06-08 Benteler Automobiltechnik Gmbh Fuel distributor and method for producing a fuel distributor
DE102016115550A1 (en) 2016-08-22 2018-02-22 Benteler Automobiltechnik Gmbh Process for producing a fuel distributor
DE102017122301B3 (en) 2017-09-26 2018-10-31 Benteler Automobiltechnik Gmbh Fuel distributor
DE102018110342A1 (en) * 2018-04-30 2019-10-31 Benteler Automobiltechnik Gmbh Fuel distributor
DE102018112951A1 (en) 2018-05-30 2019-12-05 Benteler Automobiltechnik Gmbh Method for producing a fuel distributor and fuel distributor
GB2583345A (en) * 2019-04-24 2020-10-28 Delphi Tech Ip Ltd Common rail assembly
EP3832123A1 (en) 2019-12-04 2021-06-09 Benteler Automobiltechnik GmbH Fuel rail
DE102020116532B3 (en) 2020-06-23 2021-12-23 Benteler Automobiltechnik Gmbh Fuel rail

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998014700A1 (en) * 1996-09-30 1998-04-09 Robert Bosch Gmbh High pressure fuel accumulator
DE19744094A1 (en) * 1997-10-06 1999-05-27 Siemens Ag Integrated fuel-rail injection system for IC engine e.g. diesel engine
DE19744094C2 (en) * 1997-10-06 1999-11-18 Siemens Ag Injection system for an internal combustion engine
DE19746568A1 (en) * 1997-10-22 1999-05-06 Daimler Chrysler Ag Fuel injection system for a multi-cylinder internal combustion engine with a supply line acting as a high-pressure accumulator
US6009855A (en) * 1997-10-22 2000-01-04 Daimlerchrysler Ag Fuel injection system for a multicylinder internal combustion engine with a fuel supply line serving as high pressure storage device
DE19746568C2 (en) * 1997-10-22 2000-11-02 Daimler Chrysler Ag Fuel injection system for a multi-cylinder internal combustion engine
DE10007131B4 (en) * 1999-02-17 2005-07-14 Usui Kokusai Sangyo Kaisha Ltd., Nagasawa Method for producing a common pressure line (common rail)
DE19923951A1 (en) * 1999-05-25 2000-11-30 Delphi Tech Inc Distributor rail for fuel injection systems has connection with insert for fastening to fuel pipe
WO2001009507A1 (en) * 1999-08-03 2001-02-08 Robert Bosch Gmbh High pressure reservoir for fuel
CZ296999B6 (en) * 1999-08-11 2006-08-16 Robert Bosch Gmbh High-pressure fuel accumulator for fuel injection systems in internal combustion engines
WO2001012980A1 (en) * 1999-08-11 2001-02-22 Robert Bosch Gmbh High-pressure fuel accumulator for fuel injection systems in internal combustion engines
DE19945316A1 (en) * 1999-09-22 2001-04-05 Bosch Gmbh Robert High pressure fuel accumulator
WO2001023750A1 (en) * 1999-09-24 2001-04-05 Robert Bosch Gmbh High pressure fuel accumulator
DE19945786C1 (en) * 1999-09-24 2000-11-16 Bosch Gmbh Robert High pressure fuel store for a motor common rail fuel injection system has a body containing two circular cylinder chambers with a connection between them for increased strength under high pressures
DE19946611A1 (en) * 1999-09-29 2001-04-12 Bosch Gmbh Robert High pressure fuel accumulator
DE19948339C1 (en) * 1999-10-07 2000-12-14 Bosch Gmbh Robert High pressure fuel reservoir for common-rail fuel injection system for i.c. engine provided by hollow tubular body with its interiror space provided by coupled or overlapping cylindrical recesses
DE19948338A1 (en) * 1999-10-07 2001-04-12 Bosch Gmbh Robert Process for processing a high-pressure fuel accumulator, high-pressure fuel accumulator and connecting piece for using the method
DE19948341A1 (en) * 1999-10-07 2001-04-19 Bosch Gmbh Robert High pressure fuel accumulator
WO2001025615A1 (en) 1999-10-07 2001-04-12 Robert Bosch Gmbh High pressure fuel accumulator
DE19949963A1 (en) * 1999-10-16 2001-04-26 Bosch Gmbh Robert Production of fuel high pressure storage for common-rail fuel injection system of IC engine, which is equipped with hollow basic body having several connection openings
DE19949962A1 (en) * 1999-10-16 2001-04-26 Bosch Gmbh Robert Fuel high pressure storage for a common-rail fuel injection system of IC engine with hollow basic body which is equipped with several connection openings
DE10247524B4 (en) * 2002-10-11 2004-08-12 Siemens Ag Fuel distributor
DE10247524A1 (en) * 2002-10-11 2004-04-22 Siemens Ag Automotive common rail fuel distribution unit is fabricated with transverse outlets in metal casting
DE10249219B4 (en) * 2002-10-22 2007-04-05 Siemens Ag High-pressure fuel storage
DE10256703B3 (en) * 2002-12-04 2004-04-01 Siemens Ag Production of a fuel high pressure storage unit for a fuel injection system of an engine comprises extruding a hollow profile of a tubular base body with connecting strips and/or fixing strips
EP1674172A1 (en) * 2004-12-24 2006-06-28 Denso Corporation Method for manufacturing high-pressure piping part and structure thereof
US7219524B2 (en) 2004-12-24 2007-05-22 Denso Corporation Method for manufacturing high-pressure piping part and structure thereof
EP2998566A1 (en) 2014-09-19 2016-03-23 Benteler Automobiltechnik GmbH Fuel distributor
DE202014104466U1 (en) 2014-09-19 2014-09-25 Benteler Automobiltechnik Gmbh Fuel distributor
EP2998566B1 (en) 2014-09-19 2019-10-23 Benteler Automobiltechnik GmbH Fuel distributor
EP3165760A1 (en) 2015-11-09 2017-05-10 Benteler Automobiltechnik GmbH Fuel distributor
DE202015105989U1 (en) 2015-11-09 2015-12-02 Benteler Automobiltechnik Gmbh Fuel distributor
DE102015120962A1 (en) 2015-12-02 2017-06-08 Benteler Automobiltechnik Gmbh Fuel distributor and method for producing a fuel distributor
US10138854B2 (en) 2015-12-02 2018-11-27 Benteler Automobiltechnik Gmbh Fuel rail and method of making a fuel rail
DE202015106569U1 (en) 2015-12-02 2016-01-07 Benteler Automobiltechnik Gmbh Fuel distributor
DE102015120962B4 (en) * 2015-12-02 2020-09-24 Benteler Automobiltechnik Gmbh Fuel rail and method of making a fuel rail
DE102016115550A1 (en) 2016-08-22 2018-02-22 Benteler Automobiltechnik Gmbh Process for producing a fuel distributor
DE102016115550B4 (en) 2016-08-22 2018-05-30 Benteler Automobiltechnik Gmbh Process for producing a fuel distributor
DE102017122301B3 (en) 2017-09-26 2018-10-31 Benteler Automobiltechnik Gmbh Fuel distributor
US10794345B2 (en) 2017-09-26 2020-10-06 Benteler Automobiltechnik Gmbh Fuel distributor
DE102018110342B4 (en) 2018-04-30 2022-09-01 Benteler Automobiltechnik Gmbh Method of manufacturing a fuel rail
DE102018110342A1 (en) * 2018-04-30 2019-10-31 Benteler Automobiltechnik Gmbh Fuel distributor
DE102018112951A1 (en) 2018-05-30 2019-12-05 Benteler Automobiltechnik Gmbh Method for producing a fuel distributor and fuel distributor
DE102018112951B4 (en) 2018-05-30 2022-10-27 Benteler Automobiltechnik Gmbh Method of making a fuel rail and fuel rail
GB2583345B (en) * 2019-04-24 2021-06-09 Delphi Tech Ip Ltd Common rail assembly
GB2583345A (en) * 2019-04-24 2020-10-28 Delphi Tech Ip Ltd Common rail assembly
EP3832123A1 (en) 2019-12-04 2021-06-09 Benteler Automobiltechnik GmbH Fuel rail
DE102019133050A1 (en) * 2019-12-04 2021-06-10 Benteler Automobiltechnik Gmbh Fuel rail
DE102020116532B3 (en) 2020-06-23 2021-12-23 Benteler Automobiltechnik Gmbh Fuel rail

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