EP1262657A2 - Système d'injection de carburant, en particulier pour moteurs Diesel - Google Patents

Système d'injection de carburant, en particulier pour moteurs Diesel Download PDF

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Publication number
EP1262657A2
EP1262657A2 EP02008680A EP02008680A EP1262657A2 EP 1262657 A2 EP1262657 A2 EP 1262657A2 EP 02008680 A EP02008680 A EP 02008680A EP 02008680 A EP02008680 A EP 02008680A EP 1262657 A2 EP1262657 A2 EP 1262657A2
Authority
EP
European Patent Office
Prior art keywords
valve
pressure
fuel
pressure relief
injection system
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Withdrawn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
EP02008680A
Other languages
German (de)
English (en)
Other versions
EP1262657A3 (fr
Inventor
Kurt Frank
Friedrich Boecking
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 EP1262657A2 publication Critical patent/EP1262657A2/fr
Publication of EP1262657A3 publication Critical patent/EP1262657A3/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Withdrawn legal-status Critical Current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
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way valves
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/005—Pressure relief valves
    • 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
    • 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
    • F02M2200/18—Fuel-injection apparatus having means for maintaining safety not otherwise provided for
    • 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
    • F02M63/0275—Arrangement of common rails
    • F02M63/028—Returnless common rail system

Definitions

  • the invention relates to a fuel injection system according to the Preamble of claim 1.
  • Fuel storage injection systems are in the Principle known. A distinction is made here between common rail systems quantity-controlled high pressure pump (so-called CP3 systems), in which a Pressure reduction in the fuel pressure accumulator (rail) only via injection, Tax amount and leakage is possible, and common rail systems, at which a high pressure side pressure relief valve to reduce the System pressure is used. Subject of the present invention is the latter type of system, i.e. one with a pressure relief valve Lower system pressure.
  • the invention has for its object under reasonable technical and cost-effective measures for elimination, at least for the noticeable reduction in sealing, component and To meet installation space problems.
  • valve seat and valve body and thus the essential functional elements of the pressure relief valve, in the fuel accumulator will shift the sealing area of the Pressure relief valve from the (previous) high pressure range in the Low pressure range allows, which is a significant relief in the Solution of the sealing task means.
  • results from the above Measure according to the invention advantageously a corresponding reduction the space required and the possibility of the housing of the Pressure relief valve and its attachment to the fuel accumulator less complex than before.
  • a total of 10 denotes a fuel tank with an electric one Fuel pump 11, prefilter 12 and filter 13.
  • a high pressure pump is included 14, and a fuel accumulator (so-called common rail) is a total of 15 quantified.
  • the fuel is through the Fuel pump 11 via a low pressure line 16 to the high pressure pump 14 promoted, which brings the fuel to high pressure and via a High-pressure line 17 feeds the fuel accumulator 15.
  • the fuel storage 15 supplies - via a high pressure line 18 or 19 or 20 or 21 - four Injectors 22-25 of a four-cylinder internal combustion engine (not shown) with the fuel it needs.
  • Fuel that is not required is fed via a return line 26 or 27 or 28 or 29 in a return manifold 30 and from there again back into the fuel tank 10.
  • a certain (minor) amount of leakage passes from the high pressure pump 14 via a return line 31 and Return manifold 30 also back into the fuel tank 10.
  • the total amount of fuel required by injectors 22-25 is six Sensors are provided, which are numbered 32-37. So the sensor 32 is the Assigned crankshaft, controls the respective engine speed. sensor 33, which is assigned to the camshaft, serves to control the respective Phase of the internal combustion engine. Sensor 34 is assigned to the accelerator pedal, therefore takes into account the respective mileage desired by the driver. sensor 35 takes into account the respective boost pressure of the internal combustion engine, sensor 36 the air temperature and sensor 37 the coolant temperature. Corresponding signals from sensors 32-37 arrive via signal lines 38-43 in a control unit designated 44, which processes the signals.
  • Another sensor 45 determines the respective pressure in the fuel accumulator 15 and sends - via a signal line 46 - appropriate signals to the Control unit 44. Taking into account the incoming signals controls the control unit 44 - via control lines 47 and 48 - the High pressure pump 14 as well as the fuel pump 11.
  • Fuel reservoir 15 is a - only schematically indicated in Fig. 1 - Pressure relief valve 49 is arranged, which has the task of preventing that the pressure in the fuel accumulator 15 is above a specified maximum value goes. For this purpose - if necessary - in the open position of the Pressure relief valve 49 derived from the fuel accumulator 15 Amount of fuel reaches - via a return line 50, which in the return manifold 30 flows into the fuel tank 10.
  • FIG. 2 A possible embodiment of a pressure relief valve is now out Fig. 2 can be seen and there designated a total of 49a. It consists of a valve housing 51, a valve spring 52, a plate-like spring support 53, a spherical valve body 54, a conical valve seat 55, one tapering in the direction of the valve seat 55 and in these opening inlet bore 56 and one to the valve housing 51st Return connection 57 integrally formed on the rear.
  • a special feature is that the pressure relief valve 49a partially, in terms of its essential parts, valve seat 55 and Inlet bore 56, in the total (only partially shown in Fig. 2) with 15a numbered fuel accumulator is integrated.
  • the fuel accumulator has - In the usual way - a cylindrical interior 58, of which in the right Angle fuel channels 59, 60 go out, which in line connections 61 or 62 flow out.
  • To the line connections 61, 62 (as well as to corresponding further line connections which are not shown in FIG. 2) can (not shown) pressure lines are connected - such.
  • the fuel storage 49a - stepped on its valve-side end face 63 and with respect to this - has a connecting piece 64 which is concentric with the cylindrical Interior 58 of the fuel accumulator 15a is arranged, the Interior 58 extends into the connecting piece 64. At its end the cylindrical interior 58 goes in steps into the inlet bore 56 of the Pressure relief valve 49a over.
  • the connecting piece 64 is used for sealing fastening of the valve housing 51, which for this purpose with a part (a) of its longitudinal extent, the connecting piece 64 reaches over and encloses. The one that does not cross the connecting piece 64 (Remaining) section of the valve housing 51 remains for receiving the Valve spring 52 and the plate-like spring support 53.
  • the valve spring 52 is designed as a compression spring, is on the front with the Spring support 53 in operative connection and is supported on the back on a floor 65 of the valve housing 51.
  • the valve spring exercises via the spring support 53 52 a force determined by its spring constant and its preload the spherical valve body 54 in the closing direction (arrow 66) of the Pressure relief valve 49a.
  • the one exerted by the valve spring 52 Closing force counteracts the valve body 54 by the pressure certain opening force within the fuel accumulator 15 (so-called rail pressure) (Arrow direction 67). Outweighs the opening force caused by the rail pressure the closing force of the valve spring 52, the valve body 54 moves in Arrow direction 67, and the pressure relief valve 49a opens. Then flows a certain (comp..
  • Valve spring 52 can open the opening pressure of the Set pressure relief valve 49a or - if necessary - adjust.
  • the seal of the pressure relief valve housing 51 against the Fuel storage 15a takes place at 69, the special feature being that it is a low pressure seal.
  • This essential Advantage (compared to the high pressure seal for pressure relief valves according to the prior art) is shown by and described above (Partial) integration of the pressure relief valve 49a in the Allows fuel storage 15a.
  • the sealing measures of the As far as low-pressure sealing is concerned here for example - as shown in Fig. 2 (see reference numeral 69) - simple Find O-ring seals.
  • FIG. 3 The basic principle of (partial) integration of the pressure relief valve in the fuel accumulator and the advantages achieved thereby, in particular with regard to the displacement of the seal from the high pressure area to the low pressure area of the valve, are also realized in the embodiment according to FIG. 3. However, there are differences in terms of construction.
  • the pressure relief valve is generally designated 49b and the fuel accumulator overall 15b.
  • elements of the fuel accumulator 15b which correspond to those of the embodiment according to FIG. 2 are numbered with the same reference numerals as there.
  • the fuel accumulator 15b similar to the embodiment according to FIG.
  • valve seat 55 and valve body 54 are displaced further into the interior of fuel accumulator 15b.
  • the spring support 53b is fixedly connected to a rod-shaped actuating element 70, which ends in an extension 71 tapering in diameter interacting with the valve body 54.
  • the actuating element 70 is mounted so that it can slide back and forth in a guide bore 72 in the fuel accumulator 15b and its connecting piece 64.
  • Actuator 70 - no hydraulic connection to the interior of the pressure relief valve housing 51 b is a Return port 73 not on the pressure relief valve housing 51 b, but provided on the fuel accumulator 15b.
  • a return bore 74 is provided, the Outer periphery of the fuel accumulator 15b into a return port 73 opens.
  • the Pressure relief valve housing 51 b a plastically deformable bottom 65b, on which (as in the embodiment according to FIG. 2) supports the valve spring 52.
  • plastic deformation of the Housing bottom 65b in the axial direction 66 or 67 can thus Biasing the valve spring 52 and thus the opening pressure of the Adjust or adjust pressure relief valve 49b.
  • a corresponding plastic deformability for the purpose of adjusting or adjusting the Spring preload and thus the valve opening pressure can of course can also be provided in the valve housing bottom 65 according to FIG. However, this should not affect the return port 57 become.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP02008680A 2001-05-29 2002-04-18 Système d'injection de carburant, en particulier pour moteurs Diesel Withdrawn EP1262657A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125944 2001-05-29
DE10125944A DE10125944A1 (de) 2001-05-29 2001-05-29 Kraftstoffeinspritzsystem für Brennkraftmaschinen, insbesondere Dieselmotoren

Publications (2)

Publication Number Publication Date
EP1262657A2 true EP1262657A2 (fr) 2002-12-04
EP1262657A3 EP1262657A3 (fr) 2004-12-01

Family

ID=7686395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02008680A Withdrawn EP1262657A3 (fr) 2001-05-29 2002-04-18 Système d'injection de carburant, en particulier pour moteurs Diesel

Country Status (4)

Country Link
US (1) US6675774B2 (fr)
EP (1) EP1262657A3 (fr)
JP (1) JP2002364490A (fr)
DE (1) DE10125944A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2969217A1 (fr) * 2010-12-20 2012-06-22 Bosch Gmbh Robert Soupape de limitation de pression a chambre etanche d'accumulateur haute pression d'injection
FR2973092A1 (fr) * 2011-03-25 2012-09-28 Bosch Gmbh Robert Dispositif d'obturation, regulateur de pression comportant un tel dispositif, dispositif d'injection diesel comportant un tel regulateur, moteur diesel et vehicule comportant un tel moteur
AT512438A1 (de) * 2012-01-27 2013-08-15 Bosch Gmbh Robert Ventilblock für einen hochdruckspeicher eines common-rail schweröl-einspritzsystems

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10138756A1 (de) * 2001-08-07 2003-02-20 Bosch Gmbh Robert Kraftstoffhochdruckspeicher
DE10222895A1 (de) * 2002-05-23 2003-12-11 Bosch Gmbh Robert Hochdruckspeicher für Kraftstoffeinspritzsysteme mit integriertem Druckregelventil
DE602004014265D1 (de) * 2004-06-30 2008-07-17 Fiat Ricerche Einspritzsystem für Verbrennungskraftmaschine
US20060196476A1 (en) 2005-02-28 2006-09-07 Caterpillar Inc. Pressure relief valve
ATE441779T1 (de) * 2005-07-08 2009-09-15 Fiat Ricerche Verbindungssystem von einem rohrfírmigen speicher für hochdruckkraftstoff
JP4921886B2 (ja) * 2006-08-16 2012-04-25 ヤンマー株式会社 エンジンの燃料供給装置
DE102007019076A1 (de) * 2007-04-23 2008-10-30 Poppe & Potthoff Gmbh Verteilerrohr, insbesondere für ein Common Rail Einspritzsystem eines Dieselmotors
FR3009344B1 (fr) * 2013-07-31 2015-08-07 Delphi Technologies Holding Agencement integre d'une vanne haute pression et d'une rampe d'injection
JP6201504B2 (ja) * 2013-08-09 2017-09-27 株式会社デンソー 燃料噴射装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0267162B1 (fr) 1986-11-07 1993-03-10 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Electrovannes régulant la pression, notamment pour circuits à haute pression pour systèmes d'injection de machines à combustion interne
DE19822671A1 (de) 1998-05-20 1999-11-25 Bosch Gmbh Robert Druckbegrenzungsventil

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE554051A (fr) * 1956-01-31
US4205637A (en) * 1976-12-13 1980-06-03 Toyota Jidosha Kogyo Kabushiki Kaisha Electronic fuel injection system for an internal combustion engine having electromagnetic valves and a fuel damper upstream thereof
US4653528A (en) * 1986-02-18 1987-03-31 General Motors Corporation Multi-adaptive fuel pressure regulator
US4732131A (en) * 1986-08-26 1988-03-22 Brunswick Corporation Fuel line purging device
US6135092A (en) * 1997-10-29 2000-10-24 General Motors Corporation Fuel injection system
JP2000265922A (ja) * 1999-03-16 2000-09-26 Honda Motor Co Ltd 燃料噴射装置
DE10022275A1 (de) * 1999-05-07 2000-12-28 Aisan Ind Überdruckventil und Kraftstoffzufuhrsystem mit einem solchen Überdruckventil
US6148798A (en) * 1999-10-01 2000-11-21 Delphi Technologies, Inc. Coaxial flow through fuel rail with a damper for a recirculating fuel system
US6336442B1 (en) * 2000-05-05 2002-01-08 Siemens Automotive Corporation Assembly for attachment of a housing to a structural member

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0267162B1 (fr) 1986-11-07 1993-03-10 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Electrovannes régulant la pression, notamment pour circuits à haute pression pour systèmes d'injection de machines à combustion interne
DE19822671A1 (de) 1998-05-20 1999-11-25 Bosch Gmbh Robert Druckbegrenzungsventil

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2969217A1 (fr) * 2010-12-20 2012-06-22 Bosch Gmbh Robert Soupape de limitation de pression a chambre etanche d'accumulateur haute pression d'injection
FR2973092A1 (fr) * 2011-03-25 2012-09-28 Bosch Gmbh Robert Dispositif d'obturation, regulateur de pression comportant un tel dispositif, dispositif d'injection diesel comportant un tel regulateur, moteur diesel et vehicule comportant un tel moteur
AT512438A1 (de) * 2012-01-27 2013-08-15 Bosch Gmbh Robert Ventilblock für einen hochdruckspeicher eines common-rail schweröl-einspritzsystems
AT512438B1 (de) * 2012-01-27 2015-09-15 Bosch Gmbh Robert Ventilblock für einen hochdruckspeicher eines common-rail schweröl-einspritzsystems

Also Published As

Publication number Publication date
US6675774B2 (en) 2004-01-13
DE10125944A1 (de) 2002-12-05
EP1262657A3 (fr) 2004-12-01
US20020179056A1 (en) 2002-12-05
JP2002364490A (ja) 2002-12-18

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