EP1269008A1 - Soupape d'injection a etranglement de derivation - Google Patents

Soupape d'injection a etranglement de derivation

Info

Publication number
EP1269008A1
EP1269008A1 EP01919177A EP01919177A EP1269008A1 EP 1269008 A1 EP1269008 A1 EP 1269008A1 EP 01919177 A EP01919177 A EP 01919177A EP 01919177 A EP01919177 A EP 01919177A EP 1269008 A1 EP1269008 A1 EP 1269008A1
Authority
EP
European Patent Office
Prior art keywords
chamber
valve
nozzle
control
injection valve
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
EP01919177A
Other languages
German (de)
English (en)
Other versions
EP1269008B1 (fr
Inventor
Dirk Baranowski
Wendelin KLÜGL
Gerd Schmutzler
Joachim Wagner
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 EP1269008A1 publication Critical patent/EP1269008A1/fr
Application granted granted Critical
Publication of EP1269008B1 publication Critical patent/EP1269008B1/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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements

Definitions

  • the invention relates to an injection valve according to the preamble of claim 1.
  • the fuel is injected into the combustion chamber of an internal combustion engine at a pressure of up to 2,000 bar.
  • the high fuel pressure requires precise control of the injection time and the injection quantity. Furthermore, it is for
  • a fuel injection valve for a common rail injection system which has a control chamber which passes from a fuel line
  • the control chamber is connected via a discharge throttle to a discharge line, which can be connected to a fuel reservoir via an electromagnetic valve, and a bypass throttle is provided, which creates a connection between the fuel line and the discharge line
  • the control chamber is delimited by a nozzle needle which is arranged in an axially movable manner in a nozzle body, the nozzle needle is guided through a nozzle chamber which is connected to the fuel line, and the nozzle needle has pressure surfaces which are related to the fuel pressure in the nozzle chamber rules, are acted upon and the nozzles Apply force towards the control chamber.
  • a nozzle spring is provided in the control chamber, which holds the nozzle needle in Biased towards their sealing seat.
  • the pressure in the pressure chamber is controlled depending on the opening position of the electromagnetic valve. If the valve is open, fuel flows out of the pressure chamber via the outlet throttle and at the same time less fuel flows in via the inlet throttle, so that the pressure in the control chamber drops. As a result, the nozzle needle is moved in the direction of the nozzle chamber, the nozzle needle lifting off with its tip from a sealing seat and releasing a connection between the fuel line and injection holes.
  • the injection valve described has the disadvantage that the nozzle spring is located in the control chamber and a relatively large control chamber is therefore necessary, which represents a large damage volume. Furthermore, the installation of the nozzle spring m of the control chamber poses the risk that dirt particles get into the control chamber during installation and that the outlet throttle becomes stuck and impair the functionality of the injection valve. Cavitation bubbles that arise in the inlet throttle can damage the nozzle spring.
  • the object of the invention is to provide an injection valve with a simpler construction in which the functioning of the hydraulic control is not impaired.
  • Part of the return line is preferably designed as a valve chamber, in which a bypass throttle flows. In this way, a compact structure of the injection valve is achieved.
  • a chamber through which a coupling rod is guided, which connects a control piston to the nozzle needle, is connected directly to the fuel line, which carries fuel under high pressure.
  • no leakage line is connected to the chamber. In this way, leakage through the chamber is largely avoided.
  • control chamber is delimited by a control piston which is operatively connected to the nozzle needle via a rod.
  • the rod is guided through a chamber in which a needle spring is arranged for pretensioning the nozzle needle.
  • the control chamber is free of moving parts, so that contamination of the control chamber by components introduced is excluded.
  • the control chamber can be designed particularly blind, as a result of which the dead volume when the nozzle needle is actuated is reduced.
  • the cross section of the control piston is preferably the same as the cross section of the guided region of the nozzle needle. In this way, only one guide has to be manufactured, which makes the injection valve inexpensive.
  • a closing member is introduced into the valve chamber, which is biased against a sealing seat by a spring which is also arranged in the valve chamber.
  • the figure shows the schematic structure of a Sp ⁇ tzvalves for a common rail injection system.
  • the injection valve has a housing 29 which is connected to a fuel accumulator 10 via a feed line 30.
  • the fuel accumulator 10 is supplied with fuel, for example, by a controllable high-pressure pump.
  • the feed line 30 is led to a fuel line 11 in the housing 29.
  • the fuel line 11 is connected directly to a nozzle chamber 20 m, which opens into an injection chamber 31, from which injection holes 22 extend.
  • the nozzle chamber 20 and the injection chamber 31 are introduced into a nozzle body 39, which is located at the lower tip of the injection valve.
  • a second sealing seat 21 is arranged in the injection chamber 31, with which a nozzle needle 32 with a needle tip 19 rests in the closed state.
  • the needle tip 19 is connected to a guide section 18 n, which is designed in the form of a cylinder.
  • the guide section 18 is guided in a guide bore 33 of the injection valve so that it can move slowly.
  • the guide bore 33 is introduced into the housing 29 in the form of a cylindrical recess.
  • the guide bore 33 merges into the nozzle chamber 20 on one side and into a through bore 34 on the other side, which is also cylindrical in shape and preferably has a smaller cross section than the guide bore 33.
  • Grooves 40 are preferably provided which connect the nozzle chamber 20 to the chamber 25.
  • the through hole 34 in turn opens into a chamber 25, which is also cylindrical in shape and has a larger cross section than the guide hole 33.
  • a coupling piece 35 is arranged, which rests on the guide section 18.
  • a coupling rod 17 is arranged in the chamber 25 and rests with a plate 23 on the coupling piece 35.
  • the plate 23 is circular and has a larger cross section than the cylindrical coupling rod 17.
  • the plate 23 has the function of a support collar for the needle spring 24.
  • the guide 18 of the nozzle needle can also be dispensed with entirely, so that a circular cavity between the nozzle needle 32 and the housing 29 connects the nozzle chamber 20 to the chamber 25.
  • the chamber 25 can also be connected directly to the high-pressure line 11 via a connecting line 26.
  • the chamber 25 opens into a second guide bore 36 on the side opposite the through bore 34.
  • the second guide bore 36 also has a cylindrical shape.
  • em zylmderforanger control piston 16 is arranged movably in the longitudinal direction, which is connected to the coupling rod 17.
  • a control chamber 15 is formed in the second guide bore 36 between the upper end of the control piston 16 and the housing 29.
  • a needle spring 24 Arranged in the chamber 25 is a needle spring 24 which comprises the coupling rod 17 and is arranged between the plate 23 and a step 37, the step 37 being arranged in the transition region between the chamber 25 and the second guide bore 36.
  • the second guide bore 36 has a smaller diameter than the chamber 25.
  • the mode of operation of the needle spring 24 is that the needle spring 24 prestresses the nozzle needle 32 with the needle tip 19 onto the second sealing seat 21.
  • the chamber 25 is preferably connected to the fuel line 11 via a connection line 26.
  • the control chamber 15 is connected to the fuel line 11 via an inlet throttle 13 and to a valve chamber 9 via an outlet throttle 14.
  • the cross section of the inlet throttle 13 is smaller than the cross section of the outlet throttle 14.
  • a closing element 6 and a valve spring 8 are arranged in the valve chamber 9, the closing element 6 being biased in the direction of a sealing seat 7 by the valve spring 8.
  • the closing member 6 and the sealing seat 7 represent a servo valve 5.
  • the valve chamber 9 stands over a drain hole 38 with a return 40 connection. Furthermore, a bypass throttle 12 m in the form of a bore is provided, which connects the fuel line 11 to the valve chamber 9.
  • the lines between the control chamber 15 and the servo valve 6 represent the return line 27.
  • a valve piston 4, which is connected to an actuator 3, is guided in the drain hole 38. The valve piston 4 rests with a pressure surface on an assigned pressure surface of the closing element 6.
  • the actuator 3 is connected to a control device 1 via electrical connections 2.
  • the injection valve works as follows: There is fuel at high pressure in the fuel accumulator 10, so that with a closed servo valve 5, in which the closing element 6 rests on the sealing seat 7, in the valve chamber 9, m in the control chamber 15, in the nozzle chamber 20 , High pressure fuel is present in the injection chamber 31 and in the chamber 25. Since the area with which the control piston 16 adjoins the control chamber 15 is larger than the area which is acted upon by the nozzle needle 32 with pressure in the direction of the control chamber 15 and additionally the pretensioning force of the needle spring 24, the nozzle needle 32 on the sealing seat 21 prints, the nozzle needle 22 is seated on the sealing seat 21 and separates the injection chamber 31 from the injection holes 22. Thus, no injection takes place.
  • control unit 1 controls the piezoelectric actuator 3 m in such a way that the actuator 3 deflects and lifts the closing member 6 from the sealing seat 7 via the valve piston 4.
  • more fuel flows out of the control chamber 15 via the outlet throttle 14 than flows in via the inlet throttle 13.
  • the fuel flows via the outlet throttle 14 into the valve chamber 9 and further via the drain hole 38 into the return line 27 to a fuel reservoir.
  • the pressure in the control chamber 15 drops.
  • the pressure in the nozzle chamber 20 remains at the level of the fuel line 11.
  • the control device 1 controls the piezoelectric actuator 3 in such a way that the actuator 3 shortens.
  • the closing member 6 is again pressed by the valve spring 8 on the sealing seat 7, so that the connection to the return line 27 is interrupted.
  • fuel continues to flow from the fuel line 11 into the valve chamber 9 and from the valve chamber 9 via the outlet throttle 14 into the control chamber 15.
  • fuel flows from the fuel line 11 into the control chamber 15 via the inlet throttle 13 high fuel pressure m of the fuel chamber 15 is reached, so that the nozzle needle 32 is again pressed onto the second sealing seat 21 by the pressure prevailing in the control chamber 15.
  • the connection between the injection space 31 and the injection holes 22 is broken.
  • the chamber 25 By connecting the chamber 25 to the pressure of the fuel line 11 via the connecting line 26 or the grooves 40, a hydraulic connection of the chamber 25 is achieved. This enables a particularly low-friction movement of the nozzle needle 32. In addition, leakage occurs via the chamber 25 m in the direction of the control chamber 15 only when the servo valve 5 is open and there is a low pressure m in the control chamber 15. Furthermore, the connection of the chamber 25 to the fuel line 11 has the advantage that the guide fit between the guide section 18 and the guide bore 33 need not be as precise, since no seal between the nozzle chamber 20 and the chamber 25 is necessary. This enables cost savings in the manufacture of the injection valve.
  • the guide fit between the control piston 16 and the second guide bore must also be made very precisely in order to ensure a seal between the control chamber 15 and the chamber 25.
  • the chamber 25, which contains the needle spring, is connected to the high pressure in the nozzle chamber along the guidance of the nozzle needle.
  • the only hydraulically effective piston surface that controls the movement of the nozzle needle is the cross section of the guide of the control piston.
  • the closing process is essentially initiated by the needle spring.
  • the Baypass throttle is arranged so that the pressure drop in the control chamber is not too great due to the downward closing movement of the needle and control piston.
  • the bypass throttle is of no importance for opening the nozzle needle if it is made small enough so as not to impair the pressure reduction via the servo valve 5.
  • the resulting chamber can be used as a drain line to connect the high pressure line to the outlet of the drain throttle via the bypass throttle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (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 une soupape d'injection, comprenant une chambre de commande (15) pourvue d'un piston de commande (16), qui coopère avec une aiguille d'injecteur (35). Ladite chambre de commande (15) est reliée, par l'intermédiaire d'un étranglement d'alimentation (13), à du carburant sous haute pression et, au moyen d'un étranglement d'évacuation (14), à une chambre de soupape (9). Une servosoupape (5), située dans la chambre de soupape (9), établit une connexion entre la chambre de soupape (9) et un reflux (40), en fonction de sa position. La soupape d'injection selon cette invention comprend également un étranglement de dérivation (12), qui est monté entre la conduite d'alimentation en carburant et la chambre de soupape.
EP01919177A 2000-03-28 2001-03-08 Soupape d'injection a etranglement de derivation Expired - Lifetime EP1269008B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10015268 2000-03-28
DE10015268A DE10015268A1 (de) 2000-03-28 2000-03-28 Einspritzventil mit Bypaßdrossel
PCT/DE2001/000893 WO2001073287A1 (fr) 2000-03-28 2001-03-08 Soupape d'injection a etranglement de derivation

Publications (2)

Publication Number Publication Date
EP1269008A1 true EP1269008A1 (fr) 2003-01-02
EP1269008B1 EP1269008B1 (fr) 2005-07-20

Family

ID=7636612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01919177A Expired - Lifetime EP1269008B1 (fr) 2000-03-28 2001-03-08 Soupape d'injection a etranglement de derivation

Country Status (4)

Country Link
US (2) US6789743B2 (fr)
EP (1) EP1269008B1 (fr)
DE (2) DE10015268A1 (fr)
WO (1) WO2001073287A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015268A1 (de) 2000-03-28 2001-10-04 Siemens Ag Einspritzventil mit Bypaßdrossel
DE10024702A1 (de) * 2000-05-18 2001-11-22 Bosch Gmbh Robert Einspritzanordnung für ein Kraftstoff-Speichereinspritzsystem einer Verbrennungsmaschine
DE10024703A1 (de) * 2000-05-18 2001-11-22 Bosch Gmbh Robert Einspritzanordnung für ein Kraftstoff-Speichereinspritzsystem einer Verbrennungsmaschine
DE10033428C2 (de) * 2000-07-10 2002-07-11 Bosch Gmbh Robert Druckgesteuerter Injektor zum Einspritzen von Kraftstoff
DE10131953A1 (de) * 2001-07-02 2003-01-23 Siemens Ag Steuermodul für einen Injektor eines Speichereinspritzsystems
DE10140799A1 (de) * 2001-08-20 2003-03-06 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10160263A1 (de) * 2001-12-07 2003-06-18 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10315016A1 (de) * 2003-04-02 2004-10-28 Robert Bosch Gmbh Kraftstoffinjektor mit leckagefreiem Servoventil
DE102004010760A1 (de) * 2004-03-05 2005-09-22 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen mit Nadelhubdämpfung
DE102005009147A1 (de) * 2005-03-01 2006-09-07 Robert Bosch Gmbh Kraftstoffinjektor für Verbrennungskraftmaschinen
DE102005010612B3 (de) * 2005-03-08 2006-08-31 Siemens Ag Einspritzventil mit einstellbarem Druck im Ablaufraum
US7617993B2 (en) * 2007-11-29 2009-11-17 Toyota Motor Corporation Devices and methods for atomizing fluids
DE102008001330A1 (de) * 2008-04-23 2009-10-29 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
ATE546636T1 (de) * 2009-08-26 2012-03-15 Delphi Tech Holding Sarl Kraftstoffeinspritzdüse
DE102010039051A1 (de) * 2010-08-09 2012-02-09 Robert Bosch Gmbh Einspritzvorrichtung
CH704454A1 (de) * 2011-02-08 2012-08-15 Liebherr Machines Bulle Sa Einspritzvorrichtung für ein Fluid.
JP6686931B2 (ja) * 2017-02-22 2020-04-22 株式会社デンソー 燃料噴射装置
JP6926718B2 (ja) * 2017-06-23 2021-08-25 株式会社Ｓｏｋｅｎ 燃料噴射装置
JP6988196B2 (ja) * 2017-06-27 2022-01-05 株式会社Soken 燃料噴射装置
US11698043B1 (en) 2022-03-09 2023-07-11 Caterpillar Inc. Fuel injector for fuel system having damping adjustment valve

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2068857A5 (fr) * 1969-10-24 1971-09-03 Sofredi
US4776518A (en) * 1986-04-11 1988-10-11 Nippondenso Co., Ltd. Fuel injection valve used in fuel injection apparatus for internal combustion engine
EP0824190B1 (fr) * 1992-12-23 2002-03-06 Ganser-Hydromag Ag Soupape d'injection de combustible
DE4336108C1 (de) * 1993-10-22 1994-12-01 Daimler Benz Ag Magnetvenitl an einer für Brennkraftmaschinen vorgesehenen Kraftstoffeinspritzdüse
FI101738B1 (fi) * 1996-01-30 1998-08-14 Waertsilae Nsd Oy Ab Ruiskutusventtiilijärjestely
JPH09209867A (ja) * 1996-02-07 1997-08-12 Mitsubishi Motors Corp 燃料噴射装置
GB9606803D0 (en) * 1996-03-30 1996-06-05 Lucas Ind Plc Injection nozzle
DE19624001A1 (de) * 1996-06-15 1997-12-18 Bosch Gmbh Robert Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen
DE19738397A1 (de) * 1997-09-03 1999-03-18 Bosch Gmbh Robert Kraftstoffeinspritzanlage für eine Brennkraftmaschine
DE19741850A1 (de) * 1997-09-23 1999-03-25 Bosch Gmbh Robert Eispritzventil
DE19742320A1 (de) * 1997-09-25 1999-04-01 Bosch Gmbh Robert Kraftstoffeinspritzventil
GB9725804D0 (en) * 1997-12-06 1998-02-04 Lucas Ind Plc Fuel injector
DE19816316A1 (de) * 1998-04-11 1999-10-14 Bosch Gmbh Robert Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen
US5890653A (en) * 1998-04-23 1999-04-06 Stanadyne Automotive Corp. Sensing and control methods and apparatus for common rail injectors
DE19826791A1 (de) * 1998-06-16 1999-12-23 Bosch Gmbh Robert Ventilsteuereinheit für ein Kraftstoffeinspritzventil
EP0976924B1 (fr) * 1998-07-31 2003-09-17 Siemens Aktiengesellschaft Injecteur avec une servovalve
DE19837890B4 (de) * 1998-08-20 2004-06-03 Siemens Ag Kraftstoffeinspritzventil für Brennkraftmaschinen
DE19949527A1 (de) * 1999-10-14 2001-04-19 Bosch Gmbh Robert Injektor für ein Kraftstoffeinspritzsystem für Brennkraftmaschinen mit in den Ventilsteuerraum ragender Düsennadel
DE10015268A1 (de) 2000-03-28 2001-10-04 Siemens Ag Einspritzventil mit Bypaßdrossel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0173287A1 *

Also Published As

Publication number Publication date
US6789743B2 (en) 2004-09-14
EP1269008B1 (fr) 2005-07-20
DE10015268A1 (de) 2001-10-04
DE50106789D1 (de) 2005-08-25
WO2001073287A1 (fr) 2001-10-04
US20030025005A1 (en) 2003-02-06
US20040155123A1 (en) 2004-08-12
US7575180B2 (en) 2009-08-18

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