EP0840009B1 - Hochdruckpumpe - Google Patents

Hochdruckpumpe Download PDF

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Publication number
EP0840009B1
EP0840009B1 EP97110986A EP97110986A EP0840009B1 EP 0840009 B1 EP0840009 B1 EP 0840009B1 EP 97110986 A EP97110986 A EP 97110986A EP 97110986 A EP97110986 A EP 97110986A EP 0840009 B1 EP0840009 B1 EP 0840009B1
Authority
EP
European Patent Office
Prior art keywords
pressure
valve
pump
low
pressure pump
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
EP97110986A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0840009A2 (de
EP0840009A3 (de
Inventor
Manfred Kraemer
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 EP0840009A2 publication Critical patent/EP0840009A2/de
Publication of EP0840009A3 publication Critical patent/EP0840009A3/de
Application granted granted Critical
Publication of EP0840009B1 publication Critical patent/EP0840009B1/de
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
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/464—Inlet valves of the check valve type
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/06—Pumps peculiar thereto
    • 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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • F02M59/367—Pump inlet valves of the check valve type being open when actuated
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • F04B49/243—Bypassing by keeping open the inlet valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0076—Piston machines or pumps characterised by having positively-driven valving the members being actuated by electro-magnetic means

Definitions

  • the invention relates to a high pressure pump according to the Genus of the main claim.
  • a high pressure pump is known (EP 0 481 964 A2).
  • Such high pressure pumps are used for fuel injection Diesel engines used. You are between a low pressure tank and a high-pressure accumulator (rail) arranged and ensure that there is sufficient fuel in the high-pressure accumulator Amount and under sufficient high pressure available stands to control the working cylinders via injectors to supply the internal combustion engine with fuel.
  • FIG. 1 shows a first embodiment of the High pressure pump in the suction stroke
  • Figure 2 after the high pressure pump 1 before the start of delivery
  • 3 the high pressure pump according to FIG. 1 after the start of funding
  • FIG. 4 another embodiment the high pressure pump
  • Figure 5 shows a second variant the high pressure pump.
  • a high pressure pump 1 is used as a diesel injection pump and is for filling a high pressure accumulator 2 (also Rail called) determined.
  • a high pressure accumulator 2 also Rail called
  • Injectors not shown, connected via which in a manner not shown, the working cylinder an internal combustion engine with precisely measured quantities powered by diesel fuel.
  • the high-pressure pump 1 has a pump piston 3, which has a Tappet, not shown, in a pump cylinder 4 and is movable here and that as a movable wall is a working chamber 5 of the high pressure pump 1 limited.
  • a high pressure line 6 leads from the working chamber 5 to the high pressure accumulator 2; in it is an opening to the high pressure accumulator 2 Check valve 7 used.
  • a solenoid valve 9 is used so that it is designed as a ball Closing body 10 against the force of a valve spring 11 alone from the suction pressure in the inlet line 8 from its valve seat 12 can be lifted off. Closing body 10, valve spring 11 and Valve seat 12 thus form an independent check valve.
  • a valve lifter 13 is connected, which can be moved under magnetic force and then keeps the closing body 10 away from its valve seat 12.
  • a low pressure pump 14 belongs to the device, a low pressure tank 15 and a check valve or Low pressure relief valve 16 in a low pressure circuit 17th
  • FIG 1 shows the high pressure pump 1 during the suction stroke.
  • fuel from the low pressure circuit 17 passes through the inlet line 8 (arrow direction) and against the force of the Valve spring 11 lifted from its valve seat 12 valve closing body 10 into the working chamber 5.
  • the solenoid valve 9 is without electricity.
  • the solenoid valve 9 switched off. As shown in Figure 3 arrives the closing body 10 under the influence of the force of Valve spring 11 and under flow forces on its valve seat 12. The solenoid valve is closed. In the work chamber 5 of the high pressure pump 1 begins to build up pressure, and Diesel fuel is released through the check valve that opens 7 and via the high pressure line 6 (arrow direction) in the High pressure accumulator 2 promoted. The low pressure pump 14 promotes into the low pressure circuit 17.
  • the high-pressure pump 1 constructed according to the invention with the one described Mode of operation has the following advantages: It is enough a relatively small and simple magnet to make it through the Liquid flow already closed valve closing body 10 to keep in its open position.
  • a change in delivery rate is due to the quick response the pressure control when closing the solenoid valve 9 slightly perform.
  • the structure of the high-pressure pump 1 is also notable Simplicity out by neither a handlebar regulation nor a Control edge still a control bore another control magnet for a position control loop is necessary. Furthermore, the Tappet for high pressure pump 1 must be installed from above. The high-pressure pump 1 can also be without bottom capsules be carried out.
  • FIG 4 shows using the same reference numbers for the execution according to Figures 1 to 3 corresponding Share another type of high pressure pump 18.
  • a pump piston 19 is provided with a connecting channel 20, via the connection in the TDC, i.e. at the end of the delivery stroke between a working chamber 21 of the high pressure pump 18 and the low pressure container 15 is produced.
  • the connecting channel 20 consists in detail of a Longitudinal channel 22 and an annular groove 23 in the pump piston 19. Die Annular groove 23 forms one with a bore 24 in a wall 25 Pump cylinder 26 a spool valve 27, by the edges of the annular groove 23 the mouth of the bore 24 run over in the wall 25 of the pump cylinder 26.
  • the This type of construction differs from the following Figures 1 to 3 in that here a metering for the High-pressure accumulator 2 and a shutdown before TDC enables is. There is also a larger diameter of the pump piston conceivable.
  • FIG. 5 shows a type with a high pressure pump 28, which does not have its own fuel connection.
  • a pressure valve assembly 29 are a combined solenoid valve 30 with closing body 31, valve spring 32 and valve seat 33 and a check valve 34 summarized, and this Pressure valve assembly is with a working chamber 35 High pressure pump 28 in connection.
  • Check valve 34 monitors the high pressure line 6 to the high pressure accumulator 2, and a ring connection 36 is provided on the solenoid valve 30, to which the low pressure circuit 17 is connected. In the Operation is the same as that of FIGS. 1 to 3, so that a repeated description is unnecessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)
  • Reciprocating Pumps (AREA)
EP97110986A 1996-10-29 1997-07-02 Hochdruckpumpe Expired - Lifetime EP0840009B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19644915A DE19644915A1 (de) 1996-10-29 1996-10-29 Hochdruckpumpe
DE19644915 1996-10-29

Publications (3)

Publication Number Publication Date
EP0840009A2 EP0840009A2 (de) 1998-05-06
EP0840009A3 EP0840009A3 (de) 1999-12-01
EP0840009B1 true EP0840009B1 (de) 2003-10-15

Family

ID=7810300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110986A Expired - Lifetime EP0840009B1 (de) 1996-10-29 1997-07-02 Hochdruckpumpe

Country Status (5)

Country Link
US (1) US6116870A (ja)
EP (1) EP0840009B1 (ja)
JP (1) JPH10141177A (ja)
KR (1) KR100514275B1 (ja)
DE (2) DE19644915A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010041031A1 (de) 2010-09-20 2012-03-22 Robert Bosch Gmbh Gesteuertes Saugventil
WO2021150342A1 (en) 2020-01-23 2021-07-29 Texas Institute Of Science, Inc. Submersible pump assembly and method for use of same

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DE19644915A1 (de) * 1996-10-29 1998-04-30 Bosch Gmbh Robert Hochdruckpumpe
IT1306317B1 (it) 1998-07-16 2001-06-04 Magneti Marelli Spa Dispositivo di pompaggio ad alta pressione
DE19834121A1 (de) * 1998-07-29 2000-02-03 Bosch Gmbh Robert Kraftstoffversorgungsanlage einer Brennkraftmaschine
DE19860672A1 (de) * 1998-12-29 2000-07-13 Bosch Gmbh Robert Kolbenpumpe zur Kraftstoffhochdruckerzeugung
EP1477665B1 (en) * 1999-02-09 2008-04-23 Hitachi, Ltd. High pressure fuel supply pump for internal combustion engine
FR2793283B1 (fr) * 1999-05-07 2001-07-20 Leduc Rene Hydro Sa Procede permettant de fournir un debit variable de liquide a tres haute pression et pompe pour la mise en oeuvre de ce procede
DE10139055A1 (de) * 2001-08-08 2003-02-27 Bosch Gmbh Robert Verfahren, Computerprogramm, Steuer- und/oder Regelgerät sowie Kraftstoffsystem für eine Brennkraftmaschine
EP1296061A3 (en) * 2001-09-21 2005-03-16 Hitachi, Ltd. High pressure fuel pump
ITBO20010625A1 (it) * 2001-10-12 2003-04-12 Magneti Marelli Powertrain Spa Pompa ad alta pressione a portata variabile
DE10153189A1 (de) * 2001-10-27 2003-05-15 Bosch Gmbh Robert Kraftstoffpumpe, Kraftstoffsystem, Verfahren zum Betreiben eines Kraftstoffsystems sowie Brennkraftmaschine
GB2385386A (en) * 2002-02-15 2003-08-20 Delphi Tech Inc Pump assembly
DE10229395B4 (de) * 2002-06-29 2006-02-16 Robert Bosch Gmbh Verdrängermaschine, insbesondere Radialkolbenpumpe in einem Kraftstoffsystem einer Brennkraftmaschine, sowie hydraulisches System
ITBO20020498A1 (it) * 2002-07-30 2004-01-30 Magneti Marelli Powertrain Spa Impianto di iniezione di carburante di tipo common rail con pompa a portata variabile
DE10249688A1 (de) * 2002-10-25 2004-05-06 Robert Bosch Gmbh Kraftstoff-Hochdruckpumpe für eine Kraftstoffeinspritzanlage, insbesondere eine Common-Rail-Kraftstoffeinspritzanlage, von Brennkraftmaschinen
ITBO20040322A1 (it) * 2004-05-20 2004-08-20 Magneti Marelli Powertrain Spa Metodo ed impianto per l'iniezione diretta di carburante in un motore a combustione interna
ITBO20040485A1 (it) 2004-07-30 2004-10-30 Magneti Marelli Holding S P A Pompa carburante ad attuazione idraulica per un motore a combustione interna
US7819637B2 (en) * 2004-12-17 2010-10-26 Denso Corporation Solenoid valve, flow-metering valve, high-pressure fuel pump and fuel injection pump
JP4215000B2 (ja) * 2005-01-19 2009-01-28 株式会社デンソー 高圧ポンプ
JP4415884B2 (ja) 2005-03-11 2010-02-17 株式会社日立製作所 電磁駆動機構，電磁弁機構及び電磁駆動機構によって操作される吸入弁を備えた高圧燃料供給ポンプ，電磁弁機構を備えた高圧燃料供給ポンプ
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JP4455470B2 (ja) * 2005-10-19 2010-04-21 日立オートモティブシステムズ株式会社 高圧燃料ポンプ、及び高圧燃料ポンプのノーマルクローズ型の電磁弁のコントローラ
ATE487055T1 (de) * 2006-06-09 2010-11-15 Fiat Ricerche Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine
DE102007034038A1 (de) * 2007-07-20 2009-01-22 Robert Bosch Gmbh Hochdruckpumpe für ein Kraftstoffsystem einer Brennkraftmaschine
ATE472051T1 (de) 2007-09-13 2010-07-15 Magneti Marelli Spa Verfahren zur steuerung eines direkteinspritzungsystems von der common-rail art mit einem absperrventil um die flussrate einer hochdruckkraftstoffpumpe zu regeln
DE602007009109D1 (de) 2007-09-21 2010-10-21 Magneti Marelli Spa Steuerverfahren für ein Common-Rail Einspritzsystem mit einem Absperrventil zur Steuerung des Flusses einer Hochdruckbrennstoffpumpe
DE602007005260D1 (de) 2007-09-26 2010-04-22 Magneti Marelli Spa Verfahren zur Steuerung eines Common-Rail-Direkteinspritzungsystems mit einer Hochdruckkraftstoffpumpe
US20090139494A1 (en) * 2007-12-04 2009-06-04 Denso International America, Inc. Dual piston direct injection fuel pump
DE102008036120B4 (de) * 2008-08-01 2010-04-08 Continental Automotive Gmbh Verfahren zur Steuerung einer Hochdruck-Kraftstoffpumpe
JP4655122B2 (ja) * 2008-08-07 2011-03-23 株式会社デンソー 高圧ポンプの燃料導入方法
US9151289B2 (en) * 2008-08-21 2015-10-06 Cummins Inc. Fuel pump
EP2211058A1 (en) * 2009-01-27 2010-07-28 Sauer-Danfoss ApS Hydraulic pump
IT1395038B1 (it) 2009-08-12 2012-09-05 Magneti Marelli Spa Metodo di controllo di un impianto di iniezione diretta di tipo common-rail
EP2322802B1 (en) * 2009-11-13 2014-01-08 Artemis Intelligent Power Limited Electronically controlled valve
JP5012922B2 (ja) 2010-02-03 2012-08-29 株式会社デンソー 高圧ポンプ
JP5071525B2 (ja) * 2010-06-09 2012-11-14 株式会社デンソー 高圧ポンプ
DE102010043314A1 (de) * 2010-11-03 2012-05-03 J. Eberspächer GmbH & Co. KG Dosierpumpe
DE102011003396A1 (de) * 2011-01-31 2012-08-02 Continental Automotive Gmbh Pumpeneinheit für eine Hochdruckpumpe
JP5724661B2 (ja) * 2011-06-15 2015-05-27 株式会社デンソー 高圧ポンプおよびその制御方法
DE102012203243A1 (de) * 2012-03-01 2013-09-05 Robert Bosch Gmbh Kraftstoffpumpe
JP5630464B2 (ja) * 2012-06-26 2014-11-26 株式会社デンソー 燃料噴射制御装置
DE102012215068A1 (de) 2012-08-24 2014-02-27 Robert Bosch Gmbh Zylinderkopf für eine Pumpe, insbesondere Kraftstoffhochdruckpumpe, und Pumpe mit Zylinderkopf
US9599082B2 (en) * 2013-02-12 2017-03-21 Ford Global Technologies, Llc Direct injection fuel pump
CN105008709B (zh) * 2013-03-05 2018-04-20 斯坦蒂内有限责任公司 电控式入口计量单活塞燃油泵
DE102013210036A1 (de) * 2013-05-29 2014-12-04 Robert Bosch Gmbh Hochdruckpumpe für ein Kraftstoffeinspritzsystem
DE102013225418A1 (de) 2013-12-10 2015-06-11 Robert Bosch Gmbh Verfahren zum Betreiben einer Kraftstoffhochdruckpumpe einer Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine
DE102013225390A1 (de) 2013-12-10 2015-06-11 Robert Bosch Gmbh Verfahren zum Betreiben einer Kraftstoffhochdruckpumpe einer Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine
DE102014225982A1 (de) 2014-12-16 2016-06-16 Robert Bosch Gmbh Pumpe, insbesondere Kraftstoffhochdruckpumpe
US10100774B2 (en) * 2015-06-25 2018-10-16 Ford Global Technologies, Llc Systems and methods for fuel injection
CN106555745B (zh) * 2015-09-25 2018-04-17 中国石油化工股份有限公司 液控先导式水力自动调压注水泵
US10337480B2 (en) * 2015-09-30 2019-07-02 Hitachi Automotive Systems, Ltd. High-pressure fuel pump and control device
US10330065B2 (en) * 2016-03-07 2019-06-25 Stanadyne Llc Direct magnetically controlled inlet valve for fuel pump
DE102016210752A1 (de) * 2016-06-16 2017-12-21 Robert Bosch Gmbh Förderpumpe für kryogene Kraftstoffe und Kraftstofffördersystem
WO2018085517A2 (en) * 2016-11-02 2018-05-11 Eaton Corporation Cam-camless cylinder head and systems
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010041031A1 (de) 2010-09-20 2012-03-22 Robert Bosch Gmbh Gesteuertes Saugventil
WO2012038196A1 (de) 2010-09-20 2012-03-29 Robert Bosch Gmbh Gesteuertes saugventil
WO2021150342A1 (en) 2020-01-23 2021-07-29 Texas Institute Of Science, Inc. Submersible pump assembly and method for use of same
EP4093971A4 (en) * 2020-01-23 2024-03-20 Hess Corp SUBMERSIBLE PUMP ASSEMBLY AND ASSOCIATED METHOD OF USE

Also Published As

Publication number Publication date
EP0840009A2 (de) 1998-05-06
JPH10141177A (ja) 1998-05-26
DE59710857D1 (de) 2003-11-20
EP0840009A3 (de) 1999-12-01
US6116870A (en) 2000-09-12
KR19980032334A (ko) 1998-07-25
DE19644915A1 (de) 1998-04-30
KR100514275B1 (ko) 2005-11-25

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