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EP0840009A3 - High pressure pump - Google Patents

High pressure pump Download PDF

Info

Publication number
EP0840009A3
EP0840009A3 EP97110986A EP97110986A EP0840009A3 EP 0840009 A3 EP0840009 A3 EP 0840009A3 EP 97110986 A EP97110986 A EP 97110986A EP 97110986 A EP97110986 A EP 97110986A EP 0840009 A3 EP0840009 A3 EP 0840009A3
Authority
EP
European Patent Office
Prior art keywords
valve
pressure pump
high pressure
solenoid valve
closing body
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
EP97110986A
Other languages
German (de)
French (fr)
Other versions
EP0840009A2 (en
EP0840009B1 (en
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/en
Publication of EP0840009A3 publication Critical patent/EP0840009A3/en
Application granted granted Critical
Publication of EP0840009B1 publication Critical patent/EP0840009B1/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
    • 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

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)
  • Reciprocating Pumps (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

Es wird eine Hochdruckpumpe (1) vorgeschlagen, die eine Arbeitskammer (5) hat, die einerseits über ein Magnetventil (9) an einen Niederdruckkreislauf (17) und andererseits über ein Rückschlagventil (7) an einen Hochdruckspeicher (2) anschließbar ist.A high-pressure pump (1) is proposed, which has a working chamber (5), which on the one hand has a solenoid valve (9) to a low pressure circuit (17) and on the other via a check valve (7) to a high pressure accumulator (2) can be connected.

Das Magnetventil (9) hat einen federbelasteten Schließkörper (10), der mit einem Ventilsitz (12) zusammenarbeitet und mit diesem ein Rückschlagventil bildet. Über einen Ventilstößel (13) des Magnetventils (9) ist bei unbestromtem Magneten die Rückschlagfunktion des Schließkörpers (10) ausschaltbar, so daß auch bei einem anfänglichen Arbeitshub der Hochdruckpumpe (1) die Verbindung mit dem Niederdruckkreislauf (17) erhalten bleibt.The solenoid valve (9) has a spring-loaded closing body (10) that cooperates with a valve seat (12) and forms a check valve with this. Via a valve lifter (13) of the solenoid valve (9) is deenergized Magnets, the check function of the closing body (10) can be switched off, so that even with an initial working stroke High pressure pump (1) connects to the low pressure circuit (17) remains.

Erst bei einer während des Arbeitshubes erfolgenden Bestromung des Magnetventils (9) läßt der Ventilstößel (13) den Schließkörper (10) auf seinen Ventilsitz (12) gelangen, worauf dann die Hochdruckförderung beginnt.Only when the current is applied during the work stroke of the solenoid valve (9) leaves the valve tappet (13) Closing body (10) get on its valve seat (12), whereupon then the high pressure delivery begins.

Die Hochdruckpumpe (1) ist zur Verwendung bei Kraftstoffeinspritzanlagen von Dieselmotoren von Kraftfahrzeugen bestimmt.

Figure 00000001
The high-pressure pump (1) is intended for use in fuel injection systems for diesel engines in motor vehicles.
Figure 00000001
EP97110986A 1996-10-29 1997-07-02 High pressure pump Expired - Lifetime EP0840009B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19644915A DE19644915A1 (en) 1996-10-29 1996-10-29 high pressure pump
DE19644915 1996-10-29

Publications (3)

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

Family

ID=7810300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110986A Expired - Lifetime EP0840009B1 (en) 1996-10-29 1997-07-02 High pressure pump

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106555745B (en) * 2015-09-25 2018-04-17 中国石油化工股份有限公司 Hydraulic control pilot-operated type hydraulic automatism pressure-adjusted pump

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DE19644915A1 (en) * 1996-10-29 1998-04-30 Bosch Gmbh Robert high pressure pump
IT1306317B1 (en) * 1998-07-16 2001-06-04 Magneti Marelli Spa HIGH PRESSURE PUMPING DEVICE
DE19834121A1 (en) * 1998-07-29 2000-02-03 Bosch Gmbh Robert Fuel supply system of an internal combustion engine
DE19860672A1 (en) * 1998-12-29 2000-07-13 Bosch Gmbh Robert Piston pump for high-pressure fuel generation
DE69933714T2 (en) * 1999-02-09 2007-10-04 Hitachi, Ltd. High pressure fuel pump for an internal combustion engine
FR2793283B1 (en) * 1999-05-07 2001-07-20 Leduc Rene Hydro Sa PROCESS FOR PROVIDING A VARIABLE FLOW OF VERY HIGH PRESSURE LIQUID AND PUMP FOR CARRYING OUT THIS PROCESS
DE10139055A1 (en) * 2001-08-08 2003-02-27 Bosch Gmbh Robert Method, computer program, control and / or regulating device and fuel system for an internal combustion engine
EP1296061A3 (en) * 2001-09-21 2005-03-16 Hitachi, Ltd. High pressure fuel pump
ITBO20010625A1 (en) * 2001-10-12 2003-04-12 Magneti Marelli Powertrain Spa VARIABLE FLOW HIGH PRESSURE PUMP
DE10153189A1 (en) * 2001-10-27 2003-05-15 Bosch Gmbh Robert Fuel pump, fuel system, method for operating a fuel system and internal combustion engine
GB2385386A (en) * 2002-02-15 2003-08-20 Delphi Tech Inc Pump assembly
DE10229395B4 (en) * 2002-06-29 2006-02-16 Robert Bosch Gmbh Displacement machine, in particular radial piston pump in a fuel system of an internal combustion engine, and hydraulic system
ITBO20020498A1 (en) * 2002-07-30 2004-01-30 Magneti Marelli Powertrain Spa COMMON RAIL FUEL INJECTION SYSTEM WITH VARIABLE FLOW PUMP
DE10249688A1 (en) * 2002-10-25 2004-05-06 Robert Bosch Gmbh High-pressure fuel pump for a fuel injection system, in particular a common rail fuel injection system, of internal combustion engines
ITBO20040322A1 (en) * 2004-05-20 2004-08-20 Magneti Marelli Powertrain Spa METHOD AND SYSTEM FOR DIRECT FUEL INJECTION INTO AN INTERNAL COMBUSTION ENGINE
ITBO20040485A1 (en) 2004-07-30 2004-10-30 Magneti Marelli Holding S P A HYDRAULIC ACTUATION FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE
US7819637B2 (en) * 2004-12-17 2010-10-26 Denso Corporation Solenoid valve, flow-metering valve, high-pressure fuel pump and fuel injection pump
JP4215000B2 (en) * 2005-01-19 2009-01-28 株式会社デンソー High pressure pump
JP4415884B2 (en) 2005-03-11 2010-02-17 株式会社日立製作所 Electromagnetic drive mechanism, high pressure fuel supply pump with electromagnetic valve mechanism and intake valve operated by electromagnetic drive mechanism, high pressure fuel supply pump with electromagnetic valve mechanism
US20060255657A1 (en) * 2005-05-13 2006-11-16 De Ojeda William High pressure fluid system inlet throttle and method
US7540721B2 (en) 2005-07-29 2009-06-02 Wagner Spray Tech Corporation Automatic inlet check valve release
JP4107315B2 (en) * 2005-08-30 2008-06-25 コニカミノルタビジネステクノロジーズ株式会社 Information device, control method thereof, and control program
JP4455470B2 (en) * 2005-10-19 2010-04-21 日立オートモティブシステムズ株式会社 Controller for high pressure fuel pump and normally closed solenoid valve of high pressure fuel pump
ATE487055T1 (en) * 2006-06-09 2010-11-15 Fiat Ricerche FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
DE102007034038A1 (en) * 2007-07-20 2009-01-22 Robert Bosch Gmbh High-pressure pump for a fuel system of an internal combustion engine
ATE472051T1 (en) 2007-09-13 2010-07-15 Magneti Marelli Spa METHOD FOR CONTROLLING A COMMON-RAIL TYPE DIRECT INJECTION SYSTEM USING A SHUT-OFF VALVE TO CONTROL THE FLOW RATE OF A HIGH PRESSURE FUEL PUMP
DE602007009109D1 (en) * 2007-09-21 2010-10-21 Magneti Marelli Spa Control method for a common-rail injection system with a shut-off valve for controlling the flow of a high-pressure fuel pump
EP2042720B1 (en) 2007-09-26 2010-03-10 Magneti Marelli S.p.A. Control method of a direct injection system of the common rail type provided with a high-pressure fuel pump
US20090139494A1 (en) * 2007-12-04 2009-06-04 Denso International America, Inc. Dual piston direct injection fuel pump
DE102008036120B4 (en) * 2008-08-01 2010-04-08 Continental Automotive Gmbh Method for controlling a high-pressure fuel pump
JP4655122B2 (en) * 2008-08-07 2011-03-23 株式会社デンソー High-pressure pump fuel introduction method
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 (en) 2009-08-12 2012-09-05 Magneti Marelli Spa METHOD OF CONTROL OF A COMMON-RAIL TYPE DIRECT INJECTION SYSTEM
EP2322802B1 (en) * 2009-11-13 2014-01-08 Artemis Intelligent Power Limited Electronically controlled valve
JP5012922B2 (en) 2010-02-03 2012-08-29 株式会社デンソー High pressure pump
JP5071525B2 (en) * 2010-06-09 2012-11-14 株式会社デンソー High pressure pump
DE102010041031A1 (en) 2010-09-20 2012-03-22 Robert Bosch Gmbh Controlled suction valve
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DE102011003396A1 (en) * 2011-01-31 2012-08-02 Continental Automotive Gmbh Pump unit for a high-pressure pump
JP5724661B2 (en) * 2011-06-15 2015-05-27 株式会社デンソー High pressure pump and control method thereof
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DE102012215068A1 (en) 2012-08-24 2014-02-27 Robert Bosch Gmbh Cylinder head for one pump, in particular high-pressure fuel pump, and pump with cylinder head
US9599082B2 (en) * 2013-02-12 2017-03-21 Ford Global Technologies, Llc Direct injection fuel pump
EP2964949B1 (en) * 2013-03-05 2018-05-30 Stanadyne LLC Electronically controlled inlet metered single piston fuel pump
DE102013210036A1 (en) * 2013-05-29 2014-12-04 Robert Bosch Gmbh High pressure pump for a fuel injection system
DE102013225390A1 (en) 2013-12-10 2015-06-11 Robert Bosch Gmbh Method for operating a high-pressure fuel pump of a fuel injection device of an internal combustion engine
DE102013225418A1 (en) 2013-12-10 2015-06-11 Robert Bosch Gmbh Method for operating a high-pressure fuel pump of a fuel injection device of an internal combustion engine
DE102014225982A1 (en) 2014-12-16 2016-06-16 Robert Bosch Gmbh Pump, in particular high-pressure fuel pump
US10100774B2 (en) * 2015-06-25 2018-10-16 Ford Global Technologies, Llc Systems and methods for fuel injection
EP3358175A4 (en) * 2015-09-30 2019-05-15 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 (en) * 2016-06-16 2017-12-21 Robert Bosch Gmbh Feed pump for cryogenic fuels and fuel delivery system
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DE3140933A1 (en) * 1981-10-15 1983-05-05 Robert Bosch Gmbh, 7000 Stuttgart FUEL MEASURING DEVICE FOR FUEL INJECTION PUMPS
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US3709639A (en) * 1969-05-19 1973-01-09 Nippon Denso Co Discharge controlled reciprocating pumps
DE3140933A1 (en) * 1981-10-15 1983-05-05 Robert Bosch Gmbh, 7000 Stuttgart FUEL MEASURING DEVICE FOR FUEL INJECTION PUMPS
EP0279529A1 (en) * 1987-02-13 1988-08-24 LUCAS INDUSTRIES public limited company Fuel injection pump
EP0481964A2 (en) * 1988-11-24 1992-04-22 Nippondenso Co., Ltd. Variable-discharge high pressure pump
US5230613A (en) * 1990-07-16 1993-07-27 Diesel Technology Company Common rail fuel injection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106555745B (en) * 2015-09-25 2018-04-17 中国石油化工股份有限公司 Hydraulic control pilot-operated type hydraulic automatism pressure-adjusted pump

Also Published As

Publication number Publication date
KR100514275B1 (en) 2005-11-25
EP0840009A2 (en) 1998-05-06
EP0840009B1 (en) 2003-10-15
US6116870A (en) 2000-09-12
JPH10141177A (en) 1998-05-26
KR19980032334A (en) 1998-07-25
DE59710857D1 (en) 2003-11-20
DE19644915A1 (en) 1998-04-30

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