EP1361357A2 - Pompe à carburant notamment pour un moteur à combustion interne et à injection directe - Google Patents

Pompe à carburant notamment pour un moteur à combustion interne et à injection directe Download PDF

Info

Publication number
EP1361357A2
EP1361357A2 EP20030005033 EP03005033A EP1361357A2 EP 1361357 A2 EP1361357 A2 EP 1361357A2 EP 20030005033 EP20030005033 EP 20030005033 EP 03005033 A EP03005033 A EP 03005033A EP 1361357 A2 EP1361357 A2 EP 1361357A2
Authority
EP
European Patent Office
Prior art keywords
valve
fuel pump
guide
guide opening
valve element
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Withdrawn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
EP20030005033
Other languages
German (de)
English (en)
Other versions
EP1361357A3 (fr
Inventor
Manfred Hess
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 EP1361357A2 publication Critical patent/EP1361357A2/fr
Publication of EP1361357A3 publication Critical patent/EP1361357A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0452—Distribution members, e.g. 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
    • 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
    • F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
    • 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
    • F02M59/462—Delivery 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1022—Disc valves having means for guiding the closure member axially
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
    • 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
    • F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
    • F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural

Definitions

  • the invention first relates to a fuel pump, especially for an internal combustion engine, with Direct injection, with a housing, with at least one Piston, which is received in the housing with Drive means which the piston in a back and forth Moving here with a work space, which is limited in some areas by the piston, with a Inlet duct and with an outlet duct, which with the Work space can be connected to a first one Valve device between the work area and the inlet duct and a second valve device between the work area and Outlet channel, the valve element of one Valve device has a guide section which at least in some areas in a guide opening is included.
  • Such a fuel pump serves as a high-pressure fuel pump for diesel engines of motor vehicles.
  • the fuel is pumped in by the high pressure fuel pump under high pressure promoted a fuel rail, in which it is stored under high pressure. From the fuel rail the fuel gets to injectors, which directly into the combustion chambers of the internal combustion engine inject.
  • valves In the known fuel pump, the two are Valve devices in a compact unit accommodated.
  • the valve element is supported existing between work space and inlet duct Valve device ("inlet valve”) on the valve element between the work area and the outlet duct Valve device (“exhaust valve”).
  • inlet valve inlet valve
  • exhaust valve outlet valve
  • the valve element the inlet valve is also cylindrical Guide pin in a guide opening of the valve element of the exhaust valve.
  • the present invention has for its object a Fuel pump of the type mentioned above to further that the internal combustion engine in which they is used, can be manufactured cheaper and has a better starting behavior and at the one safe shutdown of fuel delivery guaranteed is.
  • This task is the beginning of a fuel pump mentioned type in that the guide opening in Valve element of the other valve device is formed and the peripheral surface of the guide portion and / or the Guide opening has at least one recess which is the contact area between the guide section and Guide opening is reduced.
  • the starting behavior of an internal combustion engine which with the fuel pump according to the invention is significantly improved since the Zero feed throttle can be significantly smaller than so far.
  • the fuel pump according to the invention namely even if one in front of the fuel pump arranged metering unit to a certain amount of leakage Let fuel through to the fuel pump, no Fueled.
  • the Inlet channels are interconnected, this leads triggered during a delivery stroke of one cylinder Pressure pulse to open the valve element of the Intake valve on the other cylinder, which is currently in the suction phase.
  • fuel gets through the suction phase of this cylinder in the work area and will during the subsequent delivery stroke to the fuel manifold transported.
  • valve element of the intake valve from the valve element of the exhaust valve is achieved that the contact area between the two elements is reduced. This will cause friction between the two Elements, which ultimately leads to that Valve element of the exhaust valve during a movement Valve element of the intake valve not moved.
  • a "mechanical" decoupling created.
  • this Fuel pump is suggested to be one Has connecting channel which the guide opening with connects the work space.
  • Such a connection channel prevents it from moving the valve element of the exhaust valve to a pressure drop in the Guide opening comes, which is also a movement of the Valve element of the intake valve could provoke.
  • this connection channel becomes the harmful pressure impulses prevented even better.
  • valve element of the exhaust valve somewhat can be shortened to an opening movement of the Valve element of the inlet valve the necessary distance between the two valve elements.
  • the recesses are so are formed that between the guide section and Guide opening just a substantially linear There is contact. In this case, the frictional forces minimal between guide section and guide opening. However, it must be ensured that the Contact areas are so large that no excessive Wear occurs.
  • the guide section is designed such that it at least three radially extending and preferably wings distributed around the circumference.
  • wings is on the one hand safe guidance of the Valve element possible, on the other hand, allow Recesses or the passages between the wings one largely unimpeded flow of fuel. A such fuel pump thus works with high Efficiency.
  • the guide opening is designed so that it at least three radially extending and preferably over the Includes circumferentially distributed wings.
  • the wings are ground hollow. This increases the stability of the valve element and creates a larger flow area.
  • valve element of the first valve device on the valve element of the second Valve device is supported via a clamping element so that it is pressed against the associated seat.
  • Such Fuel pump builds very compact.
  • the attack of the tensioning element on the first valve element is thereby facilitated that the first valve element plate-shaped support section, preferably a disc, includes, on which the clamping element is supported.
  • a fuel system as a whole carries this Reference number 10. It serves to supply one Internal combustion engine 12 with fuel.
  • the Internal combustion engine 12 is a Diesel engine, basically that is shown
  • fuel system 10 also for gasoline internal combustion engines used.
  • the fuel system 10 includes a fuel tank 14, from which a mechanical, designed as a gear pump Fuel pump 16 promotes fuel through a filter 18.
  • the fuel passes from the fuel pump 16 via a Metering unit 20 and a fuel line 21 to one High pressure fuel pump 22. From there it is over a Fuel line 23 further promoted in a fuel rail 24 ("rail") in which the fuel is below high pressure is stored.
  • Several injectors are on the fuel rail 24 26 connected to the fuel in combustion chambers 28 inject directly.
  • a zero delivery line 30 in which a zero delivery throttle 32 is arranged.
  • Essential functions of the Internal combustion engine 12 are controlled by a control and Control device 34 controlled or regulated. That's the way it is Metering unit 20 to the control and regulating device 34 connected and controlled by this.
  • the high-pressure fuel pump 22 is a 4-ram high-pressure pump in a V arrangement ( Figure 2). This comes especially with high fuel systems Quantity requirements for use.
  • Figure 2 are the two Cylinders of a cylinder plane are visible. You wear that Reference numerals 36a and 36b.
  • the cylinders 36a and 36b are Part of a housing 38. Pistons 40a and 40b are in them added. These are from a camshaft 42 in a Moved back and forth.
  • the pistons 40a and 40b limit working spaces 44a and 44b.
  • Valve blocks 46a and 46b The working spaces 44a and 44b of Valve blocks 46a and 46b limited. Their exact structure is explained in detail below. Between Cylinders 36a and 36b sit on the housing 38 Metering unit 20. From this lead inlet channels 48a and 48b in the housing 38 to the valve blocks 46a and 46b. In the Valve blocks 46a and 46b are outlet channels 50a and 50b available. These lead to the fuel line 23 and continue to fuel rail 24.
  • valve blocks 46a and 46b are now exemplarily under 3 with reference to a valve block 46 explained.
  • This comprises a cylindrical valve body 52.
  • a valve space 54 in it, which via a Connection channel 56 is connected to the work space 44.
  • One leads from the valve chamber 54 to the axis of the valve body 52 Coaxial bore 57 in the installation position towards Working space 44.
  • a slant (without reference number) in the transition area between the guide opening 58 and the valve space 54 forms a valve seat for the valve element 62.
  • the valve seat and the valve element 62 form a whole Inlet valve 64 through which fuel from the Metering unit 20 via the inlet channel 48 with its im Valve body 52 formed sections 66 and 57 in the Valve space 54 and further into the work space 44 can.
  • valve seat Extends opposite from the guide opening 58 from the valve chamber 54 a bore 68 in which a Guide section 70 of a valve element 72 is guided.
  • the valve seat and the valve element 72 together form an outlet valve 74, via which the Fuel from the work space 44 via the connecting channel 56, the valve chamber 54 and the outlet channel 50 into the Fuel line 23 and on to the fuel rail 24 can reach.
  • valve element 72 of the exhaust valve 74 is for Valve chamber 54 introduced a blind bore 76.
  • a compression spring 80 is supported on the base side 78. their the other end is due to a paragraph 82 of the Valve element 62 of the inlet valve 64 on. In this way is the valve element 62 of the intake valve 64 against pressed his valve seat.
  • the valve element 72 of the Exhaust valve 74 is countered by a compression spring 84 acted on its valve seat.
  • the guide section 60 of the valve element 62 of the Intake valve 64 is as shown in FIGS. 4 and 5 can be seen in the form of wings 86a, 86b and 86c executed, which extend radially in a star shape and over the circumference is distributed. At their radial outer ends are wings 86a, 86b and 86c, respectively trained that there is a significantly reduced contact with the wall of the guide opening 58 in the valve body 52 results. Between the wings 86a, 86b and 86c are hollow ground recesses 88a, 88b and 88c available.
  • the fuel system 10 with the high pressure fuel pump 22 works as follows:
  • the metering unit 20 is from Control and regulating device 34 controlled so that only those Fuel amount to high pressure fuel pump 22 and from this further reaches the fuel collecting line 24, which from the injectors 26 into the combustion chambers 28 is injected.
  • the piston 40a or 40b moves to the side radially inward so that the pressure in the corresponding Working space 44a or 44b decreases. This also reduces the Pressure in the valve chamber 54, whereby the valve element 62 of the intake valve 64 of the corresponding cylinder 36a or 36b takes off from its seat.
  • Fuel can thus flow from the metering unit 20 into the Flow work space 44a or 44b.
  • the reaction of the Valve element 62 of the inlet valve 64 is done very much spontaneously because the friction between the guide portion 60 and the guide opening 58 is only very small.
  • the valve element 62 is through the Guide section 60 in the guide opening 58 exactly centered so that when closed the Connection between the valve chamber 54 and the inlet duct 48 seals reliably.
  • the recesses 88a, 88b and 88c enable 64 with the inlet valve open largely unimpeded inflow of fuel to the Working space 44a or 44b.
  • the metering unit 20 is controlled by the control and regulating device 34 closed. Due to the system, however, it also happens closed metering unit 20 to a certain Leakage amount of fuel, which over the Fuel line 21 into the inlet channels 48a and 48b arrives. However, since the intake valve 64 is from the exhaust valve 74 is decoupled, the inlet valve 64 also remains in in this case reliably closed, so that no Fuel is delivered to the fuel rail 24 becomes. The corresponding pressure curve carries this in FIG Numeral 90.
  • the decoupling ensures that for example during the delivery stroke of the cylinder 36a Valve element 62 of the intake valve 64 in this cylinder does not stand out from its valve seat and therefore none Trigger pressure pulse in the inlet channels 48a and 48b. There the cylinder 36b is in a suction phase when the Cylinder 36a is in a delivery phase, one could such pressure pulse easily to lift the Valve element 62 of intake valve 64 of cylinder 36b to lead.
  • Figure 7 is a valve body 52 of a second Embodiment of a high pressure fuel pump 22nd shown.
  • FIG 7 such elements and Areas that have equivalent functions to that above have described embodiment, the same Reference numerals. It will not go into detail again received.
  • This has the advantage that a conventional valve element 72 can be used for the exhaust valve 74.
  • to Support of the compression spring 80 on the valve element 62 is one Washer 82 is provided which on the axial edges of the Wing 86a, 86b and 86c rests.
  • To equalize the pressure Guide opening 58 is in the wall surrounding this Valve element 72 a pressure equalization bore 94 is present, via a longitudinal groove 96 with the valve chamber 54 communicated.
  • FIG. 8 shows a region of a modification of that in FIG. 7 Inlet valve 64 shown or that of FIG. 7 Exhaust valve 74 shown.
  • Guide section 90 of the valve element 62 of the Inlet valve 64 no wings. Instead extend tapered webs 86 from the radial inner peripheral wall of the blind bore 76 of the valve element 72 of the exhaust valve 74.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
EP20030005033 2002-05-07 2003-03-06 Pompe à carburant notamment pour un moteur à combustion interne et à injection directe Withdrawn EP1361357A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10220281 2002-05-07
DE2002120281 DE10220281A1 (de) 2002-05-07 2002-05-07 Kraftstoffpumpe, insbesondere für eine Brennkraftmaschine mit Direkteinspritzung

Publications (2)

Publication Number Publication Date
EP1361357A2 true EP1361357A2 (fr) 2003-11-12
EP1361357A3 EP1361357A3 (fr) 2004-12-15

Family

ID=29225077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030005033 Withdrawn EP1361357A3 (fr) 2002-05-07 2003-03-06 Pompe à carburant notamment pour un moteur à combustion interne et à injection directe

Country Status (4)

Country Link
US (1) US6889662B2 (fr)
EP (1) EP1361357A3 (fr)
JP (1) JP2003328896A (fr)
DE (1) DE10220281A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7305968B2 (en) 2004-06-30 2007-12-11 C.R.F. Societa Consortile Per Azioni Injection system for an internal-combustion engine
CN110529315A (zh) * 2019-08-06 2019-12-03 一汽解放汽车有限公司 一种进油阀、高压油泵及发动机

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0707329A2 (pt) * 2006-01-31 2011-05-03 Bosch Gmbh Robert bomba de alta pressão para alimentar combustìvel para um motor de combustão interna
DE102006061558A1 (de) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Kraftstoff-Fördereinrichtung für eine Brennkraftmaschine
JP2008215148A (ja) * 2007-03-01 2008-09-18 Yanmar Co Ltd サプライポンプ
DE102011004993A1 (de) * 2011-03-02 2012-09-06 Robert Bosch Gmbh Ventileinrichtung zum Schalten oder Zumessen eines Fluids
CN202182020U (zh) * 2011-08-25 2012-04-04 博世汽车柴油系统股份有限公司 用于高压流体泵中的流体进出阀
US20130108500A1 (en) * 2011-10-29 2013-05-02 Jeff Lichthardt Rebuildable cassette assembly for displacement pump
US9169817B2 (en) * 2012-12-05 2015-10-27 Ford Global Technologies, Llc Fuel pump with metering valve
US11421637B2 (en) 2015-01-05 2022-08-23 Cummins Inc. High pressure diesel fuel pump pumping element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5302087A (en) * 1993-04-29 1994-04-12 Butterworth Jetting Systems, Inc. High pressure pump with loaded compression rods and method
DE19541507A1 (de) * 1995-11-08 1997-05-15 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
US5636975A (en) * 1994-04-04 1997-06-10 Reynolds Metals Company Inlet and discharge valve arrangement for a high pressure pump
EP1221552A2 (fr) * 1996-07-05 2002-07-10 Nippon Soken, Inc. Pompe haute pression pour système d'injection de combustible de moteur Diesel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332783Y2 (fr) * 1985-06-13 1991-07-11
DE3644597A1 (de) * 1986-12-29 1988-07-07 Bosch Gmbh Robert Verfahren zur herstellung des beweglichen ventilgliedes eines druckventils fuer kraftstoffeinspritzpumpen
DE3820707A1 (de) * 1988-06-18 1989-12-21 Bosch Gmbh Robert Einspritzpumpe fuer brennkraftmaschinen
US5176175A (en) * 1989-03-29 1993-01-05 Cooper Industries, Inc. Valve assembly
IL110288A0 (en) * 1994-07-12 1994-10-21 Bron Dan Self-cleaning inlet head for a fluid
US5605449A (en) * 1996-01-25 1997-02-25 Wendy Buskop Suction and discharge valve arrangement for a high pressure piston pump
DE19735371B4 (de) * 1997-08-14 2004-02-19 Siemens Ag Kraftstoffpumpe mit einem Pumpenzylinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5302087A (en) * 1993-04-29 1994-04-12 Butterworth Jetting Systems, Inc. High pressure pump with loaded compression rods and method
US5636975A (en) * 1994-04-04 1997-06-10 Reynolds Metals Company Inlet and discharge valve arrangement for a high pressure pump
DE19541507A1 (de) * 1995-11-08 1997-05-15 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
EP1221552A2 (fr) * 1996-07-05 2002-07-10 Nippon Soken, Inc. Pompe haute pression pour système d'injection de combustible de moteur Diesel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7305968B2 (en) 2004-06-30 2007-12-11 C.R.F. Societa Consortile Per Azioni Injection system for an internal-combustion engine
US7509943B2 (en) 2004-06-30 2009-03-31 C.R.F. Societa Consortile Per Azioni Injection system for an internal-combustion engine
CN110529315A (zh) * 2019-08-06 2019-12-03 一汽解放汽车有限公司 一种进油阀、高压油泵及发动机
CN110529315B (zh) * 2019-08-06 2021-03-19 一汽解放汽车有限公司 一种进油阀、高压油泵及发动机

Also Published As

Publication number Publication date
DE10220281A1 (de) 2003-11-27
US20040016420A1 (en) 2004-01-29
US6889662B2 (en) 2005-05-10
EP1361357A3 (fr) 2004-12-15
JP2003328896A (ja) 2003-11-19

Similar Documents

Publication Publication Date Title
EP0391366B1 (fr) Appareil d'injection de combustible
EP2108080B1 (fr) Injecteur pour injecter du carburant dans les chambres de combustion des moteurs à combustion interne
EP0801710B1 (fr) Dispositif d'injection de carburant pour moteurs a combustion interne
DE102006013703A1 (de) Kraftstoffpumpe
DE3224769A1 (de) Kraftstoffeinspritzeinrichtung fuer brennkraftmaschinen, insbesondere pumpeduese fuer dieselbrennkraftmaschinen
DE69003186T2 (de) Brennstoffeinspritzpumpe mit Rückstromentlüftung.
EP1141539B1 (fr) Pompe a piston pour carburant sous haute pression
DE19545162B4 (de) Brennstoffeinspritzvorrichtung mit federvorgespanntem Steuerventil
DE4320620B4 (de) Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
EP1045983B1 (fr) Soupape d'injection de carburant pour moteurs a combustion interne
EP0451227B1 (fr) Pompe d'injection de carburant
EP1361357A2 (fr) Pompe à carburant notamment pour un moteur à combustion interne et à injection directe
EP0915252A2 (fr) Système d'injection par alimentation commune des injecteurs
DE10117600C1 (de) Hochdruck-Kraftstoffpumpe für ein Kraftstoffsystem einer direkteinspritzenden Brennkraftmaschine, Kraftstoffsystem sowie Brennkraftmaschine
DE10139055A1 (de) Verfahren, Computerprogramm, Steuer- und/oder Regelgerät sowie Kraftstoffsystem für eine Brennkraftmaschine
DE10154133C1 (de) Kraftstoffsystem
DE10153189A1 (de) Kraftstoffpumpe, Kraftstoffsystem, Verfahren zum Betreiben eines Kraftstoffsystems sowie Brennkraftmaschine
DE3013088A1 (de) Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
EP1925812A1 (fr) Soupape d'injection de carburant pour moteurs à combustion interne
DE2913909C2 (fr)
DE102005061925A1 (de) Brennstoffeinspritzvorrichtung
EP0530206B1 (fr) Pompe d'injection de carburant pour moteurs a combustion interne
EP1671028A1 (fr) Soupape pour commander une liaison dans un systeme de liquide haute pression, notamment un dispositif d'injection de carburant pour un moteur a combustion interne
EP0254292B1 (fr) Compresseur à piston entraîné par les impulsions des gaz d'échappement d'un moteur à combustion interne
DE4441113C1 (de) Kraftstoffhochdruckpumpe für Brennkraftmaschinen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20050616