EP1361357A3 - Fuel pump, in particular for an internal combustion engine with direct injection - Google Patents

Fuel pump, in particular for an internal combustion engine with direct injection Download PDF

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Publication number
EP1361357A3
EP1361357A3 EP20030005033 EP03005033A EP1361357A3 EP 1361357 A3 EP1361357 A3 EP 1361357A3 EP 20030005033 EP20030005033 EP 20030005033 EP 03005033 A EP03005033 A EP 03005033A EP 1361357 A3 EP1361357 A3 EP 1361357A3
Authority
EP
European Patent Office
Prior art keywords
fuel pump
valve device
combustion engine
internal combustion
direct injection
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Withdrawn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)
French (fr)
Other versions
EP1361357A2 (en
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/en
Publication of EP1361357A3 publication Critical patent/EP1361357A3/en
Withdrawn legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Eine Kraftstoffpumpe, welche für eine Brennkraftmaschine mit Direkteinspritzung eingesetzt wird, umfasst ein Gehäuse und mindestens einen Kolben, der in dem Gehäuse aufgenommen ist. Ferner sind Antriebsmittel vorhanden, welche den Kolben in eine Hin- und Herbewegung versetzen. Ein Arbeitsraum wird bereichsweise vom Kolben begrenzt. Ein Einlasskanal (56) und ein Auslasskanal sind mit dem Arbeitsraum verbindbar. Zwischen dem Einlasskanal (56) und dem Arbeitsraum ist eine erste Ventileinrichtung (64) und zwischen dem Arbeitsraum und dem Auslasskanal eine zweite Ventileinrichtung (74) vorgesehen. Das Ventilelement (62) der einen Ventileinrichtung (64) weist einen Führungsabschnitt (60) auf, welcher in einer Führungsöffnung (58) aufgenommen ist. Um zu verhindern, dass von der Kraftstoffpumpe ungewollt Kraftstoff gefördert wird, wird vorgeschlagen, dass die Führungsöffnung (58) im Ventilelement (72) der anderen Ventileinrichtung (74) ausgebildet ist und die Umfangsfläche des Führungsabschnitts (60) und/oder der Führungsöffnung mindestens eine Ausnehmung (88) aufweist, durch welche die Kontaktfläche zwischen Führungsabschnitt (60) und Führungsöffnung (58) reduziert wird.

Figure 00000001
A fuel pump, which is used for an internal combustion engine with direct injection, comprises a housing and at least one piston, which is accommodated in the housing. There are also drive means which cause the piston to reciprocate. A working area is delimited in some areas by the piston. An inlet duct (56) and an outlet duct can be connected to the work space. A first valve device (64) is provided between the inlet duct (56) and the working space and a second valve device (74) is provided between the working space and the outlet duct. The valve element (62) of the one valve device (64) has a guide section (60) which is received in a guide opening (58). To prevent the fuel pump from delivering fuel unintentionally, it is proposed that the guide opening (58) be formed in the valve element (72) of the other valve device (74) and the peripheral surface of the guide section (60) and / or the guide opening should be at least one Has recess (88) through which the contact area between the guide section (60) and the guide opening (58) is reduced.
Figure 00000001
EP20030005033 2002-05-07 2003-03-06 Fuel pump, in particular for an internal combustion engine with direct injection Withdrawn EP1361357A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10220281 2002-05-07
DE2002120281 DE10220281A1 (en) 2002-05-07 2002-05-07 Fuel pump, in particular for an internal combustion engine with direct injection

Publications (2)

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

Family

ID=29225077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030005033 Withdrawn EP1361357A3 (en) 2002-05-07 2003-03-06 Fuel pump, in particular for an internal combustion engine with direct injection

Country Status (4)

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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE413527T1 (en) 2004-06-30 2008-11-15 Fiat Ricerche FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
BRPI0707329A2 (en) * 2006-01-31 2011-05-03 Bosch Gmbh Robert high pressure pump to fuel fuel for an internal combustion engine
DE102006061558A1 (en) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Fuel delivery device for internal combustion engine of motor vehicle, has adjustable throttle device arranged upstream to suction valve, where outlet of throttle device is arranged directly proximate to suction valve
JP2008215148A (en) * 2007-03-01 2008-09-18 Yanmar Co Ltd Supply pump
DE102011004993A1 (en) * 2011-03-02 2012-09-06 Robert Bosch Gmbh Valve device for switching or metering a fluid
CN202182020U (en) * 2011-08-25 2012-04-04 博世汽车柴油系统股份有限公司 Fluid inlet and outlet valve for high-pressure fluid pump
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
CN110529315B (en) * 2019-08-06 2021-03-19 一汽解放汽车有限公司 Oil inlet valve, high-pressure oil pump and engine

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 (en) * 1995-11-08 1997-05-15 Bosch Gmbh Robert Fuel injection device for internal combustion engines
US5636975A (en) * 1994-04-04 1997-06-10 Reynolds Metals Company Inlet and discharge valve arrangement for a high pressure pump
EP1221552A2 (en) * 1996-07-05 2002-07-10 Nippon Soken, Inc. High-pressure pump for use in fuel injection system for diesel engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332783Y2 (en) * 1985-06-13 1991-07-11
DE3644597A1 (en) * 1986-12-29 1988-07-07 Bosch Gmbh Robert METHOD FOR PRODUCING THE MOVABLE VALVE MEMBER OF A PRESSURE VALVE FOR FUEL INJECTION PUMPS
DE3820707A1 (en) * 1988-06-18 1989-12-21 Bosch Gmbh Robert INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
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 (en) * 1997-08-14 2004-02-19 Siemens Ag Fuel pump with a pump cylinder

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 (en) * 1995-11-08 1997-05-15 Bosch Gmbh Robert Fuel injection device for internal combustion engines
EP1221552A2 (en) * 1996-07-05 2002-07-10 Nippon Soken, Inc. High-pressure pump for use in fuel injection system for diesel engine

Also Published As

Publication number Publication date
EP1361357A2 (en) 2003-11-12
DE10220281A1 (en) 2003-11-27
US20040016420A1 (en) 2004-01-29
US6889662B2 (en) 2005-05-10
JP2003328896A (en) 2003-11-19

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