EP1076174A3 - Single cylinder high pressure pump - Google Patents

Single cylinder high pressure pump Download PDF

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Publication number
EP1076174A3
EP1076174A3 EP00116573A EP00116573A EP1076174A3 EP 1076174 A3 EP1076174 A3 EP 1076174A3 EP 00116573 A EP00116573 A EP 00116573A EP 00116573 A EP00116573 A EP 00116573A EP 1076174 A3 EP1076174 A3 EP 1076174A3
Authority
EP
European Patent Office
Prior art keywords
pump
pressure
pressure pump
cylinder
cylinder high
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
EP00116573A
Other languages
German (de)
French (fr)
Other versions
EP1076174B1 (en
EP1076174A2 (en
Inventor
Helmut Rembold
Peter Ropertz
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 EP1076174A2 publication Critical patent/EP1076174A2/en
Publication of EP1076174A3 publication Critical patent/EP1076174A3/en
Application granted granted Critical
Publication of EP1076174B1 publication Critical patent/EP1076174B1/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
    • F02M59/48—Assembling; Disassembling; Replacing
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder 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
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • 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
    • 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
    • F04B1/0421—Cylinders
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
    • F04B11/0016—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a fluid spring
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/166—Cylinder liners
    • F04B53/168—Mounting of cylinder liners in cylinders
    • 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
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped

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

Die Erfindung betrifft eine Einzylinder-Hochdruckpumpe zur Hochdruckversorgung in Common-Rail-Einspritzsystemen von Brennkraftmaschinen, mit einem in einem Pumpengehäuse (1) aufgenommenen Pumpenelement, das einen Pumpenkolben (5) umfasst, der in einem Pumpenzylinder (4) gegen die Vorspannkraft einer Druckfeder (7) hin und her bewegbar aufgenommen und durch einen Nocken (8) angetrieben ist, um mit Hochdruck beaufschlagten Kraftstoff in ein Rail zu fördern.The invention relates to a single-cylinder high-pressure pump for High pressure supply in common rail injection systems from Internal combustion engines, with one in a pump housing (1) picked up pump element, which has a pump piston (5) comprises the in a pump cylinder (4) against the Preload force of a compression spring (7) can be moved back and forth picked up and driven by a cam (8) high-pressure fuel into a rail promote.

Um die Lebensdauer der Einzylinder-Hochdruckpumpe zu verlängern, ist auf der vom Nockenantrieb (8) abgewandten Seite in dem Pumpengehäuse (1) eine Montageöffnung (3) zur Aufnahme des Pumpenelements vorgesehen.

Figure 00000001
In order to extend the life of the single-cylinder high-pressure pump, an assembly opening (3) for receiving the pump element is provided in the pump housing (1) on the side facing away from the cam drive (8).
Figure 00000001
EP20000116573 1999-08-13 2000-08-01 Single cylinder high pressure pump Expired - Lifetime EP1076174B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19938504 1999-08-13
DE1999138504 DE19938504A1 (en) 1999-08-13 1999-08-13 Single cylinder high pressure pump

Publications (3)

Publication Number Publication Date
EP1076174A2 EP1076174A2 (en) 2001-02-14
EP1076174A3 true EP1076174A3 (en) 2003-11-19
EP1076174B1 EP1076174B1 (en) 2005-11-02

Family

ID=7918356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000116573 Expired - Lifetime EP1076174B1 (en) 1999-08-13 2000-08-01 Single cylinder high pressure pump

Country Status (3)

Country Link
EP (1) EP1076174B1 (en)
JP (1) JP2001073907A (en)
DE (2) DE19938504A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348864A4 (en) * 2001-01-05 2005-03-16 Hitachi Ltd High-pressure fuel feed pump
DE10134069B4 (en) * 2001-07-13 2011-07-07 Robert Bosch GmbH, 70469 Fuel pump for a fuel system of an internal combustion engine
DE10156428A1 (en) * 2001-11-16 2003-06-12 Bosch Gmbh Robert Fuel-cooled pump element and high-pressure pump for a fuel injection system
DE10322603B4 (en) * 2003-05-20 2013-04-25 Robert Bosch Gmbh Piston pump, in particular high-pressure piston pump for internal combustion engines with direct injection
DE10362375B3 (en) * 2003-05-20 2016-11-17 Robert Bosch Gmbh High-pressure piston pump for internal combustion engines with direct injection
DE102004063074B4 (en) * 2004-12-28 2013-03-07 Robert Bosch Gmbh Piston pump, in particular high-pressure fuel pump for an internal combustion engine
DE102004063075B4 (en) * 2004-12-28 2015-11-26 Robert Bosch Gmbh High-pressure fuel pump for an internal combustion engine with a stepped piston and a quantity control valve
DE102006061231A1 (en) * 2006-12-22 2008-06-26 Robert Bosch Gmbh High pressure piston pump
DE112008002627A5 (en) * 2007-10-15 2010-12-16 Ixetic Bad Homburg Gmbh Radial piston pump
EP2557306A1 (en) * 2011-08-08 2013-02-13 Delphi Technologies Holding S.à.r.l. Fuel pump
DE102013224797A1 (en) 2013-12-04 2015-06-11 Robert Bosch Gmbh Fuel pump with a piston, at its end facing a drive end a spring divider is arranged
JP6361337B2 (en) * 2014-07-10 2018-07-25 株式会社デンソー High pressure pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4107979A1 (en) * 1991-03-13 1992-09-17 Bosch Gmbh Robert HYDRAULIC HIGH PRESSURE PUMP FOR MOTOR VEHICLE BRAKE SYSTEMS
EP0757174A2 (en) * 1995-07-31 1997-02-05 WOODWARD GOVERNOR GERMANY GmbH Method of changing the timing of fuel injection pumps on a fuel injection pump thereof
EP0878621A2 (en) * 1997-05-16 1998-11-18 Mitsubishi Denki Kabushiki Kaisha High-pressure fuel-feed pump
DE19742611A1 (en) * 1997-07-30 1999-02-04 Bosch Gmbh Robert Piston pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS635158A (en) * 1986-06-24 1988-01-11 Diesel Kiki Co Ltd Unit injector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4107979A1 (en) * 1991-03-13 1992-09-17 Bosch Gmbh Robert HYDRAULIC HIGH PRESSURE PUMP FOR MOTOR VEHICLE BRAKE SYSTEMS
EP0757174A2 (en) * 1995-07-31 1997-02-05 WOODWARD GOVERNOR GERMANY GmbH Method of changing the timing of fuel injection pumps on a fuel injection pump thereof
EP0878621A2 (en) * 1997-05-16 1998-11-18 Mitsubishi Denki Kabushiki Kaisha High-pressure fuel-feed pump
DE19742611A1 (en) * 1997-07-30 1999-02-04 Bosch Gmbh Robert Piston pump

Also Published As

Publication number Publication date
DE50011493D1 (en) 2005-12-08
DE19938504A1 (en) 2001-03-08
EP1076174B1 (en) 2005-11-02
EP1076174A2 (en) 2001-02-14
JP2001073907A (en) 2001-03-21

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