EP1306553A3 - Fuel pump, fuel system and method for operating a fuel system and an internal combustion engine - Google Patents

Fuel pump, fuel system and method for operating a fuel system and an internal combustion engine Download PDF

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Publication number
EP1306553A3
EP1306553A3 EP02017583A EP02017583A EP1306553A3 EP 1306553 A3 EP1306553 A3 EP 1306553A3 EP 02017583 A EP02017583 A EP 02017583A EP 02017583 A EP02017583 A EP 02017583A EP 1306553 A3 EP1306553 A3 EP 1306553A3
Authority
EP
European Patent Office
Prior art keywords
fuel system
fuel
pressure area
operating
combustion engine
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Withdrawn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
EP02017583A
Other languages
German (de)
French (fr)
Other versions
EP1306553A2 (en
Inventor
Helmut Rembold
Klaus Joss
Jens Wolber
Thomas Dr. Frenz
Uwe Mueller
Markus Amler
Thomas Fuerst
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 EP1306553A2 publication Critical patent/EP1306553A2/en
Publication of EP1306553A3 publication Critical patent/EP1306553A3/en
Withdrawn legal-status Critical Current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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
    • 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
    • F02M59/04—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 special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
    • F02M59/06—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 special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
    • 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
    • F02M59/08—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 two or more pumping elements with conjoint outlet or several pumping elements feeding one engine cylinder
    • 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
    • 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
    • F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
    • F04B1/0536—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units
    • F04B1/0538—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units located side-by-side
    • 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

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 (14) umfasst ein Gehäuse (46) und mindestens eine Antriebswelle (38). Ferner ist eine Mehrzahl von Pumpelementen (44) vorgesehen, welche von der Antriebswelle (38) angetrieben werden und welche jeweils einen Arbeitsraum (48) begrenzen. Die Kraftstoffpumpe (14) umfasst einen einlassseitigen Niederdruckbereich (18) und einen Hochdruckbereich (20). Um die Belastung der Komponenten im Niederdruckbereich 18 möglichst gering zu halten, wird vorgeschlagen, dass mindestens einem Arbeitsraum (48b, 48c) eine individuell ansteuerbare Ventileinrichtung (54b, 54c) zugeordnet ist, mit der dieser Arbeitsraum (48b, 48c) mit dem Niederdruckbereich (18) zwangsweise verbunden werden kann, so dass aus diesem Arbeitsraum (48b, 48c) wenigstens zeitweise nicht in den Hochdruckbereich (20) gefördert wird.

Figure 00000001
A fuel pump (14) comprises a housing (46) and at least one drive shaft (38). A plurality of pump elements (44) are also provided, which are driven by the drive shaft (38) and which each delimit a working space (48). The fuel pump (14) comprises an inlet-side low pressure area (18) and a high pressure area (20). In order to keep the load on the components in the low pressure area 18 as low as possible, it is proposed that at least one work space (48b, 48c) is assigned an individually controllable valve device (54b, 54c) with which this work space (48b, 48c) with the low pressure area ( 18) can be forcibly connected, so that delivery from this working space (48b, 48c) at least temporarily into the high pressure area (20) is not possible.
Figure 00000001
EP02017583A 2001-10-27 2002-08-07 Fuel pump, fuel system and method for operating a fuel system and an internal combustion engine Withdrawn EP1306553A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10153189 2001-10-27
DE2001153189 DE10153189A1 (en) 2001-10-27 2001-10-27 Fuel pump, fuel system, method for operating a fuel system and internal combustion engine

Publications (2)

Publication Number Publication Date
EP1306553A2 EP1306553A2 (en) 2003-05-02
EP1306553A3 true EP1306553A3 (en) 2004-08-04

Family

ID=7703999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02017583A Withdrawn EP1306553A3 (en) 2001-10-27 2002-08-07 Fuel pump, fuel system and method for operating a fuel system and an internal combustion engine

Country Status (3)

Country Link
EP (1) EP1306553A3 (en)
JP (1) JP2003148290A (en)
DE (1) DE10153189A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6932583B2 (en) * 2001-04-16 2005-08-23 Siemens Diesel Systems Technology Multiple stage pump with multiple external control valves
DE10335603A1 (en) * 2003-08-04 2005-03-03 Robert Bosch Gmbh High-pressure pump for a fuel injection device of an internal combustion engine
JP2006170169A (en) * 2004-12-20 2006-06-29 Denso Corp Fuel supply pump
ATE491885T1 (en) * 2004-12-23 2011-01-15 Fiat Ricerche FUEL INJECTION DEVICE WITH VARIABLE FLOW HIGH PRESSURE FUEL PUMP
ITMI20080288A1 (en) * 2008-02-22 2009-08-23 Bosch Gmbh Robert HIGH PRESSURE PUMP FOR HIGH PRESSURE FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE
EP2241744A1 (en) * 2009-04-15 2010-10-20 Delphi Technologies Holding S.à.r.l. Common Rail Fuel Pump and Control Method for a Common Rail Fuel Pump
DE102009003066A1 (en) * 2009-05-13 2010-11-18 Robert Bosch Gmbh Piston machine, in particular liquid piston machine
DE102012200764B3 (en) * 2012-01-19 2013-07-11 Continental Automotive Gmbh Common rail injection system for an internal combustion engine
US10012228B2 (en) * 2014-04-17 2018-07-03 Danfoss Power Solutions Gmbh & Co. Ohg Variable fluid flow hydraulic pump
ES2687955T3 (en) * 2014-09-11 2018-10-30 Hermetik Hydraulik Ab Travel device
ITUB20159428A1 (en) * 2015-12-29 2017-06-29 Bosch Gmbh Robert PUMPING GROUP FOR FUEL SUPPLEMENTATION, PREFERABLY GASOIL, TO AN INTERNAL COMBUSTION ENGINE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320620A1 (en) * 1993-06-22 1995-01-05 Bosch Gmbh Robert Fuel injection device for internal combustion engines
EP0840009A2 (en) * 1996-10-29 1998-05-06 Robert Bosch Gmbh High pressure pump
WO2000047888A1 (en) * 1999-02-09 2000-08-17 Hitachi, Ltd. High-pressure fuel feed pump of internal combustion engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH258404A (en) * 1945-11-22 1948-11-30 Wirz Ernst Hydraulic control device on multiple piston pumps.
DE3028396A1 (en) * 1980-07-26 1982-02-11 Wepuko-Hydraulik GmbH & Co Pumpen- und Kompressorenfabrik, 7418 Metzingen High pressure reciprocating pump - has inlet valves held open to give simple throughput control
DE4401073A1 (en) * 1994-01-15 1995-07-20 Rexroth Mannesmann Gmbh Motor vehicle fuel pump
DE19612412B4 (en) * 1996-03-28 2006-07-06 Siemens Ag Control for a pressurized fluid supply system, in particular for the high pressure in a fuel injection system
DE19622776B4 (en) * 1996-06-07 2010-11-25 Robert Bosch Gmbh Method and device for controlling an internal combustion engine
DE19646581A1 (en) * 1996-11-12 1998-05-14 Bosch Gmbh Robert Fuel injection system
DE10010945B4 (en) * 2000-03-06 2004-07-22 Robert Bosch Gmbh Pump for supplying a fuel injection system and a hydraulic valve control for internal combustion engines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320620A1 (en) * 1993-06-22 1995-01-05 Bosch Gmbh Robert Fuel injection device for internal combustion engines
EP0840009A2 (en) * 1996-10-29 1998-05-06 Robert Bosch Gmbh High pressure pump
WO2000047888A1 (en) * 1999-02-09 2000-08-17 Hitachi, Ltd. High-pressure fuel feed pump of internal combustion engine

Also Published As

Publication number Publication date
DE10153189A1 (en) 2003-05-15
JP2003148290A (en) 2003-05-21
EP1306553A2 (en) 2003-05-02

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