ATE535707T1 - HIGH PRESSURE FUEL DELIVERY DEVICE - Google Patents

HIGH PRESSURE FUEL DELIVERY DEVICE

Info

Publication number
ATE535707T1
ATE535707T1 AT07726366T AT07726366T ATE535707T1 AT E535707 T1 ATE535707 T1 AT E535707T1 AT 07726366 T AT07726366 T AT 07726366T AT 07726366 T AT07726366 T AT 07726366T AT E535707 T1 ATE535707 T1 AT E535707T1
Authority
AT
Austria
Prior art keywords
pressure
flow path
delivery device
fuel delivery
pressure fuel
Prior art date
Application number
AT07726366T
Other languages
German (de)
Inventor
Sascha Ambrock
Andreas Dutt
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of ATE535707T1 publication Critical patent/ATE535707T1/en

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
    • 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
    • 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
    • F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
    • 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
    • F02M63/0275—Arrangement of common rails
    • F02M63/028—Returnless common rail system
    • 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

Landscapes

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

Abstract

A high-pressure fuel delivery device (18) for an internal combustion engine comprises a high-pressure pump (36) and a low-pressure flow path (72). Said low-pressure flow path (72) leads from a fuel inlet (28) of the high-pressure fuel delivery device (18) to a holding space (40) for a driveshaft (44) of the high-pressure pump (36) and onward to at least one inlet valve (56) of the high-pressure pump (36). Leakage and/or lubricating fuel is recirculated via a recirculation flow path (62). It is proposed that the recirculation flow path (62) opens out (66) into the low-pressure flow path (72).
AT07726366T 2006-04-21 2007-02-14 HIGH PRESSURE FUEL DELIVERY DEVICE ATE535707T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006018702A DE102006018702A1 (en) 2006-04-21 2006-04-21 Fuel high-pressure conveying device
PCT/EP2007/051410 WO2007122023A1 (en) 2006-04-21 2007-02-14 High-pressure fuel delivery device

Publications (1)

Publication Number Publication Date
ATE535707T1 true ATE535707T1 (en) 2011-12-15

Family

ID=37965025

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07726366T ATE535707T1 (en) 2006-04-21 2007-02-14 HIGH PRESSURE FUEL DELIVERY DEVICE

Country Status (6)

Country Link
EP (1) EP2013471B1 (en)
CN (1) CN101427020A (en)
AT (1) ATE535707T1 (en)
BR (1) BRPI0706557A2 (en)
DE (1) DE102006018702A1 (en)
WO (1) WO2007122023A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017222A1 (en) * 2008-04-04 2009-10-08 Continental Automotive Gmbh Pump arrangement for conveying a fluid
DE102008001704A1 (en) 2008-05-09 2009-11-12 Robert Bosch Gmbh Fuel conveying system for internal-combustion engine, has hydraulic control line in connection with return pipe over working throttle for hydraulically actuating valve piston, and pressure-relief valve switched parallel to working throttle
DE102010026159A1 (en) 2010-07-06 2012-01-12 Audi Ag Fuel system for an internal combustion engine
DE102010042587A1 (en) * 2010-10-18 2012-04-19 Robert Bosch Gmbh Fuel pump for a fuel injection system of an internal combustion engine
DE102011003089A1 (en) 2011-01-25 2012-07-26 Robert Bosch Gmbh Overflow valve of a force injection system
DE102011075474A1 (en) 2011-05-09 2012-11-15 Robert Bosch Gmbh High pressure pump for fuel injection system, has pump housing, in which pump element is received, where pump element is arranged radially around drive shaft
DE102011089623A1 (en) 2011-12-22 2013-06-27 Robert Bosch Gmbh Fuel conveying device for use in common-rail injection system for combustion engine, has return-flow pipe for returning lubricant-, coolant- and/or leakage amount into container or inlet line, and valves arranged in inlet line and/or pipe
DE102012203724A1 (en) 2012-03-09 2013-09-12 Robert Bosch Gmbh Fuel conveying device for common-rail injection system in combustion engine, has flow path arranged in valve for hydraulic connection of shaft bearing of high pressure pump with return-flow pipe, where throttle is integrated into flow path
DE102012210177A1 (en) 2012-06-18 2013-12-19 Robert Bosch Gmbh Fuel feed device for, e.g. common-rail fuel injection system, has a pre-feed pump functioning as a regulated electrical fuel pump, and a machine room connected to return line through shaft bearings connected in parallel to a throttle
DE102012212062A1 (en) 2012-07-11 2014-01-16 Robert Bosch Gmbh Low pressure circuit for a fuel injection system, fuel injection system and method of operating a fuel injection system
DE102015217863A1 (en) * 2015-09-17 2017-03-23 Continental Automotive Gmbh Fuel injection system
EP3601777B1 (en) * 2017-03-29 2021-10-27 Wärtsilä Finland Oy A high pressure fuel pump assembly for an internal combustion piston engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714488C1 (en) 1997-04-08 1998-09-03 Siemens Ag Fuel injection system for IC engine, particularly diesel engine
DE19941689A1 (en) * 1999-09-01 2001-03-15 Siemens Ag Fuel injection device for an automobile engine
DE10057244A1 (en) 2000-11-18 2002-06-06 Bosch Gmbh Robert Fuel injection system for internal combustion engines with improved starting behavior
DE10205187A1 (en) * 2002-02-08 2003-08-21 Bosch Gmbh Robert Fuel injection device for an internal combustion engine
JP3915718B2 (en) * 2003-03-11 2007-05-16 株式会社デンソー Fuel supply pump

Also Published As

Publication number Publication date
BRPI0706557A2 (en) 2011-03-29
CN101427020A (en) 2009-05-06
EP2013471B1 (en) 2011-11-30
WO2007122023A1 (en) 2007-11-01
EP2013471A1 (en) 2009-01-14
DE102006018702A1 (en) 2007-10-25

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