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WO2012062508A3 - Fuel injection system of an internal combustion engine - Google Patents

Fuel injection system of an internal combustion engine Download PDF

Info

Publication number
WO2012062508A3
WO2012062508A3 PCT/EP2011/066410 EP2011066410W WO2012062508A3 WO 2012062508 A3 WO2012062508 A3 WO 2012062508A3 EP 2011066410 W EP2011066410 W EP 2011066410W WO 2012062508 A3 WO2012062508 A3 WO 2012062508A3
Authority
WO
WIPO (PCT)
Prior art keywords
combustion engine
internal combustion
injection system
fuel injection
high pressure
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.)
Ceased
Application number
PCT/EP2011/066410
Other languages
German (de)
French (fr)
Other versions
WO2012062508A2 (en
Inventor
Sascha Ambrock
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
Priority to JP2013534230A priority Critical patent/JP5719444B2/en
Priority to KR1020137011844A priority patent/KR20130139985A/en
Priority to CN201180053426.8A priority patent/CN103201496B/en
Priority to EP11760478.5A priority patent/EP2638276B1/en
Priority to RU2013126194/06A priority patent/RU2013126194A/en
Publication of WO2012062508A2 publication Critical patent/WO2012062508A2/en
Publication of WO2012062508A3 publication Critical patent/WO2012062508A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • 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
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/54—Arrangement of fuel pressure regulators
    • 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
    • F02M2200/27—Fuel-injection apparatus with filters
    • 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
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • 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
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means

Landscapes

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

Abstract

The invention relates to a fuel injection system of an internal combustion engine, comprising a high pressure fuel pump (3), wherein a metering device (7) is connected upstream of the high pressure region (5) of said high pressure fuel pump and said metering device (7) feeds a fuel quantity conveyed from a supply tank (2) in metered quantities to the high-pressure region (5) via a feed line (8). A zero delivery line (18) branches from the feed line (8) and in the region of a constriction (20) of a Venturi throttle (19) opens into a return line (14), wherein furthermore the Venturi throttle (19) comprises a respective filter (22, 23) in an intake (21) and/or in a junction portion leading into the constriction (20).
PCT/EP2011/066410 2010-11-08 2011-09-21 Fuel injection system of an internal combustion engine Ceased WO2012062508A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2013534230A JP5719444B2 (en) 2010-11-08 2011-09-21 Fuel injection system for internal combustion engine
KR1020137011844A KR20130139985A (en) 2010-11-08 2011-09-21 Fuel injection system of an internal combustion engine
CN201180053426.8A CN103201496B (en) 2010-11-08 2011-09-21 The fuel injection system of internal combustion engine
EP11760478.5A EP2638276B1 (en) 2010-11-08 2011-09-21 Fuel injection system of an internal combustion engine
RU2013126194/06A RU2013126194A (en) 2010-11-08 2011-09-21 FUEL INJECTION SYSTEM IN THE INTERNAL COMBUSTION ENGINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010043531.7 2010-11-08
DE102010043531A DE102010043531A1 (en) 2010-11-08 2010-11-08 Fuel injection system of an internal combustion engine

Publications (2)

Publication Number Publication Date
WO2012062508A2 WO2012062508A2 (en) 2012-05-18
WO2012062508A3 true WO2012062508A3 (en) 2012-07-12

Family

ID=44674797

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/066410 Ceased WO2012062508A2 (en) 2010-11-08 2011-09-21 Fuel injection system of an internal combustion engine

Country Status (7)

Country Link
EP (1) EP2638276B1 (en)
JP (1) JP5719444B2 (en)
KR (1) KR20130139985A (en)
CN (1) CN103201496B (en)
DE (1) DE102010043531A1 (en)
RU (1) RU2013126194A (en)
WO (1) WO2012062508A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013208707A1 (en) * 2013-05-13 2014-11-13 Robert Bosch Gmbh Overflow valve for a high pressure pump in a fuel injection system
DE102013226649A1 (en) * 2013-12-19 2015-06-25 Robert Bosch Gmbh Fuel supply device of a fuel injection system of an internal combustion engine and overflow valve to it
DE102015212121A1 (en) * 2015-06-30 2017-01-05 Robert Bosch Gmbh Method for determining operating parameters of a fuel pump
US11268455B2 (en) 2016-09-09 2022-03-08 Walbro Llc Throttle body with fluid flow control
CN106640449B (en) * 2016-12-27 2018-05-29 清华大学 For the self-priming electronic control low-pressure fuel gauge of internal combustion engine
CN108150324B (en) * 2017-12-27 2020-01-03 潍柴动力股份有限公司 High-pressure oil pump for engine fuel system and engine fuel system
CN111878272B (en) * 2020-06-30 2021-10-29 潍柴动力股份有限公司 Exhaust device and exhaust method of high pressure oil pump
CN114017223B (en) * 2021-11-03 2023-03-24 南岳电控（衡阳）工业技术股份有限公司 Oil discharge structure and oil supply system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10154133C1 (en) * 2001-11-03 2003-02-13 Bosch Gmbh Robert Common-rail fuel system for IC engine has fuel fed from between fuel metering device and high pressure fuel pump fed to low pressure region with pressure reduction device
WO2011000599A1 (en) * 2009-06-30 2011-01-06 Robert Bosch Gmbh Fuel system for an internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11257188A (en) * 1998-03-10 1999-09-21 Hitachi Ltd Fuel return valve
IT1310754B1 (en) * 1999-11-30 2002-02-22 Elasis Sistema Ricerca Fiat VALVE SYSTEM FOR INLET PRESSURE CONTROL OF A LIQUID IN A HIGH PRESSURE PUMP, AND RELATED VALVE
JP2007239684A (en) * 2006-03-10 2007-09-20 Bosch Corp Fuel supply pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10154133C1 (en) * 2001-11-03 2003-02-13 Bosch Gmbh Robert Common-rail fuel system for IC engine has fuel fed from between fuel metering device and high pressure fuel pump fed to low pressure region with pressure reduction device
WO2011000599A1 (en) * 2009-06-30 2011-01-06 Robert Bosch Gmbh Fuel system for an internal combustion engine

Also Published As

Publication number Publication date
EP2638276B1 (en) 2016-08-17
WO2012062508A2 (en) 2012-05-18
JP5719444B2 (en) 2015-05-20
CN103201496B (en) 2016-07-13
DE102010043531A1 (en) 2012-05-10
JP2013545914A (en) 2013-12-26
KR20130139985A (en) 2013-12-23
EP2638276A2 (en) 2013-09-18
CN103201496A (en) 2013-07-10
RU2013126194A (en) 2014-12-20

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