EP0141044A3 - Fuel injection device with main and pre-injection for internal-combustion engines - Google Patents

Fuel injection device with main and pre-injection for internal-combustion engines Download PDF

Info

Publication number
EP0141044A3
EP0141044A3 EP84108303A EP84108303A EP0141044A3 EP 0141044 A3 EP0141044 A3 EP 0141044A3 EP 84108303 A EP84108303 A EP 84108303A EP 84108303 A EP84108303 A EP 84108303A EP 0141044 A3 EP0141044 A3 EP 0141044A3
Authority
EP
European Patent Office
Prior art keywords
injection
main
pressure
piston
pilot
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
EP84108303A
Other languages
German (de)
Other versions
EP0141044A2 (en
EP0141044B1 (en
Inventor
Erhard Sitter
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 AT84108303T priority Critical patent/ATE44076T1/en
Publication of EP0141044A2 publication Critical patent/EP0141044A2/en
Publication of EP0141044A3 publication Critical patent/EP0141044A3/en
Application granted granted Critical
Publication of EP0141044B1 publication Critical patent/EP0141044B1/en
Expired 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

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 fuel injection apparatus with pilot injection and main injection in Diesel engines is proposed. A high-pressure injection pump delivers a main injection quantity to a main injection nozzle, while a hydraulic pilot injection auxiliary pump driven by the supply pressure of the high-pressure injection pump positively displaces a pilot injection quantity, via a piston, and delivers it to a pilot injection nozzle which is either separate or combined with the main injection nozzle. In the main injection area, a storage piston is separately provided, which without being mechanically connected to the pilot injection piston and without a pressure division is initially acted upon solely by the supply pressure of the high-pressure injection pump and only in the course of the pilot injection piston stroke is a line leading on to the storage piston opened up, at least indirectly, for the pumped fuel.
EP84108303A 1983-08-26 1984-07-14 Fuel injection device with main and pre-injection for internal-combustion engines Expired EP0141044B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108303T ATE44076T1 (en) 1983-08-26 1984-07-14 FUEL INJECTION DEVICE WITH PRE AND MAIN INJECTION IN COMBUSTION ENGINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833330774 DE3330774A1 (en) 1983-08-26 1983-08-26 FUEL INJECTION DEVICE WITH PRIMARY AND MAIN INJECTION IN INTERNAL COMBUSTION ENGINES
DE3330774 1983-08-26

Publications (3)

Publication Number Publication Date
EP0141044A2 EP0141044A2 (en) 1985-05-15
EP0141044A3 true EP0141044A3 (en) 1987-04-29
EP0141044B1 EP0141044B1 (en) 1989-06-14

Family

ID=6207478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108303A Expired EP0141044B1 (en) 1983-08-26 1984-07-14 Fuel injection device with main and pre-injection for internal-combustion engines

Country Status (5)

Country Link
US (1) US4520774A (en)
EP (1) EP0141044B1 (en)
JP (1) JPS6073041A (en)
AT (1) ATE44076T1 (en)
DE (2) DE3330774A1 (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61171874A (en) * 1985-01-28 1986-08-02 Nippon Denso Co Ltd Dual fuel injecting device
DE3516537A1 (en) * 1985-05-08 1986-11-13 M A N Nutzfahrzeuge GmbH, 8000 München FUEL INJECTION DEVICE FOR SELF-IGNITIONING INTERNAL COMBUSTION ENGINES
US4693227A (en) * 1985-05-21 1987-09-15 Toyota Jidosha Kabushiki Kaisha Multi-fuel injection system for an internal combustion engine
US4681073A (en) * 1986-02-05 1987-07-21 Deere & Company Fuel injection control valve
FR2595761B1 (en) * 1986-03-14 1988-05-13 Semt INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE, ALLOWING THE INJECTION OF TWO FUELS
US4796577A (en) * 1986-06-16 1989-01-10 Baranescu George S Injection system with pilot injection
DE3629751C2 (en) * 1986-09-01 1998-07-02 Bosch Gmbh Robert Pre-injection device for internal combustion engines
DE3634962A1 (en) * 1986-10-14 1988-04-21 Bosch Gmbh Robert FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY FOR DIESEL ENGINES
CH672661A5 (en) * 1987-03-17 1989-12-15 Sulzer Ag
CH672660A5 (en) * 1987-03-17 1989-12-15 Sulzer Ag
DE3907232A1 (en) * 1989-03-07 1990-09-13 Daimler Benz Ag DEVICE FOR CONTROLLING A PRIME AND MAIN INJECTION AMOUNT WITH INTERMEDIATE INJECTION PAUSE FOR AN INTERNAL COMBUSTION ENGINE, IN PART. WITH AIR COMPRESSION AND AUTO IGNITION
DE3907766A1 (en) * 1989-03-10 1990-09-13 Bosch Gmbh Robert STORAGE FUEL INJECTION DEVICE
EP0469142B1 (en) * 1990-02-21 1995-04-05 Robert Bosch Ag Fuel injection device for fuel-injected internal combustion engines
DE4018535C2 (en) * 1990-06-09 1995-03-09 Orange Gmbh Fuel injector
DE4021453A1 (en) * 1990-07-05 1991-09-12 Bosch Gmbh Robert Fuel injection nozzle - provides small primary injection followed by the main fuel injection
DE4105168A1 (en) * 1990-12-10 1992-06-11 Man Nutzfahrzeuge Ag INJECTION SYSTEM FOR AIR COMPRESSING ENGINES
US5119780A (en) * 1991-06-11 1992-06-09 Southwest Research Institute Staged direct injection diesel engine
JPH0532766U (en) * 1991-10-11 1993-04-30 三菱重工業株式会社 Combustion device for a diesel engine
CZ69294A3 (en) * 1991-10-21 1994-07-13 Orbital Eng Pty Process and apparatus for feeding liquids
JPH06173811A (en) * 1992-10-08 1994-06-21 Nippon Soken Inc Fuel injection device
DE4414906C1 (en) * 1994-04-28 1995-05-04 Daimler Benz Ag Fuel injection method for a fuel-injected compression-ignition engine with secondary and primary injection
GB9507115D0 (en) * 1995-04-06 1995-05-31 Lucas Ind Plc Fuel pumping apparatus
US6715464B2 (en) * 1995-04-28 2004-04-06 Bombardier Motor Corporation Of America Fuel injection device for internal combustion engines
US8215292B2 (en) 1996-07-17 2012-07-10 Bryant Clyde C Internal combustion engine and working cycle
US7281527B1 (en) * 1996-07-17 2007-10-16 Bryant Clyde C Internal combustion engine and working cycle
US6951211B2 (en) * 1996-07-17 2005-10-04 Bryant Clyde C Cold air super-charged internal combustion engine, working cycle and method
DE19651175C2 (en) * 1996-12-10 1999-12-30 Otto C Pulch Counter-piston two-stroke internal combustion engine with direct fuel injection into the cylinder and adjustable rotation and turbulence of the charge air
US5782222A (en) * 1997-03-19 1998-07-21 Siemens Automotive Corporation Apparatus and method for supplying an alternate fuel substantially simultaneously to fuel injectors
DE19815266B4 (en) * 1997-04-16 2008-09-18 Volkswagen Ag Method for injecting fuel into an internal combustion engine
DE19716221B4 (en) * 1997-04-18 2007-06-21 Robert Bosch Gmbh Fuel injection device with pre-injection and main injection in internal combustion engines, in particular for hard to ignite fuels
DE19746492A1 (en) * 1997-10-22 1999-04-29 Bosch Gmbh Robert Dual fluid injection system for IC engine
DE19746490A1 (en) * 1997-10-22 1999-04-29 Bosch Gmbh Robert Dual fluid injection system for IC engine
DE10022421A1 (en) * 2000-05-09 2001-11-15 Bosch Gmbh Robert Pre-injection valve for controlling the fuel flow of a fuel injector
JP3935829B2 (en) * 2002-11-20 2007-06-27 三菱重工業株式会社 Internal combustion engine leak fuel recovery device
US20060082682A1 (en) * 2004-10-15 2006-04-20 Hoodman Corporation Camera LCD screen viewing device
JP4595996B2 (en) * 2007-11-16 2010-12-08 トヨタ自動車株式会社 High pressure fuel supply device for internal combustion engine
JP5873059B2 (en) * 2013-09-30 2016-03-01 株式会社豊田中央研究所 Compression ignition internal combustion engine
GB2560513A (en) 2017-03-13 2018-09-19 Ap Moeller Maersk As Fuel injection system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE596917C (en) * 1932-10-08 1934-11-15 Walter Herrmann Dipl Ing Injection device for internal combustion engines
US2537087A (en) * 1942-03-07 1951-01-09 Atlas Diesel Ab Fuel injection apparatus
DE1252001B (en) * 1967-10-12 Robert Bosch Gmbh, Stuttgart Fuel injection valve for pre-injection and main injection
DE1284687B (en) * 1967-10-18 1968-12-05 Bosch Gmbh Robert Fuel injection valve for pilot and main injection
DE2834633A1 (en) * 1978-08-08 1980-03-06 Bosch Gmbh Robert PRE-INJECTION CONTROL DEVICE
DE3011376A1 (en) * 1980-03-25 1981-10-01 Motoren-Werke Mannheim AG, vorm. Benz Abt. stat. Motorenbau, 6800 Mannheim Injection system for dual fuel diesel engine - has main injector with adjustable pressure divider for pilot injection (BR 11.8.81)
DD151205A5 (en) * 1979-05-28 1981-10-08 Semt FUEL INJECTION PUMP FOR A INTERNAL COMBUSTION ENGINE

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2173813A (en) * 1936-10-20 1939-09-19 Bischof Bernhard Fuel injection apparatus
AT276866B (en) * 1965-12-31 1969-12-10 Bosch Gmbh Robert Fuel injection valve for pilot and main injection
FR1515388A (en) * 1966-03-30 1968-03-01 Bosch Gmbh Robert Fuel injection valve for pre-injection and main injection
DE1808650A1 (en) * 1968-11-13 1970-06-18 Bosch Gmbh Robert Fuel injector
US3752137A (en) * 1972-04-25 1973-08-14 Ambac Ind Apparatus for controlling rate of fuel injection
DE2911447A1 (en) * 1979-03-23 1980-09-25 Daimler Benz Ag CONTROLLING THE FUEL FLOW CONTROL UNIT FOR INJECTION DEVICES IN PARTICULAR AIR COMPRESSING ENGINES
DE2943896A1 (en) * 1979-10-31 1981-05-14 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
JPS5788265A (en) * 1980-11-25 1982-06-02 Nippon Denso Co Ltd Fuel injection device for internal combustion engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252001B (en) * 1967-10-12 Robert Bosch Gmbh, Stuttgart Fuel injection valve for pre-injection and main injection
DE596917C (en) * 1932-10-08 1934-11-15 Walter Herrmann Dipl Ing Injection device for internal combustion engines
US2537087A (en) * 1942-03-07 1951-01-09 Atlas Diesel Ab Fuel injection apparatus
DE1284687B (en) * 1967-10-18 1968-12-05 Bosch Gmbh Robert Fuel injection valve for pilot and main injection
DE2834633A1 (en) * 1978-08-08 1980-03-06 Bosch Gmbh Robert PRE-INJECTION CONTROL DEVICE
DD151205A5 (en) * 1979-05-28 1981-10-08 Semt FUEL INJECTION PUMP FOR A INTERNAL COMBUSTION ENGINE
DE3011376A1 (en) * 1980-03-25 1981-10-01 Motoren-Werke Mannheim AG, vorm. Benz Abt. stat. Motorenbau, 6800 Mannheim Injection system for dual fuel diesel engine - has main injector with adjustable pressure divider for pilot injection (BR 11.8.81)

Also Published As

Publication number Publication date
DE3478707D1 (en) 1989-07-20
DE3330774A1 (en) 1985-03-14
JPH059634B2 (en) 1993-02-05
EP0141044A2 (en) 1985-05-15
ATE44076T1 (en) 1989-06-15
JPS6073041A (en) 1985-04-25
EP0141044B1 (en) 1989-06-14
US4520774A (en) 1985-06-04

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