EP1281861A3 - Fuel injection device for internal combustion engines - Google Patents

Fuel injection device for internal combustion engines Download PDF

Info

Publication number
EP1281861A3
EP1281861A3 EP02016714A EP02016714A EP1281861A3 EP 1281861 A3 EP1281861 A3 EP 1281861A3 EP 02016714 A EP02016714 A EP 02016714A EP 02016714 A EP02016714 A EP 02016714A EP 1281861 A3 EP1281861 A3 EP 1281861A3
Authority
EP
European Patent Office
Prior art keywords
fuel injection
injection device
internal combustion
combustion engines
piston
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
EP02016714A
Other languages
German (de)
French (fr)
Other versions
EP1281861A2 (en
EP1281861B1 (en
Inventor
Ngoc-Tam Vu
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.)
LOrange GmbH
Original Assignee
LOrange 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 LOrange GmbH filed Critical LOrange GmbH
Publication of EP1281861A2 publication Critical patent/EP1281861A2/en
Publication of EP1281861A3 publication Critical patent/EP1281861A3/en
Application granted granted Critical
Publication of EP1281861B1 publication Critical patent/EP1281861B1/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
    • 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
    • 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
    • F02M59/462—Delivery valves

Abstract

The fuel injection device (1) has a valve connecting the working space of a high pressure pump to a low pressure source during the suction stroke and to a high pressure reservoir during the compression stroke. The valve has 2 coaxial valve elements provided by a blocking piston (15) and a non-return piston (14), the blocking piston acting axially on the non-return piston during the compression stroke.
EP02016714A 2001-07-30 2002-07-26 Fuel injection device for internal combustion engines Expired - Lifetime EP1281861B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10136926 2001-07-30
DE10136926A DE10136926C1 (en) 2001-07-30 2001-07-30 Fuel injection device, for internal combustion engine, has working space of high pressure pump coupled to low pressure source and high pressure reservoir during suction and compression strokes

Publications (3)

Publication Number Publication Date
EP1281861A2 EP1281861A2 (en) 2003-02-05
EP1281861A3 true EP1281861A3 (en) 2003-04-23
EP1281861B1 EP1281861B1 (en) 2004-05-19

Family

ID=7693480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02016714A Expired - Lifetime EP1281861B1 (en) 2001-07-30 2002-07-26 Fuel injection device for internal combustion engines

Country Status (3)

Country Link
EP (1) EP1281861B1 (en)
AT (1) ATE267340T1 (en)
DE (2) DE10136926C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT504433B8 (en) * 2006-11-07 2008-09-15 Bosch Gmbh Robert PUMP ELEMENT FOR A COMMON RAIL HIGH PRESSURE PUMP
EP2287462B1 (en) * 2009-07-08 2012-04-18 Delphi Technologies Holding S.à.r.l. A pump unit
ITTO20090715A1 (en) * 2009-09-21 2011-03-22 Torino Politecnico PUMP UNIT PERFECTED FOR AN INJECTION DEVICE OF AN INTERNAL COMBUSTION ENGINE
DE102011075516A1 (en) * 2011-05-09 2012-11-15 Robert Bosch Gmbh Valve arrangement for a high-pressure fuel pump and high-pressure fuel pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5064354A (en) * 1990-06-04 1991-11-12 Robertson Walter W High pressure fluid pump
US5605449A (en) * 1996-01-25 1997-02-25 Wendy Buskop Suction and discharge valve arrangement for a high pressure piston pump
WO1997017538A1 (en) * 1995-11-08 1997-05-15 Robert Bosch Gmbh Fuel injection device for internal combustion engines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0990792A3 (en) * 1998-09-30 2003-05-21 CRT Common Rail Technologies AG Common-Rail fuel injection system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5064354A (en) * 1990-06-04 1991-11-12 Robertson Walter W High pressure fluid pump
WO1997017538A1 (en) * 1995-11-08 1997-05-15 Robert Bosch Gmbh Fuel injection device for internal combustion engines
US5605449A (en) * 1996-01-25 1997-02-25 Wendy Buskop Suction and discharge valve arrangement for a high pressure piston pump

Also Published As

Publication number Publication date
ATE267340T1 (en) 2004-06-15
DE10136926C1 (en) 2003-01-16
DE50200457D1 (en) 2004-06-24
EP1281861A2 (en) 2003-02-05
EP1281861B1 (en) 2004-05-19

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