EP0915252A3 - Common rail fuel injection system - Google Patents

Common rail fuel injection system Download PDF

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Publication number
EP0915252A3
EP0915252A3 EP98117887A EP98117887A EP0915252A3 EP 0915252 A3 EP0915252 A3 EP 0915252A3 EP 98117887 A EP98117887 A EP 98117887A EP 98117887 A EP98117887 A EP 98117887A EP 0915252 A3 EP0915252 A3 EP 0915252A3
Authority
EP
European Patent Office
Prior art keywords
openings
rail
injection system
injector
common rail
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Withdrawn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
EP98117887A
Other languages
German (de)
French (fr)
Other versions
EP0915252A2 (en
Inventor
Fritz Spinnler
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.)
Schweizerische Industrie Gesellschaft
Original Assignee
Schweizerische Industrie Gesellschaft
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 Schweizerische Industrie Gesellschaft filed Critical Schweizerische Industrie Gesellschaft
Publication of EP0915252A2 publication Critical patent/EP0915252A2/en
Publication of EP0915252A3 publication Critical patent/EP0915252A3/en
Withdrawn legal-status Critical Current

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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
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • 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
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • 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
    • 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

Abstract

Das Common-Rail Einspritzsystem (8) für Verbrennungsmotoren (10) arbeitet mit einem Rail (12), das parallel zu einem Zylinderkopfgehäuse (14) angeordnet ist und einen Druckraum (20) sowie Öffnungen (22) für die Aufnahme von Injektoren (24) aufweist. Die Injektoren (24) werden so in die Öffnungen (22) des Rails (12) eingepasst, dass sie durch die Öffnungen (22) hindurch in die in der Verlängerung der Öffnungen (22) liegenden Injektorenöffnungen (44) des Zylinderkopfgehäuses (14) eingesetzt werden können. Im Bereich des Druckraumes (20) des Rails (12) weist jeder Injektor (24) eine Einlassöffnung (38) auf, durch die das Druckmedium direkt vom Druckraum (20) in den Injektor (24) strömen kann. Das Rail (12) kann über weitere Bauteile oder direkt mit einem Ausgang der Hochdruckpumpe 16 verbunden sein.

Figure 00000001
The common rail injection system (8) for internal combustion engines (10) works with a rail (12) which is arranged parallel to a cylinder head housing (14) and has a pressure chamber (20) and openings (22) for receiving injectors (24) having. The injectors (24) are fitted into the openings (22) of the rail (12) in such a way that they are inserted through the openings (22) into the injector openings (44) of the cylinder head housing (14) located in the extension of the openings (22) can be. In the area of the pressure chamber (20) of the rail (12), each injector (24) has an inlet opening (38) through which the pressure medium can flow directly from the pressure chamber (20) into the injector (24). The rail (12) can be connected via further components or directly to an outlet of the high pressure pump 16.
Figure 00000001
EP98117887A 1997-11-05 1998-09-21 Common rail fuel injection system Withdrawn EP0915252A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2557/97 1997-11-05
CH255797 1997-11-05
CH255797 1997-11-05

Publications (2)

Publication Number Publication Date
EP0915252A2 EP0915252A2 (en) 1999-05-12
EP0915252A3 true EP0915252A3 (en) 2000-03-15

Family

ID=4236484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117887A Withdrawn EP0915252A3 (en) 1997-11-05 1998-09-21 Common rail fuel injection system

Country Status (3)

Country Link
EP (1) EP0915252A3 (en)
JP (1) JPH11200986A (en)
CA (1) CA2251148A1 (en)

Families Citing this family (16)

* 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
DE19946611A1 (en) * 1999-09-29 2001-04-12 Bosch Gmbh Robert High pressure fuel accumulator
DE50013384D1 (en) 1999-11-19 2006-10-12 Crt Common Rail Tech Ag High-pressure injection system with common rail
DE10147534A1 (en) * 2001-09-26 2003-04-30 Deutz Ag A fuel injection system
DE10309311B4 (en) 2003-03-04 2005-01-05 Siemens Ag Fuel high pressure storage
DE102008008259A1 (en) * 2008-02-08 2009-08-13 Deutz Ag Internal combustion engine with a common rail injection system
DE102010001119A1 (en) * 2010-01-22 2011-07-28 Robert Bosch GmbH, 70469 high pressure pump
DE102010051883B4 (en) * 2010-11-22 2016-06-02 Benteler Automobiltechnik Gmbh Fuel distributor
US9200563B2 (en) 2013-03-12 2015-12-01 Pratt & Whitney Canada Corp. Internal combustion engine with common rail pilot and main injection
US9797297B2 (en) 2015-02-20 2017-10-24 Pratt & Whitney Canada Corp. Compound engine assembly with common inlet
US9896998B2 (en) 2015-02-20 2018-02-20 Pratt & Whitney Canada Corp. Compound engine assembly with modulated flow
US9879591B2 (en) 2015-02-20 2018-01-30 Pratt & Whitney Canada Corp. Engine intake assembly with selector valve
US9932892B2 (en) 2015-02-20 2018-04-03 Pratt & Whitney Canada Corp. Compound engine assembly with coaxial compressor and offset turbine section
DE102015205170A1 (en) 2015-03-23 2016-09-29 Bayerische Motoren Werke Aktiengesellschaft Fuel injector
DE102015205169A1 (en) 2015-03-23 2016-09-29 Bayerische Motoren Werke Aktiengesellschaft Fuel injector
DE102015209646A1 (en) 2015-05-27 2016-12-01 Bayerische Motoren Werke Aktiengesellschaft Fuel injector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701295A1 (en) * 1993-02-05 1994-08-12 Sindra Sa Fuel injection line and one of the methods of manufacturing it
US5538403A (en) * 1994-05-06 1996-07-23 Cummins Engine Company, Inc. High pressure pump for fuel injection systems
JPH0960562A (en) * 1995-08-24 1997-03-04 Nissan Motor Co Ltd Direct injection-type internal combustion engine
JPH0988761A (en) * 1995-09-26 1997-03-31 Isuzu Motors Ltd Fuel injection device of internal combustion engine
US5626121A (en) * 1994-12-02 1997-05-06 Zexel Corporation Fuel pump for high-pressure fuel injection system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH127597A (en) 1927-05-25 1928-09-01 Sulzer Ag Standing piston machine, in particular internal combustion engine.
JP3077738B2 (en) 1994-04-28 2000-08-14 株式会社デンソー High pressure supply pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701295A1 (en) * 1993-02-05 1994-08-12 Sindra Sa Fuel injection line and one of the methods of manufacturing it
US5538403A (en) * 1994-05-06 1996-07-23 Cummins Engine Company, Inc. High pressure pump for fuel injection systems
US5626121A (en) * 1994-12-02 1997-05-06 Zexel Corporation Fuel pump for high-pressure fuel injection system
JPH0960562A (en) * 1995-08-24 1997-03-04 Nissan Motor Co Ltd Direct injection-type internal combustion engine
JPH0988761A (en) * 1995-09-26 1997-03-31 Isuzu Motors Ltd Fuel injection device of internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 097, no. 007 31 July 1997 (1997-07-31) *

Also Published As

Publication number Publication date
JPH11200986A (en) 1999-07-27
CA2251148A1 (en) 1999-05-05
EP0915252A2 (en) 1999-05-12

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