EP1192352A1 - Systeme d'injection de carburant pour moteur thermique - Google Patents
Systeme d'injection de carburant pour moteur thermiqueInfo
- Publication number
- EP1192352A1 EP1192352A1 EP00953005A EP00953005A EP1192352A1 EP 1192352 A1 EP1192352 A1 EP 1192352A1 EP 00953005 A EP00953005 A EP 00953005A EP 00953005 A EP00953005 A EP 00953005A EP 1192352 A1 EP1192352 A1 EP 1192352A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- line
- pressure
- leakage
- return
- 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
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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M55/002—Arrangement of leakage or drain conduits in or from 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
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
-
- 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
- F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
- F02M2547/003—Valve inserts containing control chamber and valve piston
Definitions
- the invention relates to a fuel injection system for an internal combustion engine according to the preamble of claim 1.
- Fuel injection systems for internal combustion engines in particular diesel engines, which have a high-pressure pump for delivering fuel from a fuel supply, a number of fuel injectors for injecting the fuel into the combustion chamber of the internal combustion engine, and a high-pressure accumulator for connecting the high-pressure pump to the fuel injectors and a high-pressure reservoir for holding the high-pressure pump
- High pressure fuel line containing pressure required fuel to be injected are becoming increasingly widespread.
- a major advantage of fuel injection systems of this type is that the injection process with respect to the start of injection, injection duration and mass flow rate of the injected fuel per unit of time can be adapted very precisely to the respective speed and load condition of the internal combustion engine.
- the high-pressure fuel line which supplies the fuel from the high-pressure pump to the fuel injectors and maintains the fuel under high pressure, there is one
- Fuel injection systems also have a fuel return line and a leakage line for returning accumulated leakage quantities that occur at the fuel injectors or due to leaks in the sealing points.
- Providing these additional fuel lines is inherently expensive and, in particular in the case of large-volume diesel engines, significant vibration problems arise with regard to the attachment of the lines to the engine.
- the object of the present invention is to provide a fuel injection system of the required type which is improved with regard to the routing of these fuel lines.
- a fuel injection system for an internal combustion engine which has a high-pressure pump for delivering the fuel from a fuel supply, a number of fuel injectors for injecting the fuel into the combustion chamber of the internal combustion engine, and a high-pressure pump for connecting the high-pressure pump to the fuel injectors and a high-pressure reservoir for holding the fuel from the high-pressure pump contains high-pressure fuel-injected fuel-containing fuel line. Furthermore, there is a fuel return line for returning fuel that has not been injected and a leakage line. According to the invention, it is provided that the high-pressure fuel line, the fuel return line and the leakage line are combined in a common fuel line with respective flow cross sections separated by walls for each of the lines.
- a major advantage of the fuel system according to the invention is that the fastening point, sealing and connecting elements required for separate attachment of the fuel return line and the leakage line are eliminated. On the one hand, this avoids the risk of a functional failure of such elements and, on the other hand, there are no difficulties with vibration problems of such lines.
- the common fuel line is formed by three coaxially arranged, surrounding line pipes, the inner of which forms the high-pressure fuel line, and the high-pressure fuel line is surrounded by an inner and an outer jacket pipe, each of which includes a flow cross-section and the fuel return line and form the leakage line.
- the high-pressure fuel line which is very solid due to the required high-pressure strength, forms a stable support for the surrounding jacket pipes. This alleviates the vibration problems
- Jacket pipes surrounding the high-pressure fuel line are provided on their inner surface with longitudinally extending channels which form the flow cross sections of the fuel return line or leakage line. It is preferably provided that the jacket pipes surrounding the high-pressure fuel line have webs on their inner surface between the channels forming the flow cross sections of the fuel return line or leakage line, which webs rest on the outer circumference of the respective internal pipe surrounded by the relevant jacket pipe
- the inner jacket pipe surrounding the high-pressure fuel line forms the leakage line
- the outer jacket pipe surrounding the inner jacket pipe forms the fuel return line
- the fuel injectors of the injection system each have a high-pressure channel mouth for connecting the high-pressure fuel line, a leakage channel mouth for connecting the leakage line and a return channel mouth for connecting the
- a particularly preferred embodiment of the invention provides that the common high-pressure connection has on its front side a centrally arranged high-pressure channel mouth for connecting the high-pressure fuel line and on its circumference spaced apart in the axial direction the leakage channel mouth for connecting the leakage line and the return channel mouth for connecting the return line, whereby the individual mouths are each sealed by sealing elements and separated from the other mouths
- the sealing element of the high-pressure duct mouth is formed by a conical seal which interacts with a sealing cone formed at the end of the high-pressure fuel line, and that the sealing elements sealing the leakage channel mouth and the return channel mouth are formed by 0-rings, which cooperate with the inner circumferential surface of one of the leakage line and the fuel return line, which have axially spaced flow cross sections and have screwing sleeves
- FIG. 1 shows a schematic block diagram of a fuel injection system for an internal combustion engine according to an exemplary embodiment of the invention
- FIG. 2 shows a somewhat schematic longitudinal section through a fuel injector, as can be used in the exemplary embodiment of the invention described,
- Figure 3 is a cross-sectional view showing the connection of a
- High-pressure fuel line, the fuel return line and the leakage line summarizing common fuel line on a fuel injector in the exemplary embodiment described;
- Figure 4 is a schematic block diagram of a fuel injection system for a
- a fuel injection system for an internal combustion engine with a high-pressure accumulator (common rail system) charged with fuel by a high-pressure pump will first be described.
- Such a fuel inspection system as is used in particular for a large-volume diesel engine, contains a high-pressure pump 1, which fuel from a
- Fuel supply 2 to a high-pressure accumulator 3 calls.
- the high-pressure accumulator 3 is contained in a high-pressure fuel line 4 connecting the high-pressure pump 1 to fuel injectors 5 and operates in the manner of an oil-elastic one High-pressure accumulator.
- the fuel injectors 5 are provided for injecting fuel into the combustion chamber of the internal combustion engine during an injection process that is precisely defined after the start of injection, the end of injection and the course of the injection and are controlled by a control unit (not shown in the figure) as a function of the operating state of the internal combustion engine, in particular speed, load, temperature and others Parameters controlled.
- Each fuel injector 5 contains an injection nozzle 7 which is supplied with the fuel to be injected via a fuel ka na I 6 provided in the fuel injectors 5.
- the fuel injector 5 is controlled via a control valve 9, which is designed as a 3/2-way valve known per se in the prior art or as a 2/2-way servo valve for returning the fuel injector 5 which is required via the high-pressure fuel line 4 a fuel return line 11 is provided, which is connected to a corresponding connection of each of the fuel injectors 5.
- a leakage line 12 is connected to each fuel injector 5, which is used to return leakage quantities, such as. B. in the event of a line break and non-functional high-pressure sealing points.
- the fuel return line 11 and the leakage line 12 are each provided as separate lines.
- FIG. 1 shows a schematic block diagram of a fuel injection system with a high-pressure pump acted upon by a high-pressure pump (common rail system) according to an exemplary embodiment of the present invention.
- a high-pressure pump 1 is provided, which conveys fuel from a fuel supply 2 to a high-pressure accumulator 3, which works in the manner of an oil-elastic high-pressure accumulator and in a high-pressure pump 1 with fuel injectors 5 for injecting the fuel into the combustion chamber the internal combustion engine provided fuel high pressure line 4 is included.
- the fuel injectors 5 each contain an injection nozzle 7, which is supplied with the fuel to be injected in the high-pressure accumulator 3 via a fuel channel 6, the control of the injection being controlled by a control valve 9 provided in the fuel injector 5.
- a fuel return line 11 for returning fuel quantities not injected by the fuel injectors 5 and a leakage line 12 for returning leakage quantities occurring in the fuel injectors 5 are combined in a common fuel line 13 together with the high-pressure fuel line 4 containing the high-pressure accumulator 3, as shown in FIG 1 dashed circumference nien shown.
- the high-pressure fuel line 4, the fuel return line 11 and the leakage line 12 are formed by separate flow cross sections provided in the common fuel line 13. The structure of the common fuel line 13 will be described in more detail later.
- FIG. 2 shows a somewhat schematic longitudinal section through a fuel injector as used in the exemplary embodiment of the fuel injection system according to the invention described.
- the fuel injector designated as a whole by reference number 5, comprises an injector housing 10 in which a nozzle needle 18 is mounted in a longitudinally displaceable manner in a guide sleeve 25 formed in the injector housing 10.
- the tip of the nozzle needle 18 interacts with an injection nozzle 7 formed at the lower end of the injector housing 10 in the sense of opening and closing an injection cross-section.
- a high-pressure channel 19 is formed, which extends from a high-pressure connection 26 arranged laterally on the fuel injector 5 to a surrounding the nozzle needle 18
- the nozzle antechamber 22 leads via the high-pressure channel 19 to the fuel to be injected from the high-pressure fuel line 4 shown in FIG. 1 to the nozzle chamber 22 under high pressure.
- the fuel injector 5 is controlled by means of a solenoid 15 arranged at the rear end thereof, which cooperates with a control valve formed by a closing body 16 and a valve body 17.
- the control valve 16, 17 optionally supplies or relieves pressure to fuel supplied under high pressure, which is formed on the rear of a needle wedge 23 acting on the nozzle needle 18.
- a return channel 21 is provided to discharge the control quantities occurring at the control valve 16, 17.
- a leakage channel 20 serves to discharge any leakage quantities occurring in the fuel injector 5.
- the construction of the fuel injector 5 shown in FIG. 2 corresponds to a fuel injector as currently used by the applicant.
- the high-pressure connection 26, which is used to connect the high-pressure fuel line 4 shown in FIG.
- a common connection which in addition to a high-pressure channel mouth 19a for connecting the high-pressure fuel line 4, a leakage channel mouth 20a for connection The leakage line 12 shown in FIG. 1 and a return channel mouth 21a for connecting the fuel return line 11 shown in FIG. 1
- the high-pressure channel mouth 19a for connecting the high-pressure fuel line 4 is provided centrally on the end face of the common high-pressure connection 26, and the leakage channel mouth 20a for connecting the leakage line 12 and the
- Rucklaufkanalmundung 21 a for connecting the return line 1 1, return port 27, are provided spaced apart in the axial direction on the circumference of the common high-pressure port 26.
- the above-mentioned mouthings 19a, 20a, 21a of the high-pressure duct, leakage duct and return duct are each sealed and separated from one another by associated sealing elements.
- Fuel line 13 (cf. FIG. 1) is formed by three coaxially arranged, surrounding line pipes 30, 31, 32. Of these, the inner line pipe 30 forms the high-pressure fuel line 4.
- the inner line pipe 30 is surrounded by an inner and an outer jacket pipe 31, 32, each of which enclose a flow cross-section 31a, 32a and form the fuel line 11 and the leakage line 12 (see FIG. 1). That the
- the inner jacket pipe 31 surrounding the high-pressure fuel line 30 forms the leakage line 12
- the outer jacket pipe 32 surrounding the inner jacket pipe 31 forms the fuel return line 11.
- the jacket pipes 31, 32 are provided on their inner surface with longitudinally extending channels 31a, 32a, each of which has the flow cross sections
- webs 31b, 32b are formed between these channels 31a, 32a forming the flow cross sections, which rest on the outer circumference of the respective inner tube surrounding the respective jacket tube 31, 32, i.e. the webs 31b of the inner Jacket tube 31 on the outer circumference of the high-pressure tube 30 and the webs 32b of the outer jacket tube 32 on the outer circumference of the inner jacket tube 31
- connection element 28 which connects the flow cross sections 30a of the high pressure pipe 30, 31a of the leakage line 12 the inner jacket pipe 31 and 32a of the outer jacket pipe 32 forming the leakage line with the associated mouths 19a, 20a and 21a of the high-pressure channel, leakage channel and return channel formed on the common high-pressure connection 26.
- a sealing cone 37 is formed at the end of the central high-pressure pipe 30, which cooperates with a sealing element in the form of a sealing cone 37 which is formed on the end face of the common high-pressure connection 26, as is customary per se in the field of fuel injectors 21 and 20a of the leakage channel 20 are each sealed and separated from one another by sealing elements 34, 35, 36 in the form of O-rings.
- a screw-on sleeve 38 which is an essential part of the connecting element 28, contains connecting channels 39 and 40, one of which is an internal connecting channel 39 a connection to the flow cross section 31a of the inner
- the connecting channels 39 and 40 each close to the mouths 20a and 21a of the leakage channel and the return channel and the sealing elements 33, 34, 35 cooperate the inner circumferential surface of the screw sleeve 38 so that a flow path to the return channel mouth 21a is created from the connecting channel 40 and a flow path to the leakage channel mouth 20a is created by the connecting channel 39 LIST OF REFERENCE NUMBERS
- High-pressure pump Fuel supply High-pressure accumulator High-pressure fuel line Fuel injector Fuel channel Injector nozzle Control valve Injector housing Fuel return line Leakage line Common fuel line Solenoid Closing body of the control valve Valve body Nozzle needle High-pressure channel a High-pressure channel mouth Leakage channel a Leakage channel mouth Return channel a Return channel mouth Nozzle area High-pressure needle return pipe connection sleeve outer casing tube a channel a channels a channels b webs b webs
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19931282A DE19931282C1 (de) | 1999-07-07 | 1999-07-07 | Kraftstoffeinspritzsystem für eine Brennkraftmaschine |
DE19931282 | 1999-07-07 | ||
PCT/EP2000/006283 WO2001004488A1 (fr) | 1999-07-07 | 2000-07-05 | Systeme d'injection de carburant pour moteur thermique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1192352A1 true EP1192352A1 (fr) | 2002-04-03 |
EP1192352B1 EP1192352B1 (fr) | 2004-12-29 |
Family
ID=7913900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00953005A Expired - Lifetime EP1192352B1 (fr) | 1999-07-07 | 2000-07-05 | Systeme d'injection de carburant pour moteur thermique |
Country Status (5)
Country | Link |
---|---|
US (1) | US6604509B1 (fr) |
EP (1) | EP1192352B1 (fr) |
JP (1) | JP2003504552A (fr) |
DE (2) | DE19931282C1 (fr) |
WO (1) | WO2001004488A1 (fr) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10020683A1 (de) * | 2000-04-27 | 2001-10-31 | Siemens Ag | Einspritzsystem mit doppelwandiger Kraftstoffleitung |
DE10105031A1 (de) * | 2001-02-05 | 2002-08-14 | Bosch Gmbh Robert | Vorrichtung zur Dämpfung von Druckpulsationen in Hochdruckeinspritzsystemen |
DK1793121T3 (da) | 2002-07-01 | 2009-04-14 | Mitsubishi Heavy Ind Ltd | Brændstofinjektor og dieselmotor omfattende samme |
US6840225B2 (en) * | 2002-09-24 | 2005-01-11 | Deere & Company | Fuel injector assembly |
JP3935829B2 (ja) * | 2002-11-20 | 2007-06-27 | 三菱重工業株式会社 | 内燃機関のリーク燃料回収装置 |
DE10313133B3 (de) * | 2003-03-24 | 2004-09-23 | Robert Bosch Gmbh | Anordnung zum Überwachen von Betriebsparametern in einem Verbrennungsmotor |
US6827065B2 (en) * | 2003-04-08 | 2004-12-07 | General Motors Corporation | Diesel injection system with dual flow fuel line |
DE102005025873A1 (de) * | 2005-06-06 | 2006-12-07 | Robert Bosch Gmbh | Injektor zur Verwendung in Hochdruck-Einspritzsystemen |
DE102006049224B4 (de) * | 2006-10-18 | 2018-08-02 | Man Diesel & Turbo Se | Kraftstoffversorgungsanlage einer Brennkraftmaschine |
FI120886B (fi) * | 2008-06-05 | 2010-04-15 | Waertsilae Finland Oy | Polttoaineen ruiskutusjärjestelmä mäntämoottorille |
CA2635410C (fr) * | 2008-06-19 | 2010-08-17 | Westport Power Inc. | Double connecteur a carburants |
US8079220B2 (en) * | 2008-08-28 | 2011-12-20 | Delavan Inc | Fuel distribution manifold system for gas turbine engines |
AT509177B1 (de) * | 2009-11-23 | 2013-09-15 | Bosch Gmbh Robert | Druckrohrstutzen für common-rail-einspritzsystem |
US8522752B2 (en) * | 2010-09-03 | 2013-09-03 | Caterpillar Inc. | Co-axial quill assembly for dual fuel common rail system |
FI124086B (fi) * | 2011-02-09 | 2014-03-14 | Wärtsilä Finland Oy | Putkiliitin ja polttoaineen ruiskutusjärjestelmä |
FI20115126L (fi) * | 2011-02-09 | 2012-08-10 | Waertsilae Finland Oy | Polttoaineen ruiskutusjärjestelmä |
US8991360B2 (en) | 2012-06-27 | 2015-03-31 | Caterpillar Inc. | Coaxial quill assembly retainer and common rail fuel system using same |
US9181881B2 (en) | 2012-08-03 | 2015-11-10 | Caterpillar Inc. | Co-axial quill assembly retainer and dual fuel common rail engine using same |
CN108138720B (zh) * | 2015-08-04 | 2021-10-19 | 西港能源有限公司 | 多燃料轨道设备 |
DE102022213925A1 (de) * | 2022-12-19 | 2024-06-20 | Robert Bosch Gesellschaft mit beschränkter Haftung | Injektor für flüssige oder gasförmige Brennstoffe und Verfahren zum Betreiben eines solchen Injektors |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE462273C (de) | 1928-07-07 | Deckel Friedrich | Brennstoffdruckleitung fuer Einspritzvorrichtungen von Verbrennungskraftmaschinen | |
DE7638072U1 (de) | 1976-12-04 | 1977-03-17 | Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg | Brennkraftmaschine mit Kraftstoffeinspritzvorrichtung |
DE7702791U1 (de) | 1977-02-01 | 1977-05-26 | Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg | Brennkraftmaschine mit kraftstoffeinspritzvorrichtung |
US4149568A (en) * | 1977-12-07 | 1979-04-17 | Caterpillar Tractor Co. | Double walled fuel line |
DE8124604U1 (de) * | 1981-08-22 | 1982-02-04 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg | "kraftstoffdruckleitung" |
JP2694276B2 (ja) * | 1988-04-18 | 1997-12-24 | スズキ株式会社 | 燃料供給装置 |
US5076242A (en) * | 1990-07-18 | 1991-12-31 | Illinois Tool Works Inc. | Integral fuel line |
US5239964A (en) * | 1992-05-11 | 1993-08-31 | Illinois Tool Works Inc. | Concentric fuel line system |
IT227559Y1 (it) * | 1992-05-21 | 1997-12-15 | Weber Srl | Collettore per un dispositivo di alimentazione di carburante ad un mo- tore a combustione interna. |
US5611373A (en) | 1995-04-27 | 1997-03-18 | Handy & Harman Automotive Group, Inc. | Laminated fuel line and connector |
IT1284334B1 (it) | 1996-01-23 | 1998-05-18 | Fiat Ricerche | Struttura di contenimento e di raccolta di combustibile per un impianto di iniezione ad alta pressione di motori a combustione |
US6499466B2 (en) * | 2000-10-25 | 2002-12-31 | Siemens Vdo Automotive Inc. | Double walled fuel rail |
-
1999
- 1999-07-07 DE DE19931282A patent/DE19931282C1/de not_active Expired - Fee Related
-
2000
- 2000-07-05 WO PCT/EP2000/006283 patent/WO2001004488A1/fr active IP Right Grant
- 2000-07-05 JP JP2001509867A patent/JP2003504552A/ja not_active Withdrawn
- 2000-07-05 US US10/019,959 patent/US6604509B1/en not_active Expired - Fee Related
- 2000-07-05 DE DE50009126T patent/DE50009126D1/de not_active Expired - Fee Related
- 2000-07-05 EP EP00953005A patent/EP1192352B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0104488A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6604509B1 (en) | 2003-08-12 |
DE50009126D1 (de) | 2005-02-03 |
DE19931282C1 (de) | 2001-01-11 |
JP2003504552A (ja) | 2003-02-04 |
WO2001004488A1 (fr) | 2001-01-18 |
EP1192352B1 (fr) | 2004-12-29 |
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