EP1445474A1 - Fuel injector, fuel rail and injection system with the fuel rail and the fuel injector - Google Patents
Fuel injector, fuel rail and injection system with the fuel rail and the fuel injector Download PDFInfo
- Publication number
- EP1445474A1 EP1445474A1 EP03001800A EP03001800A EP1445474A1 EP 1445474 A1 EP1445474 A1 EP 1445474A1 EP 03001800 A EP03001800 A EP 03001800A EP 03001800 A EP03001800 A EP 03001800A EP 1445474 A1 EP1445474 A1 EP 1445474A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- rail
- tube
- injector
- fuel injector
- 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- Withdrawn
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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
- 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
-
- 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
- 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
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
Definitions
- the invention relates to a fuel injector with a fuel tube, whereby the end of the fuel tube can be used for connecting the fuel injector to a fuel rail. Furthermore, the invention relates to a fuel rail that is used for supplying a fuel injector with fuel.
- the fuel rail comprises a fuel tube that can be used for connecting the fuel rail with the fuel injector.
- the invention relates to a fuel injection system with a fuel rail that is connected to the fuel injector via a fuel tube.
- Fuel injection systems with a fuel rail and a fuel injector are used for example for direct injection that provides fuel with a high pressure in a fuel rail.
- the fuel rail supplies the fuel to the fuel injector. If the fuel is under high pressure then the fuel rail has to be connected to the fuel injector by a tube.
- the tube has the function to deliver the pressurized fuel to the injector and to maintain the pressure of the fuel. Therefore it is not possible to use elastic fuel lines as these are known to be used in injection systems that use fuel with low or no pressure.
- a fuel rail supplies some fuel injectors with fuel and the position of the fuel injectors is determined by the position of the fuel rail, because the connection between the fuel rail and the fuel injectors is rigid. Each fuel injector however must fit in a corresponding fuel injector opening of a cylinder head. Misalignment and production tolerances result in fitting problems.
- DE 19 748 593 A1 provides the use of fuel injectors that are connected to a fuel rail that is divided into two parts. The two parts are connected by a flexible part. Each fuel injector is pressed into an injector opening of the cylinder head by a spring element, whereby tips of the injectors are arranged within a longitudinal cylindrical bore.
- the longitudinal axis of a bore is in alignment with the direction of a fuel injector. Because of the cylindrical shape of the bore the longitudinal position of the fuel injector does not have to fit precisely. Deviations in the longitudinal positions of the fuel injectors are compensated by the flexible tube of the fuel rail.
- WO 2001/71179 A2 describes a fuel injector assembly for mounting a fuel injector to a fuel rail and permitting alignment of the fuel injector.
- the assembly includes a cup having an upper portion and a lower portion, the upper portion being connected to a fuel rail and the lower portion including an interior, an exterior and a lower surface.
- the fuel injector comprises an inlet, an outlet and a fuel passage way extending from the inlet to the outlet, the inlet being positioned within the interior of the cup.
- a collar can be positioned in proximity to the lower surface of the cup, the collar cincturing the inlet of the fuel injector.
- a fastener is secured to the exterior of the cup in such a way that the ring establishes an interference fit between the collar and the inlet of the fuel injector.
- the inlet extends to a given distance in the cup, allowing different positions of the fuel injector in a given longitudinal axis, whereby the fuel injector is tightly connected with the fuel rail. Depending on the distance between the cylinder head and the fuel rail, the inlet of the fuel injector is more or less inserted into the cup.
- the object of the invention is achieved by the fuel injector according to claim 1, by the fuel rail according to claim 3 and by the fuel injection system according to claim 6.
- the proposed fuel injector has the advantage that different distances between a cylinder head and the fuel rail can be compensated by the fuel injector or the fuel rail. That advantage is achieved by a flexible fuel tube that is part of the fuel injector or part of the fuel rail.
- the flexible fuel tube can be elongated, compressed or bended if necessary. The flexible tube however does not change its diameter, so that the pressure of the fuel does not decrease.
- a preferred embodiment of the flexible fuel tube is a metallic expansion bellow.
- the metallic expansion bellow has the advantage that high pressure of the fuel can reliably be maintained and the metallic expansion bellow is a well-known tool that is cheaply produced.
- the inventive fuel injector or the inventive fuel rail has the advantage that the fuel rail could be fixed to the cylinder head in a predetermined position. The fixing of the fuel rail to the cylinder head shows the advantage that the fixing is easy and cheap.
- Fig. 1 is a schematic view of a fuel injection system.
- Fig. 2 is a detailed view of a first embodiment of the invention.
- Fig. 3 is a detailed view of a second embodiment of the invention.
- Fig. 4 is a view of a third embodiment of the invention.
- Fig. 1 shows a fuel injection system that can be used for injecting petrol or gasoline.
- the fuel injection system comprises a fuel rail 22 that is connected with a pressure pump 11.
- the pressure pump is hydraulically connected with a fuel tank 12.
- the pressure pump 11 sucks fuel from the fuel tank 10 and pumps the fuel to the fuel rail 22.
- the pressure in the fuel rail 22 may be up to 150 bar for petrol and up to 1800 bar for gasoline.
- the fuel rail is hydraulically connected with fuel injectors 1.
- the fuel injectors 1 are fixed in injector openings 16 of a cylinder head 6 of a motor block 20.
- the motor block 20 comprises combustion chambers 13 that are provided with fuel by the fuel injectors 1.
- the fuel injectors 1 and the pressure pump 11 are electrically connected with a controlling unit 14.
- the controlling unit 14 controls the pressure and the volume of fuel that is pumped by the pressure pump 11.
- the controlling unit 14 also controls the injection of the fuel injectors 1.
- the fuel injectors 1 inject fuel in the combustion chambers 13 at predetermined points of time.
- the fuel rail 22 is fixed to the motor block 20. Therefore the position of the fuel rail is determined depending to the position of the injector openings 16 of the cylinder head 6, into which the fuel injectors 1 are inserted.
- Fig. 2 shows a part of the motor block 20, a part of the fuel rail 22 and the fuel injector 1.
- the fuel rail 22 is fixed to the motor block 20 by means of a screw 24.
- the fuel injector 1 comprises an injector tip 15 that injects fuel into the combustion chamber 13.
- the injector tip 15 is inserted in the injection hole 16 that is arranged in the cylinder head 6.
- the injection opening 16 is connected to the combustion chamber 13.
- the injector tip 15 comprises a sealing ring 17 that seals the combustion chamber 13.
- the fuel injector 1 comprises an inlet tube 2 that is connected to a rail connecting tube 21 of the fuel rail 22.
- the rail connecting tube 21 is produced in one piece with the fuel rail and is not flexible.
- a thread is provided to which a nut 5 is screwed providing a hydraulic connection between a tube end 3 of a flexible tube 4 and the rail connecting tube 21.
- the tube end 3 is pressed against a sealing face of the rail connecting tube 21 with a sealing face, providing a tight connection between the fuel injector 1 and the fuel rail 22.
- the flexible tube 4 is for example produced as a metallic expansion bellow.
- the metallic expansion bellow is flexible within a predetermined range.
- the expansion bellow can be extended or bended but its diameter does not change. If the bellow is mounted between the fuel rail and a fuel injector, that are fixed to the motor block, then the length of the metallic bellow is steady and the volume of the bellow does not change with the change of pressure in the fuel. Therefore the pressure of the fuel that is delivered from the fuel rail 22 to the fuel injector 1 does not decrease passing the bellow.
- each injection opening 16 may have a different distance to the fuel injector and the injection openings 16 may not always be in line with the assigned rail connecting tubes 21. Deviations of an optimum position of the injection openings 16 are compensated by the flexible fuel tube 4 that allow different positions of the fuel injectors referred to the fuel rail 22.
- Fig. 3 shows another embodiment of the invention with a flexible fuel tube 4 that is directly connected to the rail connecting tube 21.
- the flexible fuel tube 4 is i.e. welded to the rail connecting tube 21.
- the flexible tube 4 is connected to an inlet tube 2 of the fuel injector 1 by means of a nut 5.
- the fuel rail 22 is hydraulically connected with the fuel injector 1 via a tight connection. Also in this embodiment, deviations of an optimum position of the injection openings 16 at a distance to the fuel rail 22 and/or in lateral position to the assigned rail connecting tubes 21 can be compensated by the flexible tube 4.
- Fig. 4 shows a third embodiment of the invention that is basically constructed as the embodiment of Fig. 3, but comprises a spring element 10 that is arranged between the fuel rail 22 and the inlet tube 2 of the fuel injector 1.
- the spring element 10 surrounds the flexible tube 4 and presses the fuel injector 1 with its inlet tube 2 in the direction of the injection opening 16.
- This embodiment has the advantage that deviations of the optimum position of the injection opening can be compensated by the flexible tube 4 and the fuel injector 1 is additionally pressed against the cylinder head 6 providing a sealing of the injection opening 16.
- the flexible tube 4 is arranged within the axis of the spring element 10. This embodiment shows the advantage that the fuel injector 1 is safeguarded against the pressure in the combustion chamber 13 by the spring element. Furthermore the flexible tube 4 is protected against the pressure that is guided from the combustion chamber 13 by the fuel injector 1 to the flexible tube 4 by the spring element 10.
- the flexible tube 4 has the advantage that it can be bended or elongated but does not change its diameter. This means that the flexible tube could be used for compensating different distances between the fuel rail and the cylinder head 6 or misalignments between the axis of the rail line 21 and the axis of the injection opening 16. In the mounted position the flexible tube 4 does not change its size, which means that the pressure of the fuel rail cannot change the volume of the flexible tube 4 so that the pressure does not decrease using the flexible tube 4.
Abstract
The invention describes a fuel injector (1), a fuel rail (22) and a fuel injection system with a fuel rail and a fuel injector that are connected by a fuel tube (4). The fuel tube is flexible and elastic without changing its diameter. Using the flexible and elastic fuel tube different distances between the fuel rail and a cylinder head or a misalignment between a fuel connecting tube of the fuel rail that is connected with the fuel injector and an injection opening in a cylinder head will be compensated. <IMAGE>
Description
The invention relates to a fuel injector with a fuel tube,
whereby the end of the fuel tube can be used for connecting
the fuel injector to a fuel rail. Furthermore, the invention
relates to a fuel rail that is used for supplying a fuel injector
with fuel. The fuel rail comprises a fuel tube that
can be used for connecting the fuel rail with the fuel injector.
Moreover, the invention relates to a fuel injection system
with a fuel rail that is connected to the fuel injector
via a fuel tube.
Fuel injection systems with a fuel rail and a fuel injector
are used for example for direct injection that provides fuel
with a high pressure in a fuel rail. The fuel rail supplies
the fuel to the fuel injector. If the fuel is under high
pressure then the fuel rail has to be connected to the fuel
injector by a tube. The tube has the function to deliver the
pressurized fuel to the injector and to maintain the pressure
of the fuel. Therefore it is not possible to use elastic fuel
lines as these are known to be used in injection systems that
use fuel with low or no pressure. Normally, a fuel rail supplies
some fuel injectors with fuel and the position of the
fuel injectors is determined by the position of the fuel
rail, because the connection between the fuel rail and the
fuel injectors is rigid. Each fuel injector however must fit
in a corresponding fuel injector opening of a cylinder head.
Misalignment and production tolerances result in fitting
problems.
In the prior art, DE 19 748 593 A1 provides the use of fuel
injectors that are connected to a fuel rail that is divided
into two parts. The two parts are connected by a flexible
part. Each fuel injector is pressed into an injector opening
of the cylinder head by a spring element, whereby tips of the
injectors are arranged within a longitudinal cylindrical
bore. The longitudinal axis of a bore is in alignment with
the direction of a fuel injector. Because of the cylindrical
shape of the bore the longitudinal position of the fuel injector
does not have to fit precisely. Deviations in the longitudinal
positions of the fuel injectors are compensated by
the flexible tube of the fuel rail.
WO 2001/71179 A2 describes a fuel injector assembly for
mounting a fuel injector to a fuel rail and permitting alignment
of the fuel injector. The assembly includes a cup having
an upper portion and a lower portion, the upper portion being
connected to a fuel rail and the lower portion including an
interior, an exterior and a lower surface. The fuel injector
comprises an inlet, an outlet and a fuel passage way extending
from the inlet to the outlet, the inlet being positioned
within the interior of the cup. A collar can be positioned in
proximity to the lower surface of the cup, the collar cincturing
the inlet of the fuel injector. A fastener is secured
to the exterior of the cup in such a way that the ring establishes
an interference fit between the collar and the inlet
of the fuel injector.
The inlet extends to a given distance in the cup, allowing
different positions of the fuel injector in a given longitudinal
axis, whereby the fuel injector is tightly connected
with the fuel rail. Depending on the distance between the
cylinder head and the fuel rail, the inlet of the fuel injector
is more or less inserted into the cup.
It is an object of the invention to provide an improved fuel
injector, an improved fuel rail and an improved fuel injection
system.
The object of the invention is achieved by the fuel injector
according to claim 1, by the fuel rail according to claim 3
and by the fuel injection system according to claim 6.
Further preferred embodiments of the invention are disclosed
in the figures and in the dependent claims.
The proposed fuel injector has the advantage that different
distances between a cylinder head and the fuel rail can be
compensated by the fuel injector or the fuel rail. That advantage
is achieved by a flexible fuel tube that is part of
the fuel injector or part of the fuel rail. The flexible fuel
tube can be elongated, compressed or bended if necessary. The
flexible tube however does not change its diameter, so that
the pressure of the fuel does not decrease.
A preferred embodiment of the flexible fuel tube is a metallic
expansion bellow. Using the metallic expansion bellow has
the advantage that high pressure of the fuel can reliably be
maintained and the metallic expansion bellow is a well-known
tool that is cheaply produced. Using the inventive fuel injector
or the inventive fuel rail has the advantage that the
fuel rail could be fixed to the cylinder head in a predetermined
position. The fixing of the fuel rail to the cylinder
head shows the advantage that the fixing is easy and cheap.
The accompanying drawings, that are incorporated herein and
constitute part of this specification, illustrate preferred
embodiments of the invention, and, together with the general
description given above and the detailed description given
below, serve to explain the invention.
Fig. 1 is a schematic view of a fuel injection system.
Fig. 2 is a detailed view of a first embodiment of the invention.
Fig. 3 is a detailed view of a second embodiment of the invention.
Fig. 4 is a view of a third embodiment of the invention.
Fig. 1 shows a fuel injection system that can be used for injecting
petrol or gasoline. The fuel injection system comprises
a fuel rail 22 that is connected with a pressure pump
11. The pressure pump is hydraulically connected with a fuel
tank 12. The pressure pump 11 sucks fuel from the fuel tank
10 and pumps the fuel to the fuel rail 22. The pressure in
the fuel rail 22 may be up to 150 bar for petrol and up to
1800 bar for gasoline. The fuel rail is hydraulically connected
with fuel injectors 1. The fuel injectors 1 are fixed
in injector openings 16 of a cylinder head 6 of a motor block
20.
The motor block 20 comprises combustion chambers 13 that are
provided with fuel by the fuel injectors 1. The fuel injectors
1 and the pressure pump 11 are electrically connected
with a controlling unit 14. The controlling unit 14 controls
the pressure and the volume of fuel that is pumped by the
pressure pump 11. The controlling unit 14 also controls the
injection of the fuel injectors 1. The fuel injectors 1 inject
fuel in the combustion chambers 13 at predetermined
points of time.
The fuel rail 22 is fixed to the motor block 20. Therefore
the position of the fuel rail is determined depending to the
position of the injector openings 16 of the cylinder head 6,
into which the fuel injectors 1 are inserted.
Fig. 2 shows a part of the motor block 20, a part of the fuel
rail 22 and the fuel injector 1. The fuel rail 22 is fixed to
the motor block 20 by means of a screw 24. The fuel injector
1 comprises an injector tip 15 that injects fuel into the
combustion chamber 13. The injector tip 15 is inserted in the
injection hole 16 that is arranged in the cylinder head 6.
The injection opening 16 is connected to the combustion chamber
13. The injector tip 15 comprises a sealing ring 17 that
seals the combustion chamber 13. At an upper end, the fuel
injector 1 comprises an inlet tube 2 that is connected to a
rail connecting tube 21 of the fuel rail 22. The rail connecting
tube 21 is produced in one piece with the fuel rail
and is not flexible. At the end of the rail connecting tube
21 a thread is provided to which a nut 5 is screwed providing
a hydraulic connection between a tube end 3 of a flexible
tube 4 and the rail connecting tube 21. The tube end 3 is
pressed against a sealing face of the rail connecting tube 21
with a sealing face, providing a tight connection between the
fuel injector 1 and the fuel rail 22.
The flexible tube 4 is for example produced as a metallic expansion
bellow. The metallic expansion bellow is flexible
within a predetermined range. The expansion bellow can be extended
or bended but its diameter does not change. If the
bellow is mounted between the fuel rail and a fuel injector,
that are fixed to the motor block, then the length of the metallic
bellow is steady and the volume of the bellow does not
change with the change of pressure in the fuel. Therefore the
pressure of the fuel that is delivered from the fuel rail 22
to the fuel injector 1 does not decrease passing the bellow.
Instead of the metallic bellow, use can also be made of other
tubes that can be bended and/or extended, whereby the diameter
of the tube does not change with the pressure in the
tube.
There are some injection openings 16 and each injection opening
16 may have a different distance to the fuel injector and
the injection openings 16 may not always be in line with the
assigned rail connecting tubes 21. Deviations of an optimum
position of the injection openings 16 are compensated by the
flexible fuel tube 4 that allow different positions of the
fuel injectors referred to the fuel rail 22.
Fig. 3 shows another embodiment of the invention with a
flexible fuel tube 4 that is directly connected to the rail
connecting tube 21. The flexible fuel tube 4 is i.e. welded
to the rail connecting tube 21. In this embodiment the flexible
tube 4 is connected to an inlet tube 2 of the fuel injector
1 by means of a nut 5. The fuel rail 22 is hydraulically
connected with the fuel injector 1 via a tight connection.
Also in this embodiment, deviations of an optimum position of
the injection openings 16 at a distance to the fuel rail 22
and/or in lateral position to the assigned rail connecting
tubes 21 can be compensated by the flexible tube 4.
Fig. 4 shows a third embodiment of the invention that is basically
constructed as the embodiment of Fig. 3, but comprises
a spring element 10 that is arranged between the fuel
rail 22 and the inlet tube 2 of the fuel injector 1. The
spring element 10 surrounds the flexible tube 4 and presses
the fuel injector 1 with its inlet tube 2 in the direction of
the injection opening 16. This embodiment has the advantage
that deviations of the optimum position of the injection
opening can be compensated by the flexible tube 4 and the
fuel injector 1 is additionally pressed against the cylinder
head 6 providing a sealing of the injection opening 16. The
flexible tube 4 is arranged within the axis of the spring
element 10. This embodiment shows the advantage that the fuel
injector 1 is safeguarded against the pressure in the combustion
chamber 13 by the spring element. Furthermore the flexible
tube 4 is protected against the pressure that is guided
from the combustion chamber 13 by the fuel injector 1 to the
flexible tube 4 by the spring element 10.
The flexible tube 4 has the advantage that it can be bended
or elongated but does not change its diameter. This means
that the flexible tube could be used for compensating different
distances between the fuel rail and the cylinder head 6
or misalignments between the axis of the rail line 21 and the
axis of the injection opening 16. In the mounted position the
flexible tube 4 does not change its size, which means that
the pressure of the fuel rail cannot change the volume of the
flexible tube 4 so that the pressure does not decrease using
the flexible tube 4.
Claims (9)
- Fuel injector with a fuel tube with a tube end that can be used for connecting the fuel injector to a fuel rail,
characterised in that the fuel tube (4) is flexible and elastic without changing its diameter under pressure. - Fuel injector according to claim 1 or 2, characterised in that the fuel tube (4) is made of a metallic expansion bellow.
- Fuel rail for supplying a fuel injector with fuel by means of a fuel tube that can be used for connecting the fuel rail with the fuel injector,
characterised in that the fuel tube (4) is flexible and elastic without changing its diameter under pressure. - Fuel rail according to claim 4 or 5, characterised in that the fuel tube is made of a metallic expansion bellow.
- Fuel rail according to claim 3, characterised in that a spring element (10) is arranged that the spring element is supported against the fuel rail (22) and the fuel injector (1) and that the spring element (10) pushes the fuel injector (1) from the fuel rail (22).
- Fuel rail according claim 5, characterised in that the fuel tube (4) is surrounded by a spring element (10), that the spring element (10) is supported above and below the elastic part of the fuel tube (4) with the fuel rail (22) and the fuel injector (1).
- Injection system with a fuel rail that is connected to a fuel injector by a fuel tube, characterised in that the fuel tube (4) is flexible and elastic without changing its diameter under pressure.
- Injection system according to claim 7, characterised in that the fuel rail (22) is fixed in a predetermined position to a cylinder head (6), that the fuel injector (1) is arranged in an injection opening (16) of the cylinder head (6) and that a spring element (10) is arranged between the fuel rail (22) and the fuel injector (1) pushing the fuel injector (1) against the cylinder head (6).
- Injection system according to one of the claims 7 or 8 characterised in that the fuel tube (4) is made of a metallic expansion bellow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03001800A EP1445474A1 (en) | 2003-01-28 | 2003-01-28 | Fuel injector, fuel rail and injection system with the fuel rail and the fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03001800A EP1445474A1 (en) | 2003-01-28 | 2003-01-28 | Fuel injector, fuel rail and injection system with the fuel rail and the fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1445474A1 true EP1445474A1 (en) | 2004-08-11 |
Family
ID=32605254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03001800A Withdrawn EP1445474A1 (en) | 2003-01-28 | 2003-01-28 | Fuel injector, fuel rail and injection system with the fuel rail and the fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP1445474A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1780403A2 (en) | 2005-10-25 | 2007-05-02 | Robert Bosch Gmbh | Fuel injection valve |
| EP2006530A1 (en) * | 2007-06-21 | 2008-12-24 | Benteler Automobiltechnik GmbH | Common rail |
| CN103140665A (en) * | 2010-06-30 | 2013-06-05 | 奥比托澳大利亚有限公司 | Fuel injection assembly |
| EP2813699A1 (en) * | 2013-06-14 | 2014-12-17 | FPT Motorenforschung AG | Fuel piping arrangement in common rail type fuel supply systems |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295452A (en) * | 1978-07-01 | 1981-10-20 | Robert Bosch Gmbh | Fuel injection system |
| US6148797A (en) * | 1997-12-17 | 2000-11-21 | Robert Bosch Gmbh | Mounting device for mounting fuel injection valves |
| WO2001071179A2 (en) * | 2000-03-21 | 2001-09-27 | Siemens Aktiengesellschaft | Fuel injector assembly for mounting and aligning a fuel injector to a fuel rail |
-
2003
- 2003-01-28 EP EP03001800A patent/EP1445474A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295452A (en) * | 1978-07-01 | 1981-10-20 | Robert Bosch Gmbh | Fuel injection system |
| US6148797A (en) * | 1997-12-17 | 2000-11-21 | Robert Bosch Gmbh | Mounting device for mounting fuel injection valves |
| WO2001071179A2 (en) * | 2000-03-21 | 2001-09-27 | Siemens Aktiengesellschaft | Fuel injector assembly for mounting and aligning a fuel injector to a fuel rail |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1780403A2 (en) | 2005-10-25 | 2007-05-02 | Robert Bosch Gmbh | Fuel injection valve |
| EP1780403A3 (en) * | 2005-10-25 | 2007-11-21 | Robert Bosch Gmbh | Fuel injection valve |
| EP2006530A1 (en) * | 2007-06-21 | 2008-12-24 | Benteler Automobiltechnik GmbH | Common rail |
| CN103140665A (en) * | 2010-06-30 | 2013-06-05 | 奥比托澳大利亚有限公司 | Fuel injection assembly |
| CN103140665B (en) * | 2010-06-30 | 2016-03-02 | 奥比托澳大利亚有限公司 | Fuel injection assemblies |
| EP2813699A1 (en) * | 2013-06-14 | 2014-12-17 | FPT Motorenforschung AG | Fuel piping arrangement in common rail type fuel supply systems |
| WO2014198818A1 (en) * | 2013-06-14 | 2014-12-18 | Fpt Motorenforschung Ag | Fuel piping arrangement in common rail type fuel supply systems |
| JP2016520764A (en) * | 2013-06-14 | 2016-07-14 | エフピーティー モーターエンフォーシュング エージー | Fuel piping configuration of common rail fuel supply system |
| US10260468B2 (en) | 2013-06-14 | 2019-04-16 | Fpt Motorenforschung Ag | Fuel piping arrangement in common rail type fuel supply systems |
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