EP2426351B1 - Adjusting fuel filter assembly and injection valve - Google Patents
Adjusting fuel filter assembly and injection valve Download PDFInfo
- Publication number
- EP2426351B1 EP2426351B1 EP20100175059 EP10175059A EP2426351B1 EP 2426351 B1 EP2426351 B1 EP 2426351B1 EP 20100175059 EP20100175059 EP 20100175059 EP 10175059 A EP10175059 A EP 10175059A EP 2426351 B1 EP2426351 B1 EP 2426351B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adjusting
- filter assembly
- inlet tube
- injection valve
- fuel
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims description 66
- 238000002347 injection Methods 0.000 title claims description 29
- 239000007924 injection Substances 0.000 title claims description 29
- 239000000463 material Substances 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 230000010349 pulsation Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
-
- 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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
- F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
- F02M2200/505—Adjusting spring tension by sliding spring seats
Definitions
- the invention relates to an adjusting fuel filter assembly for an injection valve and an injection valve.
- Injection valves are in widespread use, in particular for an internal combustion engine where they may be arranged in order to dose the fluid into an intake manifold of the internal combustion engine or directly into the combustion chamber of a cylinder of the internal combustion engine.
- injection valves are manufactured in various forms in order to satisfy the various needs for the various combustion engines. Therefore, for example, their length, their diameter, and all the various elements of the injection valve being responsible for the way the fluid is dosed may vary in a wide range.
- injection valves can accommodate an actuator for actuating a needle of the injection valve, which may be, for example, an electromagnetic actuator or a piezoelectric actuator.
- the respective injection valve may be suited to dose fluids under high pressures.
- the pressures may be in case of a gasoline engine, for example, in the range of up to 200 bar, and in case of a diesel engine, in the range of 2000 bar, and above.
- an injection valve normally comprises a fuel filter for filtering the fluid, and it also comprises an adjusting member for adjusting the maximal calibration spring load of the injection valve. Filtering the fuel is necessary for keeping possible impurities of the fuel off from the needle and off from the injection nozzle.
- a so-called adjusting fuel filter assembly comprising three parts: a frame, a bush, and a screen. Such an adjusting fuel filter assembly cooperates with a spring, which preloads the valve needle.
- creating such an adjusting fuel filter assembly is rather complicated, and therefore expensive.
- WO 01/57385 A2 disclose various fuel filters for fuel injectors.
- DE 10 2007 049 963 A1 disclose various fuel filters for fuel injectors.
- EP 1296057 A1 disclose various fuel filters for fuel injectors.
- the object of the invention is to create an adjusting fuel filter assembly for an injection valve and an injection valve which is simple to be manufactured and which facilitates a reliable and precise function.
- An injection valve 2, as shown in Fig. 1 that is in particular suitable for dosing fuel to an internal combustion engine, generally comprises, among others, a fuel inlet tube 15, an actuator unit 6, and a valve assembly 4 including a valve needle 13.
- the valve needle 13 is arranged along a central longitudinal axis L of the injection valve 2 and it can be moved within the valve assembly 4 along said central longitudinal axis L.
- the injection valve 2 of Fig. 1 additionally comprises a traditional adjusting fuel filter assembly 42, arranged within the fuel inlet tube 15. Its purpose is, on the one hand, to filter incoming fuel, and, on the other hand, to cooperate with a main spring 22, also being arranged within the fuel inlet tube 15.
- the main spring 22 is arranged between the adjusting fuel filter assembly 42 and the valve needle 13, and it is mechanically coupled to the valve needle 13 and to the adjusting fuel filter assembly 42 to exert a force onto the valve needle 13 in the direction of said central longitudinal axis L. In this way an adjusting fuel filter arrangement can be established.
- the traditional adjusting fuel filter assembly 42 consists of a frame 42a, an external bush 42c, which may be made of stainless steel, and of a screen 42b for filtering the fuel.
- the screen 42b is made of nylon and it may be adapted to filter contamination out from the fuel having a size of more than 30 ⁇ m in diameter.
- the screen 42b is fixed to the frame 42a.
- the adjusting fuel filter assembly 42 When manufacturing the injection valve 2, within a calibration procedure the adjusting fuel filter assembly 42 is axially moved along said central longitudinal axis L in order to exert a force onto the valve needle 13 in the direction of said central longitudinal axis L. This is to preload the main spring 22 with a desired amount of spring force. Thus the maximum amount of needle lift of the valve needle 13 can be precisely calibrated, which is essential for minimizing occurrence of waste gas as much as possible.
- This calibration procedure is done by coupling the external bush 42c of the adjusting fuel filter assembly 42 to an inner surface of the fuel inlet tube 15 by interference at a desired, given position of said inner surface.
- Fig. 3 shows a first embodiment of an injection valve 2 according to the present invention, comprising the adjusting fuel filter assembly 42 also according to the present invention.
- This new and inventive adjusting fuel filter assembly 42 consists of an external bush 42c, 42c' and an internal filter material 42d.
- the external bush 42c, 42c' is made of a stainless material, especially of stainless steel.
- the internal metallic filter material 42d is also of a stainless material. Specifically, it is made of sintered material like ceramic powder, plastic powder, steel powder or of wire mesh, and it is advantageous for the material to have a porosity, which allows filtering fuel impurities in the range of 2 ⁇ m and larger (for instance 60 ⁇ m).
- Fig. 4 shows the external bush 42c, 42c' in a perspective view (the internal filter material 42d cannot be seen in this view) and Fig. 4a shows the external bush 42c, 42c' in a longitudinal section.
- the external bush 42c, 42c' comprises a longitudinal axis L' and a circumferential step 42e.
- the circumferential step 42e is arranged orthogonal to said longitudinal axis L'. It segments the external bush 42c, 42c' into an upper section 42c and into a lower section 42c', whereby an outer diameter of the upper section 42c is greater than an outer diameter of the lower section 42c'.
- the internal filter material 42d is shown in Fig. 5 . It is arranged within in the lower section 42c' of the external bush 42c, 42c'.
- the adjusting fuel filter assembly 42 is arranged within the fuel inlet tube 15, whereby at least a part of the upper section 42c of the external bush 42c, 42c' is directly engaged with an inner surface of the fuel inlet tube 15, for instance by interference.
- Fig. 6 shows another embodiment of the injection valve according to the invention. This embodiment differs from the embodiment of Fig. 3 only insofar, as there is fixed an adjusting tube 40 within the fuel inlet tube 15, and the adjusting fuel filter assembly 42 is engaged within this adjusting tube 40, so that an outer surface of the adjusting tube 40 is engaged with the inner surface of the fuel inlet tube 15, and an inner surface of the adjusting tube 40 is directly engaged with at least a part of the outer surface of the upper section 42c of the external bush 42c, 42c' of the adjusting fuel filter assembly 42.
- both, the fuel inlet tube 15 and the adjusting tube 40 made of one piece by providing the fuel inlet tube 15 with a step, whereby that part of the fuel inlet tube 15, which is arranged below the step, has a smaller diameter than that part of the fuel inlet tube 15, which is arranged above the step, and whereby that part of the fuel inlet tube 15, which is arranged below the step, acts as the adjusting tube 40.
- the subject matters of the invention have the advantages, beyond the advantages already described, that they are better protected against aggressive fuel, that they show a simplified shape, and that they are of reduced dimensions, compared with the respective subject matters of the prior art, in each case.
- a further advantage of the adjusting fuel filter assembly 42 is that the internal filter material 42d also has dampening properties. Pressure pulsations and drops of pressure, occurring with the fuel pressure, when the fuel is passing through the filter material 42d, is reduced and minimized significantly by using said internal filter material 42d.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Description
- The invention relates to an adjusting fuel filter assembly for an injection valve and an injection valve.
- Injection valves are in widespread use, in particular for an internal combustion engine where they may be arranged in order to dose the fluid into an intake manifold of the internal combustion engine or directly into the combustion chamber of a cylinder of the internal combustion engine.
- Injection valves are manufactured in various forms in order to satisfy the various needs for the various combustion engines. Therefore, for example, their length, their diameter, and all the various elements of the injection valve being responsible for the way the fluid is dosed may vary in a wide range. In addition to that, injection valves can accommodate an actuator for actuating a needle of the injection valve, which may be, for example, an electromagnetic actuator or a piezoelectric actuator.
- In order to enhance the combustion process in view of degradation of unwanted emissions, the respective injection valve may be suited to dose fluids under high pressures. The pressures may be in case of a gasoline engine, for example, in the range of up to 200 bar, and in case of a diesel engine, in the range of 2000 bar, and above.
- In addition, in order to enhance the combustion process, an injection valve normally comprises a fuel filter for filtering the fluid, and it also comprises an adjusting member for adjusting the maximal calibration spring load of the injection valve. Filtering the fuel is necessary for keeping possible impurities of the fuel off from the needle and off from the injection nozzle. For these purposes it is known to provide a so-called adjusting fuel filter assembly comprising three parts: a frame, a bush, and a screen. Such an adjusting fuel filter assembly cooperates with a spring, which preloads the valve needle. However, creating such an adjusting fuel filter assembly is rather complicated, and therefore expensive.
-
WO 01/57385 A2 DE 10 2007 049 963 A1 , andEP 1296057 A1 disclose various fuel filters for fuel injectors. - The object of the invention is to create an adjusting fuel filter assembly for an injection valve and an injection valve which is simple to be manufactured and which facilitates a reliable and precise function.
- This object is achieved by the features of the independent claims. Advantageous embodiments of the invention are given in the sub-claims.
- Exemplary embodiments of the invention are explained in the following with the aid of schematic drawings. These are as follows:
- Figure 1,
- a traditional injection valve with a traditional adjusting fuel filter assembly, in a longitudinal section view,
- Figure 2,
- an enlarged and detailed view of the traditional adjusting fuel filter assembly of the traditional injection valve in a perspective view,
- Figure 3,
- an embodiment of an injection valve including an adjusting fuel filter assembly, both of the invention,
- Figure 4,
- an enlarged and detailed view of an embodiment of the adjusting fuel filter assembly according to the invention, in a perspective view,
- Figure 4a,
- the external bush of the embodiment of
Fig. 4 in a cross sectional view, - Figure 5,
- an embodiment of the internal filter material of the adjusting fuel filter assembly according to the invention, and
- Figure 6,
- another embodiment of an injection valve including the adjusting fuel filter assembly, both of the invention,
- Elements of the same design and function that appear in different illustrations are identified by the same reference characters.
- An
injection valve 2, as shown inFig. 1 , that is in particular suitable for dosing fuel to an internal combustion engine, generally comprises, among others, afuel inlet tube 15, an actuator unit 6, and a valve assembly 4 including avalve needle 13. Thevalve needle 13 is arranged along a central longitudinal axis L of theinjection valve 2 and it can be moved within the valve assembly 4 along said central longitudinal axis L. - The
injection valve 2 ofFig. 1 additionally comprises a traditional adjustingfuel filter assembly 42, arranged within thefuel inlet tube 15. Its purpose is, on the one hand, to filter incoming fuel, and, on the other hand, to cooperate with amain spring 22, also being arranged within thefuel inlet tube 15. Themain spring 22 is arranged between the adjustingfuel filter assembly 42 and thevalve needle 13, and it is mechanically coupled to thevalve needle 13 and to the adjustingfuel filter assembly 42 to exert a force onto thevalve needle 13 in the direction of said central longitudinal axis L. In this way an adjusting fuel filter arrangement can be established. - As can be seen from
Fig. 2 , the traditional adjustingfuel filter assembly 42 consists of aframe 42a, anexternal bush 42c, which may be made of stainless steel, and of ascreen 42b for filtering the fuel. Thescreen 42b is made of nylon and it may be adapted to filter contamination out from the fuel having a size of more than 30 µm in diameter. Thescreen 42b is fixed to theframe 42a. - When manufacturing the
injection valve 2, within a calibration procedure the adjustingfuel filter assembly 42 is axially moved along said central longitudinal axis L in order to exert a force onto thevalve needle 13 in the direction of said central longitudinal axis L. This is to preload themain spring 22 with a desired amount of spring force. Thus the maximum amount of needle lift of thevalve needle 13 can be precisely calibrated, which is essential for minimizing occurrence of waste gas as much as possible. This calibration procedure is done by coupling theexternal bush 42c of the adjustingfuel filter assembly 42 to an inner surface of thefuel inlet tube 15 by interference at a desired, given position of said inner surface. -
Fig. 3 shows a first embodiment of aninjection valve 2 according to the present invention, comprising the adjustingfuel filter assembly 42 also according to the present invention. This new and inventive adjustingfuel filter assembly 42 consists of anexternal bush internal filter material 42d. Theexternal bush metallic filter material 42d is also of a stainless material. Specifically, it is made of sintered material like ceramic powder, plastic powder, steel powder or of wire mesh, and it is advantageous for the material to have a porosity, which allows filtering fuel impurities in the range of 2 µm and larger (for instance 60 µm). - In
Figs. 4, 4a and 5 this adjustingfuel filter assembly 42 is shown in more details:Fig. 4 shows theexternal bush internal filter material 42d cannot be seen in this view) andFig. 4a shows theexternal bush external bush circumferential step 42e. Thecircumferential step 42e is arranged orthogonal to said longitudinal axis L'. It segments theexternal bush upper section 42c and into alower section 42c', whereby an outer diameter of theupper section 42c is greater than an outer diameter of thelower section 42c'. Theinternal filter material 42d is shown inFig. 5 . It is arranged within in thelower section 42c' of theexternal bush - In the embodiment of
Fig. 3 the adjustingfuel filter assembly 42 is arranged within thefuel inlet tube 15, whereby at least a part of theupper section 42c of theexternal bush fuel inlet tube 15, for instance by interference. -
Fig. 6 shows another embodiment of the injection valve according to the invention. This embodiment differs from the embodiment ofFig. 3 only insofar, as there is fixed an adjustingtube 40 within thefuel inlet tube 15, and the adjustingfuel filter assembly 42 is engaged within this adjustingtube 40, so that an outer surface of the adjustingtube 40 is engaged with the inner surface of thefuel inlet tube 15, and an inner surface of the adjustingtube 40 is directly engaged with at least a part of the outer surface of theupper section 42c of theexternal bush fuel filter assembly 42. - It is also possible (not shown in the drawing) to have made both, the
fuel inlet tube 15 and the adjustingtube 40, made of one piece by providing thefuel inlet tube 15 with a step, whereby that part of thefuel inlet tube 15, which is arranged below the step, has a smaller diameter than that part of thefuel inlet tube 15, which is arranged above the step, and whereby that part of thefuel inlet tube 15, which is arranged below the step, acts as theadjusting tube 40. - The subject matters of the invention have the advantages, beyond the advantages already described, that they are better protected against aggressive fuel, that they show a simplified shape, and that they are of reduced dimensions, compared with the respective subject matters of the prior art, in each case.
- A further advantage of the adjusting
fuel filter assembly 42 is that theinternal filter material 42d also has dampening properties. Pressure pulsations and drops of pressure, occurring with the fuel pressure, when the fuel is passing through thefilter material 42d, is reduced and minimized significantly by using saidinternal filter material 42d.
Claims (9)
- Adjusting fuel filter assembly for an injection valve, comprising:- an external bush (42c, 42c') including a central longitudinal axis (L') and a circumferential step (42e) being arranged orthogonal to said axis (L'), said circumferential step (42e) segmenting the external bush (42c, 42c') into an upper section (42c) and into a lower section (42c'), whereby an outer diameter of the upper section (42c) is greater than an outer diameter of the lower section (42c'), and- a filter material (42d) being of a stainless material,characterized in that
the external bush (42c, 42c') has a circumferential sidewall surrounding a cavity and the filter material (42) is a sintered material or a wire mesh being arranged within at least a part of said lower section (42c') within the cavity. - Adjusting fuel filter assembly according to claim 1, characterized in that the external bush (42c, 42c') is made of stainless steel.
- Adjusting fuel filter assembly according to claim 1 or 2, characterized in that the filter material (42d) is sintered material which is made from stainless steel powder, plastic powder or ceramic powder.
- Adjusting fuel filter assembly according to one of the preceding claims, characterized in that the fuel filter assembly is operable to filter impurities in the range between 2 µm and 60 µm by means of the filter material (42d).
- Adjusting fuel filter assembly according to one of the preceding claims, being operable to reduce pressure pulsations by means of the filter material (42d).
- Injection valve comprising- a central longitudinal axis (L),- a fuel inlet tube (15) with an inner surface,- an actuator unit (6), and- a valve assembly (4) including a valve needle (13),characterized by an adjusting fuel filter assembly (42) according to one of the preceding claims,- whereby at least a part of the upper section (42c) of the external bush (42c, 42c') is either directly or indirectly engaged with said inner surface of the fuel inlet tube (15).
- Injection valve according to claim 6, characterized in that the engagement of the external bush (42c, 42c') with the inner surface of the fuel inlet tube (15) is given by an adjusting tube (40) arranged within the fluid inlet tube (15) and which comprises the adjusting fuel filter assembly (42), whereby the inner surface of the fluid inlet tube (15) is directly engaged with an outer surface of the adjusting tube (40), and whereby an inner surface of the adjusting tube (40) is directly engaged with said part of the upper section (42c) of the external bush (42c, 42c').
- Injection valve according to claim 6, characterized in that the fuel inlet tube (15) is provided with a step, whereby the engagement of the external bush (42c, 42c') with the inner surface of the fuel inlet tube (15) takes place below the step, seen in a direction towards the needle (13), so that that part of the fuel inlet tube (15), which is arranged below said step, acts as an adjusting tube (40).
- Injection valve according to any of claims 6 to 8, characterized in that the engagement of the external bush (42c, 42c') is made by interference.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20100175059 EP2426351B1 (en) | 2010-09-02 | 2010-09-02 | Adjusting fuel filter assembly and injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20100175059 EP2426351B1 (en) | 2010-09-02 | 2010-09-02 | Adjusting fuel filter assembly and injection valve |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2426351A1 EP2426351A1 (en) | 2012-03-07 |
EP2426351B1 true EP2426351B1 (en) | 2014-11-12 |
Family
ID=43243194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20100175059 Active EP2426351B1 (en) | 2010-09-02 | 2010-09-02 | Adjusting fuel filter assembly and injection valve |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2426351B1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013225840A1 (en) | 2013-12-13 | 2015-06-18 | Robert Bosch Gmbh | Fuel injector |
DE102013225834A1 (en) | 2013-12-13 | 2015-06-18 | Robert Bosch Gmbh | Fuel injector |
DE102013225829A1 (en) | 2013-12-13 | 2015-06-18 | Robert Bosch Gmbh | Fuel injector |
DE102013225817A1 (en) | 2013-12-13 | 2015-06-18 | Robert Bosch Gmbh | Fuel injector |
DE102013225812A1 (en) | 2013-12-13 | 2015-06-18 | Robert Bosch Gmbh | Fuel injector |
DE102013225820A1 (en) | 2013-12-13 | 2015-06-18 | Robert Bosch Gmbh | Fuel injector |
DE102014226003A1 (en) | 2014-12-16 | 2016-06-16 | Robert Bosch Gmbh | Fuel injector |
DE102014225994A1 (en) | 2014-12-16 | 2016-06-16 | Robert Bosch Gmbh | Fuel injector |
DE102014225999A1 (en) | 2014-12-16 | 2016-06-16 | Robert Bosch Gmbh | Fuel injector |
DE102015226528A1 (en) | 2015-12-22 | 2017-06-22 | Robert Bosch Gmbh | Fuel injector |
DE102015226515A1 (en) | 2015-12-22 | 2017-06-22 | Robert Bosch Gmbh | Fuel injector |
DE102015226533A1 (en) | 2015-12-22 | 2017-06-22 | Robert Bosch Gmbh | Fuel injector |
DE102015226541A1 (en) | 2015-12-22 | 2017-06-22 | Robert Bosch Gmbh | Fuel injector |
US10060401B2 (en) | 2016-04-22 | 2018-08-28 | Caterpillar Inc. | Fuel inlet filter for fuel injectors |
DE102016226135A1 (en) | 2016-12-23 | 2018-06-28 | Robert Bosch Gmbh | Fuel injector |
DE102016226142A1 (en) | 2016-12-23 | 2018-06-28 | Robert Bosch Gmbh | Fuel injector |
DE102020214154A1 (en) | 2020-11-11 | 2022-05-12 | Robert Bosch Gesellschaft mit beschränkter Haftung | fuel injector |
DE102020215215A1 (en) | 2020-12-02 | 2022-06-02 | Robert Bosch Gesellschaft mit beschränkter Haftung | fuel injector |
DE102020215217A1 (en) | 2020-12-02 | 2022-06-02 | Robert Bosch Gesellschaft mit beschränkter Haftung | fuel injector |
DE102020215218A1 (en) | 2020-12-02 | 2022-06-02 | Robert Bosch Gesellschaft mit beschränkter Haftung | fuel injector |
DE102020215621A1 (en) | 2020-12-10 | 2022-06-15 | Robert Bosch Gesellschaft mit beschränkter Haftung | fuel injector |
DE102020215794A1 (en) | 2020-12-14 | 2022-06-15 | Robert Bosch Gesellschaft mit beschränkter Haftung | fuel injector |
DE102022210875A1 (en) | 2022-10-14 | 2024-04-25 | Robert Bosch Gesellschaft mit beschränkter Haftung | Fuel injector |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1252438B1 (en) * | 2000-02-02 | 2007-04-11 | Siemens Automotive Corporation | Combined filter and adjuster for a fuel injector |
EP1296057B1 (en) * | 2001-09-19 | 2011-01-05 | Filtertek Inc. | Integrated fuel filter and calibration tube for a fuel injector |
EP1806497B1 (en) * | 2006-01-10 | 2010-11-10 | Continental Automotive GmbH | Injector |
DE102007049963A1 (en) * | 2007-10-18 | 2009-04-23 | Robert Bosch Gmbh | Fuel injector |
-
2010
- 2010-09-02 EP EP20100175059 patent/EP2426351B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2426351A1 (en) | 2012-03-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2426351B1 (en) | Adjusting fuel filter assembly and injection valve | |
EP2333297B1 (en) | Valve assembly for an injection valve and injection valve | |
EP2535552B1 (en) | Valve assembly for an injection valve and injection valve | |
EP2000662B1 (en) | Adjusting and filter arrangement for an injection valve and injection valve | |
EP3004623B1 (en) | Filter for a fluid injection valve, fluid injection valve and method for producing a filter for a fluid injection valve | |
EP2602476A1 (en) | Valve assembly means for an injection valve and injection valve | |
US7909270B2 (en) | Valve assembly for an injection valve and injection valve | |
EP2246554B1 (en) | Valve assembly for an injection valve and injection valve | |
EP2706220B1 (en) | Valve assembly for an injection valve and injection valve | |
KR101857463B1 (en) | Valve assembly for an injection valve, injection valve and method for assembling a valve assembly of an injection valve | |
EP2811151A1 (en) | Filter for a fuel injection valve, fuel injection valve and method for producing a filter for a fuel injection valve | |
EP1995447B1 (en) | Valve assembly for an injection valve and injection valve | |
EP2149699B1 (en) | Fuel injector | |
EP2375051A1 (en) | Valve assembly for an injection valve and injection valve | |
EP2466109A1 (en) | Valve assembly for an injection valve and injection valve | |
EP2354531A1 (en) | Valve assembly for an injection valve and injection valve | |
EP2080895B1 (en) | Thermal compensation arrangement and injection valve | |
US20210355899A1 (en) | Filter for a Fluid Injection Valve and a Fluid Injection Valve | |
EP2426350A1 (en) | Valve assembly for an injection valve and injection valve | |
EP2363595A1 (en) | Valve assembly for an injection valve and injection valve | |
EP2439400A1 (en) | Valve assembly for an injection valve and injection valve | |
EP2653711A1 (en) | Valve assembly for an injection valve and injection valve | |
EP2067981A1 (en) | Valve assembly for an injection valve and injection valve | |
EP2518304B1 (en) | Fuel injector and fuel-injection system | |
EP1865194B1 (en) | Method for adjusting an injection valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME RS |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20120907 |
|
17Q | First examination report despatched |
Effective date: 20121114 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20140521 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 695936 Country of ref document: AT Kind code of ref document: T Effective date: 20141115 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602010020091 Country of ref document: DE Effective date: 20141224 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20141112 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 695936 Country of ref document: AT Kind code of ref document: T Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150212 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150312 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150312 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602010020091 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20150813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150902 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150930 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150902 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150930 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20100902 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602010020091 Country of ref document: DE Owner name: VITESCO TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R084 Ref document number: 602010020091 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602010020091 Country of ref document: DE Owner name: VITESCO TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GMBH, 30165 HANNOVER, DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20230427 AND 20230503 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230530 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20230920 Year of fee payment: 14 Ref country code: CZ Payment date: 20230828 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230928 Year of fee payment: 14 Ref country code: DE Payment date: 20230930 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20230927 Year of fee payment: 14 |