EP2989316A1 - Kolbenpumpe, insbesondere hochdruckpumpe für ein kraftstoffsystem für eine brennkraftmaschine - Google Patents
Kolbenpumpe, insbesondere hochdruckpumpe für ein kraftstoffsystem für eine brennkraftmaschineInfo
- Publication number
- EP2989316A1 EP2989316A1 EP14713093.4A EP14713093A EP2989316A1 EP 2989316 A1 EP2989316 A1 EP 2989316A1 EP 14713093 A EP14713093 A EP 14713093A EP 2989316 A1 EP2989316 A1 EP 2989316A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston pump
- radially
- piston
- outer housing
- inner housing
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 11
- 238000003754 machining Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000005495 investment casting Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002828 fuel tank Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 206010010904 Convulsion Diseases 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 235000012434 pretzels Nutrition 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
- F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/48—Assembling; Disassembling; Replacing
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8046—Fuel injection apparatus manufacture, repair or assembly the manufacture involving injection moulding, e.g. of plastic or metal
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8061—Fuel injection apparatus manufacture, repair or assembly involving press-fit, i.e. interference or friction fit
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8069—Fuel injection apparatus manufacture, repair or assembly involving removal of material from the fuel apparatus, e.g. by punching, hydro-erosion or mechanical operation
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8084—Fuel injection apparatus manufacture, repair or assembly involving welding or soldering
Definitions
- Piston pump in particular high-pressure pump for a Kraftstoffsvstem for an internal combustion engine
- the invention relates to a piston pump according to the preamble of claim 1.
- the piston pump has a comparatively high overall weight.
- Manufacturing costs can be reduced.
- a quantity of material in such areas of the piston pump can be reduced, which are of little importance for the function of the piston pump and less critical for the strength.
- Massively designed elements of the piston pump for example an inner housing core, are preferably (only) in a high-pressure region of the
- Piston pump used Accordingly, comparatively thin-walled elements can be used in a low-pressure region of the piston pump. At the same time, this can result in functional advantages in the operation of the piston pump. Likewise, the number of elements of the piston pump can be reduced, wherein a mounting flange and a lid of the piston pump are integrated into an outer housing shell. This can preferably be done in one piece.
- the piston pump according to the invention has comparatively large space sections which are filled with fuel during operation. This makes it possible that elements or fluid areas within the piston pump can be better hydraulically connected to each other. For example, this relates to a so-called “damper room” and a "step room" of
- Piston pump result. This can cause vapor formation within the
- Piston pump or the outer housing shell a comparatively large volume of fuel, whereby hydraulic pulsations in the low pressure region of the piston pump can be better damped. Furthermore, in operation a substantially uniform and fast
- Heating of a piston and a cylinder liner of the piston pump allows, because the cylinder liner has comparatively few or small-area connecting portions to other elements of the piston pump.
- the piston pump according to the invention can be manufactured with a lower cost of machining.
- Piston pump - especially in the low pressure range - can as
- the invention relates to a piston pump, in particular high-pressure pump for a fuel system for an internal combustion engine, with an inner housing core, to which a cylinder liner is attached (which includes that the inner housing core forms the cylinder liner), and with an outer housing core, to which a cylinder liner is attached (which includes that the inner housing core forms the cylinder liner), and with an outer housing core, to which a cylinder liner is attached (which includes that the inner housing core forms the cylinder liner), and with an outer
- Housing jacket which at least partially encloses the inner housing core from the outside radially.
- at least one radially projecting edge section of the outer housing shell forms at least one part of a fastening flange with which the piston pump can be fastened to a mounting structure.
- the outer housing shell and at least a part of the mounting flange are designed as a common part.
- Housing core can be made from a blank, which requires only about a quarter of the amount of material of a comparable conventional element.
- the radially projecting edge portion is pressed a separate part and with a jacket portion of the housing shell and / or welded.
- This makes it possible to carry out the radially projecting edge portion, in this case the mounting flange, and the outer housing shell made of different materials and / or with different material thicknesses, so that both elements can be optimized for themselves.
- it is thereby possible to increase the rigidity of the mounting flange, whereby the function of the piston pump is improved.
- the housing shell a
- Holding portion which radially inwardly a piston seal and / or radially outer O-ring seal and / or axially outer holds a piston spring. This allows the outer housing shell in a simple way for a
- Attachment of further elements of the piston pump can be used, so that corresponding separate holders can be omitted.
- the piston surrounding the piston radially outside can a working space of the
- the O-ring seal allows the piston pump in total against the mounting structure or an opening of the
- the piston pump is used to seal to the outside.
- the piston spring counteracts a force of an acting on an end portion of the piston cam.
- the mounting portion is welded to a separate part and to a shell portion of the housing shell axially or radially and / or axially or radially compressed with this.
- this makes it possible to attach the mounting portion to another
- the support portion is specifically adapted to its respective function, whereby the piston pump improved overall and weight and material and ultimately costs are saved.
- the outer housing shell is at least partially made by means of plastic deformation, in particular by deep drawing. As a result, the housing shell can be produced in a particularly simple and cost-effective manner. Furthermore, it can be provided that in at least one space section between the outer housing shell on the one hand and the inner
- housing core on the other hand, at least one connected to a low pressure port fluid chamber is formed.
- the inner housing core is at least partially substantially cylindrical or designed as a flat bar, wherein an axis of the cylinder or flat bar is arranged perpendicular to a longitudinal axis of the piston pump.
- the inner housing core is designed substantially as a solid component, which is brought by means of cutting reworking in a desired shape.
- a cylinder liner of the piston pump in the said cylinder or flat bar can be at least partially arranged.
- the cylinder liner is arranged, for example, perpendicular to the axis of the cylinder or flat bar. Due to the - preferably - solid design of the cylinder or flat bar this is particularly well suited for high fuel pressures.
- the cylindrical shape itself may have advantages for the assembly of the inlet valve and the outlet valve.
- Housing core designed substantially as a cylindrical disc, wherein an axis of the cylindrical disc is arranged parallel or even coaxial with a longitudinal axis of the piston pump.
- this makes it possible that hydraulic connections of the piston pump can be arranged in an angle defined to a longitudinal axis of the piston pump.
- the angle can be structurally chosen comparatively arbitrary.
- the thus formed inner housing core can be particularly simple and durable to radially inner
- Piston pump can be improved. Furthermore, it can be provided that the inner housing core is carried out by means of machining.
- the inner housing core is, so to speak, a central element of the piston pump according to the invention. By means of machining, the inner housing core can therefore be designed specifically, whereby the connection to other elements of the
- Piston pump can be improved.
- the manufacture of the piston pump can be made cheaper if the inner casing core is made by a method of metal injection molding (MIM) or by precision casting. Thereby, the number of steps for the production of the inner housing core can be reduced, which can result in cost advantages.
- MIM metal injection molding
- a jacket section of the outer housing jacket is designed substantially as a radially symmetrical polygon in a plane perpendicular to a longitudinal axis of the piston pump.
- the outer housing shell sections partially planar surfaces, on which hydraulic connections of the piston pump can be particularly well arranged.
- the polygon is a hexagon.
- Figure 1 is a simplified diagram for a fuel system for a
- Figure 2 is a partial longitudinal section through a first embodiment of a
- Figure 3 is a partial section along the line III-III of Figure 2;
- Figure 4 is a view similar to Figure 2 of a second embodiment of the piston pump
- Figure 5 is a partial section taken along the line V-V of Figure 4.
- Figure 6 is a view similar to Figure 2 of a third embodiment of the piston pump
- FIG. 7 is a partial section along the line VII-VII of the illustration of Figure 6, wherein a quantity control valve and an outlet, however, are arranged at an angle of 120 °;
- FIG. 8 shows a side view of an outer casing shell of the piston pumps of FIGS. 2 to 6 with a substantially circular casing cross-section;
- Figure 9 is a section along a line IX-IX of Figure 8.
- Figure 10 is a side view of a second embodiment of the outer
- Figure 1 1 is a section along a line Xl-Xl of Figure 10;
- Figure 12 is a longitudinal section through a third embodiment of the outer
- Figure 13 is a partial longitudinal section through a fourth embodiment of the piston pump.
- Figure H is a representation similar to Figure 2 of a fifth embodiment of the piston pump.
- FIG. 1 shows a fuel system 10 for a further not shown
- Fuel tank 12 is fuel via a suction line 14 by means of a
- Pre-feed pump 16 via a low-pressure line 18 and one of an electromagnetic actuator 20 (“solenoid”) operable
- the electromagnetic actuator 20 is controlled by a control and / or regulating device 42.
- quantity control valve 22 may also be formed as a structural unit with the piston pump 24, as in the following figures 2 to
- the quantity control valve 22 may be a forcedly openable inlet valve of the piston pump 24.
- the prefeed pump 16 delivers fuel from the fuel tank 12 into the low pressure line 18.
- the mass control valve 22 may be closed and opened in response to a respective demand for fuel. As a result, the amount of fuel delivered into the high-pressure accumulator 28 is influenced.
- the fuel is for example gasoline or diesel fuel.
- FIG. 2 shows a first embodiment of the piston pump 24 for the
- Fuel system 10 of Figure 1 in longitudinal section.
- the piston pump 24 is arranged at least partially rotationally symmetrical about a vertical longitudinal axis 44 in the drawing.
- the piston pump 24 has in an intermediate region of the drawing an inner solid housing core 46, which in
- the piston pump 24 has a substantially cup-shaped thin-walled outer housing shell 50 which, among other things, encloses the inner housing core 46 from radially outside.
- the inner housing core 46 of the piston pump 24 according to Figure 2 is made of a solid material by machining and hydraulically sealed to a radially inner portion of the outer housing shell 50.
- the inner housing core 46 and the outer housing shell 50 together form a housing (not numbered), on which further elements and / or housing parts of the piston pump 24 are arranged, as will be explained below.
- the inner housing core 46 and the outer housing shell 50 are pressed together and / or welded together.
- An underside edge portion 52 of the outer casing shell 50 which is lower in the drawing, is bent slightly in a wave-like manner radially outward. As will be shown in FIG. 3, the radially projecting edge portion 52 of the outer housing shell 50 is at two diametrically opposite points at the same time a part of a fastening flange 74, with which the piston pump 24 can be fastened to a mounting structure (not shown).
- Mounting structure is for example a cylinder head of the internal combustion engine.
- an inlet pipe 54 is arranged on the outer housing shell 50 and fluid-tightly connected to the outer housing shell 50.
- the inlet nozzle 54 is rotationally symmetrical to the longitudinal axis 44 of the
- Piston pump 24 executed or arranged.
- the upper portion of the outer housing shell 50 encloses this one
- Pressure damper 56 in this case a diaphragm pressure damper.
- the inner housing core 46 has coaxially with the longitudinal axis 48 in each case a first
- a portion of an outlet nozzle 60 is arranged, in which an outlet valve is integrated.
- a portion of the quantity control valve 22 is arranged in the second bore (in the drawing on the right) in the second bore (in the drawing on the right).
- the outlet port 60 is hydraulically connected to the high pressure line 26 (see FIG. 1).
- the mass control valve 22 and the outlet port 60 are at the inner
- Cylinder sleeve 32 radial openings 32 a and 32 b which the hydraulically formed in the cylinder liner 32 working space 25 with the
- Low pressure port 58 is hydraulically connected.
- An existing in the drawing below the inner housing core 46 space portion forms a so-called stepped space 63.
- the inner housing core 46 has radial in a the mass control valve 22 facing axial end portion
- Holes 57 a and 57 b which hydraulically connect an inlet of the quantity control valve 22 with the damper chamber 62 and with the step room 63.
- the multi-part holding section 65 comprises a first holding section designed as a seal carrier 64, a second holding section designed as a seal holder 66, and an inner holding section
- the seal carrier 64, the seal holder 66 and the inner support portion 68 are each also with respect to the
- the multi-part support portion 65 is part of a "customer connection" by means of which the piston pump 24 can be accommodated in the above-mentioned mounting structure.
- the seal carrier 64, the seal holder 66, and the inner holder portion 68 are manufactured by using stamped bent sheets (deep-drawn parts). Because these elements are the
- Step room 63 limit which is a comparatively low
- the seal holder 66 is designed in a radially inner region as an annular disc, wherein portions of the seal carrier 64 and the inner support portion 68 protrude through a centrally disposed in the seal holder 66 hole.
- a housing seal 70 which is designed here as an O-ring seal arranged.
- the circumferential shape of the seal carrier 64 together with a radially outer edge portion of the seal holder 66 forms a radially encircling groove, in which the housing seal 70 is held in a form-fitting manner.
- the seal carrier 64 is lower in FIG.
- the integral piston 30 has essentially two diameters (without reference numerals). In an axially middle region of the piston 30, the piston 30 has a comparatively large diameter, which substantially corresponds to an inner diameter of the cylinder liner 32. In one of the working space 25 facing end portion and in a lower end portion in the drawing of the piston 30, this each has a reduced diameter.
- the lower end portion of the piston 30 is radially enclosed by a piston seal 76 held by the seal carrier 64, so that leakage of fuel from the piston pump 24 into the mounting structure, or vice versa leakage of liquid media
- Quantity control valve 22 and the exhaust valve - fuel are conveyed from the working space 25 in the high-pressure line 26 under pressure.
- Edge portion 52 of the outer housing shell 50 is formed as a mounting flange 74.
- the mounting flange 74 has two circular holes
- the mounting flange 74 is fluid-tightly connected to the seal carrier 64, in the present case welded. This will increase the mechanical stability of the
- Mounting flange 74 additionally improved.
- FIG. 4 shows a second embodiment of the piston pump 24.
- the inner housing core 46 of the piston pump 24 according to FIG. 4 is produced by a method of metal powder injection molding.
- the inner housing core 46 of the piston pump 24 according to FIG. 4 is produced by a method of metal powder injection molding. In a similar way, the inner
- Housing core 46 may alternatively be executed by investment casting.
- a lower end portion of the inner housing core 46 in FIG. 4 is concentric with the longitudinal axis 44 to a piston 30 radially
- the inner housing core 46 has a particularly compact construction. This results in a particularly small space or a particularly small mass for the inner housing core 46 and thus for the piston pump 24 in total.
- the piston pump 24 can be constructed with fewer components, with a Zerspanungsaufwand is eliminated or minimized.
- Figures 6 and 7 together describe a third embodiment of the piston pump 24, including a modification.
- the inner housing core 46 according to FIGS. 6 and 7 is designed substantially as a cylindrical disk 82, wherein an axis of the cylindrical disk 82 is arranged parallel even concentrically to the longitudinal axis 44 of the piston pump 24.
- the cylindrical disc 82 is, similar to the embodiment of the inner housing core 46 of Figure 2, made by machining.
- FIG 7 shows a radial sectional view of the piston pump 24 similar to a plan view to the illustration according to FIG 6. However, in contrast to the figure 6, the quantity control valve 22 and the outlet port 60 at an angle 86 to each other.
- the angle 86 is defined radially about the longitudinal axis 44 and is presently 120 degrees.
- a radially outer flattening 88 of the cylindrical disc is visible in FIG.
- the flattening 88 allows a hydraulic connection between the damper space 62 and the step room 63.
- angle 86 can also have a value other than 120 degrees within comparatively wide limits. This is made possible in particular by the embodiment of the inner housing core 46 as a cylindrical disk 82.
- FIGS. 8 and 9 together show an embodiment of the outer casing shell 50 of the piston pump 24 with a substantially circular casing cross-section.
- the radially projecting edge section 52 of the outer housing shell 50 is designed as a fastening flange 74.
- this has two flats 90 on.
- the flats 90 allow in particular a defined arrangement or assembly of the inner Housing core 46 and the quantity control valve 22 and the outlet port 60 on the outer housing shell 50th
- Figures 10 and 1 1 together show a further embodiment of the outer housing shell 50 of the piston pump 24 with a substantially hexagonal shell cross-section. This results in the arrangement of the quantity control valve 22 and the outlet nozzle 60th
- the piston pump 24, the outer housing shell 50 is designed as a radially symmetrical polygon, in particular as a square, pentagon or octagon.
- FIG. 12 shows a further embodiment of the outer housing jacket 50 of the piston pump 24 with a fastening flange 74 designed as a prong.
- the fastening flange 74 is a separate part in FIG. 12 and is rigidly connected to the radially projecting edge section 52 of the outer housing shell 50, which is relatively short in the present case, as will be explained below.
- lower radially inner portion of the outer housing shell 50 is complementary to the
- Seal carrier 64 arranged in a modified embodiment with respect to the above-described figures.
- the outer housing shell 50 and the seal carrier 64 are both in
- the seal carrier 64 in the drawing upwardly axially projecting collar 94, with which it is connected to the outer housing shell 50.
- the outer housing shell 50 is also in the case of FIG.
- Seal carrier 64 at least partially by a plastic
- the production of the elements shown in Figure 12 is carried out such that in a first step, the mounting flange 74 by means of a press connection 96 radially outward with a lower in the drawing shell portion of the outer housing shell 50 is connected. In a second step, a radially encircling weld 98 between the radially projecting from below
- Edge portion 52 of the outer housing shell 50 and a radially inner portion of the mounting flange 74 made.
- Housing jacket 50 are connected.
- the axially projecting collar 94 of the seal carrier 64 is pressed with a lower radial inner portion of the outer housing jacket 50 in the drawing.
- the press connection produced in this way is then additionally secured by means of a preferably radially circumferential welded connection.
- the seal carrier 64 has a circular opening 100 arranged centrally with respect to the longitudinal axis 44, through which the piston 30 can protrude (not shown).
- FIG. 13 shows a fourth embodiment of the piston pump 24.
- the fastening flange 74 - similar to FIGS. 2 to 11 - is embodied essentially by the radially projecting edge section 52 of the outer housing shell 50.
- the seal carrier 64 is presently connected to a lower axial end portion of the outer housing shell 50 in the drawing, for which the radially projecting edge portion 52 has an additional circumferential characteristic, see the drawing.
- the connection is by welding, for example by means of a radially encircling I-seam or
- Housing jacket 50 also possible by means of a through-welding.
- FIG. 14 shows a fifth embodiment of the piston pump 24.
- the seal carrier 64 has a collar 94 that protrudes axially upward in the drawing, by means of which it is connected to a radially inner region of an axial end section of the outer housing jacket 50 is.
- this compound is in a first
- Production step by pressing and is additionally secured in a second manufacturing step by means of a weld For example, this is an I-seam.
- a through-welding is also comparable to FIG. 13 possible.
- the connection between the outer housing shell 50 and the seal carrier 64 is indicated in FIG. 14 by an arrow 102.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310207393 DE102013207393A1 (de) | 2013-04-24 | 2013-04-24 | Kolbenpumpe, insbesondere Hochdruckpumpe für ein Kraftstoffsystem für eine Brennkraftmaschine |
PCT/EP2014/056043 WO2014173603A1 (de) | 2013-04-24 | 2014-03-26 | Kolbenpumpe, insbesondere hochdruckpumpe für ein kraftstoffsystem für eine brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2989316A1 true EP2989316A1 (de) | 2016-03-02 |
EP2989316B1 EP2989316B1 (de) | 2017-05-24 |
Family
ID=50389430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14713093.4A Active EP2989316B1 (de) | 2013-04-24 | 2014-03-26 | Kolbenpumpe, insbesondere hochdruckpumpe für ein kraftstoffsystem für eine brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2989316B1 (de) |
KR (1) | KR20160002824A (de) |
CN (1) | CN105143656A (de) |
DE (1) | DE102013207393A1 (de) |
WO (1) | WO2014173603A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018007058A1 (de) * | 2016-07-08 | 2018-01-11 | Robert Bosch Gmbh | Verfahren zur herstellung einer kraftstoffhochdruckpumpe |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201418661D0 (en) * | 2014-10-21 | 2014-12-03 | Delphi International Operations Luxembourg S.�.R.L. | Pumping Mechanism |
DE102016204128A1 (de) | 2016-03-14 | 2017-09-14 | Robert Bosch Gmbh | Hochdruckpumpe |
DE102018211301A1 (de) * | 2018-07-09 | 2020-01-09 | Robert Bosch Gmbh | Druckdämpfer für eine Kraftstoff-Hochdruckpumpe |
DE102021214628A1 (de) * | 2021-12-17 | 2023-06-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Hochdruckpumpe für ein Kraftstoffsystem einer Brennkraftmaschine |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1714236A (zh) * | 2003-01-09 | 2005-12-28 | 株式会社博世汽车*** | 燃料供给用泵 |
DE10345725B4 (de) * | 2003-10-01 | 2017-01-05 | Robert Bosch Gmbh | Kraftstoff-Hochdruckpumpe |
CN100587252C (zh) * | 2005-09-29 | 2010-02-03 | 株式会社电装 | 具有柱塞的流体泵及其壳体的整体铸造方法 |
DE102007038984A1 (de) * | 2007-08-17 | 2009-02-19 | Robert Bosch Gmbh | Kraftstoffpumpe für ein Kraftstoffsystem einer Brennkraftmaschine |
JP2010037997A (ja) * | 2008-08-01 | 2010-02-18 | Denso Corp | 燃料供給ポンプ |
JP5081869B2 (ja) * | 2009-06-18 | 2012-11-28 | 日立オートモティブシステムズ株式会社 | 高圧燃料供給ポンプ |
WO2013018129A1 (ja) * | 2011-08-01 | 2013-02-07 | トヨタ自動車株式会社 | 燃料ポンプ |
FI124006B (fi) * | 2011-09-30 | 2014-01-31 | Waertsilae Finland Oy | Polttoaineenruiskutuspumppujärjestely ja menetelmä polttomoottorin käyttämiseksi |
-
2013
- 2013-04-24 DE DE201310207393 patent/DE102013207393A1/de not_active Withdrawn
-
2014
- 2014-03-26 EP EP14713093.4A patent/EP2989316B1/de active Active
- 2014-03-26 KR KR1020157030605A patent/KR20160002824A/ko not_active Application Discontinuation
- 2014-03-26 CN CN201480023182.2A patent/CN105143656A/zh active Pending
- 2014-03-26 WO PCT/EP2014/056043 patent/WO2014173603A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2014173603A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018007058A1 (de) * | 2016-07-08 | 2018-01-11 | Robert Bosch Gmbh | Verfahren zur herstellung einer kraftstoffhochdruckpumpe |
US10801454B2 (en) | 2016-07-08 | 2020-10-13 | Robert Bosch Gmbh | Method for producing a high-pressure fuel pump |
Also Published As
Publication number | Publication date |
---|---|
WO2014173603A1 (de) | 2014-10-30 |
KR20160002824A (ko) | 2016-01-08 |
CN105143656A (zh) | 2015-12-09 |
DE102013207393A1 (de) | 2014-10-30 |
EP2989316B1 (de) | 2017-05-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2989316B1 (de) | Kolbenpumpe, insbesondere hochdruckpumpe für ein kraftstoffsystem für eine brennkraftmaschine | |
EP3230579B1 (de) | Kraftstoff-hochdruckpumpe mit einem kolben | |
EP2867529B1 (de) | Kolben-kraftstoffpumpe | |
WO2014170105A1 (de) | Kolbenpumpe, insbesondere kraftstoff-hochdruckpumpe | |
DE102013225834A1 (de) | Brennstoffeinspritzventil | |
EP2235355B1 (de) | Kraftstoffinjektor | |
WO2012163759A1 (de) | Düsenbaugruppe für einen kraftstoffinjektor sowie kraftstoffinjektor | |
EP3152434B1 (de) | Kraftstoff-hochdruckpumpe, mit einem auslassventil mit einer ventilkugel und einem ventilkörper | |
WO2014198442A1 (de) | Kraftstoff-hochdruckpumpe für ein kraftstoffsystem für eine brennkraftmaschine | |
EP2981702B1 (de) | Kraftstoff-kolbensteckpumpe mit einem gehäuse, mindestens einem in dem gehäuse angeordneten axial bewegbaren kolben, und einem koppelabschnitt | |
WO2006131420A1 (de) | Hochdruckspeicherraumkörper mit hochdruckdrosseln | |
DE112020000261T5 (de) | Metalldämpfer mit Metallmembran und damit versehene Kraftstoffpumpe | |
DE102014212631A1 (de) | Kraftstoff-Hochdruckpumpe, mit einem Auslassventil mit einem Ventilkörper und einer Ventilkugel | |
DE102015226528A1 (de) | Brennstoffeinspritzventil | |
DE102018206916A1 (de) | Kolben-Kraftstoffhochdruckpumpe | |
WO2014079625A1 (de) | Ventileinrichtung zur verwendung in einem kraftstoffeinspritzsystem | |
EP2905669B1 (de) | Druckregelventil | |
WO2018007047A1 (de) | Kraftstoffhochdruckpumpe | |
EP3034856B1 (de) | Brennstoffeinspritzventil | |
DE102010029123A1 (de) | Kraftstoffinjektor mit hydraulischer Kopplereinheit | |
WO2017050463A1 (de) | Elektromagnetisch betätigbares einlassventil und hochdruckpumpe mit einlassventil | |
WO2017012730A1 (de) | Kraftstoffinjektor und verfahren zur herstellung eines kraftstoffinjektors | |
EP4377565A1 (de) | Kraftstoff-hochdruckpumpe | |
DE102022210875A1 (de) | Brennstoffeinspritzventil | |
WO2023006289A1 (de) | Kraftstoff-hochdruckpumpe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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: 20151124 |
|
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 RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20170224 |
|
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 RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 896144 Country of ref document: AT Kind code of ref document: T Effective date: 20170615 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502014003948 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20170524 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20170524 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: 20170825 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: 20170524 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: 20170824 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: 20170524 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: 20170524 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20170924 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: 20170524 Ref country code: RS 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: 20170524 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: 20170524 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: 20170524 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: 20170824 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ 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: 20170524 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: 20170524 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: 20170524 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: 20170524 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: 20170524 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502014003948 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20170524 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: 20170524 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 5 |
|
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: 20180227 |
|
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: 20170524 |
|
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: 20170524 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
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: 20170524 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20180331 |
|
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: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180326 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180326 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20180331 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180331 |
|
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: 20170524 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20170524 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20170524 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: 20140326 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: 20170524 |
|
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: 20170524 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 896144 Country of ref document: AT Kind code of ref document: T Effective date: 20190326 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20190326 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230320 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20230323 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20230331 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240527 Year of fee payment: 11 |