EP3298263A1 - Kraftstoffhochdruckpumpe - Google Patents
KraftstoffhochdruckpumpeInfo
- Publication number
- EP3298263A1 EP3298263A1 EP16714902.0A EP16714902A EP3298263A1 EP 3298263 A1 EP3298263 A1 EP 3298263A1 EP 16714902 A EP16714902 A EP 16714902A EP 3298263 A1 EP3298263 A1 EP 3298263A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seal carrier
- housing
- fuel pump
- capacitor discharge
- connecting portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
-
- 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
- F02M59/025—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 a single piston
-
- 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
- F02M59/442—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 means preventing fuel leakage around pump plunger, e.g. fluid barriers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0448—Sealing means, e.g. for shafts or housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/20—Other positive-displacement pumps
- F04B19/22—Other positive-displacement pumps of reciprocating-piston type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/143—Sealing provided on the piston
-
- 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
-
- 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
- F02M59/04—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 special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
- F02M59/06—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 special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
Definitions
- the invention relates to a fuel pump, in particular a
- High-pressure fuel pump with a piston, at whose end portion facing a drive radially surrounding the piston
- Sealing device is arranged.
- the invention further relates to a method for producing a fuel pump, in particular a high-pressure fuel pump.
- fuel pumps are used for the transport of fuel.
- the fuel pumps are supplemented by high-pressure fuel pumps, which compress the fuel supplied, for example, by an electric fuel pump with a pre-pressure in sufficient quantity to the level required for high-pressure fuel injection.
- Such fuel pumps usually have at least one piston, which can be moved axially by means of a drive formed by a cam or an eccentric disc.
- a required restoring force of the piston is generated by means of a compression spring.
- a compression spring For example, an acted upon by a compression spring spring plate is pressed onto an end portion of the piston.
- Piston seal a first fuel-side portion of the piston from a second oil-side portion of the piston separate, whereby a mixing of fuel and oil is kept at least low.
- a piston seal which is also referred to as a low-pressure seal, is usually of one type
- Seal carrier is connected to the housing of the high-pressure fuel pump in such a manner that a sealing of the oil-side portion of the fuel pump from a fuel-side portion is reliable, wherein the seal carrier is a static seal against the low pressure seal and against the housing.
- Seal carrier are realized, for example, as deep-drawn elements, which enter via a laser weld a cohesive connection with the housing of the high-pressure fuel pump and thereby between oil and
- the object of the invention is to provide a fuel pump whose production allows improved cycle times when joining or welding the seal carrier and makes an improved error detection in the manufacturing process possible.
- Fuel pump housing by means of capacitor discharge welding reduces the cycle time in the manufacture of the fuel pump, as by means of the capacitor discharge welding a faster and more precise cohesive connection between the seal carrier and the housing can be produced. In particular, arise in the capacitor discharge welding in comparison to
- Leakage test can be determined.
- the welding process can already be monitored during production.
- the seal carrier comprises a substantially axially extending first portion which the
- Sealing means radially surrounds, adjacent to the first portion and extending substantially radially outwardly second portion, and adjacent to the second portion radially outer
- Connecting portion which communicates with the housing of the fuel pump
- Capacitor discharge welding is bonded cohesively.
- the connecting portion of the seal carrier with respect to the axis of the piston at an angle of about 30 ° to 60 °, preferably from about 40 ° to 50 °.
- the radial extent of this connecting portion is about 2 to 4 mm, preferably about 3 mm.
- the second portion of the seal carrier is connected by means of a pressure with the housing of the fuel pump. In this embodiment, a particularly stable connection between the seal carrier and the housing can be achieved.
- the connecting portion of the seal carrier is materially connected to a radially circumferential shoulder of the housing to the housing by means of capacitor discharge welding.
- the provision of the radially circumferential shoulder on the housing allows for improved production of the fuel pump and increases the stability of the integral connection.
- the object is also achieved by a method for producing a fuel pump, the method comprising the following steps:
- Seal carrier by means of a pressure in a radially inner portion of the Housing pressed and it is then carried out at a connecting portion of the seal carrier, the capacitor discharge welding.
- a force and / or a relative movement of the seal carrier to the housing and / or a current profile of the capacitor discharge welding are determined during the capacitor discharge welding.
- the values determined in this way can be used to determine the quality of the
- the determined values are preferably compared with stored values for the force, the relative movement and / or the course of the current.
- Figure 1 is a simplified schematic representation of a fuel system for an internal combustion engine
- FIG. 3 shows an axial sectional view of the radially outer edge region of FIG
- Figure 4 is an axial sectional view of a radially outer edge region of a sealing device and a portion of the housing of a
- Figure 5 is an axial sectional view of a radially outer edge region of a seal carrier and a portion of a housing according to another possible embodiment
- Figure 6 is an axial sectional view of a seal carrier and a housing according to a possible embodiment
- Figure 7 is a schematic representation of a sectional view of a portion of the high-pressure fuel pump during the performance of the KE welding process.
- FIG. 8 shows a simplified flowchart in the production of the
- FIG. 1 shows a fuel system 10 for a further not shown
- Quantity control valve 24 a delivery chamber 26 of a high-pressure fuel pump 28 is supplied.
- the quantity control valve 24 may be a forcibly openable inlet valve of the high-pressure fuel pump 28.
- the high-pressure fuel pump 28 is designed as a piston pump, wherein a piston 30 can be moved vertically by means of a cam disk 32 ("drive") in the drawing. Hydraulically between the delivery chamber 26 and an outlet 36 of the high-pressure fuel pump 28, a drawn in the figure 1 as a spring-loaded check valve outlet valve 40 is arranged, which can open to the outlet 36 out.
- the outlet 36 is at a
- High-pressure line 44 and connected via this to a high-pressure accumulator 46 ("common rail"). Furthermore, a likewise drawn as a spring-loaded check valve pressure relief valve 42 is arranged hydraulically between the outlet 36 and the delivery chamber 26, which can open to the delivery chamber 26 through.
- the pre-demand pump 16 delivers fuel from the fuel tank 12 into the low pressure line 18.
- the quantity control valve 24 may be closed and opened in response to a respective demand for fuel.
- the pumped to the high-pressure accumulator 46 Fuel quantity influenced.
- the electromagnetic actuator 22 is controlled by a control and / or regulating device 48.
- FIG. 2 shows a detail of a high-pressure pump 28, which has a seal carrier 68 of approximately cup-shaped design and a radially outer one
- Section of the seal carrier 68 arranged and designed as a helical spring piston spring 70 includes, which is supported by an end portion of the seal carrier 68. At a lower end in the drawing and the drive facing end portion of the piston 30, a spring plate 72 is pressed, on which an end portion of the piston spring 70 is received.
- a piston seal also referred to as "low-pressure seal" designated as a sealing device 74 which radially encloses the lower second section (which faces the drive) of the piston 30 and one between the two
- housing 50 and the seal carrier 68 existing fluid space ("step room") to the outside to the engine block 53 seals out.
- the piston 30 is displaceable along the longitudinal axis 64 relative to the sealing device 74.
- the sealing device 74 has an overall annular structure.
- the sealing device 74 in FIG. 2 is supported axially upwardly by a holding section 76 which is arranged inside the seal carrier 68 and which likewise has an approximately hat-shaped design.
- the sealing device 74 in FIG. 2 is supported axially downward by a peripheral edge portion of the seal carrier 68 bent radially inwards. It is understood that the sealing device 74 may optionally have a slight axial play within a region defined by the holding section 76 and the said edge section.
- the sealing device 74 is arranged along the longitudinal axis 64 radially outward on the piston 30 and designed substantially rotationally symmetrical.
- Figure 3 shows a part of the substantially radially outward
- Piston at an angle 96 which is approximately 45 ° according to a possible embodiment.
- the angle 96 is in ranges between about 30 ° to 60 °. It is advantageous if the angle 96 is in a range between 40 ° to 50 ° and very particularly advantageous if the angle 96 is approximately 45 ° as shown in FIG.
- Seal carrier 68 and a connecting portion 94 meets, which is around the
- Angle 96 is inclined.
- the solid component has the radius 98.
- the line cross-section is reduced, so that the solid component, in this case the housing 50 of the high-pressure fuel pump 28, similar early as the thinner-walled component, in this case the seal carrier 68, melts and a robust weld arises.
- FIG. 4 shows the same section of the housing 50 of FIG.
- the ring boss 100 is formed on the housing 50 of the high-pressure pump 28 before the welding process.
- Connecting portion 94 is inclined here at an angle 101 of approximately 90 ° about the longitudinal axis 64 of the piston 30. This allows a particularly stable weld, but other angles of the connecting portion 94 are possible. According to another possible embodiment, it may be provided as shown in FIG. 5 to provide on the housing 50 of the high-pressure fuel pump 28 a shoulder 102 on which the capacitor discharge welding takes place, whereby a shortening of the lever arm and a reduction of the load is possible.
- High-pressure fuel pump 28 is additionally pressed, creating a more stable connection is possible.
- the increased contact area must be taken into account when performing the capacitor discharge welding process.
- FIG. 7 shows an arrangement with which the capacitor discharge welding process according to the invention can be carried out.
- the housing 50 of the high-pressure fuel pump 28 is arranged on a first electrode 110.
- a substantially annular second electrode 1 12 is disposed on the connecting portion 94 of the seal carrier 68.
- the connecting portion 94 is formed, for example, as shown in FIG.
- the second electrode 1 12 is designed such that it the seal carrier 68th
- the connecting portion 94 resiliently and / or floating applied with a predetermined force. After the adjustment and / or centering of the seal carrier 68 in the housing 50, the capacitor discharge welding is performed, so that a weld between the connecting portion 94 and the abutting portion of the housing 50 forms.
- FIG. 8 shows, in a flowchart, method steps which, in accordance with a possible embodiment of the method according to the invention, are carried out in the production of the high pressure fuel pump 28.
- the method begins in a step 200, in which the housing 50 of the high-pressure fuel pump 28 is positioned on the first electrode 110.
- the seal carrier 68 is inserted and pre-positioned.
- the second electrode 1 12 is placed and floating stored. Preferably, its own weight is selected such that the force necessary for the welding process to be carried out later is generated.
- a step 203 the arrangement is centered and, in a step 204, the monitoring of the process parameters, in particular the drop-off path, the force and / or the current profile in the execution of the welding process starts.
- a step 205 the capacitor discharge welding takes place, so that the seal carrier 68 in the connecting portion 94 with the housing 50 of the high-pressure fuel pump 28 is materially connected.
- step 206 those monitored in step 204
- Manufacturing process of this high-pressure fuel pump 28 is interrupted and it is declared as a committee. If necessary, an adaptation of some parameters for the welding process. If the monitored process parameters were within the predefinable tolerance ranges, the method ends in a step 208.
- the cycle time in the production of the high-pressure fuel pump 28 is shortened, in particular in the integral connection of the seal carrier 68 with the housing 50 of the high-pressure fuel pump 28. Furthermore, the use of capacitor discharge welding eliminates the need for regular cleaning of the protective glass, which is required, for example, in the laser welding process to ensure faultless welding. With the method according to the invention, a leaky laser weld is not detected only at the tape end test during the leak test carried out there, but by the evaluation of the process parameters can be detected in the production, whether the welding process was successful.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015209539.8A DE102015209539A1 (de) | 2015-05-22 | 2015-05-22 | Kraftstoffhochdruckpumpe |
| PCT/EP2016/057572 WO2016188661A1 (de) | 2015-05-22 | 2016-04-07 | Kraftstoffhochdruckpumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3298263A1 true EP3298263A1 (de) | 2018-03-28 |
| EP3298263B1 EP3298263B1 (de) | 2020-06-10 |
Family
ID=55697196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16714902.0A Active EP3298263B1 (de) | 2015-05-22 | 2016-04-07 | Kraftstoffhochdruckpumpe |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10662940B2 (de) |
| EP (1) | EP3298263B1 (de) |
| JP (1) | JP6516877B2 (de) |
| KR (1) | KR102556113B1 (de) |
| CN (1) | CN107646074B (de) |
| DE (1) | DE102015209539A1 (de) |
| WO (1) | WO2016188661A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112019004550T5 (de) * | 2018-10-19 | 2021-06-17 | Hitachi Astemo, Ltd. | Hochdruckkraftstoffpumpe |
| KR102107462B1 (ko) * | 2018-12-14 | 2020-05-07 | 주식회사 현대케피코 | 고압펌프의 패킹캐리어 변형 방지 구조 |
| DE102020208202A1 (de) | 2020-07-01 | 2022-01-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Kraftstoff-Hochdruckpumpe |
| DE102020208849A1 (de) | 2020-07-15 | 2022-01-20 | Robert Bosch Gesellschaft mit beschränkter Haftung | Kraftstoffpumpe, insbesondere Kraftstoff-Hochdruckpumpe |
| DE102021202359A1 (de) * | 2021-03-11 | 2022-09-15 | Robert Bosch Gesellschaft mit beschränkter Haftung | Kraftstoff-Hochdruckpumpe |
| DE102021208296A1 (de) | 2021-07-30 | 2023-02-02 | Robert Bosch Gesellschaft mit beschränkter Haftung | Kolbenpumpe, insbesondere Kraftstoff-Hochdruckpumpe |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56134413U (de) * | 1981-02-27 | 1981-10-12 | ||
| JPH0666872U (ja) * | 1993-02-19 | 1994-09-20 | 川崎製鉄株式会社 | 積層金属板へ溶接するスタッドの形状 |
| DE10322598A1 (de) * | 2003-05-20 | 2004-12-09 | Robert Bosch Gmbh | Kolbenpumpe, insbesondere Hochdruck-Kraftstoffpumpe |
| DE102004063075B4 (de) * | 2004-12-28 | 2015-11-26 | Robert Bosch Gmbh | Kraftstoff-Hochdruckpumpe für eine Brennkraftmaschine mit einem Stufenkolben und einem Mengensteuerventil |
| DE102007012704A1 (de) * | 2007-03-16 | 2008-09-18 | Robert Bosch Gmbh | Hochdruckpumpe zur Förderung von Kraftstoff mit einer verbesserten Ausbildung der Lageranordnung zur Lagerung der Nockenwelle |
| DE102007038984A1 (de) * | 2007-08-17 | 2009-02-19 | Robert Bosch Gmbh | Kraftstoffpumpe für ein Kraftstoffsystem einer Brennkraftmaschine |
| JP5039507B2 (ja) * | 2007-10-31 | 2012-10-03 | 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およびその製造方法 |
| IT1396142B1 (it) * | 2009-11-03 | 2012-11-16 | Magneti Marelli Spa | Pompa carburante con dispositivo smorzatore perfezionato per un sistema di iniezione diretta |
| IT1396143B1 (it) * | 2009-11-03 | 2012-11-16 | Magneti Marelli Spa | Pompa carburante con ridotta usura di una guarnizione per un sistema di iniezione diretta |
| JP5812684B2 (ja) * | 2011-05-20 | 2015-11-17 | 日本ドライブイット株式会社 | コンデンサ放電型スタッド溶接機の溶接良否判定方法及び判定装置 |
| DE102013205909A1 (de) * | 2013-04-04 | 2014-10-09 | Robert Bosch Gmbh | Kraftstoff-Kolbensteckpumpe mit einem Gehäuse, mindestens einem in dem Gehäuse angeordneten axial bewegbaren Kolben, und einem Koppelabschnitt |
| DE102013206930A1 (de) * | 2013-04-17 | 2014-10-23 | Robert Bosch Gmbh | Kolbenpumpe, insbesondere Kraftstoff-Hochdruckpumpe |
-
2015
- 2015-05-22 DE DE102015209539.8A patent/DE102015209539A1/de not_active Withdrawn
-
2016
- 2016-04-07 CN CN201680029786.7A patent/CN107646074B/zh active Active
- 2016-04-07 KR KR1020177033492A patent/KR102556113B1/ko active Active
- 2016-04-07 JP JP2017560805A patent/JP6516877B2/ja active Active
- 2016-04-07 US US15/576,160 patent/US10662940B2/en active Active
- 2016-04-07 WO PCT/EP2016/057572 patent/WO2016188661A1/de not_active Ceased
- 2016-04-07 EP EP16714902.0A patent/EP3298263B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107646074A (zh) | 2018-01-30 |
| US20180135619A1 (en) | 2018-05-17 |
| CN107646074B (zh) | 2020-05-19 |
| JP6516877B2 (ja) | 2019-05-22 |
| US10662940B2 (en) | 2020-05-26 |
| KR20180009749A (ko) | 2018-01-29 |
| JP2018514702A (ja) | 2018-06-07 |
| EP3298263B1 (de) | 2020-06-10 |
| DE102015209539A1 (de) | 2016-11-24 |
| KR102556113B1 (ko) | 2023-07-18 |
| WO2016188661A1 (de) | 2016-12-01 |
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