EP3592968A1 - Rohrleitungsabschnitt einer common-rail-leitung und verfahren zu dessen herstellung - Google Patents
Rohrleitungsabschnitt einer common-rail-leitung und verfahren zu dessen herstellungInfo
- Publication number
- EP3592968A1 EP3592968A1 EP18707683.1A EP18707683A EP3592968A1 EP 3592968 A1 EP3592968 A1 EP 3592968A1 EP 18707683 A EP18707683 A EP 18707683A EP 3592968 A1 EP3592968 A1 EP 3592968A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- adapter
- opening
- pipe
- peripheral surface
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000001746 injection moulding Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims description 23
- 238000005245 sintering Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229940125898 compound 5 Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
- F02M2200/8061—Fuel injection apparatus manufacture, repair or assembly involving press-fit, i.e. interference or friction fit
Definitions
- the present invention relates to a pipe section of a common rail line, which is provided for high pressure injection of a fluid and two methods for producing a pipe section, in particular for the production of the proposed pipe section.
- Common rail lines have long been known, in particular as part of injection systems for a fuel in internal combustion engines, in particular in diesel engines.
- common rail lines are subjected to high pressures, through which the fluid is transported into the combustion chambers of the internal combustion engines.
- Common rail lines are usually connected to a plurality of injection nozzles, via which in particular a plurality of combustion chambers are supplied with fluid.
- pressures of at least 200 bar, in particular of at least 1,000 bar and preferably of at least 2,000 bar are achieved, which act on the common rail line. It is mandatory to ensure a tightness of the common rail line permanently.
- a common rail line comprises, in particular, at least one first pipe with a first pipe and one or more adapters, one or more injectors being fluidly connected to the first pipe via each adapter.
- First pipe and the adapter are usually connected by solder joints or welds cohesively together. About the solder joint or the weld while the strength and tightness of the connection of adapter and tube is guaranteed.
- the object of the invention is therefore to at least partially solve the problems existing with reference to the prior art and in particular to provide a pipe tion section of a common rail line and to provide a method for producing a pipe section in which a cohesive connection of adapter and first pipe via a soldering or welding process is not required to ensure on the one hand the strength of the connection and on the other hand, the tightness of the connection ,
- a pipe section contributes to a common rail line, which is provided for high pressure injection of a fluid.
- the pipe section has at least a first pipe and an adapter.
- the first tube has a wall and extends at least along an axial direction.
- the wall has an inner circumferential surface and an outer peripheral surface and encloses a first conduit.
- the adapter has a fitting and a second tube, wherein the fitting extends annularly around the first tube and is disposed on the outer peripheral surface.
- a second line formed by the second tube is fluidly connected via a first opening in the first tube and a second opening in the connecting piece with the first line.
- At least the adapter is made by a metal powder injection molding process.
- Metal powder injection molding (MIM) metal injection molding has been known for a long time.
- the metal powder injection molding process comprises at least the following steps: feedstock production, injection molding, debindering and sintering.
- the sintered component can then be subjected to an aftertreatment.
- feedstock production is a fine metal powder, eg. As iron powder (and possibly additional other powdered additives, possibly nickel or chromium, etc.) mixed with an organic binder to a homogeneous mass that can be processed in an injection molding process analogous to the plastic processing.
- This metal / plastic mixture is called Feedstock.
- the connecting piece of the adapter with the outer peripheral surface of the first tube forms an at least non-positive connection.
- Positive connections require a normal force on the surfaces to be joined together. Their mutual displacement is prevented, as long as the counter-force caused by the static friction is not exceeded.
- This z. B the adapter produced by a metal powder injection molding, wherein the first tube is made independently of the adapter and possibly by other methods.
- the sintered component here at least the adapter, in particular has a residual porosity of at most 5%, preferably of at most 3%, and is gas-tight.
- the component shrinks by at least 10% and at most 20%, in particular between 12% and 16%. In the present case, this shrinkage is used to produce the frictional connection.
- the required dimensions of the components, in particular of the adapter or of the connection piece and in particular for the injection molding are designed with regard to the shrinkage during sintering.
- Cohesive connections are all compounds in which the connection partners are held together by atomic or molecular forces. They are at the same time non-detachable connections, which can only be separated by destruction of the connecting means.
- the adapter and the first tube are connected to each other in addition to the at least non-positive connection at least by a positive connection.
- the positive connection only serves an alignment of the components to each other during the manufacturing process.
- the required strength of the connection in the sintered assembly, consisting of the first tube and the adapter is ensured exclusively by the at least frictional (possibly additionally cohesive) connection.
- Form-fitting connections are created by the interaction of at least two connection partners. As a result, the connection partners can not solve without or with interrupted power transmission. In other words, in the case of a positive connection, one connection partner gets in the way of the other.
- the positive connection is formed by a projection on the adapter, which surrounds the second opening and extends into the first opening.
- the adapter can be pushed onto the first tube before sintering.
- Over the projection and the first opening of the adapter can be positioned in a predetermined position to the first tube.
- a maximum clearance between the projection and the first opening is at most 0.5 millimeter, preferably at most 0.2 millimeter, so that accurate positioning can be ensured.
- the play is formed in particular by the different diameters of the projection and the first opening. For a game of no more than 0.5 millimeters, the diameters differ by no more than 0.5 millimeters.
- the adapter and the first tube are fluid-tightly connected to each other via the outer circumferential surface, wherein the fluid-tight seal exclusively Lich on the non-positive connection (or additionally cohesive connection) between the first tube and the connector is ensured.
- the adapter and the first tube are fluid-tightly connected to each other via the outer circumferential surface, wherein the fluid-tight seal is ensured via the non-positive connection and additionally via an additional sealing means.
- solder material is used as an additional sealant, which is applied in particular in the region of the frictional connection prior to sintering.
- solder material in particular only the sealing effect is ensured.
- the majority of the required strength of the connection of the adapter and the first tube is ensured here in particular via the non-positive connection (or via the additional cohesive connection of the adapter and the first tube).
- the first tube and the adapter are produced as a (common, one-piece) assembly by a metal powder injection molding process, wherein the first tube and the adapter are materially connected to each other.
- the cohesive connection is formed by the fact that the first tube and the adapter are already made in the injection molding as a one-piece, cohesively interconnected assembly.
- Such a one-piece assembly has obvious advantages in terms of the manufacturing process since only one manufacturing process is involved. is set and an at least non-positive, fluid-tight connection does not have to be generated first.
- the method comprises at least the following steps: a) providing a first tube, the first tube having a wall and extending at least along an axial direction; wherein the wall has an inner peripheral surface and an outer peripheral surface and encloses a first conduit;
- the adapter having a sleeve-like fitting for receiving the first tube and a second tube, the adapter having a second opening;
- the first tube has at least one first opening in the wall, wherein in step d) a second line formed by the second tube is fluidly connected via the first opening in the first tube and the second opening in the connecting piece to the first line becomes.
- the adapter and the first tube in addition to the frictional (and optionally additionally cohesive) connection, at least by a positive a positive connection connected to each other, wherein the positive connection is formed by a projection on the adapter, which surrounds the second opening; wherein the fitting is positioned on the first tube in step c) such that the protrusion extends into the first opening; wherein the projection in step c) is used to align the adapter with the first tube.
- a sealing agent is applied in the region between the connection piece and the outer circumferential surface before step d), wherein the sealing means ensures a fluid-tight seal of the connection between the adapter and the first pipe over the outer peripheral surface.
- a further method is proposed for producing a pipeline section of a common rail line which is provided for high-pressure injection of a fluid, in particular for producing the above-described one-piece pipeline section.
- the method comprises at least the following steps:
- the pipe section having at least a first pipe and an adapter as a one-piece assembly by a metal powder injection molding method; wherein the first tube has a wall and extends at least along an axial direction; wherein the wall has an inner peripheral surface and an outer peripheral surface and encloses a first conduit; the adapter having a fitting and a second pipe; wherein the fitting extends annularly around the first tube; wherein a second conduit formed by the second conduit is fluidly connected to the first conduit via a first opening in the first conduit and a second opening in the attachment;
- FIG. 1 shows a first embodiment variant of a pipe section in a side view in section
- Fig. 2 a second embodiment of a pipe section in a side view in section.
- Fig. 1 shows a first embodiment of a pipe section 1 in a side view in section.
- the pipe section 1 has a first pipe 3 and an adapter 4.
- the first tube 3 has a wall 6 and extends at least along an axial direction 7.
- the wall 6 has an inner circumferential surface 8 and an outer peripheral surface 9 and encloses a first conduit 10.
- the adapter 4 has a connecting piece 11 and a second tube 12, wherein the connecting piece 11 in an annular manner the first tube 3 is stretched and arranged on the outer circumferential surface 9.
- a second line 13 formed by the second tube 12 is fluidly connected to the first line 10 via a first opening 14 in the first tube 3 and a second opening 15 in the connection piece 11.
- the adapter 4 is manufactured by a metal powder injection molding process.
- Fig. 1 the process for producing the pipe section 1 of a common rail line 2 is also shown.
- step a) the first tube 3 is provided.
- step b) a one-piece adapter 4 is produced and provided by a metal powder injection molding process (see left-hand illustration of the adapter 4).
- step c) the adapter 4 with the sleeve-like connecting piece 11 is pushed onto the first tube 3, so that the connecting piece 11 extends annularly around the first tube 3 and forms an assembly 19 (see left-hand illustration of FIG. 1).
- step d) the assembly 19 is sintered, wherein the adapter 4 is shrunk onto the outer peripheral surface 9 of the first tube 3 with the sleeve-like connecting piece 11 and thus forms a non-positive connection 5 (possibly additionally cohesive connection) (see right illustration of FIG Fig. 1).
- the first tube 3 has before step c) in the wall 6, a first opening 14, wherein in step d) formed by the second tube 12 second conduit 13 via the first opening 14 in the first tube 3 and the second opening 15 in the connection piece 11 is fluidly connected to the first conduit 10.
- the adapter 4 and the first tube 3 are fluid-tightly connected to each other via the outer peripheral surface 9, wherein the fluid-tight seal exclusively is ensured by the frictional (possibly additionally cohesive) connection 5 between the first tube 3 and the connecting piece 11.
- Fig. 1 can be used in addition to the representation of the one-piece produced Rohr Obersab- section 1.
- the right-hand illustration of the pipe section 1 in FIG. 1 shows that the first pipe 3 and the adapter 4 are produced as a (common, one-piece) assembly by a metal powder injection molding process, with the first pipe 3 and the adapter 4 being materially connected to one another.
- the cohesive connection is formed by the fact that the first tube 3 and the adapter 4 are already made in the injection molding as a one-piece, cohesively interconnected assembly 19.
- the indicated dividing lines between the adapter 4 and the first tube 3 illustrate only the components described separately (adapter 4 and first tube 3), which, however, are actually executed together without a recognizable separation in the structure together in one piece.
- Fig. 2 shows a second embodiment of a pipe section 1 in a side view in section.
- the adapter 4 and the first tube 3 are connected to one another at least by a positive connection 16 in addition to the non-positive (optionally additionally cohesive) connection 5.
- the positive connection 16 is used exclusively to align the components (first tube 3, adapter 4) to one another during the manufacturing process.
- the required strength of the connection in the sintered assembly 19, consisting of the first tube 3 and the adapter 4 is exclusive ensured by the non-positive (possibly additionally cohesive) connection 5.
- the positive connection 16 is formed by a projection 17 on the adapter 4, which surrounds the second opening 15 and extends into the first opening 14 inside.
- the adapter 4 can be pushed onto the first tube 3 before sintering (see left illustration of the adapter 4). Via the projection 17 and the first opening 14, the adapter 4 can be positioned in a predetermined position relative to the first tube 3. Between the projection 17 and the first opening 14 is for a game 20 (a clearance fit) before, so that an accurate positioning can be ensured.
- the second embodiment variant additionally differs by the following feature:
- the adapter 4 and the first tube 3 are fluid-tightly connected to each other via the outer circumferential surface 9, wherein the fluid-tight seal via the non-positive (possibly additionally cohesive) compound 5 and additionally via a additional sealant 18 is ensured.
- solder material is used, which is applied before sintering in the region of the frictional connection 5 (see left illustration of the pipe section 1). By the solder material only the sealing effect is ensured. The majority of the required strength of the connection of the adapter 4 and the first tube 3 is also ensured here via the frictional (possibly additionally cohesive) connection 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Fuel-Injection Apparatus (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017104608.9A DE102017104608B4 (de) | 2017-03-06 | 2017-03-06 | Rohrleitungsabschnitt einer Common-Rail-Leitung und Verfahren zu dessen Herstellung |
PCT/EP2018/054457 WO2018162252A1 (de) | 2017-03-06 | 2018-02-23 | Rohrleitungsabschnitt einer common-rail-leitung und verfahren zu dessen herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3592968A1 true EP3592968A1 (de) | 2020-01-15 |
EP3592968B1 EP3592968B1 (de) | 2022-10-19 |
Family
ID=61386835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18707683.1A Active EP3592968B1 (de) | 2017-03-06 | 2018-02-23 | Rohrleitungsabschnitt einer common-rail-leitung und verfahren zu dessen herstellung |
Country Status (5)
Country | Link |
---|---|
US (2) | US20200025165A1 (de) |
EP (1) | EP3592968B1 (de) |
CN (1) | CN110462199A (de) |
DE (1) | DE102017104608B4 (de) |
WO (1) | WO2018162252A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210404429A1 (en) * | 2017-03-06 | 2021-12-30 | Gkn Sinter Metals Engineering Gmbh | Pipe Section of a Common Rail Line and Methods for Manufacturing Same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11982386B2 (en) | 2021-05-21 | 2024-05-14 | S & B Technical Products, Inc. | Process for producing gripping elements for sealing and restraint systems for fluid pipelines and pipe joints produced thereby |
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US4163561A (en) * | 1978-08-15 | 1979-08-07 | Dart Industries Inc. | Fatigue resistant fittings and methods of fabrication |
JPS63185988U (de) * | 1987-05-23 | 1988-11-29 | ||
JPH0533833Y2 (de) * | 1987-06-29 | 1993-08-27 | ||
JPH0533832Y2 (de) * | 1987-06-29 | 1993-08-27 | ||
JP2898384B2 (ja) * | 1989-09-27 | 1999-05-31 | 臼井国際産業株式会社 | 高圧燃料レールにおける分岐接続体の接続構造 |
JPH03275907A (ja) * | 1990-03-23 | 1991-12-06 | Mazda Motor Corp | カムシャフトの製造方法 |
JP2529032Y2 (ja) * | 1990-05-22 | 1997-03-12 | 臼井国際産業株式会社 | 高圧燃料多岐管における分岐枝管の接続構造 |
JP2544331Y2 (ja) | 1990-10-31 | 1997-08-20 | 臼井国際産業株式会社 | フユーエルデリバリパイプ |
JP2803383B2 (ja) * | 1991-04-08 | 1998-09-24 | トヨタ自動車株式会社 | 高圧流体用継手 |
JP3166090B2 (ja) * | 1992-05-29 | 2001-05-14 | 臼井国際産業株式会社 | フユーエルデリバリパイプの製造方法 |
JP3273196B2 (ja) | 1992-06-30 | 2002-04-08 | 臼井国際産業株式会社 | フユーエルデリバリパイプの製造方法 |
EP0668115A1 (de) * | 1994-02-16 | 1995-08-23 | Alusuisse-Lonza Services AG | Bauteil |
GB2322920B (en) * | 1997-03-03 | 2002-02-27 | Usui Kokusi Sangyo Kaisha Ltd | Common rail and method of manufacturing the same |
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JP4107629B2 (ja) * | 2000-02-07 | 2008-06-25 | 株式会社オティックス | コモンレールの製造方法 |
JP2003528254A (ja) | 2000-03-21 | 2003-09-24 | シーメンス アクチェンゲゼルシャフト | 燃料噴射器を位置合わせ可能なように燃料レールへ装着するための燃料噴射器組立体 |
DE10154645A1 (de) * | 2001-11-07 | 2003-06-12 | Siemens Ag | Verfahren zum Herstellen einer Kraftstoffspeicherleitung mit einem vorgespannten Anschlussstück |
DE10303853B4 (de) * | 2003-01-30 | 2008-07-10 | Schmittergroup Ag | Verfahren zur Herstellung einer zusammengesetzten Metall-Leitung für unter Hochdruck stehenden Kraftstoff sowie eine danach hergestellte zusammengesetzte Metall-Leitung |
JP2007056816A (ja) * | 2005-08-26 | 2007-03-08 | Usui Kokusai Sangyo Kaisha Ltd | 分岐接続管の接続構造 |
JP2007085245A (ja) * | 2005-09-21 | 2007-04-05 | Usui Kokusai Sangyo Kaisha Ltd | コモンレール |
WO2007135722A1 (ja) * | 2006-05-19 | 2007-11-29 | Oiles Corporation | 球帯状シール体及びそれを用いた排気管継手装置ならびに球帯状シール体の製造方法 |
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DE102007011868B3 (de) * | 2007-03-07 | 2008-09-04 | Mannesmann Präzisrohr GmbH | Verfahren zur Herstellung eines Hochdruckspeicherrohres aus Stahl für Kraftstoffeinspritzanlagen |
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DE102017104608B4 (de) * | 2017-03-06 | 2022-12-29 | Gkn Powder Metallurgy Engineering Gmbh | Rohrleitungsabschnitt einer Common-Rail-Leitung und Verfahren zu dessen Herstellung |
-
2017
- 2017-03-06 DE DE102017104608.9A patent/DE102017104608B4/de active Active
-
2018
- 2018-02-23 WO PCT/EP2018/054457 patent/WO2018162252A1/de unknown
- 2018-02-23 US US16/490,971 patent/US20200025165A1/en not_active Abandoned
- 2018-02-23 CN CN201880016724.1A patent/CN110462199A/zh active Pending
- 2018-02-23 EP EP18707683.1A patent/EP3592968B1/de active Active
-
2021
- 2021-07-12 US US17/373,206 patent/US11555474B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210404429A1 (en) * | 2017-03-06 | 2021-12-30 | Gkn Sinter Metals Engineering Gmbh | Pipe Section of a Common Rail Line and Methods for Manufacturing Same |
US11555474B2 (en) * | 2017-03-06 | 2023-01-17 | Gkn Sinter Metals Engineering Gmbh | Pipe section of a common rail line and methods for manufacturing same |
Also Published As
Publication number | Publication date |
---|---|
DE102017104608A1 (de) | 2018-09-06 |
WO2018162252A1 (de) | 2018-09-13 |
DE102017104608B4 (de) | 2022-12-29 |
US20200025165A1 (en) | 2020-01-23 |
US20210404429A1 (en) | 2021-12-30 |
US11555474B2 (en) | 2023-01-17 |
CN110462199A (zh) | 2019-11-15 |
EP3592968B1 (de) | 2022-10-19 |
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