WO2020020648A1 - Distributeurs de fluide, en particulier distributeur de carburant pour système d'injection de carburant d'un véhicule, et procédé de fabrication d'un distributeur de fluide - Google Patents

Distributeurs de fluide, en particulier distributeur de carburant pour système d'injection de carburant d'un véhicule, et procédé de fabrication d'un distributeur de fluide Download PDF

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Publication number
WO2020020648A1
WO2020020648A1 PCT/EP2019/068621 EP2019068621W WO2020020648A1 WO 2020020648 A1 WO2020020648 A1 WO 2020020648A1 EP 2019068621 W EP2019068621 W EP 2019068621W WO 2020020648 A1 WO2020020648 A1 WO 2020020648A1
Authority
WO
WIPO (PCT)
Prior art keywords
distributor
pressure accumulator
line
fluid
fluid distributor
Prior art date
Application number
PCT/EP2019/068621
Other languages
German (de)
English (en)
Inventor
Georg Weigl
Eckbert Zander
Original Assignee
Vitesco Technologies GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vitesco Technologies GmbH filed Critical Vitesco Technologies GmbH
Priority to DE112019003692.0T priority Critical patent/DE112019003692A5/de
Publication of WO2020020648A1 publication Critical patent/WO2020020648A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
    • 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

Definitions

  • Fluid distributors in particular fuel distributors for a fuel injection system of a vehicle, and method for producing a fluid distributor
  • the present invention relates to a fluid distributor, in particular for. B. fuel distributor for a fuel injection system of a vehicle, having a pressure accumulator for receiving a pressurized fluid (z. B.
  • the invention further relates to a method for producing such a fluid distributor.
  • the finished fuel distributor can essentially consist of a tube-like base body with a main storage bore forming the pressure accumulator for storing the fuel and a plurality of distribution bores opening into the main bore for forming a plurality of distributor lines.
  • the fuel which is under high pressure, can be distributed via the distributor lines to a plurality of fuel injectors of an internal combustion engine which are connected to the distributor lines.
  • a wall thickness of the base body is relatively large dimensioned.
  • a suitable surface treatment often creates a high surface quality to prevent the material from being cracked.
  • an autofrettage is often carried out to increase the strength of the pressure accumulator or its tubular base body and to prevent cracking in later use.
  • Fuel distributor described problem arises in principle also for otherwise manufactured fluid distributors, for example in which the pressure accumulator and the at least one distributor line are manufactured as separate components and joined together on the finished fluid distributor and connected to one another, for. B. are soldered.
  • relatively large wall thicknesses are conventionally provided for the pressure accumulator and each distributor line, in order to ensure that the fluid distributor in particular withstands the mechanical loads which are particularly great in the mouth region of each distributor line.
  • this object is achieved in a fluid distributor of the type mentioned at the outset in that an annular material accumulation protruding into the interior of the pressure accumulator is formed in an opening area of the distributor line on an inside of a wall of the pressure accumulator.
  • the accumulation of material means a local increase in the wall thickness, especially in the mouth area, the accumulation of material, according to the invention, in particular forming a sublime at least on the inside of the wall of the pressure accumulator.
  • the invention advantageously increases the operational strength of the fluid distributor and, due to a more appropriate use of material, ultimately also enables material savings since, for. B. wall thicknesses of a base body of the fluid distributor (outside the at least one mouth region) and / or wall thicknesses of the at least one distributor line can tend to be reduced.
  • the outlet area of the distributor line into the interior of the pressure accumulator can advantageously be designed in a voltage-optimized manner.
  • a bore intersection between a "main storage bore” and one or each "distributor bore” can be laid out in a voltage-optimized manner.
  • the material accumulation provided in the invention can in particular z. B. have a dome-like shape.
  • the force introduction can be optimized and the component stresses during operation of the fluid distributor can be reduced, which in turn increases its service life.
  • a corresponding distribution of the material can in particular by using an additive manufacturing process or z. B. can be achieved by soldering separately prefabricated individual components.
  • the pressure accumulator has a tubular base body, which preferably has an at least approximately cylindrical shape, such a base body (with a straight or curved course of a base body central axis) having a connection element (e.g. provided with a thread) at one end. may have for connecting a fluid supply line, where, however, the other end z. B. can be closed.
  • a connection element e.g. provided with a thread
  • the pressure accumulator or a tubular base body provided for the formation thereof preferably has an at least approximately uniform wall thickness, apart from the one or more points at which the material accumulation is formed.
  • the pressure accumulator or a tubular base body provided to form the same can in particular have a circular cross section and / or a cross section which is at least approximately uniform over the length. Deviating from this, however, z. B. an oval cross section can be provided.
  • a size of a cross-sectional area of the distributor line is smaller than a size of a cross-sectional area of the tubular base body, for example at least by a factor of 2, in particular at least by a factor of 4.
  • cross-sectional area of the distributor line and "cross-sectional area of the tubular base body” are to be understood here in each case as the total cross-sectional area of the wall in question and the area enclosed (fluidly filled in the situation of use). If the cross-sectional areas concerned vary along the base body or along the distribution line, the above design rule relates to the cross-sectional areas present in the immediate vicinity of the mouth area.
  • a central axis of the distributor line is oriented radially to a central axis of the tubular base body.
  • a size of a cross-sectional area of the material accumulation is at least 0.5 times, in particular at least 0.8 times, a size of a cross-sectional area of a wall of the distributor line.
  • the size of the cross-sectional area of the material accumulation is at most 4 times, in particular at most 3 times, the size of the cross-sectional area of this wall.
  • cross-sectional area of the material accumulation and "cross-sectional area of a wall” are each to be understood as the cross-sectional area of the material of the material accumulation or the wall in question, that is to say without the respective area enclosed (fluid-filled in the use situation). If the relevant cross-sectional areas vary along the height of the material accumulation or along the distribution line, the above design rule relates to the maximum cross-sectional area of the material accumulation or the cross-sectional area of the distribution line wall that is in the immediate vicinity of the outlet area.
  • the ring-shaped material accumulation provided in the invention can in particular have at least approximately an annular shape and / or can be formed at least approximately rotationally symmetrically with respect to a central axis of the distributor line (close to or in the mouth area).
  • a circular shape from a different shape of the material accumulation comes into consideration, in particular special z.
  • the accumulation of material tapers toward the interior of the accumulator when viewed (i.e., toward the height of the accumulation of material).
  • the amount of material accumulation is at least 0.1 times, in particular at least 0.2 times, a transverse dimension of the distribution line.
  • the amount of material accumulation is at most 1.2 times, in particular at most 0.8 times, the transverse dimension of the distributor line.
  • transverse dimension of the distributor line means the outside diameter of the distributor line. If the distribution line does not have a circular cross-section, the transverse dimension refers to the maximum transverse dimension.
  • the amount of material accumulation is at least 0.5 times, in particular at least 1 times, a wall thickness of the distributor line (at the transition into the pressure accumulator). On the other hand, in most applications it is useful if the amount of material accumulation is a maximum of 3 times, in particular a maximum of 2 times, the wall thickness of the distribution line.
  • the amount of material accumulation is at least 0.5 times, in particular at least 1 times, a wall thickness of the pressure accumulator (in the vicinity of the junction of the relevant distribution line).
  • the height of the material accumulation is a maximum of 3 times, in particular a maximum of 2 times, the wall thickness of the pressure accumulator.
  • the pressure accumulator and the we at least one distribution line are made in one piece.
  • a metallic material is preferred as material for this.
  • the pressure accumulator and the at least one distributor line are manufactured by means of a so-called additive manufacturing process.
  • a geometry of the fluid distributor in particular a geometry, can advantageously be used be provided in the area of the annular material accumulation, by means of which the mechanical stresses in the area of the mouth of each distributor line in the pressure accumulator are minimized.
  • the pressure accumulator and the at least one distributor line are manufactured as separate components and joined together on the finished fluid distributor, in particular cohesively, e.g. B. by means of soldering.
  • one end of a separately manufactured distribution line projects through a suitably dimensioned opening of the wall of the pressure accumulator into the interior of the pressure accumulator, so that the part of a wall of the distribution line protruding from the wall of the pressure accumulator into the interior of the pressure accumulator is annular
  • a further part of the ring-shaped material accumulation can be formed, in particular, by an opening edge of the opening in the wall of the pressure accumulator which projects into the interior of the pressure accumulator (for example, is formed or bent or flanged accordingly).
  • the object mentioned at the outset is achieved in a method for producing a fluid distributor of the type mentioned at the outset in that the production takes place in such a way that in the finished fluid distributor, an in in a mouth region of the distributor line on an inside of a wall of the pressure accumulator the inside of the pressure accumulator projecting annular material accumulation is formed.
  • this comprises the step of one-piece production of the printing Storage and the at least one distribution line by means of an additive manufacturing process (z. B. SLM, SLS or the like).
  • an additive manufacturing process z. B. SLM, SLS or the like.
  • an additive manufacturing method in the context of a manufacture according to the invention does not in any way preclude the fact that one or more components (e.g. connecting elements, fastening tabs or devices etc.) are retrofitted to an additively manufactured body (e.g. mentioned tubular base body including Ver distribution line (s)) are connected, in particular by a material connection such. B. welding or soldering, or z. B. by a screw.
  • a material connection such. B. welding or soldering, or z. B. by a screw.
  • the manufacturing method comprises the step of separately manufacturing the pressure accumulator and the at least one distributor line and the step of assembling the pressure accumulator and the at least one distributor line produced in such a way that one end of the distributor line on the finished fluid distributor in the inside of the accumulator protrudes.
  • a use of a fluid distributor of the type described here as a fuel distributor in a fuel injection system is one
  • a fluid distributor as described here can also be used e.g. B. be provided as a hydraulic fluid distributor in a (stationary or mobile) hydraulic system, in particular, for. B. in a hydraulic brake system of a vehicle for the purpose of distributing brake fluid.
  • FIG. 1 shows a fuel distributor according to an exemplary embodiment according to a conventional design
  • Fig. 2 shows a fuel rail according to a first
  • Fig. 3 is a sectional view of a detail of a conventional type fuel rail
  • Fig. 4 is a sectional view of a detail of the force
  • Fig. 5 is a sectional view along the line V-V in FIG. 4,
  • Fig. 6 shows a sectional view of a detail of a fuel distributor according to a further exemplary embodiment of the invention.
  • FIG. 7 shows a sectional view of a detail of a fuel distributor according to a further exemplary embodiment of the invention.
  • Fig. 1 shows a fuel rail 10 for a fuel injection system of a vehicle of a conventional type.
  • the fuel distributor 10 has a pressure accumulator 20 for holding a fuel under pressure and four distributor lines 30 opening into the pressure accumulator 20 for distributing the stored fuel (not shown).
  • Fuel injectors of an internal combustion engine are Fuel injectors of an internal combustion engine.
  • the fuel distributor 10 is used to distribute gas at a pressure of approximately 350 bar to four (not shown) fuel injectors of an ot tomotor. At the lower ends of the distributor lines 30 in FIG. 1, respective injector connection elements for connecting the fuel injectors can be seen.
  • the pressure accumulator 20 consists in the illustrated embodiment, for example, essentially of a tubular base body 22, which is equipped at one (in Fig. 1 left) end with a connecting element 24 for a fuel supply line and at the other (in Fig. 1 right) end by a sealing plug 26 is closed.
  • the connecting element 24 can be integrally formed with the base body 22 or z. B. separately manufactured before and subsequently connected to the base body (z. B. soldered).
  • the base body 22 is provided with a connecting piece 27 for connecting a pressure sensor and with a fastening tab 28 for fastening the fuel distributor 10 to the relevant internal combustion engine or in a relevant vehicle.
  • the pressure accumulator 20 and the distribution lines 30 were manufactured as separate components from a metallic material (e.g. steel) and to form the one in FIG. 1 shown finished fuel rail 10 assembled and soldered with the interposition of pipe sleeves 32.
  • a metallic material e.g. steel
  • the pipe sleeves 32 are seen before, within each of which the respective distributor line 30 is closed in a ring-shaped manner, a hard solder which has an outer peripheral surface of the Distributor line 30 connects to an inner peripheral surface of the pipe sleeve 32.
  • Another hard solder is located on an end face of the pipe sleeve 32 and connects it there to an area on the outside of the base body 22.
  • the brazing material can e.g. B. copper or a copper alloy may be provided.
  • each distributor line 30 Spaced from the part of each distributor line 30 covered by the pipe sleeve 32 (bottom in FIG. 1), each distributor line 30 is provided with a respective fastening device 34. These fastening devices 34 serve as the fastening supply plate 28 for fastening the fuel distributor 10 in its use situation.
  • Pressure accumulator 20 opens.
  • FIG. 3 schematically shows a detail of a fluid distributor 10, namely an area of a pressure accumulator 20 in which one Distribution line 30 is connected to the pressure accumulator 20.
  • a mouth area 40, in which the distributor line 30 opens into the pressure accumulator 20, is shown in broken lines.
  • Fig. 3 illustrates (schematically) the geometry usually present in conventional fluid distributors both for the "soldered" embodiment of the fuel distributor 10 shown in FIG. 1, in which the distributor line 30 or its through the material of the pipe sleeve 32 and / or the wall 23 of the pressure accumulator 20 continues through an opening formed in the pressure accumulator wall 23 and ends flush on an inner side 42 of the wall 23, as well as for a “forged” version, also known from the prior art, in which the pressure accumulator 20 and each distributor line 30 is manufactured in one piece by forging a base body 22 and subsequent machining, so that the base body 22 receives a "main storage bore” 44 and one or more "distributor bores" 36.
  • FIG. 2 shows a fuel distributor 10a according to a first exemplary embodiment of the invention.
  • the fuel distributor 10a has a pressure accumulator 20a and in this example three distribution lines 30a opening into the pressure accumulator 20a.
  • a special feature of the fuel distributor 10a is that the pressure accumulator 20a and the distributor lines 30a are manufactured in one piece by means of an additive manufacturing method (e.g. made of a metallic material), in this example, when the additive manufacturing method is carried out, fastening devices 34a and ( For example, instead of a separately manufactured "sealing plug" 26), a closed end 26a was formed.
  • a mouth region 40a (FIGS. 4 and 5) is provided, which has a novel “geometry” and is therefore different from the one described above with reference to FIG. 3 Mouth area 40 is formed. This special feature is explained in more detail below with reference to FIGS. 4 and 5.
  • FIG. 4 shows a sectional view of a base body 22a forming the pressure accumulator 20a at a point at which one of the distributor lines 30a opens into the pressure accumulator 20a.
  • FIG. 5 shows a sectional view along the line V-V in FIG. 4.
  • annular "material accumulation" 46a protruding into the interior of the pressure accumulator 20a is formed in the opening region 40a of the distributor line 30a on an inner side 42a of a wall 23a of the pressure accumulator 20a (base body 22a).
  • the material cluster 46a has a dome-like shape.
  • an outer radius of the material accumulation 46a in the direction away from the wall 23a into the interior of the pressure accumulator 20a initially decreases strongly and then less and less (see above) 4 results in the concave outer contour), in this example an annular flat plateau surface being provided at the free end of the material accumulation 46a.
  • the outer radius of the material accumulation starting from the wall 23a could initially decrease slightly and then increasingly more (so that a convex outer contour would result in the sectional plane of FIG. 4).
  • the outer radius of the material accumulation could also decrease uniformly starting from the wall 23a (so that an outer contour with straight flanks would result in the sectional plane of FIG. 4), that is to say the material accumulation has a frustoconical shape would own design.
  • a size of a cross-sectional area of the distributor line 30a is approximately 2.5 times smaller than a size of a cross-sectional area of the tubular base body 22a.
  • a central axis of the distribution line 30a in the mouth region 40a is oriented radially to a central axis of the tubular base body 22a.
  • a size of a cross-sectional area of the material accumulation 46a is approximately 0.6 times a size of a cross-sectional area of the wall 31a of the distributor line 30a.
  • a rounding 48a which increases the mechanical stability of the connection of the distributor line 30a to the wall 23a of the pressure accumulator 20a, is advantageously formed.
  • the material accumulation 46a tapers towards the inside of the pressure accumulator 20a.
  • the height of the material accumulation 46a in this example is approximately 0.3 times a transverse dimension of the distributor line 30a, and is approximately as large as a wall thickness of the distributor line 30a.
  • FIGS. 6 and 7 Further exemplary embodiments of fuel distributors according to the invention are explained below with reference to FIGS. 6 and 7, in which the pressure accumulator and the at least one distributor line are not manufactured in one piece, but are manufactured as separate components and joined together on the finished fuel distributor and integrally with one another are connected.
  • FIG. 6 and 7 show, in respective sectional views similar to the sectional view of FIG. 4, only a detail of a respective fuel distributor 10b (FIG. 6) or 10c (FIG. 7), i. H. respective areas of the junction of a distributor line 30b or 30c in the pressure accumulator 20b or 20c.
  • the fuel distributors 10b and 10c can be designed essentially as shown in FIG. 1 and already described with reference to FIG. 1.
  • the essential modification compared to the embodiment of FIG. 1 can be seen in FIG. 6 or FIG. 7 and is described in more detail below.
  • Fig. 6 shows a detail of the fuel rail 10b, having the pressure accumulator 20b and the at least one in the pressure accumulator 20b opening manifold 30b.
  • the pressure accumulator 20b is essentially formed by a tubular base body 22b made of a metallic material (e.g. steel), which is separate from the one also made of a metallic material.
  • a metallic material e.g. steel
  • mical material e.g. steel
  • an opening is formed in the wall 23b to match the (e.g. circular) cross-sectional area of the prefabricated distributor line 30b (e.g. by machining such as drilling or e.g. Punching).
  • the distributor line 30b is provided with a pipe sleeve 32b and a solder material ring 50b and the distributor line 30b is then inserted through this opening in the wall 23b into the pressure accumulator 20b until an end region of the distributor line 30b on the inside of the wall 23b into the interior of the pressure accumulator 20b (to a desired extent).
  • FIG. 6 illustrates a further exemplary embodiment in a sectional view corresponding to FIG. 6.
  • the fuel distributor 10c which is modified compared to the example of FIG.
  • a material accumulation 46c is formed not only from an end region of the distributor line 30c projecting into the interior of a pressure accumulator 20c, but also partly through an into the interior of the pressure accumulator 20c projecting (for example, appropriately designed or unbent or flanged) opening edge of an opening in a wall 23c of the pressure accumulator 20c.
  • this opening edge z. B. be designed as a punch feed.
  • a size of a cross-sectional area of the material accumulation 46c is larger than in the example of FIG. 6, because the cross-sectional area of the material accumulation 46c (FIG. 7) results from the cross-sectional areas on the one hand of a wall 31c of the distributor line 30c and on the other hand, a cross-sectional area of the opening edge projecting into the interior of the pressure accumulator 20c, whereas the cross-sectional area of the material accumulation 46b (FIG. 6) corresponds to the cross-sectional area of a wall 31b of the distributor line 30b.
  • the method already described above for the fuel distributor 10b can be provided, with the modification that when the pressure accumulator 20c is prefabricated, the opening provided for inserting the distributor line 30c into the interior of the Accumulator 20c projecting opening edge is formed (be it, for example, by machining or, for example, by reshaping in this area).
  • the design of a fluid distributor or its production method can be targeted each mouth area material are added (in the area of the inside of the wall of the pressure accumulator), so that the fluid distributor according to the invention can have a higher operational strength and / or a lower weight compared to a conventional fluid distributor (without the accumulation of material).
  • Lower mechanical stresses in each area of the coin may also advantageously make it possible to dispense with post-processing to improve the surface quality.
  • the use of the invention is particularly interesting for fluid distributors in which the fluid (e.g.
  • Fuel, hydraulic fluid etc. is operationally under a pressure of more than 100 bar.
  • this pressure can typically be more than 200 bar (for example for gasoline distributors) or even more than 1000 bar (for example for diesel distributors).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un distributeur de fluide (10a), en particulier un distributeur de carburant destiné à un système d'injection de carburant d'un véhicule. Le distributeur de fluide comprend un accumulateur de pression (20a) destiné à recevoir un fluide sous pression et au moins une ligne de distribution (30a, 30b, 30c) débouchant dans l'accumulateur de pression (20a). Afin de permettre un haut niveau de stabilité opérationnelle avec un faible coût de matière, l'invention prévoit de former une accumulation de matière annulaire (46a), saillant à l'intérieur de l'accumulateur de pression (20a), sur un côté intérieur d'une paroi (23a) de l'accumulateur de pression (20a) dans une zone d'embouchure (46a) de la ligne de distribution (30a). L'invention concerne en outre un procédé de fabrication d'un tel distributeur de fluide (10a), notamment par exemple à l'procédé de fabrication additive.
PCT/EP2019/068621 2018-07-24 2019-07-10 Distributeurs de fluide, en particulier distributeur de carburant pour système d'injection de carburant d'un véhicule, et procédé de fabrication d'un distributeur de fluide WO2020020648A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112019003692.0T DE112019003692A5 (de) 2018-07-24 2019-07-10 Fluidverteiler, insbesondere Kraftstoffverteiler für ein Kraftstoffeinspritzsystem eines Fahrzeuges, sowie Verfahren zur Herstellung eines Fluidverteilers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018212282.2 2018-07-24
DE102018212282.2A DE102018212282A1 (de) 2018-07-24 2018-07-24 Fluidverteiler, insbesondere Kraftstoffverteiler für ein Kraftstoffeinspritzsystem eines Fahrzeuges, sowie Verfahren zur Herstellung eines Fluidverteilers

Publications (1)

Publication Number Publication Date
WO2020020648A1 true WO2020020648A1 (fr) 2020-01-30

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WO (1) WO2020020648A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102020210124A1 (de) 2020-08-11 2022-02-17 Robert Bosch Gesellschaft mit beschränkter Haftung Metallisches Gehäuseteil, hydraulische Axialkolbenmaschine mit einem metallischen Gehäuseteil und Gusskern für das Gießen eines metallischen Gehäuseteils
DE102021107242B3 (de) 2021-03-23 2022-07-28 Benteler Automobiltechnik Gmbh Kraftstoffverteiler und Kraftstoff-Einspritzanlage

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DE10152261A1 (de) * 2001-10-20 2003-04-30 Bosch Gmbh Robert Hochdruckspeicher wie Kraftstoffhochdruckspeicher
US20040118382A1 (en) * 2002-09-25 2004-06-24 Masayoshi Usui Fuel rail assembly and forming method
JP2007016668A (ja) * 2005-07-06 2007-01-25 Usui Kokusai Sangyo Kaisha Ltd 直噴ガソリンエンジン用燃料レール
JP2007085245A (ja) * 2005-09-21 2007-04-05 Usui Kokusai Sangyo Kaisha Ltd コモンレール
DE102016209423A1 (de) * 2016-05-31 2017-11-30 Robert Bosch Gmbh Hochdruckspeicher und Verfahren zur Herstellung eines Hochdruckspeichers

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US6929288B2 (en) * 2001-12-20 2005-08-16 Usui Kokusai Sangyo Kaisha Limited Connecting structure of branch connector in fuel pressure accumulating container
JP2004332602A (ja) * 2003-05-06 2004-11-25 Usui Kokusai Sangyo Kaisha Ltd ディーゼル内燃機関用蓄圧式燃料噴射システム
DE102016210391A1 (de) * 2016-06-13 2017-12-14 Hirschvogel Umformtechnik Gmbh Druckbelastetes Bauteil sowie Verfahren zu dessen Herstellung
DE102017206268A1 (de) * 2017-04-12 2018-10-18 Robert Bosch Gmbh Verteilervorrichtung für eine Einspritzvorrichtung einer Brennkraftmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152261A1 (de) * 2001-10-20 2003-04-30 Bosch Gmbh Robert Hochdruckspeicher wie Kraftstoffhochdruckspeicher
US20040118382A1 (en) * 2002-09-25 2004-06-24 Masayoshi Usui Fuel rail assembly and forming method
JP2007016668A (ja) * 2005-07-06 2007-01-25 Usui Kokusai Sangyo Kaisha Ltd 直噴ガソリンエンジン用燃料レール
JP2007085245A (ja) * 2005-09-21 2007-04-05 Usui Kokusai Sangyo Kaisha Ltd コモンレール
DE102016209423A1 (de) * 2016-05-31 2017-11-30 Robert Bosch Gmbh Hochdruckspeicher und Verfahren zur Herstellung eines Hochdruckspeichers

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DE112019003692A5 (de) 2021-04-08

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