WO2004111435A1 - Pompe a pistons radiaux pour production de haute pression pour carburant dans des systemes d'injection de carburant de moteurs a combustion interne - Google Patents

Pompe a pistons radiaux pour production de haute pression pour carburant dans des systemes d'injection de carburant de moteurs a combustion interne Download PDF

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Publication number
WO2004111435A1
WO2004111435A1 PCT/EP2004/006207 EP2004006207W WO2004111435A1 WO 2004111435 A1 WO2004111435 A1 WO 2004111435A1 EP 2004006207 W EP2004006207 W EP 2004006207W WO 2004111435 A1 WO2004111435 A1 WO 2004111435A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
piston
ceramic
pump according
piston pump
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.)
Ceased
Application number
PCT/EP2004/006207
Other languages
German (de)
English (en)
Inventor
Gerhard Breuer
Claudia Kohler
Franz Rückert
Karl-Heinz Thiemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to US10/560,465 priority Critical patent/US20060222517A1/en
Priority to EP04736393A priority patent/EP1633971B1/fr
Priority to DE502004003060T priority patent/DE502004003060D1/de
Priority to JP2006515862A priority patent/JP2006527329A/ja
Publication of WO2004111435A1 publication Critical patent/WO2004111435A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • F02M59/445—Selection of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F05C2203/0804—Non-oxide ceramics
    • F05C2203/083—Nitrides
    • F05C2203/0843—Nitrides of silicon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/10—Hardness

Definitions

  • the invention relates to a radial piston pump for generating high fuel pressure in fuel injection systems of internal combustion engines, in particular in a common rail injection system, with a drive shaft mounted in a pump housing with an eccentric shaft section on which a roller is mounted, and preferably with a plurality of radial ones with respect to the drive shaft Pistons arranged in a respective cylinder, at the ends of which are facing the roller, a piston footplate is arranged, which contacts the peripheral surface of the roller, according to the preamble of claim 1.
  • Such a radial piston pump is known for example from DE 198 09 315 Al.
  • the piston base plate and the roller of the known radial piston pump are usually made of case hardening steel or also ' of tempering steel. Over time, however, these components may experience sliding wear due to adhesion, abrasion or surface disruption. This undesirable wear can lead to a failure of the radial piston pump and thus also to a failure of the internal combustion engine.
  • the present invention is based on the object of further developing a radial piston pump of the type mentioned in such a way that its reliability is increased.
  • the surface of the piston foot plate contacting the peripheral surface of the roller consists of a wear-resistant material, namely of hard metal, of a ceramic material, of a cast carbide material or of cermet, and / or at least part of the roller, in particular at least a part of it
  • a wear-resistant material namely of hard metal, of an investment casting material, of a cast carbide material, of a sintered tool steel or of an alloyed nitriding steel and / or the piston is made of a ceramic material
  • the piston base plate rollers will tend to wear -Grid pairing and the piston-cylinder pairing significantly reduced.
  • the materials mentioned have a significantly higher modulus of elasticity than the steel materials previously used, which results in less deformation under load and consequently also in a more uniform surface pressure without any significant stress peaks.
  • ceramic materials their lower weight plays a role, which results in a low mass inertia of the roller, the piston and the piston foot plate.
  • the roller and / or the piston footplate can be made entirely of the wear-resistant material or these parts consist, as previously, of case-hardening steel or tempering steel and carry at least one insert made of the wear-resistant material.
  • inserts has the advantage of a modular structure, ie that a standardized roller and a standardized piston footplate can each be provided with inserts made of different materials and a large number of pairing variants can thus be generated. Due to the material properties of the wear-resistant materials used, the following pairings are particularly preferred:
  • the roller consists of a hardened and tempered steel and has inserts made of hard metal such as G20, GC37 or GC20 and the piston foot disc consists of ceramic such as Si 3 N 4 ceramic, from hard cast iron such as SoGSH or from Cermet or it has inserts made from the materials mentioned.
  • the roller consists of an investment casting such as GX-210WCrl3 H and the piston base plate made of ceramic such as Si 3 N 4 ceramic, hard metal such as G20 or cermet or it has inserts made of the materials mentioned.
  • the roller consists of a cast carbide material such as hard cast SoGGH and the piston base plate made of ceramic such as Si 3 N 4 ceramic, hard metal such as G20 or cermet or it has inserts made of the materials mentioned.
  • the roller consists of sintered tool steel such as ASP23 or an alloyed nitriding steel and the piston base plate made of ceramic such as SI 3 N 4 ceramic, hard metal such as G20, cermet or a cast carbide material such as SoGGH or it has inserts made of the materials mentioned ,
  • the alloyed nitriding steel can contain C and / or Cr and / or V and / or Mo, is gas nitrided and in the contact area with the piston footplate there is no connection layer.
  • the surface of the piston footplate and / or the roller has a roughness depth R z between 0.15 ⁇ m and 2 ⁇ m. More precisely, the ceramic material has a roughness depth R z between 0.15 ⁇ m and 0.5 ⁇ m, the hard metal has a roughness depth R z between 0.3 ⁇ m and 1.0 ⁇ m and the cast carbide material has a roughness depth R z between 0.5 ⁇ m and 2.0 ⁇ m.
  • the roller has at least one transverse groove extending transversely to the direction of movement on its circumferential surface.
  • the piston footplate can also have at least two intersecting grooves on its surface facing the roller. Fuel can accumulate in these grooves, each of which acts as a storage gap, which, due to the sliding movement between the circumferential surface of the roller and the piston foot plate, promotes the formation of a hydrodynamic sliding film, which further reduces wear on the sliding surfaces.
  • the flask preferably consists of an Si 3 N 4 or a ZrO 2 ceramic, is produced by extrusion and has a porosity of less than 5%, the surface being infiltrated with MoS 2 .
  • the piston is extruded and sintered isostatically. This results in a very smooth surface with a low coefficient of friction, which also has a favorable effect on wear behavior.
  • Fig.l is a cross-sectional view of a radial piston pump with a piston foot plate and a drive shaft according to a first embodiment of the invention
  • FIG. 2 shows an enlarged cross-sectional view of a piston and a piston base plate according to a further embodiment
  • FIG. 2a shows an enlarged detail from FIG. 2;
  • FIG. 2b shows a further enlarged detail from FIG. 2;
  • FIG. 3 shows a view from below of the piston footplate of FIG. 2; 4 shows a cross-sectional view of a piston
  • FIG. 5 shows a cross-sectional view of a drive shaft according to a further embodiment
  • Figure 6 is a view along the line VI-VI of Figure 5;
  • FIG. 7 is a view along the line VII-VII of Fig.6.
  • the radial piston pump 1 shown in Fig.l is preferably used to generate the system pressure for the high pressure accumulator (rail) of a common rail injection system of a self-igniting internal combustion engine. It comprises a drive shaft 4 which is mounted in a pump housing 2 and has an eccentric shaft section 6, on which a polygonal roller 8 which is rotatable relative to the shaft section 6 is received.
  • the polygonal roller 8 has flat flat sections 12 arranged along its circumferential surface 10 with circumferential spacing from one another.
  • a piston 16 which is guided radially in a cylinder 14 to the drive shaft 4 with its piston foot plate 18, is supported on the flat sections 12 of the roller 8.
  • the piston base plate 18 is preferably pivotally connected to the end of the piston 16 facing the drive shaft 4 by means of a spherical bearing 20.
  • the spherical bearing 20 is realized, for example, in that the piston end is designed as a partial ball 22 which engages in a complementarily designed spherical recess 24 in the piston foot plate 18.
  • the piston base plate 18 is biased together with the piston 16 by a spring 26 against the associated flat portion 12 of the roller 8.
  • At least the surface 28 of the piston foot plate 18 contacting the peripheral surface 10 of the roller 8 is made of a wear-resistant material, namely of hard metal, of a ceramic material, of a cast carbide material or of cermet.
  • a wear-resistant material namely of hard metal, of a ceramic material, of a cast carbide material or of cermet.
  • the piston foot plate 18 has at least one, for example, disk-shaped insert 30 made of the wear-resistant material on its surface 28 facing the roller 8.
  • the insert 30 can be connected to the remaining piston foot plate 18 in a form-fitting and / or cohesive manner, for example by gluing or by soldering.
  • the insert 30 can, as shown in Fig.l, extend over the entire contact surface 28 of the piston foot plate 18 with the roller 8 or only over a part of it.
  • the entire piston foot plate 18 can also be made of the wear-resistant material, so that no additional insert 30 is necessary.
  • Hard metals can consist of G20, GC37 or GC20, for example, while the cast carbide material can contain a hard cast material, in particular GGH or SoGGH.
  • the piston 16 itself can be made of wear-resistant material, for example of an Si 3 N 4 or a ZrO 2 ceramic.
  • the piston 16 can be produced by extrusion and have a porosity less than 5%, the surface being infiltrated with MoS 2 .
  • the piston 16 can also be isostatically pressed and sintered.
  • At least part of the roller 8, in particular the flat sections 12, consists of a wear-resistant material, namely of hard metal, of an investment casting material, from a cast carbide material, from a sintered tool steel or from an alloyed nitriding steel.
  • the flat sections 12 are each provided with an insert 32 made of the wear-resistant material, as shown in FIG.
  • an insert 32 is in each case received in a complementarily shaped recess 34 in the flat section 12 in a form-fitting and / or cohesive manner, for example by gluing or by soldering.
  • the entire roller 8 can consist of the wear-resistant material.
  • hard metals are used here, which have low adhesion coefficients.
  • a suitable investment casting material is, for example, GX-210WCrl3 H, for the cast carbide material locally remelted, carbide SoGGH (gradient material) can be used.
  • ASP23 is suitable for sintered tool steel.
  • a nitriding steel specially alloyed by nitriding or gas nitriding with Cr and / or Mo and / or V and / or C is used for a variant with gradient material.
  • the basic elements and the process parameters for nitriding lead to a deep diffusion with hardnesses of HV 750 to 850 and at the same time higher strength of the base material.
  • the connection layer that forms is removed for functional reasons by grinding.
  • the surfaces of the piston foot plate 18 and the roller 8 preferably have a roughness depth R z between 0.15 ⁇ m and 2 ⁇ m on the sliding surfaces, depending on the materials used.
  • the lower limit applies to ceramics, in particular a range from 0.15 ⁇ m to 0.5 ⁇ m upper limit for metals like SoGGH or ASP23.
  • a roughness depth R z between 0.3 ⁇ m and 1 ⁇ m is provided for hard metal.
  • a carbide zone is formed in the area of the flat sections 12 of the castor 8, which is made of a cast steel material and is shown separately in FIG.
  • This carbidic zone is generated either by a targeted solidification rate when casting the roller 8 or by remelting and then preferably forms the gradient material SoGGH.
  • the result is a roller 8, in which a carbide zone 33 is formed in the region of the flat sections 12, while the remaining zones and regions of the roller 8 consist of cast steel with unchanged properties.
  • transverse grooves 36 can be formed in each case in the area of the flat sections 12 of the roller 8, as can best be seen from FIG.
  • the transverse groove 36 is arranged in the center of a depression 29 of the flat section 12 forming a groove outlet.
  • the depression 29 is formed by two planes arranged at an angle with respect to the flat section 12, in the section line of which the transverse groove 36 lies.
  • the sink angle ⁇ of the sink 29 is, for example, less than 15 degrees.
  • the transition from the depression 29 and the flat section 12 is rounded with a radius R 4 of preferably less than or equal to 1 mm.
  • the radius R 4 is generated, for example, by vibratory grinding.
  • the piston base plate 18 is held by a plate holder 38 on the associated piston 16 in the example according to FIG.
  • the piston foot plate 18 has a circular recess 40 on its surface facing the piston 16, into which the crowned end 42 of the piston 16 engages and contacts the bottom of the recess 40.
  • the plate holder 38 is countered on the piston 16 by means of a snap ring 46 which engages in a groove 44 of the piston 16.
  • a complementarily shaped insert 30 made of one of the wear-resistant materials described above is held in a circular recess 48 in the piston foot plate 18, for example by material closure, in particular by soldering.
  • the insert 30 is provided on the edge 31 on its surface 31 facing the roller 8 with an angular outlet 35, the outlet angle ⁇ being approximately 15 degrees.
  • the transition between this surface 31 and the outlet 35 is rounded with a radius R 2 of approximately 2 mm.
  • the transition between the outlet 35 and the edge surface 37 of the insert 30 is also rounded by means of a radius Ri of less than or equal to 1 mm.
  • the inserts 30 of the piston foot plate 18 preferably have at least two intersecting grooves 50, as best shown in FIG. Due to the intersecting arrangement of the grooves 50, there is a high probability that one of the grooves 50 is oriented transversely to the direction of movement with regard to the piston foot plate 18, which is rotatable with respect to the plate holder 38, in order to promote the formation of a hydrodynamic lubricating film.
  • the grooves 50 are preferably created by pressing. Thereby This results in a lower notch effect compared to cutting processes, since the material fibers are not cut.
  • the grooves 50 are each arranged in the center of a depression 39 of the surface 31 forming a groove outlet.
  • the depression is formed by two planes arranged at an angle with respect to the surface 31, in the intersecting line of which the respective groove 50 lies.
  • the sink angle ⁇ of the sink 39 is, for example, 5 degrees.
  • the transition from the depression 39 and the surface 31 is rounded with a radius R 3 of preferably less than or equal to 1 mm.
  • the piston foot plate 18 consists entirely of one of the abrasion-resistant materials mentioned above and is inserted into the through hole 52 of an annular sleeve 54 which is made of steel.
  • the connection between the ring sleeve 54 and the piston foot plate 18 is preferably made by soldering.
  • other possibilities are also conceivable for attaching wear-resistant material to the mutually associated sliding surfaces 12, 28 of the roller 8 and piston foot plate 18.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Reciprocating Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne une pompe à pistons radiaux (1) servant à produire une haute pression pour carburant dans des systèmes d'injection de carburant de moteurs à combustion interne, notamment dans un système d'injection par accumulation de pression. Celle pompe comprend un arbre d'entrée (4), monté dans un carter de pompe (2) et comportant une section d'arbre (6) excentrique, sur laquelle est monté un galet de roulement (8), ainsi que de préférence plusieurs pistons (16) montés dans le sens radial par rapport à l'arbre d'entrée (4), dans chaque cas, dans un cylindre (14). Un patin de piston (18) est disposé, dans chaque cas, aux extrémités de piston, tournées vers le galet de roulement (8), ledit patin étant en contact avec la surface périphérique (10, 12) du galet de roulement (8). Il est prévu, selon l'invention, qu'au moins la surface (28) du patin de piston (18), en contact avec la surface périphérique (10, 12) du galet de roulement (8), consiste en un matériau résistant à l'usure, notamment en métal dur, en un matériau céramique, en un matériau carbidique coulé ou en cermet, et/ou qu'au moins une partie du galet de roulement (8), en particulier au moins une partie de la surface périphérique (10, 12) du galet de roulement (8) consiste en un matériau résistant à l'usure, notamment en métal dur, en un matériau de moulage de précision, en un matériau carbidique coulé, en un acier à outils fritté ou en un acier de nitruration allié et/ou que le piston (16) consiste en un matériau céramique.
PCT/EP2004/006207 2003-06-14 2004-06-09 Pompe a pistons radiaux pour production de haute pression pour carburant dans des systemes d'injection de carburant de moteurs a combustion interne Ceased WO2004111435A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/560,465 US20060222517A1 (en) 2003-06-14 2004-06-09 Radial piston pump for generating high pressure for fuel in fuel injection systems of combustion engines
EP04736393A EP1633971B1 (fr) 2003-06-14 2004-06-09 Pompe a pistons radiaux pour production de haute pression pour carburant dans des systemes d'injection de carburant de moteurs a combustion interne
DE502004003060T DE502004003060D1 (de) 2003-06-14 2004-06-09 Radialkolbenpumpe zur kraftstoffhochdruckerzeugung bei kraftstoffeinspritzsystemen von brennkraftmaschinen
JP2006515862A JP2006527329A (ja) 2003-06-14 2004-06-09 内燃機関の燃料噴射システムに高圧燃料を生成するためのラジアルピストンポンプ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10326880A DE10326880A1 (de) 2003-06-14 2003-06-14 Radialkolbenpumpe zur Kraftstoffhochdruckerzeugung bei Kraftstoffeinspritzsystemen von Brennkraftmaschinen
DE10326880.4 2003-06-14

Publications (1)

Publication Number Publication Date
WO2004111435A1 true WO2004111435A1 (fr) 2004-12-23

Family

ID=33482902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/006207 Ceased WO2004111435A1 (fr) 2003-06-14 2004-06-09 Pompe a pistons radiaux pour production de haute pression pour carburant dans des systemes d'injection de carburant de moteurs a combustion interne

Country Status (6)

Country Link
US (1) US20060222517A1 (fr)
EP (1) EP1633971B1 (fr)
JP (1) JP2006527329A (fr)
KR (1) KR20060021377A (fr)
DE (2) DE10326880A1 (fr)
WO (1) WO2004111435A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE026768T2 (en) * 2007-10-12 2016-07-28 Delphi Int Operations Luxembourg Sarl Fuel Pump Improvements
JP4941272B2 (ja) * 2007-12-20 2012-05-30 株式会社デンソー ポンプ
ITMI20080704A1 (it) * 2008-04-17 2009-10-18 Bosch Gmbh Robert Pompa common rail di alta pressione e impianto di alimentazione di combustibile di un motore common rail comprendente tale pompa
DE102008001713A1 (de) * 2008-05-13 2009-11-19 Robert Bosch Gmbh Radialkolbenpumpe
DE102008043993B3 (de) * 2008-11-21 2010-04-29 Thielert Aircraft Engines Gmbh Common-Rail-Hochdruckpumpe
DE102009028378A1 (de) * 2009-08-10 2011-02-17 Robert Bosch Gmbh Hochdruckpumpe
EP2530315A1 (fr) * 2011-06-02 2012-12-05 Delphi Technologies Holding S.à.r.l. Lubrification de pompe à carburant
SE536012C2 (sv) * 2011-09-14 2013-04-02 Scania Cv Ab Anordning för mätning av rörelsen hos pumpkolvens rulle då den rör sig mot kamaxeln i ett insprutningssystem
DE102012223348A1 (de) * 2012-12-17 2014-06-18 Robert Bosch Gmbh Tribosystem für eine Kolbeneinheit und damit ausgestattete hydrostatische Radialkolbenmaschine
JP6206321B2 (ja) 2014-05-14 2017-10-04 株式会社デンソー ポンプ
DE102019106531A1 (de) * 2019-03-14 2020-09-17 Baier & Köppel GmbH & Co. KG Schmierstoffpumpe mit automatisch ankoppelnder Pumpeinheit und Verfahren zum Ankoppeln einer Pumpeinheit an eine Schmierstoffpumpe
EP4055267A4 (fr) * 2019-12-19 2023-08-02 Cummins, Inc. Ensemble rouleau poussoir
WO2022036230A1 (fr) * 2020-08-14 2022-02-17 Cummins Inc. Suiveur de came coulissant
AT525340A1 (de) * 2021-07-16 2023-02-15 Boehlerit Gmbh & Co Kg Ventil für eine Pumpe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905462A1 (de) * 1998-02-10 1999-08-26 Cummins Engine Co Inc Keramischer Plungerkolben für ein Hochdruckkraftstoffsystem eines Innenverbrennungsmotors
EP1310577A1 (fr) * 2001-11-12 2003-05-14 Hitachi, Ltd. Pompe à combustible et moteur à injection directe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378967B1 (fr) * 1989-01-19 1993-01-27 GebràœDer Sulzer Aktiengesellschaft Compresseur à piston
DE19729789A1 (de) * 1997-07-11 1999-01-14 Bosch Gmbh Robert Radialkolbenpumpe zur Kraftstoffhochdruckversorgung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905462A1 (de) * 1998-02-10 1999-08-26 Cummins Engine Co Inc Keramischer Plungerkolben für ein Hochdruckkraftstoffsystem eines Innenverbrennungsmotors
EP1310577A1 (fr) * 2001-11-12 2003-05-14 Hitachi, Ltd. Pompe à combustible et moteur à injection directe

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DE10326880A1 (de) 2004-12-30
EP1633971B1 (fr) 2007-02-28
KR20060021377A (ko) 2006-03-07
JP2006527329A (ja) 2006-11-30
DE502004003060D1 (de) 2007-04-12
US20060222517A1 (en) 2006-10-05
EP1633971A1 (fr) 2006-03-15

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