EP1521914B1 - Unite de pompe a pistons radiaux - Google Patents

Unite de pompe a pistons radiaux Download PDF

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Publication number
EP1521914B1
EP1521914B1 EP03740096A EP03740096A EP1521914B1 EP 1521914 B1 EP1521914 B1 EP 1521914B1 EP 03740096 A EP03740096 A EP 03740096A EP 03740096 A EP03740096 A EP 03740096A EP 1521914 B1 EP1521914 B1 EP 1521914B1
Authority
EP
European Patent Office
Prior art keywords
pump
radial piston
housing
fuel
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.)
Expired - Fee Related
Application number
EP03740096A
Other languages
German (de)
English (en)
Other versions
EP1521914A1 (fr
Inventor
Ngoc-Tam Vu
Uwe Nigrin
Johann Schneider
Ludmilla Graf
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP1521914A1 publication Critical patent/EP1521914A1/fr
Application granted granted Critical
Publication of EP1521914B1 publication Critical patent/EP1521914B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • F02M39/005—Arrangements of fuel feed-pumps with respect to fuel injection apparatus
    • 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
    • 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
    • F02M59/445—Selection of particular materials
    • 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
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F04B23/103—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type being a radial piston pump
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/12—Combinations of two or more pumps the pumps being of different types at least one pump being of the rotary-piston positive-displacement 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • 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
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0436—Iron
    • F05C2201/0439—Cast iron
    • F05C2201/0442—Spheroidal graphite cast iron, e.g. nodular iron, ductile iron

Definitions

  • the invention relates to a radial piston pump unit for high-pressure fuel generation in fuel injection systems of internal combustion engines, in particular in a common rail injection system.
  • DE 198 48 035 A1 is a radial piston pump for the high-pressure fuel production in fuel injection systems of internal combustion engines, in particular in a common rail injection system already known.
  • the radial piston pump has a housing in which a drive shaft is guided.
  • the drive shaft has an eccentric portion on which a cam ring is guided.
  • On the cam preferably support several, with respect to the drive shaft radially in the pump housing longitudinally movably guided pump piston.
  • Each pump piston is assigned a suction valve and a pressure valve. Via the suction valve, fuel is supplied from the low-pressure region to the pump piston. After pressure buildup, the compressed fuel is drained via the pressure valve.
  • Such a radial piston pump is usually preceded by a fuel priming pump, which supplies the fuel from the fuel tank of the high-pressure pump.
  • the fuel feed pump is usually driven by an electric motor or via the camshaft.
  • the prefeed pump can be seated directly on the camshaft or driven by a belt. Due to the limited space in the engine compartment, it is necessary to build the high-pressure fuel pump and the feed pump as compact as possible.
  • the DE 197 36 160 A1 Therefore proposes to arrange the fuel feed pump on or in the pump housing of the radial piston pump and the drive shaft of the radial piston pump drive.
  • a clutch is interposed between the drive shaft of the radial piston pump and the shaft of the prefeed pump.
  • the DE 199 13 774 A1 discloses a fuel delivery unit for a fuel injection system, in particular a common rail system, comprising a high-pressure pump and a fuel delivery pump comprising two rotating gears engaged in a pump chamber, the fuel from a suction space connected to a reservoir along one between the end surfaces of the gears and promote the conveyor channel formed in the peripheral wall of the pump chamber in a pressure chamber connected to the high pressure pump, or one of the gears is driven by a drive shaft.
  • the DE 24 36 321 discloses a hydraulic double pump with a front pump and a rear-mounted pump, a mounted in the front pump with at least two bearings and the housing of the front pump on both sides for pushing a drive or the rear pump towering shaft and an arrangement for centering the housing of the front pump and rear pump with respect to Axis of the shaft.
  • the invention is characterized in that the radial piston pump has a drive shaft having a cantilevered end portion, with a tooth profile, for receiving a Kraftstoffvor suitmpe, the pump housing is designed as a pot housing, the cantilevered end portion of the drive shaft on the pump housing open to the pot side is located and the pump housing is closed by a flanged pot lid, the pot lid is designed such that it simultaneously forms a pump chamber of the fuel priming pump, and the pot lid includes a flow control valve.
  • the advantage of the flying bearing is an extremely compact design of the radial piston pump unit, since a third storage of the drive axle is saved. Due to the tooth profile, the fuel delivery pump only has to be plugged onto the shaft and secured. There are no additional components such as a clutch necessary. As a result, the radial width of the radial piston pump unit can be further reduced. Another advantage resulting from the compact arrangement of the high pressure pump and the fuel feed pump is that the line from the fuel feed pump to the suction valve of the high pressure pump can be minimized. The advantage that the pot lid includes a flow control valve is that this makes a very compact design of the radial piston pump is possible.
  • the two sections are each perpendicular to the shaft axis, but are shifted from each other at a certain angle. This is necessary because the individual components of the radial piston pump unit are distributed on the circumference and only so all components can be displayed.
  • a drive shaft 2 ( FIG. 1 ) is mounted in the pump housing 1 via a first shaft bearing 9a and a second shaft bearing 9b.
  • the drive shaft 2 has an eccentric section 3.
  • On the eccentric 3 a lifting ring 4 is arranged.
  • On the cam 4 preferably three in the radial direction to the drive axis movable, spring-loaded pump piston 5 ( FIG. 2 ).
  • the pump piston 5 are preferably 120 ° offset from each other, arranged in a radial plane to the axis of the drive shaft 2, in the pump housing 1.
  • the drive shaft 2 has a cantilevered end portion 6, which is at the same time the drive of a fuel feed pump 8. For receiving the fuel feed pump 8, the end bearing 6 cantilevered on a tooth profile 7.
  • the pump housing 1 is designed as a pot housing.
  • the cantilevered end of the drive shaft 2 is seated on the pump housing 1 open pot side.
  • the open pot side of the pump housing 1 is closed by a flanged pot lid 31.
  • the pot lid 31 is designed such that it simultaneously forms a pump chamber 32 of the fuel feed pump 8.
  • the fuel inlet connection 10, a flow channel 12, a lubrication bore 14 and a volume flow control valve 16 are in the pot lid 31 accommodated. As a result, a very compact design of the radial piston pump unit is possible.
  • the fuel enters, through the fuel inlet connection 10, in the pot lid 31, in the radial piston pump unit.
  • the fuel passes to the fuel feed pump 8 via the flow channel 12.
  • the flow channel is configured in such a way that a filling of the pump chamber 32 on both sides is possible.
  • the fuel passes with a pre-pressure of about 5-10 bar from the fuel feed pump 8 and passes from there into the flow control valve 16, which saves space in the top cover 31st is integrated. From the volume flow control valve 16, the fuel then passes to a control disk 18.
  • the control disk 18 serves to distribute the fuel evenly distributed on the circumference suction valves. For this purpose, a circumferential annular groove 19 is provided on the control disk 16.
  • Each pump piston 5 is associated with a respective suction valve 24 and a pressure valve 28.
  • the suction valve 24 opens and fuel can flow into the cylinder chamber 26.
  • the compression stroke of the pump piston 5 the fuel in the cylinder chamber 26 is compressed.
  • both the suction valve 24 and the pressure valve 28 are closed.
  • the pressure valve 28 opens and the fuel can flow into the high pressure line.
  • FIG. 3 shows a section through the control disk 18.
  • the cutting axis is in FIG. 2 marked by the axis EE '.
  • the control disk 16 is fixedly connected to the pump housing 1.
  • the control disk 18 has deformation pockets 33, which allow an elastic deformation of the control disk 18, in particular during start-up of the drive shaft 2.
  • the control disk 18 has a pressure limiting valve 30 for the Fuel feed 8.
  • Vor fundamentalpumpe is particularly suitable a vane pump or a Sperrulatelpumpe.
  • FIG. 4 shows a schematic representation of a radial piston pump unit.
  • a flat surfaces 36 and a flat surface 37 are arranged, which serve to receive the pump ports 39 and 40.
  • the high pressure accumulator 41 integrated in the pump housing, which is shown by the dashed lines.
  • the high-pressure accumulator 41 can advantageously be integrated into the pump housing 1, since the design of the pump housing 1 as a high-pressure-resistant component at certain points of the pump housing 1 sufficient material reserves are available to integrate the high-pressure accumulator 41.
  • the integration of the high pressure accumulator in the pump housing offers, if at the same time a pressure control valve 42 is integrated into the high pressure accumulator.
  • the high pressure accumulator 41 is, on the right side in the drawing, connected to the pressure regulating valve 42. On the left in the drawing page is a line to port 40
  • the pump housing 1 can be manufactured inexpensively from nodular cast iron. If very high pressures are to be realized with the radial piston pump unit, the pump housing 1 should preferably be made of nodular cast iron with a bainitic structure or as a steel forging.
  • the pot lid 31 may preferably be made of die-cast aluminum or plastic.
  • the control disk 16 may preferably be made of steel, plastic or aluminum.
  • To the pump housing 1 may preferably be provided a flange for direct attachment of the radial piston pump unit on the engine.

Landscapes

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

Abstract

L'invention concerne une unité de pompe à pistons radiaux destinée à un système d'injection haute pression, comportant un carter de pompe (1) dans lequel est logé un arbre d'entraînement (2) présentant une section excentrique (3). Ladite section excentrique (3) constitue un siège pour un anneau de levage (4) déplaçant au moins un piston actionné par ressort (5) pouvant être déplacé radialement par rapport à l'axe d'entraînement (2). Selon l'invention, l'arbre d'entraînement (2) est conçu de manière à présenter une partie terminale (6) logée de façon flottante, constituant simultanément un entraînement d'une pompe à carburant (8).

Claims (8)

  1. Unité de pompe à pistons radiaux pour des systèmes d'injection sous haute pression, comportant
    - un carter (1), dans lequel
    - est monté un arbre d'entraînement (2) avec une partie excentrée (3), sur laquelle
    - est logée une bague de levage (4), qui met en mouvement au moins
    - un piston (5) d'une pompe à pistons radiaux, lequel est mobile dans la direction radiale par rapport à l'axe d'entraînement, et sollicité par ressort, ainsi que
    - une pompe d'acheminement du carburant, montée en amont de la pompe à pistons radiaux, sachant que
    l'arbre d'entraînement (2) comporte une zone d'extrémité (6) montée en porte-à-faux, avec un profil denté, destinée à recevoir la pompe d'acheminement du carburant (8),
    - le carter (1) de la pompe est réalisé en forme de pot,
    - la zone d'extrémité (6) de l'arbre d'entraînement (2), montée en porte-à-faux, est située sur le côté du pot ouvert vers le carter (1) de la pompe, et le carter (1) de la pompe est fermé par un couvercle (31) assemblé par bridage, et
    - le couvercle est réalisé de telle sorte qu'il forme en même temps une chambre de la pompe d'acheminement du carburant,
    caractérisée en ce que le couvercle (31) comporte une vanne de réglage du flux volumétrique (16), par laquelle est réglé le flux de carburant depuis la pompe d'acheminement du carburant vers la pompe à pistons radiaux.
  2. Pompe à pistons radiaux selon la revendication 1, caractérisée en ce que dans le couvercle sont logés en plus un raccord d'admission du carburant (10), un conduit de circulation (12) et une forure pour lubrifiant (14).
  3. Pompe à pistons radiaux selon la revendication 1 ou 2, caractérisée en ce que le conduit de circulation (12) est configuré de telle sorte qu'un remplissage sur les deux côtés de la chambre de pompe (32) est possible.
  4. Pompe à pistons radiaux selon l'une quelconque des revendications précédentes, caractérisée en ce que la pompe d'acheminement du carburant (8) est une pompe à palettes.
  5. Pompe à pistons radiaux selon l'une quelconque des revendications précédentes, caractérisée en ce que la pompe d'acheminement du carburant (8) est une pompe à pales d'arrêt.
  6. Pompe à pistons radiaux selon l'une quelconque des revendications précédentes, caractérisée en ce que le carter (1) de la pompe est réalisé sous la forme d'une pièce en fonte à graphite sphéroïdal ou sous la forme d'une pièce forgée en acier.
  7. Pompe à pistons radiaux selon l'une quelconque des revendications précédentes, caractérisée en ce que le couvercle (31) est réalisé en aluminium coulé sous pression ou en matière plastique.
  8. Pompe à pistons radiaux selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un système de bride est prévu sur le carter (1) de la pompe pour la fixation directe au moteur.
EP03740096A 2002-06-26 2003-06-17 Unite de pompe a pistons radiaux Expired - Fee Related EP1521914B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10228552 2002-06-26
DE10228552A DE10228552B9 (de) 2002-06-26 2002-06-26 Radialkolbenpumpeneinheit
PCT/DE2003/002024 WO2004003385A1 (fr) 2002-06-26 2003-06-17 Unite de pompe a pistons radiaux

Publications (2)

Publication Number Publication Date
EP1521914A1 EP1521914A1 (fr) 2005-04-13
EP1521914B1 true EP1521914B1 (fr) 2010-08-25

Family

ID=29761429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03740096A Expired - Fee Related EP1521914B1 (fr) 2002-06-26 2003-06-17 Unite de pompe a pistons radiaux

Country Status (5)

Country Link
US (1) US7118350B2 (fr)
EP (1) EP1521914B1 (fr)
JP (1) JP2005535820A (fr)
DE (2) DE10228552B9 (fr)
WO (1) WO2004003385A1 (fr)

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CN104358664A (zh) * 2014-09-17 2015-02-18 西安交通大学 一种端面配油的无轴向力双列径向柱塞泵

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DE10349310B3 (de) * 2003-10-23 2005-05-19 Siemens Ag Radialkolbenpumpe für Common Rail Einspritzsysteme
US7418887B2 (en) * 2005-06-21 2008-09-02 Dana Automotive Systems Group, Llc Integral accumulator/pump housing
DE102005050849A1 (de) * 2005-10-24 2006-12-28 Siemens Ag Hochdruckpumpeneinrichtung für ein Kraftstoffeinspritzsystem
DE102006017036A1 (de) 2006-04-11 2007-10-18 Siemens Ag Radialkolbenpumpe zur Kraftstoff-Hochdruckversorgung bei einer Brennkraftmaschine
DE102006017037B4 (de) * 2006-04-11 2015-09-17 Continental Automotive Gmbh Radialkolbenpumpe zur Kraftstoffhochdruckversorgung bei einer Brennkraftmaschine
DE102006034768A1 (de) * 2006-07-27 2008-01-31 Siemens Ag Radialkolbenpumpeneinheit zur Kraftstoff-Hochdruckversorgung bei Kraftstoff-Einspritzsystemen
DE102006039323B3 (de) * 2006-08-22 2007-08-23 Siemens Ag Fluidpumpeneinheit
DE102007021593A1 (de) * 2007-05-08 2008-11-13 Continental Automotive Gmbh Kraftstoffpumpe für ein Einspritzsystem einer Brennkraftmaschine
DE102007032103B4 (de) * 2007-05-16 2022-02-24 Robert Bosch Gmbh Pumpeneinheit mit einer Hauptpumpe und einer in ihrem Fördervolumen verstellbaren Ladepumpe
DE102007050808A1 (de) * 2007-10-24 2009-04-30 Robert Bosch Gmbh Hochdruckkraftstoffpumpe
JP4475324B2 (ja) * 2007-12-21 2010-06-09 株式会社デンソー 燃料噴射ポンプ
ITMI20080288A1 (it) * 2008-02-22 2009-08-23 Bosch Gmbh Robert Pompa di alta pressione per alimentare combustibile ad alta pressione ad un motore a combustione interna
EP2107244A1 (fr) * 2008-04-04 2009-10-07 Robert Bosch Gmbh Dispositif de pompage pour fournir du carburant haute pression à un système d'injection de carburant
DE502008002399D1 (de) * 2008-07-08 2011-03-03 Continental Automotive Gmbh Pumpeneinheit zur Förderung eines Fluids
ITMI20081470A1 (it) * 2008-08-05 2010-02-06 Bosch Gmbh Robert Pompa di alta pressione per alimentare combustibile a un motore a combustione interna
DE102008043444A1 (de) 2008-11-04 2010-05-06 Robert Bosch Gmbh Pumpenanordnung
DE102008057699A1 (de) * 2008-11-17 2010-05-20 Continental Mechanical Components Germany Gmbh Hochdruckpumpe
ITMI20091679A1 (it) * 2009-09-30 2011-04-01 Bosch Gmbh Robert Impianto di alimentazione carburante ad un motore a combustione interna
DE102010001252A1 (de) * 2010-01-27 2011-07-28 Robert Bosch GmbH, 70469 Kraftstoffeinspritzsystem mit integriertem Hochdruckspeicher an einem Zylinderkopf
DE102010054416A1 (de) * 2010-12-14 2012-06-14 Robert Bosch Gmbh Spülanordnung für Tribokontaktflächen und Flügelzellpumpen mit einer solchen Anordnung
GB2487376A (en) * 2011-01-19 2012-07-25 Edwards Ltd Two material pump stator for corrosion resistance and thermal conductivity
ITMI20120107A1 (it) * 2012-01-30 2013-07-31 Bosch Gmbh Robert Pompa di alta pressione per alimentare combustibile, preferibilmente gasolio, ad un motore a combustione interna
ITUB20159736A1 (it) * 2015-12-21 2017-06-21 Bosch Gmbh Robert Gruppo di pompaggio per alimentare combustibile, preferibilmente gasolio, ad un motore a combustione interna
WO2017175945A1 (fr) * 2016-04-06 2017-10-12 Lg Electronics Inc. Compresseur actionné par moteur
DE102018215132A1 (de) * 2018-09-06 2020-03-12 Ford Global Technologies, Llc Hochdruckpumpe für eine Treibstoffzufuhr eines Verbrennungsmotors

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EP1521914A1 (fr) 2005-04-13
DE50313020D1 (de) 2010-10-07
DE10228552B4 (de) 2006-02-09
WO2004003385A1 (fr) 2004-01-08
JP2005535820A (ja) 2005-11-24
DE10228552B9 (de) 2007-08-23
DE10228552A1 (de) 2004-01-22
US7118350B2 (en) 2006-10-10
US20050100448A1 (en) 2005-05-12

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