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1. WO2009013041 - HIGH-PRESSURE PUMP FOR A FUEL SYSTEM OF AN INTERNAL COMBUSTION ENGINE

Publication Number WO/2009/013041
Publication Date 29.01.2009
International Application No. PCT/EP2008/056468
International Filing Date 27.05.2008
IPC
F02M 59/36 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
20Varying fuel delivery in quantity or timing
36by variably-timed valves controlling fuel passages
F02M 59/46 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
44Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02-F02M59/42165
46Valves
F02M 63/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/-F02M57/143; Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/-F02M61/193
CPC
F02M 2200/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
2200Details of fuel-injection apparatus, not otherwise provided for
02Fuel-injection apparatus having means for reducing wear
F02M 59/367
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00 ; , e.g. rotary cylinder-block type of pumps
20Varying fuel delivery in quantity or timing
36by variably-timed valves controlling fuel passages ; to pumping elements or overflow passages
366Valves being actuated electrically
367Pump inlet valves of the check valve type being open when actuated
F02M 63/0017
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; ; Combination of fuel pump with other devices, e.g. lubricating oil pump
0012Valves
0014characterised by the valve actuating means
0015electrical, e.g. using solenoid
0017using electromagnetic operating means
F02M 63/0022
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; ; Combination of fuel pump with other devices, e.g. lubricating oil pump
0012Valves
0014characterised by the valve actuating means
0015electrical, e.g. using solenoid
0017using electromagnetic operating means
0021characterised by the arrangement of mobile armatures
0022the armature and the valve being allowed to move relatively to each other
F02M 63/0035
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; ; Combination of fuel pump with other devices, e.g. lubricating oil pump
0012Valves
0031characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
0033Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
0035Poppet valves, i.e. having a mushroom-shaped valve member that moves perpendicularly to the plane of the valve seat
F02M 63/004
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; ; Combination of fuel pump with other devices, e.g. lubricating oil pump
0012Valves
0031characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
004Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE] (AllExceptUS)
  • SCHROEDER, Bernd [DE]/[DE] (UsOnly)
  • BECKER, Markus [DE]/[DE] (UsOnly)
  • SCHNALZGER, Guenther [AT]/[DE] (UsOnly)
  • KIRSCHNER, Martin [DE]/[DE] (UsOnly)
Inventors
  • SCHROEDER, Bernd
  • BECKER, Markus
  • SCHNALZGER, Guenther
  • KIRSCHNER, Martin
Common Representative
  • ROBERT BOSCH GMBH
Priority Data
10 2007 034 038.020.07.2007DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) HOCHDRUCKPUMPE FÜR EIN KRAFTSTOFFSYSTEM EINER BRENNKRAFTMASCHINE
(EN) HIGH-PRESSURE PUMP FOR A FUEL SYSTEM OF AN INTERNAL COMBUSTION ENGINE
(FR) POMPE HAUTE PRESSION POUR UN CIRCUIT DE CARBURANT D'UN MOTEUR À COMBUSTION INTERNE
Abstract
(DE)
Die Erfindung betrifft eine Hochdruckpumpe (3) für ein Kraftstoffsystem (1) einer Brennkraftmaschine mit mindestens einer Einlassventileinrichtung (14) mit einem Ventilelement (31), einem Ventilsitz (33) für das Ventilelement (31) und einem Betätigungsstößel (35), der das Ventilelement (31) zwangsweise in eine Öffnungsrichtung (79) drücken kann. Um eine Hochdruckpumpe (3) für ein Kraftstoffsystem (1) einer Brennkraftmaschine zu schaffen, die noch kostengünstiger herstellbar ist und einen geringeren Verschleiß und somit eine höhere Lebensdauer aufweist, wird vorgeschlagen, dass das Ventilelement (31) Positionierungsmittel (52) aufweist, die das Ventilelement (31) am Ventilsitz (33) zentrieren, wenn es mit diesem in Anlage kommt bzw. mit diesem in Anlage ist.
(EN)
The invention relates to a high-pressure pump (3) for a fuel system (1) of an internal combustion engine, having at least one inlet valve device (14) with a valve element (31), having a valve seat (33) for the valve element (31), and having an actuating plunger (35) which can positively push the valve element (31) in an opening direction. In order to create a high-pressure pump (3) for a fuel system (1) of an internal combustion engine which can be produced even more cost-effectively and which has a lower level of wear and therefore a longer service life, it is proposed that the valve element (31) have positioning means (52) which centre the valve element (31) on the valve seat (33) when said valve element (31) comes into contact or is in contact with said valve seat (33).
(FR)
L'invention concerne une pompe haute pression (3) pour un circuit de carburant (1) d'un moteur à combustion interne, avec au moins un dispositif de soupape d'admission (14) avec un élément de soupape (31), un siège de soupape (33) pour l'élément de soupape (31) et un poussoir de commande (35), qui peut pousser l'élément de soupape (31) de manière forcée dans un sens d'ouverture (79). Pour obtenir une pompe haute pression (3) pour un circuit de carburant (1) d'un moteur à combustion interne, qui peut être fabriquée de manière encore plus économique et qui présente une moindre usure et de ce fait une plus longue durée de vie, on propose que l'élément de soupape (31) comporte des moyens de positionnement (52), qui assurent le centrage de l'élément de soupape (31) sur le siège de soupape (33), lorsqu'il vient s'appliquer ou lorsqu'il est appliqué sur celui-ci.
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