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1. (WO2017148600) ELECTROMAGNETICALLY ACTUATABLE INLET VALVE AND HIGH-PRESSURE PUMP COMPRISING AN INLET VALVE
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Pub. No.: WO/2017/148600 International Application No.: PCT/EP2017/050072
Publication Date: 08.09.2017 International Filing Date: 03.01.2017
IPC:
F04B 49/24 (2006.01) ,F04B 7/00 (2006.01) ,F16K 31/06 (2006.01) ,F02M 59/36 (2006.01) ,F02M 63/00 (2006.01) ,F02M 59/46 (2006.01) ,H01F 7/16 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
49
Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups F04B1/-F04B47/196
22
by means of valves
24
Bypassing
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
7
Piston machines or pumps characterised by having positively-driven valving
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31
Operating means; Releasing devices
02
electric; magnetic
06
using a magnet
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
20
Varying fuel delivery in quantity or timing
36
by variably-timed valves controlling fuel passages
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63
Other 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
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
44
Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02-F02M59/42165
46
Valves
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7
Magnets
06
Electromagnets; Actuators including electromagnets
08
with armatures
16
Rectilinearly-movable armatures
Applicants:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
CICHON, Gabriel; DE
Priority Data:
10 2016 203 516.903.03.2016DE
Title (EN) ELECTROMAGNETICALLY ACTUATABLE INLET VALVE AND HIGH-PRESSURE PUMP COMPRISING AN INLET VALVE
(FR) SOUPAPE D’ADMISSION À COMMANDE ÉLECTROMAGNÉTIQUE ET POMPE HAUTE PRESSION MUNIE D'UNE SOUPAPE D’ADMISSION
(DE) ELEKTROMAGNETISCH BETÄTIGBARES EINLASSVENTIL UND HOCHDRUCKPUMPE MIT EINLASSVENTIL
Abstract:
(EN) The invention proposes an electromagnetically actuatable inlet valve (24) for a high-pressure pump, in particular of a fuel-injection system. The inlet valve (24) has a valve member (34) which can be moved between an open position and a closed position. Provided is an electromagnetic actuator (60), by means of which the valve member (34) can be moved, wherein the electromagnetic actuator (60) has an armature (68) which acts at least indirectly on the valve member (34), a solenoid coil (64) which surrounds the armature (68), and a magnetic core (66), against which the armature (68) comes to rest, at least indirectly, when current is applied to the solenoid coil (64). The armature (68) is displaceably guided in a carrier element (78) and the carrier element (78) and the magnetic core (66) are connected to one another by means of a sleeve-type component (90). A discoid intermediate element (92), which is connected to the sleeve-type element (90), is located between the armature (68) and the end of the magnetic core (66) facing said armature. The intermediate element (92) allows the stress on the magnetic core (66) upon impact of the armature (68) to be reduced. The intermediate element (92) is produced from a non-magnetic material, such that said element also causes magnetic separation between the armature (68) and the magnetic core (66).
(FR) L'invention concerne une soupape d'admission (24) à commande électromagnétique destinée à une pompe haute pression, en particulier d'un système d'injection de carburant. La soupape d'admission (24) présente un élément de soupape (34) mobile entre une position d'ouverture et une position de fermeture. Un actionneur électromagnétique (60) permet le déplacement de l'élément de soupape (34), l'actionneur électromagnétique (60) présentant une armature magnétique (68) agissant au moins indirectement sur l'élément de soupape (34), une bobine magnétique (64) entourant l'armature magnétique (68), et un noyau magnétique (66) sur lequel l'armature magnétique (68) vient au moins indirectement en appui lorsque la bobine magnétique (64) est alimentée, l'armature magnétique (68) étant guidée mobile dans un élément de support (78) et l'élément de support (78) et le noyau magnétique (66) étant reliés l'un à l'autre par l’intermédiaire d’un élément en forme de manchon (90). Entre l’armature magnétique (68) et l’extrémité du noyau magnétique (66) proche de ladite armature se trouve un élément intermédiaire (92) en forme de disque qui est relié à l’élément en forme de manchon (90). La présence de l’élément intermédiaire (92) en forme de disque permet de réduire la contrainte imposée au noyau magnétique (66) lorsque l'armature magnétique (68) vient en appui sur lui. L’élément intermédiaire (92) est réalisé dans un matériau non magnétique de sorte que celui-ci permet également une séparation magnétique entre l’armature magnétique (68) et le noyau magnétique (66).
(DE) Es wird ein elektromagnetisch betätigbares Einlassventil (24) für eine Hochdruckpumpe, insbesondere eines Kraftstoffeinspritzsystems, vorgeschlagen. Das Einlassventil (24) weist ein Ventilglied (34) auf, das zwischen einer Öffnungsstellung und einer Schließstellung bewegbar ist. Es ist ein elektromagnetischer Aktor (60) vorgesehen, durch den das Ventilglied (34) bewegbar ist, wobei der elektromagnetische Aktor (60) einen zumindest mittelbar auf das Ventilglied (34) wirkenden Magnetanker (68), eine den Magnetanker (68) umgebende Magnetspule (64) und einen Magnetkern (66) aufweist, an dem der Magnetanker (68) bei Bestromung der Magnetspule (64) zumindest mittelbar zur Anlage kommt, wobei der Magnetanker (68) in einem Trägerelement (78) verschiebbar geführt ist und wobei das Trägerelement (78) und der Magnetkern (66) über ein hülsenförmiges Bauteil (90) miteinander verbunden sind. Zwischen dem Magnetanker (68) und dem diesem zugewandten Ende des Magnetkerns (66) ist ein scheibenförmiges Zwischenelement (92) angeordnet, das mit dem hülsenförmigen Bauteil (90) verbunden ist. Durch das scheibenförmige Zwischenelement (92) wird die Belastung des Magnetkerns (66) beim Anschlag des Magnetankers (68) verringert. Das Zwischenelement (92) ist aus einem nichtmagnetischen Werkstoff hergestellt, so dass durch dieses auch eine magnetische Trennung zwischen Magnetanker (68) und Magnetkern (66) bewirkt wird.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)