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1. (WO2019063209) ELECTROMAGNETICALLY ACTUATABLE INLET VALVE AND HIGH-PRESSURE PUMP COMPRISING AN INLET VALVE
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Pub. No.: WO/2019/063209 International Application No.: PCT/EP2018/072630
Publication Date: 04.04.2019 International Filing Date: 22.08.2018
IPC:
F02M 59/36 (2006.01) ,F04B 53/10 (2006.01) ,C23F 13/08 (2006.01)
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
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
53
Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/-F04B23/ or F04B39/-F04B47/203
10
Valves; Arrangement of valves
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
F
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES; INHIBITING CORROSION OF METALLIC MATERIAL; INHIBITING INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25247
13
Inhibiting corrosion of metals by anodic or cathodic protection
02
cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
06
Constructional parts, or assemblies of cathodic-protection apparatus
08
Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
Applicants:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
HOLM, Steffen; DE
CICHON, Gabriel; DE
Priority Data:
10 2017 217 489.729.09.2017DE
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 relates to 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. An electromagnetic actuator (60), by means of which the valve member (34) can be moved, is provided, wherein the electromagnetic actuator (60) comprises a solenoid coil (64), a magnetic core (66) and an armature (68) which acts at least indirectly on the valve member (34). The armature is displaceably guided in a recess (76) of a support element (78) in the direction of its longitudinal axis (69). The magnetic core (66) and the support element (78) are surrounded by a housing (70). In the housing (70), at least one sacrificial anode (96) is arranged in an intermediate space (94) between the housing (70) on the one hand and the support element (78) and/or the magnetic core (66) and/or a connecting element (92) connecting the magnetic core (66) and the support element (78) to one another. The at least one sacrificial anode (96) is electrically conductively connected to the support element (78) and/or the magnetic core (66) and/or the connecting element (92). The at least one sacrificial anode (96) consists of a less noble metal than the support element (78) and/or the magnetic core (66) and/or the connecting element (92).
(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) qui est déplaçable entre une position d'ouverture et une position de fermeture. La soupape d'admission comprend un actionneur électromagnétique (60) au moyen duquel l'élément de soupape (34) peut être déplacé, l'actionneur électromagnétique (60) comprenant une bobine magnétique (64), un noyau magnétique (66) et un noyau plongeur (68) qui agit au moins indirectement sur l'élément de soupape (34), lequel noyau plongeur est guidé de manière coulissante, dans la direction de son axe longitudinal (69), dans un logement (76) d'un élément porteur (78). Le noyau magnétique (66) et l'élément porteur (78) sont entourés par un boîtier (70). Au moins une anode sacrificielle (96) est disposée dans le boîtier (70) dans un espace intermédiaire (94) entre le boîtier (70) d'un côté et, de l'autre côté, l'élément porteur (78) et/ou le noyau magnétique (66) et/ou un élément de liaison (92) qui relie l'un à l'autre le noyau magnétique (66) et l'élément porteur (78). Ladite anode sacrificielle (96) est reliée de manière électriquement conductrice à l'élément porteur (78) et/ou au noyau magnétique (66) et/ou à l'élément de liaison (92). Ladite anode sacrificielle (96) se compose dans un métal moins noble que celui de l'élément porteur (78) et/ou du noyau magnétique (66) et/ou de l'élément de liaison (92).
(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) eine Magnetspule (64), einen Magnetkern (66) und einen zumindest mittelbar auf das Ventilglied (34) wirkenden Magnetanker (68) aufweist, der in einer Aufnahme (76) eines Trägerelements (78) in Richtung seiner Längsachse (69) verschiebbar geführt ist. Der Magnetkern (66) und das Trägerelement (78) sind von einem Gehäuse (70) umgeben. Im Gehäuse (70) ist in einem Zwischenraum (94) zwischen dem Gehäuse (70) einerseits und dem Trägerelement (78) und/oder dem Magnetkern (66) und/oder einem den Magnetkern (66) und das Trägerelement (78) miteinander verbindenden Verbindungselement (92) andererseits wenigstens eine Opferanode (96) angeordnet ist. Die wenigstens eine Opferanode (96) ist mit dem Trägerelement (78) und/oder dem Magnetkern (66) und/oder dem Verbindungselement (92) elektrisch leitfähig verbunden. Die wenigstens eine Opferanode (96) besteht aus einem unedleren Metall als das Trägerelement (78) und/oder der Magnetkern (66) und/oder das Verbindungselement (92).
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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, JO, 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)