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1. EP2543872 - SOUPAPE D'INJECTION DE CARBURANT

Office
Office européen des brevets (OEB)
Numéro de la demande 10847020
Date de la demande 05.03.2010
Numéro de publication 2543872
Date de publication 09.01.2013
Type de publication B1
CIB
F02M 61/18
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
02MOTEURS À COMBUSTION; ENSEMBLES FONCTIONNELS DE MOTEURS À GAZ CHAUDS OU À PRODUITS DE COMBUSTION
MALIMENTATION EN GÉNÉRAL DES MOTEURS À COMBUSTION EN MÉLANGES COMBUSTIBLES OU EN PRODUITS COMPOSANT CES MÉLANGES
61Injecteurs de combustible non couverts dans les groupes F02M39/-F02M57/108
16Détails non couverts dans les groupes F02M61/02-F02M61/1490
18Buses d'injection, p.ex. comportant des sièges de clapets
CPC
F02M 51/0653
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
51Fuel-injection apparatus characterised by being operated electrically
06Injectors peculiar thereto ; with means directly operating the valve needle
061using electromagnetic operating means
0625characterised by arrangement of mobile armatures
0635having a plate-shaped or undulated armature not entering the winding
0642the armature having a valve attached thereto
0653the valve being an elongated body, e.g. a needle valve
F02M 61/162
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
61Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
162Means to impart a whirling motion to fuel upstream or near discharging orifices
F02M 61/1853
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
61Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
18Injection nozzles, e.g. having valve seats; ; Details of valve member seated ends, not otherwise provided for
1853Orifice plates
F02M 61/1806
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
61Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
18Injection nozzles, e.g. having valve seats; ; Details of valve member seated ends, not otherwise provided for
1806characterised by the arrangement of discharge orifices, e.g. orientation or size
F02M 61/1846
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
61Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
18Injection nozzles, e.g. having valve seats; ; Details of valve member seated ends, not otherwise provided for
1806characterised by the arrangement of discharge orifices, e.g. orientation or size
1846Dimensional characteristics of discharge orifices
F02M 61/186
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
61Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
18Injection nozzles, e.g. having valve seats; ; Details of valve member seated ends, not otherwise provided for
1853Orifice plates
186Multi-layered orifice plates
Déposants TOYOTA MOTOR CO LTD
Inventeurs KANEKO NAOYA
SHIMIZU NOBUYUKI
SAKAI HIROYUKI
KUROKAWA TOSHIKUNI
États désignés
Titre
(DE) KRAFTSTOFFEINSPRITZVENTIL
(EN) FUEL INJECTION VALVE
(FR) SOUPAPE D'INJECTION DE CARBURANT
Abrégé
(EN) An fuel injection valve (1A) has: a needle (3) housed in a valve body (2) in a reciprocable manner; an injection hole plate (4) attached to a front end portion of the valve body (2), the plate (4) having an injection hole connecting an inside and an outside of the valve body (2); and a valve sheet (6) which the needle (3) is attached to or detached from so as to close or open a fuel flow path (10) that reaches the injection hole (7) of the injection hole plate (4) through an outer circumference of the needle (3). The injection hole plate (4) has a recessed portion (15) dented in an axial direction of the needle (3) so as to cause fuel flowing toward the injection hole (7) through the valve sheet (6) to descend lower than a height of an inlet port (20) of the injection hole (7) and then, to turn to ascension so as to reach the inlet port (20) of the injection hole (7) on the injection hole plate (4).
(FR) Une soupape d'injection de carburant (1A) comprend : une aiguille (3) qui est contenue dans un corps de soupape (2) de manière à pouvoir effectuer un mouvement alternatif ; une plaque à buses (4) qui est montée sur l'extrémité avant (2a) du corps de soupape (2) et dans laquelle des trous de buse (7) communiquant avec l'intérieur et l'extérieur du corps de soupape (2) sont formés ; et un siège de soupape (6) sur lequel l'aiguille (3) est supportée et libérée de sorte qu'un trajet d'écoulement à travers toute la périphérie externe de l'aiguille (3) puisse être fermé et ouvert. La plaque à buses (4) comprend un évidement (15) formé à l'intérieur de celle-ci qui est évidé dans la direction de l'axe de l'aiguille (3) afin d'amener le carburant, qui s'écoule en direction des trous de buse (7) après avoir traversé le siège de soupape (6), à descendre le long de la plaque à buses (4) depuis le niveau des admissions (20) des trous de buse (7), à monter, puis à atteindre ensuite les admissions (20) des trous de buse (7).
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