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1. WO2014119471 - FUEL INJECTION VALVE

Publication Number WO/2014/119471
Publication Date 07.08.2014
International Application No. PCT/JP2014/051436
International Filing Date 24.01.2014
IPC
F02M 61/18 2006.1
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/-F02M57/94
16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02-F02M61/14132
18Injection nozzles, e.g. having valve-seats
F02M 51/06 2006.1
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
CPC
F02M 51/0671
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
0664having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
0671the armature having an elongated valve body attached thereto
F02M 61/12
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
04having valves ; , e.g. having a plurality of valves in series
10Other injectors with elongated valve bodies, i.e. of needle-valve type
12characterised by the provision of guiding or centring means for valve bodies
F02M 61/1813
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
1813Discharge orifices having different orientations with respect to valve member direction of movement, e.g. orientations being such that fuel jets emerging from discharge orifices collide with each other
F02M 61/1833
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
1833Discharge orifices having changing cross sections, e.g. being divergent
F02M 61/184
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
184Discharge orifices having non circular sections
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
Applicants
  • 日立オートモティブシステムズ株式会社 HITACHI AUTOMOTIVE SYSTEMS, LTD. [JP]/[JP]
Inventors
  • 石井 英二 ISHII Eiji
  • 安部 元幸 ABE Motoyuki
  • 安川 義人 YASUKAWA Yoshihito
  • 小倉 清隆 OGURA Kiyotaka
  • 江原 秀治 EHARA Hideharu
  • 石川 亨 ISHIKAWA Tohru
Agents
  • 井上 学 INOUE Manabu
Priority Data
2013-01905904.02.2013JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) FUEL INJECTION VALVE
(FR) SOUPAPE D'INJECTION DE CARBURANT
(JA) 燃料噴射弁
Abstract
(EN) This fuel injection valve used in an internal combustion engine shortens the spray reach distance. This fuel injection valve is provided with a seat member which has a conical seat which comes into contact with the valve body to seal in fuel, and inlet openings of multiple fuel injection holes on the conical seat, wherein the injection hole axes connecting the center of the outlet and the inlet of the fuel injection holes are configured to be disposed along different conical surfaces. In an outlet cross-section which is located at the injection hole outlet and which is configured as a plane parallel with the inlet cross-section of the fuel injection hole opening, injection holes are provided in which the direction of the major axis of the ellipse of the outlet cross-section has an inclination angle of greater than 0° to the line in the fuel injection direction obtained by projecting the injection hole axis on the outlet cross-section, and which have an angle of inclination before becoming perpendicular to the straight line of the fuel injection direction.
(FR) L'invention concerne une soupape d'injection de carburant utilisée dans un moteur à combustion interne pour raccourcir la distance de pulvérisation. Cet injecteur de carburant comporte un élément siège qui a un siège conique qui entre en contact avec le siège de soupape à des fins d'obturation du carburant, et des ouvertures d'entrée de multiples trous d'injection de carburant sur le siège conique, les axes des trous d'injection raccordant le centre de la sortie et de l'entrée des trous d'injection de carburant étant configurés pour être disposés le long de différentes surfaces coniques. Dans une section transversale de sortie qui est située au niveau de la sortie du trou d'injection et qui est configurée sous la forme d'un plan parallèle à la section transversale d'entrée de l'ouverture du trou d'injection de carburant, des trous d'injection sont mis en oeuvre dans lesquels la direction de l'axe majeur de l'ellipse de la section transversale de sortie a un angle d'inclinaison de plus de 0° par rapport à la ligne dans la direction d'injection de carburant obtenue par la projection de l'axe des trous d'injection sur la coupe transversale de sortie, et qui ont un angle d'inclinaison avant de devenir perpendiculaires par rapport à la ligne droite de la direction d'injection de carburant.
(JA)  内燃機関に用いる燃料噴射弁において、噴霧到達距離を短くする。 弁体と接して燃料をシートする円錐座面と、前記円錐座面に複数の燃料噴射孔入口開口部を有し、前記燃料噴射孔の入口と出口の中心を結ぶ噴孔軸が、複数の異なる円錐面に沿う様に構成されたシート部材において、前記燃料噴射孔入口開口部の入口断面と平行な平面で構成された、噴射孔出口に位置する出口断面において、前記出口断面の楕円長軸方向が、前記噴孔軸を前記出口断面上に投影して得られる燃料噴射方向の直線に対して、0度より大きな傾斜角を持ち、かつ前記燃料噴射方向の直線に対して直交する前までの傾斜角を持つ噴射孔が設けられたシート部材を有する燃料噴射弁とした。
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