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1. CN102792008 - Fuel injection pump

Office
Chine
Numéro de la demande 201180010840.0
Date de la demande 22.02.2011
Numéro de publication 102792008
Date de publication 21.11.2012
Type de publication A
CIB
F02M 59/44
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
59Pompes spécialement adaptées à l'injection de combustible non couvertes dans les groupes F02M39/-F02M57/141
44Détails, parties constitutives ou accessoires, non couverts dans les groupes F02M59/02-F02M59/42129
F02M 59/36
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
59Pompes spécialement adaptées à l'injection de combustible non couvertes dans les groupes F02M39/-F02M57/141
20Variation du débit du combustible en quantité ou dans le temps
36par des clapets réglant à des instants variables et bien déterminés les ouvertures de combustible
CPC
F02M 59/466
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
44Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; ; Pumps having transducers, e.g. to measure displacement of pump rack or piston
46Valves
466Electrically operated valves, e.g. using electromagnetic or piezo-electric operating means
F02M 59/102
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
02of reciprocating-piston ; or reciprocating-cylinder; type
10characterised by the piston-drive
102Mechanical drive, e.g. tappets or cams
F02M 59/366
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
F02M 59/462
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
44Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; ; Pumps having transducers, e.g. to measure displacement of pump rack or piston
46Valves
462Delivery valves
F02M 63/0033
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
F02M 63/0077
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
007Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
0077Valve seat details
Déposants Yanmar Co., Ltd.
Woodward, Inc.
Inventeurs Egashira Takanori
Sone Kazutaka
Umeda Shinya
Kiechle Stefan
Mandataires shi yanming
Données relatives à la priorité 2010042621 26.02.2010 JP
Titre
(EN) Fuel injection pump
(ZH) 燃料喷射泵
Abrégé
(EN) A fuel injection pump which can be manufactured without an increase in the manufacturing cost and which is configured so that the sealing performance of an electromagnetic spill valve can be maintained with minimum maintenance cost. A fuel injection valve configured in such a manner that an electromagnetic spill valve (20) comprises: a housing (21) in which an insert piece insertion hole (21e) is formed; an insert piece (22) which is formed in a substantially hollow cylindrical shape having a valve seat (22b) on the inner peripheral surface thereof and which is removably mounted in the insert piece insertion hole (21e); a spill valve body (23) which is formed in a substantially solid cylindrical shape having on the outer peripheral surface thereof a seal surface (23b) facing the valve seat (22b) and which is slidably inserted in the insert piece (22) so that the seal surface (23b) is seated on the valve seat (22b); a stopper (24) which can make contact with the spill valve body (23) when the spill valve body (23) is slid to the left side of the insert piece (22) in the axial direction; a solenoid (25) which can slide the spill valve body (23) to the right side in the axial direction; and a spill valve spring (23e) which is the pressing member for pressing the spill valve body (23) to the left side in the axial direction.
(ZH)

本发明以提供能不增大生产成本地,以最小限度的维护成本维持电磁溢流阀的密封性能的燃料喷射泵为目的,提供如下的燃料喷射泵,该燃料喷射泵的电磁溢流阀(20)包括:外壳(21),其形成有内插件内装孔(21e);内插件(22),其形成为在内周面具有阀座(22b)的大致圆筒状,该内插件(22)装卸自由地内装在内插件内装孔(21e)中;溢流阀芯(23),其形成为在外周面上具有与阀座(22b)相对的密封面(23b)的大致圆柱状,该溢流阀芯(23)以密封面(23b)落位于阀座(22b)的方式滑动自由地插入在内插件(22)中;止挡部(24),该止挡部(24)能在溢流阀芯(23)向内插件(22)的轴线方向左侧滑动时与溢流阀芯(23)抵接;电磁元件(25),其能使溢流阀芯(23)向轴线方向右侧滑动;溢流阀弹簧(23e),其是向轴线方向左侧对溢流阀芯(23)施力的施力构件。