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1. 发明公开

EP3208456A1 NOZZLE ASSEMBLY AND FUEL INJECTOR 有权转让
标题翻译：喷嘴组件和燃油喷射器
公开(公告)号：EP3208456A1
公开(公告)日：2017-08-23
申请号：EP17155490.0
申请日：2017-02-09
申请人： Delphi International Operations Luxembourg S.à r.l.
发明人： NOYCE, Stephen A. , HARDY, Martin P. , VIT, Romain , TAPIN, Christophe
IPC分类号： F02M51/06 , F02M61/12 , F02M65/00
摘要： ABSTRACT OF THE DISCLOSURE
A nozzle assembly (26) of a fuel injector (10) comprises a nozzle body (28) defining an inner bore extending along a main axis (X), said bore forming at a first extremity a tapered fixed valve seat (42) adapted to receive in sealing contact a complementary tapered needle seating face (52) of a needle valve slidably arranged in the bore, and adapted to translate along the main axis (X) between a closed position where the needle seating face (52) is in sealing contact with the fixed valve seat (42) and, a fully open position where the needle seating face is lifted away from the fixed valve seat.
The nozzle assembly (26) is further provided with a spring assembly radially compressed between the needle and the bore so that in use, when beginning a lift of the needle (36) from the closed position toward the open position, the tapered needle seating face (52) slides and remains in contact against the fixed valve seat (52) instead of coaxially separating immediately.
摘要翻译：本公开的摘要一种燃料喷射器（10）的喷嘴组件（26）包括限定沿主轴线（X）延伸的内孔的喷嘴主体（28），所述孔在第一末端形成锥形固定阀座（其适于以可滑动方式布置在所述孔中且适于沿着所述主轴线在所述针座面的闭合位置和在所述闭合位置之间平移的针阀的互补的锥形针座面（52）与固定阀座（42）密封接触，并且在针座面从固定阀座抬起的完全打开位置。喷嘴组件（26）还设置有径向压缩在针和孔之间的弹簧组件，使得在使用中，当针（36）从闭合位置向打开位置提升时，锥形针座面（52）滑动并保持与固定阀座（52）接触而不是立即同轴分离。

2. 发明公开

EP3228858A1 FUEL INJECTOR 审中-公开
标题翻译：喷油器
公开(公告)号：EP3228858A1
公开(公告)日：2017-10-11
申请号：EP17162433.1
申请日：2017-03-22
申请人： Delphi International Operations Luxembourg S.à r.l.
发明人： BONFIGLI, Fabrizio , GUIGNON, Gael , TAPIN, Christophe , MORIN, Stéphane
IPC分类号： F02M47/02 , F02M57/00 , F02M61/12 , F02M61/16 , F02M65/00 , F02M63/00
CPC分类号： F02M65/005 , F02M47/027 , F02M57/005 , F02M61/12 , F02M61/161 , F02M63/0075 , F02M2200/245
摘要： The present invention provides a fuel injector (1) for use in an internal combustion engine, the fuel injector (1) comprising: a nozzle body (30) having a bore (31) for receiving fuel; a valve needle (20); and a lift stop component (50); wherein the valve needle (20) is slidable within the bore (31) between a closed position in which the valve needle (20) engages a nozzle seat (32) provided by the nozzle body (30) and a position of maximum lift in which the valve needle (20) engages the lift stop component (50); wherein the fuel injector (1) further comprises an engagement element (26) provided on the valve needle (20) at an end of the valve needle closest to the lift stop component (50), wherein the valve needle (20) is arranged to engage the lift stop component (50) via the engagement element (26) when in its position of maximum lift. The present invention also provides a method of manufacturing a fuel injector (1).
摘要翻译：本发明提供一种用于内燃机的燃料喷射器（1），所述燃料喷射器（1）包括：具有用于接收燃料的孔（31）的喷嘴主体（30）阀针（20）; 和升降停止部件（50）; 其特征在于，所述阀针（20）在所述孔（31）内在所述阀针（20）与由所述喷嘴主体（30）提供的喷嘴座（32）接合的关闭位置和最大提升位置之间可滑动，阀针（20）与升降止挡部件（50）接合; 其特征在于，所述燃料喷射器（1）还包括在所述阀针的最靠近所述升程停止部件（50）的一端处设置在所述阀针（20）上的接合元件（26），其中所述阀针（20）当处于其最大提升位置时，通过接合元件（26）接合升降止挡部件（50）。本发明还提供了一种制造燃料喷射器（1）的方法。

3. 发明公开

EP3101262A1 SEALING MEMBRANE FOR PIEZO ACTUATOR 审中-公开
标题翻译： VERSCHLUSSMEMBRANFÜRPIEZOAKTUATOR
公开(公告)号：EP3101262A1
公开(公告)日：2016-12-07
申请号：EP16171591.7
申请日：2016-05-26
申请人： Delphi International Operations Luxembourg S.à r.l.
发明人： TORRESANI, Alexandre , TAPIN, Christophe
IPC分类号： F02M47/02
CPC分类号： F02M47/027 , F02M2200/03 , F02M2200/16 , F02M2200/21 , F02M2200/26
摘要： A sealing member (34) adapted to be arranged inside a tubular sleeve (26) extending along a main axis (X) and in which is arranged a servo actuator (28), said sealing member (34) being a metallic pan-shaped resilient membrane with a centrally holed bottom wall (36) perpendicular to said main axis (X). Also, the sealing member (34) comprises a conical peripheral wall adapted to inwardly deform in order to be press fitted with interference inside the tubular sleeve (26), the bottom wall being non-planar and the peripheral wall and the bottom wall merging in a toroid rounded outer area.
摘要翻译：一种密封构件（34），其适于布置在沿着主轴线（X）延伸的管状套筒（26）的内部，并且其中布置有伺服致动器（28），所述密封构件（34）是金属盘形弹性膜具有垂直于所述主轴线（X）的中心孔底壁（36）。此外，密封构件（34）包括适于向内变形的圆锥形周壁，以便在管状套筒（26）内压配合干涉，底壁是非平面的，并且周壁和底壁汇合在环形圆形外部区域。

4. 发明公开

EP3250812A1 SERVO INJECTOR 审中-公开
标题翻译：伺服注射器
公开(公告)号：EP3250812A1
公开(公告)日：2017-12-06
申请号：EP16700295.5
申请日：2016-01-07
申请人： Delphi International Operations Luxembourg S.à r.l.
发明人： GUIGNON, Gael , VIT, Romain , TAPIN, Christophe , TORRESANI, Alexandre , COOKE, Michael
IPC分类号： F02M63/00 , F02M47/02 , F02M61/16 , H01L41/00
CPC分类号： F02M63/0026 , F02M47/027 , F02M61/167 , F02M2200/50 , H01L41/09
摘要： A piezoelectric control valve (30) for a servo injector (10) has a piezoelectric actuator (32) which comprises an encapsulating tube (54) extending along a main axis (X) from a first extremity (56) to a second extremity closed by a closing member (58) and, a piezoelectric stack (76) axially compressed inside the encapsulating tube (54) between an upper extremity in contact with the inner face (60) of the closing member (58) and, a lower extremity in contact with a pusher member (78) adapted to cooperate with a valve member (36) in order to open or close a return orifice. The piezoelectric control valve (30) further comprises an adjusting member (64) adapted, in use, to permanently maintain a compression force (Fl) in the encapsulating tube (54) independently of the energizing state of the piezoelectric stack (76) and of the thermal expansion of the injector (10).

5. 发明公开

EP3218594A1 HYDRAULIC LASH ADJUSTER ARRANGED IN A SERVO INJECTOR 审中-公开
标题翻译：在伺服注射器中安装的液压调节器
公开(公告)号：EP3218594A1
公开(公告)日：2017-09-20
申请号：EP15784021.6
申请日：2015-10-20
申请人： Delphi International Operations Luxembourg S.à r.l.
发明人： COOKE, Michael , GENCO, Callisto , TAPIN, Christophe , GUIGNON, Gael
IPC分类号： F02M61/16
CPC分类号： F02M61/167 , F02M2200/50 , F02M2200/703
摘要： A hydraulic lash adjuster (20) adapted to be interposed in a hydraulic volume (V), between an actuator (18) and a control valve assembly (22) of a servo injector (10), said volume (V) being, in use, filled with fuel. The adjuster (20) comprises a lower piston (52) in which is slidably arranged an upper piston (46), an external spring (72) and an internal spring (64), both springs (72, 64) biasing the upper piston (46) toward the actuator (18). The lower piston (52) has a cylindrical cup-like shape with a peripheral wall (54) and a bottom wall (58) on which is arranged the internal spring (64) compressed between said bottom wall (58) of the lower piston (52) and the under- face of the upper piston (46).
摘要翻译：一种液压间隙调节器（20），其适于插入伺服注射器（10）的致动器（18）和控制阀组件（22）之间的液压体积（V）中，所述体积（V）在使用中，充满燃料。调节器20包括其中可滑动地布置有上活塞46，外弹簧72和内弹簧64的下活塞52，两弹簧72,64将上活塞（46） 46）朝向致动器（18）。下活塞（52）具有圆柱形杯状形状，其具有周壁（54）和底壁（58），内弹簧（64）被压缩在下活塞的底壁（58） 52）和上活塞（46）的底面。

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