公开(公告)号：EP2999875A4

公开(公告)日：2016-11-16

申请号：EP14800450

申请日：2014-05-21

申请人： WESTPORT POWER INC ,  DELPHI INTERNAT OPERATIONS LUXEMBOURG S À R L

发明人： MEEK GEORGE A ,  PANESAR LUKHBIR ,  WICKSTONE MICHAEL COLIN

IPC分类号： F02M43/04 ,  F02D19/08 ,  F02D41/38 ,  F02M25/00 ,  F02M43/00 ,  F02M45/00 ,  F02M45/10 ,  F02M61/04 ,  F02M61/08 ,  F02M61/18 ,  F02M63/00

CPC分类号： F02M61/10 ,  F02D19/0694 ,  F02D41/0025 ,  F02D41/0027 ,  F02F1/242 ,  F02M43/04 ,  F02M45/00 ,  F02M45/086 ,  F02M45/10 ,  F02M47/027 ,  F02M61/045 ,  F02M61/08 ,  F02M61/182 ,  F02M63/0064 ,  F02M2200/21 ,  F02M2200/46 ,  F02M2547/003 ,  Y02T10/36

公开(公告)号：EP2999877A4

公开(公告)日：2016-11-09

申请号：EP14801244

申请日：2014-05-21

申请人： WESTPORT POWER INC ,  DELPHI INTERNAT OPERATIONS LUXEMBOURG S À R L

发明人： MEEK GEORGE A ,  PANESAR LUKHBIR

IPC分类号： F02M43/04 ,  F02D19/08 ,  F02D41/38 ,  F02M25/00 ,  F02M43/00 ,  F02M47/02 ,  F02M51/06 ,  F02M61/04 ,  F02M61/12

CPC分类号： F02M61/12 ,  F02D19/0694 ,  F02D41/0025 ,  F02D41/0027 ,  F02M43/04 ,  F02M47/025 ,  F02M51/0653 ,  F02M51/0675 ,  F02M63/001 ,  F02M2200/16 ,  F02M2200/46 ,  F02M2200/50 ,  F02M2200/90 ,  F02M2547/006 ,  Y02T10/36

摘要： A fuel injector (100) for an internal combustion engine is disclosed. The fuel injector is particularly suitable for use as a dual fuel injector, and comprises a generally tubular outer valve needle (130), an inner valve needle (140) slidably received in the outer valve needle (130), and a nozzle body assembly (112) comprising a tip part (120) and a needle guide part (118). The tip part (120) defines a seating region (120f) for the outer valve needle (130), and the needle guide part (118) comprises a guide bore (118e) for slidably receiving the outer valve needle (130). In one embodiment, the tip part (120) and the needle guide part (118) are made from different materials, and a biasing spring (148) for the outer valve needle (130) is housed in the nozzle body assembly (112).

摘要翻译： 公开了一种用于内燃机的燃料喷射器（100）。 燃料喷射器特别适合用作双燃料喷射器，并且包括大致管状的外部阀针（130），可滑动地容纳在外部阀针（130）中的内部阀针（140）和喷嘴体组件 112）包括尖端部分（120）和针引导部分（118）。 尖端部分（120）限定用于外部阀针（130）的就座区域（120f），并且针引导部件（118）包括用于可滑动地接收外部阀针头（130）的引导孔（118e）。 在一个实施例中，尖端部分（120）和针引导部分（118）由不同的材料制成，并且用于外部阀针（130）的偏置弹簧（148）容纳在喷嘴体组件（112）中。

公开(公告)号：EP2999876A4

公开(公告)日：2016-12-28

申请号：EP14800820

申请日：2014-05-21

申请人： WESTPORT POWER INC ,  DELPHI INT OPERATIONS LUXEMBOURG S À R L

发明人： MEEK GEORGE A ,  PANESAR LUKHBIR

IPC分类号： F02M43/04 ,  F02D19/08 ,  F02D41/38 ,  F02M25/00 ,  F02M43/00 ,  F02M61/04

CPC分类号： F02M43/04 ,  F02D19/0694 ,  F02D19/10 ,  F02M45/086 ,  F02M47/027 ,  F02M55/025 ,  F02M61/10 ,  F02M61/14 ,  F02M61/16 ,  F02M63/0015 ,  F02M63/0064 ,  F02M2200/40 ,  F02M2200/857 ,  Y02T10/36

摘要： A fuel injector for an internal combustion engine is disclosed. The fuel injector is installable in a cylinder head bore of a cylinder head of the engine and has a body region arranged to be received within the cylinder head bore, and a head region arranged to extend outside the cylinder head bore to protrude from the cylinder head when the injector is installed in the cylinder head bore. The injector includes a first valve needle arranged to control the injection of a gaseous fuel from a first outlet, a second valve needle arranged to control the injection of a liquid fuel from a second outlet, a gaseous fuel inlet for admitting the gaseous fuel to the injector, and a liquid fuel inlet port for admitting the liquid fuel to the injector. The gaseous fuel inlet is disposed in the body region of the injector, and the liquid fuel inlet port is disposed in the head region of the injector. The injector can also include an internal accumulator volume so that an external fuel rail is not necessary.