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    FUEL INJECTOR
    1.
    发明申请
    FUEL INJECTOR 审中-公开
    喷油器

    公开(公告)号：WO2011054925A1

    公开(公告)日：2011-05-12

    申请号：PCT/EP2010/066896

    申请日：2010-11-05

    Applicant: DELPHI TECHNOLOGIES HOLDING S.À.R.L. ,  CANEPA-ANSON, Thomas

    Inventor： CANEPA-ANSON, Thomas

    IPC: F02M63/00 ,  F02M47/02 ,  F16K31/06 ,  H01F7/08 ,  H01F7/16

    CPC classification number: F02M63/0015 ,  F02M47/027 ,  F02M63/0019 ,  F02M2200/08 ,  H01F7/1638

    Abstract: A fuel injector (300) comprising a solenoid actuator (200) and a housing is disclosed. The housing comprises a first housing body (302) having a recess (308) for receiving the actuator (200) and an end face (303), and a second housing body (304) for receiving the valve member (232) and having a sealing face (305) sealable against the end face (303) of the first housing body (302). The actuator comprises a generally cylindrical core member (202) having a longitudinal axis (A) and defining, at an end thereof, an inner pole face (210) of the actuator, a wire coil (212) disposed around the core member (202) and arranged to be connected to a power source in use so as to generate a magnetic field around the coil, an outer ring (218) arranged concentrically around the end of the core member (202) and defining an outer pole face (220) of the actuator, and a support ring (216) of non-magnetic material having a relatively low magnetic permeability, the support ring (216) being disposed between the end of the core member (202) and the outer ring (218). In one embodiment, the actuator (200) is receivable in a recess (308) in a housing (302), and is arranged such that substantially all of the flux in a part of a magnetic circuit defined by the magnetic field is guided to pass between the outer ring (218) and the housing (302) in use of the actuator. At least the outer pole face (220) is coplanar with the end face (303) of the first housing body (302).

    Abstract translation: 公开了一种包括螺线管致动器（200）和壳体的燃料喷射器（300）。 壳体包括具有用于接收致动器（200）和端面（303）的凹部（308）的第一壳体（302）和用于接收阀构件（232）并具有 密封面（305）可密封抵靠第一壳体主体（302）的端面（303）。 致动器包括具有纵向轴线（A）并且在其一端限定致动器的内极面（210）的大致圆柱形的芯构件（202），围绕芯构件（202）设置的线圈（212） ），并且布置成在使用中被连接到电源，以便在线圈周围产生磁场;外圈（218），其围绕所述芯构件（202）的端部同心设置并且限定外极面（220）， 以及具有相对低磁导率的非磁性材料的支撑环（216），所述支撑环（216）设置在所述芯构件（202）的端部和所述外环（218）之间。 在一个实施例中，致动器（200）可接收在壳体（302）中的凹部（308）中，并且被布置成使得由磁场限定的磁路的一部分中的所有通量被引导到通过 在使用致动器的情况下在外圈（218）和壳体（302）之间。 至少外极面（220）与第一壳体（302）的端面（303）共面。

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