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    Fuel injector for an internal combustion engine
    2.
    发明授权
    Fuel injector for an internal combustion engine 失效
    燃油喷射器内燃机

    公开(公告)号：US5067464A

    公开(公告)日：1991-11-26

    申请号：US501030

    申请日：1990-03-29

    申请人： David M. Rix ,  Martin W. Long ,  Thomas R. Lee ,  Douglas E. Dawes

    发明人： David M. Rix ,  Martin W. Long ,  Thomas R. Lee ,  Douglas E. Dawes

    IPC分类号： F02M57/02 ,  F02M59/32 ,  F02M59/36

    CPC分类号： F02M59/366 ,  F02M57/023 ,  F02M57/024 ,  F02M59/32

    摘要： A mechanically pressurized electronic fuel injector for use in internal combustion engines is actuated by the engine valve train during the injection stroke. A control solenoid is mounted to the injector and has its axis inclined with respect to the axis of the injector. A control valve passage has its axis generally coaxial with the central axis of the control solenoid. Machining of the control valve passage is accomplished through the receiving boss for the control solenoid. High pressure sealing plugs, previously required to seal orifices in the exterior surface of the injector body which were needed to provide access to drill or machine the control valve passage, are completely eliminated. The drilling and machining of the control valve passage is accomplished without drilling through the exterior surface of the injector body.

    Method of microdeburring a bore
    4.
    发明授权
    Method of microdeburring a bore 失效
    微孔微孔方法

    公开(公告)号：US5522760A

    公开(公告)日：1996-06-04

    申请号：US293807

    申请日：1994-08-22

    申请人： Deepak Patel ,  Martin W. Long

    发明人： Deepak Patel ,  Martin W. Long

    IPC分类号： B24C3/32 ,  B24C11/00 ,  F02M57/02 ,  F02M59/32 ,  F02M59/44 ,  B24C3/00

    CPC分类号： B24C1/083 ,  B24C11/00 ,  B24C3/327 ,  F02M57/024 ,  F02M59/32 ,  F02M59/44

    摘要： A method of microdeburring a selected portion of bore in a workpiece with a jet of abrasive gas is provided that is particularly applicable to the removal of microburrs at the interface between the timing and metering spill ports in a fuel injector metering barrel and the plunger bore. In the method, the nozzle that emits the abrasive gas is first inserted in and aligned with the bore so that the jet is focused on the microburrs at the interface. The nozzle is then actuated for a time period long enough for the jet to remove the microburrs from the bore, but insufficient for the jet to cause unwanted radiusing of the bore at the interface that could degrade the timing characteristics of the fuel injector. The method also includes the step of interposing a shield within the metering barrel to mask off the finished surface of the barrel from unwanted abrasion. The use of a gaseous, as opposed to a liquid carrier, in combination with the precise alignment of the jet and use of an abrasion shield in the workpiece, results in a precise elimination of unwanted microburrs that is unaccompanied by unwanted widening or radiusing of the ports at their interface with the plunger bore.

    摘要翻译： 提供了一种使用研磨气体射流对工件中的孔的选定部分进行微细去毛刺的方法，其特别适用于在燃料喷射器计量筒和柱塞孔中的定时和计量溢出口之间的界面处移除微量冲击器。 在该方法中，首先将排出磨料气体的喷嘴插入并与孔对准，使得射流聚焦在界面处的微型燃烧器上。 喷嘴然后被致动足够长的时间以使射流从孔中移除微孔，但不足以使射流在界面处引起孔的不希望的辐射，这可能降低燃料喷射器的定时特性。 该方法还包括将屏蔽物插入计量筒内以掩盖桶的成品表面不受不必要的磨损的步骤。 使用与液体载体相反的气体与射流的精确对准以及在工件中使用磨损防护罩的结合，导致精确地消除不期望的加宽或辐射的不需要的微量冲击 端口与它们与柱塞孔的接口。

    Solenoid operated unit fuel injector with supply line backflow pressure relief valve
    5.
    发明授权
    Solenoid operated unit fuel injector with supply line backflow pressure relief valve 失效
    电磁操作单元燃油喷射器，带有供油管路回流溢流阀

    公开(公告)号：US5390851A

    公开(公告)日：1995-02-21

    申请号：US183851

    申请日：1994-01-21

    申请人： Martin W. Long ,  George L. Muntean ,  Paul D. Free

    发明人： Martin W. Long ,  George L. Muntean ,  Paul D. Free

    IPC分类号： F02M57/02 ,  F02M59/30 ,  F02M59/36 ,  F02M59/46 ,  F02M47/02

    CPC分类号： F02M63/005 ,  F02M57/024 ,  F02M59/30 ,  F02M59/366

    摘要： In accordance with a preferred embodiment of the invention, a solenoid operated unit fuel injector, for internal combustion engines of the type which are capable of having distinct timing, metering and injection periods, and in which the same supply line serves for the delivery of fuel to both a timing chamber and a metering chamber, is improved by providing a drilling in the injector barrel which leads directly from the timing fluid flow portion of the fuel supply circuit to an injector fuel drain path, and mounting a C-shaped spring valve on the injector body for controlling dumping of fuel through the drilling at a location above that of the timing and metering spill ports.

    摘要翻译： 根据本发明的优选实施例，一种用于能够具有不同时间，计量和喷射周期的类型的内燃机的电磁操作单元燃料喷射器，并且其中相同的供应管线用于输送燃料 通过在喷射器筒中提供钻孔来改进，其直接从燃料供应回路的定时流体流动部分引导到喷射器燃料排放路径，并且将C形弹簧阀安装在 用于通过在定时和计量溢出口的位置处的钻孔控制倾倒燃料的喷射器主体。