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    • 4. 发明授权
    • Hydraulically actuated fuel injector with seated pin actuator
    • 液压致动燃油喷射器,带有定位销致动器
    • US06364282B1
    • 2002-04-02
    • US09358990
    • 1999-07-22
    • Thomas G. AusmanSteven Y. Tian
    • Thomas G. AusmanSteven Y. Tian
    • F02M5946
    • F02M57/025F02M59/466
    • An actuation fluid control valve for a hydraulically actuated fuel injector has a valve body having an inlet seat, a bore having a bore axis and a bore wall, an actuation control cavity, a low pressure actuation fluid drain, an actuation fluid inlet for admitting high pressure actuation fluid to the bore from outside the fuel injector, an inlet seat at a border between the actuation control cavity and the bore, and a drain seat at a border between the actuation control cavity and the actuation fluid drain. An actuator is attached with the valve body. An actuation valve member has an inlet pin surface partially defining a fluid entry chamber within the bore and is slidably disposed in the bore in response to the actuator between a first position in which the actuation control cavity is open to the actuation fluid inlet via the fluid entry chamber and the actuation valve member is being held against the drain seat such that the actuation control cavity is fluidly isolated from the actuation fluid drain, and a second position in which the actuation control cavity is open to the actuation fluid drain and the actuation valve member is being held against the inlet seat such that the actuation control cavity is fluidly isolated from the actuation fluid inlet.
    • 用于液压致动燃料喷射器的致动流体控制阀具有阀体,其具有入口座,具有孔轴线的孔和孔壁,致动控制腔,低压致动流体排水口,用于承受高压的致动流体入口 来自燃料喷射器外部的压力致动流体到孔,在致动控制腔和孔之间的边界处的入口座以及在致动控制腔和致动流体排放口之间的边界处的排水座。 执行器与阀体连接。 致动阀构件具有入口销表面,其在孔内部分限定流体入口室,并且响应于致动器可滑动地设置在孔中,致动器在致动控制腔通过流体与致动流体入口打开的第一位置 入口室和致动阀构件被保持抵靠排水座,使得致动控制腔与致动流体排出口流体隔离,并且第二位置,致动控制腔向致动流体排出口和致动阀打开 构件被保持抵靠入口座,使得致动控制腔与致动流体入口流体隔离。
    • 5. 发明授权
    • Hydraulically-actuated fuel injector with intensifier piston always
exposed to high pressure actuation fluid inlet
    • 具有增压器活塞的液压致动燃料喷射器总是暴露于高压致动流体入口
    • US6113000A
    • 2000-09-05
    • US141742
    • 1998-08-27
    • Steven Y. Tian
    • Steven Y. Tian
    • F02M47/00F02M47/02F02M47/04F02M57/02F02M59/10
    • F02M57/026F02M47/027F02M57/025F02M59/105
    • A hydraulically-actuated fuel injector includes an injector body that defines an actuation fluid inlet that is open to a first actuation fluid cavity, and a second actuation fluid cavity that is connected to the first actuation fluid cavity via a connection passage. The injector body also defines at least one actuation fluid drain. A source of relatively high pressure actuation fluid is connected to the actuation fluid inlet. A relatively low pressure reservoir is connected to the at least one actuation fluid drain. A control valve is attached to the injector body and is moveable between a first position in which the second actuation fluid cavity is open to the first actuation fluid cavity, and a second position in which the second actuation fluid cavity is open to the at least one actuation fluid drain. An intensifier piston is movably mounted in the injector body and has a primary hydraulic surface exposed to fluid pressure in the first actuation fluid cavity, and an opposing hydraulic surface exposed to fluid pressure in the second actuation fluid cavity.
    • 液压致动燃料喷射器包括喷射器主体,其限定对第一致动流体腔开放的致动流体入口,以及通过连接通道连接到第一致动流体腔的第二致动流体腔。 喷射器主体还限定至少一个致动流体排出口。 相对高压致动流体的源连接到致动流体入口。 相对低压的储存器连接到至少一个致动流体排放口。 控制阀连接到喷射器主体,并且可在第二位置和第二位置之间移动,在第一位置,第二致动流体腔与第一致动流体腔相通,第二位置中第二致动流体腔向至少一个 致动流体排放。 增压器活塞可移动地安装在喷射器主体中并且具有暴露于第一致动流体腔中的流体压力的主液压表面和暴露于第二致动流体腔中的流体压力的相对液压表面。
    • 6. 发明授权
    • Hydraulically-actuated fuel injector with idle stability port
    • 具有空闲稳定端口的液压致动燃油喷射器
    • US6012429A
    • 2000-01-11
    • US740288
    • 1996-10-25
    • David J. BeattyRalph A. Smith, IIISteven Y. Tian
    • David J. BeattyRalph A. Smith, IIISteven Y. Tian
    • F02M45/00F02M45/06F02M45/12F02M57/02F02M59/10F02M63/02F02M41/00
    • F02M57/026F02M45/00F02M45/066F02M45/12F02M57/025F02M59/105
    • A hydraulically-actuated fuel injector includes an injector body having a nozzle chamber that opens to a nozzle outlet and a plunger bore, and further has a prime spill port and an idle stability port that open to the plunger bore. A hydraulic means for pressurizing fuel in the nozzle chamber includes a plunger mounted to reciprocate in the plunger bore between a retracted position and an advanced position. A portion of the plunger bore and plunger define a fuel pressurization chamber. A needle valve member is mounted to reciprocate in the nozzle chamber between an open position in which the nozzle outlet is open and a closed position in which the nozzle outlet is closed. A portion of the plunger blocks the prime spill port when the plunger is in its retracted position. A different portion of the plunger blocks the idle stability port when the plunger is in its retracted position. The prime spill port opens to the fuel pressurization chamber over part of the plunger stroke between its retracted position and its advanced position. The idle stability port opens to the fuel pressurization chamber over a different part of the plunger stroke between its retracted position and its advanced position. The prime spill port has a relatively unrestricted flow area, whereas the idle stability port has a relatively restricted flow area about equal to that of the nozzle outlet.
    • 液压致动燃料喷射器包括喷射器主体,其具有通向喷嘴出口和柱塞孔的喷嘴室,并且还具有向柱塞孔打开的主溢出口和空闲稳定性端口。 用于对喷嘴室中的燃料进行加压的液压装置包括安装成在缩回位置和前进位置之间在柱塞孔中往复运动的柱塞。 柱塞孔和柱塞的一部分限定了燃料加压室。 针阀构件安装成在喷嘴室中在喷嘴出口打开的打开位置和喷嘴出口关闭的关闭位置之间往复运动。 当柱塞处于其缩回位置时,柱塞的一部分堵塞主溢出口。 当柱塞处于其缩回位置时,柱塞的不同部分阻挡空转稳定性端口。 主溢出口在其缩回位置和其前进位置之间的柱塞行程的一部分上通向燃料加压室。 怠速稳定性口在其缩回位置和其前进位置之间的柱塞行程的不同部分上向燃料加压室开口。 主泄漏口具有相对不受限制的流动面积,而空闲稳定性端口具有大约等于喷嘴出口的相对受限的流动面积。
    • 7. 发明授权
    • Damped solenoid actuated valve and fuel injector using same
    • 阻尼电磁阀致动阀和使用其的燃油喷射器
    • US5967413A
    • 1999-10-19
    • US022152
    • 1998-02-11
    • Steven Y. Tian
    • Steven Y. Tian
    • F02M57/02F02M59/46F02M63/00F16K31/06F02M47/04F02M51/00
    • F16K31/0689F02M57/025F02M59/466F02M2200/306
    • A control valve, preferably for use in a fuel injector, includes a valve body that defines a first passage and a second passage. A solenoid is attached to the valve body and has an armature. A multi piece valve member is attached to the armature and is positioned in the valve body. The multi piece valve member is moveable between a first position in which the first passage is open to the second passage, and a second position in which the first passage is closed to the second passage. The multi piece valve member includes a second valve member piece moveable with respect to a first valve member piece between a contact position in which a portion of the second valve member piece is in contact with the first valve member piece, and a separated position in which the portion is a distance away from the first valve member piece. A damping spring is compressed between the second valve member piece and the first valve member piece when the second valve member piece is in its separated position. The damping spring serves to absorb energy that might otherwise reveal itself as bouncing behavior when the valve member comes in contact with one of its stops.
    • 优选用于燃料喷射器的控制阀包括限定第一通道和第二通道的阀体。 螺线管连接到阀体并具有电枢。 多片阀构件附接到电枢并且定位在阀体中。 多片阀构件可在第一通道与第二通道打开的第一位置和第一通道关闭到第二通道的第二位置之间移动。 多片阀构件包括第二阀构件,该第二阀构件相对于第一阀构件可在第二阀构件的一部分与第一阀构件件接触的接触位置和可分离位置之间移动, 该部分距离第一阀构件一段距离。 当第二阀构件处于其分离位置时,阻尼弹簧在第二阀构件和第一阀构件之间被压缩。 阻尼弹簧用于吸收当阀构件与其止挡件中的一个接触时可能显示为弹跳行为的能量。
    • 9. 发明授权
    • Fuel injector with directly controlled highly efficient nozzle assembly and fuel system using same
    • 燃油喷射器具有直接控制的高效喷嘴组件和使用其的燃油系统
    • US07331329B2
    • 2008-02-19
    • US10195863
    • 2002-07-15
    • Steven Y. TianScott F. ShaferDaniel R. IbrahimRonald D. ShinogleAmy M. Hess
    • Steven Y. TianScott F. ShaferDaniel R. IbrahimRonald D. ShinogleAmy M. Hess
    • F02M37/04
    • F02M63/0225F02M47/027F02M63/0045
    • Reducing leakage within fuel injectors is one way in which the efficiency of the overall fuel injection system can be improved. In most fuel injectors that include a direct control needle valve, the needle valve member is still biased toward a closed position by a spring that is located in a spring chamber connected to a low pressure vent. In many instances, the needle valve member is guided in a tight clearance region adjacent the spring chamber. Since the internal plumbing of the fuel injector is connected to a high pressure rail during and between injection events, static leakage across the guide region of the needle valve member can reduce efficiency. Static leakage is reduced in the present invention by connecting the spring chamber to the common rail instead of to a low pressure vent. Such a fuel injector could find potential application in any directly controlled fuel injection system, but is particularly applicable in common rail systems in which the fuel injector remains fully pressurized between injection events.
    • 减少燃油喷射器内的泄漏是提高总体燃油喷射系统效率的一种方法。 在包括直接控制针阀的大多数燃料喷射器中,针阀构件仍然通过位于连接到低压通风口的弹簧室中的弹簧偏压到关闭位置。 在许多情况下,针阀构件在与弹簧室相邻的紧密间隙区域中被引导。 由于燃料喷射器的内部管道在喷射事件期间和在喷射事件期间连接到高压轨道,所以穿过针阀构件的引导区域的静态泄漏可以降低效率。 通过将弹簧室连接到共轨而不是低压通风口,本发明中静电泄漏减少。 这种燃料喷射器可以在任何直接控制的燃料喷射系统中发现潜在的应用,但是特别适用于燃油喷射器在喷射事件之间保持完全加压的共轨系统中。
    • 10. 发明授权
    • Pilot actuator and spool valve assembly
    • 先导执行器和滑阀组件
    • US06283441B1
    • 2001-09-04
    • US09501751
    • 2000-02-10
    • Steven Y. Tian
    • Steven Y. Tian
    • F16K3112
    • F02M59/466F02M57/025F02M59/105
    • A pilot actuated spool valve assembly includes a valve body that defines a first passage, a second passage and a flow passage. A unitary pilot body is at least partially positioned in the valve body and has a first valve seat and a second valve seat. A pilot member is moveable in the pilot body between an up position in which the pilot member closes the first valve seat and a down position in which the pilot member closes the second valve seat. A spool valve member has a control hydraulic surface and is positioned in the valve body. It is moveable between a first position in which the first passage is open to the flow passage, and a second position in which the second passage is open to the flow passage. At least one of the valve body, the pilot body, the pilot member and the spool valve member define a control volume fluidly connected to the first passage when the pilot member is in one of its up position and its down position. The control hydraulic surface of the spool valve member is exposed to fluid pressure in the control volume. The valve assembly finds its preferred application in a hydraulically actuated fuel injector having a direct control needle valve.
    • 引导致动滑阀组件包括限定第一通道,第二通道和流动通道的阀体。 整体引导体至少部分地定位在阀体中并且具有第一阀座和第二阀座。 先导构件可在引导体中在引导构件关闭第一阀座的上升位置和先导构件关闭第二阀座的下降位置之间移动。 滑阀构件具有控制液压表面并且定位在阀体中。 其可以在第一通道与流动通道打开的第一位置和第二通道对流动通道打开的第二位置之间移动。 当引导构件处于其向上位置和下​​降位置中时,阀体,引导体,引导构件和滑阀构件中的至少一个限定流体连接到第一通道的控制体积。 滑阀构件的控制液压表面暴露于控制体积中的流体压力。 阀组件在具有直接控制针阀的液压致动燃料喷射器中发现其优选应用。