-
公开(公告)号：US20080022974A1
公开(公告)日：2008-01-31
申请号：US11494581
申请日：2006-07-28
申请人： Alan R. Stockner , Mandi Rae Ferleyko , Benjamin Ray Tower , Bryan D. Moore , Koti Ratnam Padarthy , Fergal Michael O'Shea , Todd Alan Johnson , James Dl
发明人： Alan R. Stockner , Mandi Rae Ferleyko , Benjamin Ray Tower , Bryan D. Moore , Koti Ratnam Padarthy , Fergal Michael O'Shea , Todd Alan Johnson , James Dl
CPC分类号： F02M63/0225 , F02M63/005 , F02M63/0056 , F02M63/025 , F16K17/0406 , F16K17/046 , Y10T137/7738
摘要： A pressure relief valve is provided for a common rail fuel system. The pressure relief valve has a housing with an inlet, an outlet, and a central bore fluidly connecting the inlet and the outlet. The pressure relief valve also has a single valve seat and a first valve element movable to selectively block a flow of fluid through the single valve seat. The pressure relief valve further has a second valve element disposed within the central bore of the housing and movable to selectively block a flow of fluid through the central bore.
摘要翻译： 为共轨燃油系统提供减压阀。 减压阀具有壳体，其具有入口，出口和流体连接入口和出口的中心孔。 减压阀还具有单个阀座和可移动以选择性地阻塞通过单个阀座的流体流动的第一阀元件。 减压阀还具有设置在壳体的中心孔内的第二阀元件，并可移动以选择性地阻挡流经中心孔的流体。
-
公开(公告)号：US06192868B1
公开(公告)日：2001-02-27
申请号：US09220301
申请日：1998-12-23
IPC分类号： F02D4106
CPC分类号： F02D41/062 , F02D41/401 , Y02T10/44
摘要： The present invention provides an apparatus and method for controlling the fuel injection timing of a fuel injector in order to start an engine. The temperature of the engine is sensed and an engine temperature signal indicative of the temperature of actuating fluid used to actuate the injector is generated. A desired piston firing position is determined, and an injection command signal is generated, whose timing oscillates between a time range that is a function of said temperature and said desired piston firing position, to control the fuel injection timing.
摘要翻译： 本发明提供了一种用于控制燃料喷射器的燃料喷射正时以便起动发动机的装置和方法。 感测发动机的温度，并且产生指示用于致动喷射器的致动流体的温度的发动机温度信号。 确定期望的活塞点火位置，并且产生一个喷射命令信号，其定时在作为所述温度的函数的时间范围和所述期望的活塞点火位置之间振荡，以控制燃料喷射正时。
-
公开(公告)号：US6000379A
公开(公告)日：1999-12-14
申请号：US978229
申请日：1997-11-25
CPC分类号： F02D41/20 , F02M57/025 , F02M59/105 , F02M59/466 , F02D2041/2017 , F02D2041/2037 , F02D2200/0602 , F02D2250/31
摘要： A method of controlling hydraulically actuated electrically controlled unit fuel injectors to operate quietly and with less seat wear on a valve disposed therein is disclosed. The disclosed method comprises controlling the pressure of a high pressure working fluid which operates the injector to inject the proper amount of fuel in the cylinders of an internal combustion engine; and responding to changes in the pressure of the working fluid to vary the timing duration and amplitude of a current pulse which activates a stator that draws an armature to the stator and opens a first seat of the poppet valve or other flow regulating device against a spring bias to allow the high pressure working fluid into the injector and closes a second seat to prevent the working from draining from the injector to allow the working fluid to operate the injector. Upon deactivation of the stator the spring bias moves the armature away from the stator, closes the first seat and opens the second seat of the poppet valve in a manner that reduces noise and wear on the seats.
摘要翻译： 公开了一种控制液压致动的电控单元燃料喷射器的方法，其安静地操作并且在设置在其上的阀上具有较少的座椅磨损。 所公开的方法包括控制操作喷射器的高压工作流体的压力，以将适量的燃料喷射到内燃机的气缸中; 以及响应于所述工作流体的压力的变化，以改变激活定子的定时持续时间和振幅，该定子将电枢牵引到所述定子并打开所述提升阀或其它流量调节装置的第一座部来抵抗弹簧 偏压以允许高压工作流体进入注射器并且关闭第二座椅以防止工作从喷射器排出以允许工作流体操作喷射器。 在停止定子时，弹簧偏置使电枢远离定子移动，闭合第一座位并以降低座椅上的噪音和磨损的方式打开提升阀的第二座。
-
公开(公告)号：US5870995A
公开(公告)日：1999-02-16
申请号：US872333
申请日：1997-06-10
CPC分类号： F02M55/025 , F02M61/14
摘要： A hydraulically actuated fuel injection system includes an actuation fluid supply pipe having a flange. A hydraulically actuated fuel injector has a centerline, at least two different clamping surfaces and a side surface with an actuation fluid inlet. The clamping surfaces are positioned on opposite sides of the centerline. A clamp is attached to the flange of the actuation fluid supply pipe around the centerline of the injector while bearing against the at least two different clamping surfaces. The clamp allows for reliable sealing in a small space while minimizing internal distortion to injector components.
摘要翻译： 液压致动燃料喷射系统包括具有凸缘的致动流体供应管。 液压致动的燃料喷射器具有中心线，至少两个不同的夹紧表面和具有致动流体入口的侧表面。 夹紧表面位于中心线的相对两侧。 夹紧件围绕喷射器的中心线附接到致动流体供应管的凸缘，同时抵靠至少两个不同的夹紧表面。 夹具允许在小空间中可靠的密封，同时最小化喷射器部件的内部变形。
-
公开(公告)号：US5682861A
公开(公告)日：1997-11-04
申请号：US652174
申请日：1996-05-23
CPC分类号： F16J15/006 , F02M57/02 , F02M59/442 , F02M61/16
摘要： A fuel injector includes an injector body with a plunger bore that opens to a nozzle outlet. A plunger having a pressure face and a side surface is positioned to reciprocate in the plunger bore between an advanced position and a retracted position. A portion of the plunger bore and the plunger define a fuel pressurization chamber that opens to the nozzle outlet. A needle valve is positioned in the injector body adjacent the nozzle outlet and is moveable between an open position which opens the nozzle outlet and a closed position in which the nozzle outlet is closed to the fuel pressurization chamber. An O-ring is in contact with the side surface of the plunger and the plunger bore on the injector body and serves to seal against fuel leakage past the plunger. Pressure acting on the O-ring is attenuated by providing either a pressure accumulation volume between the pressure face end of the plunger and the O-ring and/or a pressure release passage that opens the plunger bore to a low pressure return line below the O-ring.
摘要翻译： 燃料喷射器包括具有通向喷嘴出口的柱塞孔的喷射器主体。 具有压力面和侧表面的柱塞定位成在推进位置和缩回位置之间在柱塞孔中往复运动。 柱塞孔和柱塞的一部分限定了向喷嘴出口开口的燃料加压室。 针阀位于喷嘴主体中，邻近喷嘴出口，并可在打开喷嘴出口的打开位置和喷嘴出口关闭到燃料加压室的关闭位置之间移动。 O形环与柱塞的侧表面和喷射器主体上的柱塞孔接触，并用于密封通过柱塞的燃料泄漏。 作用在O形环上的压力通过在柱塞的压力面端部和O形环之间提供压力积聚体积和/或将压力释放通道打开到低于O的低压回流管线的压力释放通道而减弱 -环。
-
公开(公告)号：US5649665A
公开(公告)日：1997-07-22
申请号：US491435
申请日：1995-06-16
CPC分类号： F02M61/18 , F02M61/1806
摘要： A valve-closed-orifice (VCO) spray tip having an internal tip seat and one or more fuel spray orifices. The thickness of the tip in the wall portion defining the internal tip seat and upstream entrance of each orifice is made less than that of previously known VCO tips. The length to diameter ratio of each orifice is also relatively smaller than that of previously known VCO tips. Advantages of the thinner wall portion include improved fuel injection spray characteristics as well as reduced cost of forming orifices through the tip.
摘要翻译： 具有内部尖端座和一个或多个燃料喷雾孔的阀封闭孔（VCO）喷嘴。 限定内部尖端座的壁部中的尖端的厚度和每个孔的上游入口的厚度小于先前已知的VCO尖端的厚度。 每个孔口的长径比也相对较先前已知的VCO尖端小。 较薄壁部分的优点包括改进的燃料喷射喷射特性以及通过尖端成形孔的成本降低。
-
公开(公告)号：US5449121A
公开(公告)日：1995-09-12
申请号：US23662
申请日：1993-02-26
CPC分类号： F02M61/18 , F02M61/1806
摘要： A valve-closed-orifice (VCO) spray tip having an internal tip seat and one or more fuel spray orifices. The thickness of the tip in the wall portion defining the internal tip seat and upstream entrance of each orifice is made less than that of previously known VCO tips. The length to diameter ratio of each orifice is also relatively smaller than that of previously known VCO tips. Advantages of the thinner wall portion include improved fuel injection spray characteristics as well as reduced cost of forming orifices through the tip.
摘要翻译： 具有内部尖端座和一个或多个燃料喷雾孔的阀封闭孔（VCO）喷嘴。 限定内部尖端座的壁部中的尖端的厚度和每个孔的上游入口的厚度小于先前已知的VCO尖端的厚度。 每个孔口的长径比也相对较先前已知的VCO尖端小。 较薄壁部分的优点包括改进的燃料喷射喷射特性以及通过尖端成形孔的成本降低。
-
48.发明授权Fuel injector having trapped fluid volume means for assisting check valve closure 失效燃料喷射器已被捕获用于辅助止回阀关闭的流体容积装置
公开(公告)号：US5429309A
公开(公告)日：1995-07-04
申请号：US239071
申请日：1994-05-06
申请人： Alan R. Stockner
发明人： Alan R. Stockner
CPC分类号： F02M57/025 , F02M59/366
摘要： An improved fuel injector nozzle employs a hydraulic spring which controls displacement of a needle check to provide a desired rate of fuel flow through an injector orifice.
摘要翻译： 改进的燃料喷射器喷嘴采用液压弹簧，其控制针检查的位移以提供通过喷射器孔的期望速率的燃料流。
-
49.发明授权Hydraulically-actuated electronically-controlled unit injector having stroke-controlled piston and methods of operation 失效具有行程控制的活塞和操作方法的液压致动电控单元喷射器
公开(公告)号：US5181494A
公开(公告)日：1993-01-26
申请号：US776502
申请日：1991-10-11
IPC分类号： F02D41/06 , F02B75/18 , F02D41/40 , F02F7/00 , F02M57/02 , F02M59/10 , F02M63/00 , F02M63/02
CPC分类号： F02D41/062 , F02M57/025 , F02M63/00 , F02B2075/1832 , F02B2275/14 , F02D2200/0606 , F02D41/3809 , F02F7/006 , Y02T10/123
摘要： In a hydraulically-actuated electronically-controlled unit injector, the viscosity of the actuating fluid used to actuate the unit injector varies with ambient temperature and affects the magnitude of pressure drops in the actuating fluid circuit. Such variations in viscosity affect the magnitude of the fuel delivery command pulsewidth and/or actuating fluid pressure required for engine startup versus that required for normal engine operation. The present invention provides an improved hydraulically-actuated electronically-controlled unit injector and methods of operation which compensate for variations in the viscosity of the actuating fluid used to hydraulically actuate a piston. The stroke of the piston is controlled electronically and/or mechanically in order to achieve an appropriate amount of fuel injection.
摘要翻译： 在液压致动的电子控制单元喷射器中，用于致动单元喷射器的致动流体的粘度随着环境温度而变化，并且影响致动流体回路中压降的大小。 粘度的这种变化影响发动机起动所需的燃料输送指令脉冲宽度和/或致动流体压力的大小，而与正常的发动机操作相关。 本发明提供一种改进的液压致动电控单元喷射器和操作方法，其补偿用于液压致动活塞的致动流体的粘度变化。 电动和/或机械地控制活塞的冲程以便实现适当量的燃料喷射。
-
公开(公告)号：US09234452B2
公开(公告)日：2016-01-12
申请号：US13474079
申请日：2012-05-17
IPC分类号： F02B27/02 , F02B45/10 , F02M21/02 , F02D19/08 , F02D19/02 , F02D19/06 , F02D19/10 , F02D41/22 , F02M63/02 , F02M43/00 , F02M37/04 , F02D41/00
CPC分类号： F02B27/02 , F02B45/10 , F02D19/027 , F02D19/0623 , F02D19/0684 , F02D19/0689 , F02D19/0694 , F02D19/08 , F02D19/105 , F02D41/0025 , F02D41/0027 , F02D41/22 , F02D2041/227 , F02M21/02 , F02M21/0215 , F02M21/0224 , F02M37/04 , F02M43/00 , F02M63/029 , Y02T10/32 , Y02T10/36 , Y02T10/40
摘要： The disclosure describes an engine system having liquid and gaseous fuel systems, each of which injects fuel directly into an engine cylinder. A controller monitors and controls engine operation in a normal mode, during which the engine produces rated power, and in a limp-home mode, which is used when an abnormal operating condition of the gaseous fuel system is present. During limp-home mode operation, the engine uses more liquid fuel and less or no gaseous fuel relative to the normal mode, and produces power that is less than rated power.
摘要翻译： 本公开描述了一种具有液体和气体燃料系统的发动机系统，每个燃料系统将燃料直接喷射到发动机气缸中。 控制器以正常模式监视和控制发动机运转，在正常模式期间，发动机产生额定功率，并且在处于气体燃料系统的异常操作状态时使用的跛行模式。 在跛行模式操作期间，发动机使用更多的液体燃料，并且相对于正常模式使用更少或不少的气体燃料，并且产生小于额定功率的功率。
-
-
-
-
-
-
-
-
-
搜索结果
74 条记录 (耗时 0.031 秒)
