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公开(公告)号：US20090114292A1
公开(公告)日：2009-05-07
申请号：US11981876
申请日：2007-11-01
IPC分类号： F16K15/00
CPC分类号： F04B53/102 , F02B3/06 , F02M59/466 , F02M63/0031 , F02M63/0071 , F02M63/0078 , F04B1/04 , F04B53/1022 , F05C2201/0406 , F05C2201/0412 , F05C2201/046 , F05C2203/08 , F05C2203/0808 , F05C2203/0813 , F05C2203/0817 , F05C2203/0826 , F05C2203/083 , F05C2203/0847 , F05C2203/0852 , F05C2203/0895 , Y10T137/7838
摘要： Although modern diesel fuel formulations are intended to reduce emissions of diesel engines, at least some of those modern fuels tend to have relatively low lubricity levels. The control valve assemblies described herein help to minimize any increased wear that would otherwise result from the use of such low lubricity fuels by providing a valve element, a valve guide, and an insert. The valve element is received within the valve guide and is moveable between an open position and a closed position. The insert forms a first sealed interface and a second sealed interface with the valve element and the valve guide. When the valve element is in the closed position, both of the first sealed interface and the second sealed interface are engaged. When the valve element is in the open position, only one of the first sealed interface and the second sealed interface is engaged.
摘要翻译： 虽然现代柴油燃料配方旨在减少柴油发动机的排放，但至少有些现代燃料往往具有较低的润滑性水平。 这里描述的控制阀组件有助于最小化否则通过提供阀元件，阀引导件和插入件而由使用这种低润滑性燃料而导致的任何增加的磨损。 阀元件容纳在阀引导件内并且能够在打开位置和关闭位置之间移动。 插入件与阀元件和阀引导件形成第一密封界面和第二密封界面。 当阀元件处于关闭位置时，第一密封界面和第二密封界面都被接合。 当阀元件处于打开位置时，第一密封界面和第二密封界面中只有一个接合。
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公开(公告)号：US07444989B2
公开(公告)日：2008-11-04
申请号：US11604579
申请日：2006-11-27
CPC分类号： F04B1/0413 , F02M59/06 , F02M59/366 , F02M63/0295 , F02M2200/03 , F04B1/02 , F04B1/0538 , F04B9/042 , F04B49/24 , F04B2201/1202 , F04B2201/1207
摘要： A high volume high pressure common rail pump for a fuel system includes pairs of pump head assemblies in phase with each other but oriented in opposition to one another about a rotating cam shaft. Pump pistons in the pump head assemblies simultaneously undergo pumping strokes via a shared two lobe cam of the rotating cam shaft. The pump may include two pairs of pump head assemblies, and each head assembly may include two pump pistons. The cam shaft includes two cams sufficiently out of phase with one another that the cam shaft always has a positive torque even when the cam lobes are symmetrical. In addition, because the pumping is done simultaneously on opposite sides of the cam shaft, the forces on the cam shaft are balanced and its support bearings experience less wear and tear.
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公开(公告)号：US07150268B2
公开(公告)日：2006-12-19
申请号：US11201301
申请日：2005-08-11
申请人： Scott F. Shafer , Lifeng Wang
发明人： Scott F. Shafer , Lifeng Wang
CPC分类号： F02M63/027 , F02B1/12 , F02B2275/14 , F02M45/02 , F02M45/06 , F02M59/20 , F02M59/366 , F02M63/0225 , Y02T10/123
摘要： A fuel pumping system that includes a pump drive is provided. A first pumping element is operatively connected to the pump drive and is operable to generate a first flow of pressurized fuel. A second pumping element is operatively connected to the pump drive and is operable to generate a second flow of pressurized fuel. A first solenoid is operatively connected to the first pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the first flow of pressurized fuel. A second solenoid is operatively connected to the second pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the second flow of pressurized fuel.
摘要翻译： 提供了包括泵驱动器的燃料泵送系统。 第一泵送元件可操作地连接到泵驱动器并且可操作地产生加压燃料的第一流。 第二泵送元件可操作地连接到泵驱动器并且可操作以产生第二加压燃料流。 第一螺线管可操作地连接到第一泵送元件，并且可操作以改变第一加压燃料流的燃料压力和燃料流量中的至少一个。 第二螺线管可操作地连接到第二泵送元件并且可操作以改变第二加压燃料流的燃料压力和燃料流量中的至少一个。
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公开(公告)号：US07066141B2
公开(公告)日：2006-06-27
申请号：US10617289
申请日：2003-07-10
申请人： Scott F. Shafer , Alan R. Stockner
发明人： Scott F. Shafer , Alan R. Stockner
IPC分类号： F01D13/04
CPC分类号： F02D13/04 , F01L9/02 , F01L13/065 , F02M57/025 , F02M61/205 , Y10T137/86622
摘要： A linear control valve is disclosed regulating the flow of fluid to hydraulically activated devices, preferably a fuel injector and an engine compression release brake. The valve includes a valve member that is moveable between a first position in which the fuel injector is, at least partially, activated, a second position in which neither the fuel injector nor the engine compression release brake is activated, and a third position in which the engine compression release brake is activated. An electrical actuator providing two permanent magnets and two oppositely wound solenoid coils moves the valve member between its three positions. The polarity of the permanent magnets are oriented such that when the solenoids are energized, one solenoid coil pulls the valve member while the other solenoid coil pushes the valve member in the same direction.
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15.发明授权Engine with high efficiency hydraulic system having variable timing valve actuation 失效具有高效率液压系统的发动机具有可变的定时阀致动公开(公告)号：US06769405B2
公开(公告)日：2004-08-03
申请号：US10209029
申请日：2002-07-31
IPC分类号： F02M3704
CPC分类号： F02M47/043 , F01L9/021 , F01L2001/34446 , F02M47/027 , F02M55/025 , F02M57/025 , F02M59/02 , F02M59/105 , F02M59/366 , F02M61/205 , F02M2200/21
摘要： A hydraulic system comprises a pump, low pressure drain, high pressure rail, fuel injector, a gas exchange valve actuator, and a timing valve. The high pressure rail is connected to the pump with a supply line. A method of operating an engine comprises the steps of opening a gas exchange valve by connecting it with the outlet of the pump at a first chosen time, supplying pressurized fluid to a high pressure rail by connecting it with the outlet of the pump after the first time, and injecting fuel by supplying fluid from the high pressure rail to a fuel injector at a second chosen time. An engine comprises an engine casing that defines a plurality of cylinders. A fuel injector, gas exchange valve actuator, pump, supply line, and timing valve is provided for each of the cylinders. A low pressure drain and a high pressure rail are also provided.
摘要翻译： 液压系统包括泵，低压排水，高压轨，燃料喷射器，气体交换阀致动器和定时阀。 高压轨通过电源线与泵连接。 一种操作发动机的方法包括以下步骤：在第一选择的时间将气体交换阀与泵的出口连接，从而将加压流体与第一个 通过在第二选定时间将流体从高压轨道供应到燃料喷射器来喷射燃料。 发动机包括限定多个气缸的发动机壳体。 为每个气缸提供燃料喷射器，气体交换阀致动器，泵，供应管线和正时阀。 还提供了低压排水管和高压轨道。
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公开(公告)号：US5832954A
公开(公告)日：1998-11-10
申请号：US263293
申请日：1994-06-21
申请人： Scott F. Shafer
发明人： Scott F. Shafer
CPC分类号： F02M57/025 , F02M59/105 , F02M59/46 , F02M2200/31 , Y10T137/7847 , Y10T137/7851 , Y10T137/7935
摘要： A check valve assembly is disposed in a flow path of a high pressure hydraulic actuating system between a source of pressurized fluid and a pressure responsive mechanism to limit flow to a single direction therebetween. A valve housing defines a fluid passage therethrough with a first axis therealong. The fluid passage has an annular first seat surface normal to the axis. A fitting is fixed to the valve housing and has a post directed toward fluid flow from the source of pressurized fluid. A check valve assembly slidably translates on the post between a closed position abutting the first seat surface which restricts flow toward the pressure source, and an open position spaced from the first seat surface which permits flow toward the pressure responsive mechanism. A spring disposed between the fitting and the check biases the check to the closed position.
摘要翻译： 止回阀组件设置在加压流体源和压力响应机构之间的高压液压致动系统的流动路径中，以限制流向其间的单个方向。 阀壳体限定了其中通过其的第一轴线的流体通道。 流体通道具有垂直于轴线的环形第一座面。 一个配件固定在阀壳体上，并具有一个从加压流体源流向流体的柱。 止回阀组件在支柱之间可滑动地平移，该关闭位置邻接第一座面，限制朝向压力源的流动，以及与第一座表面间隔开的允许向压力响应机构流动的打开位置。 设置在配件和支票之间的弹簧将支票偏向关闭位置。
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公开(公告)号：US5515829A
公开(公告)日：1996-05-14
申请号：US247168
申请日：1994-05-20
IPC分类号： F02B75/18 , F02B75/22 , F02M57/02 , F02M59/10 , F02M63/02 , F04B1/32 , F04B49/08 , F02M47/02 , F04B1/34
CPC分类号： F04B1/324 , F02B75/22 , F02M57/025 , F02M59/105 , F04B49/08 , F02B2075/1832
摘要： A pressure control system for controlling output pressure of a variable-displacement hydraulic pump used with a hydraulically-actuated electronically-controlled injector fuel system and method of operation is disclosed. The control system comprises a variable-displacement hydraulic pump with a control element adjustable to a range of positions which controls an output of the pump. The control system additionally includes positioning means for positioning the control element responsive to pressure differences between the fluid reference chamber and the output port. Electronic valve means regulates a pressure of hydraulic actuating fluid in the fluid reference chamber. The electronic valve means is electronically connected with the electronic control means to receive the output signal. A change in the output signal to the electrical valve means produces a change in the pressure of the hydraulic actuating fluid in the fluid reference chamber, thereby causing the positioning means to operably position the control element to change the output of the pump.
摘要翻译： 公开了一种用于控制与液压致动电控喷射器燃料系统一起使用的可变排量液压泵的输出压力的压力控制系统和操作方法。 控制系统包括一个可变排量的液压泵，其具有可控制到泵的输出的一定范围的控制元件。 控制系统还包括用于响应于流体参考室和输出端口之间的压力差定位控制元件的定位装置。 电子阀装置调节流体参考室中的液压致动流体的压力。 电子阀装置与电子控制装置电连接以接收输出信号。 对电动阀装置的输出信号的变化产生液体致动流体在流体参考室中的压力变化，从而使定位装置可操作地定位控制元件以改变泵的输出。
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公开(公告)号：US07021565B2
公开(公告)日：2006-04-04
申请号：US10775591
申请日：2004-02-10
申请人： Dana R. Coldren , Richard R. Ohs , Scott F. Shafer , Yongxin Wang
发明人： Dana R. Coldren , Richard R. Ohs , Scott F. Shafer , Yongxin Wang
CPC分类号： F02M63/0068 , F02M45/12 , F02M63/0007 , F02M63/0015 , F02M63/0026 , F02M63/004 , F02M63/0045
摘要： Common rail fuel injectors typically have difficulty in changing an injection rate during an injection event. Fuel injectors for this common rail fuel injection system include a multi-position admission valve. The admission valve is stoppable at a middle position to inject fuel at a low rate. The lower rate is accomplished by leaking some fuel to drain to reduce injection pressure. The admission valve is also stoppable at a fully open position to inject fuel at a high rate. Fuel injection events are ended, and the fuel injectors maintained between injection events, with the admission valve member in contact with a supply seat to close the high pressure supply passage. This strategy can be used in conjunction with a spring-biased needle valve member to expand fuel injector capabilities.
摘要翻译： 共轨燃油喷射器在注射事件期间通常难以改变喷射速率。 用于该共轨燃料喷射系统的燃料喷射器包括多位置进气阀。 入口阀在中间位置可以以低速率喷射燃料。 较低的速率通过将一些燃料泄漏到排水口来实现，以降低喷射压力。 入口阀也可以在完全打开的位置停止，以高速喷射燃料。 燃料喷射事件结束，并且燃料喷射器保持在喷射事件之间，进气阀构件与供应座接触以关闭高压供应通道。 该策略可以与弹簧偏压的针阀构件结合使用，以扩大燃油喷射器的能力。
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公开(公告)号：US06978760B2
公开(公告)日：2005-12-27
申请号：US10601451
申请日：2003-06-23
申请人： Chris Lee Stewart , Ye Tian , Lifeng Wang , Scott F. Shafer
发明人： Chris Lee Stewart , Ye Tian , Lifeng Wang , Scott F. Shafer
CPC分类号： F02M63/0064 , F02B1/12 , F02M45/086 , F02M47/027 , F02M61/1813 , F02M61/182 , F02M63/0017 , F02M63/0045 , F02M63/0225 , F02M2200/46
摘要： A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set that are controlled respectively by first and second three way needle control valves. Each fuel injector includes first and second concentric needle valve members. One of the needle valve members moves to an open position for a homogenous charge injection event, while the other needle valve member moves to an open position for a conventional injection event. The fuel injector has the ability to operate in a homogenous charge mode with a homogenous charge spray pattern, a conventional mode with a conventional spray pattern or a mixed mode.
摘要翻译： 燃料喷射器包括分别由第一和第二三通针控制阀控制的均匀充电喷嘴出口组和常规喷嘴出口组。 每个燃料喷射器包括第一和第二同心针阀构件。 一个针阀构件移动到用于均匀电荷注入事件的打开位置，而另一个针阀构件移动到用于常规注射事件的打开位置。 燃料喷射器具有以均匀充电模式操作的能力，具有均匀的电荷喷射模式，具有常规喷射模式或混合模式的常规模式。
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公开(公告)号：US06973921B2
公开(公告)日：2005-12-13
申请号：US10733444
申请日：2003-12-12
申请人： Scott F. Shafer , Lifeng Wang
发明人： Scott F. Shafer , Lifeng Wang
CPC分类号： F02M63/027 , F02B1/12 , F02B2275/14 , F02M45/02 , F02M45/06 , F02M59/20 , F02M59/366 , F02M63/0225 , Y02T10/123
摘要： A fuel pumping system that includes a pump drive is provided. A first pumping element is operatively connected to the pump drive and is operable to generate a first flow of pressurized fuel. A second pumping element is operatively connected to the pump drive and is operable to generate a second flow of pressurized fuel. A first solenoid is operatively connected to the first pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the first flow of pressurized fuel. A second solenoid is operatively connected to the second pumping element and is operable to vary at least one of a fuel pressure and a fuel flow rate of the second flow of pressurized fuel.
摘要翻译： 提供了包括泵驱动器的燃料泵送系统。 第一泵送元件可操作地连接到泵驱动器并且可操作地产生加压燃料的第一流。 第二泵送元件可操作地连接到泵驱动器并且可操作以产生第二加压燃料流。 第一螺线管可操作地连接到第一泵送元件，并且可操作以改变第一加压燃料流的燃料压力和燃料流量中的至少一个。 第二螺线管可操作地连接到第二泵送元件并且可操作以改变第二加压燃料流的燃料压力和燃料流量中的至少一个。
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