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公开(公告)号：US06749129B2
公开(公告)日：2004-06-15
申请号：US10209530
申请日：2002-07-31
IPC分类号： F02M4702
CPC分类号： F02M61/12 , F02M55/004 , F02M55/007 , F02M57/025 , F02M59/466
摘要： A fuel injector with a direct control needle valve has a closing hydraulic surface exposed to a control fluid, and an opening hydraulic surface exposed to fuel. The control fluid is different from the fuel. A vented annulus is positioned around the needle valve member between the control fluid chamber and the fuel chamber. An o-ring is positioned in a lower pressure region between the annulus and the control fluid chamber.
摘要翻译： 具有直接控制针阀的燃料喷射器具有暴露于控制流体的关闭液压表面和暴露于燃料的开启液压表面。 控制流体与燃料不同。 通气环位于控制流体室和燃料室之间的针阀构件周围。 O形环位于环形空间和控制流体室之间的较低压力区域。
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公开(公告)号：US5606940A
公开(公告)日：1997-03-04
申请号：US576277
申请日：1995-12-21
摘要： The present invention is an apparatus 10 for hydraulically slowing a member (12), preferably an engine poppet valve, to an acceptable impact seating velocity as the valve (12) is moved from open to closed. The poppet valve (12) has a stem (16) having a first portion (18) connected through a stepped portion (20) to a second portion (22) having a greater cross-sectional area than the first portion (18). The valve (12) rides within a guide body (28) having an opening (34) in an end wall (32) thereof through which the first portion (18) of the stem (16) extends. A hydraulic fluid space (50) is formed by the guide body (28) and the valve (12). As the valve (12) closes, fluid is forced out of the space (50) through a first fluid exit opening (66). As the valve (12) nears its seat (44), the fluid still in the space (50) is forced out through a second fluid exit opening (68) through which the rate of flow is less than the rate of flow through the first fluid exit opening (66). As the valve (12) continues closing, fluid still in the space (50) is compressed, increasing its hydraulic pressure and creating a resistive force to further movement of the poppet valve (12), thereby slowing it to an acceptable impact velocity.
摘要翻译： 本发明是一种用于当阀（12）从开放移动到关闭状态时将构件（12）优选地将发动机提升阀液压地减速至可接受的冲击座椅速度的装置10。 提升阀（12）具有杆（16），杆（16）具有通过阶梯部分（20）连接到第二部分（22）的第一部分（18），该第二部分具有比第一部分（18）更大的横截面面积。 阀（12）在引导体（28）内行进，该引导体（28）在其端壁（32）中具有开口（34），杆（16）的第一部分（18）穿过该开口延伸。 液压流体空间（50）由引导体（28）和阀（12）形成。 当阀（12）关闭时，流体通过第一流体出口（66）被迫离开空间（50）。 当阀（12）靠近其座（44）时，静止在空间（50）中的流体被迫通过第二流体出口（68）排出，流体的流速小于通过第一流体 流体出口（66）。 当阀（12）继续关闭时，静止在空间（50）中的流体被压缩，增加其液压并产生阻力以使提升阀（12）的进一步运动，从而将其减慢到可接受的冲击速度。
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23.发明授权
公开(公告)号：US5084607A
公开(公告)日：1992-01-28
申请号：US386064
申请日：1989-07-28
申请人： Scott F. Shafer , Garey A. Towe
发明人： Scott F. Shafer , Garey A. Towe
IPC分类号： F23Q7/00
CPC分类号： F23Q7/001
摘要： An improved mechanical joint structure is provided and adapted for positively retaining a heating element within a bore of a body of a glow plug. The glow plug includes a body, a heating element and a ferrule. The ferrule is sealingly positioned radially between an internal surface of the body bore and a peripheral surface of the heating element. The glow plug further includes a compressing structure for positively compressing an internal surface of the ferrule against the peripheral surface of the heating element in response to the heating element being forced into the body bore by, for example, the gas pressure developed in an operating engine combustion chamber.Unlike conventional brazed or interference joints used in typical glow plugs, the present invention provides a normal force (F.sub.n), for sealing the heating element, and an axially-directed frictional force (F.sub.f), for retaining the heating element, which both increase as the heating element is forced deeper into the body bore.
摘要翻译： 提供了一种改进的机械接头结构并且适于将加热元件积极地保持在电热塞的主体的孔内。 电热塞包括主体，加热元件和套圈。 套圈密封地定位在主体孔的内表面和加热元件的周边表面之间。 电热塞还包括压缩结构，用于响应于加热元件通过例如在操作发动机中产生的气体压力而被迫进入身体孔而正向压缩套圈的内表面抵靠加热元件的外周表面 燃烧室。 与典型的电热塞中使用的常规钎焊或干涉接头不同，本发明提供了用于密封加热元件的法向力（Fn）和用于保持加热元件的轴向摩擦力（Ff），两者都增加为 加热元件被迫深入到身体孔中。
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公开(公告)号：US5084606A
公开(公告)日：1992-01-28
申请号：US524609
申请日：1990-05-17
IPC分类号： F23Q7/00
CPC分类号： F23Q7/001
摘要： The service life of conventional glow plugs is extremely short when they are continuously energized at an elevated temperature during engine operation in order to assist ignition of non-autoignitable fuels. Such glow plugs typically fail due to thermal stresses and/or oxidation and corrosion.Herein is disclosed an improved heating element assembly adapted for incorporation in a glow plug. The heating element assembly includes a monolithic sheath having a relatively-thin and generally annular wall defining a blind bore. The heating element assembly further includes a heating device positioned in the blind bore and adapted to emit heat, and a heat transfer device adapted to transfer heat from the heating means to the sheath. The heating device includes a heating filament and a ceramic insulator. THe heating filament is protected against oxidation by being encapsulated in the insulator. The insulator is protected against corrosion by being encapsulated in the sheath. The sheath is formed of a preselected material which is chosen and configured so as to minimize failure of the heating element assembly caused by thermal stresses, oxidation and/or corrosion.
摘要翻译： 传统电热塞的使用寿命在发动机运行期间在升高的温度下持续通电以便辅助非自燃燃料的点燃时，非常短。 这种电热塞通常由于热应力和/或氧化和腐蚀而失效。 本文公开了一种适于结合在电热塞中的改进的加热元件组件。 加热元件组件包括具有限定盲孔的相对薄且大致环形的壁的整体式护套。 加热元件组件还包括定位在盲孔中并适于发出热量的加热装置，以及适于将热量从加热装置传递到护套的传热装置。 加热装置包括加热丝和陶瓷绝缘体。 通过封装在绝缘体中来保护加热丝免受氧化。 通过将绝缘体封装在护套中来保护绝缘体免受腐蚀。 护套由预选材料形成，其被选择和构造成使得由热应力，氧化和/或腐蚀引起的加热元件组件的故障最小化。
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25.发明授权
公开(公告)号：US4721081A
公开(公告)日：1988-01-26
申请号：US870266
申请日：1986-06-03
CPC分类号： F02B23/101 , F02B23/0657 , F02B23/0696 , F02B2023/103 , F02B2023/108 , F02B2075/125 , F02B2275/14 , F05C2201/046 , Y02T10/123 , Y02T10/125
摘要： Conventional direct-injection internal combustion engines having a fuel injector with multiple fuel spray orifices will not completely ignite and burn relatively lower-cetane-number alternative fuels such as 100 percent methanol or ethanol. That is because the fuel spray injection pattern, per se, usually cannot carry or propagate a flame to all the injected fuel which is typically made up of individual fuel streams which are separated by sectors of fuel-deficient intake air. The present fuel combustion system (10) includes a multiple-orifice fuel injector (22), a baffle (138) having a concave surface (146), and a fuel ignition-initiating device (22) such as glow plug positioned generally in spaced relation between the fuel injector (22) and the concave surface (146). The baffle (138) intercepts and temporarily maintains a stoichiometric preselected portion (34,38) of at least one, and preferably two, fuel streams (102,106) in ignitable proximity to the fuel ignition-initiating device (26) to positively start a localized flame (42) of burning fuel. The baffle (138) controlledly reflects and rapidly directs the resultant expanding flame (42) of burning fuel to all of the remaining fuel streams (110) so that they are interconnectedly bridged with the flame (42) and thereby positively ignited.
摘要翻译： 具有具有多个燃料喷雾孔的燃料喷射器的常规直喷式内燃机将不能完全点燃和燃烧相对较低十六烷值的替代燃料，例如100％甲醇或乙醇。 这是因为燃料喷射喷射模式本身通常不能将火焰携带或传播到通常由燃料不足的进气的扇区分开的单个燃料流组成的所有喷射燃料。 本发明的燃料燃烧系统（10）包括多孔燃料喷射器（22），具有凹面（146）的挡板（138）和燃料点火启动装置（22） 燃料喷射器（22）和凹面（146）之间的关系。 挡板138拦截并临时保持燃料点火启动装置（26）可靠地靠近燃料点火启动装置（26）的至少一个，优选两个燃料流（102,106）的化学计量预选部分（34,38），以积极地启动局部 火焰（42）燃烧燃料。 挡板138控制地将所产生的燃烧燃料的膨胀火焰（42）快速地引导到所有剩余的燃料流（110），使得它们与火焰（42）相互桥接，从而被积极地点燃。
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26.发明授权Range of engines using common rail fuel system with pump and rail assemblies having common components 失效使用共轨燃油系统的发动机范围，泵和轨道组件具有共同的部件公开(公告)号：US08561593B2
公开(公告)日：2013-10-22
申请号：US12718171
申请日：2010-03-05
申请人： Scott F. Shafer , Zhenyu Li
发明人： Scott F. Shafer , Zhenyu Li
CPC分类号： F02M63/0285
摘要： A pump and rail assembly includes a plurality of quills that are compressed between quill seats on a pump and an output rail. A rail pressure control valve and a rail pressure sensor are attached to respective ends of the output rail. An inlet throttle valve is attached to a housing of the pump and rail assembly. Depending upon the application, the output rail may supply fuel to a first injection bank that includes a plurality of fuel injectors in a first common rail, and a second fuel injection bank that includes a second common rail and a plurality of fuel injectors. Different engines having different numbers of cylinders may use similar pump and rail assemblies that each include a plurality of quills, a plurality of pumping elements positioned in a pump housing and an output rail. The quills for each of the different engine applications are interchangeable but differ in number. In addition, the pumping elements of each of the different engine applications are also interchangeable but differ in number.
摘要翻译： 泵和轨道组件包括在泵上的轴承座和输出轨道之间被压缩的多个套筒。 轨道压力控制阀和轨道压力传感器连接到输出轨道的相应末端。 入口节流阀连接到泵和导轨组件的壳体。 根据应用，输出轨道可以向包括第一共轨中的多个燃料喷射器的第一注入组提供燃料，以及包括第二共轨和多个燃料喷射器的第二燃料喷射组。 具有不同数量的气缸的不同发动机可以使用类似的泵和轨道组件，其各自包括多个套筒，定位在泵壳体中的多个泵送元件和输出轨道。 每个不同发动机应用的套筒可互换，但数量不同。 此外，不同发动机应用中的每一个的泵送元件也是可互换的，但数量不同。
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公开(公告)号：US08291889B2
公开(公告)日：2012-10-23
申请号：US12437028
申请日：2009-05-07
申请人： Scott F. Shafer , Jeffrey DePayva , Daniel R. Puckett , Amy S. Johanson , Kenneth C. Adams , Benjamin R. Tower , Jason Z. Li , Jayaraman Venkataraghavan , Michael D. Gerstner , Michael C. Long
发明人： Scott F. Shafer , Jeffrey DePayva , Daniel R. Puckett , Amy S. Johanson , Kenneth C. Adams , Benjamin R. Tower , Jason Z. Li , Jayaraman Venkataraghavan , Michael D. Gerstner , Michael C. Long
IPC分类号： F02M59/36
CPC分类号： F02M63/025 , F02D41/042 , F02D41/062 , F02D41/3863 , F02M63/0052 , F02M63/0054
摘要： A pressure relief valve includes a valve body having a valve seat fluidly positioned between an inlet and an outlet. A valve member is movable among a first position, a second position, and a third position. The valve member is in contact with the valve seat and fluidly blocks the inlet from the outlet at the first position. At the second position of the valve member, the inlet is fluidly connected to the outlet via a small flow area. The inlet is fluidly connected to the outlet via a large flow area when the valve member is at the third position. An electrical actuator is attached to the valve body and is operably coupled to move the valve member when energized. The valve member includes an opening hydraulic surface exposed to fluid pressure in the inlet when at the first position. A spring is operably positioned to bias the valve member toward the second position when the valve member is at the third position.
摘要翻译： 减压阀包括具有流体地定位在入口和出口之间的阀座的阀体。 阀构件可在第一位置，第二位置和第三位置之间移动。 阀构件与阀座接触并且在第一位置处从入口流体地阻挡入口。 在阀构件的第二位置处，入口通过小的流动面积流体地连接到出口。 当阀构件处于第三位置时，入口通过大的流动面积流体地连接到出口。 电致动器附接到阀体并且可操作地联接以在通电时移动阀构件。 阀构件包括当处于第一位置时暴露于入口中的流体压力的开口液压表面。 弹簧被可操作地定位成当阀构件处于第三位置时将阀构件朝向第二位置偏压。
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公开(公告)号：US08287256B2
公开(公告)日：2012-10-16
申请号：US11981876
申请日：2007-11-01
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：US20090159053A1
公开(公告)日：2009-06-25
申请号：US12338335
申请日：2008-12-18
申请人： Alan R. Stockner , Scott F. Shafer
发明人： Alan R. Stockner , Scott F. Shafer
IPC分类号： F02M37/04
CPC分类号： F02M59/442 , F02M59/44 , F02M63/027 , F04B1/0404 , F04B1/0421 , F04B53/16
摘要： A pumping element for pressurizing a fluid within a fluid pump includes a plunger reciprocally disposed within a bore defined in a barrel. The plunger and barrel at least partially define a pressurization chamber into which fluid is pressurized. A flow path is defined between the plunger and the bore, the flow path permitting fluid to pass from the pressurization chamber during pressurization of fluid disposed therein. A collection chamber is formed between the plunger and the bore, the collection chamber being disposed adjacent to the bore and being part of a cooling circuit for the pumping element. A plurality of weep openings is defined in the barrel and is fluidly connected to the collection chamber. A reduced diameter portion of the barrel forms an annular reservoir that receives fluid from the weep openings.
摘要翻译： 用于对流体泵内的流体加压的泵送元件包括往复地设置在限定在桶中的孔内的柱塞。 柱塞和桶至少部分地限定了加压室，流体被加压到该加压室中。 在柱塞和孔之间限定流动路径，允许流体在加压设置在其中的流体的加压期间允许流体从加压室通过。 收集室形成在柱塞和孔之间，收集室邻近孔并且是泵送元件的冷却回路的一部分。 在桶中限定了多个流出开口，并且流体地连接到收集室。 桶的直径减小部分形成一个环形储存器，其接收来自漏水开口的流体。
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公开(公告)号：US07470117B2
公开(公告)日：2008-12-30
申请号：US10998624
申请日：2004-11-30
CPC分类号： F02M59/365 , F02M59/366 , F04B49/24
摘要： A pump has a housing defining a first pumping chamber and a second pumping chamber. The pump also has a first plunger and a second plunger. The pump additionally has at least one driver operatively engaged with at least one of the first and second plungers to move the at least one of the first and second plungers between first and second end positions. The pump further has a common spill passageway fluidly connectable to the first and second pumping chambers and a selector valve disposed between the common spill passageway and the first and second pumping chambers. The selector valve has a body and a ball valve member operably disposed within the body. The ball valve member is movable between a first and a second ball valve member position to selectively fluidly connect the first and second pumping chambers to the common spill passageway.
摘要翻译： 泵具有限定第一泵送室和第二泵送室的壳体。 泵还具有第一柱塞和第二柱塞。 泵还具有至少一个驱动器，其与第一和第二柱塞中的至少一个可操作地接合，以使第一和第二柱塞中的至少一个在第一和第二端部位置之间移动。 泵还具有可流体连接到第一和第二泵送室的公共溢流通道和设置在公共溢流通道与第一和第二泵送室之间的选择阀。 选择阀具有主体和可操作地设置在主体内的球阀构件。 球阀构件可在第一和第二球阀构件位置之间移动，以选择性地将第一和第二泵送室连接到公共溢流通道。
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