专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5606940A Engine valve seating velocity hydraulic snubber 失效
标题翻译：发动机阀座速度液压缓冲器
公开(公告)号：US5606940A
公开(公告)日：1997-03-04
申请号：US576277
申请日：1995-12-21
申请人： Scott F. Shafer , Thomas S. Carroll , Steven F. Meister , David R. Orr , J. Roger Weber
发明人： Scott F. Shafer , Thomas S. Carroll , Steven F. Meister , David R. Orr , J. Roger Weber
IPC分类号： F01L1/16 , F01L9/02
CPC分类号： F01L9/02 , F01L1/16
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。

2. 发明授权

US5421359A Engine valve seating velocity hydraulic snubber 失效
标题翻译：发动机阀座速度液压缓冲器
公开(公告)号：US5421359A
公开(公告)日：1995-06-06
申请号：US107774
申请日：1992-01-13
申请人： Steven F. Meister , Scott F. Shafer
发明人： Steven F. Meister , Scott F. Shafer
IPC分类号： F01L1/16 , F01L9/02 , F01L1/02 , F16K31/122
CPC分类号： F01L9/021 , F01L1/16 , F01L9/02 , Y10T137/0379
摘要： Adjacent an axially displaceable engine poppet valve (12) is a fluid pathway (36). Within the fluid pathway (36) is a snubbing valve (14) including a snubber (48) movable between first and second locations within the pathway (36) and a snubbing passage (54). When the poppet valve (12) is open, the snubber (48) is at its first location and there is fluid in the fluid pathway (36) between the snubber (48) and poppet valve (12). During a first portion of displacement of the poppet valve (12) as it closes, the snubber (48) is displaced to its second location. During the second portion of displacement of the poppet valve (12) as it closes, fluid in the fluid pathway (36) is snubbed through the snubbing passage (54), thereby increasing the pressure in the fluid in the pathway (36), thereby providing a resistive force against movement of the poppet valve (12), thereby slowing the poppet valve (12) to an acceptable impact seating velocity.
摘要翻译： PCT No.PCT / US92 / 00202 Sec。 371日期1992年1月13日 102（e）日期1992年1月13日PCT提交1992年1月13日PCT公布。公开号WO93 / 14339 日期为1993年7月22日。在轴向移动的发动机提升阀（12）的附近是流体通道（36）。流体通道（36）内的缓冲阀（14）包括可在通道（36）内的第一和第二位置之间移动的缓冲器（48）和缓冲通道（54）。当提升阀（12）打开时，缓冲器（48）处于其第一位置，并且在缓冲器（48）和提升阀（12）之间的流体通道（36）中存在流体。在提升阀（12）关闭时的第一部分移位期间，缓冲器（48）移动到其第二位置。在提升阀（12）关闭的第二部分位移过程中，流体通道36中的流体通过缓冲通道54被压缩，从而增加通路36中的流体的压力，由此提供抵抗提升阀（12）运动的阻力，从而将提升阀（12）减慢到可接受的冲击座椅速度。

3. 发明授权

US08261718B2 High pressure pump and method of reducing fluid mixing within same 有权
标题翻译：高压泵及减少流体混合的方法
公开(公告)号：US08261718B2
公开(公告)日：2012-09-11
申请号：US11981875
申请日：2007-11-01
申请人： Scott F. Shafer , Alan R. Stockner
发明人： Scott F. Shafer , Alan R. Stockner
IPC分类号： F02M57/02
CPC分类号： F02M59/442 , F02M63/0001 , Y10T137/85978
摘要： Mixing a pumped fluid with a lubrication fluid within a pump can undermine the lubricity of the lubrication fluid. In order to reduce mixing of fluids within a pump of the present disclosure, a pump is provided that comprises a housing, a piston, a first annulus, and a second annulus. The housing includes an inlet for the pumped fluid, an inlet for the lubrication fluid provided at a first pressure, and a piston bore fluidly coupled to the inlet for the pumped fluid. The piston is moveable within the piston bore. The first annulus is fluidly coupled to the inlet for the lubrication fluid. The second annulus is configured to be fluidly coupled to a drain circuit provided at a second pressure less than the first pressure. The first annulus and the second annulus are located along the length of the piston bore.
摘要翻译：将泵送的液体与泵内的润滑液混合可能会损害润滑液的润滑性。为了减少本公开的泵内的流体的混合，提供了包括壳体，活塞，第一环和第二环的泵。壳体包括用于泵送流体的入口，用于在第一压力下提供的润滑流体的入口以及与泵送流体的入口流体耦合的活塞孔。活塞可在活塞孔内移动。第一环与流体连接到用于润滑流体的入口。第二环状结构被配置为流体耦合到在小于第一压力的第二压力下提供的排水回路。第一环和第二环沿着活塞孔的长度定位。

4. 发明申请

US20100282212A1 PRESSURE CONTROL IN LOW STATIC LEAK FUEL SYSTEM 有权
标题翻译：低静压泄漏燃油系统的压力控制
公开(公告)号：US20100282212A1
公开(公告)日：2010-11-11
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： F02M69/50 , F16K31/06
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。

5. 发明申请

US20090114292A1 Valve assembly 有权
标题翻译：阀组件
公开(公告)号：US20090114292A1
公开(公告)日：2009-05-07
申请号：US11981876
申请日：2007-11-01
申请人： Scott F. Shafer , Christopher R. Jones
发明人： Scott F. Shafer , Christopher R. Jones
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。

6. 发明授权

US07444989B2 Opposed pumping load high pressure common rail fuel pump 有权
公开(公告)号：US07444989B2
公开(公告)日：2008-11-04
申请号：US11604579
申请日：2006-11-27
申请人： Scott F. Shafer , Timur Trubnikov , William John Love V , Heather Rebholz , Jianhua Zhang
发明人： Scott F. Shafer , Timur Trubnikov , William John Love V , Heather Rebholz , Jianhua Zhang
IPC分类号： F02M57/02 , F02M37/04 , F04B1/04
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.

7. 发明授权

US07150268B2 Fuel pumping system and method 有权
标题翻译：燃油泵系统及方法
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
IPC分类号： F02M57/02 , F02M37/04
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。

8. 发明授权

US07066141B2 Linear control valve for controlling a fuel injector and engine compression release brake actuator and engine using same 失效
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.

9. 发明授权

US06769405B2 Engine with high efficiency hydraulic system having variable timing valve actuation 失效
标题翻译：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
申请人： Scott A. Leman , Ronald D. Shinogle , Scott F. Shafer
发明人： Scott A. Leman , Ronald D. Shinogle , Scott F. Shafer
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。

10. 发明授权

US5832954A Check valve assembly for inhibiting Helmholtz resonance 失效
标题翻译：止回阀组件用于抑制亥姆霍兹共振
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
IPC分类号： F02M57/02 , F02M59/10 , F02M59/46 , F02M63/02 , F16K15/08
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式