公开(公告)号：WO2011153119A3

公开(公告)日：2012-01-26

申请号：PCT/US2011038488

申请日：2011-05-31

Applicant: CATERPILLAR INC ,  SHAFER SCOTT F ,  LI ZHENYU ,  IBRAHIM DANIEL R ,  TOWER BENJAMIN R ,  ADAMS KENNETH C ,  GERSTNER MICHAEL D

Inventor： SHAFER SCOTT F ,  LI ZHENYU ,  IBRAHIM DANIEL R ,  TOWER BENJAMIN R ,  ADAMS KENNETH C ,  GERSTNER MICHAEL D

IPC: F02M55/02 ,  F02M59/44 ,  F02M61/16

CPC classification number: F02M55/02 ,  F02M63/005

Abstract: A common rail fuel system (10, 110) includes a reverse flow check valve (60, 160) fluidly positioned between each of a plurality of common rail fuel injectors (40) and an outlet (22, 154) of a high pressure pump (20). The reverse flow check valves (60, 160) divide the overall system fluid volume (80) into an upstream common volume (82) and a plurality of separate downstream volumes (83). The upstream common volume (82) is greater than the sum of the separate downstream volumes (83). The reverse flow check valve (60, 160) is movable between a first configuration with a large flow area (68, 168) and a second configuration with a small flow area (69, 169). The reverse flow check valve (60, 160) associated with each of the individual fuel injectors may be housed in a quill (50) that fluidly connects the fuel injectors to the high pressure common rail (30, 130).

Abstract translation: 共轨燃料系统（10,110）包括流体地定位在多个共轨燃料喷射器（40）中的每一个和高压泵的出口（22,154）之间的逆流止回阀（60,160） 20）。 逆流止回阀（60,160）将整个系统流体体积（80）划分成上游公共容积（82）和多个单独的下游容积（83）。 上游公共容积（82）大于分开的下游容积（83）的总和。 逆流止回阀（60,160）可在具有大流量区域（68,168）的第一配置和具有小流动面积（69,169）的第二配置之间移动。 与每个单独的燃料喷射器相关联的逆流止回阀（60,160）可以容纳在将燃料喷射器流体连接到高压共轨（30,130）的套筒（50）中。

公开(公告)号：WO2009058332A3

公开(公告)日：2009-06-18

申请号：PCT/US2008012324

申请日：2008-10-31

Applicant: CATERPILLAR INC ,  SHAFER SCOTT F ,  JONES CHRISTOPHER R

Inventor： SHAFER SCOTT F ,  JONES CHRISTOPHER R

IPC: F04B53/10 ,  F02M59/02 ,  F02M59/10 ,  F04B1/04 ,  F16K25/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2009058337A1

公开(公告)日：2009-05-07

申请号：PCT/US2008/012329

申请日：2008-10-31

Applicant: CATERPILLAR INC. ,  SHAFER, Scott, F. ,  STOCKNER, Alan, R.

Inventor： SHAFER, Scott, F. ,  STOCKNER, Alan, R.

IPC: F02M59/44 ,  F02M63/00

CPC classification number: F02M59/442 ,  F02M63/0001 ,  Y10T137/85978

Abstract: 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.

Abstract translation: 将泵送的液体与泵内的润滑液混合可能会破坏润滑液的润滑性。 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。

公开(公告)号：WO2009038637A1

公开(公告)日：2009-03-26

申请号：PCT/US2008/010172

申请日：2008-08-27

Applicant: CATERPILLAR INC. ,  SHAFER, Scott, F. ,  MOORE, Bryan

Inventor： SHAFER, Scott, F. ,  MOORE, Bryan

IPC: F02M61/18

CPC classification number: F02M61/18 ,  F02M61/1886 ,  F02M61/1893 ,  F02M2200/9038 ,  Y10T29/49405 ,  Y10T137/7036

Abstract: A fuel system component is provided. The fuel system component may comprise a valve body having a substantially conical surface region including a first coating. The component may further include a valve seat having a first surface region with a substantially conical surface including a second coating. The coating of the valve seat is configured to engage at least a portion of the coating of the substantially conical surface region of the valve body.

Abstract translation: 提供燃料系统部件。 燃料系统部件可以包括具有包括第一涂层的基本圆锥形表面区域的阀体。 该部件还可以包括具有第一表面区域的阀座，该第一表面区域具有包括第二涂层的基本圆锥形表面。 阀座的涂层构造成与阀体的基本上圆锥形表面区域的涂层的至少一部分接合。

公开(公告)号：WO2008085275A1

公开(公告)日：2008-07-17

申请号：PCT/US2007/025527

申请日：2007-12-13

Applicant: CATERPILLAR INC. ,  SHAFER, Scott, F. ,  CLAUS, Jeremy, T. ,  IBRAHIM, Daniel, R.

Inventor： SHAFER, Scott, F. ,  CLAUS, Jeremy, T. ,  IBRAHIM, Daniel, R.

IPC: F02M47/02 ,  F02M63/00

CPC classification number: F02M63/0015 ,  F02M47/027

Abstract: A solenoid operated valve assembly (38) is provided. The valve assembly may include a solenoid (40) having a solenoid coil (48) and an armature (51) movable under influence of the solenoid coil. The valve assembly may also include a valve member (66) operably connected to the armature and configured to selectively contact a valve seat (62, 64). The valve assembly may further include an outer body (43) containing the solenoid, the armature, the valve member, and the valve seat. In addition, the valve assembly may include a grounding device (47) including an electrically conductive element (47) disposed between the valve member and the outer body.

Abstract translation: 提供电磁阀组件（38）。 阀组件可以包括具有螺线管线圈（48）的螺线管（40）和在电磁线圈的影响下可移动的电枢（51）。 阀组件还可以包括可操作地连接到电枢并构造成选择性地接触阀座（62,64）的阀构件（66）。 阀组件还可以包括容纳螺线管，电枢，阀构件和阀座的外体（43）。 此外，阀组件可以包括接地装置（47），其包括设置在阀构件和外体之间的导电元件（47）。

公开(公告)号：WO2009058332A2

公开(公告)日：2009-05-07

申请号：PCT/US2008/012324

申请日：2008-10-31

Applicant: CATERPILLAR INC. ,  SHAFER, Scott, F. ,  JONES, Christopher, R.

Inventor： SHAFER, Scott, F. ,  JONES, Christopher, R.

IPC: F04B53/10 ,  F04B1/04 ,  F04B9/04

CPC classification number: 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

Abstract: 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.

Abstract translation: 尽管现代柴油燃料配方旨在减少柴油发动机的排放，但至少一些现代燃料倾向于具有相对较低的润滑性水平。 本文所述的控制阀组件有助于最小化由于通过提供阀元件，阀引导件和插入件而使用这种低润滑性燃料所导致的任何增加的磨损。 阀元件容纳在阀导向器内并且可在打开位置和关闭位置之间移动。 该插入件与阀元件和阀导向件形成第一密封接口和第二密封接口。 当阀元件处于关闭位置时，第一密封接口和第二密封接口两者都接合。 当阀元件处于打开位置时，仅第一密封界面和第二密封界面中的一个被接合。

公开(公告)号：WO2011109325A2

公开(公告)日：2011-09-09

申请号：PCT/US2011/026578

申请日：2011-03-01

Applicant: CATERPILLAR INC. ,  LI, Zhenyu ,  SHAFER, Scott, F.

Inventor： LI, Zhenyu ,  SHAFER, Scott, F.

CPC classification number: F02M63/0285

Abstract: A pump and rail assembly (54) includes a plurality of quills (84) that are compressed between quill seats (108, 109) on a pump (75) and an output rail (76). A rail pressure control valve (77) and a rail pressure sensor (79) are attached to respective ends of the output rail (76). An inlet throttle valve (95) is attached to a housing (100) of the pump and rail assembly (54). Depending upon the application, the output rail (76) may supply fuel to a first injection bank (70) that includes a plurality of fuel injectors (72) in a first common rail (49, 50), and a second fuel injection bank that includes a second common rail (52, 53) and a plurality of fuel injectors (72). Different engines having different numbers of cylinders (11, 16, 21, 26, 27, 33, 35, 41, 43, 48, 51, 57, 60) may use similar pump and rail assemblies that each include a plurality of quills (84), a plurality of pumping elements (94) positioned in a pump housing (100) and an output rail (76). The quills (84) for each of the different engine applications are interchangeable but differ in number. In addition, the pumping elements (94) of each of the different engine applications are also interchangeable but differ in number.

Abstract translation: 泵和轨道组件（54）包括在泵（75）和输出轨道（76）之间的套筒座（108,109）之间被压缩的多个套筒（84）。 轨道压力控制阀（77）和轨道压力传感器（79）安装在输出轨道（76）的相应末端。 入口节流阀（95）附接到泵和轨道组件（54）的壳体（100）。 根据应用，输出轨道（76）可以向包括在第一共轨（49,50）中的多个燃料喷射器（72）的第一注入组（70）供应燃料，以及第二燃料喷射组 包括第二共轨（52,53）和多个燃料喷射器（72）。 具有不同数量的气缸（11,16,21,26,27,33,35,41,43,48,51,57,60）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（84 ），定位在泵壳体（100）中的多个泵送元件（94）和输出轨道（76）。 用于每个不同发动机应用的套筒（84）是可互换的，但数量不同。 此外，每个不同发动机应用的泵送元件（94）也是可互换的，但数量不同。

公开(公告)号：WO2009058279A1

公开(公告)日：2009-05-07

申请号：PCT/US2008/012243

申请日：2008-10-29

Applicant: CATERPILLAR INC. ,  BARTLEY, Bradley, E. ,  SHAFER, Scott, F. ,  TIAN, Steven, Y. ,  TRUBNIKOV, Timur, T. ,  JONES, Christopher, R. ,  ALGOUSI, Haithem

Inventor： BARTLEY, Bradley, E. ,  SHAFER, Scott, F. ,  TIAN, Steven, Y. ,  TRUBNIKOV, Timur, T. ,  JONES, Christopher, R. ,  ALGOUSI, Haithem

IPC: F02M59/10 ,  F02M59/36 ,  F02M59/46 ,  F04B1/04

CPC classification number: F02M59/466 ,  F02M59/102 ,  F02M59/368 ,  F02M63/0225 ,  F04B1/0448 ,  F04B1/0452 ,  F04B1/0456

Abstract: The pump described herein provides a potentially lower cost alternative to conventional high-pressure pumps by providing a head, a plunger, and a control valve assembly. The head defines a valve bore having a first diameter, a plunger bore having a second diameter, and an intermediate chamber having a third diameter. The plunger is configured to reciprocate within the plunger bore. The plunger, the plunger bore, and the intermediate chamber at least partially define a pumping chamber. The control valve assembly is coupled to the head and includes an actuator moveable in response to an input signal and a valve element coupled to the actuator. The valve element is received within the valve bore and moveable between an open and a closed position. The valve element includes a body having a fourth diameter and a valve head having a fifth diameter. The first diameter is no larger than the second diameter.

Abstract translation: 本文所述的泵通过提供头部，柱塞和控制阀组件提供了传统高压泵的潜在的较低成本的替代方案。 头部限定具有第一直径的阀孔，具有第二直径的柱塞孔和具有第三直径的中间室。 柱塞构造成在柱塞孔内往复运动。 柱塞，柱塞孔和中间室至少部分地限定泵送室。 控制阀组件联接到头部并且包括响应于输入信号而可移动的致动器和联接到致动器的阀元件。 阀元件容纳在阀孔内并在打开和关闭位置之间移动。 阀元件包括具有第四直径的主体和具有第五直径的阀头。 第一直径不大于第二直径。

公开(公告)号：WO1993013300A1

公开(公告)日：1993-07-08

申请号：PCT/US1991009750

申请日：1991-12-31

Applicant: CATERPILLAR INC. ,  SHAFER, Scott, F. ,  CARROLL, Thomas, S. ,  MEISTER, Steven, F. ,  ORR, David, R. ,  WEBER, J., Roger

Inventor： CATERPILLAR INC.

IPC: F01L01/16

CPC classification number: F01L1/16

Abstract: 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 valve (12) rides within a guide body (28) having an opening (34) in an end wall (32) thereof through which a first portion (18) of the valve stem (16) extends. As the valve (12) closes, fluid is forced out of a 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.

Abstract translation: 一种用于当阀（12）从开启状态移动到关闭状态时，用于将构件（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）。 阀（12）在其内壁（32）内具有开口（34）的引导体（28）内，阀杆（16）的第一部分（18）穿过该开口延伸。 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，仍然在空间（50）中的流体被压缩，增加其液压并产生阻力以使提升阀（12）进一步运动，从而将其减慢到可接受的冲击速度。

公开(公告)号：WO2011153119A2

公开(公告)日：2011-12-08

申请号：PCT/US2011/038488

申请日：2011-05-31

Applicant: CATERPILLAR INC. ,  SHAFER, Scott, F. ,  LI, Zhenyu ,  IBRAHIM, Daniel, R. ,  TOWER, Benjamin, R. ,  ADAMS, Kenneth, C ,  GERSTNER, Michael, D.

Inventor： SHAFER, Scott, F. ,  LI, Zhenyu ,  IBRAHIM, Daniel, R. ,  TOWER, Benjamin, R. ,  ADAMS, Kenneth, C ,  GERSTNER, Michael, D.

IPC: F02M55/02 ,  F02M61/16 ,  F02M59/44

CPC classification number: F02M55/02 ,  F02M63/005

Abstract: A common rail fuel system (10, 110) includes a reverse flow check valve (60, 160) fluidly positioned between each of a plurality of common rail fuel injectors (40) and an outlet (22, 154) of a high pressure pump (20). The reverse flow check valves (60, 160) divide the overall system fluid volume (80) into an upstream common volume (82) and a plurality of separate downstream volumes (83). The upstream common volume (82) is greater than the sum of the separate downstream volumes (83). The reverse flow check valve (60, 160) is movable between a first configuration with a large flow area (68, 168) and a second configuration with a small flow area (69, 169). The reverse flow check valve (60, 160) associated with each of the individual fuel injectors may be housed in a quill (50) that fluidly connects the fuel injectors to the high pressure common rail (30, 130).

Abstract translation: 共轨燃料系统（10,110）包括流体地定位在多个共轨燃料喷射器（40）中的每一个和高压泵的出口（22,154）之间的逆流止回阀（60,160） 20）。 逆流止回阀（60,160）将整个系统流体体积（80）划分成上游公共容积（82）和多个单独的下游容积（83）。 上游公共容积（82）大于分开的下游容积（83）的总和。 逆流止回阀（60,160）可在具有大流量区域（68,168）的第一配置和具有小流动面积（69,169）的第二配置之间移动。 与每个单独的燃料喷射器相关联的逆流止回阀（60,160）可以容纳在将燃料喷射器流体连接到高压共轨（30,130）的套筒（50）中。