公开(公告)号：WO2016122826A1

公开(公告)日：2016-08-04

申请号：PCT/US2015/068254

申请日：2015-12-31

Applicant: CATERPILLAR INC.

Inventor： STEFFEN, Joshua, W. ,  COLDREN, Dana, R. ,  STOCKNER, Alan, R. ,  MAHMOOD, Sana ,  CAMPION, Robert, M. ,  BEAN, Sunil Jefferey

IPC: F02M21/02 ,  F04B1/16 ,  F04B15/08

CPC classification number: F04B1/143 ,  F04B1/16 ,  F04B15/08 ,  F04B2015/081

Abstract: A pumping mechanism (300) includes a barrel assembly (310) having a plunger bore (320). The plunger bore (320) has a longitudinal axis. The pumping mechanism (300) also includes a plunger (330) configured to slide within the plunger bore (320) parallel to the longitudinal axis. The pumping mechanism (300) further includes a push rod (114) separate from the plunger (330). The push rod (114) is configured to move away from the plunger (330) to be spaced from the plunger (330), and the push rod (114) is further configured to move within the plunger bore (320) to push the plunger (330).

Abstract translation: 泵送机构（300）包括具有柱塞孔（320）的筒组件（310）。 柱塞孔（320）具有纵向轴线。 泵送机构（300）还包括柱塞（330），其被构造成在柱塞孔（320）内平行于纵向轴线滑动。 泵送机构（300）还包括与柱塞（330）分离的推杆（114）。 推杆（114）构造成远离柱塞（330）移动以与柱塞（330）间隔开，并且推杆（114）进一步构造成在柱塞孔（320）内移动以推动柱塞 （330）。

公开(公告)号：WO2013082001A1

公开(公告)日：2013-06-06

申请号：PCT/US2012/066600

申请日：2012-11-27

Applicant: CATERPILLAR INC.

Inventor： JONES, Christopher, Robert ,  LEWIS, Stephen, Robert ,  MAHMOOD, Sana ,  ROGERS, Eric, L.

IPC: F02M59/10 ,  F02M59/44 ,  F02M55/02

CPC classification number: F01L1/14 ,  F01L2105/02 ,  F01L2810/02 ,  F02M59/102 ,  F02M2200/02

Abstract: A common rail fuel pump (10) includes a cam shaft (18) with at least one cam rotatably supported in a pump housing (11). A plurality of tappet assemblies (30) are each reciprocatingly movable in the pump housing (11), and include an axle pin (40) mounted in a tappet (31), and a roller (50) mounted in contact for rotation about the axle pin (40). Each end of the roller (50) includes a plurality of non-contiguous planar thrust surfaces separated by lubrication grooves (56). A lubrication pathway (44) for the roller (50) includes in sequence a lubrication passage that opens to a roller bearing surface (43), movement along the roller bearing surface (43) into the lubrication grooves (56), and then between the planar thrust surface of the roller (50) and a counterpart thrust face of the tappet (31) responsive to rotation of the roller (50) on the cam shaft (18).

Abstract translation: 共轨燃料泵（10）包括凸轮轴（18），其具有可旋转地支撑在泵壳体（11）中的至少一个凸轮。 多个挺杆组件（30）都可以在泵壳体（11）中往复运动，并且包括安装在挺杆（31）中的轴销（40）和安装成接触的滚子（50），以绕轴旋转 销（40）。 辊（50）的每个端部包括由润滑槽（56）分开的多个不连续的平面推力面。 用于辊（50）的润滑路径（44）依次包括通向滚子轴承表面（43）的润滑通道，沿着滚子轴承表面（43）移动到润滑槽（56）中，然后在 响应于所述辊（50）在所述凸轮轴（18）上的旋转，所述辊（50）的平面推力表面和所述挺杆（31）的对应推力面。

公开(公告)号：WO2020018263A1

公开(公告)日：2020-01-23

申请号：PCT/US2019/040130

申请日：2019-07-01

Applicant: CATERPILLAR INC.

Inventor： CAMPION, Robert M. ,  DIERS, Dean C. ,  MAHMOOD, Sana ,  ANDERS, Jonathan ,  JOHN, Bobby ,  CHITTENDEN, Jonathan R.

IPC: F02M43/04 ,  F02M63/00 ,  F02M47/02 ,  F02M45/08

Abstract: A liquid fuel injector (56) such as for a dual fuel system (34) in an internal combustion engine (10) includes two-way injection control valves (82,85) for controlling twin outlet checks (74,78). A first set of orifices (86) are arranged in an A-F-Z pattern, and a second set of orifices are arranged in an A-F-Z pattern, within the fuel injector (56), among a high-pressure inlet passage (60), a low-pressure space (72), and first and second outlet check control chambers (68,70), respectively. A common nozzle supply cavity (90) is fluidly connected to the high-pressure inlet passage (60) and supplies each of two sets of nozzle outlets (64,66) opened and closed by the twin outlet checks (74,78).

公开(公告)号：WO2017003569A1

公开(公告)日：2017-01-05

申请号：PCT/US2016/032398

申请日：2016-05-13

Applicant: CATERPILLAR INC.

Inventor： BROWN, Cory A. ,  BRASCHE, Adrienne M. ,  BEAN, Sunil J. ,  HAZARI, Shivangini S. ,  MAHMOOD, Sana ,  ARYA, Nikhil M. ,  STEFFEN, Joshua W. ,  BALDWIN, Daniel R. ,  COLDREN, Dana R. ,  CAMPION, Robert M. ,  STOCKNER, Alan R.

IPC: F02M37/08 ,  F02M21/02 ,  F02D19/06

CPC classification number: F04B23/02 ,  F04B9/1176 ,  F04B23/023 ,  F04B23/06 ,  F04B37/08 ,  F04B49/065 ,  F04B2015/081 ,  F17C2227/0142

Abstract: A cryogenic fluid pump (118) includes a plurality of pumping elements (400), each of the plurality of pumping elements (400) having an actuator portion (302) that is associated with and configured to selectively activate one end of a pushrod (304) in response to a command by an electronic controller (120), an activation portion (308) associated with an opposite end of the pushrod (304), and a pumping portion (310) associated with the activation portion (308). For each of the plurality of pumping elements (400), the pumping portion (310) is activated for pumping a fluid by the activation portion (308), which activation portion (308) is activated by the actuator portion (302). The electronic controller (120) is configured to selectively activate each of the plurality of pumping elements (400) such that a flow of fluid from the cryogenic fluid pump (118) results from continuous activations of the plurality of pumping elements (400) at selected dwell times between activations of successive pumping elements (400).

Abstract translation: 低温流体泵（118）包括多个泵送元件（400），所述多个泵送元件（400）中的每一个具有致动器部分（302），致动器部分（302）与选择性地激活推杆（304 ）响应于电子控制器（120）的命令，与推杆（304）的相对端相关联的激活部分（308）以及与激活部分（308）相关联的泵送部分（310）。 对于多个泵送元件（400）中的每一个，泵送部分（310）被激活以通过致动部分（308）泵送流体，该致动部分（308）由致动器部分（302）激活。 电子控制器（120）被配置为选择性地激活多个泵送元件（400）中的每一个，使得来自低温流体泵（118）的流体流由所选择的多个泵送元件（400）的连续激活导致 连续泵送元件激活之间的停留时间（400）。

公开(公告)号：WO2016153785A1

公开(公告)日：2016-09-29

申请号：PCT/US2016/021576

申请日：2016-03-09

Applicant: CATERPILLAR INC.

Inventor： COLDREN, Dana R. ,  MAHMOOD, Sana

IPC: F04B35/04 ,  F02M21/02 ,  F02M37/04

CPC classification number: F04B19/003 ,  F04B1/12 ,  F04B9/117 ,  F04B15/08 ,  F04B23/02 ,  F04B53/16

Abstract: A pump (10) is disclosed for use in pressurizing a cryogenic fluid. The pump may have a barrel (40), and a boost enclosure (36) disposed around the barrel. The pump may also have a boost plunger (48) disposed inside the barrel and configured to discharge fluid into the boost enclosure. The pump may further have a main plunger (50) disposed inside the barrel and configured to receive fluid from the boost enclosure and to increase a pressure of the fluid.

Abstract translation: 公开了用于对低温流体加压的泵（10）。 泵可以具有桶（40）和围绕桶设置的升压外壳（36）。 泵还可以具有设置在筒内并被配置为将流体排放到升压罩中的升压柱塞（48）。 泵还可以具有设置在筒体内的主柱塞（50），并配置成接收来自升压罩的流体并增加流体的压力。

公开(公告)号：WO2016114894A1

公开(公告)日：2016-07-21

申请号：PCT/US2015/066162

申请日：2015-12-16

Applicant: CATERPILLAR INC.

Inventor： NELSON, Bryan E. ,  BALDWIN, Daniel R. ,  STOCKNER, Alan R. ,  CAMPION, Robert M. ,  BROWN, Cory A. ,  STEFFEN, Joshua W. ,  COLDREN, Dana R. ,  MAHMOOD, Sana

IPC: F04B39/00 ,  F04B53/00 ,  F04B37/08

CPC classification number: F04B27/1054 ,  F04B27/1063 ,  F04B37/08 ,  F16C19/06 ,  F16C19/30 ,  F16C19/547 ,  F16C23/086 ,  F16C2360/00

Abstract: A bearing arrangement 24 for a wobble plate piston pump 10 includes first, second, third, and fourth bearing assemblies 90, 92, 94, 96. The first and second bearing assemblies 90, 92 support the drive shaft portion 70 for rotation within the housing 16, 18 about the central longitudinal axis 74, while the third and fourth bearing assemblies 94, 96 support the load plate 28 for rotation relative to the offset shaft portion 72 of the shaft 26. The second bearing assembly 92 is distally disposed from the first 90, the third 94 disposed distally to second 92, and the fourth 96 disposed distally to third 94. The fourth bearing assembly 96 is the most distally disposed bearing assembly along the shaft 26.

Abstract translation: 用于摆盘活塞泵10的轴承装置24包括第一，第二，第三和第四轴承组件90,92,94,96。第一和第二轴承组件90,92支撑驱动轴部分70以在壳体内旋转 16,18围绕中心纵向轴线74，而第三和第四轴承组件94,96支撑负载板28，以相对于轴26的偏心轴部分72旋转。第二轴承组件92从第一轴 90，第三个94向远端设置到第二个92，第四个96设置在远端到第三个94.第四个轴承组件96是沿轴26最向远的轴承组件。

公开(公告)号：WO2013070579A1

公开(公告)日：2013-05-16

申请号：PCT/US2012/063667

申请日：2012-11-06

Applicant: CATERPILLAR INC.

Inventor： MAHMOOD, Sana ,  LI, Zhenyu ,  HERR, Michael, Curtis ,  HEFLER, Gregory, William ,  WILLIAMS, Linda, Angharad

IPC: F02M61/10 ,  F02M51/06 ,  F02M61/18

CPC classification number: F02M47/027 ,  F02M55/008 ,  F02M2200/28

Abstract: A common rail fuel injector (10) includes a needle valve member (30) that moves to open and close nozzle outlets (45) for a fuel injection event responsive to pressure in a needle control chamber (52). Between injection events, the needle control chamber (52) is fluidly connected to the fuel inlet (44) by a first pathway (61) that includes a Z orifice (66), and fluidly connected to the fuel inlet (44) by a second pathway (62) that includes an F orifice 68, an intermediate chamber (54) and an A orifice (67). During an injection event, the needle control chamber (52) is fluidly connected to a drain outlet (46) by a third pathway (63) that includes the A orifice (67), the intermediate chamber (54) an E orifice (69) and a buffer chamber (55), which may assist in avoiding cavitation erosion in a sensitive area associated with a flat control valve seat (23). Different performance characteristics are achieved by adjusting the sizes of the respective of F, A, Z and E orifices (68, 67, 66, 69).

Abstract translation: 共轨燃料喷射器（10）包括针阀构件（30），其针对针控制室（52）中的压力而移动以打开和关闭用于燃料喷射事件的喷嘴出口（45）。 在注射事件之间，针控制室52通过包括Z孔口66的第一路径61流体连接到燃料入口44，并且通过第二路径流体连接到燃料入口44。 通道（62），其包括F孔口68，中间室（54）和A孔口（67）。 在注射事件期间，针控制室（52）通过包括A孔（67），中间室（54），E孔（69）的第三路径（63）流体地连接到排水口（46） 和缓冲室（55），其可有助于避免在与平坦控制阀座（23）相关联的敏感区域中的空化侵蚀。 通过调整F，A，Z和E各自的尺寸（68,67,66,69）来实现不同的性能特征。