公开(公告)号：US20160201659A1

公开(公告)日：2016-07-14

申请号：US14597019

申请日：2015-01-14

Applicant: Caterpillar Inc.

Inventor： Bryan E. Nelson ,  Daniel R. Baldwin ,  Alan R. Stockner ,  Robert M. Campion ,  Cory A. Brown ,  Joshua W. Steffen ,  Dana R. Coldren ,  Sana Mahmood

IPC: F04B27/10 ,  F16C23/08 ,  F16C19/54

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

Abstract: A bearing arrangement for a wobble plate piston pump includes first, second, third, and fourth bearing assemblies. The first and second bearing assemblies support the drive shaft portion for rotation within the housing about the central longitudinal axis, while the third and fourth bearing assemblies support the load plate for rotation relative to the offset shaft portion of the shaft. The second bearing assembly is distally disposed from the first, the third disposed distally to second, and the fourth disposed distally to third. The fourth bearing assembly is the most distally disposed bearing assembly along the shaft.

Abstract translation: 摆动板活塞泵的轴承装置包括第一，第二，第三和第四轴承组件。 第一和第二轴承组件支撑驱动轴部分，用于围绕中心纵向轴线在壳体内旋转，同时第三和第四轴承组件支撑负载板以相对于轴的偏心轴部分旋转。 第二轴承组件从第一轴向组件向远侧设置，第三轴向组件向远侧配置到第二轴承组件，而第四轴向组件向远侧配置到第二轴承组件。 第四轴承组件是沿着轴的最远端布置的轴承组件。

公开(公告)号：US20140346254A1

公开(公告)日：2014-11-27

申请号：US14453646

申请日：2014-08-07

Applicant: Caterpillar Inc.

Inventor： Dana R. Coldren ,  Alan R. Stockner ,  David T. Montgomery

IPC: F02M67/10 ,  F02M67/14

CPC classification number: F02M55/002 ,  F02D19/0694 ,  F02M43/04 ,  F02M47/027 ,  Y02T10/36

Abstract: A fuel injector comprises a liquid fuel cavity and a gas fuel cavity disposed within an injector cavity housing a liquid needle valve stem and a gas needle valve stem, respectively. The gas needle valve stem includes a guide stem portion distal to the injector tip and a check proximal to the injector tip. A drain passage terminates in a drain annulus groove disposed in a guide cavity wall of a gas valve guide cavity. The gas valve guide cavity houses the guide stem portion defining a clearance between the guide cavity wall below the drain annulus groove and the guide stem portion. The liquid fuel from the drain passage flows to the gas needle valve stem and an inner surface of the gas fuel cavity, through the clearance. The liquid fuel drained through the clearance collects in a plurality of grooves on the check.

Abstract translation: 燃料喷射器包括液体燃料腔和设置在分别容纳液体针阀杆和气针阀杆的注射器腔内的气体燃料腔。 气针阀杆包括远离喷射器尖端的导杆部分和靠近喷射器尖端的支架。 排水通道终止于设置在气阀导向腔的引导腔壁中的排水环形槽。 气阀导向腔容纳导向杆部分，该导向杆部分在排水环形槽下方的引导腔壁与引导杆部分之间形成间隙。 来自排水通道的液体燃料通过间隙流到气针阀杆和气体燃料腔的内表面。 通过间隙排出的液体燃料收集在支票上的多个凹槽中。

公开(公告)号：US20140331964A1

公开(公告)日：2014-11-13

申请号：US13890671

申请日：2013-05-09

Applicant: Caterpillar, Inc.

Inventor： Steven Thomas Grant ,  Frank Lombardi ,  Daniel R. Puckett ,  Alan R. Stockner

IPC: F02D19/06 ,  F02M43/00

CPC classification number: F02D19/0602 ,  F02D19/0605 ,  F02D19/0623 ,  F02D19/0628 ,  F02D19/0647 ,  F02D19/0681 ,  F02D19/0694 ,  F02D19/10 ,  F02M43/00 ,  Y02T10/36

Abstract: A compression ignition engine is fueled from common rail fuel injectors that predominately inject natural gas fuel that is compression ignited with a small pilot injection of liquid diesel fuel. Prior to servicing the engine, a service tool may establish a communication link with an electronic controller that controls operation of the engine. Pressure information for a gaseous fuel common rail and a liquid fuel common rail are displayed with the service tool, when the engine is stopped, in order to determine whether the rails are completely depressurized indicating that it is then o.k. to perform servicing tasks.

Abstract translation: 压燃式发动机由共轨燃油喷射器燃料，其主要喷射天然气燃料，该天然气燃料通过小型先导式液体柴油燃料喷射被压缩点燃。 在维修发动机之前，服务工具可以建立与控制发动机运行的电子控制器的通信链路。 当发动机停止时，与维修工具一起显示用于气体燃料共轨和液体燃料共轨的压力信息，以便确定轨道是否被完全减压，从而指示其然后是o.k。 执行维修任务。

公开(公告)号：US20140216403A1

公开(公告)日：2014-08-07

申请号：US13761198

申请日：2013-02-07

Applicant: CATERPILLAR INC.

Inventor： Alan R. Stockner

IPC: F02M69/08 ,  F17C7/04

CPC classification number: F02M69/08 ,  F02D19/0647 ,  F02D19/0684 ,  F02D19/10 ,  F02D41/0027 ,  F02D41/064 ,  F02D41/068 ,  F02D2200/021 ,  F02D2200/023 ,  F02M21/0215 ,  F02M21/06 ,  F02N19/04 ,  F02N2200/023 ,  F02N2200/024 ,  F17C7/04 ,  F17C2205/0326 ,  F17C2205/0332 ,  F17C2205/0341 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2223/046 ,  F17C2225/0123 ,  F17C2225/035 ,  F17C2227/0316 ,  F17C2227/0323 ,  F17C2227/0393 ,  F17C2250/032 ,  F17C2250/043 ,  F17C2250/0491 ,  F17C2265/066 ,  F17C2270/0173 ,  Y02T10/32 ,  Y02T10/36

Abstract: A gas fuel system for an engine is disclosed. The gas fuel system includes a fuel tank configured to supply cryogenic fuel. A cryogenic pump is configured to pressurize the cryogenic fuel received from the fuel tank. A heat exchanger is configured to receive the pressurized cryogenic fuel and an engine coolant. Further, the engine coolant flows through the heat exchanger to vaporize the pressurized cryogenic fluid. The gas system further includes a controller configured to receive a signal indicative of temperature of the engine coolant. Further, the controller sends a signal to impose one or more parasitic loads on the engine based on the temperature of the engine coolant.

Abstract translation: 公开了一种用于发动机的燃气系统。 气体燃料系统包括构造成供应低温燃料的燃料箱。 低温泵构造成对从燃料箱接收的低温燃料加压。 热交换器被配置为接收加压的低温燃料和发动机冷却剂。 此外，发动机冷却剂流过热交换器以使加压的低温流体蒸发。 气体系统还包括被配置为接收指示发动机冷却剂的温度的信号的控制器。 此外，控制器基于发动机冷却剂的温度发送信号以在发动机上施加一个或多个寄生负载。