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1. 发明授权

US09064401B2 Liquid natural gas cryogenic tank leak detection system 有权
标题翻译：液体天然气低温罐泄漏检测系统
公开(公告)号：US09064401B2
公开(公告)日：2015-06-23
申请号：US13888522
申请日：2013-05-07
申请人： Caterpillar Inc.
发明人： Steven Thomas Grant , Frank Lombardi , Daniel Reese Puckett
IPC分类号： G08B21/00 , G08B21/18
CPC分类号： G08B21/182 , B65D90/50 , F17C9/00 , F17C13/02 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2223/046 , F17C2250/032 , F17C2250/0408 , F17C2250/0421 , F17C2250/0426 , F17C2250/043 , F17C2250/0439 , F17C2250/0473 , F17C2250/0491 , F17C2250/0495 , F17C2260/038 , F17C2265/06 , F17C2270/0581 , G01M3/3227 , G01M3/3245 , G01M3/3254
摘要： A method of detecting leakage of a fluid from a tank is disclosed. The method may include determining cumulative commanded fluid consumption of the fluid in the tank over a selected time period, determining an actual change of a volume of the fluid in the tank over the selected time period, and comparing the cumulative commanded fluid consumption to the actual change of volume of the fluid. The method may further include producing a leak warning upon the actual change of volume of the fluid over the selected time period exceeding the cumulative commanded fluid consumption over the selected time period plus a threshold value.
摘要翻译：公开了一种检测来自罐的流体泄漏的方法。该方法可以包括在所选择的时间段内确定罐中的流体的累积指令流体消耗量，确定在所选择的时间段内罐中的流体的实际变化，以及将累积指令的流体消耗与实际液体体积变化。该方法可以进一步包括在所选择的时间段内超过在所选择的时间段内的累积指令的流体消耗加上阈值的流体的实际体积变化时产生泄漏警告。

2. 发明申请

US20140202429A1 Compressed Natural Gas Fuel Mass Control System 有权
标题翻译：压缩天然气燃料质量控制系统
公开(公告)号：US20140202429A1
公开(公告)日：2014-07-24
申请号：US13749011
申请日：2013-01-24
申请人： CATERPILLAR INC.
发明人： Steven Thomas Grant , Frank Lombardi , Daniel Reese Puckett , Cory A. Brown , Joshua Wayne Steffen , Paul Joseph Desiderio
IPC分类号： F02M69/00
CPC分类号： F02M69/00 , F02D19/02 , F02M21/02 , F02M21/0218 , F02M21/023 , F02M21/0236 , F02M21/0239 , Y02T10/32
摘要： A system, related method and computer program product are disclosed for controlling fuel mass of CNG received by an engine. The system may comprise a heat exchanger configured to receive CLNG and supply coolant and to output CNG and return coolant, an injector configured to inject CNG into the engine, a gas line between the injector and heat exchanger, a control valve configured to receive return coolant from the heat exchanger and to change the amount of return coolant flowing through control valve, and a controller connected to the control valve. The gas line may be configured to carry CNG from the heat exchanger to the injector. The controller may be configured to maintain a Gas Line Temperature within an operating range by adjusting the amount of return coolant flowing through the control valve based, at least in part, on the Gas Line Temperature and a Target Return Coolant Temperature.
摘要翻译：公开了一种用于控制由发动机接收的CNG的燃料质量的系统，相关方法和计算机程序产品。该系统可以包括热交换器，其被配置为接收CLNG并供应冷却剂并输出CNG并返回冷却剂;配置成将CNG注入发动机的喷射器，喷射器和热交换器之间的气体管线;配置成接收返回冷却剂的控制阀并且改变流过控制阀的冷却剂回流量，以及连接到控制阀的控制器。气体管线可以被配置为将CNG从热交换器运送到喷射器。控制器可以被配置为通过至少部分地基于气体管线温度和目标返回冷却剂温度调节流过控制阀的回流冷却剂的量来将气体管线温度维持在工作范围内。

3. 发明授权

US09394848B2 End-of current trim for common rail fuel system 有权
标题翻译：用于共轨燃油系统的当前装配结束
公开(公告)号：US09394848B2
公开(公告)日：2016-07-19
申请号：US14153485
申请日：2014-01-13
申请人： Caterpillar Inc.
发明人： Daniel Reese Puckett , Bryan Moore , Michael Edward Sattler , Prasanna Mohan Ballal , Bradley Scott Bashore , Kranti Kumar Nellutla
IPC分类号： F02B15/00 , F02D41/38 , F02M51/06 , F02D41/20 , F02M63/00 , F02M47/02
CPC分类号： F02M47/027 , F02D41/20 , F02D41/3082 , F02D41/3836 , F02D2041/2044 , F02D2041/2051 , F02D2041/2055 , F02D2041/2058 , F02M51/0625 , F02M63/0022 , F02M63/0075
摘要： Fuel is injected by energizing a solenoid of a fuel injector for an on-time that terminates at a first end-of-current timing. An end-of-current trim is determined at least in part by estimating a duration between an induced current event in a circuit of the solenoid and a valve/armature interaction event. An induced current event occurs when an armature abruptly stops, and a valve/armature interaction event occurs when the armature couples with or de-couples from the valve member. Fuel is injected in a subsequent injection event by adjusting the end-of-current timing by the end-of-current trim.
摘要翻译：通过为燃料喷射器的螺线管通电导通时间来燃料燃料，该导通时间终止于第一个电流结束定时。至少部分地通过估计螺线管的电路中的感应电流事件与阀/电枢相互作用事件之间的持续时间来确定电流终止。当电枢突然停止时发生感应电流事件，并且当电枢与阀构件耦合或解耦时，发生阀/电枢相互作用事件。通过将电流终止时间调整为电流截止电流，在后续的注入事件中注入燃料。

4. 发明授权

US09228574B2 Hydraulic relief and switching logic for cryogenic pump system 有权
标题翻译：低压泵系统的液压释放和开关逻辑
公开(公告)号：US09228574B2
公开(公告)日：2016-01-05
申请号：US13778280
申请日：2013-02-27
申请人： CATERPILLAR INC.
发明人： Daniel Reese Puckett
IPC分类号： F04B9/10 , F04B9/103 , F04B15/08
CPC分类号： F04B9/10 , F04B9/103 , F04B15/08
摘要： A cryogenic hydraulic reciprocating piston pump includes a casing which defines a piston chamber. The sidewall of the piston chamber includes a retraction spill port as well as a pumping spill port. At the end of a retraction stroke, a retraction spill passageway that extends through the piston becomes aligned with the retraction spill port and fluid is communicated from the pressurized side of the piston to the unpressurized side of the piston to stop the retraction stroke before the piston “bottoms out”. Similarly, at the end of a pumping stroke, a pumping spill passageway that extends through the piston becomes aligned with the pumping spill port which provides communication between the pressurized side of the piston and the unpressurized side of the piston thereby stopping movement of the piston before it “bottoms out”.
摘要翻译：低温液压往复活塞泵包括限定活塞室的壳体。活塞室的侧壁包括回缩溢出口以及泵送溢出口。在回缩行程结束时，延伸穿过活塞的回缩溢流通道与回缩溢出口对准，并且流体从活塞的加压侧连通到活塞的非加压侧，以在活塞之前停止回缩行程 “底部出”。类似地，在泵送冲程结束时，延伸穿过活塞的泵送溢流通道与泵送溢流口对准，该泵送溢流口提供活塞的加压侧与活塞的非加压侧之间的连通，从而阻止活塞的运动它“底”了。

5. 发明授权

US09091240B2 Compressed natural gas fuel mass control system 有权
标题翻译：压缩天然气燃料质量控制系统
公开(公告)号：US09091240B2
公开(公告)日：2015-07-28
申请号：US13749011
申请日：2013-01-24
申请人： Caterpillar Inc.
发明人： Steven Thomas Grant , Frank Lombardi , Daniel Reese Puckett , Cory A. Brown , Joshua Wayne Steffen , Paul Joseph Desiderio
IPC分类号： F02G5/00 , F02M69/00 , F02M21/02 , F02D19/02
CPC分类号： F02M69/00 , F02D19/02 , F02M21/02 , F02M21/0218 , F02M21/023 , F02M21/0236 , F02M21/0239 , Y02T10/32
摘要： A system, related method and computer program product are disclosed for controlling fuel mass of CNG received by an engine. The system may comprise a heat exchanger configured to receive CLNG and supply coolant and to output CNG and return coolant, an injector configured to inject CNG into the engine, a gas line between the injector and heat exchanger, a control valve configured to receive return coolant from the heat exchanger and to change the amount of return coolant flowing through control valve, and a controller connected to the control valve. The gas line may be configured to carry CNG from the heat exchanger to the injector. The controller may be configured to maintain a Gas Line Temperature within an operating range by adjusting the amount of return coolant flowing through the control valve based, at least in part, on the Gas Line Temperature and a Target Return Coolant Temperature.
摘要翻译：公开了一种用于控制由发动机接收的CNG的燃料质量的系统，相关方法和计算机程序产品。该系统可以包括热交换器，其被配置为接收CLNG并供应冷却剂并输出CNG并返回冷却剂;配置成将CNG注入发动机的喷射器，喷射器和热交换器之间的气体管线;配置成接收返回冷却剂的控制阀并且改变流过控制阀的冷却剂回流量，以及连接到控制阀的控制器。气体管线可以被配置为将CNG从热交换器运送到喷射器。控制器可以被配置为通过至少部分地基于气体管线温度和目标返回冷却剂温度调节流过控制阀的回流冷却剂的量来将气体管线温度维持在工作范围内。

6. 发明申请

US20150198110A1 END-OF-CURRENT TRIM FOR COMMON RAIL FUEL SYSTEM 有权
标题翻译：公用铁路燃料系统终止电流
公开(公告)号：US20150198110A1
公开(公告)日：2015-07-16
申请号：US14153485
申请日：2014-01-13
申请人： Caterpillar, Inc.
发明人： Daniel Reese Puckett , Bryan Moore , Michael Edward Sattler , Prasanna Mohan Ballal , Bradley Scott Bashore , Kranti Kumar Nellutla
IPC分类号： F02D41/38 , F02M51/06
CPC分类号： F02M47/027 , F02D41/20 , F02D41/3082 , F02D41/3836 , F02D2041/2044 , F02D2041/2051 , F02D2041/2055 , F02D2041/2058 , F02M51/0625 , F02M63/0022 , F02M63/0075
摘要： Fuel is injected by energizing a solenoid of a fuel injector for an on-time that terminates at a first end-of-current timing. An end-of-current trim is determined at least in part by estimating a duration between an induced current event in a circuit of the solenoid and a valve/armature interaction event. An induced current event occurs when an armature abruptly stops, and a valve/armature interaction event occurs when the armature couples with or de-couples from the valve member. Fuel is injected in a subsequent injection event by adjusting the end-of-current timing by the end-of-current trim.
摘要翻译：通过为燃料喷射器的螺线管通电导通时间来燃料燃料，该导通时间终止于第一个电流结束定时。至少部分地通过估计螺线管的电路中的感应电流事件与阀/电枢相互作用事件之间的持续时间来确定电流终止。当电枢突然停止时发生感应电流事件，并且当电枢与阀构件耦合或解耦时，发生阀/电枢相互作用事件。通过将电流终止时间调整为电流截止电流，在后续的注入事件中注入燃料。

7. 发明授权

US10041432B2 Fuel system having pump prognostic functionality 有权
公开(公告)号：US10041432B2
公开(公告)日：2018-08-07
申请号：US15401911
申请日：2017-01-09
申请人： Caterpillar Inc.
发明人： Daniel Reese Puckett , Bradley Scott Bashore , Michael Edward Sattler , Michael Scott Marchionda , Sasidhar Rayasam , Kranti Kumar Nellutla
IPC分类号： F02D41/00 , F02D41/30 , F02M55/02 , F02M63/02
CPC分类号： F02D41/3082 , F02D41/042 , F02D41/3836 , F02D41/3863 , F02D2041/224 , F02D2041/225 , F02D2200/0602 , F02D2200/101 , F02M55/025 , F02M63/0265 , F02M2200/247
摘要： A fuel system is disclosed for use with an engine. The fuel system may have a plurality of fuel injectors, a common rail fluidly, a pump, and an outlet valve associated with the pump. The fuel system may also have a sensor configured to generate a signal indicative of a pressure of fuel in the common rail, and an electronic control module. The electronic control module may be configured to detect a zero-fueling condition, to determine a first pressure decay rate of the common rail during the zero-fueling condition while the pump is rotating, and to determine a second pressure decay rate of the common rail during the zero-fueling condition after the pump has stopped rotating. The electronic control module may also be configured to selectively generate a diagnostic flag associated with wear of the outlet valve based on the first and second pressure decay rates.

8. 发明申请

US20140241913A1 HYDRAULIC RELIEF AND SWITCHING LOGIC FOR CRYOGENIC PUMP SYSTEM 有权
标题翻译：液压泵系统的液压减速和开关逻辑
公开(公告)号：US20140241913A1
公开(公告)日：2014-08-28
申请号：US13778280
申请日：2013-02-27
申请人： CATERPILLAR INC.
发明人： Daniel Reese Puckett
IPC分类号： F04B9/10
CPC分类号： F04B9/10 , F04B9/103 , F04B15/08
摘要： A cryogenic hydraulic reciprocating piston pump includes a casing which defines a piston chamber. The sidewall of the piston chamber includes a retraction spill port as well as a pumping spill port. At the end of a retraction stroke, a retraction spill passageway that extends through the piston becomes aligned with the retraction spill port and fluid is communicated from the pressurized side of the piston to the unpressurized side of the piston to stop the retraction stroke before the piston “bottoms out”. Similarly, at the end of a pumping stroke, a pumping spill passageway that extends through the piston becomes aligned with the pumping spill port which provides communication between the pressurized side of the piston and the unpressurized side of the piston thereby stopping movement of the piston before it “bottoms out”.
摘要翻译：低温液压往复活塞泵包括限定活塞室的壳体。活塞室的侧壁包括回缩溢出口以及泵送溢出口。在回缩行程结束时，延伸穿过活塞的回缩溢流通道与回缩溢出口对准，并且流体从活塞的加压侧连通到活塞的非加压侧，以在活塞之前停止回缩行程 “底部出”。类似地，在泵送冲程结束时，延伸穿过活塞的泵送溢流通道与泵送溢流口对准，该泵送溢流口提供活塞的加压侧与活塞的非加压侧之间的连通，从而阻止活塞的运动它“底”了。

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