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公开(公告)号：US11598302B2
公开(公告)日：2023-03-07
申请号：US17102524
申请日：2020-11-24
Applicant: Caterpillar Inc.
Inventor： Daniel R. Puckett , Bradley S. Bashore
Abstract: A pump health assessment system and a method for providing a pump health of a pump is disclosed. The method includes: determining that there is an imbalance in the pump; increasing pump flow from the pump; measuring a rail pressure of a fuel rail; determining if the rail pressure is substantially equal to an expected rail pressure profile; and in accordance with a determination that the rail pressure is not substantially equal to the rail pressure profile, outputting an indication of pump damage.
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公开(公告)号：US11415070B2
公开(公告)日：2022-08-16
申请号：US17102490
申请日：2020-11-24
Applicant: Caterpillar Inc.
Inventor： Daniel R. Puckett , Michael E. Sattler , Dustin K. Fee , Gregory L. Armstrong
IPC: F02D41/22 , F02M51/00 , G01R19/165 , F02D41/30
Abstract: A method for identifying a fuel injector characteristic may include generating a signal to supply electrical current to the fuel injector, and monitoring the electrical current supplied to the fuel injector. The method may also include identifying the characteristic of the fuel injector based on the electrical current, the characteristic including a type of fuel injector, and performing a corrective action based on the type of fuel injector which was identified based on the electrical current.
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公开(公告)号：US09683498B2
公开(公告)日：2017-06-20
申请号：US14716603
申请日：2015-05-19
Applicant: Caterpillar Inc.
Inventor： Urvish Joshi , Travis Barnes , Eric W. Cler , Anand KrishnamurthyGopalan , Eric A. Hutchison , Kirti Tamhane , Andrew N. Schifferer , Tyler Bowman , Kevin Sergott , Matthew Mowers , Daniel R. Puckett
CPC classification number: F02D41/0007 , F02B2037/125 , F02D31/001 , F02D41/0225 , F02D41/18 , Y02T10/144
Abstract: A method for operating an internal combustion engine includes monitoring engine parameters using an electronic controller, determining a surge speed limit for the engine based on a compressor map, determining an offset engine speed based on a margin between the surge speed limit and an engine speed, determining a minimum engine speed based on the margin, applying the offset engine speed to an engine speed signal to provide an adjusted engine speed, and applying the adjusted engine speed to a desired engine speed when a speed of the engine approaches the surge speed limit.
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4.发明授权公开(公告)号：US09181886B2
公开(公告)日：2015-11-10
申请号：US13889574
申请日：2013-05-08
Applicant: Caterpillar, Inc.
Inventor： Steven Thomas Grant , Frank Lombardi , Daniel R. Puckett , Cory Brown
CPC classification number: F02D41/0025 , F02D19/0605 , F02D19/061 , F02D19/0694 , F02D19/10 , F02D41/0027 , F02D41/10 , F02D41/3845 , F02D2041/3881 , 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. Before and after a rapid fueling increase transient, the liquid and gaseous rail pressures are controlled toward respective pressures based upon engine speed and load. During the transient, the liquid rail pressure is controlled toward an elevated liquid pressure in order to cause a surge in the supply of gaseous fuel to the gaseous fuel common rail to proactively satisfy the increased gaseous fuel injection rate while obviating a substantial pressure deficit in the gaseous fuel common rail.
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。 在快速加油增加瞬态之前和之后，基于发动机转速和负载，液压和气体轨道压力被控制到相应的压力。 在瞬态期间，将液体轨道压力控制到升高的液体压力，以便引起向气体燃料共轨供应气体燃料的浪涌，以主动满足增加的气体燃料喷射速率，同时避免在 气体燃料共轨。
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公开(公告)号：US08936009B2
公开(公告)日：2015-01-20
申请号：US13665534
申请日：2012-10-31
Applicant: Caterpillar Inc.
Inventor： Daniel R. Puckett , Joshua W. Steffen , Frank J. Lombardi , Steven T. Grant
IPC: F02M21/02
CPC classification number: F02D19/10 , F02D19/0673 , Y02T10/36 , Y10T137/0379 , Y10T137/7782 , Y10T137/7793
Abstract: A pressure regulator is disclosed having a body, a valve seat dividing a cavity of the body into first and second portions, and an end stop movable against a bias to selectively engage the valve seat and isolate the first and second portions. The pressure regulator may also have a first inlet port in the first portion, a first outlet port in the second portion and in fluid communication with the first portion via the valve seat, and a second inlet port in the second portion. The fuel system may also have a valve element in the second portion and movable against a spring bias based on a pressure difference between an open position and a restricted position against the end stop. The fuel system may additionally have an actuator biased to urge the valve element toward the second position and selectively actuated to move away from the valve element.
Abstract translation: 公开了一种压力调节器，其具有主体，阀体将主体的空腔分成第一和第二部分，以及端部止动件，其可抵抗偏压移动，以选择性地接合阀座并隔离第一和第二部分。 压力调节器还可以具有第一部分中的第一入口端口，第二部分中的第一出口端口，并且经由阀座部与第一部分流体连通，以及第二部分中的第二入口端口。 燃料系统还可以在第二部分中具有阀元件，并且可基于相对于端部止挡件的打开位置和限制位置之间的压力差抵抗弹簧偏压运动。 燃料系统可以另外具有偏压的致动器，以将阀元件推向第二位置并且被选择性地致动以远离阀元件移动。
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Patent Agency Ranking
公开(公告)号：US20140130778A1
公开(公告)日：2014-05-15
申请号：US14159831
申请日：2014-01-21
Applicant: Caterpillar Inc.
Inventor： Daniel R. Puckett , Steven T. Grant , Joshua W. Steffen , Benjamin A. Nash
IPC: F02M39/00
CPC classification number: F02M43/00 , F02D19/022 , F02D19/0647 , F02D41/0025 , F02D2200/06 , F02D2250/18 , F02M21/0215 , F02M21/0221 , F02M21/0245 , F02M21/06 , Y02T10/32 , Y02T10/36
Abstract: A method of operating an engine is disclosed. The method includes estimating an operational status of a cryogenic pump selectively driven by the engine. The cryogenic pump is configured to pressurize a liquefied gaseous fuel. The method also includes estimating a power requirement of the cryogenic pump. The method further includes determining whether the engine is operating on a lug curve. Moreover, the method includes providing additional fuel to the engine in order to increase an engine power beyond the lug curve prior to an operation of the cryogenic pump. The increase in engine power is at least equal to the power requirement of the cryogenic pump.
Abstract translation: 公开了一种操作发动机的方法。 该方法包括估计由发动机选择性驱动的低温泵的操作状态。 低温泵构造成对液化的气态燃料加压。 该方法还包括估计低温泵的功率需求。 该方法还包括确定发动机是否在凸耳曲线上操作。 此外，该方法包括向发动机提供额外的燃料，以便在低温泵的操作之前增加引擎功率超过凸耳曲线。 发动机功率的增加至少等于低温泵的功率要求。
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公开(公告)号：US20160305383A1
公开(公告)日：2016-10-20
申请号：US15195075
申请日：2016-06-28
Applicant: Caterpillar Inc.
Inventor： Daniel R. Puckett , Bryan Moore , Michael E. Sattler , Prasanna M. Ballal , Bradley S. Bashore , Kranti K. Nellutla
CPC classification number: F02M47/027 , F02D41/20 , F02D41/3082 , F02D41/3836 , F02D2041/2044 , F02D2041/2051 , F02D2041/2055 , F02D2041/2058 , F02M51/0625 , F02M63/0022 , F02M63/0075
Abstract: 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.
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8.发明申请公开(公告)号：US20140331963A1
公开(公告)日：2014-11-13
申请号：US13889574
申请日：2013-05-08
Applicant: CATERPILLAR, INC.
Inventor： Steven Thomas Grant , Frank Lombardi , Daniel R. Puckett , Cory Brown
IPC: F02D41/00
CPC classification number: F02D41/0025 , F02D19/0605 , F02D19/061 , F02D19/0694 , F02D19/10 , F02D41/0027 , F02D41/10 , F02D41/3845 , F02D2041/3881 , 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. Before and after a rapid fueling increase transient, the liquid and gaseous rail pressures are controlled toward respective pressures based upon engine speed and load. During the transient, the liquid rail pressure is controlled toward an elevated liquid pressure in order to cause a surge in the supply of gaseous fuel to the gaseous fuel common rail to proactively satisfy the increased gaseous fuel injection rate while obviating a substantial pressure deficit in the gaseous fuel common rail.
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。 在快速加油增加瞬态之前和之后，基于发动机转速和负载，液压和气体轨道压力被控制到相应的压力。 在瞬态期间，将液体轨道压力控制到升高的液体压力，以便引起向气体燃料共轨供应气体燃料的浪涌，以主动满足增加的气体燃料喷射速率，同时避免在 气体燃料共轨。
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9.发明申请公开(公告)号：US20140311444A1
公开(公告)日：2014-10-23
申请号：US13866303
申请日：2013-04-19
Applicant: CATERPILLAR, INC.
Inventor： Dana R. Coldren , Steven Thomas Grant , Frank Lombardi , Daniel R. Puckett
IPC: F02D41/00
CPC classification number: F02D41/0025 , F02D19/0605 , F02D19/061 , F02D19/0694 , F02D19/10 , F02D41/0027 , F02D41/3836 , F02D41/3845 , F02D41/403 , F02D2041/3881 , F02D2200/0602
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. Before and after a rapid load loss transient, the liquid and gaseous rail pressures are controlled toward respective pressures based upon engine speed and load. During the transient, the liquid rail pressure is controlled relative to the gas rail pressure in order to maintain the liquid rail pressure greater than the gas pressure during the transient to avoid migration gaseous fuel into the liquid fuel side of the system.
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。 在快速负载损耗瞬变之前和之后，基于发动机转速和负载，将液体和气体轨道压力控制到相应的压力。 在瞬态期间，相对于气体轨道压力控制液体轨道压力，以便在瞬态期间保持液体轨道压力大于气体压力，以避免气态燃料进入系统的液体燃料侧。
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公开(公告)号：US20220163010A1
公开(公告)日：2022-05-26
申请号：US17102524
申请日：2020-11-24
Applicant: Caterpillar Inc.
Inventor： Daniel R. Puckett , Bradley S. Bashore
Abstract: A pump health assessment system and a method for providing a pump health of a pump is disclosed. The method includes: determining that there is an imbalance in the pump; increasing pump flow from the pump; measuring a rail pressure of a fuel rail; determining if the rail pressure is substantially equal to an expected rail pressure profile; and in accordance with a determination that the rail pressure is not substantially equal to the rail pressure profile, outputting an indication of pump damage.
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