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公开(公告)号：US20190128203A1
公开(公告)日：2019-05-02
申请号：US15796124
申请日：2017-10-27
Applicant: General Electric Company
Inventor： Amit Shrivastava , Chandan Kumar , Pavan Chakravarthy Nandigama
Abstract: A system includes a reciprocating engine having a piston disposed in a cylinder, an intake valve, an exhaust valve, and an exhaust flow path downstream of the exhaust valve. The system also includes a first sensor configured to obtain a first feedback indicative of an exhaust gas parameter in the exhaust flow path. The system also includes a controller configured to identify a valve wear condition of at least one of the intake valve or the exhaust valve at least partially based on the first feedback from the first sensor.
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公开(公告)号：US20170175661A1
公开(公告)日：2017-06-22
申请号：US14977226
申请日：2015-12-21
Applicant: General Electric Company
Inventor： Chandan Kumar , Pavan Chakravarthy Nandigama , Amit Shrivastava , Jeffrey Jacob Bizub
Abstract: A control system includes a first and second sensor configured to monitor a first type of operating condition of a first and second cylinder of an engine, respectively, a feedback component configured to monitor a second type of operating condition of the engine, and a controller communicatively coupled with the first and second sensors and feedback component. The controller is configured to receive a first measurement of the first type of operating condition from the first sensor, a second measurement of the first type of operating condition from the second sensor, and a third measurement of the second type of operating condition from the feedback component, to analyze the first and second measurements to detect a change in operating peak firing pressure in the first cylinder and/or in the second cylinder, and to analyze the third measurement to diagnose a cause of the change.
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公开(公告)号：US10077730B2
公开(公告)日：2018-09-18
申请号：US14985899
申请日：2015-12-31
Applicant: General Electric Company
CPC classification number: F02D41/1446 , F02B19/1095 , F02B77/085 , F02D35/023 , F02D35/027 , F02D41/042 , F02D41/221 , F02D2200/1002 , F02P2017/121 , Y02T10/125
Abstract: The present disclosure includes systems and methods for monitoring a prechamber of an engine. In one embodiment, a system includes a combustion engine having a combustion chamber and a prechamber, where the prechamber is configured to direct a flame toward the combustion chamber, a fuel supply valve configured to adjust a flow of a fuel toward the prechamber, a prechamber valve configured to receive the fuel into the prechamber, a knock sensor coupled to the combustion engine, and a controller. The controller is configured to control operations of the combustion engine, to receive a signal from the knock sensor, to determine a combustion parameter based at least on the signal, to determine a condition of one or both of the prechamber and the prechamber valve based at least on the combustion parameter, and to adjust the fuel supply valve based at least on the condition.
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Patent Agency Ranking
4.发明申请公开(公告)号：US20150214458A1
公开(公告)日：2015-07-30
申请号：US14164464
申请日：2014-01-27
Applicant: General Electric Company
Inventor： Pavan Chakravarthy Nandigama , Amit Shrivastava
CPC classification number: H01L35/30 , F02B29/0406 , F02B29/0443 , F02B29/0481 , Y02T10/146 , Y02T10/166
Abstract: A thermoelectric generator system for use between gases from a compressor stage of a turbocharger and a heat transfer fluid of an intercooler that treats the gases. In one version, the system may include a first terminal in thermal contact with gases from the compressor stage of the turbocharger to be treated by the intercooler; a second terminal in thermal contact with a heat transfer fluid for use in the intercooler; and a thermoelectric material between the first terminal and the second terminal, the thermoelectric generator converting a temperature difference between the gases and the heat transfer fluid to an electric current. A controller may be provided for controlling a current flow transmitted from the thermoelectric material to a load. A related intercooler system and engine system are also provided.
Abstract translation: 一种用于来自涡轮增压器的压缩机级的气体与处理气体的中间冷却器的传热流体之间的热电发电机系统。 在一个版本中，系统可以包括与要由中间冷却器处理的涡轮增压器的压缩机级的气体热接触的第一端子; 与用于中间冷却器的传热流体热接触的第二端子; 以及在所述第一端子和所述第二端子之间的热电材料，所述热电发电机将所述气体和所述传热流体之间的温度差转换为电流。 可以提供控制器来控制从热电材料传递到负载的电流。 还提供了相关的中冷器系统和发动机系统。
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公开(公告)号：US10288003B1
公开(公告)日：2019-05-14
申请号：US15796124
申请日：2017-10-27
Applicant: General Electric Company
Inventor： Amit Shrivastava , Chandan Kumar , Pavan Chakravarthy Nandigama
Abstract: A system includes a reciprocating engine having a piston disposed in a cylinder, an intake valve, an exhaust valve, and an exhaust flow path downstream of the exhaust valve. The system also includes a first sensor configured to obtain a first feedback indicative of an exhaust gas parameter in the exhaust flow path. The system also includes a controller configured to identify a valve wear condition of at least one of the intake valve or the exhaust valve at least partially based on the first feedback from the first sensor.
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公开(公告)号：US20170191439A1
公开(公告)日：2017-07-06
申请号：US14985899
申请日：2015-12-31
Applicant: General Electric Company
CPC classification number: F02D41/1446 , F02B19/1095 , F02B77/085 , F02D35/023 , F02D35/027 , F02D41/042 , F02D41/221 , F02D2200/1002 , F02P2017/121 , Y02T10/125
Abstract: The present disclosure includes systems and methods for monitoring a prechamber of an engine. In one embodiment, a system includes a combustion engine having a combustion chamber and a prechamber, where the prechamber is configured to direct a flame toward the combustion chamber, a fuel supply valve configured to adjust a flow of a fuel toward the prechamber, a prechamber valve configured to receive the fuel into the prechamber, a knock sensor coupled to the combustion engine, and a controller. The controller is configured to control operations of the combustion engine, to receive a signal from the knock sensor, to determine a combustion parameter based at least on the signal, to determine a condition of one or both of the prechamber and the prechamber valve based at least on the combustion parameter, and to adjust the fuel supply valve based at least on the condition.
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7.发明申请公开(公告)号：US20170074157A1
公开(公告)日：2017-03-16
申请号：US14855934
申请日：2015-09-16
Applicant: General Electric Company
Inventor： Shivraj Subhash Mitkari , Sujith Mohan , Pavan Chakravarthy Nandigama , Amit Shrivastava , Rajesh Katta , Kothamasu Venkata Krishna Chaitanya
CPC classification number: F02B37/005 , H01L35/30 , H02N10/00 , Y02T10/144 , Y02T10/166
Abstract: A system includes a turbocharger, a wastegate, and one or more thermoelectric generators. The turbocharger includes a turbine and a compressor, and is configured to be coupled to an internal combustion engine. The wastegate is coupled to the turbine, and is disposed within a wastegate enclosure. The one or more thermoelectric generators generate energy from engine exhaust flowing through the wastegate. Each of the thermoelectric generators comprising includes a hot side coupled to the wastegate enclosure, a cold side coupled to a coolant supply, and one or more thermoelectric materials disposed between the hot side and the cold side.
Abstract translation: 一种系统包括涡轮增压器，废气门和一个或多个热电发电机。 涡轮增压器包括涡轮机和压缩机，并且构造成联接到内燃机。 废气门联接到涡轮机，并且设置在废气门外壳内。 一个或多个热电发电机从流过废气门的发动机排气产生能量。 包括的每个热电发电机包括连接到废气门外壳的热侧，联接到冷却剂供应的冷侧和设置在热侧和冷侧之间的一个或多个热电材料。
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8.发明申请SYSTEM AND METHOD FOR DETECTION OF CHANGES TO COMPRESSION RATIO AND PEAK FIRING PRESSURE OF AN ENGINE 审中-公开用于检测发动机的压缩比和峰值压力变化的系统和方法公开(公告)号：US20170003190A1
公开(公告)日：2017-01-05
申请号：US14790785
申请日：2015-07-02
Applicant: General Electric Company
Inventor： Pavan Chakravarthy Nandigama , Sujith Mohan , Amit Shrivastava , Chandan Kumar , Jeffrey Jacob Bizub
CPC classification number: G01L23/221 , F02B1/12 , F02D35/023 , F02D35/024 , F02D35/027 , F02D35/028 , F02D41/22 , F02D2200/025 , G01M15/12
Abstract: A system includes a cylinder, a piston, a sensor configured to detect vibrations of the cylinder, piston, or both that correspond with varying pressures within the cylinder, and a controller coupled to the sensor. The controller is configured to receive a first signal from the sensor corresponding with first vibrations of the cylinder and to deduce from the first signal a first operating value of a parameter indicative of peak firing pressure at a first time, to compare the first operating value with a baseline value of the parameter indicative of peak firing pressure to detect a change in peak firing pressure, to receive a second signal from the sensor corresponding with second vibrations of the cylinder and to deduce from the second signal a second operating value of the parameter indicative of peak firing pressure at a second time, and to compare the second operating value with the baseline value to confirm the change in peak firing pressure.
Abstract translation: 系统包括气缸，活塞，被配置为检测气缸，活塞或与气缸内的变化压力对应的二者的振动的传感器，以及耦合到传感器的控制器。 所述控制器被配置为从所述传感器接收对应于所述气缸的第一振动的第一信号，并且从所述第一信号推断出在第一时间指示峰值点火压力的参数的第一操作值，以将所述第一操作值与 指示峰值点火压力的参数的基准值，以检测峰值点火压力的变化，以接收来自对应于气缸的第二振动的传感器的第二信号，并从第二信号推断出参数的第二操作值 并且将第二操作值与基准值进行比较，以确定峰值点火压力的变化。
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