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公开(公告)号：US12264667B2
公开(公告)日：2025-04-01
申请号：US17649521
申请日：2022-01-31
Applicant: Caterpillar Inc.
Inventor： Todd Ryan Kabrich , Andy Publes , Mark Francis Grimes , Yuesheng He
Abstract: In some implementations, a controller may monitor, during a ramp up period of a fluid pump driven by a motor that is controlled by a variable frequency drive (VFD), an intake pressure of the fluid pump and a discharge pressure of the fluid pump. The controller may detect, based on monitoring the intake pressure and the discharge pressure, whether the intake pressure satisfies an intake pressure threshold or the discharge pressure satisfies a discharge pressure threshold. The controller may cause, via the VFD, reduction of a torque of the motor based on the intake pressure satisfying the intake pressure threshold or the discharge pressure satisfying the discharge pressure threshold.
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公开(公告)号：US12024962B1
公开(公告)日：2024-07-02
申请号：US18168258
申请日：2023-02-13
Applicant: Caterpillar Inc.
Inventor： Shawn M. Damm , Yuesheng He , Sri Harsha Uddanda , Todd Ryan Kabrich , Kyle McElmury
CPC classification number: E21B21/08 , E21B21/10 , E21B43/26 , E21B43/2607
Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump, via a first portion of the recirculation circuit, to an inlet of the fluid pump via a second portion of the recirculation circuit. The control system may include a control valve and a choke valve in the recirculation circuit. The control system may include a controller configured to identify, based on a differential pressure that is based on a first pressure of the fluid in the first portion and a second pressure of the fluid in the second portion while the control valve is closed, a position for the choke valve that is to result in a flow velocity of the fluid through the control valve that is below a threshold, and configured to cause actuation of the choke valve in accordance with the position.
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公开(公告)号：US12180980B2
公开(公告)日：2024-12-31
申请号：US17819778
申请日：2022-08-15
Applicant: Caterpillar Inc.
Inventor： Yuesheng He , Andy Publes , Mark C. Paul , Mark Francis Grimes
IPC: F04D29/66
Abstract: In some implementations, a controller may monitor, in connection with a fluid pump driven by a motor that is controlled by a variable frequency drive and over a time period, a torque of the motor to obtain torque data, a speed of the motor to obtain speed data, and a pressure of the fluid pump to obtain pressure data. The controller may determine that the fluid pump is associated with a leak of a particular severity level based on the torque data indicating a deviation that satisfies a first threshold, the speed data indicating a deviation that satisfies a second threshold, and the pressure data indicating a deviation that satisfies a third threshold. The controller may perform at least one operation based on the particular severity level of the leak.
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公开(公告)号：US11898551B2
公开(公告)日：2024-02-13
申请号：US17724351
申请日：2022-04-19
Applicant: Caterpillar Inc.
Inventor： Yuesheng He , Todd Ryan Kabrich , Casey Alan Otten
CPC classification number: F04B49/22 , F04B47/00 , F04B49/103 , F04B2203/0605 , F04B2207/01
Abstract: An example system includes a fluid end having a block, a fluid inlet formed in the block, and a fluid outlet formed in the block. The system also includes an intake manifold fluidly coupled to the fluid inlet, and a fluid conduit fluidly coupled to the fluid outlet and the intake manifold. The system further includes a valve fluidly coupled to the fluid conduit, the valve configured to control fluid flow through the fluid conduit, an actuator coupled to the valve and configured to position the valve in an open position or a closed position, and a controller communicatively coupled to the actuator and configured to send one or more signals to the actuator, causing the actuator to position the valve in the open position or the closed position.
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公开(公告)号：US12116876B2
公开(公告)日：2024-10-15
申请号：US18168255
申请日：2023-02-13
Applicant: Caterpillar Inc.
Inventor： Shawn M. Damm , Yuesheng He , Sri Harsha Uddanda , Todd Ryan Kabrich
IPC: E21B43/267 , E21B43/26
CPC classification number: E21B43/2607 , E21B43/267
Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump of a hydraulic fracturing system to an inlet of the fluid pump. The control system may include a control valve in the recirculation circuit. The control system may include a controller configured to cause opening of the control valve to cause the fluid to flow through the recirculation circuit at a first time when proppant is being added to the fluid. The controller may be configured to cause, after closing of the control valve and at a second time when the proppant is no longer being added to the fluid, re-opening of the control valve to cause the fluid to flow through the recirculation circuit to flush the recirculation circuit of the proppant.
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Patent Agency Ranking
公开(公告)号：US12000255B1
公开(公告)日：2024-06-04
申请号：US18168248
申请日：2023-02-13
Applicant: Caterpillar Inc.
Inventor： Shawn M. Damm , Yuesheng He , Sri Harsha Uddanda , Todd Ryan Kabrich
CPC classification number: E21B43/2607 , E21B34/025
Abstract: A control system may include a fluid conduit configured to direct fluid discharged from a fluid pump. The control system may include a shutoff valve and a throttling valve in the fluid conduit. The control system may include a controller configured to cause, while the shutoff valve is closed, actuation of the throttling valve to an open position. The controller may be configured to obtain first information indicating a first pressure of the fluid in the fluid conduit at a first side of the throttling valve between the throttling valve and the shutoff valve and second information indicating a second pressure of the fluid in the fluid conduit at a second side of the throttling valve. The controller may be configured to transmit a signal to indicate that the shutoff valve has a leak based on the first pressure being different from the second pressure.
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公开(公告)号：US11808225B1
公开(公告)日：2023-11-07
申请号：US17929142
申请日：2022-09-01
Applicant: Caterpillar Inc.
Inventor： Yuesheng He , Todd Ryan Kabrich
IPC: F02D41/02 , F02D29/06 , F02D29/04 , B60W30/09 , B60W10/30 , F02D41/00 , F01P5/02 , F01M1/02 , B60W30/19
CPC classification number: F02D41/023 , B60W10/30 , B60W30/19 , F01M1/02 , F01P5/02 , F02D29/04 , F02D29/06 , F02D41/0027
Abstract: In some implementations, a controller may determine, in connection with a constant speed operation of an engine operable by spark ignition of a gaseous fuel, that a transient event associated with the engine is to occur, the transient event to cause a shift from a first gear to a second gear of a transmission coupled to the engine, where the shift from the first gear to the second gear is to increase a primary load associated with the engine. The controller may cause, prior to the shift from the first gear to the second gear, increasing of an auxiliary load associated with the engine. The controller may cause, during the shift from the first gear to the second gear, decreasing of the auxiliary load.
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公开(公告)号：US12091954B2
公开(公告)日：2024-09-17
申请号：US18168252
申请日：2023-02-13
Applicant: Caterpillar Inc.
Inventor： Shawn M. Damm , Yuesheng He , Sri Harsha Uddanda , Todd Ryan Kabrich
IPC: E21B43/26
CPC classification number: E21B43/2607 , E21B43/26
Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump of a hydraulic fracturing system to an inlet of the fluid pump. The control system may include a control valve in the recirculation circuit. The control system may include a choke valve in the recirculation circuit. The control system may include a controller configured to cause opening of the control valve to cause the fluid to flow through the recirculation circuit, and cause, based on a pressure of the fluid flowing through the recirculation circuit downstream of the control valve and the choke valve, actuation of the choke valve to maintain the pressure of the fluid below a threshold.
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公开(公告)号：US11808139B2
公开(公告)日：2023-11-07
申请号：US17580849
申请日：2022-01-21
Applicant: Caterpillar Inc.
Inventor： Todd R. Kabrich , Casey A. Otten , Yuesheng He
CPC classification number: E21B47/06 , E21B43/26 , F04B49/08 , F05D2270/09 , F05D2270/3013
Abstract: A method may include monitoring, by a controller, operation of a pump of at least one hydraulic fracturing rig during ramp-up of the pump. Each of the at least one hydraulic fracturing rig may further include an engine and a transmission. The method may further include detecting, by the controller, an issue in the operation of the pump based on the monitoring of the operation and performing an action based on the detecting of the issue.
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公开(公告)号：US20230332592A1
公开(公告)日：2023-10-19
申请号：US17724351
申请日：2022-04-19
Applicant: Caterpillar Inc.
Inventor： Yuesheng He , Todd Ryan Kabrich , Casey Alan Otten
CPC classification number: F04B49/22 , F04B49/103 , F04B47/00 , F04B2203/0605 , F04B2207/01
Abstract: An example system includes a fluid end having a block, a fluid inlet formed in the block, and a fluid outlet formed in the block. The system also includes an intake manifold fluidly coupled to the fluid inlet, and a fluid conduit fluidly coupled to the fluid outlet and the intake manifold. The system further includes a valve fluidly coupled to the fluid conduit, the valve configured to control fluid flow through the fluid conduit, an actuator coupled to the valve and configured to position the valve in an open position or a closed position, and a controller communicatively coupled to the actuator and configured to send one or more signals to the actuator, causing the actuator to position the valve in the open position or the closed position.
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