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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：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：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：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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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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Patent Agency Ranking
公开(公告)号：US20200256713A1
公开(公告)日：2020-08-13
申请号：US16274754
申请日：2019-02-13
Applicant: Caterpillar Inc.
Inventor： Todd Ryan Kabrich
Abstract: A system for shutting-off fluid flow and measuring fluid flow rate may include a housing defining an inlet, a valve body chamber, and an outlet opposite the inlet. The system may also include a valve body at least partially received in the valve body chamber, and an actuator coupled to the valve body and configured to reposition and/or re-orient the valve body. The system may also include at least one pressure sensor configured to generate a pressure differential signal indicative of a pressure difference between pressure at the inlet and the outlet, and a controller configured to receive a valve body signal indicative of a valve body position and/or orientation and the pressure differential signal, and determine a flow rate of fluid flowing through the housing based at least in part on the valve body signal and/or the pressure differential signal.
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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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公开(公告)号：US12104587B2
公开(公告)日：2024-10-01
申请号：US17649531
申请日：2022-01-31
Applicant: Caterpillar Inc.
Inventor： Andy Publes , Mark C. Paul , Mark Francis Grimes , Todd Ryan Kabrich , Riadh Benguedda
CPC classification number: F04B49/06 , E21B43/2607 , F04B51/00
Abstract: In some implementations, a controller may obtain a setting for a target discharge pressure associated with a fluid pump driven by a motor that is controlled by a variable frequency drive (VFD). The target discharge pressure may be for use in a pressure test of a system that includes the fluid pump. The controller may determine a target torque for the motor that achieves the target discharge pressure. The controller may cause, via the VFD and in connection with the pressure test, adjustment to a speed of the motor to achieve the target torque for the motor.
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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：US20240167470A1
公开(公告)日：2024-05-23
申请号：US18422047
申请日：2024-01-25
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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