公开(公告)号：US12071876B1

公开(公告)日：2024-08-27

申请号：US18225281

申请日：2023-07-24

申请人： Caterpillar Inc.

发明人： Joshua L. Ratts ,  Hrishi Lalit Shah ,  Deepashri Phatak

IPC分类号： F01N11/00 ,  B01D53/94 ,  F01N3/20 ,  F01N13/00

CPC分类号： F01N11/00 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/208 ,  F01N13/008 ,  B01D2251/2067 ,  B01D2257/404 ,  B01D2258/012 ,  F01N2550/02 ,  F01N2900/0601 ,  F01N2900/1402

摘要： An aftertreatment system for an engine on a work machine may include a selective catalytic reduction (SCR) system configured for arrangement downstream of the engine and having a dosing system for dosing the SCR system with treatment fluid. The aftertreatment system may also include a NOxin sensor arranged at or near the inlet of the SCR system, a NOxout sensor arranged at or near the outlet of the SCR system, and an SCR catalyst monitoring module configured to periodically establish a maximum NOx conversion capacity of an SCR catalyst in the SCR system. A method for determining a maximum conversion capacity at a selected number or working hours and/or determining a remaining useful life of the SCR catalyst is also provided.

公开(公告)号：US12071743B2

公开(公告)日：2024-08-27

申请号：US17086126

申请日：2020-10-30

申请人： Caterpillar Inc.

发明人： Jeremy Kushner

IPC分类号： E02F3/42 ,  E02F3/34 ,  E02F3/76 ,  E02F3/84 ,  E02F3/96 ,  E02F9/20 ,  E02F9/22

CPC分类号： E02F3/96 ,  E02F3/3414 ,  E02F3/422 ,  E02F3/7609 ,  E02F3/844 ,  E02F9/2004 ,  E02F9/2025 ,  E02F9/2203

摘要： In some implementations, an implement control system includes an operator control configured for manipulation in one or more motions and a controller. The controller may be configured to, based on a particular motion of the one or more motions, cause actuation of one or more first actuators, configured to selectively raise or lower a first lateral side of a work implement of a machine, and one or more second actuators, configured to selectively raise or lower a second lateral side of the work implement, in tandem. The one or more first actuators and the one or more second actuators may be controlled by independent control systems.

公开(公告)号：US20240282483A1

公开(公告)日：2024-08-22

申请号：US18650509

申请日：2024-04-30

申请人： Caterpillar Inc.

发明人： Igor Strashny

IPC分类号： H01B9/00 ,  B60K1/00 ,  B60K1/04 ,  H01B9/02 ,  H01B9/06

CPC分类号： H01B9/006 ,  B60K1/00 ,  B60K1/04 ,  H01B9/026 ,  H01B9/0661

摘要： A work machine, such as a hauler at a mining site, includes a conductor rod housing concentric metal tubes for receiving electrical power from a contactor sliding on a power rail. A head-end interface of the conductor rod proximate the work machine includes metallic rings spaced apart and extending circumferentially around the head-end interface. Bores pass longitudinally through the head-end interface and into cavities within the conductor rod between the concentric metal tubes. The metallic rings enable the delivery of electrical power radially from the conductor rod for powering the work machine, while the bores enable the delivery of pneumatic power longitudinally into the conductor rod for powering axial movement of the conductor rod.

公开(公告)号：USD1039553S1

公开(公告)日：2024-08-20

申请号：US29847470

申请日：2022-07-25

申请人： Caterpillar Inc.

设计人： Keith R. Folken ,  Jennifer Heine ,  Russell Loring Stott ,  Ramya Gangishetty ,  Patrick Cozad ,  Rajendra Behara ,  Patrick J. Hallander ,  Varun K. Yellichetty ,  Aaron P. Ardner ,  Corey Anderson

摘要： The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front view of a display screen or portion thereof with transitional graphical user interface showing our new design;
FIG. 2 is a front view of second image thereof;
FIG. 3 is a front view of another embodiment of a display screen or portion thereof with transitional graphical user interface; and,
FIG. 4 is a front view of second image thereof.
The peripheral dashed broken lines depict a display screen or portion thereof, and form no part of the claimed design.
The interior broken lines and shaded portions within interior broken lines depict portions of the graphical user interface which form no part of the claimed design.
The appearance of the graphical user interface transitions between the images shown in FIGS. 1-2 and FIGS. 3-4. The process in which one image transitions to another forms no part of the claimed design.

公开(公告)号：US12065992B2

公开(公告)日：2024-08-20

申请号：US18100009

申请日：2023-01-23

申请人： Caterpillar Inc.

发明人： Jaswinder Singh ,  Michael Bardell ,  Yongxian Gu ,  Eric L. Schroeder ,  Patrick J. Seiler

IPC分类号： F02M21/02

CPC分类号： F02M21/0281 ,  F02M21/0206 ,  F02M21/023 ,  F02M21/0278

摘要： A gaseous fuel engine system includes a hydrogen fuel supply, an engine housing having an intake port extending to a cylinder, and an intake runner. The intake runner includes a valve mount attached to a conduit and having a valve mounting face, and a gaseous fuel admission valve is mounted upon the valve mounting face. A hydrogen fuel passage extends from the valve mount through the conduit and is oriented angularly to at least one of a clamping face of the intake runner or the valve mounting face. Related apparatus and methodology is also disclosed.

公开(公告)号：US20240271513A1

公开(公告)日：2024-08-15

申请号：US18168252

申请日：2023-02-13

申请人： Caterpillar Inc.

发明人： Shawn M. DAMM ,  Yuesheng HE ,  Sri Harsha UDDANDA ,  Todd Ryan KABRICH

IPC分类号： E21B43/26

CPC分类号： E21B43/2607 ,  E21B43/26

摘要： 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.

公开(公告)号：USD1039003S1

公开(公告)日：2024-08-13

申请号：US29915370

申请日：2023-10-30

申请人： Caterpillar Inc.

设计人： Andrew W. Young ,  Ezhil Valavan Karunakaran ,  Eric Thomas Sinn ,  Douglas Charles Serrurier

摘要： FIG. 1 is a perspective view of a wing shroud showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines depict portions of the wing shroud which form no part of the claimed design.
The dot-dash broken lines depict boundaries which form no part of the claimed design.

公开(公告)号：USD1037283S1

公开(公告)日：2024-07-30

申请号：US29837632

申请日：2022-05-06

申请人： Caterpillar Inc.

设计人： Meghna Prasad ,  Fu P. Yuet ,  Merritt P. Callaghan ,  Keith R. Folken

摘要： The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front view of an electronic device with graphical user interface showing the claimed design; and,
FIG. 2 is a front view of another embodiment of an electronic device with graphical user interface.
The peripheral dashed broken lines illustrate a display screen or portion thereof, and form no part of the claimed design.

公开(公告)号：US12049801B2

公开(公告)日：2024-07-30

申请号：US17692931

申请日：2022-03-11

申请人： Caterpillar Inc.

发明人： Todd R. Kabrich ,  Andy Publes ,  Casey A. Otten ,  Brandon J. Mabe ,  Perry D. Converse ,  Jason T. Herlehy ,  Joseph C. Bufkin

IPC分类号： E21B34/02 ,  E21B43/26 ,  E21B47/06

CPC分类号： E21B34/025 ,  E21B43/2607 ,  E21B47/06

摘要： A method may include monitoring an operation or a state of one or more subsystems of a hydraulic fracturing system. The hydraulic fracturing system may include one or more fracturing rigs, one or more blending equipment, and one or more power sources electrically connected to a first subset of the one or more fracturing rigs, or one or more fuel sources fluidly connected to a second subset of the one or more fracturing rigs. The hydraulic fracturing system may further include one or more missile valves, one or more zipper piping and zipper valve sets, one or more well head valves, and one or more well heads. The method may further include controlling, based on monitoring the operation or the state, the one or more subsystems within operating limits or based on operating expectations to cause or prevent an occurrence of one or more well integrity-related events.

公开(公告)号：US12049265B2

公开(公告)日：2024-07-30

申请号：US17128504

申请日：2020-12-21

申请人： Caterpillar Inc.

发明人： Roger Lee Recker ,  Mircea Dumitru ,  Zachary T. Donlan

IPC分类号： B62D55/15

CPC分类号： B62D55/15

摘要： A roller assembly for a ground-engaging track system includes a roller forming a shaft bore, and a roller shaft within the shaft bore and having a circumferential ramp surface. A roller retention system for the roller assembly includes a roller retention collar with an outer peripheral surface, and an inner peripheral surface that may include a wedge surface structured to friction fit the retention collar, within a collar bore in the roller, upon the circumferential ramp surface to limit axial displacement of the roller upon the roller shaft. The roller assembly may include two roller retention collars supporting the roller against axial displacement without use of thrust washers or the like, and fixing the roller and roller shaft to rotate together relative to a track roller frame.