Dual fuel operating strategy for engine based on expected in-cylinder temperature progression

    公开(公告)号:US12215639B1

    公开(公告)日:2025-02-04

    申请号:US18513760

    申请日:2023-11-20

    Abstract: Operating an engine system includes calculating a crank angle timing term corresponding to an in-cylinder temperature sufficient for autoignition of a first fuel injected at a first injection location. Operating an engine system further includes calculating, based on the crank angle timing term, at least one of an injection amount or an injection duration, to increase the in-cylinder temperature sufficiently via burning of the first fuel to ignite a second fuel injected into a mixture of the first fuel and pressurized intake air. The first fuel may include a blend of dimethyl ether (DME), methanol (MeOH), and water. Based on expected progression of in-cylinder temperatures, and fuel injection amount and/or duration based thereon, desirable controllability of combustion phasing and/or other combustion properties may be realized.

    STRUCTURED REPRESENTATIONS WITH TEMPORAL RELEVANCE LEVELS FOR DATA FIELDS

    公开(公告)号:US20250037079A1

    公开(公告)日:2025-01-30

    申请号:US18360644

    申请日:2023-07-27

    Abstract: This disclosure provides techniques for assessing projects based on their project fields and evaluating their progress. In accordance with the techniques described herein, an example system may use project schemas that include various project fields, such as precondition, success criterion, in-scope, and out-of-scope fields, to define requirements-related concepts associated with the projects. These project fields may be characterized by their relevance levels, maturity levels, and description data. The system employs assessment measures that consider the relevance level and maturity level of the project fields to determine the project's assessment report.

    Systems and methods for determining thickness and/or diameter using computer vision

    公开(公告)号:US12210330B2

    公开(公告)日:2025-01-28

    申请号:US17827418

    申请日:2022-05-27

    Abstract: Systems and methods for determining a dimension of a component are disclosed. The method includes receiving one or more images, one or more videos, or a combination thereof of a caliper having a plurality of markers. The one or more images, the one or more videos, or a combination thereof are captured by one or more image sensors of a mobile device. The plurality of markers includes a respective marker on each of a first measuring arm, a second measuring arm, and a pivot point of the caliper. A processing, via one or more processors, of the one or more images, the one or more videos, or a combination thereof of the caliper with the plurality of markers to determine locations of the plurality of markers. A processing, via the one or more processors, of the locations of the plurality of markers to determine a distance between a first tip of the first measuring arm and a second tip of the second measuring arm.

    Hydraulic cylinder sealing arrangement

    公开(公告)号:US12209667B2

    公开(公告)日:2025-01-28

    申请号:US17740569

    申请日:2022-05-10

    Abstract: A combination of seals and wear guides for use in a hydraulic cylinder provides a sealed engagement between a piston rod of the hydraulic cylinder and an inner circumferential surface of a rod end of a cylinder barrel of the hydraulic cylinder through which the piston rod is axially movable. The combination includes a cylindrical metallic wear guide for seating within a first annular groove formed around the inner circumferential surface, a buffer seal assembly including an annular buffer seal cooperatively mated with an annular backup ring for seating within a second annular groove, a U-cup seal for seating within a third annular groove, a cylindrical plastic wear guide for seating within a fourth annular groove, and a triple lip wiper seal including three ringed lip portions for seating within a fifth annular groove.

    Controlling machine operation based on validation of machine data

    公开(公告)号:US12209391B2

    公开(公告)日:2025-01-28

    申请号:US17646498

    申请日:2021-12-30

    Abstract: A device may receive machine data indicating a pose of one or more components of a machine. The machine data may be generated based on first data from one or more first sensor devices associated with the machine. The device may generate validation data to validate the machine data. The validation data may be generated based on second data from a second set of sensor devices. The device may perform a comparison of the machine data and the validation data and determine, based the comparison, whether the machine data is validated or not validated. The device may selectively control an operation of the machine based on the machine data. Based on determining that the machine data is validated, the operation may be controlled based on the machine data. The operation may be controlled without the machine data based on determining that the machine data is not validated.

    Front axle for mining machines
    47.
    发明授权

    公开(公告)号:US12208645B2

    公开(公告)日:2025-01-28

    申请号:US17657372

    申请日:2022-03-31

    Abstract: An axle, for a mining machine, includes one or more segments, each defining a first wall portion, a second wall portion disposed opposite to the first wall portion, a third wall portion, and a fourth wall portion. The third wall portion extends between the first and the second wall portions to meet the first wall portion at a first corner portion and the second wall portion at a second corner portion. The fourth wall portion extends between the first and the second wall portions to meet the first wall portion at a third corner portion and the second wall portion at a fourth corner portion. The second thickness of the second corner portion and the third thickness of the third corner portion are greater than each of the first thickness of the first corner portion and the fourth thickness of the fourth corner portion.

    TOOL RETENTION SYSTEM WITH EXTERNAL LOCKING MECHANSIM

    公开(公告)号:US20250027298A1

    公开(公告)日:2025-01-23

    申请号:US18356277

    申请日:2023-07-21

    Abstract: A retention mechanism may have a pin inserted into a retainer pin opening in the adapter. The retention mechanism may also have a spring clip inserted into the tip through a first end of a transverse hole in the tip, and a retainer inserted through a second end of the transverse hole. The retainer may have a retainer body extending from a first axial end to a second axial end. The retainer may have at least one tab extending radially from the retainer body at the first axial end. The at least one tab may engage with a female thread in the transverse hole. The retainer may have at least one detent cutout disposed on an outer surface of the retainer body for receiving a portion of the spring clip. The retainer may also have an axial cavity at the second axial end for receiving one end of the pin.

    Load Based Tracking Assist
    49.
    发明申请

    公开(公告)号:US20250027292A1

    公开(公告)日:2025-01-23

    申请号:US18355613

    申请日:2023-07-20

    Abstract: A system for reverting an actual heading of a mobile construction equipment subject to load from one or more work implements to a desired heading, the mobile construction equipment having a front frame articulatable with respect to a rear frame, the front frame including a steering apparatus, the system including: a rear inertial motion unit disposed on the rear frame, the rear inertial motion unit for providing an actual rear frame yaw rate; a steering sensor for providing an actual steering angle of the steering apparatus; an articulation sensor for providing an actual articulation angle between the front frame and the rear frame; and a controller for: receiving the actual rear frame yaw rate, the actual steering angle, and the actual articulation angle to determine the actual heading, receiving a steering control indicating a desired steering angle of the steering apparatus and an articulation control indicating a desired articulation angle.

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