Oil Level Sensing and Fault Detection
    3.
    发明公开

    公开(公告)号:US20230375393A1

    公开(公告)日:2023-11-23

    申请号:US18315361

    申请日:2023-05-10

    IPC分类号: G01F23/72 H01H36/02 F01M11/12

    CPC分类号: G01F23/72 H01H36/02 F01M11/12

    摘要: An oil level measurement system for an aircraft engine includes a magnetic float disposed in the aircraft engine, a first sensor ladder configured for sensing a position of the magnetic float, and a second sensor ladder configured for sensing a position of the magnetic float. A controller is configured to determine an oil level of an engine based on an engine status signal, a first signal from the first sensor ladder, and a second signal from the second sensor ladder. An oil level sensing method for measuring an oil level within an aircraft engine when the aircraft engine is off includes comparing a first signal from a first sensor ladder with a second signal from a second sensor ladder, indicating a fault when the first signal is different from the second signal, and determining an oil level of an aircraft engine when the first signal matches the second signal.

    Oil leakage monitoring system
    4.
    发明授权

    公开(公告)号:US11698025B2

    公开(公告)日:2023-07-11

    申请号:US17175174

    申请日:2021-02-12

    IPC分类号: F02C7/06 F01M11/12 F01M11/00

    摘要: A method of monitoring a sealing component of a gas turbine engine, comprising: collecting oil leaked from the component; detecting a volume of the collected oil upstream of an oil return path of the gas turbine engine; and signalling for inspection of the component when the volume of the collected oil exceeds a threshold volume. Also disclosed is an oil leakage monitoring system for a gas turbine engine, comprising: one or more sealing components to be lubricated by oil; a valve downstream of the one or more components and fluidly connected to an oil system; a reservoir downstream of the one or more components to collect oil, the reservoir upstream of the valve; and a volume measurement device configured to detect the oil collected in the reservoir, and to signal for inspection of the one or more components when the oil collected in the reservoir exceeds a threshold volume.

    HARVESTING HEADERS HAVING AN OIL LEVEL INDICATOR, AND RELATED AGRICULTURAL VEHICLES AND METHODS

    公开(公告)号:US20220377983A1

    公开(公告)日:2022-12-01

    申请号:US17755799

    申请日:2020-06-08

    申请人: AGCO Corporation

    IPC分类号: A01D69/12 F01M11/12

    摘要: A harvesting header includes a header frame, rotary cutters carried by the header frame, a gearbox containing at least one gear coupled to each rotary cutter, and an electronic sensor to indicate an amount of oil in the gearbox. Each rotary cutter has a rotating disc with at least one blade for cutting crops. An agricultural vehicle includes a vehicle frame, at least one attached to the vehicle frame, and a harvesting header coupled to the vehicle frame by a plurality of hydraulic cylinders. A method of operating an agricultural vehicle includes adjusting at least one hydraulic cylinder to move a header frame to a known orientation, sensing a position of an oil surface in a gearbox, and determining or indicating an amount of oil in the gearbox based at least in part on the position of the oil surface.

    Oil quantity measurement apparatus and method

    公开(公告)号:US11422021B2

    公开(公告)日:2022-08-23

    申请号:US16694158

    申请日:2019-11-25

    摘要: An apparatus and method of determining the level of a liquid in a reservoir having curved surfaces is described, where the measuring device comprises a support having a radius of curvature conformable to the curvature of the reservoir. A float assembly is captivated to the support so that it may move freely in the vertical direction, but is constrained in rotation with respect to the support by compatible asymmetrical structural features. The float assembly includes an element that can be sensed by a sensor assembly that is positioned along the support over the length of the support encompassing the range of fluid levels to be measured.

    Work machine, control method thereof, and supply system

    公开(公告)号:US11421566B2

    公开(公告)日:2022-08-23

    申请号:US17326900

    申请日:2021-05-21

    IPC分类号: F01M11/06 F01M11/12

    摘要: There is provided a work machine. A reserving chamber reserves lubricating oil to be supplied to an engine. A channel forming member forms a channel of the lubricating oil from the reserving chamber to the engine A press-feed unit press-feeds the lubricating oil reserved in the reserving chamber to the engine via the channel forming member. A float floats on an oil surface of the lubricating oil reserved in the reserving chamber A detection unit provided in the reserving chamber and detects the float A determination unit determines a tilt state of the reserving chamber based on a detection result of the detection unit A control unit controls the press-feed unit based on a determination result of the determination unit.

    METHOD AND SYSTEM FOR CHECKING AN OIL LEVEL IN A MARINE DRIVE UNIT

    公开(公告)号:US20220251984A1

    公开(公告)日:2022-08-11

    申请号:US17649735

    申请日:2022-02-02

    IPC分类号: F01M11/12 G01F23/00

    摘要: A method for checking the oil level in a marine drive unit, where the drive unit is provided with an external oil filter, an oil level sensor adapted to determine an oil level in the drive unit, and an electronically controlled tilt means, comprising the steps of, initiating an oil level check, controlling the tilt means to tilt the drive unit to a plurality of different tilt angle positions, for each tilt angle position, determining if the oil level sensor detects the oil level in the drive unit, for each tilt angle position, registering the tilt angle of the drive unit and the signal from the oil level sensor, determining at which tilt angles the sensor detects the oil level, and in dependence of the determined tilt angle of the drive unit, determining if the oil level of the drive unit is within a predefined range.

    Oil level indicator tube
    10.
    发明授权

    公开(公告)号:US11339694B1

    公开(公告)日:2022-05-24

    申请号:US17150190

    申请日:2021-01-15

    IPC分类号: F01M11/12 F01M11/00 G01F23/04

    摘要: An automotive engine structural component includes an oil sump formed within the engine structural component, a bore extending from an exterior surface of the engine structural component to the oil sump, an oil level indicator tube supported within the bore, the oil level indicator tube including an upper bead, a lower bead, an o-ring positioned on the oil level indicator tube between the upper and lower beads, the o-ring forming a radial seal between the oil level indicator tube and an interior surface of the bore, and a spacer clip positioned between the upper bead and the o-ring.