SOLAR POWER GENERATOR HAVING VARIABLE SHAPE
    3.
    发明公开

    公开(公告)号:US20230238915A1

    公开(公告)日:2023-07-27

    申请号:US18098507

    申请日:2023-01-18

    Inventor: Hyeung Sik CHOI

    CPC classification number: H02S20/32 H02S30/10 B60L8/003 H02S30/20

    Abstract: There is provided a solar power generator having a variable shape which can secure a maximum solar power generation area by being unfolded horizontally and upward in the case of performing solar power generation and can be transformed to have a minimum volume by being transformed into a box shape in the case of not performing solar power generation. The solar power generator includes a base frame, four solar panel members for forming a box which are respectively coupled to four sides of the base frame, a rotation drive source for rotating each of the four solar panel members, a tube member, a lower surface of which is fixed to a center portion of an upper surface of the base frame, an air injection and discharge part, a top plate for the tube member, and a plurality of solar panel assemblies for tube member sidewalls.

    LOAD AREA TRACKING TYPE SHIP BATTERY MANAGEMENT SYSTEM

    公开(公告)号:US20230166819A1

    公开(公告)日:2023-06-01

    申请号:US17956782

    申请日:2022-09-29

    Inventor: Jin Seok Oh

    Abstract: A load area tracking type ship battery management system is proposed. The ship battery management system includes a calculation unit for generating SFOC curve data periodically by calculating specific fuel oil consumption (SFOC) versus ship load factors, a LF setting unit for specifying a ship load factor point as a light load factor (LF) point in the SFOC curve data, a HF setting unit for specifying a ship load factor point as a heavy load factor (HF) point, a Emax setting unit configured to obtain a highest point (Emax) of generator efficiency, a Rmin setting unit for calculating battery charging efficiency in the LF to obtain a smallest load factor point (Rmin) bearing a generator load by battery charging, and a Rmax setting unit for calculating battery charging efficiency in the HF to obtain a highest load factor point (Rmax) bearing the generator load by battery discharging.

    MANUFACTURING METHOD FOR LIGHTWEIGHT PARTS COMBINING POROUS METAL SUBSTRATE AND FUNCTIONAL RESIN

    公开(公告)号:US20240269918A1

    公开(公告)日:2024-08-15

    申请号:US18437016

    申请日:2024-02-08

    Inventor: Do Sik SHIM

    CPC classification number: B29C64/118 B33Y10/00 B29K2705/00 B29K2715/003

    Abstract: A method for manufacturing a lightweight part including a porous metal matrix having a functional resin bonded thereto is disclosed. The method includes a porous metal matrix preparation step of preparing a porous metal matrix; a base layer deposition step in which while a nozzle of a FDM (Fused Deposition Modeling) 3D printer moves along a first predetermined movement coordinate path, the nozzle heats and extrudes a resin filament toward a surface of the porous metal matrix to infiltrate a molten resin into closed pores or depressions in the surface of the porous metal matrix, thereby forming a base layer bonded to the surface of the porous metal matrix; and a build layer deposition step in which while the nozzle moves along the first set movement coordinate path or a predetermined second set movement coordinate path different from the first set movement coordinate path, the nozzle heats and extrudes the resin filament toward the base layer such that one or more flat or curved build layers are deposited on the base layer, wherein the resin filament is made of a functional resin material.

    METHOD OF MANUFACTURING NITROGEN-CARBON AGGREGATE HAVING HIERARCHICAL PORE STRUCTURE, NITROGEN-CARBON AGGREGATE MANUFACTURED THEREFROM, AND SODIUM ION BATTERY INCLUDING SAME

    公开(公告)号:US20210305570A1

    公开(公告)日:2021-09-30

    申请号:US16893693

    申请日:2020-06-05

    Abstract: The present invention relates to a method of manufacturing a nitrogen-carbon aggregate having a hierarchical pore structure, a nitrogen-carbon aggregate manufactured therefrom, and a sodium ion battery including the same. The technical gist of the present invention includes a method of manufacturing a nitrogen-carbon aggregate having a hierarchical pore structure, a nitrogen-carbon aggregate manufactured therefrom, and a sodium ion battery including the same. The method includes a first step of manufacturing a precursor solution including a nitrogen-containing carbon precursor, a second step of disposing a pair of metal wires in the precursor solution, and a third step of applying electric power to the metal wires to discharge a plasma, so that nitrogen is bonded to carbon of the carbon precursor, thus forming nitrogen-doped carbon nanoparticles of a turbostratic structure including micropores in the surface thereof and then forming an aggregate having a meso-macro hierarchical pore structure due to agglomeration of the carbon nanoparticles. The number of active sites in the aggregate is increased due to nitrogen doping.

    Auto-releasable new danger mark buoy

    公开(公告)号:US10946937B2

    公开(公告)日:2021-03-16

    申请号:US16490788

    申请日:2017-03-02

    Inventor: Seung Gi Gug

    Abstract: A buoy system according to one embodiment of the present invention includes a buoy body configured to provide buoyance; a fixing belt configured to fasten the buoy body to a ship structure; an auto-release unit configured to release the buoy body to be buoyed by releasing the fixing belt when a predetermined water pressure is reached; and an auto-reel chain box fixed to the ship structure, being opened in conjunction with releasing of the fixing belt, and including a chain which is reeled out when the buoy body is buoyed, wherein the auto-reel chain box comprises: a weight provided in the auto-reel chain box and being movable upward and downward according to a water pressure and buoyance; a pulley provided in the auto-reel chain box, having the chain wounded thereon and a plurality of teeth on an outer circumferential surface thereof; and a shaft having one end connected to the weight and the other end engaging with the teeth to fix the pulley and provided to be rotatable around a portion fixed in the auto-reel chain box.

    SAFETY BARRIER
    10.
    发明申请

    公开(公告)号:US20220228332A1

    公开(公告)日:2022-07-21

    申请号:US17712228

    申请日:2022-04-04

    Abstract: A safety barrier includes: a body installed on a road; a steel plate portion placed between the body and the road; and an anchor portion passing through the steel plate portion and having an upper part buried in the body and a lower part buried in the road, wherein a first space in which a middle part of the anchor portion other than the upper part and the lower part is placed, is formed between the body and the road, and when an impact is applied to the body, the body is moved while accompanying bending deformation of the middle part in the first space so that the impact is absorbed, and after bending deformation of the middle part occurs, the steel plate portion breaks the anchor portion to implement further movement of the body caused by the impact so that the impact is dispersed.

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