Self-balancing pressure hull device

    公开(公告)号:US10343749B2

    公开(公告)日:2019-07-09

    申请号:US15752586

    申请日:2016-08-09

    Abstract: A self-balancing pressure hull device, belonging to the field of pressure structure technology of deep-sea submersibles, being assembled by nesting, from inside to outside, a spherical inner housing, a spherical intermediate housing and a spherical outer housing around the sphere center, pairs of symmetric coaxial connecting shaft components being connected between the spherical inner housing and the spherical intermediate housing and between the spherical intermediate housing and the spherical outer housing, respectively; axes of the two pairs of connecting shaft components are perpendicular to each other so as to enable the spherical inner housing and the spherical intermediate housing to rotate relative to each other, and the spherical intermediate housing and the spherical outer housing to rotate relative to each other, and each of the connecting shaft components in the two pairs being provided with a spring damper for resisting the axial impact between each two adjacent housings.

    Crosshead Component of Large Diesel Engine

    公开(公告)号:US20170184147A1

    公开(公告)日:2017-06-29

    申请号:US15316749

    申请日:2015-06-01

    Abstract: Disclosed is a crosshead component of a large diesel engine. The crosshead component consists of a crosshead pin (1), slide blocks (2), wear-resisting plates (3), sealing covers (4), and a sleeve (5), and has a structure with H-shaped cross and longitudinal sections. The crosshead pin (1) is a cylinder provided with petal-shaped through holes. The slide blocks (2) are respectively fitted on and connected to outer circles of left and right ends of the crosshead pin (1). The sleeve (5) is inserted in and connected to the petal-shaped through holes (112) of the crosshead pin (1) to form oil inlet/return way cavities. Left and right end surfaces of the crosshead pin (1) are respectively connected to the sealing covers (4) for sealing the oil way cavities. Front and back ends of the slide blocks (2) are respectively connected to the wear-resisting plates (3). The crosshead component has excellent interchangeability, economy and convenience.

    SHIP AUXILIARY BERTHING DEVICE
    64.
    发明申请

    公开(公告)号:US20250137216A1

    公开(公告)日:2025-05-01

    申请号:US18746206

    申请日:2024-06-18

    Abstract: The disclosure belongs to a technical field of ship berthing equipment, and in particular to a ship auxiliary berthing device, specifically including: a first auxiliary component, a second auxiliary component and a third auxiliary component connected in sequence, the third auxiliary component is connected with a harbor shore, the first auxiliary component is abutted with the ship, and the first auxiliary component, the second auxiliary component and the third auxiliary component are all used for buffering and berthing the ship; the first auxiliary component includes an arc-shaped rod sliding in an arc shape, two ends of the arc-shaped rod are provided with buffering parts, the arc-shaped rod is arranged on a vertical plane, and the arc-shaped rod is concave to the ship.

    Deep-sea manned submersible and design method for pressure resistant hull curved structure thereof

    公开(公告)号:US11731736B2

    公开(公告)日:2023-08-22

    申请号:US17781719

    申请日:2021-04-16

    CPC classification number: B63B3/13 B63G8/001

    Abstract: A deep-sea manned submersible and a design method for a pressure resistant hull curved structure thereof, the deep-sea manned submersible comprising a main hull body, a propeller assembly, annular sliding channels, a brake disc, and a brake. Two annular sliding channels are provided, and are fixed symmetrically on two opposite side surfaces of the main hull body. The main hull body is inserted vertically through the upper surface of the propeller assembly, and by means of the two annular sliding channels is slidingly connected to the propeller assembly, such that the outer contour of the whole body formed by the impeller assembly and the main hull body takes a nautilus shell shape. The brake disc is of an annular shape, and fixed on an outer ring of the main hull body, and the brake is mounted on the propeller assembly and corresponds matchingly with the brake disc.

    PRESSURE-RESISTANT HULL FOR A SUBMERSIBLE AND DESIGN METHOD THEREFOR

    公开(公告)号:US20230080177A1

    公开(公告)日:2023-03-16

    申请号:US17996241

    申请日:2021-04-16

    Abstract: A pressure-resistant hull for a submersible, includes unit hulls, reinforcing ribs, connecting channels, and closure heads. A plurality of unit hulls are provided, and are sequentially strung together spiralling upward or spiralling downward, the closure heads being arranged on the unit hulls at the first position and the last position respectively, an observation window being provided on each unit hull respectively, adjacent two unit hulls in a horizontal direction being respectively connected by means of a reinforcing rib, and at least two connecting channels being provided between adjacent two rings of the unit hulls in the vertical direction. The design method includes using a spiral joining structure to facilitate organic adjustment of the number of unit hulls, thus having better utilization of space and aiding to greatly expand the space. The sensitivity of the limit load to defects is low, increasing axial rigidity, improving the overall pressure-resistive ability.

    XYLANASE MUTANT AND ITS PREPARATION METHOD AND APPLICATION

    公开(公告)号:US20220251527A1

    公开(公告)日:2022-08-11

    申请号:US17219550

    申请日:2021-03-31

    Abstract: The present invention discloses a kind of xylanase mutant and its preparation method and application, which relates to the technical field of genomic engineering and genetic engineering. Such mutant includes one or more mutants obtained by taking xylanase HwXyl10A as female parent to conduct saturation mutagenesis to the site of Gly363. Specifically, relates to obtaining 19 mutants through site-directed mutagenesis, and then conducting yeast expression to them, after that, obtaining two mutants with significantly improved specific activity and thermal stability through screening of thermal stability and catalytic activity; the present invention can significantly improve the thermal stability and catalytic efficiency of xylanase through modifying the site of Gly363, and is of important guiding significance for improving the thermal stability and the catalytic efficiency of the 10th family of xylanases and other glycoside hydrolases as well as lays the foundation for its application in industrial production.

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