Coil spring and method of fabrication thereof

    公开(公告)号:US11248674B2

    公开(公告)日:2022-02-15

    申请号:US16641617

    申请日:2018-08-16

    摘要: A composite spring made of a wire of a longitudinal axis curved around a spring axis in a winding direction and a method of fabrication thereof, the spring, the wire comprising a core; and fibers layers wound around the core, and an angular positioning, relative to the spring axis, of each one of the fiber layers being selected, along a length of the core, depending on the winding direction of the wire about the spring axis, to adjust at least one of: high natural frequency of the spring, resistance to buckling and resistance to tensile and compressive stress components induced by a compressive load on the spring.

    Spring system for high workloads
    3.
    发明授权

    公开(公告)号:US10808787B2

    公开(公告)日:2020-10-20

    申请号:US16061832

    申请日:2015-12-14

    发明人: Alejandro Andueza

    摘要: Spring systems for subsea applications and equipment projects for the oil and gas industry are preferably manufactured from composite materials and include at least one pair of springs consisting of a first spring component and a second spring component, mounted so as to offer a first central contact region and double curvature and rebound areas forming a coupling. The pair of springs are thus, self-centering.

    Composite coil spring
    5.
    发明授权

    公开(公告)号:US10385940B2

    公开(公告)日:2019-08-20

    申请号:US15964652

    申请日:2018-04-27

    发明人: Jun Yoshioka

    摘要: A composite coil spring includes a coil body that extends along a coiled axis. The coil body includes a core and fiber layers impregnated with a polymer material. The fiber layers are arranged around the core at different radial distances from the coiled axis. Each fiber layer extend around the coiled axis at an oblique fiber angle to the coiled axis. The fiber layers include at least one glass fiber layer and at least one carbon fiber layer. Each fiber layer includes a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers. The positive non-zero integer of at least one of the fiber layers is different from the positive non-zero integer of at least one other of the fiber layers.

    Composite coil spring
    7.
    发明授权

    公开(公告)号:US09982734B2

    公开(公告)日:2018-05-29

    申请号:US15584414

    申请日:2017-05-02

    发明人: Jun Yoshioka

    摘要: A composite coil spring includes a coil body that has a core and fiber layers impregnated with a polymer material. The fiber layers are wound around the core. The fiber layers extend around the coiled axis at oblique fiber angles. Each of the fiber layers includes a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers from 1 to 20. The positive non-zero integer of at least one of the fiber layers is different from the positive non-zero integer of at least one other of the fiber layers. At least one of the fibers layers is glass fibers and another of the fiber layers is carbon fibers, and each of an innermost fiber layer and an outmost fiber layer of the fiber layers is independently selected from glass fibers and carbon fibers.