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    • 1. 发明授权
    • Articulated jet sled
    • 铰接喷射雪橇
    • US4037422A
    • 1977-07-26
    • US610105
    • 1975-09-04
    • Nico DEBoerRobert L. Olsen
    • Nico DEBoerRobert L. Olsen
    • E02F5/10E02F5/06
    • E02F5/104E02F5/107E02F5/108
    • An apparatus for entrenching submerged elongate structures, such as a pipeline, within the bed of a body of water. A spreader frame straddles the pipeline to be entrenched. Port and starboard sled frame members having pontoons are pivoted in the spreader frame on each side of the pipeline for pivotal movement. Each sled frame member carries a fluid jetting leg which includes jetting nozzles. Hydraulically operated linkage moves the sled frame members causing the jetting legs to substantially enclose the pipeline bringing the ends of the fluid jetting legs into close proximity beneath the pipeline. Jetting action by the nozzles forms a trench in the bed for receiving the pipeline. The fluid jetting legs are adjustable for various depths and for various sizes of pipeline. The combined structure formed by a sled frame member and fluid jetting leg has a center of gravity that is inboard of its pivot point causing the jetting legs to move apart upon the apparatus being urged off the submerged floor such that the jetting sled does not engage or tangle the pipeline.
    • 用于在水体的床内固定诸如管道的浸没式细长结构的装置。 吊具框架跨越管道固定。 具有浮筒的端口和右舷滑板框架构件在布置在框架中的管道的每一侧枢转以​​枢转运动。 每个滑板框架构件包括包括喷射喷嘴的流体喷射腿。 液压操作联动装置移动滑板框架构件,导致喷射腿基本上封闭管道,使得流体喷射腿的端部紧邻管道的下方。 喷嘴的喷射动作在床中形成用于接收管道的沟槽。 流体喷射腿可针对各种深度和各种尺寸的管道进行调节。 由滑板框架构件和流体喷射腿形成的组合结构具有在其枢转点的内侧的重心,使得喷射腿在设备被推出离开水下地板时移动分开,使得喷射滑板不接合或 纠缠管道。