公开(公告)号：US3881776A

公开(公告)日：1975-05-06

申请号：US41833273

申请日：1973-11-23

Applicant: US NAVY

Inventor： FASHBAUGH RICHARD H ,  GABERSON HOWARD A ,  STONE PHILIP L ,  WILLIAMS DONALD E ,  STEPHENSON JOHN M

IPC: E21D9/10 ,  E01G3/04

CPC classification number: E21D9/1093 ,  E21B2023/008

Abstract: A vermiculating polytoroidal thruster which provides large thrust and braking forces for various devices comprised of a plurality of inflatable bladders mounted on a spool and held in place by end plates. When the bladders are inflated, they squeeze against the inner surface of a tube or tunnel and generate large friction forces for breaking or thrusting. Thrust is provided by vermiculating motion which is generated by inflating one bladder while simultaneously deflating another. A net forward motion is achieved by providing controls for the axial expansion of the bladders. Selective inflation and deflation of certain bladders is controlled by a cycle timer and solenoid valves.

Abstract translation: 一种致密的多通道推进器，其为由安装在卷轴上并由端板保持在适当位置的多个可充气囊组成的各种装置提供大的推力和制动力。 当气囊膨胀时，它们挤压在管或隧道的内表面上，并产生用于断裂或推挤的大的摩擦力。 推力由通过膨胀一个膀胱而同时放气另一个而产生的蠕动运动提供。 通过提供用于囊的轴向膨胀的控制来实现净向前运动。 某些气囊的选择性充气和放气由循环计时器和电磁阀控制。