Abstract:
The invention relates to composite pressurizable structures which are overwound with fibres or are braided. The pressurizable structures comprise axial sections which in turn comprise both concave and convex surfaces. The shape characteristics are related to geodesic as well as non-geodesic trajectories in regard of the fibres. Axial sections of the pressurizable structures can be rotated, expanded or bended with respect to the longitudinal axis of the pressurizable structure. Examples of uses of the pressurizable structure relate to pressure vessels and flexible pipelines, spring elements, robotic actuators and adaptable buildings. In another aspect, the invention relates to a method of production by means of braiding, which in principle allows for the construction of very large structures.
Abstract:
A fitting (260) with a dual locking swaging mechanism includes a projection to be inserted into the open end of an elastomeric tube (262). A ferrule (280) is connected at one end thereof to a body portion of the fitting and is swaged (286) over the tube to hold the tube onto the projection inserted into the tube. The tube is thereby held to the fitting by both frictional engagement of the tube with the projection and the ferrule and by the connection of the ferrule with the main body of the fitting.
Abstract:
격납 시스템과 이의 시공 방법이 개시된다. 격납 시스템은 액화가스 저장을 위한 내부 공간을 가지는 탱크와, 탱크의 외벽의 적어도 일부에 비접착 상태로 고정된 버퍼층과, 버퍼층의 외면을 덮으며 스프레이 방식으로 형성된 발포 단열층을 포함한다. 버퍼층은 발포 단열층보다 얇고 유연하며, 발포 단열층의 탄성계수보다 작은 탄성계수를 가지는 재료로 형성된다.
Abstract:
PROBLEM TO BE SOLVED: To provide an improved pressure vessel.SOLUTION: The invention relates to a fiber-reinforced pressure vessel (1, 6) comprising a rigid gas- or fluid-tight body (2, 7, 13, 19) overwound with fiber filaments (3, 10, 11, 18), where the fiber filaments are wound such that at least a number of fiber filaments can freely move with respect to one another and such that when the pressure vessel is under internal pressure the fiber filaments are deformed precisely in their longitudinal direction. The invention also relates to a method of manufacturing the fiber-reinforced pressure vessel in which no matrix material (for example, resin) incorporating at least a number of fiber filaments is used for a section of the pressure vessel where the fiber filaments can freely move with respect to one another.
Abstract:
PROBLEM TO BE SOLVED: To avoid the breakage of a tank and/or danger caused when a pressure rises. SOLUTION: The structural deck 11 of a vehicle comprises two tanks T1 and T2 for storing pressurized fluid in the vehicle. Each of the tanks comprises at least one cell network formed of cells 2 connected to one another through an orifice 3. The orifice 3 has dimensions such that the flow of the fluid due to the consumption of the fluid necessary for the use of the vehicle causes only a pressure drop of such a degree that does not affect the use of the vehicle and such that the leakage flow causes a pressure drop necessary for limiting the flow thereof when one or the plurality of cells are damaged. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
A tank has a generally prismatic shape, and is capable of containing a pressurized gas. The tank comprises a composite shell, which has fibrous reinforcements and a matrix extending continuously over the six faces of the prism and delimits a sealed internal cavity comprising a plurality of open cells. The tank comprises continuous fibrous reinforcements extending into and bonded to the composite shell and further extending through the internal cavity between two opposite faces of the tank. The tank is advantageously integrated into the floor of a vehicle, in particular to the structure of an aircraft.