Method for producing a fibre-reinforced pressure vessel with pole cap reinforcement
AssigneeNproxx B.V.
InventorTristan Baumer
Life of this patent
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Abstract
The invention refers to a method of manufacturing a pressure tank, comprising an inner container and an outer layer made of a fiber material which is wound around the inner container. In performing the method, a retention device with several retention elements protruding therefrom is attached to an inner container so as to wind a local pole cap reinforcement in a dome-shaped pole cap portion of the inner container. Then the retention device is removed and an outer layer is produced by winding of fiber material, the outer layer surrounding the central portion and the pole cap portions of the inner container.
Claims10
Method of manufacturing a pressure tank, comprising an inner container and an outer layer made of a fiber material, which is wound around the inner container;
- characterized by the following steps:
- a) providing an inner container with a cylindrical central portion, having two opposite end portions the openings of which are each closed by a dome-shaped pole cap portion;
- b) attaching a retention device with several protruding retention elements in the area of an end portion of the central portion, the retention device being axially spaced from the opening of the end portion;
- c) manufacturing a pole cap reinforcement by winding fiber material around at least part of the pole cap portion and the end portion with the retention device, the fiber material being guided around the protruding retention elements of the retention device with reversal of direction;
- d) winding a circumferential winding around the end portion with the pole cap reinforcement, the circumferential winding being positioned between the opening of the end portion and the retention device;
- e) cutting the fiber material of the pole cap reinforcement between the retention device and the circumferential winding;
- f) removing the retention device;
- g) manufacturing an outer layer by winding fiber material, the outer layer enclosing the central portion and the pole cap portions of the inner container.
Dependencies are inferred from the claim text.