Liner for a pressure vessel, and pressure vessel
A liner for a pressure vessel has a gas-tight body made from a polymer material. The gas-tight body has an outer surface in which depressions are formed, and a fiber reinforcement is arranged in the depressions. A pressure vessel with a liner of this type is also described.
1 . A liner for a pressure vessel, the liner comprising:
a gas-tight body comprising a polymer material and having, in an outer surface thereof, depressions extending in a direction of a longitudinal extent of the gas-tight body; and
a fiber reinforcement disposed in the depressions.
2 . The liner according to claim 1 , wherein
the fiber reinforcement is cohesively bonded to the body.
3 . The liner according to claim 1 , wherein
the polymer material comprises a thermoplastic material.
4 . The liner according to claim 1 , wherein
the fiber reinforcement comprises unidirectional continuous fibers.
5 . The liner according to claim 1 , wherein
the fiber reinforcement comprises UD fiber tapes.
6 . The liner according to claim 1 , wherein
the depressions in the liner conform to a load path.
7 . The liner according to claim 1 , wherein
the gas-tight body is a hollow body having a body circumference and a longitudinal extent running transverse to the circumferential direction, and
the fiber reinforcement runs in the direction of the longitudinal extent of the body.
8 . A pressure vessel comprising:
the liner according claim 1 ; and
a fiber composite body surrounding the liner.
9 . The pressure vessel according to claim 8 , wherein
a matrix material of the fiber composite body is a thermoset matrix material.
10 . The liner according to claim 1 , wherein the depressions are transmitted to an inner surface of the gas-tight body as projections.
11 . The liner according to claim 1 , wherein the depressions extend over an entire length of the gas-tight body.
12 . The liner according to claim 1 , wherein the fiber reinforcement is incorporated completely in the depressions, the fiber reinforcement not protruding with respect to a surface of the gas-tight body outside the depressions.
13 . The liner according to claim 1 , wherein the fiber reinforcement comprises carbon fibers, glass fibers and/or aramid fibers.
14 . A pressure vessel comprising:
a liner comprising:
a gas-tight body comprising a polymer material and having an outer surface in which depressions are formed, the depressions being transmitted to an inner surface of the gas-tight body as projections; and
a fiber reinforcement disposed in the depressions; and
a fiber composite body surrounding the liner.
15 . The pressure vessel according to claim 14 , wherein
a matrix material of the fiber composite body is a thermoset matrix material.
16 . A liner for a pressure vessel, the liner comprising:
a gas-tight body comprising a polymer material and having, in an outer surface thereof, depressions, the depressions being transmitted to an inner surface of the gas-tight body as projections; and
a fiber reinforcement disposed in the depressions.