Patent ID: 7892467

Claim:
Method of producing a shell member of fibre composite material by means of vacuum infusion, where the fibre material is impregnated with liquid polymer, and applying a mould ( 18 ) with a mould cavity, characterized in that, in the mould cavity: a) a lower distribution layer ( 11 ) is placed, b) a fibre insertion ( 1 ) including a plurality of fibre layers is placed above the lower distribution layer ( 11 ), c) a first upper distribution layer ( 9 ) and a second upper distribution layer ( 10 ) are placed at a transverse distance of each other above the fibre insertion, so that at least a part of the first distribution layer overlaps a first zone ( 2 ) of the fibre insertion ( 1 ), and at least a part of the second distribution layer overlaps a second zone ( 3 ) of the fibre insertion ( 1 ), the first zone ( 2 ) and the second zone ( 3 ) being separated by an intermediate zone ( 6 ) neither overlapping the first nor the second distribution layer ( 9 , 10 ), d) a first inlet channel ( 7 ) is placed above the first distribution layer ( 9 ), e) a second inlet channel ( 8 ) is placed on top of the second distribution layer ( 10 ), f) above the intermediate zone ( 6 ) of the fibre insertion ( 1 ) a semi-permeable membrane ( 5 ) is placed, which may expand overlappingly over the first distribution layer ( 9 ) and/or the second distribution layer ( 10 ), and which is permeable to gasses and substantially impermeable to liquid polymer, said semi-permeable membrane ( 5 ) communicating with a vacuum source, whereafter g) a vacuum bag ( 19 ) is placed on top of the mould ( 18 ), which is evacuated of air by means of the vacuum source, and polymer is directed into the mould via the first and the second inlet channels ( 7 , 8 ).