Patent ID: 8501073

Claim:
A device for injecting under an elevated pressure a resin into at least one fibre layer of a fibre-reinforced hollow product to be manufactured, comprising: a mould having a mould cavity that is surrounded by a mould wall for abutment of the fibre-reinforced hollow product thereagainst in a closed condition of the mould, a rigid part of the mould wall being movable with respect to another part of the mould wall in the closed condition of the mould to ensure a continued abutment of the movable part of the mould wall with the fibre-reinforced hollow product when shrinkage of the resin caused by curing thereof takes place subsequent to the injection process; and a pressure unit for pressing the movable part of the mould wall against the fibre reinforced hollow product upon shrinkage of the resin, wherein the mould includes an inner mould to be positioned in a cavity of the fibre-reinforced hollow product and an outer mould to be positioned on an outer side of the product, and at least a rigid part of the inner mould is movable in the closed condition of the mould, wherein a mould wall of the inner mould comprises rigid mould wall segments interconnected by a flexible material, wherein the pressure unit comprises a pressure chamber on a side of the movable part of the mould wall remote from the fibre-reinforced hollow product for pressing the movable part of the mould wall against the fibre-reinforced hollow product upon shrinkage of the resin under the influence of the pressure that prevails within the pressure chamber, and wherein the pressure chamber at least substantially adjoins the entire circumference of the inner mould.