Pressure-maintenance device for producing composite parts by resin injection and associated method
AssigneeSnecma
InventorsRichard Mathon, Antoine Phelippeau
Life of this patent
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Abstract
A pressure-maintenance device for a resin injection system including an injection network connected to an injection mould, includes a pressurisation device adapted to inject a pressurised gas into a channelling; a first connector adapted to be connected to the resin injection network and adapted to be connected to the channelling; a second connector adapted to be connected to the injection mould of the injection system; the first connector being connected to the second connector by a pressure-maintenance channelling adapted to receive the gas injected under pressure.
Claims8
A resin injection system able to produce parts from composite materials, said system comprising:
- a resin injector;
- an injection mould comprising a cavity able to receive a woven preform;
- a resin injection network formed by a resin inlet channelling connecting the resin
- injector and said injection mould, and a resin outlet channelling able to discharge
- the excess resin injected into said cavity;
- a pressure-maintenance device for the resin injection system, said pressure-maintenance device comprising
- a pressurisation device adapted to inject a pressurised gas into a channelling;
- a first connector adapted to be connected to said resin injection network and adapted to be connected to said channelling;
- a second connector adapted to be connected to said injection mould,
- said first connector being connected to said second connector by a pressure-maintenance channelling adapted to receive said gas injected under pressure, and
- a vacuum generator for producing the vacuum in said injection system.
Dependencies are inferred from the claim text.