Patent ID: 8062452
Filing Date: 2011-11-22
Classification: B29C,B29K,B29L,Y10T

Abstract:
1. A method of making a casing-and-diverging-portion unit, the method comprising the following steps: forming a fiber reinforcement by making a first fiber preform with a plurality of annular fiber plies formed as rings with a first type of fiber, the plies being stacked in a direction along a longitudinal axis of the unit, said first preform corresponding to the diverging portion of the casing-and-diverging-portion unit that is to be made, and making a second fiber preform with a second type of fiber, different from the first type of fiber, said second preform corresponding to the casing portion of the casing-and-diverging-portion unit that is to be made, and being placed on the first preform; maintaining the fiber reinforcement in a shape identical to that of the casing-and-diverging-portion unit that is to be made; and impregnating said fiber reinforcement with a thermosetting resin and polymerizing the resin.