Engine blade containment shroud using quartz fiber composite
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorSprague Benjamin Mackenzie
Life of this patent
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Abstract
An engine fan containment shroud including a containment structure composed of a composite material including a reinforcing fiber having an elongation to break of at least about 3.6%. The preferred fiber is a quartz fiber having an elongation to break of at least about 5%. Additionally or alternatively, the reinforcing fiber, in particular quartz fiber, has a hardness of at least about 4 on the Mohs scale, as measured on bulk material, which resists cutting by an impacting object. The composite material and specifically an epoxy/quartz fiber composite provides for weight reduction while providing fan blade containment without loss of structural integrity and with improved resistance to impact and puncture.
Claims33
A ballistic structure comprising a wall composed of quartz fiber having an elongation to break of at least about 5%.
A containment shroud for high velocity projectiles, the containment shroud comprising a wall that defines an annular-shaped containment shell composed of a composite material including a reinforcing fiber having an elongation to break of at least about 5%.
A containment shroud for surrounding a plurality of blades of a turbo-machine, the containment shroud comprising a wall that defines an annular-shaped containment shell composed of a composite material including a reinforcing fiber having an elongation to break of at least about 5%.
A containment shroud for surrounding a plurality of blades of a turbo-machine, the containment shroud comprising a wall that defines an annular-shaped containment shell composed of quart fiber having an elongation to break of at least about 5%.
In a turbomachine hang a plurality of blades mounted to a disk and a blade containment shroud surrounding the blades, the containment shroud comprising a wall that defines an annular-shaped containment shell composed of quartz fiber having an elongation to break of at least about 5%.
Dependencies are inferred from the claim text.