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US 4,286,475 AGranted
Composite material flywheel hub
AssigneeThe Garrett Corporation
InventorsJohan A. Friedericy, Dennis A. Towgood
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Abstract
Unidirectional fiber-reinforced matrix material bars are stacked to form a lightweight, high strength hub for a composite material flywheel.
Claims21
An improved hub for a flywheel having a rim, said hub comprising:
- bar means, each being generally flat sided and comprising generally unidirectional filamentary material embedded in a matrix;
- a first plurality of said bar means positioned in generally parallel alignment in a first orientation;
- a second plurality of said bar means positioned in generally parallel alignment in a second orientation and interdigitated between the bars of said first plurality;
- and
- means for securing said first and second pluralities of bar means in a unitary structure with the flat sides of adjacent bar means in engagement and the filamentary material of each of said bar means generally radially aligned.
2 more elements
A flywheel comprising:
- a plurality of bar means, each having ends and a substantially uniform cross section and formed of substantially parallel filamentary material embedded in a matrix in a generally longitudinal orientation within the bar means, said bar means being stacked with a first set thereof extending in a first direction and a second set thereof extending in a second direction, each of said bar means engaging its adjacent bar means at a central portion thereof;
- means for securing said stacked bar means in a unitary structure;
- and
- rim means mounted on the ends of said bar means.
1 more element
Dependencies are inferred from the claim text.