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US 4,726,334 AGranted
Composite cylinder housing and process
AssigneeAmoco Corporation
InventorsMatthew W. Holtzberg, Steven J. Henke, Lawrence D. Spaulding
Life of this patent
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Abstract
A lightweight composite cylinder housing is provided to decrease fuel consumption, attenuate noise, and permit increased speed of operation.
Claims20
A composite engine part, comprising:
- a thermoplastic, amide-imide resinous polymeric cylinder housing having a main body portion having a generally rectangular form with a front end, a back end and sides that slope upwardly and inwardly from a planar outwardly extending bottom flange and that merge with a planar top having at least one first generally circular aperture formed therein with said circular aperture being generally equally spaced from the sides of said form, a second generally circular aperture formed in the front end of said main body to receive a means for circulating a coolant, a plurality of apertures in said flange, a plurality of apertures in said planar top being generally equally spaced between said first circular aperture and the sides of said main body.
A composite engine part in accordance with claim wherein said cylinder housing comprises 10% to 60% by weight glass fiber.
A process for forming a composite engine part, comprising the steps of:
- inserting a core in a generally cylinder housing-shaped cavity of a mold providing a die to define a generally cylinder housing-shaped molding chamber;
- injecting a thermoplastic, amide-imide resinous polymer into said cavity to form a generally cylinder housing-shaped blank;
- cooling said cylinder housing-shaped blank below its plastic deformation temperature;
- removing said blank from said mold;
- post curing said amide-imide cylinder housing-shaped blank by solid state polymerization to enhance the strength and integrity of said amideimide cylinder housing-shaped blank.
2 more elements
Dependencies are inferred from the claim text.