Fiber reinforced ceramic matrix composite piston ring

Details Fiber reinforced ceramic matrix composite piston ring Fiber reinforced ceramic matrix composite piston ring

1997-12-12

2000-05-16

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

277937, 277943, F16J 912, F16J 920, F16J 926

Patent

active

060625694

ABSTRACT:
A heat-resistant, thermally stable, ductile piston ring for an internal combustion engine having a structure comprised at least partially of fiber reinforced ceramic matrix composite (FRCMC) material. The FRCMC material includes a polymer-derived ceramic resin in its ceramic state and fibers. The ceramic portion of the material for the most part provides the heat-resistance of the FRCMC material, while the fibers produce a desired degree of ductility in the FRCMC material. Filler materials may incorporated into the piston ring to produce the desired degree of hardness and/or coefficient of friction.

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