Fiber reinforced ceramic matrix composite piston and cylinder/sl

Details Fiber reinforced ceramic matrix composite piston and cylinder/sl Fiber reinforced ceramic matrix composite piston and cylinder/sl

1995-08-16

1998-04-21

Denion, Thomas E.

Internal-combustion engines

Combustion chamber

Having coating or liner

1231936, 921701, 92222, 92223, 427230, F02B 7508

Patent

active

057407886

ABSTRACT:
This invention discloses a "ceramic" piston and cylinder/sleeve pair for an internal combustion engine. The pair has low coefficients of thermal expansion for closer parts tolerances without danger of seizing and/or breakage/cracking from dissimilar part expansions. A piston is formed of a structural fiber reinforced ceramic matrix composite material and then a combined first erosion-resistant and self-lubricating material is applied to a surface of a skirt portion of the piston. A cylinder/sleeve is formed of a structural fiber reinforced ceramic matrix composite material and then a second combined erosion-resistant and self-lubricating material is applied to the surface of the cylinder/sleeve.

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