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

1997-03-20

1998-10-06

McMahon, Marguerite

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

1231936, 123668, F02B 7508

Patent

active

058162119

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.

REFERENCES:
patent: 4618529 (1986-10-01), Yamamura et al.
patent: 4846051 (1989-07-01), Wade et al.
patent: 4864987 (1989-09-01), Kawamura
patent: 5063881 (1991-11-01), Kawamura
patent: 5408964 (1995-04-01), Rao
patent: 5469777 (1995-11-01), Rao

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